JP2013175854A - Video recording device and video reproducing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to concretely understand a program content at an apparatus on the opposite communication party and to easily determine whether or not a recorded program is necessary at the apparatus on the opposite communication party.SOLUTION: A data analyzer 16 in a video recording unit 14 extracts data of portions regarded as being important from the content data of a recorded program, according to a predetermined importance degree extraction condition. A notification content generator 20 acquires from a data receiver 12 information related to the content data from a predetermined information provision service, and using the information, extracts the data of the portions regarded as being important from the recorded content data. The notification content generator 20 integrates the portions regarded as being important using a predetermined weight, determines a portion regarded as being important to be notified to a user, and transmits the image data of the portion by including it in summary information to a device used by the user.

Description

  The present invention relates to a recording / reproducing apparatus and a recording / reproducing system, and more particularly, to a recording / reproducing apparatus and a recording / reproducing system that can generate summary information of a received broadcast program and transmit the summary information to a predetermined communication partner device. .

  Recording / playback apparatuses for recording broadcast programs and the like have been widely used at low prices and large capacities in response to improvements in video compression technology and the increase in capacity and price of storage media (HDD). In addition, the broadcast signal is digitized, and the broadcast signal includes a lot of information other than video such as program information (EPG (Electronic Program Guide) data). The program information includes, for example, channel name, program name, broadcast start date / time, broadcast end date / time, broadcast time, program content, program genre, recording permission / inhibition information, viewer age restriction information, search keyword information, program character name Etc. are included.

Recent recording / playback devices have a general function of automatically extracting programs based on user preferences and input keywords from program information that can be acquired from digital broadcast signals, and automatically recording content data of the extracted programs. ing.
Under such circumstances, the content data recorded and retained by the general user in the recording / playback apparatus is increasing dramatically. In the recording / playback apparatus, although the storage capacity for recording is increased, the content data of the program is automatically saved, so that the storage capacity tends to be full.

  Therefore, many of the technologies related to double-speed playback and digest playback for viewing recorded programs earlier than real time, or technologies for avoiding recording failure due to lack of capacity not predicted by the user. The invention has been made.

For example, in Patent Document 1, it is possible to increase the remaining recordable capacity by erasing, moving, and changing the image quality of the recorded program title in the recording / playback apparatus by remote operation, thereby making it possible to reliably execute the recording reservation. An invention relating to an intended recording / playback apparatus is disclosed.
The recording / playback apparatus includes a communication unit that communicates with an external device via a network, a storage unit that stores program information with video, and program information related to storage in the storage unit via the communication unit. Providing means for transmitting to an external device, and conversion means for converting the compression rate of the program stored in the storage means into a different compression rate in accordance with a program compression rate conversion request from the external device via the communication means doing. In addition, this recording / playback device assumes that the recorded content is locked by another user such as a family member, and inquires of the owner of the content using a communication means such as e-mail. Judgment is possible.

JP 2005-184451 A JP 2009-4994 A

  As described above, the recording / playback apparatus of Patent Document 1 allows the user to perform an operation from the outside, thereby restricting the place where the operation such as erasing the recorded content data that is increased by the automatic recording function is performed. It is possible from remote without doing. In addition, as described above, assuming that the recorded content data is locked by another user such as a family member, it is possible to make an inquiry to the owner of the content data to determine deletion of the data. .

  With these measures, the recorded content data itself can be manipulated. For example, the user can determine that the content data is unnecessary, and the determination material for deleting the content data is the content of the broadcast program. There is only the program information attached to the data. Therefore, it is difficult for the user to immediately determine whether or not to delete the content data. In addition, when a long recording is newly performed, it may be necessary to delete a plurality of content data, and it may be difficult for the user to determine whether to delete.

Therefore, even if there is a means for erasing the content data from a remote location, the user cannot easily erase the content data, or the content data of the program that the user wants to watch is accidentally erased. Problem arises.
For example, after erasing content data deemed unnecessary from program information in order to free up storage capacity for recording, the user later knows the details of the erased content data and should not view it. In some cases, it may be determined that the content data is desired. In such a case, important recorded content data is erased.

  As described above, conventionally, it is required to easily determine whether the recorded content data is unnecessary and whether it can be erased according to the remaining storage capacity.

  The present invention has been made in view of the above circumstances, and generates summary information indicating the contents of a recorded program and transmits the summary information to a predetermined communication partner device. Provide a recording / playback apparatus and a recording / playback system that can specifically understand the contents of a program, and can easily execute the necessity / unnecessity of a recorded program on a communication partner device. With the goal.

  In order to solve the above problems, the first technical means of the present invention summarizes the content data based on a predetermined condition from the recording means for recording the content data of the broadcast program and the content data recorded by the recording means. Summary information generation means for generating the summary information, and transmission / reception means for transmitting the summary information generated by the summary information generation means to a device of a predetermined communication partner and receiving operation information from the device of the communication partner And control means for erasing the content data recorded in the recording means in accordance with operation information transmitted from the device of the communication partner.

  The second technical means has information acquisition means for acquiring information relating to the content data recorded by the recording means using the information providing service provided by the computer on the communication network in the first technical means, The summary information generated by the summary information generation unit is generated based on information on content data acquired by the information acquisition unit.

  According to a third technical means, in the second technical means, the summary information generating means extracts, from the content data recorded by the recording means, data of a portion regarded as important according to a predetermined importance extraction condition, and , Based on the information on the content data acquired by the information providing service, the data of the portion regarded as important is extracted from the content data, and the data extracted from the importance extraction condition and the data acquired from the information providing service The extracted data is integrated using a predetermined weight, a portion regarded as important to be notified to the user is determined, and image data included in the determined important portion is included in the summary information and generated. It is characterized by that.

  According to a fourth technical means, in the first or second technical means, the summary information generated by the summary information generating means includes image data of an important part extracted from the content data and a program acquired from the content data. It includes information and information related to data acquired from the information providing service.

  According to a fifth technical means, in the technical means according to any one of the first to fourth aspects, when the summary information generating unit newly generates summary information of the content data recorded by the recording means, the recording means When the remaining storage capacity of the storage means for recording the content data is less than or equal to a predetermined value, the summary information of the content data recorded in the recording means and the summary information already generated is sent to the communication partner device. And the control means deletes the content data recorded in the recording means in accordance with the operation information transmitted from the communication partner device.

