JP4041530B1 - Recording apparatus, recording medium, reproducing apparatus, program, and method - Google Patents

Abstract

Provided is a recording apparatus that realizes expansion control that can satisfy user's attention and convenience while reducing the burden on the manufacturer side.
If you want to specify an extended attribute section for any playback path set for TS-VOB at once, set a section marker to specify the location of the extended attribute section for TS-VOB. Generate and generate in VOB information. When it is desired to individually specify the section for which the extended control is to be performed for any one playback path, a section marker that specifies the location of the extended attribute section for the playback path is generated in the PGC information. The generated VOB information and PGC information are written on the DVD. The section in which the extended control is to be performed and is specified using the section marker in the PGC information is an unviewed section on a specific playback path.
[Selection] Figure 13

Description

  The present invention relates to a recording apparatus, a reproducing apparatus, and a recording medium for recording a digital stream on a recording medium such as a DVD, CD, HD, and semiconductor memory card.

  In commercialization of the above-described recording apparatus, maintaining compatibility of digital streams recorded on the recording medium is a serious responsibility for the manufacturer of the recording apparatus. In order to ensure this compatibility, manufacturers have been actively engaged in activities related to standardization and standardization of recording formats on recording media. As a result, various unified standards such as the DVD-VIDEO RECORDING standard have been established.

  While keeping pace with the development of the unified standard, manufacturers are apt to commercialize recording devices that use “Extended Control” as a selling point in order to differentiate from other companies' products. “Extended control” is reproduction control that allows the manufacturer of the recording device to determine its contents based on its own judgment. The format standardized by the DVD-VIDEO RECORDING standard has universal value, and no manufacturer is allowed to perform playback control against this content. On the other hand, since the universal value is not necessarily required for the extended control, it is possible to define content with a deep product strategy and content with high fashionability as control content limited to one manufacturer.

The prior art of such extended control is described in the following patent documents.
JP-A-11-126463 JP-A-11-144441 JP-A-11-213628 JP-A-8-1111843 JP-A-2001-076464

    However, when multi-user optical discs become widespread, even if the above-described extended control can be differentiated from other companies' products, there is a risk that true user satisfaction cannot be obtained. The multi-user type optical disk is an optical disk used in a form shared by a plurality of users, and this form is expected to be incorporated into an optical disk having a large capacity of 40 GB or more. In the reproduction control of the multi-user optical disc, it is not necessary to perform uniform reproduction control for all users. In today's so-called “era of individuality,” the attention and convenience of each user should be respected, and even when playing an optical disc that supports multiple users, there is a need for expanded control that responds to each user with that particularity and convenience. It is done. On the other hand, for each of a plurality of users who share one recording medium, individual expansion control is performed for each user because the data format on the recording medium and the processing on the device side increase as the number of users increases. It must be complicated and incurs a burden on the manufacturer.

    An object of the present invention is to provide a recording apparatus that realizes extended control that can satisfy user's attention and convenience while reducing the burden on the manufacturer side.

  Here, how to achieve the above-described object will be described. In multi-user correspondence, a typical extension control to be performed individually for each user is cueing to an unviewed part. This is because the unviewed part is different for each user, and it is meaningful to reproduce it from a different position for each user. A typical extension control to be uniformly performed for a plurality of users is a reproduction skip for a CM section. This is because skipping the CM section is often desired uniformly by all users who share the recording medium. Whether it is performed simultaneously for a plurality of users or individually for each user varies widely depending on the contents of the extended control. The point at which the extended control is started and the point at which the digital stream is reproduced also depends on the content of the extended control.

  In the conventional extended control, the location where the extended control is to be executed using information called entry point information is indicated by “position” on the digital stream, that is, “point”. However, in the conventional “dot” notation, there is a limit to specifying the details of the extended control in detail. Even if it is possible to specify the section where the extended control should be performed by combining the position information, it is not shown until it is specified whether the extended control should be performed uniformly among multiple users or individually for each user. However, there is a possibility that it cannot follow the diversification of extended control associated with multi-user support.

Corresponding to diversification of extended control due to multi-user compatible, in order to achieve the above object, a recording apparatus according to the present invention, recording and digital stream, and management information for managing the reproduction of the digital stream on the recording medium The management information includes reproduction path information indicating a reproduction path of the digital stream and an access map for managing an address of the digital stream, and the reproduction path information includes a plurality of pieces of information for the digital stream. includes a reproduction route, if the contents of extended control to be performed at the time of reproduction is valid for a particular playback path, the first type of marker information specifying a section to be subjected to extended control in correspondence with the specific playback path generate, if the contents of extended control to be performed at the time of reproduction is valid for the plurality of playback paths, corresponding to a plurality of reproduction paths In correspondence with the access map of digital streams, designating means for generating a marker information of a second type which specifies a section to be subjected to the expansion control, for the first type of marker information, said first type of marker information The reproduction path information is included in a reproduction path-specific information unit and written to a recording medium. For the second type marker information, the second type marker information and the access map are information units specific to a digital stream. And a writing means for writing to a recording medium and the section to be subjected to the extended control, which is designated using the first type marker information, is the specific reproduction path The content of the extended control that is the upper non-viewing section and becomes effective on the specific playback path is to start playback of the digital stream from the non-viewing section. Is your.

As described above, since the recording apparatus according to the present invention is configured as described above, if one piece of reproduction path information is assigned to a specific user, the individual designation for one reproduction path can be performed as follows. A section in which extended control should be performed can be designated for each user. Thereby, an unviewed section can be set for each user. In addition, by specifying individual sections for such playback paths, it is possible to execute extended control that respects the attention and convenience of each user.

  Further, by specifying the sections in a batch for the plurality of playback paths, extended control such as skipping adult scenes and violent scenes and skipping CM sections can be performed uniformly during playback by a plurality of users. As a result, the recording apparatus is freed from the obligation to store a section in which expansion control should be performed for each user, and the processing can be simplified. By separately using extended control that should be performed individually for each user and extended control that should be performed uniformly for a plurality of users, a manufacturer of a recording apparatus can manufacture a recording apparatus with higher user needs and send it to the market. it can.

Here, in the recording medium, the first type marker information recorded in the same information unit as the reproduction path information is read from the information unit, and at the same time, the second type marker information recorded in the same information unit as the access map is read. In the section specified by the first type marker information in the playback path indicated by the reading means for reading the marker information from the information unit and the playback path information, the reproduction control specific to the playback path is performed. In the section that overlaps the section specified by the second type marker information, instead of the extended control or in addition to the extended control, the extended control specific to the digital stream is performed. You may comprise a reproducing | regenerating apparatus provided with the control means to perform. Assume that there are n types of digital streams and there are m playback paths for each user. In this case, if the control means performs stream-specific extended control for each of the n types of streams and performs playback path-specific extended control for each of the m pieces of playback path information, the number of variations of the extended control by the playback device is , N × m. In other words, by performing “n + m” extended control, n × m variations can be realized.

(First embodiment)
Embodiments of the recording medium according to the present invention will be described below. The recording medium according to the present embodiment is a rewritable DVD (hereinafter abbreviated as “DVD”) capable of recording moving image data according to the DVD-VIDEO RECORDING standard. FIG. 1 is a diagram showing a DVD 1 and a recording apparatus 100 according to this embodiment. The recording apparatus 100 encodes the broadcast content of the broadcast signal received via the terrestrial antenna 101 and the parabona antenna 102 and writes it on the DVD 1. This DVD 1 is a multi-user compatible DVD shared by two users (user A and user B) in the figure.

  The DVD 1 has a layer hierarchy such as a physical layer, a file system layer, and an application layer, and data in a digital stream format is recorded by the recording device 100. FIG. 2 is a diagram showing the structure (file structure) of the DVD 1 on the file system layer with a broken arrow. In the file structure of FIG. 2, a DVD_RTAV (RealTime Recording Audio Video) directory is arranged directly under the ROOT directory, and an AV file in which several TS-VOBs are recorded and management information in which various management information is recorded. Files are placed. TS (Transport Stream) -TS-VOB (Video Object) is data in a stream format recorded in a transport stream format, and is distinguished from a program stream format VOB.

  The digital stream referred to in the “claims” and “means for solving the problems” in this application is the TS-VOB. FIG. 3 is a diagram detailing the structure of TS-VOB recorded in an AV file in stages. In this figure, the AV file shown in FIG. 2 is shown in the seventh level which is the lowest level. The sixth row in FIG. 3 shows TS-VOB recorded in the AV file. As shown in this figure, TS-VOB is obtained by multiplexing the video stream and audio stream shown in the first stage. The video stream located at the first level is an array of a plurality of picture data pi1, 2, 3,. All of these picture data are displayed in one display period (also called a video frame) of the display. In the NTSC display, the video frame is about 33 msec (exactly 1 / 29.97 sec), and in the PAL display, the video frame is 40 msec. These picture data are subjected to compression coding based on the correlation between frames. Therefore, the picture data constituting the video stream includes Bidirectionally Predictive (B) pictures that are compressed using correlation with images to be reproduced in the past and future directions, images to be reproduced in the past direction, and There are types such as Predictive (P) pictures that are compressed using the correlation of Intra (I) pictures that are compressed using the spatial frequency characteristics within the image for one frame without using the correlation .

  The smallest unit that can be decoded in a video stream is called GOP (Group Of Picture). A GOP is a set of picture data including at least one I picture and having a playback time of about 1.0 seconds. In FIG. 3, the video stream shown at the first level is divided into a plurality of GOPs at the second level. Since the compression encoding method for picture data is a variable code length method, the GOP data lengths are different from each other. Regardless of the size of each GOP when recording on a DVD, the GOP sequence is divided into a plurality of parts. The division part obtained by the division is stored in the PES packet sequence shown in the third row. On the other hand, the audio stream located on the right side of the first stage is also divided into a plurality of parts, and the divided part obtained by the division is stored in the PES packet sequence shown in the third stage. The PES packet is a packet storing a divided part of the video stream and the audio stream as shown in the third row of FIG. 2, and “DTS” indicating when a part of the video stream and the audio stream is decoded. “PTS” indicating when the partial decoding result is displayed is added to the header.

  The PES packet sequence storing the GOP sequence is multiplexed (tj1 in the figure) with the PES packet sequence storing the audio stream to form the TS packet sequence shown in the fourth row. One or more GOPs and audio data multiplexed together with the picture data form a VOBU (Video Object Unit) as shown in the fifth row. VOBU is a minimum access unit of TS-VOB, and is configured by arranging video packs-audio packs in the MPEG standard. The TS-VOB shown in the sixth row has a configuration in which a plurality of VOBUs are arranged in time series. The above is the internal configuration of TS-VOB.

  The division and multiplexing shown in the third to fifth stages are unique to TS-VOB, which is different from conventional DVDs. Conventional VOBs recorded on DVDs, that is, VOBs in the program stream format, are composed of a plurality of packs, and one PES packet is stored as it is in each pack. On the other hand, in a transport stream format TS-VOB, a PES packet is divided into a plurality of parts and stored in each TS packet. FIG. 4 is a diagram illustrating how a PES packet is stored in a TS packet.

  The structure of the TS packet is as shown in the third row of FIG. 4 and is composed of a “TS packet header”, an “application field”, and a “payload part”. It has a size of 188Byte. The data size of 188 bytes is the same size as the ATM packet transmitted through the ATM transmission path, and consideration is given to recording the packet as it is transmitted through the transmission path.

  The “payload” stores a divided portion obtained by dividing the PES packet into a plurality of pieces. If the PES packet is part of a video stream, this payload corresponds to the video layer. In FIG. 4, the PES packet shown in the first stage is divided into a plurality of parts as shown in the second stage, and each divided part is a TS packet in the third stage as shown by arrows ct1,2,3. Stored in the payload.

  The structure of the “TS packet header” is shown with a dashed arrow hg1. As shown by the arrow hg1, the “TS packet header” includes a “PID (Packet Identifier)” that identifies which video stream the TS packet belongs to and which audio stream, and a PES packet in the payload. A “unit start indicator” indicating where it exists and “applied field control information” indicating whether an applied field continues to exist in subsequent TS packets are stored.

  In the “applied field”, when a divided portion of a video stream is stored in the payload, information on the system layer of the video stream is described. Such information on the system layer includes “PCR (Program Clock Reference)” and “random access display flag” drawn out by a dashed arrow hg2. PCR is a reference value of a standard clock (STC (system time clock)) of a device that decodes a stream. The reference value for the processing is a reference for performing the process of demultiplexing the transport stream (1) and the process of reconstructing the transport stream into various PES streams such as video streams (2). Value. The “random access display flag” indicates whether or not the first frame of the access point of the video stream is stored in the PES packet of the corresponding payload portion. An access point is a unit within a stream that can be decoded independently, and a random access display flag indicates whether or not the first frame (I picture) of the GOP exists.

  The above is the difference between TS-VOB and the program stream format VOB. Next, we will explain how TS-VOB is recorded on DVD. A DVD has a plurality of ECC blocks, which are error-correctable recording areas. A plurality of TS packets constituting the transport stream are converted into units called capsules and recorded in the ECC block. The capsule is formed by arranging a plurality of TS packets to which ATS is added. ATS (Arrival Time Stamp Information) is information indicating the timing at which the TS packet arrives inside the apparatus.

  Next, the internal structure of the management file will be described. FIG. 5 shows the internal structure of the management file. As shown by a dashed arrow fs0 in the figure, the management file includes a plurality of VOB information (VOB # 1 information, VOB # 3 information, VOB # 3 information...) And a plurality of PGC information (PGC Information # 1, # 2, # 3 ...). “VOB information # 1, # 2, # 3...” Is information indicating details of each TS-VOB in the DVD. A broken lead line hs1 in the figure indicates details of VOB # 1 information corresponding to VOB # 1 among these VOB information.

  As shown in this lead line hs1, VOB # 1 information includes a “TS-VOB identifier” that uniquely identifies the corresponding TS-VOB, a “TS-VOB recording date / time” that indicates when the TS-VOB was recorded, and a TS -"Video coding mode" that shows how the video stream multiplexed into VOB is compressed and encoded, and how the audio stream multiplexed into TS-VOB is compressed and encoded "Audio coding mode" indicating whether or not, "Access map" and "Section marker" for the corresponding TS-VOB.

