JP4462373B2 - Recording medium and reproducing apparatus - Google Patents

Description

The present invention relates to a recording / reproducing technique for recording or reproducing information. In particular, the present invention relates to a recording / reproducing technique having a communication unit connected to a server.

Content such as music and video is recorded on a recording medium such as a CD or DVD (Digital Versatile Disc) and is handled in the market. In particular, in recent years, DVD videos of movie content often include making video clips, games, advertisement video clips of movies that will be released soon, and other service content such as materials. These service contents
It may become obsolete depending on the times.

Therefore, recently, content ID information recorded on a recording medium (hereinafter referred to as content ID).
Is recorded on the recording medium, and when the recording / reproducing apparatus reproduces the recording medium, the content ID is transmitted to the service server, and the content ID searched for based on the ID of the content is transmitted. A technique has been proposed in which additional information (for example, in the case of music content, the contents of lyrics, the profile of a singer) is received from the service server and the additional information is reproduced or recorded on the recording medium or the like. (For example, see Patent Document 1)

JP 2002-269900 A

In the above prior art, after the user searches in advance for the address of the transmission destination service server,
Access to the service server to acquire additional information related to the content.

However, it has not been considered that the user obtains additional information regarding the content recorded on the recording medium without searching for the address of the service server.
Further, in the above-described conventional technology, it is necessary to generate identification information from the content ID recorded on the recording medium and connect to a dedicated service server, and it is difficult to cope with new service development on the content provider side. It was.
Further, in the above-described prior art, there is a problem that additional information related to the content recorded on the recording medium is erroneously acquired even with additional information already owned by the owner of the recording medium. .

An object of the present invention is to solve the above conventional problems. It is another object of the present invention to provide a convenient information recording / reproducing technique or recording medium.

In order to achieve the above object, the present invention provides a recording medium on which image and sound information, identification information for identifying the image and sound information, and URL information related to the image and sound information are recorded. The URL is for specifying a position on the Internet of a server for providing a service by a content provider or the like, and is generally used on the Internet, so that the description in the present invention is clear. Indicated as URL. However, the URL is not limited to the URL as long as the location of the server providing the service on the network can be specified.

Also, reproduction means for reproducing a recording medium on which image / audio information and URL information related to the image / audio information are recorded, and image / audio information recorded on the recording medium based on the URL information reproduced by the reproduction means. It is assumed that the reproduction technique includes transmission means for transmitting identification information for identifying the image to a server having the URL and reception means for receiving image / audio information corresponding to the identification information from the server.

Also, a reproducing means for reproducing content information, a storage means for storing identification information of the reproduced content information, a transmitting means for transmitting a plurality of identification information stored in the storage means, and the plurality of transmitted identifications Among information related to information, a reproduction technique for receiving information that is not content information indicated by each of the plurality of pieces of identification information.

The present invention can provide an easy-to-use information recording / reproducing technique or recording medium.

Embodiments of the present invention will be described below.
In the present embodiment, the recording medium is described as being a DVD. However, the present invention is not limited to this, and a hard disk, MD (MINI DISC), CD (CONPAC) is not limited thereto.
(T DISC), magnetic disk, semiconductor memory, and other recording media for recording information.

First, FIG. 1 is a block diagram showing a connection between a playback apparatus and a server which is an embodiment to which the present invention is applied.
In FIG. 1, the playback device 100 is connected to a server 101 and a display device 103 via a network 102. The display device 103 may be integrated with the playback device 100. A system control circuit 104 in the playback apparatus 100 controls the operation of the playback apparatus 100.

The system control circuit 104 includes a CPU and a management database (described in the second embodiment).
And a database control circuit 109 having a memory in which is recorded. The system control circuit 104 controls various devices and processes for reproduction, and monitors the state of the power supply and peripheral devices. Note that the memory included in the database control circuit 109 may be a nonvolatile memory or a flash memory, or may be a portable recording medium such as an optical disk, a magnetic disk, a magneto-optical disk, or a semiconductor memory.

The medium control circuit 105 performs data read control from the recording medium 106. The reproduction control circuit 107 converts the data read by the recording medium control circuit 105 into a displayable format, and outputs an OSD (On Screen Display) to the display device 103 in a superimposed manner as necessary. . The network control circuit 108 connects to the server 101 via the network 102 in accordance with a URL read from the recording medium 106 or a URL registered in advance in the device, and performs data transmission / reception control. The database control circuit 109 registers and manages information such as content IDs and content URLs read from the recording medium 106 in the memory.

FIG. 2 is a diagram showing an example of the data structure recorded on the recording medium 106 handled by the playback apparatus as an embodiment to which the present invention is applied.