  A sixth technical means is the technical means according to any one of the first to fourth aspects, wherein the control means determines the importance of the content data recorded by the recording means in response to a user operation on the device that has transmitted the summary information. The content data is erased from the storage means that recorded the content data according to the degree of importance.

  A seventh technical means is any one of the first to third technical means, wherein the summary information generating means changes the information content of the summary information in accordance with a timing of transmitting the summary information. It is a thing.

  According to an eighth technical means, in the seventh technical means, the timing at which the summary information is transmitted is the storage capacity of the storage means for recording the content data when the recording means records new content data. Or when the request information is requested by a user operation on the communication partner device by a user operation.

  A ninth technical means is the technical means according to any one of the first to third aspects, wherein the summary information generating means acquires predetermined performance information of a communication partner device that transmits the reservation information, and According to performance information, the information content of the summary information is changed.

  A tenth technical means according to any one of the first to ninth technical means, wherein the control means determines past communication history information or previously registered communication when determining the device of the communication partner. Refer to the registered information of the other party, determine the device to send the summary information, and if there are multiple candidates for the other party, you should communicate with that candidate Requesting acquisition of predetermined information indicating that the device is a device, and determining a device of a communication partner to which the summary information is transmitted based on a result of acquiring the requested predetermined information, the device to be communicated Predetermined information indicating that the device is to be communicated by a user operation, information indicating that the device is communicable, and information indicating whether or not the device is moving Any one or more In which was characterized by Rukoto.

  An eleventh technical means is a recording / reproducing system comprising a recording / reproducing apparatus having a recording means for recording content data of a broadcast program, and a server device connected to the recording / reproducing apparatus via a communication network, The server device generates, from the content data recorded by the recording means, summary information generation means for generating summary information summarizing the content data based on a predetermined condition, and summary information generated by the summary information generation means for predetermined communication Means for transmitting to the counterpart device, and the recording / playback apparatus comprises a control means for erasing the content data recorded in the recording means in accordance with the operation information sent from the counterpart device. A recording / reproducing system.

  According to the present invention, summary information indicating the contents of a recorded program is generated and transmitted to a predetermined communication partner device, so that the user can understand the contents of the program specifically at the communication partner device. Accordingly, it is possible to provide a recording / reproducing apparatus and a recording / reproducing system which can easily execute the necessity / unnecessity of the recorded program on the device of the communication partner.

It is a block diagram which shows the structure of one Embodiment of the video recording / reproducing apparatus based on this invention. It is a figure explaining the process which produces | generates summary information from the content data of the received program. It is a figure which shows the example of a display in the user terminal of the summary information which the video recording / reproducing apparatus transmitted. It is a figure which shows notionally the apparatus structural example on a network containing a recording / reproducing apparatus and the user terminal which transmits the summary information produced | generated by the recording / reproducing apparatus. It is a flowchart for demonstrating the process example in which a recording / reproducing apparatus acquires the parameter of a user terminal. It is a figure explaining an example of the inquiry process in a parameter acquisition process. It is a figure explaining the process which changes the transmission content of summary information according to the performance of the user terminal which receives summary information. It is a flowchart which shows the process example when transmitting summary information to a user terminal, after recording of content data is completed. 9 is a flowchart for further explaining an example of a summary information generation process of FIG. 8. It is a figure explaining the example of a process of the deletion judgment of the video recording content data of a memory | storage device. It is a figure which shows the other example of the summary information of the content data transmitted from a video recording / reproducing apparatus.

FIG. 1 is a block diagram showing the configuration of an embodiment of a recording / playback apparatus according to the present invention.
The broadcast receiving unit 11 is an external input terminal that receives a broadcast signal input from an external antenna line. When the recording / playback apparatus 1 includes an antenna unit, the antenna unit corresponds to the broadcast receiving unit 11. As broadcast signals received by the broadcast receiving unit 11, broadcast signals of various broadcast standards such as terrestrial digital broadcasts and analog broadcasts provided in some areas can be applied.

  The data receiving unit 12 is a part that mainly receives data from the Internet. When the recording / reproducing apparatus 1 has a shape like an existing recorder, the data receiving unit 12 is generally configured as a receiving unit of WiFi (wireless fidelity). The data receiving unit 12 is connected to the Internet via a wireless access point from WiFi, a wireless communication function such as 3G (3rd generation mobile phone), PHS (Personal Handy-phone System), or a wired LAN. When communication is performed by the communication function of, the communication unit is configured.

  The user operation input unit 13 receives a user operation on the recording / playback apparatus 1. For example, the user operation input unit 13 receives an operation signal generated by an operation of a button or the like provided in the recording / playback apparatus 1, a remote control signal transmitted using infrared or Bluetooth (registered trademark) or the like, or data reception The receiving unit is configured to receive an operation signal input from the outside through the unit 12. Alternatively, an operation input to an operation input unit such as a key, a button, or a touch panel provided in the recording / playback apparatus 1 is received.

The recording unit 14 is a part that records content data such as a broadcast program received by the broadcast receiving unit 11, and includes an encoder unit 15, a data analysis unit 16, and a storage device 17. The encoder unit 15 performs encoding for compressing the data capacity of the received content data, and stores it in the storage device 17. The recording unit 14 corresponds to recording means of the present invention.
For example, in the case of terrestrial digital broadcasting, image data received by terrestrial digital broadcasting is encoded by MPEG-2. H.264 performs encoding again. Encoding in the encoder unit 15 is performed not only on image data but also on audio data included in content data.

  The data analysis unit 16 of the recording unit 14 analyzes and extracts contents that need to be notified to the user from program information included in the recorded content data. The analysis of the program method assumed here is similar to the process for realizing the digest reproduction of the program. Digest playback refers to a function of analyzing changes in video and audio of content data and skipping portions that are considered unnecessary. Digest playback is a well-known function that is sometimes called by names such as highlight playback and good idea.

As an example of a known digest reproduction, for example, in Patent Document 2 (Japanese Patent Laid-Open No. 2009-4994), a user's preference is interpreted without inputting an explicit method or parameter, and a digest suitable for the user's preference is obtained. A technique for automatically creating the digest video information is described.
Here, the video apparatus extracts feature information from the video data based on the size of the sound excitement, keywords, and the like. Then, the user's operation information is recorded, and the importance of the operation is obtained with respect to the time of the video by evaluating the scoring. Furthermore, scene importance level information is generated for a scene for digest playback determined by a parameter for designating the playback time of the digest from the video. Next, the degree of correlation between the operation importance level information and the scene importance level information is evaluated, and a combination of parameters for increasing the correlation level is determined. Then, the scene importance level information and parameters are updated for a while to generate optimal scene importance level information. Finally, digest playback position information is generated based on the generated scene importance level information and digest playback time.
Although the above technique shows an example of digest playback processing, the present invention is not limited to the above processing example, and changes in video and audio of content are analyzed, and unnecessary portions are skipped and extracted. It is assumed that the content data is analyzed by appropriately applying known processing.