  The “access map” is a reference table for indirectly referring to the addresses of a plurality of cue positions in the TS-VOB using time information. By tracing the lead lines hs2 and hs3, the access map is refined sequentially. The access map is composed of entry information corresponding to each VOBU as indicated by the lead line hs2, and each entry information, as indicated by the lead line hs3, indicates the length of time required for playback of the VOBU “VOBU playback time”. And “VOBU size” indicating the data size of VOBU itself. Since variable length code compression is adopted, even if the size and playback time of each VOBU including GOP varies, it is possible to respond to the playback time from any playback time by referring to this "Entry Information". It is possible to cue to the picture data in the VOBU.

  Next, the internal configuration of PGC information will be described. PGC information, as shown by the lead line hs4, is based on the “playback path information” that indicates the playback path for TS-VOB playback via the access map, and the “section marker”. Become. The feature of the playback path information is in its notation. That is, since an access map exists in the management information, the playback path information is described in an indirect reference format using this as a reference table. The reason why the playback path information is described in the indirect reference format is to eliminate the load of updating the playback path information when editing is performed on the TS-VOB. Details of the reproduction path information will be described. As shown by the lead line hs5, it consists of an array of a plurality of cell information (cell information # 1, # 2, # 3...). Cell information, as indicated by lead line hs6, "TS-VOB identifier" indicating the TS-VOB corresponding to the cell information, "start point information" which is time information indicating the playback start position in the TS-VOB, It consists of “end point information” which is time information indicating the playback end position in the TS-VOB. A section in which the start point and end point are specified by these time information is called a “cell”, and the array of cell information in the playback path information indicates in what order these cells are played back. In the playback path defined by such a notation, the recording apparatus 100 that records the TS-VOB automatically generates at the time of recording (1), and is recorded according to the user's editing operation (2) There are two types, and it is keeping in mind that TS-VOB can be played back through various routes.

  FIG. 6 is a diagram schematically showing indirect reference based on reproduction path information. In this figure, each of TS-VOB # 1 and TS-VOB # 2 is composed of a plurality of VOBUs, and each VOBU includes a GOP. The access map in the VOB information designates the sector addresses of these multiple GOPs as indicated by arrows ay1, 2, 3, and 4, and these sector addresses are indirectly referenced through the access map. . The arrows jy1, 2, 3, and 4 in the figure schematically indicate GOP designation based on time information. That is, the GOP designation based on the time information (arrows jy1, 2, 3, and 4) designates any one of a plurality of GOPs included in the TS-VOB through the access map. The reproduction path information in the figure represents the reproduction path by a combination of time information indicated by the arrows jy1, 2, 3, and 4.

Next, an application example in the case where various information configured as described above is applied to a multi-user compatible DVD will be described. FIG. 7 is a diagram showing a data structure on a DVD that realizes multi-user support. In FIG. 7, two TS-VOBs such as TS-VOB # 1 and TS-VOB # 2 are recorded on the DVD, and VOB information # 1 and # 2 are assigned to each of these TS-VOBs. The playback path information # 1 and # 2 recorded together with these define the playback paths assigned to the two users (user A and user B) shown in FIG. The playback path desired by user A is to play part (1) , part (2) of TS-VOB # 1, and part (3) of TS-VOB # 2 in the order (1) (2) (3). are those that, playback path the user B desires the portion of TS-VOB # 1 (4), those that play in the order of a portion of the TS-VOB # 2 (5) (4) (5) is there. PGC information # 1 assigned to user A includes cell information # 1, # 2, and # 3, and PGC information # 2 assigned to user B includes cell information # 4 and # 5, respectively.
In these cell information # 1 to # 5, the start point-end point of part (1) to part (5) is specified by indirect reference. Since it is specified by cell information, a part of (1) to (5) is treated as a cell.

Arrows rf1 and rf2 in the figure symbolize this indirect reference. As can be understood from these arrows rf1 and rf2, the start points st1, st2, st3 and end points ed1, ed2, ed3 of part (1) to part (5) of TS-VOB # 1, TS-VOB # 2 Is specified by indirect reference via an access map corresponding to each of TS-VOB # 1 and TS-VOB # 2.
The above is VOB information and PGC information. The feature of this embodiment is that section markers are provided in the VOB information and in the PGC information in such a hierarchical structure. FIG. 8 is a diagram showing section markers provided inside the VOB information and inside the PGC information.

  These section markers are information that marks a section that is part of the playback path indicated by the playback path information and is recognized by the recording apparatus 100 as having an extended attribute. "Extended attribute" is an attribute that enables extended control. When playing back via the playback path, extended control is performed according to this extended attribute in the section specified by this section marker in the playback path. Just do it. The internal structure of the section marker included in the VOB information is as indicated by a broken line arrow hs7 in FIG. 8, and “attribute type” indicating what type of extended attribute the extended attribute section indicated by itself has. In the multiple playback paths referring to the TS-VOB, in the multiple playback paths referring to the TS-VOB, "start point information" that is time information indicating where the start point of the extended attribute section is. “End point information” that is time information indicating where the end point of the extended attribute section is, what kind of extended control should be performed in this extended attribute section, and what can be the standard of the extended attribute section Consists of “detailed information” indicating something.

  The section marker included in the PGC information is shown by being drawn with a broken lead line hs8. The section marker is an “attribute type” that indicates what type of extended attribute the section marker whose location is indicated by itself, and the starting point of the extended attribute section among multiple cells in the playback path corresponding to the playback path information. “Start cell ID” indicating which is included, “Start point information” that is time information indicating the start point of the extended attribute section in the cell, and a plurality of playback paths corresponding to the playback path information “End cell ID” that indicates which cell contains the end point of the extended attribute section, “End point information” that is time information indicating the end point of the extended attribute section in the cell, this It consists of “detailed information” indicating what kind of extended control should be performed in the extended attribute section, what can be the standard of the extended attribute section, and the like.

  This section marker has the following significance in VOB information and PGC information. The section marker in the VOB information is used when the TS-VOB corresponding to the VOB information is referred to by a plurality of playback paths and the extended attribute section is designated collectively for the plurality of playback paths. On the other hand, the section marker in the PGC information is used when the TS-VOB corresponding to the VOB information is referenced by multiple playback paths, and when an extended attribute section is individually specified for a specific playback path. Used.

A description will be given of how to specify an extended attribute section when there is an extended attribute section having an unviewed attribute in the playback path for the two users shown in FIG. FIG. 9 is a diagram showing an extended attribute section provided in the playback path for user A. In the figure, the middle position ty1 in the part (1) and the end position yn1 in the part (3) are respectively the start point and end point of the unviewed section that the user A has not yet viewed. The section marker existing in PGC information # 1 is located in the middle of this part (1) by indirect reference via the access map and cell information corresponding to TS-VOB # 1 and TS-VOB # 2. ty1, the end position yn1 of part (3) is specified. As mentioned earlier, since the cell information itself indirectly references the location on the TS-VOB via the access map, the section marker is an extended attribute with an unviewed attribute due to "indirect reference to indirect reference". The start and end points of the section are specified. The “start cell ID” and “end cell ID” of the section markers in FIG. 9 specify cell information # 1 and cell information # 3 as indicated by arrows sr1 and sr2. It can be seen that the start point and end point of the extended attribute section are specified by “indirect reference to indirect reference” via the cell information specified by the start cell ID and end cell ID and the access map. Arrows rr1 and rr2 in the figure symbolize this “indirect reference to indirect reference”. It can be seen from this “indirect reference to indirect reference” that the start point ty1 and end point yn1 of the extended attribute section having the unviewed attribute are specified by the section marker.

FIG. 10 is a diagram showing a section marker for designating an extended attribute section having an unviewed attribute for the playback path for user B. In the figure, the middle position ty2 of the part (4) and the end position yn2 of the part (5) are assumed to be the start point-end point of the extended attribute section having the unviewed attribute. The section marker in PGC information # 2 designates the start point and end point of the extended attribute section that user B has not yet viewed by “indirect reference to indirect reference”. According to the section marker in the figure, the “start cell ID” and “end cell ID” of the section marker specify cell information # 4 and cell information # 5 in the PGC information as indicated by arrows sr3 and 4 . The start point-end point of the extended attribute section is designated by “indirect reference to indirect reference” via the cell information # 4 and cell information # 5 in the PGC information and the access map in the VOB information. Arrows rr3 and rr4 in the figure symbolize this “indirect reference to indirect reference”.

  By providing a section marker in the PGC information, an extended attribute section that matches each user's individuality, attention, and convenience can be set for the playback path for each user. The above is an application by providing a section marker in PGC information. Note that, in the section marker in the PGC information, it is not essential to use the end point information indicating the end point and the end cell ID indicating the cell where the end point is located. This may be omitted, or the end point of the extended attribute section may be expressed using other parameters (equivalent ones such as the number of VOBUs and the number of picture data). It is desirable to specify the start point of the unplayed section exactly where the user stopped watching when specifying the section that the user has not watched yet as the extended attribute section. This is because the point coincides with the end point of the playback path defined by the user and is often determined implicitly.

  Next, an application when a section marker is provided in VOB information will be described. FIG. 11 is a diagram showing VOB information in which section markers are incorporated. In the figure, hatched parts ht1 and ht2 are parts of TS-VOB recognized as extended attribute sections having CM attributes. The sound attribute and designation by the user can be considered as the basis of what is recognized as the CM attribute, but these are not questioned here. If user A and user B want to skip the recognized extended attribute section uniformly, specify the extended attribute section with this CM attribute for the playback path of user A and user B. The desire to want is born. The location of the CM section in the playback path for user A and user B is as indicated by the arrows in the figure. In the playback path for user A, CM sections exist from position yf1 to position yf2, from position yf3 to position yf4, and in the playback path for user B, CM sections exist from position yf5 to position yf6, and from position yf7 to position yf8. The section marker in the VOB information realizes batch designation of extended attribute sections for all users who refer to TS-VOB # 1. In this figure, the arrows dr1 and dr2 described directly toward the TS-VOB symbolically indicate collective designation by section markers in the VOB information. That is, the direct arrows dr1 and dr2 have the meaning of combining the designation of the extended attribute section for the playback path of the user A and the designation of the extended attribute section for the playback path of the user B. Arrows yf1, yf2, yf3, and yf4 indicate designation of extended attribute sections for the playback path of user A, and arrows yf5, yf6, yf7, and yf8 indicate designation of extended attribute sections for the playback path of user B. The collective designation symbolized by the arrows dr1 and dr2 has the same significance as a bundle of designation of extended attribute sections for a plurality of playback paths. By realizing simultaneous designation of each user's playback path, section marker notation can be made simple and easy to understand.

  What about the part that is specified as the extended attribute section by the section marker in the VOB information but is not defined as the playback path by the playback path information? In the example of FIG. 11, the portions indicated by broken lines hh1 and hh2 are designated as extended attribute sections by section markers in VOB information # 1 and # 2, but the playback path defined in VOB information # 2 It is a part not belonging to. The section designation by the section marker in the VOB information # 1 and # 2 does not extend to the parts indicated by the broken lines hh1 and hh2. This means that the playback path defined by the playback path information has priority over the superiority of the section marker in the VOB information and the playback path defined by the playback path information. That is, even if the extended attribute section is specified by the section marker in the VOB information, playback control and extended control are not performed at this location unless the playback path information defines the playback path.

  A description will be given of what kind of playback control is performed in two playback paths in which extended attribute sections are specified simultaneously. FIG. 12 is a diagram showing what kind of extended control is performed on the playback path for user A and the playback path for user B. The horizontal arrows yc1,2,3 in the figure symbolically indicate the process as it is according to the playback path, and the curves cv1,2,3 symbolically indicate the skip process during playback of the user A and the user B. . Since skip processing is performed in the CM section during playback of user A and user B, skipping in the CM section is performed uniformly by specifying the extended attribute section with the CM attribute in the section marker. I understand that. In the section marker in the VOB information, it is the same as the PGC information that it is not essential to use the end point information indicating the end point. This may be omitted, or the end point of the extended attribute section may be expressed using other parameters (equivalent ones such as the number of VOBUs and the number of picture data).

  Next, how the section start point is represented by the section marker start point information will be described. The start point information in the section marker in the VOB information indicates the location of the start point of the extended attribute section with a time accuracy equal to or less than the video frame of the picture data in the TS-VOB corresponding to the section marker. As a result, the portion where the extended control is to be performed is expressed in detail by the section marker in the VOB information.

  On the other hand, the start point information in the section marker in the PGC information also indicates the location of the start point of the extended attribute section with a time accuracy equal to or less than the video frame of the picture data in the TS-VOB. This TS-VOB is a TS-VOB corresponding to the cell specified by the start cell ID of the section marker. As a result, the location where the extended control is to be performed is expressed in detail by the section marker in the PGC information.

  The time accuracy below this video frame is preferably expressed by a combination of time accuracy of 1 / 27,000,000 seconds and time accuracy of 1 / 90,000 (= 300 / 27,000,000) seconds. The time accuracy of 1 / 90,000 seconds takes into account the common multiple of the frame frequency of NTSC signals, PAL signals, DolbyAC-3, and MPEG audio, and the time accuracy of 1 / 27,000,000 seconds is the clock frequency on the playback device side. It is specified considering 27MHz.

  The extended attribute section specified by the section marker in the VOB information was a CM section in which the extended control of “skip” was to be performed uniformly for each user. , It may be specified as an extended attribute section having extended control of “skip”. For example, when playing TS-VOB, parents discover a sexual or violent scene. If you decide that you don't want to show them to others in your family, you can set up section markers in the VOB information and designate these scenes as extended attribute sections. By doing so, these scenes can be skipped during playback by all users. In addition, the extended control to be performed in the CM section is an extended control called “Skip” extended control. For example, the URL of the sponsor company related to the CM section is displayed in an overlapping manner on the CM section, or the sponsor company is displayed. There is a thumbnail display of the logo mark.

  In addition, the extended attribute section specified by the section marker in the PGC information is an unviewed section in which the extended control of “cue up” is to be performed, but fast forward / rewind by the user A and the user B in the past. You may designate the area where this was performed as an extended attribute area. Thereby, the extended control of repeating the same processing in these extended attribute sections can be easily realized.

  In the present embodiment, one section marker is provided in one PGC information, but a plurality of section markers may be provided. The extended attribute sections specified by the plurality of section markers may overlap each other. Similarly, although one section marker is provided in one VOB information, there may be a plurality of section markers. The extended attribute sections specified by the plurality of section markers may overlap each other.