The recording medium 106 has a disk ID 210 and a disk URL 211. In FIG. 2, reference numeral 200 denotes a content ID. Generally, a unique ID is assigned to a content recorded on a recording medium and recorded. The content ID is transmitted to the server, and the server side identifies the user's content and uses it to provide information tailored to the user. Or
Based on the information received from the server, it is possible to realize a UI (User Interface) which is compared with the content ID 200 on the playback device side and presented to the user if there is duplicate information or the like. 201 is content UR
L, and record the connection destination information for the content provider to provide the service. 202
Indicates management data and records information for managing contents and the like described below. Reference numeral 203 denotes main content. For example, if the content is a movie, the main contents are recorded. This is MPEG (Moving Picture Expert) if it is video / audio information.
(Group) method and the like may be compressed and recorded. 204 indicates sub-contents. For example, in the case of movie content, director's cut (a collection of scenes that were not adopted during editing of the main movie), making (contents that recorded the process of shooting or creating the main movie), N
Edition G (Actress Mistake Scene Collection) is recorded. Reference numeral 205 denotes other data, in which data used for content-specific menu display, such as additional information related to the content, and data selected and reproduced from the menu are recorded.

FIG. 2 shows a configuration when two contents are included. There are cases where one content is recorded on the disc and cases where two or more contents are recorded.

FIG. 3 is a diagram showing a processing flow when content is played back by the playback apparatus according to the embodiment to which the present invention is applied and when the server is connected. (Example 1)
FIG. 3 (1) shows a processing flow of content playback on the playback device and connection to the server.
FIG. 3 (2) shows a processing flow at the time of connection at the server.

In FIG. 3A, in step 300, the recording medium control circuit 105 displays the recording medium 106.
The content ID 200 is read from.

Next, in step 301, the recording medium control circuit 105 starts content from the recording medium 106.
URL 201 is read. Thereafter, in step 304, the system control circuit 104 performs normal reproduction processing in the reproduction control circuit 107 from the data read by the recording medium control circuit 105.

In step 305, the system control circuit 104 determines whether or not there is a request to reproduce or acquire the service content.
The network control circuit 108 connects to the connection destination indicated by the content URL 201.
The request to reproduce or acquire the service content is, for example, a recording medium (FIG. 2).
The information indicating that the service content should be reproduced and the information indicating that the service content should be acquired are recorded in the area 205 and the like, and the user content may be determined by reproducing the information. It is good also as a structure which makes a request | requirement input.

Next, in step 307, the network control circuit 108 transmits the content ID 200 to the server 101, and in step 308, the network control circuit 108 receives the service content provided from the server 101. In step 309, the data received by the system control circuit 104 from the service content received or being received in step 308 as appropriate is sent to the reproduction control circuit 107 to reproduce the service content.

3B, in step 310, the server 101 receives the content ID 200 transmitted from the playback apparatus 100 in step 307.

Next, in step 313, the content I received from the playback apparatus 100 by the server 101 is displayed.
Based on D200, it is determined whether or not service content to be transmitted has already been registered.
If the service content is the same as the service content corresponding to the content ID already registered in the playback device 100, the server 101 does not transmit the service content. If not registered, the process proceeds to the following.

In step 311, the server 101 selects service content corresponding to the content ID 200, and reads or generates information for transmission to the playback device 100. Thereafter, in step 312, the server 101 transmits the service content to the playback device 100.

As described above, the user can connect to the service providing site without performing complicated operations such as inputting a connection destination URL in order to obtain service content. Further, the content providing side can set and provide a URL of a dedicated service providing site for each content, and can easily provide an easy-to-use service specialized for the user who purchased the content. For example, even if the user is playing old content,
It is possible to provide service content that matches the time of playback and the type of content, and users can use service content that matches the times and trends at any time. Can contribute to improvement.

In this embodiment, not only the content ID recorded on the recording medium but also additional information such as a URL (Uniform Resource Locator) for connecting to the server is read, and the function to connect to the server and the content ID are transmitted. By having the function to do so, it becomes easy for the content providing side to determine and provide service information suitable for the user.

Next, a second embodiment will be described. In the present embodiment, a processing flow when content is played back on the playback device and when a server is connected will be described.

In FIG. 5 (1), in step 500, the recording medium control circuit 105 performs the recording medium 10.
6 reads the content ID 200. Subsequently, in step 501, the recording medium control circuit 105 reads the content URL 201 from the recording medium 106. In the second embodiment, in step 502, the database control circuit 109 determines that the content ID 200 or content
When it is determined that the URL 201 is not registered in the management database recorded in the memory included in the database control circuit 109, the database control circuit 109 performs registration processing in the database in step 503. Thereafter, in step 504, normal reproduction processing is performed.