  The data analysis unit 16 is a processing unit that performs processing corresponding to digest playback as described above. The data analysis unit 16 includes a processor, a memory, and the like that process video. The data analysis unit 16 also analyzes the contents of the video / audio / data broadcast included in the content data received by the broadcast receiving unit 11. The analysis can be appropriately executed at a timing after the content data is received by the broadcast receiving unit 11 or after being encoded by the encoder unit 15.

The storage device 17 stores the content data received by the broadcast receiving unit 11 or the content data encoded by the encoder unit 15 and corresponds to a storage unit of the present invention. Here, program information included in the content data of the program is also stored in the storage device 17.
In a general recording / playback apparatus (mainly a recorder), an HDD (Hard disk drive) is used as a storage device, and the HDD can be applied to the storage device 17 also in the embodiment according to the present invention. The storage device 17 is not limited to an HDD, and storage means such as an SSD (Solid State Drive) or a DRAM (Dynamic Random Access Memory) can be applied. In addition to the magnetic disk and semiconductor memory, an optical disk such as a BD (Blu-ray Disc) may be used as the recording medium.

The control unit 18 corresponds to the control unit of the present invention, and includes a CPU (Central Processing Unit) and a storage unit such as a ROM that stores various programs and data. The CPU executes the program stored in the storage unit. As a result, control of the operation of each part of the apparatus, analysis processing of received content data, and the like are performed.
The storage unit 19 is a storage device for holding data received by the data receiving unit 12, data related to a result analyzed by the data analysis unit 16, data related to a result processed by the control unit 18, and the like. For example, a semiconductor memory can be applied as the storage unit 19.

  The notification content generation unit 20 extracts the important part of the program from the information related to the result of the analysis of the stored program information by the data analysis unit 16 and the data received by the data reception unit 12 and held in the storage unit 19. Using the information on the important part and the program information obtained from the content data, a process for generating the summary information of the program is performed. The summary information generation means of the present invention is realized by the function of the notification content generation unit 20.

  The data received by the data receiving unit 12 is data acquired using an information providing service provided by a computer on the Internet such as Twitter. The notification content generation unit 20 uses the analysis result of the content data by the data analysis unit 16, that is, the extraction result of the part considered to be important of the content data, and the information received by the data reception unit 12, etc. A portion to be notified to the user is extracted from the content data. Then, the summary information of the program is generated using the extracted information and the like. The data receiving unit 12 implements the information acquisition unit of the present invention.

  The data transmission unit 21 notifies the user of the summary information by transmitting the summary information generated by the notification content generation unit 20 using a predetermined communication unit. The data transmission unit 21 can be physically configured in common with the data reception unit 12 and appropriately uses communication means such as WiFi, 3G / PHS, wired LAN (Local Area Network), Ir (Infrared), and the like. It can be configured to perform data transmission. The transmission / reception means of the present invention is realized by the functions of the data transmission unit 21 and the data reception unit 12.

Next, basic recording processing in the recording / playback apparatus 1 will be described.
A user reserves a program to be recorded by performing a predetermined user operation on the recording / playback apparatus 1. As a predetermined user operation, for example, a program that the user wants to record can be designated one program at a time using a remote controller or the like. The user operation input unit 13 receives a user operation by receiving a remote control signal generated by the user operation. Alternatively, when the user inputs a keyword using a remote controller or the like, the recording / playback apparatus 1 can automatically record a program corresponding to the keyword by the automatic recording function. Here, it is assumed that the recording / playback apparatus 1 has the automatic recording function. Further, it may be provided with a function of making a recording reservation from a remote communication terminal device via a network.

  When the start time of the program directly selected by the user or the program automatically selected based on the input keyword or the like is reached, the control unit 18 uses the recording unit 14 to store the content data of the program received by the broadcast receiving unit 11. Control to record. The recording unit 14 performs encoding if the received content data needs to be encoded according to the user setting, and stores the encoded content data in the storage device 17. When the recording target program ends, the control unit 18 controls the broadcast receiving unit 11 and the recording unit 14 to stop the respective processes.

Next, an example of processing for creating summary information from received program content data will be described. As described above, digest reproduction technology can be used when creating summary information of a program.
The data analysis unit 16 can analyze the content data received by the broadcast reception unit 11 in real time during the recording, or can analyze the content data once recorded in the storage device 17. As described above, the content data analysis is performed by analyzing and extracting contents that are considered necessary for the user from the program information included in the content data of the broadcast program. The specific method is as described above, for example. A known method can be applied. Further, the embodiment according to the present invention does not characterize and limit the analysis method itself.
In addition, since the method of using the content data after analysis, for example, the method of calculating the threshold value for whether or not to include in the digest varies depending on the analysis method and the type of program, detailed description of the processing is omitted here.

FIG. 2 is a diagram for explaining processing for generating summary information from content data of a received program. In FIG. 2, (A) shows the entire content data of a recorded program, and the horizontal axis is the time axis.
FIG. 2B is a diagram showing a result of analyzing video / audio during recording of the content data shown in FIG. The analysis method used for the analysis of FIG. 2B is Fd (x), and the reference value used at this time is Td. As described above, the analysis method is one of known processes for analyzing changes in video and audio of content data and skipping unnecessary portions, and here, the analysis method is Fd (x).

  The analysis result shown in FIG. 2 (B) is obtained as a result of analyzing a video or the like for performing digest reproduction, and a portion exceeding the reference value Td is determined to have high importance. The importance level is a value indicating whether digest playback is necessary. This importance level varies depending on the analysis method to be applied (here, Fd (x)). Further, the reference value Td varies depending on the type of program even with the same calculation method. Fd (x) corresponds to the importance extraction condition of the present invention.

  FIG. 2C is a diagram illustrating a result of analysis processing of data received by the data receiving unit 12. The data received by the data receiving unit 12 is not limited to specific data, but is assumed to be data that can be acquired mainly from the Internet. Here, different analysis methods can be applied depending on the received data. For example, data obtained by Twitter, which is an information service provided by the Internet and capable of posting short texts called tweets. It shall be analyzed.