  (Second Embodiment) This embodiment is an embodiment relating to the recording apparatus 100 for TS-VOB according to the first embodiment. The recording apparatus 100 mainly executes a recording process for the TS-VOB, but can perform a reproducing process for the TS-VOB. That is, it is a hybrid type recording apparatus 100 having both functions of the recording apparatus 100 and the reproducing apparatus. FIG. 13 is a diagram showing an internal configuration of the recording apparatus 100. The components shown in this figure are classified as either (i) those used for both recording processing and playback processing, (ii) those used only for recording processing, and (iii) those used only for playback processing. .

  First, components used for both recording processing and reproduction processing will be described. Such components include a user interface unit 2, a drive device 3, a resident memory 4, and a track buffer 5. The user interface unit 2 accepts an operation for instructing special reproduction such as recording of a broadcast program, selection of reproduction path information recorded on a DVD, reproduction, fast forward, and rewind from the user via a remote control or a panel button.

The drive device 3 includes a base for setting a DVD, a spindle motor that clamps and rotates the set DVD, an optical pickup for reading a signal recorded on the DVD, and an actuator for the optical pickup. Do. Access to the DVD includes VOBU writing during program recording and VOBU reading during playback.
The resident memory 4 is a memory for resident VOB information and PGC information. The reason why the VOB information and the PGC information are resident in this memory is to avoid a conflict between the disk access (a) for recording the VOBU and the disk access (b) for updating the management file. When the VOBU recording is finished, the VOB information and PGC information stored in the resident memory 4 are written back to the DVD.

  The track buffer 5 is a buffer for temporarily storing a VOBU to be written to the DVD and a VOBU read from the DVD. The purpose of storing the VOBU to be written to the DVD and the VOBU read from the DVD in the track buffer 5 is to absorb the speed difference between the decoding speed by the decoder 16 and the reading speed from the DVD by the drive device 3. In addition, there is an object of absorbing the speed difference between the encoding speed by the encoder 7 and the writing speed to the DVD by the drive device 3.

The above are the components used in common for the recording process and the playback process. Next, components used for the recording process will be described. This component includes an analog tuner 6, an encoder 7, a digital tuner 8, an extraction unit 9, an analysis unit 10, a map creation unit 11, an extended attribute section detection unit 12, a CM section detection unit 13, a reproduction path information creation unit 14, There is a recording control unit 15.
The analog tuner 6 obtains an analog broadcast signal corresponding to a single program by modulating and selecting a broadcast wave transmitted from the broadcast station. The encoder 7 encodes a signal section of an analog broadcast signal corresponding to a single program output from the analog tuner to obtain a VOBU. The encoder 7 is a video encoder (1) that obtains a GOP by encoding a video signal in an analog broadcast signal, an audio encoder (2) that obtains an audio data string by encoding an audio signal in the analog broadcast signal, A multiplexing unit (3) for multiplexing GOP and audio data and obtaining VOBU; Each time a GOP is generated, the encoder 7 outputs the playback time of the VOBU and the data length of this VOBU to the map creation unit 11.

  The digital tuner 8 obtains a digital broadcast signal corresponding to a single program by modulating and selecting a broadcast wave broadcast from a broadcast station. In the present embodiment, the recording apparatus 100 obtains a digital broadcast signal by incorporating the digital tuner 8. However, the recording apparatus 100 may obtain a digital broadcast signal from the digital tuner 8 incorporated in a separate apparatus such as an STB (SetTopBox). . In this case, the recording apparatus 100 must be provided with a digital interface for receiving an input of a digital broadcast signal from the STB.

  The extraction unit 9 extracts a TS packet sequence from the signal section of the digital broadcast signal and adds an ATS to each TS packet to obtain a VOBU. The analysis unit 10 is a component implemented in the extraction unit 9, and determines which TS packet includes the head of the access point by referring to the random access display flag in the application field of the TS packet. . Further, the detection of the access point in the TS packet is detected by referring to the unit start indicator of the TS packet. After this determination process and detection process are repeated for a plurality of TS packets, the VOBU size and the VOBU playback time are calculated. The size of the VOBU is obtained by calculating the difference from the start position of the access point to the start position of the subsequent access point. The VOBU playback time is obtained by calculating a difference from the PTS at the head position of the access point to the PTS at the head position of the subsequent access point. The VOBU size and playback time thus obtained are output to the map creation unit 11.

The map creation unit 11 associates the size and playback time of the VOBU output from the encoder 7 and the analysis unit 10 with the identifier of the VOBU, obtains entry information about the VOBU, and writes it into the resident memory 4. If the entry information generation process is repeated for each VOBU included in the TS-VOB, an access map can be obtained.
When the content of the extended control performed at the time of playback is CM skip and is uniformly valid in a plurality of playback paths, the extended attribute section detection unit 12 indicates a plurality of sections to be subjected to the extended control by a plurality of playback path information. As shown in FIG. 11, the reproduction path is designated collectively. In order to realize such batch specification, the extended attribute section detection unit 12 creates a section marker indicating where the extended attribute section specified in batch in TS-VOB exists, and incorporates it in the VOB information. The section marker is created here by the following process. The extended attribute section detection unit 12 monitors what attributes the signal sections constituting the digital broadcast signal and the analog broadcast signal have. If there is an attribute change, the position on the TS-VOB corresponding to the change point is detected. Since such a change point is considered to be the position where extended control should start, that is, the start point of the extended attribute section, create a section marker that specifies the extended attribute section with this change point as the start point, and add VOB information. Include in. In creating the section marker, the extended attribute section detection unit 12 uses the PES packet input to the encoder 7 and the extraction unit 10 at the time of detection or the PTS of the PES packet output from the encoder 7 and the extraction unit 10, Express the change point.

  The CM section detection unit 13 is a component mounted in the extended attribute section detection unit 12, and a signal section having a stereo sound attribute is inserted in the middle of a broadcast signal having a monaural sound attribute. In this case, the position on the digital stream corresponding to the change point from the analog sound to the stereo sound is detected. Since such a change point can be considered as the start point of the extended control called “CM skip”, that is, the start point of the extended attribute section with CM attribute, specify the extended attribute section starting from this change point Create a section marker to be included and include it in the VOB information.

  When the writing of the TS-VOB to the DVD is completed, the playback path information creation unit 14 selects any TS packet that constitutes the TS-VOB as a cell start point, and another TS packet that constitutes the TS-VOB. Is selected as the end point of the cell, and cell information is created using the PTS assigned to these as start point information and end point information. The generation of cell information is repeated, and the generated cell information is arranged in the memory to obtain playback path information, and PGC information including the playback path information is generated. If the playback path is user-defined, the operation of selecting the start point and end point of the cell is performed according to the user operation accepted by the user interface unit 2.

  The recording control unit 15 realizes write control on the premise of buffering by the track buffer 5. This writing control waits until the track buffer 5 is filled with the TS packet output from the encoder 7 or the extraction unit 9, and if it is filled, writes a plurality of TS packets in the track buffer 5 to the ECC block of the DVD. That's it. If the user performs a recording end operation, the TS packets stored in the track buffer 5 are written to the ECC block of the DVD, and the VOB information and PGC information stored in the resident memory 4 are written to the DVD. The recording process is terminated.

  The above are the components that realize the recording process in the recording apparatus 100. Next, components for realizing the reproduction process in the recording apparatus 100 will be described. Such components include a decoder 16, a playback control unit 17, an extended attribute section setting unit 18, and an unviewed section detection unit 19. The decoder 16 includes a demultiplexer (1) for separating the VOBU read from the DVD by the drive device 3 into a video data sequence and an audio data sequence, a video decoder (2) for decoding the video data, and an audio decoder for decoding the audio data. (3) is provided, and an AV signal which is a video-audio multiplexed signal is output to a television.

  The reproduction control unit 17 obtains the address on the DVD of the TS packet that is the start point of the cell by indirect reference using the access map as a reference table. The same indirect reference is performed for the TS packet that is the end point of the cell, and the address on the DVD of the TS packet that is the end point of the cell is obtained. When the addresses on the DVD of TS packets corresponding to the start point and the end point are calculated, the drive device 3 is instructed to read between both addresses, and the decoder 16 is instructed to decode the read TS packet. . If such playback control is performed for a plurality of pieces of cell information constituting playback path information, playback control according to the playback path information is realized. The above reproduction control is basic, and the recording apparatus 100 realizes special reproduction by performing irregular VOBU reading. For example, it is possible to realize fast-forwarding by reading out a plurality of VOBUs instead of reproducing all TS packets. Rewinding can be realized by reading a plurality of VOBUs in the reverse order from the TS packet arrangement in TS-VOB.

  When the content of the extended control performed at the time of playback is playback of an unviewed section and the like, and is valid only within the playback path indicated by one playback path information, the extended attribute section setting unit 18 On the other hand, sections to be subjected to extended control are individually specified. In the individual designation, a section marker indicating where the designated section exists is created and incorporated in the PGC information. This section marker is created as follows. The extended attribute section setting unit 18 monitors what operation is performed by the user during playback control based on the playback path. When an operation is detected, the position on the digital stream where the detection is made is detected as a position where extended control is to be started, and a section marker that specifies an extended attribute section starting from the start position is set as PGC information. Create in. In creating the section marker, the extended attribute section setting unit 18 expresses the detection point using the PTS of the PES packet input to the decoder 16 when detecting the operation.

  The unviewed section detection unit 19 is a component implemented in the extended attribute section setting unit 18 and monitors what operation is performed by the user during playback control based on the playback path. When a stop operation is detected, the detected position on the digital stream is detected as a position where extension control should be started, and the start position is the start point, and the end of the playback path is the end point. A section marker that specifies the attribute section is created in the PGC information and incorporated in the PGC information. Since the unviewed section detection unit 19 detects an unviewed section, every time the user plays back the playback path and stops playback of the playback path, the unviewed section detection unit 19 sets the extended attribute section. Detection and creation of a section marker are repeated. The reason that the extended attribute section detected by the unviewed section detection unit 19 is set to the “unviewed” section, not the “unplayed” section, is to include sections other than the section reproduced by the user. When a user is recording while watching a broadcast program and stops watching in the middle of the recording, the position from the stop of the viewing to the end of the playback path is detected as an unviewed section. For example, when the user is recording while watching a broadcast program and stops watching in the middle of the recording, the unviewed section detection unit 19 detects an operation indicating that the viewing is stopped, such as a TV power off, The period from the operation detection time to the end of the TS-VOB may be detected as an unviewed section.

  The above are the components of the recording apparatus 100. These components are realized by a program and a computer that decodes and executes the program. FIG. 14 and FIG. 15 are flowcharts showing the procedure of this program. Hereinafter, the processing by the recording apparatus 100 will be described in more detail with reference to this flowchart. In order to simplify the following description, the extended attribute sections to be detected and set are limited to two sections, a CM section and an unviewed section.

  In the flowchart of FIG. 14, the loop process including Steps S <b> 1 to S <b> 3 is located in the highest layer of the process, and realizes distribution to various processes according to operations performed by the user. If a recording operation is performed, this operation is detected by the user interface unit 2, and the process proceeds from step S3 to step S4. In step S4, the recording control unit 15 detects and stores the audio attribute of the signal section of the analog broadcast signal as a default audio attribute, and resets a Flag described later to 0. In step S5, the recording control unit 15 instructs the encoder 7 to encode sequentially input signal sections, and then proceeds to a loop process including steps S6 and S7. This loop processing is to cause the CM section detection unit 13 to continuously detect the change in the audio attribute of the signal section during the period in which the input of the analog broadcast signal is continued. The requirement for termination of this loop processing is that step S7 is determined as Yes. Each time a change in the audio attribute in the signal section is detected, the processes in steps S6 to S7 are repeated through the processes in steps S8 to S14. In steps S8 to S14 routed here, the CM section detection unit 13 sets the change point as the start point or end point of the extended attribute section. After this setting, the process returns to the loop process of steps S6 to S7. That is, while the input of the analog broadcast signal is continued and the recording process is continued, each time the change point of the audio attribute is detected, the CM section detection unit 13 sets the start point and end point of the extended attribute section. Setting is done. In steps S9 and S12, the CM section detection unit 13 detects the PTS of the TS packet input to the encoder 7 when the audio attribute of the analog broadcast signal changes. The change point of the voice attribute is expressed by this PTS. Switching between the change point as the start point and the end point is performed according to the value of Flag. If Flag is 0, the CM section detection unit 13 sets the detected PTS as the start point of the extended attribute section having the CM attribute in Step S10, and then sets Flag to “1” in Step S11. If Flag is 1, the CM section detecting unit 13 sets PTS as the start point of the extended attribute section having the CM attribute in Step S13, and then resets Flag to “0” in Step S14.

  If the user performs an operation for instructing to stop the recording process, the process proceeds from step S7 to step S16. In step S16, the recording control unit 15 obtains VOB information including a section marker indicating the location of the extended attribute section having the CM attribute, and PGC information including playback path information indicating a default playback path in the TS-VOB. The VOB information and the PGC information are written in the DVD in step S17.

  The above is the processing at the time of recording. As a result, TS-VOB, VOB information, and PGC information are recorded on the DVD. If an operation for instructing the execution of reproduction is performed, the process proceeds from the loop process including steps S1 to S3 to steps S18 to S22 shown in FIG. The loop process consisting of step S18 to step S22 accepts various operations from the user when the reproduction path information is user-defined. If a playback operation is commanded (Yes in step S18), in step S18, the playback control unit 17 commands the drive device 3 to perform normal playback disk access. Thus, the TS-VOB playback video is displayed on the TV. When an operation to perform fast forward / rewind is performed (Yes in step S19), the recording control unit 15 causes the drive device 3 to perform disk access for realizing fast forward / rewind in step S24. By the above operation, cueing to a place to be set as a cell is realized at high speed. When an operation of designating a start point is performed (Yes in step S20), in step S25, the reproduction path information creation unit 14 detects the PTS of the TS packet output from the decoder 16, and uses this to start cell information. Let it be a point. On the other hand, when an operation for designating the end point is performed (Yes in step S21), the reproduction path information creating unit 14 detects the PTS of the TS packet output from the decoder 16 in step S26, and this is detected as cell information. The end point of. By repeating the above processing, a plurality of pieces of cell information as constituent elements of the reproduction path information are obtained on the resident memory 4. If the stop operation is performed, step S22 becomes Yes, and PGC information including reproduction path information formed by arranging the cell information created in step S15 is written to the DVD.

  A TS-VOB playback process via user-defined playback path information will be described. Since this reproduction path information is composed of a plurality of pieces of cell information, the cell information that is the target of steps S27 to S33 is designated by a variable j. Steps S27 to S30 constitute a loop process using the variable j as a control variable. The playback control unit 17 extracts the j-th cell information from the user-defined playback path information (step S28), and instructs the drive device 3 to read the VOBU from the start point to the end point of the cell information j ( In step S29), the decoder 16 decodes the VOBU read in this way, whereby video output is performed. This control variable is incremented in step S31. Further, the end requirement of this loop process is that it is determined in step S30 that this control variable reaches the total number of cells, or it is determined that the user has performed a playback end operation.

  When the stop operation is performed, the process proceeds from step S30 to step S32. In the cell j, the cell information located at the end of the reproduction path information after the TS packet last input to the decoder in the cell j. Section markers that specify up to the end point as an extended attribute section having an unviewed attribute are created, and the section marker created in step S33 is incorporated into the user-defined PGC information. Through the above processing, the extended attribute section having the unviewed attribute is set to the user-defined playback path.

  As described above, according to the present embodiment, the recording apparatus 100 having the configuration shown in the present embodiment is caused to generate the DVD shown in the first embodiment, so that the DVD shown in the first embodiment is promoted. can do. (Third Embodiment) In the third embodiment, when an extended attribute section having an unviewed attribute is specified by a section marker in PGC information, the location of the extended attribute section on the DVD is specified. Explain what to do. Since the playback time and size for each VOBU are described in association with each other in the access map in the VOB information, if the address and playback time described here are accumulated, the starting point of the extended attribute section, The VOBU including the end point can be specified. When the start point and end point of the extended attribute section exist in the same cell, it is only necessary to read from the VOBU including the start point thus identified to the VOBU including the end point. The problem here is when the start point and end point exist in different cells. FIG. 16A shows an example in which the start point and end point of the extended attribute section exist in two consecutive cells (cell # 1, cell # 2). In this case, for the preceding cell # 1, it is necessary to read from the start point rp1 of the extended attribute section to the end point rp2 of the cell # 1. For subsequent cell # 2, it is necessary to read the VOBU from the beginning rp3 of cell # 2 to the end point rp4 of the extended attribute section. In other words, when the extended attribute section includes the boundary between cells (end-start point pair), the VOBU from the start point of the extended attribute section to the end point of the cell, the start point of the subsequent cell, Read VOBU in two steps, like VOBU up to the end point. FIG. 16B shows an example of the case where the start point and end point of the extended attribute section exist in the end cells (cell # 1, cell # 5) in three or more consecutive cells. In this case, for cell # 1, the VOBU from the start point rp5 of the extended attribute section to the end point rp6 of cell # 1 must be read. For cell # 5, the VOBU from the start point rp7 of cell # 5 to the end point rp8 of the extended attribute section must be read. For cell # 2 to cell # 4 intervening in cell # 1 and cell # 5, all VOBUs located from the start point to the end point are read. If the reading as described above is performed on the cells # 1 to # 5, the VOBU including the extended attribute section is read.

As described above, according to the present embodiment, where the location of the extended attribute section is indicated by “indirect reference to indirect reference”, the start of where to play the TS-VOB The location can be easily identified.
(Fourth Embodiment) This embodiment discloses a process in the case of executing both the extended control based on the section marker set in the PGC information and the extended control based on the section marker set in the VOB information. FIG. 17 is a diagram illustrating an internal configuration of the regeneration control unit 17 according to the present embodiment, and the regeneration control unit 17 in the present embodiment includes an extended control execution unit 20 and an extended control arbitration unit 21.

  The extended control execution unit 20 performs extended control specific to the extended attribute section in the extended attribute section specified by the section marker in the VOB information and PGC information. The extended control arbitration unit 21 performs an arbitration process so as to avoid contention between extended controls that may occur in the overlapping portion between extended attribute sections. The arbitration by the extended control arbitration unit 21 is based on the extended attribute for the extended attribute section, and a priority order is set for the extended control for each extended attribute section, and the extended control with the lower priority order is not executed. Instead, the extended control having a high priority is exceptionally executed.

  FIG. 18 shows an example in which an overlapping portion with an extended attribute section (CM section) having a CM attribute exists inside an unviewed section. In this case, if the extended control arbitration unit 21 performs arbitration between the extended controls, the following occurs. When the extended attribute section that is a non-viewing section and the extended attribute section that is a CM section overlap, priority is set for extended control. If the priority of the extended control of “skip CM section” is higher than the extended control of “play back unviewed section”, this overlapped portion is replaced with the extended control of “play back unviewed section”. Then, as shown by the arrow cy1, the extended control of “skip CM section” is executed. On the other hand, in the non-viewing section, the non-overlapping portion with the CM section is subjected to extended control unique to the non-viewing section, that is, extended control of reproducing the unviewed section as it is, as indicated by arrows cy2 and cy3. The criteria for setting the priority order for each extended attribute section will be described. In this embodiment, the priority of the extended attribute section specified by the section marker in the VOB information is set higher than the priority of the extended attribute section specified by the section marker in the PGC information. The reason is as follows. The extended attribute section specified by the section marker in the PGC information is determined based on the user's operation, and is often the content only for the user himself / herself. On the other hand, the extended attribute section specified by the section marker in the VOB information often has a universal value for all users. As described above, the extended control having universal value is prioritized over the extended control limited to the user itself, thereby realizing the integration of the extended control.

  Of course, arbitration by the extended control arbitration unit 21 is necessary in the overlapping portion when the extended controls specific to the extended attribute section are mutually exclusive, and if the extended controls specific to the extended attribute section can coexist, the extended control Arbitration by the arbitration unit 21 is not necessary. For example, if extended control for an extended attribute section having a CM attribute is non-exclusive such as URL overlap display or logo mark thumbnail display, it may be performed in parallel with other extended control. The extended control arbitration unit 21 also determines whether or not the extended control can coexist and should be arbitrated by referring to the section marker classification information.

  The extended control arbitration unit 21 includes a program that realizes the flowcharts of FIGS. 19 and 20 and a processor that decodes and executes the program. 19 and 20 are flowcharts showing the processing procedure of the extended control arbitration unit 21 according to this embodiment. This flow chart is an exception to the process of skipping the CM section when the unviewed section overlaps with the CM section while performing an extended attribute section that reproduces the unviewed section in principle. Is what you do. In order to simplify the following description, the extended attribute sections to be detected and set are limited to two sections, a CM section and an unviewed section.

After identifying the cell i including the start point and the cell j including the end point of the extended attribute section having the unviewed attribute in step S40, step S41 is executed. Step S41 is a step of determining whether or not the cell i matches the cell j. The cell i matches the cell j means that an unviewed section is included in one cell.
If cell i and cell j match, playback is performed from the start point of the extended attribute section having the unviewed attribute in cell i to the end point of the extended attribute section having the unviewed attribute in step S43. That's fine. However, you must not forget the possibility that this unviewed section overlaps with the CM section. Step S42 is a determination step for determining whether or not there is an overlap. If there is a start point of the CM section, the reproduction of the unviewed section is exceptionally stopped before and after this. That is, playback is performed immediately after the start point of the extended attribute section having the unviewed attribute in step S44 to immediately before the extended attribute section having the CM attribute, and then immediately after the extended attribute section having the CM attribute in step S45. , Playback is performed up to the end point of the extended attribute section having the unviewed attribute. After the above reproduction control is finished, the processing of this flowchart is finished.

  On the other hand, if cell i does not match cell j, reproduction from the start point of the extended attribute section having unviewed attributes in cell i to the end point of cell i is performed in step S47, and cell i is performed in step S48. Let cell i be the next order cell. These step S47 and step S48 also have exception processing when the unviewed section overlaps with the CM section. Step S46 is a step of determining whether or not the exception processing is necessary, and determines whether or not the start point of the extended attribute section having the CM attribute is included in the cell i. If the start point of the CM section exists in cell i, this exception processing is executed. The exception process when step S46 determines that there is an overlap is mainly a process of reproducing before and after the CM section. In addition, there is a process of skipping a part corresponding to the CM section.

  That is, after reproducing from the start point of the extended attribute section having the unviewed attribute in step S49 to immediately before the CM attribute section, the end point of the extended attribute section having the CM attribute is determined in the next step S50. Determine if it is inside a cell. The reason why the cell including the end point of the CM section is specified in this way is that the cell including such an end point does not always match the cell i. If the cell including the end point of the extended attribute section having the CM attribute is defined as cell k, cell k is reset to cell i in step S51. By such setting again, cells from cell i to cell k are skipped. Finally, in step S52, the exception process is completed by reproducing from immediately after the extended attribute section having the CM attribute to the end point of the extended attribute section having the unviewed attribute.

  When the processes of step S48 and step S52 are completed, the process proceeds to a loop process including steps S53 to S56 in FIG. In this loop process, “i” of cell i plays the role of a control variable, and reproduction of cell i specified by i is performed in step S55. It is step S53 that defines the end requirement of this loop processing. In step S53, it is determined whether or not the end point of the extended attribute section having the CM attribute exists in the cell i. If it exists, the loop process is terminated and the process proceeds to step S57.

  Step S54 is a switching step for executing exception processing when the start point of the CM section exists in the cell i. At the time of executing this exception processing, the variable i is not incremented by one, but skips to the cell where the end point of the CM section exists. That is, playback is performed from the start point of the cell i to immediately before the extended attribute section having the CM attribute in step S61, and then the cell k including the end point of the extended attribute section having the CM attribute is specified in step S62. In step S63, cell k is updated to cell i. If many cells are skipped, the cell i may reach the end point of the unviewed section. Step S64 determines whether or not the end point of the unviewed section has been reached. Specifically, it is determined whether or not the cell i includes the end point of the extended attribute section having the unviewed attribute. The inclusion means that the requirement for termination of the loop processing described above has been satisfied, so that it is not necessary to wait until the requirement of step S53 is satisfied, and immediately after the extended attribute section having the CM attribute in step S66, The process ends after reproducing up to the end point of the extended attribute section having the unviewed attribute.

  If not included, the process returns to the loop process consisting of steps S53 to S56 after reproducing from the point immediately after the extended attribute section having the CM attribute to the end point of the cell i in step S65. By repeatedly executing this loop process, cells that do not include an end point in an unviewed section are sequentially reproduced. After completing the loop process consisting of step S53 to step S56, the process proceeds to step S57. Step S57 determines whether or not the start point of the extended attribute section having the CM attribute exists in the cell including the end point of the unviewed section. If the start point is not included, reproduction from the start point of the cell i to the end point of the extended attribute section having the unviewed attribute is performed in step S58.

  If the start point is included, playback is performed from the start point of the cell i to immediately after the extended attribute section having the CM attribute in step S59, and then immediately after the extended attribute section having the CM attribute in step S60. Plays up to the end of the extended attribute section with unviewed attributes. As described above, according to the present embodiment, a combination of extended control that respects each user's viewing preference and extended control that is universally required for a plurality of users is preferably realized. Can be increased.

  (Fifth Embodiment) This embodiment relates to an improvement to cope with subdivision and refinement of section markers. In the reproduction path, the standard of the extended attribute for determining the extended attribute is greatly influenced by the speculation of the manufacturer that manufactures the recording apparatus 100 and the product strategy, and it is difficult to say that it is uniform. In the future, it is thought that it will continue to be subdivided and refined. The present embodiment discloses a DVD capable of suitably managing such segmented and detailed section markers.

  FIG. 21 is a diagram showing an internal configuration of PGC information and VOB information according to the present embodiment. The section marker in the figure is different from the section marker shown in the first embodiment in that “partition information” is newly provided. The category information in the present embodiment indicates whether the section marker belongs to an effective category among a plurality of manufacturers or an effective category only for a single manufacturer. FIG. 22 is a diagram showing the setting contents of the category information. When the section marker belongs to the former category, “manufacturer common code” is set in the category information. When the section marker belongs to the latter category, “category-specific code” and “maker ID” for the manufacturer are set in the category information.

  The reason why the section marker is valid among multiple manufacturers is that there is the agreement of multiple manufacturers participating in the disc standard in the agreement of the standard of the extended attribute section corresponding to the section marker, and the disc standard This means that the recording apparatus 100 relating to the manufacture of the manufacturer participating in the item promises to perform common extended control on the extended attribute section indicated by the section marker.

  When it is effective between a single manufacturer, the standard of the extended attribute section corresponding to the section marker is based on the discretion of one manufacturer, and the other participating in the disc standard. This means that the recording apparatus 100 according to the manufacturer's manufacture does not need to perform extended control on the extended attribute section indicated by the section marker. In this case, it is necessary to indicate which manufacturer the recording marker 100 is valid for, and the manufacturer ID described above is used together.

  At the time of reproduction, the recording apparatus 100 refers to the manufacturer ID in the section marker included in the VOB information and the PGC information, and is a section marker that is valid for a single manufacturer, and the section in which this manufacturer ID matches its own manufacturer ID. Extended control based on this section marker is performed only for the marker. For a section marker that is effective in a single manufacturer and whose manufacturer ID is different from that of the recording apparatus 100, the extended control based on the section marker is not performed.

  Next, the internal configuration of the recording apparatus 100 according to the present embodiment will be described. FIG. 23 is a diagram illustrating an internal configuration of the recording apparatus 100 according to the present embodiment. The recording apparatus 100 in the present embodiment is different from the conventional recording apparatuses 100 in that a manufacturer ID holding unit 23 is newly added, and the recording control unit 15 and the reproduction control unit 17 are processing unique to the present embodiment. It is a point to do.

  The manufacturer ID holding unit 23 holds an identifier unique to the manufacturer that manufactured the manufacturer ID holding unit 23. When creating the section marker, the recording control unit 15 determines what type of extended attribute the extended attribute section specified by the section marker is, and indicates the determination result. Get segment information. It is determined whether the type of the extended attribute section is valid between multiple manufacturers or valid for a single manufacturer. If valid for a single manufacturer, the manufacturer ID held by the recording control unit 15 is classified Include in the information.