When the recording unit 14 is recording the program content data, the notification content generation unit 20 of the recording / playback apparatus 1 periodically searches for tweets provided by Twitter and includes a tag including the name of the program being recorded. Calculate the number of comments. These numbers can be calculated for each predetermined search time period. With this process, the tweet is used as an index indicating the degree to which the user is excited about the program.
In addition to the number of comments, there are various methods for calculating the analysis result, such as taking into account the content of the comment and the time until the comment appears.

The analysis method used for analyzing the data in FIG. 2C is Ft (x), and the reference value used at this time is Tt. It is determined that the portion exceeding the reference value Tt is an important portion that is excited by the user.
In this example, Twitter was used as an example of an information service for acquiring data. However, if the service allows the user to speak in real time, such as a blog service or various SNSs (Social Networking Service), the data search service is limited. Not what you want.

FIG. 2D is a diagram showing extraction information of important parts generated from the analysis result of the program content data and the analysis result of the information received by the data receiving unit 12 or the like.
The notification content generation unit 20 of the recording / playback apparatus 1 uses the analysis result of the recorded content data and the analysis result of the data received by the data receiving unit 12 or one of them to extract the extraction information of the important part of the program. Generate. In this case, the analysis method Fd (x) in FIG. 2B and the analysis method Ft (x) in FIG. 2C are integrated by performing a predetermined weighting as shown in FIG. The range that is finally determined to be important is extracted. A value including the weighting at this time is defined as Fw (x). FIG. 2E shows an example of an important range image (representative image) extracted by Fw (x) in FIG.
Through the above processing, it is possible to generate extraction information that extracts important portions of the content data to be notified to the user from the content data to be recorded and the data acquired using the information providing service via the Internet. .

Next, a processing example for notifying the user of summary information generated from content data will be described.
In the recording / playback apparatus 1, summary information of content generated by analyzing recorded content data is transmitted in a predetermined data format to a communication apparatus (hereinafter referred to as a user terminal) that is a transmission destination used by a predetermined user. It transmits from the data transmission part 21. In this case, the summary information includes program information acquired from the content data of the broadcast program and image data of the important part of the program extracted by the notification content generation unit 20. The summary information can include a Twitter comment received by the data receiving unit 12.

  As the image data of the important part, for example, one still image can be extracted and transmitted from the range extracted by the notification content generation unit 20 as the important part of the content data. Or you may transmit the animation of the whole range or a part of range of an extraction part. The important part judged from the analyzed content data is the part where the user is excited by the information providing service such as Twitter, and it is the part that seems to be the point of attention, so the image data of this part is included in the summary information Send to user terminal.

The summary information transmitted to the user terminal can be appropriately generated according to the transmission destination.
When the image data of the important part is included in the summary information and transmitted to the user terminal as described above, it is better to optimize the form of the image data to be transmitted according to the performance of the user terminal that is the notification destination. In this case, if the data processing capability of the user terminal is not high, it is conceivable to transmit the image data of the important part as a still image.

The user terminal that receives the information transmitted from the recording / playback apparatus 1 is not particularly limited. For example, a mobile phone can be applied as the user terminal. Recent mobile phones have improved communication speed and data processing performance, and can receive and display rich content.
In such a case, for example, summary information combining media such as character information, still images / moving images, and music can be transmitted from the recording / playback apparatus 1 to the user terminal. In this case, as the data format of the summary information to be transmitted to the user terminal, a data file by HTML mail can be assumed, but in addition, only a specific URL is transmitted from the recording / playback apparatus 1 to the user's device. The summary information generated by the recording / playback apparatus 1 may be acquired at the user terminal by accessing the URL from the user terminal.

FIG. 3 is a diagram illustrating a display example on the user terminal of the summary information transmitted by the recording / playback apparatus.
The summary information of the program transmitted from the recording / playback apparatus 1 can be received by a predetermined user terminal and displayed on the display screen. Here, the summary information 10 displayed on the display screen of the user terminal is the program information 101 acquired from the content data of the program recorded by the recording / playback apparatus 1 and the important data extracted from the content data received by the recording / playback apparatus 1 The image data 102 of the part and the information 103 acquired by the recording / playback apparatus 1 from the information providing service on the Internet in the time zone related to the important part are displayed. The important part of the image data 102 can be displayed as a thumbnail image. The information 103 is character information of a tweet acquired by, for example, Twitter. Further, the summary information 10 may include information 104 such as a Web page or an image of URL information acquired from broadcasting.

FIG. 4 is a diagram conceptually illustrating an example of a device configuration on a network including a recording / playback apparatus and a user terminal that transmits summary information generated by the recording / playback apparatus.
In the recording / reproducing apparatus 1, summary information generated using the content data of the recorded program and the data received by the data receiving unit 12 is transmitted to a specific user terminal 2. In this case, the recording / playback apparatus 1 can appropriately change the content of information displayed on the user terminal 2 in accordance with the performance of the user terminal 2.

The user terminal 2 is a terminal device that receives summary information transmitted from the recording / playback apparatus 1 by a user at a destination or the like, for example. As the user terminal 2, a communication device such as a mobile phone, a tablet terminal, or a wristwatch with a communication function can be used.
The server 3 acquires and accumulates predetermined information from the recording / playback apparatus 1 and the user terminal 2. The server 3 can also execute the content data analysis and summary information generation processing executed by the recording / playback apparatus 1. By providing summary information generating means for generating summary information in the server 3, the recording / reproducing system of the present invention is realized. in this case,

When the recording / playback apparatus 1 generates summary information that matches the performance of the user terminal when transmitting the summary information of the content data to the user terminal 2, the recording / playback apparatus 1 needs the information of the user terminal 2. . The information of the user terminal 2 is information related to a parameter indicating what information should be transmitted to the user terminal 2, for example.
Examples of parameters include the screen size, screen resolution, communication speed, data processing capability (moving image playback capability, etc.) of the user terminal 2, position information of the user terminal 2, and the like.

When the recording / playback apparatus 1 acquires these parameters, for example, it is conceivable that the user directly inputs various parameters to the recording / playback apparatus 1. Further, the recording / playback apparatus 1 may acquire desired parameters from the user terminal 2 by making an inquiry to the user terminal 2 via the network.
Alternatively, a parameter indicating information on the user terminal 2 may be registered in the server 3 in advance so that the recording / playback apparatus 1 can acquire the parameter of the specific user terminal 2 from the server 3. This process is also effective when the user terminal 2 does not have a means for outputting the above parameters. Here, for example, the user terminal 2 notifies the server 3 only of simple information indicating that its own power supply is turned on. In the recording / playback apparatus 1, the server 3 confirms that the target user terminal 2 is powered on, acquires the parameters of the user terminal 2 from the server 3, and generates summary information according to the parameters. Can be sent.