  The reproduction control unit 17 refers to a section marker that designates a location unique to the extended attribute section when executing the extended control. If the section marker classification information indicates “valid among multiple manufacturers”, the extended control unique to the extended attribute section specified by the section marker is executed. If the section marker classification information indicates “valid for a single manufacturer”, the manufacturer ID included in the section marker is taken out and compared with the manufacturer ID held by the manufacturer ID holding unit 23. If both manufacturer IDs match, extended control is executed for the extended attribute section specified by the section marker, and if not matched, it is not executed.

  As described above, according to the present embodiment, for a section marker that is valid for a single manufacturer, the manufacturer ID for that manufacturer is incorporated inside the section marker. By referring to this, at the time of reproduction, it is possible to perform a process of ignoring a section marker whose standard has been uniquely determined by another company. Thereby, it is possible to avoid a malfunction caused by trying to perform processing in accordance with a standard independently determined by another company.

  (Sixth Embodiment) The present invention relates to an improvement in recording for a long time on a DVD having a recording capacity of 27 GB or more on one side. Such a large-capacity DVD can record broadcast contents of 13 hours or more in the case of NTSC broadcasting. With the advent of such DVDs, half-day and one-day programs broadcast on a channel are recorded as one TS-VOB on a single DVD, which many users such as family members and multiple friends can record. It is considered that a multi-user usage method of sharing and appreciation will be established in the future. However, in this case, each user uses special playback such as fast-forwarding to find out where the program that he / she wants to watch exists in the TS-VOB corresponding to the broadcast content for half a day or one day. There is a need. Even though fast-forward processing on DVDs is performed at high speed, such a search operation is quite troublesome.

  Therefore, the extended attribute section detection unit 12 according to the present embodiment detects a portion corresponding to one program in the TS-VOB as an extended attribute section, and creates a section marker for designating this in the VOB information. FIG. 24 is a diagram illustrating an internal configuration of the extended attribute section detection unit 12 according to the sixth embodiment. As illustrated in FIG. 24, the extended attribute section detection unit 12 includes the program section change section in addition to the CM section detection unit 13. A detection unit 24 and a carousel section detection unit 25 are provided.

  The program sequence change section detecting unit 24 detects, as an extended attribute section, a section of the digital broadcast signal where the program layout information has changed to a specific one (referred to as a section in which the program layout information has changed). The detection of the extended attribute section by the program arrangement change section detecting unit 24 is based on PSI (Program Sequence Information: Program arrangement information in MPEG2 standard) and SI (Service Information: Program arrangement information defined in ARIB-STD B-10). Done. PSI is information that defines the arrangement of programs, and includes PAT and PMT. PMT is information that defines the stream structure of a broadcast program. That is, the PMT indicates which of a plurality of streams multiplexed in a multi-program type transport stream is a video stream and an audio stream constituting each broadcast program. FIG. 25 (a) is a diagram showing an example of the PMT, and the broadcast program corresponding to PMT # 1 in this figure is composed of a video stream having PID = 001 and an audio stream having PID = 002. Recognize. PAT indicates which PMT should be used to obtain each broadcast program transferred by a multi-program type transport stream. FIG. 25B shows an example of PAT. In this figure, the stream structure of broadcast program # 1 is indicated by PMT # 1, and the stream structure of broadcast program # 2 is indicated by PMT # 2. Refer to these PMT and PAT IDs in the broadcast channel being received by the tuner, where these IDs have become predetermined values, and where have they changed from the previous ones? To monitor. As a result, a section corresponding to one broadcast program in TS-VOB is recognized as an extended attribute section, a section marker for specifying this extended attribute section is created, and incorporated in PGC information. By designating a section corresponding to one broadcast program as an extended attribute section in TS-VOB, extended control such as cueing for this broadcast program and skipping of this broadcast program is suitably performed.

  The carousel section detection unit 25 detects a section in which an interactive broadcast program is transmitted from the digital broadcast signal as an extended attribute section. The detection of the extended attribute section by the carousel section detection unit 25 is realized by detecting a section transmitted by the data carousel method. The data carousel is a broadcasting system in which the same content is repeated in order to realize interactive broadcasting. The same content that is repeatedly broadcast includes a BML document described in BML (Broadcast Markup Languege) and mono-media data referred to by this BML document. Data repeatedly transmitted by the data carousel is divided into a plurality of parts, stored in a block called DDB (Dawnload Datablock), and transmitted together with unique control information called DII (DownloadinfoIndicatin). This DII is transmitted prior to the DBB, and since the data length of the DBB is described in this DII, the carousel section detecting unit 25 is based on this DII and has an extended attribute corresponding to the data carousel in the transport stream. A section is specified, and a section marker that specifies this extended attribute section is created and incorporated in the PGC information. By designating a data block to be transmitted in the data carousel method as an extended attribute section, extended control such as cueing for this data block and skipping of this data block is suitably performed.

  As described above, according to the present embodiment, the program sequence change section detecting unit 24 monitors whether or not the program sequence information has changed, and if a signal section having a specific program sequence attribute exists in the digital broadcast signal. In TS-VOB, a section marker that specifies an extended attribute section corresponding to this signal section is generated. As a result, in the TS-VOB, which has a length of time such as half a day or one day, it is possible to represent the general location of the program. Therefore, the location of programs included in the AV file can be narrowed down. If the location of the program becomes clear in this way, it is possible to suitably find the next time by generating a playback path including the section. Since it takes time to cue for viewing, even if multiple users want to view the recorded content recorded on the DVD, each user does not feel frustrated.

The program sequence change section detecting unit 24 detects the location of the program by monitoring the change in PSI / SI. However, since it is a pay broadcast, the section where the reproduction prohibited signal attribute is set, the copyright From the viewpoint of protection, a section marker having a recording restriction (only one copy) signal attribute may be detected as an extended attribute section, and a section marker indicating the extended attribute section may be created.
Also, in digital broadcast signals and analog broadcast signals, a signal section that includes an EPG indicating a specific genre, cast, or title is detected as an extended attribute section, and a section marker that specifies this is generated in the VOB information. Good. Then, at the time of reproduction, extended control of displaying these genres, casts, and titles may be executed.

  (Seventh Embodiment) In this embodiment, when a section in which program arrangement information is changed or a section transmitted by the data carousel method is detected as an extended attribute section, what kind of extended control is performed in these extended attribute sections. Disclose what should be done. The improvements in the present embodiment are made to the extended control execution unit 20 and the extended control arbitration unit 21. The extended control execution unit 20 and the extended control arbitration unit 21 will be described.

  If the extended attribute section designated by the section marker is a section in which the program arrangement information has changed, the extended control execution unit 20 skips the playback point to the beginning of the section in which the program arrangement information has changed. Take control. Some program sequence information must be read in advance by the playback device. In order to ensure that the program sequence information is read by the playback device in a section where the program sequence information is changing, Extended control is performed in which the playback point is skipped to the beginning of the section where the information has changed. If the extended attribute section specified by the section marker is data repeatedly transmitted by the data carousel method, the extended control execution unit 20 reproduces only one of the plurality of data transmitted by the data carousel method. Implement extended control. The above is the extended control performed by the extended control execution unit 20. Next, the extended control arbitration unit 21 will be described.

The extended control arbitration unit 21 occurs in the overlapping portion when the extended attribute section having the attribute of the program arrangement information and the data carousel method overlaps with the extended attribute section having the attribute of the unviewed attribute. Arbitration of competition between the extended controls to obtain. Hereinafter, how the extended control is performed in the arbitration by the extended control arbitration unit 21 will be described.
In FIG. 26A, since the section in which the program arrangement information is changed overlaps with the non-viewing section, there is a conflict between the extended control unique to the non-viewing section and the extended control unique to the section in which the program arrangement information has changed. An example of the occurrence is shown. In this example, the start point my1 of the unviewed section exists in the section where the program arrangement information has changed. The extended control unique to the unviewed section is to start playback from the beginning of the unviewed section. Therefore, playback must be started from the beginning of the unviewed section. However, the start point my1 of the unviewed section is inside the section where the program arrangement information has changed and overlaps with the section where the program arrangement information has changed. Will occur. Here, when the priority of “section-specific extended control in which program arrangement information has changed” is set higher than the priority of “unviewed section-specific extended control”, “unviewed section-specific extended control” Instead, “extended control unique to the section in which the program arrangement information has changed” is exceptionally executed. That is, as indicated by an arrow ty1 in FIG. 26A, the playback point is returned to the beginning of the section where the program sequence information has changed, and playback is performed from the head hc1 of the “section where the program sequence information has changed”.

  In FIG. 26B, since the section (carousel section) in which data is transmitted by the carousel method overlaps with the non-viewing section, the extension control unique to the non-viewing section and the extension control specific to the carousel section are performed. Here are some examples of contention. The extension control unique to the unviewed section is to reproduce the entire unviewed section as it is, and all the carousel sections included in the unviewed section are reproduced as it is. On the other hand, since the extended control unique to the carousel section is “reproducing one of a plurality of data blocks”, a conflict between the two occurs. When the priority of “carousel section-specific extended control” is higher than “unviewed section-specific extended control”, an exception is made in place of “unviewed section-specific extended control” in the overlapping part of the carousel section. Thus, “carousel section-specific extended control” is executed. That is, the entire unviewed section is not reproduced, but one of the plurality of data blocks is reproduced as indicated by the arrow sr1, and the rest is skipped as indicated by the arrow sr2.

As described above, according to the present embodiment, when the unviewed section set in the playback path for each user, the carousel section, and the program section information change section overlap, the carousel section and the program array information Since the extended control based on the change section is exceptionally performed, the process based on the control information transmitted by digital broadcasting can be executed faithfully.
(Eighth Embodiment) In the second embodiment, a digital broadcast signal selected by demodulating and selecting a broadcast wave, that is, a digital broadcast signal corresponding to a single program is converted into TS-VOB. The present embodiment relates to an improvement in the case of converting a digital broadcast signal obtained by demodulating a broadcast wave, which has not been selected, that is, a digital broadcast signal corresponding to a plurality of programs, into a TS-VOB. This TS-VOB is called a multi-program TS-VOB, and the recording apparatus 100 according to the present embodiment is configured to realize recording / reproduction of the multi-program TS-VOB. FIG. 27 is a diagram illustrating an internal configuration of the recording apparatus 100 according to the present embodiment. In the figure, some of the components of the recording apparatus 100 are omitted, and instead, the path of the multi-program TS-VOB is represented by dashed arrows zs1 and zs2. The multi-program TS-VOB read from the DVD 1 to the track buffer 5 as indicated by the arrow zs1 is output to the digital tuner 8, and is output from the digital tuner 8 to the recording control unit 15 as indicated by the arrow zs2. In order to transfer the multi-program TS-VOB through such a route, improvements specific to the map creation unit 11, the reproduction control unit 17, and the extended attribute section detection unit 12 according to the present embodiment are performed.

  The map creation unit 11 creates an access map without analyzing the TS header and application field of the TS packet. Specifically, the ATS of the TS packet output from the digital tuner 8 to the extraction unit 9 is read at predetermined time intervals, and entry information in which the ATS is associated with the time interval is created. By repeatedly creating this entry information, an access map is formed.

  The playback control unit 17 reads out the multi-program TS-VOB recorded on the DVD and outputs it to the digital tuner 8 as indicated by the dashed arrow zs1. When the digital tuner 8 selects a channel and a digital broadcast signal corresponding to one program is output from the digital tuner 8, the digital broadcast signal corresponding to this single program is decoded by the decoder 16 as indicated by a broken arrow zs2. Output to. By outputting a single program to the decoder 16, the broadcast program selected by the digital tuner 8 is displayed and output.

  When the user performs a channel selection operation on the digital tuner 8, the extended attribute section detection unit 12 acquires information indicating the channel selected by the user from the digital tuner 8. When the display output of the multi-program TS-VOB is performed on the television and the user then performs a playback stop operation, a section marker indicating the location of the extended attribute section that is an unviewed section is created as in the second embodiment. The channel number acquired from the user interface unit 2 is incorporated in the section marker. As described above, when writing / reading the multi-program TS-VOB, the TS header and application field of the TS packet are not analyzed, so the start point and end point of the extended attribute section are determined using the PTS. It cannot be expressed. Therefore, the extended attribute section detection unit 12 represents the start point and end point of the extended attribute section using ATS instead of PTS. In this case, it is desirable to express the start point and end point of the extended attribute section by using the ATS added to the plurality of TS packets, the one closest to the PTS. As such an ATS, there is an ATS added to a TS packet output to the decoder 16 when a reproduction operation is performed by the user. FIG. 28 is a diagram illustrating a section marker in which a channel number is incorporated by the extended attribute section detection unit 12.

Through the above processing, a section marker including a channel number is created. If the process of outputting the channel number included in this section marker to the digital tuner 8 at the next reproduction is performed, the user does not need to perform a channel selection operation on the digital tuner 8 at the next reproduction.
(Ninth embodiment) This embodiment relates to deletion editing for an extended attribute section specified by a section marker in PGC information. FIG. 29 is a diagram showing the internal configuration of the recording apparatus according to the present embodiment. It should be noted that the recording apparatus according to the present embodiment includes a deletion editing unit 26 as shown in the figure. The deletion editing unit 26 performs a process of deleting a part of the extended attribute section, cell, or VOB. Deletion by the deletion editing unit 26 is performed by updating the section marker, cell information, and VOB information. Further, the deletion editing unit performs a process of updating the cell information, the section marker, and the VOB information along with the deletion process. As described in the first embodiment, the extended attribute section specified by the section marker in the PGC information is expressed by “indirect reference to indirect reference”. Of course, when a cell or TS-VOB referenced by an extended attribute section is edited, the cell or TS-VOB remains in its original state, but only partially or entirely for the extended attribute section. May be deleted. Furthermore, since the extended attribute section expresses the range in which the extended control is effective not by “point” but by “section” having a time width, the deletion editing unit 26 uses the deletion attribute section to delete the extended attribute section. There are embodiments shown in case 1 to case 10 below.