  Further, the information of the user terminal 2 is not passed to the recording / reproducing apparatus 1 but is held in the server 3 so that the recording / reproducing apparatus 1 analyzes the content data. Then, the server 3 requests the recording / playback apparatus 1 for the format of the summary information to be generated and the media information to be included in the summary information (program information, image data of important parts, data acquired from Twitter, etc.). The server 3 may generate summary information. In this case, the server 3 can generate the summary information and transmit it to the user terminal 2 based on the parameters of the user terminal 2 to which the summary information is to be transmitted.

FIG. 5 is a flowchart for explaining a processing example in which the recording / playback apparatus acquires the parameters of the user terminal.
First, when it becomes necessary to transmit the summary information to the user terminal 2, the recording / playback apparatus 1 performs a process for specifying the user terminal 2 that is the transmission destination. As the previous stage, first, the recording / playback apparatus 1 specifies a device that can be the user terminal 2 (step S11). At that time, the user registers the user terminal in advance with respect to the recording / reproducing apparatus 1, and the recording / reproducing apparatus specifies the user terminal 2 that is the transmission destination of the summary information from the registered information. In this case, the user operates a keyboard, a button, a remote controller or the like provided in the recording / playback apparatus 1, receives the operation input by the user operation input unit 13, and registers the user terminal in the storage unit 19.

Alternatively, the recording / playback apparatus 1 may store a connection history with an external device such as a user terminal, and specify the user terminal 2 as a transmission destination from the information of the connection history.
In this case, the connection history of the user terminal connected in the past is recorded in the storage unit 19 in advance, and when the summary information is transmitted, the connection history information is presented to the user, and the specific user terminal is determined from the presented connection history information. Let the user select The connection history information presented to the user can be displayed on a display device (not shown in FIG. 1) to which the recording / playback device 1 is connected. For example, since the general recording / playback apparatus 1 is connected to a display device such as a television receiver or a monitor, the connection history information is displayed on the display device.

  Alternatively, the list information of the user terminal for transmitting the summary information is transmitted from the data transmission unit 21 of the recording / playback apparatus 1 to another predetermined terminal device. A user who operates another predetermined terminal device can perform an operation of selecting a user terminal to which summary information should be transmitted from the transmitted list information. The selection result of the user terminal is returned to the recording / reproducing apparatus 1, and the recording / reproducing apparatus 1 specifies the user terminal 2 to which the summary information is to be transmitted based on the reply.

  Through the processing as described above, the user terminal to which the summary information is to be transmitted is specified. Here, since the number of user terminals registered by the user is not necessarily one, when a plurality of user terminals are registered, a plurality of user terminal candidates for finally transmitting summary information are identified. It will be.

  Next, the recording / reproducing apparatus 1 determines the number of user terminals specified by the above processing (step S12), and when there is only one specified user terminal, the user terminal to be used is one. (Step S14). If no user terminal can be identified in step S11, the subsequent process cannot be performed, and the process ends.

  In addition, when a plurality of user terminals are specified in step S11, it is not possible to determine a user terminal to which summary information is to be transmitted. In this case, the recording / reproducing apparatus 1 knows information about whether each user terminal can communicate with each of the candidate user terminals or whether the user holds the user terminal. And request notification of a response to the inquiry (step S13). Then, the user terminal to be used for transmitting the summary information is determined from the user terminals to which the response notification is returned (step S14).

  Next, the control part 18 confirms whether the parameter which shows the communication speed etc. of the determined user terminal is hold | maintained (step S15). Here, when the recording / playback apparatus 1 acquires parameters from a user terminal that has been connected in the past, or when the user terminal parameters are set in the recording / playback apparatus 1 by a user operation, a summary is given. The recording / playback apparatus 1 holds parameters of a user terminal to which information is to be transmitted. Therefore, in this case, the parameter acquisition process ends.

On the other hand, when the recording / playback apparatus 1 does not hold the parameter of the determined user terminal, it requests the determined user terminal to transmit the parameter (step S16).
Here, the control unit 18 of the recording / playback apparatus 1 transmits information requesting the determined parameter of the user terminal to the user terminal via the data transmission unit 21. The user terminal that has received this request information returns its own parameters to the recording / playback apparatus 1. The recording / playback apparatus 1 acquires the parameters via the data receiving unit 12 and stores them in the storage unit 19 (step S17). This completes the parameter acquisition process.

  In the above example, an inquiry is made as to whether or not the user terminal is communicable in step S13, and a parameter is requested from the user terminal in step S16. Instead, a candidate is obtained in step S13. When making an inquiry to a user terminal, the user terminal parameter may be requested together with information such as whether the user terminal is communicable.

  In the above example, when the recording / playback apparatus 1 does not hold the parameter of the determined user terminal, the user terminal is requested to transmit the parameter directly. If the server 3 holds the parameters of the user terminal, the server 3 may be requested to transmit the parameters of the user terminal.

  Through the above processing, the recording / playback apparatus 1 obtains and holds the parameters of the user terminal used for transmitting the summary information. As a result, it is possible to recognize the type and parameter of the user terminal that transmits the summary information, and to determine the creation condition of the summary information to be transmitted to the user terminal according to the parameter.

FIG. 6 is a diagram for explaining an example of an inquiry process in the parameter acquisition process.
Here, four user terminals 2a, 2b, 2c, and 2d are identified from the past connection history information stored in the storage unit 19 of the recording / playback apparatus 1 when determining the user terminal to be used for transmission of summary information. It shall be assumed.
In this case, the recording / playback apparatus 1 transmits a notification request to each user terminal 2a, 2b, 2c, 2d through the data transmission unit 21. Each user terminal 2a, 2b, 2c, 2d that has received the notification request notifies a response to that effect when communication is possible. The communicable state refers to, for example, a state in which the user terminal itself is turned on and has the ability and function to respond to a notification request.

In the example of FIG. 6, it is assumed that the user terminals 2b and 2c respond among the user terminals 2a to 2d that have received the notification request from the recording / playback apparatus 1.
In this case, the recording / playback apparatus 1 receives the response notification from the user terminals 2 b and 2 c by the data reception unit 12 and stores the received notification information in the storage unit 19. The control unit 18 determines a user terminal to be used for transmission of summary information based on the information stored in the storage unit 19.

  In response to a notification request from the recording / playback apparatus 1, the user notifies the user terminal of a response using e-mail, or responds using a browser based on a specified URL. In the recording / playback apparatus 1, the user terminal is determined at that time. Since the response by mail or browser is performed by a user operation, the user terminal should be determined as the user terminal that transmits the summary information.

In addition, the user terminal that has received the notification request can automatically notify a response to the received notification request. A processing example in this case will be described.
When a response is notified from the user terminals 2b and 2c, the recording / playback apparatus 1 can present the fact on a predetermined display unit and allow the user to select a user terminal to be used.
Also, the priority of the user terminal is designated in advance, and when a response is notified from the plurality of user terminals 2b and 2c, the user terminal to which the summary information is to be transmitted is determined according to the designated priority. May be.
Alternatively, when the user terminal notifies a response to the request notification from the recording / playback apparatus 1, for example, in addition to the information indicating that the power of the user terminal is turned on, the position information and movement information of the user terminal are included. Send. The position information is information indicating the current position of the user terminal taken from GPS, for example, and the movement information is information indicating that the user terminal is moving due to displacement of the position information, for example.

For example, the user terminal 2b is notified of information indicating that its own power is ON and information indicating that it is moving, and the user terminal 2c indicates that its own power is ON. It is assumed that the information to be shown and the current position information are notified.
The control unit 18 stores the notification of the response received from the user terminals 2b and 2c in the storage unit 19 and analyzes the notification. If the user terminal is moving, the user terminal 2b is determined as the user terminal to which the summary information is to be transmitted, assuming that the user terminal held by the user who should notify the summary information is highly likely.

FIG. 7 is a diagram illustrating a process of changing the content of transmission of summary information according to the performance of the user terminal that receives the summary information. Here, the recording / playback apparatus 1 acquires the performance information of the user terminal of the communication partner to which the summary information is to be transmitted, and changes the content of the summary information according to the performance information.
FIG. 7A shows a case where the user terminal 2e that transmits summary information is a high-performance device capable of high-speed communication. As described above, when the user terminal of the transmission destination is high-performance, when the recording / playback apparatus 1 generates the summary information, the summary information is the moving image 21 in which the image data of the important part of the program extracted from the content data is animated. Can be included. Alternatively, the image data of the important part may be reproduced by streaming on the user terminal. In this case, as shown in FIG. 2D, the reference value and weighting when extracting the important part are changed so that the range to be extracted as the important part is made shorter so as to be suitable for streaming playback. May be.

  FIG. 7B shows a case where the user terminal 2f that transmits the summary information 10 is a device having a certain degree of processing / communication capability, such as a mobile phone. In such a case, summary information 10 as shown in FIG. 3 can be sent. In this case, the summary information 10 includes program information acquired from the content data of the program, still image data of important parts extracted from the content data (displayed as thumbnails), and time zone related to the important parts on the Internet. Information acquired from information providing services such as Twitter is included.

  FIG. 7C shows a case where the user terminal 2g that transmits summary information is, for example, a messenger terminal that does not have a graphical display function. In such a case, it may be possible to display information acquired from an information providing service such as Twitter together with program information acquired from program content data as summary information. Is longer than the display unit of the user terminal 2g, and it may be difficult to easily check the summary of the content data. For this reason, when the destination device is a user terminal 2g such as a messenger terminal, for example, only the total number of information acquired from Twitter or the like together with program information is transmitted as summary information 15, or further acquired from Twitter. The number of pieces of information may be limited, and a predetermined number of pieces of information may be transmitted as summary information.

Next, when summary information is transmitted from the recording / playback apparatus to the user terminal, an example of content change processing of summary information according to the transmission timing will be described.
The timing for transmitting the summary information from the recording / playback apparatus 1 to the user terminal 2 is basically after the recording of the content data of the broadcast program is completed. In addition, summary information can be appropriately transmitted in response to a request from the user.

  In addition to these timings, for example, the recording / playback apparatus 1 monitors the remaining storage capacity of the storage device that stores the content data, and the next recording or after a certain period of time when the remaining capacity becomes insufficient. When it is predicted that the scheduled recording until the previous execution is impossible, the summary information of the recorded content may be transmitted at that time. In this case, the summary information can include summary information of content data that has already been recorded in the past in order to prompt deletion. The content data recorded in the past can be content data having a data capacity larger than a predetermined level or content data recorded within a certain past period, and the conditions can be determined as appropriate. At this time, the remaining capacity information of the storage capacity may be included.

  When the content data recording is completed as described above and the summary information of the recorded content data is transmitted, the remaining capacity of the storage capacity at that time is confirmed and the content of the summary information is changed. The user may be prompted to delete the recorded content data.

  As another transmission timing of the summary information, the summary information may be periodically transmitted to the user terminal. In this case, the recording / playback apparatus 1 transmits summary information of the content data recorded during that period to the user terminal 2 at regular intervals. The length of the certain period can be determined as appropriate. For example, a period such as one day or one week can be determined. Further, summary information of the predetermined number of content data may be transmitted to the user terminal 2 at the time when the content data of a predetermined number (for example, five) programs are recorded instead of a certain period.

FIG. 8 is a flowchart showing a processing example when the summary information is transmitted to the user terminal after the recording of the content data is completed.
In this case, when the recording / playback apparatus 1 records the content data of the program (step S21), summary information is generated by the notification content generation unit 20 (step S22), and the user terminal is transmitted via the data transmission unit 21. The summary information is transmitted to 2 (step S23).

FIG. 9 is a flowchart for further explaining an example of the summary information generation process of FIG.
When generating the summary information, the control unit 18 confirms the transmission history of the summary information to the user terminal stored in the storage unit 19. The transmission history information includes information related to the transmission timing and contents of the summary information. The control unit 18 can grasp the transmission contents of the summary information to the previous user terminal and the elapsed time since the transmission from the information of the transmission history to the user terminal. Here, it is confirmed whether or not a predetermined period has elapsed since the previous transmission of the summary information (step S31).

And the control part 18 confirms whether there is room in the recording residual amount of the memory | storage device 17 of the video recording part 14 (step S32). In order to determine the remaining capacity, for example, the next scheduled recording can be performed, the reserved program can be recorded for a certain period (for example, one week from the present), or a predetermined time Judgment conditions such as being capable of recording are determined in advance.
The recording reservation is performed through the user operation input unit 13 and the data receiving unit 12, and the reservation content is held in the storage unit 19. Therefore, the control unit 18 can determine from the recording information in the storage unit 19 and the remaining amount in the storage device 17 whether the next reservation can be executed or whether a reserved program for a certain period can be recorded.