  <Case 1> Case 1 is a case where an extended attribute section is included in one cell and the end of this extended attribute section is deleted. In case 1, the start / end information of the section marker is updated so that the start / end points of the extended attribute section are immediately before / after the end as the deleted portion. 30 (a) and 30 (b) are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 1 in comparison. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. In this figure, the symbol “<” symbolically indicates the start point of the extended attribute section, and the symbol “>” symbolically indicates the end point of the extended attribute section. When the end cy11 of the extended attribute section is to be deleted in FIG. 30A, the start point of the extended attribute section is deleted immediately after this deleted portion as shown by an arrow cy12 in FIG. Updated by the editing unit 26.

  <Case 2> Case 2 is a case where an extended attribute section is included in one cell and an intermediate part of the extended attribute section is deleted. In this case, the extended attribute section is divided. This division includes the following two processes by the deletion editing unit 26. The first process is a process of shortening the previous extended attribute section to a part preceding the middle part. For this reason, the end point information in the section marker is updated by the deletion editing unit 26 so as to make the end point of the extended attribute section immediately before the middle part. The second process is a process in which a section marker is newly created so that a part following the middle part is set as one extended attribute section. The start point information of a newly generated section marker designates a part immediately after the middle as a start point, and the end point information of a newly generated section marker designates the previous end point.

  30 (c) and 30 (d) are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 2. When trying to delete the middle part of the extended attribute section # 1 in FIG. 30 (c), the extended attribute section # 1 in FIG. 30 (c) includes the extended attribute section # 1 as shown in FIG. The extended editing section 26 is divided into two extended attribute sections called extended attribute section # 2. Updated by the deletion editing unit 26 so that the end point of the preceding extended attribute section # 1 is yz1 immediately before this deleted portion, and the start point of the subsequent extended attribute section # 2 is yz2 immediately after this deleted portion Is done.

  <Case 3> Case 3 is a case where an extended attribute section exists so as to straddle the boundary of two or more cells, and its end is deleted. This case3 is basically the same as case1. However, in case 3, the start / end points of the extended attribute section after partial deletion may belong to a different cell from the start / end points of the extended attribute section. Since the start point and end point may belong to different cells, in this case 3, the deletion editing unit 26 changes “cell in which the extended attribute section start point exists” and “cell in which the extended attribute section end point exists”. Thus, the deletion editing unit 26 updates the start cell ID and end cell ID of the section marker.

  31 (a) and 31 (b) are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 3 in comparison. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. When deleting the end part ty31 of the extended attribute section in FIG. 31A, as shown in FIG. 31B, the deletion edit is performed so that the start point of the extended attribute section is ty32 immediately after this end part. Updated by the unit 26.

  <Case 4> Case 4 is a case where an extended attribute section exists so as to straddle two or more cells, and the middle part of this extended attribute section is deleted. Case4 processing is basically the same as case2. However, in case 4, the end point of the extended attribute section after partial deletion and the start point of the extended attribute section newly obtained by partial deletion may belong to different cells. In other words, the deletion editing unit 26 changes the end cell ID so as to change the “cell in which the end point of the extended attribute section exists” to the cell located immediately before the middle part of the section marker in the extended attribute section.

  For the newly obtained section marker of the extended attribute section, the start cell ID is set so that the “cell where the extended attribute section start point exists” is changed to a cell located immediately after the middle part. Then, the deletion editing unit 26 sets the end cell ID for the newly obtained section marker so as to change to the cell in which the end point of the extended attribute section over “the cell where the extended attribute section end point exists” is placed. . 32 (a) and 32 (b) are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case4. 32A, when an intermediate part of the extended attribute section is to be deleted, the extended attribute section # 1 in FIG. 32A has two extended attributes as shown in FIG. Divided into sections # 1 and # 2. The deletion editing unit 26 updates the end point of the preceding extended attribute section immediately before the middle part and the start point of the subsequent extended attribute section immediately after the middle part.

The above is the partial deletion for the extended attribute section itself. Next, partial deletion of the extended attribute section accompanying editing of the playback path will be described.
<Case 5> Case 5 is a case where any of the cells constituting the playback path is deleted. If the cell to be deleted contains an extended attribute section (case 5-1), all the extended attribute sections are deleted. 33 (a) and 33 (b) are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 5-1 in comparison. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. As shown in FIG. 33 (a), when deleting a cell from cells # 1 to # 5, the extended attribute section included in this cell is deleted and edited together as shown in FIG. 33 (b). It is deleted by the unit 26.

  Conversely, when the extended attribute section includes a cell to be deleted (case 5-2), the deletion editing unit 26 considers that the cell to be deleted is an intermediate part to be deleted, and the deletion editing unit 26 performs the process of case 4 I do. The previous extended attribute section is shortened to a part preceding the deleted cell, and a part following the deleted cell is set as a new extended attribute section. At this time, since one or more cells in the middle are lost, the deletion editing unit 26 updates the end cell ID of the section marker so as to advance “the cell in which the extended attribute section end point exists”. 34 (a) and 34 (b) are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 5-2. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. In FIG. 34 (a), when cell # 2 is to be deleted from cells # 1 to # 5, the middle part of the extended attribute section corresponding to this cell is deleted. The extended attribute section # 1 in FIG. 34 (a) is divided into two extended attribute sections # 1 and # 2 in FIG. 34 (b). The end point of the preceding extended attribute section # 1 is immediately before the middle part indicated by the arrow ty51, and the starting point of the subsequent extended attribute section # 2 is immediately after the middle part indicated by the arrow ty52. It is updated by the deletion editing unit 26.

  When the start and end points of the extended attribute section are included in the deleted cell (case5-3), the “cell where the extended attribute section start point exists” and the “cell where the extended attribute section end point exists” are deleted cells The delete editing unit 26 updates the start cell ID and end cell ID of the section marker so as to be immediately before or after. Then, the deletion editing unit 26 updates the section marker end point information so that the picture data located immediately before the deletion cell is designated as the end point of the extended attribute section, and the picture data located immediately after the deletion cell is changed to the extended attribute. The section marker start point information is updated so that it is designated as the start point of the section. FIGS. 35A and 35B are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 5-3. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. In FIG. 35A, deleting the cell # 1 among the cells # 1 to # 5 is equivalent to deleting the end sn1 of the extended attribute section that overlaps with the cell # 1. As shown in FIG. 35 (b), the start point of the extended attribute section is immediately after the end portion sn1, so that the start point of the preceding extended attribute section is immediately after the deleted portion as indicated by the arrow sn2. In addition, it is updated by the deletion editing unit 26.

  <Case 6> Case 6 is a case where the end of any cell constituting the playback path is partially deleted. In this case, the deletion editing unit 26 updates the start point information and end point information of the cell information so as to indicate immediately before and after the end. When the end to be deleted includes the extended attribute section (6-1), the extended attribute section is entirely deleted by the deletion editing unit 26. 36 (a) and 36 (b) are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 6-1. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. In FIG. 36A, when deleting the tip portion sm1 of the cell # 2 among the cells # 1 to # 5, as shown in FIG. 36B, the extended attribute section # 1 included in the tip portion is The deletion editing unit 26 also deletes them.

  On the contrary, when the extended attribute section includes the end (6-2), the deletion editing unit 26 performs the same update as in case 5 (5-2), and the part preceding the end and the end Subsequent parts are set as separate extended attribute sections. FIGS. 37A and 37B are diagrams showing how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 6-2. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. When deleting the leading end portion of the cell # 2 among the cells # 1 to # 4 in FIG. 37A, the middle portion of the extended attribute section corresponding to this cell is deleted. The extended attribute section # 1 is divided into two extended attribute sections # 1 and # 2 in FIG. The end point of the preceding extended attribute section # 1 is immediately before this middle part as shown by the arrow ty61, and the starting point of the subsequent extended attribute section # 2 is immediately after this middle part as shown by the arrow ty62. It is updated by the deletion editing unit 26 so that

  When the start and end points of the extended attribute section are included at the end of the cell to be deleted (6-3), the same processing as case (5-3) is performed. FIGS. 38A and 38B are diagrams showing how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 6-3. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. In FIG. 38A, deleting the leading end portion of cell # 2 among cells # 1 to # 5 is equivalent to deleting the leading end portion of extended attribute section # 1 that overlaps this. Since the start point of the extended attribute section # 1 in FIG. 38B is immediately after this end portion, it is updated by the deletion editing unit 26 so that the start point of the preceding extended attribute section is immediately after this deleted portion. Is done.

  <Case 7> Case 7 is a case where the middle part of any cell constituting the playback path is deleted. In this case, the end point information of the cell information is updated by the deletion editing unit 26 so that the cell occupies the portion immediately before the middle portion. New cell information is added immediately after this cell information. The start point information of newly added cell information specifies the start point of the new cell immediately after the deletion part, and the end point information sets the end point of the previous cell to the end point of the new cell. It is specified. 39 (a) and 39 (b) are diagrams showing how the cell changes before and after the deletion of the middle part of the cell. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. In FIG. 39A, it is assumed that the middle part of the cell # 2 is deleted from the cells # 1 to # 5. As shown in FIG. 39 (b), after the deletion of the middle part of the cell # 2, the cell # 2 is shortened to the length just before the middle part. It can be seen that a new cell # 2 ′ is obtained immediately after the deleted portion.

  If the middle part to be deleted contains an extended attribute section (case7-1), the extended attribute section is all deleted. 40 (a) and 40 (b) are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 7-1. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. In FIG. 40A, it is assumed that the middle part of the cell # 2 is deleted from the cells # 1 to # 5. After executing deletion of the middle part of the cell # 2, the extended attribute section included in the middle part of the cell # 2 is also deleted by the deletion editing unit 26 as shown in FIG.

  On the other hand, when the extended attribute section includes the middle part to be deleted (case 7-2), the deletion editing unit 26 performs the same update as case 5-2, the part preceding the end part and the subsequent part to the end part. The parts to be processed are set as separate extended attribute sections. FIGS. 41A and 41B are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 7-2. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. When the middle part of the cell # 2 among the cells # 1 to # 5 is to be deleted, the middle part of the extended attribute section corresponding to this cell is also deleted by the deletion editing unit 26. The extended attribute section # 1 in FIG. 41 (a) is divided into two extended attribute sections # 1 and # 2 as shown in FIG. 41 (b). The deletion editing unit 26 updates the end point of the preceding extended attribute section immediately before the middle part and the start point of the subsequent extended attribute section immediately after the middle part.

  When the start point / end point of the extended attribute section is included in the middle part to be deleted (case 7-3), the process of case 5-3 is performed, and the deletion editing unit 26 reads “The start point of the extended attribute section is Update the section marker start cell ID and end cell ID so that “existing cell” and “cell where the end point of the extended attribute section exist” are newly obtained cells, and start and end points of the section marker. The deletion editing unit 26 updates the section marker start point information and end point information so that becomes the first picture data and the last picture data in the newly obtained cell.

  42 (a) and 42 (b) are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 7-3. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. As shown in FIG. 42 (a), when an intermediate part of cell # 2 among cells # 1 to # 5 is to be deleted, the end of extended attribute section # 1 included therein is deleted by the deletion editing unit 26 Will be. Since the starting point of the extended attribute section is immediately after this end as shown in FIG. 42B, the deletion editing unit 26 sets the starting point of the extended attribute section # 1 immediately after this deleted part. Updated.

  <Case 8> Case 8 is a case where any TS-VOB recorded in the AV file is deleted. Cells constituting the playback path are included in any TS-VOB. In other words, a cell that crosses the boundary of TS-VOB can never exist. This is in line with the fact that the extended attribute section can straddle the boundaries of multiple cells. This is because cell start and end points are defined by indirect reference via access map, so if cell start and end points cross the boundary of TS-VOB, multiple access maps are required. This is because the processing load increases. Therefore, the case where all TS-VOBs are deleted can be identified as the case where all the cells included in the TS-VOB are deleted. If any TS-VOB is deleted, all the cells included in the TS-VOB are deleted by the deletion editing unit 26. Therefore, it is sufficient to process case5. FIGS. 43A and 43B are diagrams showing the transition of the TS-VOB-cell-extended attribute section before and after the deletion of case8. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. As shown in FIG. 43 (a), when VOB # 1 is deleted from VOB # 1 to VOB # 4, the cell and the extended attribute section included therein are also shown in FIG. 43 (b). It can be seen that all have been deleted.

  <Case 9> Case 9 is a case where the end of any TS-VOB recorded in the AV file is partially deleted. When deleting the end portion, it is necessary to delete entry information corresponding to the end portion in the access map. As for the extended attribute section and the playback path, processing varies depending on whether or not a cell is included in the deleted part. If the deleted part contains a cell (9-1), it can be considered in the same way as the entire deletion of the cell, and the process of case 5 may be performed. 44 (a) and 44 (b) are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 9-1. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. Of VOB # 1 to VOB # 3, as shown in FIG. 44 (a), deleting the end of VOB # 1 means that cell # 1 included in this end and part or all of the cells are included in this cell. This is equivalent to deleting the included extended attribute section # 1. In FIG. 44B, it can be seen that the cell # 1 included in the tip portion of the TS-VOB and the extended attribute section # 1 in which the tip portion is included in this cell have been deleted by the deletion editing unit 26. If the edge to be deleted is the edge of the cell (case 9-2), it can be considered in the same way as case 6. FIGS. 45A and 45B are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 9-2. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. In FIG. 45A, deleting the end portion of VOB # 1 is equivalent to deleting the leading end portion of cell # 1 included in this end portion and the extended attribute section including a part in this cell. become. In FIG. 45 (b), the cell # 1 in which the end portion of the TS-VOB includes the tip portion and the extended attribute section # 1 in which the tip portion is included in this cell are deleted by the deletion editing unit 26. Recognize.

  <Case 10> Case 10 is a case where the middle part of the TS-VOB recorded in the AV file is deleted. In this case, TS-VOB is divided. The division here includes two processes. The first process is to reduce the previous TS-VOB to the preceding part that precedes the middle part. Is to add to the file. Along with the division of TS-VOB, VOB information is divided. In this division, the access map is divided along with the division of TS-VOB. Two VOB information having two access maps obtained by the division are generated and associated with the two TS-VOBs.

  If the middle part of TS-VOB is deleted, TS-VOB is divided by this deletion. At this time, the VOB information must also be divided. Details of this division of VOB information are described in US Pat. No. 6,148,140, so please refer to this publication. This document describes how to seamlessly play back two TS-VOBs obtained by division. It can be considered that the division of VOB in this embodiment is based on the technique described in this publication.