When the control unit 18 determines that the remaining capacity of the storage device 17 is sufficient, the notification content generation unit 20 generates summary information of one recorded program and transmits the summary information from the data transmission unit 21 to the user terminal (step S33). ).
On the other hand, if it is determined that the remaining capacity of the storage device 17 is not sufficient, the control unit 18 further includes content data that can be erased or less important among the content data of the program stored in the storage device 17. It is confirmed whether there is room in the remaining amount of the storage device 17 by deleting the content data (step S34). The remaining capacity is determined based on the determination condition in step S32.

  When the recording / playback apparatus 1 determines that there is room in the remaining capacity of the storage device 17 when erasable content data is deleted from the storage device 17, the recording / playback device 1 generates summary information about the content data of the recorded program. While transmitting to the terminal 2, the information which shows that the content data already recorded on the memory | storage device 17 is deleted is produced | generated, and it transmits to the user terminal 2 (step S35). In this case, since the content data is deleted from the storage device 17, the notification content generation unit 20 also transmits summary information of the content data to be deleted to the user terminal and confirms with the user whether or not the deletion is permitted. You may make it make it.

  On the other hand, if it is determined that there is no room in the remaining capacity even if the erasable content data is erased from the storage device 17, the recording / playback device 1 uses the content data information that has not been determined to be erased by the user. The data is transmitted to the terminal 2 and prompted to instruct to delete data in the storage device 17 (step S36). In this case, for example, all pieces of content data information that is not determined to be deleted may be transmitted, or only the content data having a data capacity larger than a predetermined amount may be transmitted. At this time, information indicating that the content data reserved for recording cannot be recorded as it is is transmitted to the user terminal 2.

  As described above, in the recording / playback apparatus 1, the content of the summary information is changed according to the remaining amount of the storage device 17 so that the user can determine the necessity / unnecessity of the recorded content data. By making it possible to instruct erasure, it is possible to provide an environment in which content data that is captured without being organized can be easily organized from a remote user terminal.

FIG. 10 is a diagram for explaining an example of processing for determining the deletion of recorded content data in the storage device 17. In the recording / playback apparatus 1, the importance of the content data recorded in the storage device 17 can be set. Whether or not the content data in the storage device 17 can be erased is determined according to this importance.
For example, as shown in FIG. 10A, after the user 40 views the recorded content data, the importance can be set by a user operation. In this case, for example, the importance level setting unit 31 is displayed on the display device 30 connected to the recording / reproducing apparatus 1, and the importance level of the recorded content data is appropriately set by a user operation on the recording / reproducing apparatus 1. In this example, the importance can be expressed in 1 to 4 levels of the star, but the importance setting method can be determined as appropriate.

  Further, as shown in FIG. 10B, when the user 40 refers to the summary information 10 transmitted to the user terminal 2, the importance level is set for the content data for which the summary information 10 is created. Also good. In this case, the degree of importance considered by the user can be set by the importance setting unit 31 similar to that shown in FIG. In addition to this, it is possible to operate a protection button 32 for designating protection against clearly erasing important content data and an erasure button 33 for instructing erasure of content data that may be erased. Can be displayed.

  Also, as shown in FIG. 10C, the importance of recorded content data is determined based on the number of related information acquired from an information providing service such as Twitter, as in the case of generating summary information. May be. Or you may make it judge the importance of content data based on the evaluation result of the program evaluation site provided on the internet. At this time, the importance setting unit 31 indicating the importance automatically determined from the acquired information may be displayed on the predetermined display device 30.

  When the importance level is set for the content data recorded by the above processing, whether or not the content data can be erased based on the importance level of the recorded content data when the content data is newly recorded thereafter. Judgment can be made. When determining whether or not the storage device 17 has a margin for generating summary information, the erasable content data can be erased to generate a margin in the storage device 17.

  FIG. 11 is a diagram showing another example of summary information of content data transmitted from the recording / playback apparatus. FIG. 11A shows a display screen of the summary information 10 ′ transmitted to the user terminal 2 when there is no margin in the remaining capacity even if the content data is deleted from the storage device 17. Summary information 10 ′ displayed on the display screen of the user terminal includes summary information 106 that is transmitted first after content data is recorded.

  The summary information 106 includes program information 101 acquired from the content data of the recorded program, image data 102 of the important part extracted from the recorded content data, and the recording / playback apparatus 1 on the Internet during the time zone related to the important part. Information 103 acquired from the information providing service is included. The important part of the image data 102 can be displayed as a thumbnail image. The information 103 is character information of a tweet acquired by, for example, Twitter.

  In this example, summary information 105 of content data recorded in the past is also transmitted to the user terminal 2. The content data summary information 105 recorded in the past has already been transmitted to the predetermined user terminal 2 at least once. In this example, the user deletes the content data recorded in the storage device 17. Therefore, the summary information of the content data recorded in the past is transmitted to the user terminal 2 together with the summary information 102 of the content data just recorded.

  For example, when the summary information is transmitted from the recording / playback apparatus 1 to the user terminal 2 at regular intervals, if the length of the regular period is long, the amount of content data recorded during that period may increase. In this case, information per summary information 105 of content data recorded in the past may be simplified and transmitted. Alternatively, a predetermined number of pieces of content data summary information 105 may be transmitted in descending order of data capacity from content data recorded during a certain period.

When the user who has confirmed the summary information 10 ′ performs an operation of selecting content to be deleted from the storage device 17 of the recording / playback device 1, a selection operation unit 34 as shown in FIG. It can be switched and displayed as a separate screen.
The selection operation unit 34 displays an importance level setting unit 31 that sets the importance level of content data, a protection button 32 that specifies protection of content data, and a deletion button 33 that instructs deletion of content data. . When erasing content data, by operating the erasure button 33, the operation information is returned to the recording / playback apparatus 1, and the target content data is erased from the storage device 17. Further, by lowering the importance level setting, the content data can be erased from the storage device 17 if the erasure condition corresponding to the importance level is met. If the contents data is to be protected regardless of the importance level setting, the protection button 32 is operated.