In addition, when deleting the tip or middle part of TS-VOB, the access map must be updated accordingly. Details of the access map update are described in International Publication No. WO99 / 14754, so please refer to this publication. In this publication, the access map is expressed as a “time map”, but is substantially synonymous with the access map.
46 (a) and 46 (b) are diagrams showing the transition of the TS-VOB-cell when the middle part of the TS-VOB is deleted. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. After execution of deletion of the middle part shown in FIG. 46A, the previous VOB # 1 is shortened by the deletion editing unit 26 to the length immediately before the middle part together with the cell. It can be seen that a new TS-VOB # 1 ′ is obtained immediately after the deleted portion as shown in FIG.

  If the middle part to be deleted contains a cell (case 10-1), the process of case 5 may be performed. 47 (a) and 47 (b) are diagrams showing how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 10-1. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. In FIG. 47 (a), deleting the middle part of VOB # 1 includes deleting cell # 1 included in the middle part and the end of the extended attribute section including part or all of this cell. Become equivalent. In FIG. 47 (b), the deletion editing unit 26 deletes the cell # 2 included in the middle part of the VOB # 1 and the extended attribute section in which the tip part is included in the cell # 2.

  If the middle part includes the end of the cell (case 10-2), the process of case 6 may be performed. FIGS. 48A and 48B are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 10-2. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. In FIG. 48 (a), deleting the middle part of TS-VOB means that the end part of cell # 1 included in this end part and the end part of the extended attribute section in which this cell is partly or entirely included are included. Equivalent to deleting. In FIG. 48B, the cell # 1 in which the tip portion is included in the end portion of the TS-VOB and the extended attribute section # 1 in which the tip portion is included in this cell are deleted by the deletion editing unit 26. Recognize. When the middle part to be deleted includes the middle part of the cell (case 10-3), the process of case 7 may be performed. FIGS. 49A and 49B are diagrams showing how the TS-VOB-cell-extended attribute section transitions before and after partial deletion in case 10-3. In this figure, “(a)” indicates before deletion, and “(b)” indicates after deletion. In FIG. 49A, deleting the middle part of VOB # 1 is equivalent to deleting the middle part of cell # 1 and extended attribute section # 1 including part or all of this middle part. . In FIG. 49 (b), the cell # 1 including the middle part at the end of the TS-VOB and the extended attribute section # 1 including the middle part are deleted, and each of the two cells # 1, # 1 ′ , It can be seen that it has been converted into two extended attribute sections # 1 and # 2.

  As described above, according to the present embodiment, not only partial deletion and partial deletion of the extended attribute section, but also partial deletion of the extended attribute section in accordance with all deletion / partial deletion of cells and TS-VOB. Can do. Therefore, the form of the extended attribute section can be freely changed according to various edits that will be performed in the hierarchical structure including the TS-VOB-access map-reproduction path shown in the first embodiment.

In the present embodiment, only the section marker in the PGC information has been described, but it goes without saying that the same deletion is performed for the section marker in the VOB information. In other words, the extended attribute section can be partially deleted along with all / partial deletion of TS-VOB.
(Tenth Embodiment) This embodiment is an improvement in the case where the recording apparatus 100 performs a moving edit that moves the cells constituting the reproduction path, and the extended attribute section is edited along with the moving editing. About. FIG. 50 is a diagram showing an internal configuration of the recording apparatus according to the present embodiment. It should be noted that the recording apparatus according to the present embodiment includes the movement editing unit 27 as shown in the figure. The movement editing unit 27 performs a process of moving the cells constituting the reproduction path. The movement by the movement editing unit 27 is performed by a process of updating the section marker and cell information.

  FIGS. 51A and 51B are diagrams schematically showing movement editing in which cell # 1 is moved immediately after cell # 3 among four cells # 1 to cell # 4 constituting the reproduction path. is there. The playback path was in the order of cell # 1, cell # 2, cell # 3, cell # 4 as shown in FIG. 51 (a), but by moving cell # 1 as indicated by arrow mv0, The order of the playback paths is cell # 2, cell # 3, cell # 1, and cell # 4. The reproduction path is an array of a plurality of cells, and the location of the extended attribute section is designated by indirect reference through any of the plurality of cells. Since the indirect reference by the section marker takes a form depending on the cell arrangement, it seems that the extended attribute section also changes if there is a change in the cell arrangement that is indirectly referenced. However, the section marker specifies only the start point and end point of the extended attribute section. Therefore, even if there is a change in the cell arrangement constituting the reproduction path, it is often only necessary to change the cell information arrangement.

  In other words, since it is defined in the form of specifying the start point and end point for any cell, even if any cell that contains the extended attribute section moves outside the extended attribute section, the extended Even if a cell outside the attribute section moves into the extended attribute section, a cell within the extended attribute section moves to somewhere in the same extended attribute section. However, care must be taken when moving cells that include end points and start points. That is the case where the end point comes before the start point. If the order of the end point-start point is reversed, the validity of the extended attribute section breaks down. Therefore, when moving the cell, it is determined whether or not the order of the start point and the end point is changed by the move. Prevent bankruptcy.

  A section marker update process for preventing the validity failure of the extended attribute section will be described. When the cell is moved and edited, it is determined whether the cell to be moved is a cell including a start point or a cell including an end point. If the cell to be moved is a cell including the start point, it is determined whether the cell including the start point comes after the cell including the end point. If it is later, the move editing unit 27 updates the start cell ID and start point information in the section marker so that the start point of the extended attribute section is immediately after the cell to be moved. By doing this, the leading end of the extended attribute section is shortened, but the validity failure of the extended attribute section due to the start point coming before the end point can be avoided.

  51 (c) and 51 (d) are diagrams illustrating a movement process of moving a cell including an extended attribute section start point. Of cell # 1 to cell # 4 in the figure, cell # 1 has an extended attribute section start point and cell # 3 has an extended attribute section end point. Assume that cell # 1 in which this starting point exists is to be moved between cell # 2 and cell # 3 as indicated by arrow my1. In this case, since the cell # 1 is positioned before the cell # 3 where the end point of the extended attribute section exists, the movement editing unit 27 does not update the section marker.

  FIGS. 52A and 52B are diagrams illustrating how the section marker update process is performed when a cell including the extended attribute section start point is moved. Assume that cell # 1 in which this starting point exists is to be moved between cell # 3 and cell # 4 as indicated by arrow my2. In this case, since the cell # 1 is located after the cell # 3 where the end point of the extended attribute section exists, the validity of the extended attribute section breaks down as it is. Therefore, the movement editing unit 27 updates the section marker so that the start point of the extended attribute section is the head of cell # 2 immediately after cell # 1.

  If the cell to be moved is a cell including the end point, it is determined whether the cell including the end point comes before the cell including the start point. If so, the move editing unit 27 updates the entry information and the end cell ID so that the end point of the extended attribute section is immediately before the cell to be moved. In this way, although the entry information of the extended attribute section is shortened, the validity failure of the extended attribute section due to the end point coming before the start point can be prevented.

  FIGS. 53A and 53B are diagrams illustrating a movement process of moving a cell including the end point of the extended attribute section. 53A, the start point of the extended attribute section exists in cell # 1, and the end point of the extended attribute section exists in cell # 3. Assume that the cell # 3 in which the end point exists is to be moved between the cell # 1 and the cell # 2 as indicated by an arrow my5 in FIG. 53 (b). In this case, since the cell # 3 is located after the cell # 1 where the start point of the extended attribute section exists, the movement editing unit 27 does not update the section marker.

  Assume that cell # 3 in which this end point exists is to be moved in front of cell # 1 as indicated by arrow my5. 54 (a) and 54 (b) are diagrams showing a section marker update process when a cell including the extended attribute section end point is moved. In this case, as shown in FIG. 54A, since the cell # 3 is positioned before the cell # 1 where the end point of the extended attribute section exists, the validity of the extended attribute section breaks down as it is. End up. Therefore, as shown in FIG. 54B, the movement editing unit 27 updates the section marker so that the end point of the extended attribute section is at the end of the cell # 3 immediately after the cell # 1.

As described above, according to the present embodiment, even when the cell is freely moved by the user, it is possible to prevent the legitimate failure of the extended attribute section. Although only the section marker in the PGC information has been described in the present embodiment, it goes without saying that the same processing is performed for the section marker in the VOB information.
Moreover, although the movement of the cell has been described in the present embodiment, it goes without saying that the extended attribute section itself may be moved without moving the cell.
(Eleventh Embodiment) This embodiment is an embodiment for realizing individual designation of extended attribute sections for one reproduction path and batch designation of extended attribute sections for a plurality of reproduction paths through user operations. Since individual designation and collective designation are realized through a user operation, in the present embodiment, the user interface unit 2 in the recording apparatus performs the following processing. First, the user interface unit 2 accepts from the user whether to execute individual designation of extended attribute sections or batch designation. When individual designation is accepted, a login operation is performed for a user who intends to specify an extended attribute section, and who is the user who intends to perform the operation is specified. When the identification of the user is completed, the reproduction path for the user is displayed, and the process proceeds to the individual designation process of the extended attribute section for the reproduction path. In this case, as shown in FIG. 9 or FIG. 10, a screen in which a reproduction path for each user is schematically displayed is displayed. For the playback path on this screen, the user accepts a setting operation for setting the start point of the extended attribute section on the playback path and the end point of the extended attribute section on the playback path. The At this time, the user interface unit 2 displays a cursor on the reproduction path, and moves the cursor left and right according to the user's operation on the remote control. Here, it is desirable to display what picture data exists at the cursor position in a thumbnail or the like. This is because the setting of the extended attribute section becomes more accurate. If the user performs an operation of determining the position of the cursor, the position is set as a start point or an end point. If a start point and an end point are set, a section marker having time information indicating the start point and the end point is incorporated into the PGC information in the resident memory 4.

  When performing the batch designation process of the extended attribute section, a screen that schematically shows the playback paths for a plurality of users is displayed as shown in FIG. For multiple playback paths on this screen, the user receives a setting operation for setting the start point of the extended attribute section on the playback path and the end position of the extended attribute section on the playback path. Attached. At this time, the user interface unit 2 displays a cursor on the reproduction path, and moves the cursor left and right on the plurality of reproduction paths in accordance with a user operation on the remote control. If the user performs an operation of determining the position of the cursor, the position is set as a start point or an end point. If a start point and an end point are set, a section marker having time information indicating the start point and the end point is incorporated into the VOB information in the resident memory 4.

  When the user interface unit 2 performs the above processing, the user can freely set the extended attribute section. In the case of editing as described in the ninth embodiment and the tenth embodiment, the user interface unit 2 may accept the designation of the part to be deleted. In this case, as shown in FIG. 30 to FIG. 49, a screen that schematically shows extended attribute sections, cells, and VOBs is displayed, and deletion is performed based on user operations on the extended attribute sections, cells, and VOBs on these screens. A part of the extended attribute section, a part of the cell, and a part of the VOB are specified.

Although it has been described based on the above embodiment, it is merely presented as an example of a system that can be expected to have the best effect in the present situation. The present invention can be modified and implemented without departing from the gist thereof. As typical modified embodiments, there are the following (A), (B), (C),...
(A) Many of the features of the recording apparatus 100 described in the first to eighth embodiments are realized by improving computer-readable programs as shown in the flowcharts of FIGS. 14, 15, 19, and 20. Is done. Therefore, the program as the feature portion may be executed independently of these apparatuses. When the program is recorded on a computer-readable recording medium, only the program may be implemented in such a manner that the recording medium is transferred or lent. When the program is distributed on the network, the program may be executed in such a manner that the program is transmitted on the network. In addition, even in the case of features other than these, the features that are essential to be implemented as an improvement of the program may be recorded on a recording medium or transmitted to a network. Good.

  (B) In the first to tenth embodiments, description has been made by taking a DVD capable of recording moving image data in accordance with the DVD-VIDEO RECORDING standard such as DVD-RAM as an example of a recording medium. Any recording medium may be used as long as the physical structure can be recorded. For example, a phase change optical disk such as DVD-RW, PD, DVD + RW, and CD-RW other than DVD-RAM may be used. Also, write-once optical disks (i) such as CD-R and DVD-R, magneto-optical storage optical disks (ii) such as MO (Magneto-optical disk), MD-DAT (Mini disc-Data), iD format, ORB, Jaz, SparQ, SyJet, EZFley, removable hard disk drive such as microdrive (iii), flexible disk, magnetic disk such as SuperDisk, Zip, Clik !, SD memory card, compact flash (registered trademark) card It may be a flash memory card (v) such as a smart media, a memory stick, a multimedia card, or a PCM-CIA card.

  (C) The recording apparatus 100 may be implemented as a home stationary DVD recorder such as Panasonic DMR-E30 or a camcorder. The recording device 100 may be a personal computer in which a digital video editing program such as “MotionDV STUDIO” or “DVD MovieAlbum” is installed and connected to the drive device 3 via an interface compliant with SCSI, IDE, or IEEE1394.

(D) In this embodiment, the video stream and the audio stream are multiplexed in the TS-VOB, but a sub-picture stream obtained by run-length compression of subtitle characters and other control information may be multiplexed.
(E) In the present embodiment, the display period of picture data is described in video frames. However, when 3: 2 pull-down used for compressing a video of 24 frames / second like a film material is used, The relationship may be 1.5 frames = 1 picture instead of 1 frame = 1 picture.

  (F) In all the embodiments, the optical disk records moving image data in a format conforming to the DVD-VIDEO RECORDING standard, but may be recorded according to other standards.

Since the present invention is suitable for recording moving image data on the premise that the reproducing device performs extended control, the present invention is used as a recording medium, recording device, and reproducing device for recording moving image data all over the world. Can be used by consumers. Therefore, there is a high possibility that the recording medium, the recording apparatus, and the reproducing apparatus are used by the consumer equipment industry.