  As described above, the recording / playback apparatus according to the embodiment of the present invention generates and generates program summary information using broadcast program content data and data acquired from an information providing service or the like on the Internet. The summary information can be transmitted in a format that matches the user terminal that is the transmission destination. In the transmission of the summary information, not only the program information included in the content data of the broadcast program but also the data extracted from the content data, the data related to the program acquired from the information providing service, and the like are transmitted. Thus, the user who sees the summary information can more accurately determine the importance (required / unnecessary) of the recorded data.

  As a result, the necessity / unnecessity of the recorded content data is sequentially determined, so that the frequency with which the remaining storage capacity is tight can be suppressed. Alternatively, if the recording / playback apparatus automatically deletes the recorded data when the storage capacity is tight, the recording / playback apparatus can perform processing such as deleting from the already determined importance level. Even when content data is automatically deleted, erasure not intended by the user is not performed.

  Then, by transmitting the generated summary information in a format that matches the user terminal that is the transmission destination, the user can obtain more appropriate summary information according to the type and form of the user terminal that is the communication destination. . As a result, it is possible to obtain the maximum detailed information about the recorded program at the user terminal owned by the user, and to grasp the outline of the program without completely viewing the program.

  In addition, the recording / playback apparatus according to the embodiment of the present invention can set the transmission timing of summary information under several conditions, and can change the content of the summary information according to the transmission timing at that time. Thus, the recording contents to be confirmed at that time can be confirmed by sequential notification for each recording or notification of plural information when the user wants to organize the recording apparatus. Furthermore, since the opportunity for the user to determine the necessity / unnecessity of the program and the importance increases, it is possible to prevent the situation where the user is not recognized even if the recording is performed.

DESCRIPTION OF SYMBOLS 1 ... Recording / reproducing apparatus, 2, 2a, 2b, 2c, 2d, 2f, 2g ... User terminal, 3 ... Server, 10, 10 '... Summary information, 11 ... Broadcast receiving part, 12 ... Data receiving part, 13 ... User Operation receiving unit, 13 ... user operation input unit, 14 ... recording unit, 15 ... encoder unit, 16 ... data analysis unit, 17 ... storage device, 18 ... control unit, 19 ... storage unit, 20 ... notification content generation unit, 21 DESCRIPTION OF SYMBOLS ... Data transmission part, 30 ... Display apparatus, 31 ... Importance setting part, 32 ... Protection button, 33 ... Erase button, 34 ... Selection operation part, 40 ... User, 101 ... Program information, 102 ... Image data of important part, 103: Information acquired from the information providing service, 104: Information acquired from broadcasting, 105: Summary information, 106: Summary information.

Claims (11)

Recording means for recording content data of broadcast programs;
Summary information generating means for generating summary information summarizing the content data based on a predetermined condition from the content data recorded by the recording means;
Transmission / reception means for transmitting the summary information generated by the summary information generation means to a device of a predetermined communication partner and receiving operation information from the device of the communication partner;
A recording / reproducing apparatus comprising: control means for erasing content data recorded in the recording means in accordance with operation information transmitted from the device of the communication partner. The recording / playback apparatus according to claim 1,
Using an information providing service provided by a computer on a communication network, information acquisition means for acquiring information on content data recorded by the recording means;
The summary information generated by the summary information generation means is:
A recording / reproducing apparatus, characterized in that the recording / reproducing apparatus is generated based on information on content data acquired by the information acquisition means. The recording / playback apparatus according to claim 2,
The summary information generating means extracts the data of the portion regarded as important from the content data recorded by the recording means according to a predetermined importance extraction condition,
And, based on the information about the content data acquired by the information providing service, extract the data of the portion regarded as important from the content data,
The data extracted from the importance extraction condition and the data extracted based on the data acquired from the information providing service are integrated using a predetermined weight, and a portion regarded as important to be notified to the user is determined,
An image recording / reproducing apparatus, characterized in that image data included in the determined important part is included in the summary information. The recording / reproducing apparatus according to claim 1 or 2,
The summary information generated by the summary information generation means includes important part image data extracted from the content data, program information acquired from the content data, and information related to data acquired from the information providing service. A recording / playback apparatus characterized by that. In the recording / reproducing apparatus of any one of Claims 1-4,
When the summary information generating unit newly generates summary information of the content data recorded by the recording unit, the remaining capacity of the storage unit in which the recording unit records the content data is less than a predetermined amount. If
Sending summary information of content data recorded in the recording means and having already generated summary information to the communication partner device,
The recording / reproducing apparatus, wherein the control means deletes content data recorded in the recording means in accordance with operation information transmitted from the communication partner device. In the recording / reproducing apparatus of any one of Claims 1-4,
The control means enables setting the importance level for the content data recorded by the recording means in response to a user operation on the device that has transmitted the summary information. A recording / playback apparatus characterized by erasing content data accordingly. In the recording / reproducing apparatus of any one of Claims 1-3,
The summary information generating means changes the information content of the summary information according to the timing at which the summary information is transmitted. The recording / playback apparatus according to claim 7,
The timing for transmitting the summary information is as follows:
When the recording means records new content data,
Either when the recording means has a remaining storage capacity of the storage means for recording the content data, or when the request information is requested by a user operation on the communication partner device by a user operation Or a plurality of recording / playback apparatuses. In the recording / reproducing apparatus of any one of Claims 1-3,
The summary information generation means acquires predetermined performance information of a communication partner device that transmits the reservation information, and changes the information content of the summary information according to the predetermined performance information. Recording / playback device. In the recording / reproducing apparatus of any one of Claims 1-9,
When determining the communication partner device, the control means refers to past communication history information or pre-registered communication partner registration information to determine a device that transmits the summary information. When there are a plurality of communication partner candidates, the communication partner that is the candidate is requested to acquire predetermined information indicating that the device is to communicate, and the requested predetermined information is Based on the obtained result, it determines the communication partner device to which the summary information is transmitted,
The predetermined information indicating that the device is to be communicated includes information specified as a device to be communicated by a user operation, information indicating that the device is communicable, and whether the device is moving A recording / reproducing apparatus characterized by being one or a plurality of pieces of information indicating whether or not. A recording / playback system comprising a recording / playback device having a recording means for recording content data of a broadcast program, and a server device connected to the recording / playback device via a communication network,
The server device includes summary information generating means for generating summary information summarizing the content data based on a predetermined condition from the content data recorded by the recording means;
Means for transmitting the summary information generated by the summary information generation means to a device of a predetermined communication partner,
The recording / reproducing system, comprising: a control unit that deletes content data recorded in the recording unit in accordance with operation information transmitted from the device of the communication partner.

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