1 is a diagram illustrating a DVD 1 and a recording device 100 according to a first embodiment. FIG. 3 is a diagram showing a structure (file structure) of a DVD 1 on the file system layer drawn out by a dashed arrow hk1. It is the figure which detailed the structure of TS-VOB recorded in AV file in steps. It is a figure which shows how a PES packet is stored in a TS packet. It is a figure which shows the internal structure of a management file. It is the figure which modeled the indirect reference by reproduction path information. It is a figure which shows the data structure on DVD which implement | achieves multiuser correspondence. It is a figure which shows the section marker provided in the inside of VOB information and the inside of PGC information. FIG. 4 is a diagram showing an extended attribute section provided in a playback path for user A. FIG. 10 is a diagram showing a section marker that designates an extended attribute section having an unviewed attribute for the playback path for user B. It is a figure which shows the VOB information in which the section marker was incorporated in the inside. FIG. 5 is a diagram showing what kind of extended control is performed on a playback path for user A and a playback path for user B. It is a figure which shows the internal structure of the recording device 100 which concerns on 2nd Embodiment. 3 is a flowchart showing a procedure of a program that constitutes a functional feature of the recording apparatus 100. 3 is a flowchart showing a procedure of a program that constitutes a functional feature of the recording apparatus 100. (A) An example in which the start point and end point of the extended attribute section exist in two consecutive cells (cell # 1, cell # 2).

(B) An example in which the start point and end point of the extended attribute section exist in end cells (cell # 1, cell # 5) in three or more consecutive cells.
It is a figure which shows the internal structure of the reproduction | regeneration control part 17 which concerns on 4th Embodiment. It is a figure which shows the example where the duplication part with the extended attribute area (CM area) with CM attribute exists in the unviewed area. It is a flowchart which shows the process sequence of the extended control arbitration part 21 which concerns on 4th Embodiment. It is a flowchart which shows the process sequence of the extended control arbitration part 21 which concerns on 4th Embodiment. It is a figure which shows the internal structure of PGC information and VOB information which concern on 4th Embodiment. It is a figure which shows the setting content of division information. It is a figure which shows the internal structure of the recording device 100 which concerns on 5th Embodiment. It is a figure which shows the internal structure of the extended attribute area detection part 12 which concerns on 6th Embodiment. (A) It is a figure which shows an example of PMT.

(B) It is a figure which shows an example of PAT.
(A) Since the section in which the program sequence information has changed overlaps with the unviewed section, there is a conflict between extended control unique to the unviewed section and extended control specific to the section in which the program sequence information has changed. It is a figure which shows the example.

(B) Since the section (carousel section) in which data is transmitted by the carousel method overlaps with the unviewed section, contention between the extended control unique to the unviewed section and the extended control unique to the carousel section occurs. FIG.
It is a figure which shows the internal structure of the recording device 100 which concerns on 8th Embodiment. It is a figure which shows the section marker by which the channel number was integrated by the extended attribute area detection part 12. FIG. It is a figure which shows the internal structure of the recording device 100 concerning 10th Embodiment. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case1.

(C), (d) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case2.
(A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 3. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case4. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 5-1 in comparison. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 5-2. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 5. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 6-1. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 6-2. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 6-3. (A), (b) It is a figure which shows how it changes before and after deletion of the middle part of the cell in case7. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 7-1. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 7-2. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 7-3. (A), (b) It is a figure which shows the transition of TS-VOB-cell-extended attribute section before and after deletion of case8. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 9-1. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 9-2. (A), (b) It is a figure which shows the transition of the TS-VOB-cell when the middle part of TS-VOB in csse10 is deleted. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 10-1. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 10-2. (A), (b) It is a figure which shows how the TS-VOB-cell-extended attribute section changes before and after partial deletion in case 10-3. It is a figure which shows the internal structure of the recording device 100 concerning 10th Embodiment. (A), (b) It is a figure which shows typically the movement edit of moving cell # 1 immediately after cell # 3 among four cell # 1-cell # 4 which comprises a reproduction | regeneration path | route.

(C), (d) It is a figure which shows the movement process of moving the cell containing an extended attribute area start point.
(A), (b) It is a figure which shows how the update process of a section marker is performed when moving the cell containing an extended attribute area start point. (A), (b) It is a figure which shows the movement process of moving the cell containing an extended attribute area end point. (A), (b) It is a figure which shows the update process of a section marker in the case of moving the cell containing an extended attribute area end point.

Explanation of symbols

1 DVD
2 User interface section 3 Drive device 4 Resident memory 5 Track buffer 6 Analog tuner 7 Encoder 8 Digital tuner 9 Extraction section 10 Analysis section 11 Map creation section 12 Extended attribute section detection section 13 CM section detection section 14 Playback path information creation section 15 Recording Control section 16 Decoder 17 Playback control section 18 Extended attribute section setting section 19 Unviewed section detection section 20 Extended control execution section 21 Extended control arbitration section 23 Manufacturer ID holding section 24 Program sequence change section detection section 25 Carousel section detection section 26 Delete editing Unit 27 Moving editing unit 100 Recording device 101 Terrestrial antenna 102 Parabona antenna

Claims (16)

A digital stream, a recording apparatus for recording management information and a recording medium for managing reproduction of the digital stream,
The management information includes reproduction path information indicating a reproduction path of the digital stream, and an access map for managing an address of the digital stream,
The playback path information includes a plurality of playback paths for the digital stream,
If the content of the extended control performed at the time of reproduction is valid for a specific reproduction path, the first type of marker information that specifies the section for which the extended control should be performed corresponding to the specific reproduction path is generated,
When the contents of the extended control performed at the time of reproduction are valid for a plurality of reproduction paths, a second section for designating a section to be subjected to the extended control is associated with the access map of the digital stream corresponding to the plurality of reproduction paths. A designation means for generating type marker information ;
For the first type of marker information, the first type of marker information and the playback path information are included in a playback path specific information unit and then written to a recording medium. For the second type of marker information, Writing means that writes the second type marker information and the access map into a recording medium after being included in an information unit unique to the digital stream ;
The section to be subjected to the extended control and designated using the first type marker information is an unviewed section on the specific reproduction path,
The content of the extended control that is effective on the specific playback path is a recording device that is control for starting playback of a digital stream from an unviewed section . The section to be subjected to the extended control, which is designated by using the second type marker information, is one section on the digital stream on which the playback position should be skipped,
The contents of the extended control that is effective in the plurality of playback paths are as follows:
The recording apparatus according to claim 1, wherein the recording apparatus is a control for starting reproduction immediately after the one section to be skipped . The digital stream is obtained based on an analog broadcast signal,
The one section on the digital stream to which the playback position should be skipped is one section on the digital stream corresponding to the signal section transmitted with an audio attribute different from the preceding and following sections in the analog broadcast signal,
The contents of the extended control that is effective in the plurality of playback paths are as follows:
The recording apparatus according to claim 1, wherein the recording apparatus is a control for skipping a section having a different audio attribute as a CM section and starting reproduction immediately after the one section to be skipped .
The digital stream is obtained based on a digital broadcast signal,
The section to be subjected to extended control, which is specified using the second type marker information,
One section (1) on the digital stream corresponding to the signal section transmitted by the data carousel method in the digital broadcast signal,
One of the sections (2) on the digital stream corresponding to the signal section transmitted with a program arrangement attribute different from the preceding and following sections in the digital broadcast signal
The contents of the extended control that is effective in the plurality of playback paths are as follows:
The recording apparatus according to claim 1, wherein the recording apparatus is a control for starting reproduction from a section designated by using the second type marker information . A recording medium storing a digital stream and management information for managing reproduction of the digital stream,
The management information includes reproduction path information indicating a reproduction path of the digital stream, an access map for managing an address of the digital stream, and marker information for designating a section to be subjected to extended control,
The playback path information includes a plurality of playback paths for the digital stream,
The marker information includes
When the content of the extended control performed at the time of reproduction is valid for a specific reproduction path, first type marker information that designates a section to be subjected to the extended control in association with the specific reproduction path;
When the contents of the extended control performed at the time of reproduction are valid for a plurality of reproduction paths, the second type of designating the section to be subjected to the extended control in correspondence with the access map of the digital stream corresponding to the plurality of reproduction paths Marker information,
The first type of marker information is recorded together with the reproduction path information corresponding to a specific reproduction path in a state of being included in an information unit specific to the reproduction path. For the second type of marker information, the access map And recorded in a state of being included in an information unit unique to the digital stream,
The section to be subjected to the extended control and designated using the first type marker information is an unviewed section on the specific reproduction path,
The content of the extended control that is effective on the specific playback path is a recording medium that is control for starting playback of a digital stream from an unviewed section . The section to be subjected to the extended control, which is designated by using the second type marker information, is one section on the digital stream on which the playback position should be skipped,
The contents of the extended control that is effective in the plurality of playback paths are as follows:
The recording medium according to claim 5, wherein the recording medium is a control for starting reproduction immediately after the one section to be skipped .
The digital stream is obtained based on an analog broadcast signal,
The one section on the digital stream to which the playback position should be skipped is one section on the digital stream corresponding to the signal section transmitted with an audio attribute different from the preceding and following sections in the analog broadcast signal,
The contents of the extended control that is effective in the plurality of playback paths are as follows:
6. The recording medium according to claim 5, wherein the recording medium is a control for skipping a section having a different audio attribute as a CM section and starting reproduction immediately after the one section to be skipped .
The digital stream is obtained based on a digital broadcast signal,
The section to be subjected to the extended control, which is designated using the second type marker information,
One section (1) on the digital stream corresponding to the signal section transmitted by the data carousel method in the digital broadcast signal,
One of the sections (2) on the digital stream corresponding to the signal section transmitted with a program arrangement attribute different from the preceding and following sections in the digital broadcast signal
The contents of the extended control that is effective in the plurality of playback paths are as follows:
The recording medium according to claim 5, wherein the recording medium is control for starting reproduction from one section designated by using the second type marker information . A playback device for a recording medium according to claim 5,
In the recording medium, the first type of marker information recorded in the same information unit as the reproduction path information is read from the information unit, and at the same time, the second type of marker information recorded in the same information unit as the access map. Reading means for reading from the information unit ;
Among the playback paths indicated by the playback path information, in the section specified by the first type marker information, the extension control specific to the playback path is performed,
In the section that overlaps with the section specified by the second type marker information, extended control unique to the digital stream is performed instead of or in addition to the extended control. And a playback device. The section to be subjected to the extended control, which is designated by using the second type marker information, is one section on the digital stream on which the playback position should be skipped,
The contents of the extended control that is effective in the plurality of playback paths are as follows:
The playback device according to claim 9, wherein the playback device is configured to start playback immediately after the one section to be skipped . The digital stream is obtained based on a digital broadcast signal or an analog broadcast signal,
The section to be subjected to extended control, which is designated using the second type marker information,
One section on the digital stream corresponding to the signal section transmitted with an audio attribute different from the preceding and following sections in the analog broadcast signal,
One section on the digital stream corresponding to the signal section transmitted by the data carousel method in the digital broadcast signal,
The playback device according to claim 9, wherein the playback device is any one section on the digital stream corresponding to the signal section transmitted with a program arrangement attribute different from the preceding and following sections in the digital broadcast signal. The control means specifies the location by the first type marker information in a portion where the section specified by the first type marker information and the section specified by the second type marker information overlap. The playback apparatus according to claim 9, wherein control is performed to shift the playback position immediately before or immediately after a section in which the location is specified by the second type marker information. A digital stream, a program for causing the recording procedure on a computer for recording the management information and a recording medium for managing reproduction of the digital stream,
The management information includes reproduction path information indicating a reproduction path of the digital stream, and an access map for managing an address of the digital stream,
The playback path information includes a plurality of playback paths for the digital stream,
If the content of the extended control performed at the time of reproduction is valid for a specific reproduction path, the first type of marker information that specifies the section for which the extended control should be performed corresponding to the specific reproduction path is generated,
When the content of the extended control performed at the time of reproduction is valid for a plurality of reproduction paths, a second section for designating a section to be subjected to the extended control is associated with the access map of the digital stream corresponding to the plurality of reproduction paths. A specified step to generate type marker information ;
For the first type of marker information, the first type of marker information and the playback path information are included in a playback path specific information unit and then written to a recording medium. For the second type of marker information, Causing the computer to execute a writing step in which the second type marker information and the access map are included in an information unit unique to the digital stream and then written to the recording medium.
The section to be subjected to the extended control and designated using the first type marker information is an unviewed section on the specific reproduction path,
The content of the extended control that is effective on the specific playback path is a program for starting playback of a digital stream from an unviewed section . A program for causing a computer to perform a reproduction procedure for the recording medium according to claim 5,
In the recording medium, the first type of marker information recorded in the same information unit as the reproduction path information is read from the information unit, and at the same time, the second type of marker information recorded in the same information unit as the access map. Reading from the information unit;
Among the playback paths indicated by the playback path information, in the section specified by the first type marker information, the extension control specific to the playback path is performed,
In the section that overlaps with the section specified by the second type marker information, extended control unique to the digital stream is performed instead of or in addition to the extended control. Control step and
A program that causes a computer to execute . A digital stream, a recording method for recording management information for managing the reproduction of the digital stream on the recording medium,
The management information includes reproduction path information indicating a reproduction path of the digital stream, and an access map for managing an address of the digital stream,
The playback path information includes a plurality of playback paths for the digital stream,
If the content of the extended control performed at the time of reproduction is valid for a specific reproduction path, the first type of marker information that specifies the section for which the extended control should be performed corresponding to the specific reproduction path is generated,
When the content of the extended control performed at the time of reproduction is valid for a plurality of reproduction paths, a second section for designating a section to be subjected to the extended control is associated with the access map of the digital stream corresponding to the plurality of reproduction paths. A specified step to generate type marker information ;
For the first type of marker information, the first type of marker information and the playback path information are included in a playback path specific information unit and then written to a recording medium. For the second type of marker information, A writing step of writing the second type marker information and the access map into the recording medium after including the information in the information unit unique to the digital stream ,
The section to be subjected to the extended control and designated using the first type marker information is an unviewed section on the specific reproduction path,
The content of the extended control that is effective on the specific playback path is a recording method that is control for starting playback of a digital stream from an unviewed section . A reproduction method for reproducing the recording medium according to claim 5 ,
In the recording medium, the first type of marker information recorded in the same information unit as the reproduction path information is read from the information unit, and at the same time, the second type of marker information recorded in the same information unit as the access map. Reading from the information unit;
Among the playback paths indicated by the playback path information, in the section specified by the first type marker information, the extension control specific to the playback path is performed,
In the section that overlaps with the section specified by the second type marker information, extended control unique to the digital stream is performed instead of or in addition to the extended control. A playback method comprising: a control step.

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