Thereafter, the processes in steps 504 and 505 are the same as those in steps 305 and 306 in FIG.

Steps 506 to 509 are the same as steps 306 to 309 in FIG. 3, and steps 510 to 512 are the same as steps 310 to 312 in FIG.

In FIG. 5, step 520 is executed as an additional step between step 505 and step 506. In step 520, the system control circuit 104 determines whether service content has already been received. If it has already been received, steps 506 to 508 are skipped, and service content that has already been received is reproduced in step 509. If not received, step 506 to step 509
Execute.

The content ID registered in the management database is not limited to the content ID of the content read from the recording medium 106, and the content ID of the content acquired through a network or the like may be registered. Moreover, it is good also as a structure which a user registers content ID. In this way, it is possible to register more content that the user has already auditioned or already owned.

In this embodiment, when the playback apparatus transmits the content ID 200 to the server, the playback apparatus 100 may transmit another content ID registered in the management database to the server. .

Then, the server 101 also selects, reads or generates service content related to the other content ID, and transmits it to the playback device. This is a configuration in which a plurality of content IDs are transmitted to the server, and the content IDs of the contents of the mounted recording medium
It is not necessary to distinguish 200 from other content IDs. With this configuration, more service content can be transmitted from the server, and the playback device can receive it.

In addition, the server 101 selects service content corresponding to the content ID 200, and searches for a correspondence relationship between the other content ID and the selected service content before transmitting the selected service content to the playback device. To do. If the service content related to the content with the other content ID is to be transmitted, it is determined that the service content is the service content of the content with the content ID already registered in the playback device. Then, the service content is not transmitted to the playback device.

For example, the first movie of a movie is recorded on the recording medium 106, and the content ID 200 is 1.
Suppose that it is the first movie. On the other hand, it is assumed that the content ID of the second movie has already been registered in the management database. In this case, the playback device uses the content ID
In addition to 200, the content ID of the second movie is transmitted to the server.

Then, the server 101 transmits the service content for the second movie as the service content corresponding to the content ID 200.
Since the content ID of the second movie is registered, the service content for the second movie is not transmitted to the playback device 100. As a result, it is possible to reduce the server from transmitting the service content of the content with the content ID already registered in the playback device to the playback device.

As described above, the user can connect to the service providing site without performing complicated operations such as inputting a connection destination URL in order to obtain service content. In addition, the content provider can set and provide a URL for a dedicated service provider site for each content, and can easily provide an easy-to-use service specialized for users who have purchased the content. In addition, it is possible to provide user-friendly service content by utilizing content information owned by the user. This may be provided as a server function or a playback device function.

FIG. 4 is a screen example showing a service screen at the time of connection between a playback apparatus and a server which is an embodiment to which the present invention is applied.

In FIG. 4, reference numeral 400 shows an example of a content purchase service screen provided via a network. 401 indicates the title of the service screen, and a title that directly represents the service content of the screen is displayed. Here is the content purchase service screen,
“Content list” is displayed. Reference numeral 402 denotes a button for shifting to a screen for purchasing an item selected by the user. Reference numeral 403 denotes a list of titles related to content provided by the service provider. Reference numeral 404 denotes an operation explanation display on the currently displayed screen. Reference numeral 405 denotes an icon display indicating that the title is already owned by the user. Note that the content already owned by the user may not be displayed as a title, or may not be received from the server.

Reference numerals 406 and 407 denote check boxes for setting a title to be purchased by the user. 406 indicates that it is not a purchase target, and 407 indicates that it is a purchase target.

In this way, by managing a plurality of content IDs in a database, even in a closed service that has been conventionally available only for sites that have been used in the past, according to this embodiment, the user can access any service site. Even when it is used for the first time, it can be used with the above user-friendly UI. Further, the content providing side can also provide a service or the like for presenting recommended titles according to tastes to users who use for the first time.

In the present embodiment, the configuration in which the playback apparatus registers the management database has been described. However, the same effect can be obtained when the server registers the management database.

As described above, according to the present embodiment, not only the content ID recorded on the recording medium but also the function of reading additional information such as a URL for connecting to the server, connecting to the server, and the function of transmitting the content ID By having this, it becomes easy for the content providing side to determine and provide service information suitable for the user. Also, by registering and managing the content ID and other additional information in the database, the content provider can utilize it for the development of various services.

Each circuit in the playback device 100 is not limited to hardware as an electronic circuit, but is stored as software in a memory, and the system control circuit 104 is a CPU.
The software may be configured to be executed as follows.

1 is a system diagram illustrating a connection form between a playback apparatus and a server according to an embodiment of the present invention. It is a figure which shows the recording data structure of the content read with the reproducing | regenerating apparatus which is embodiment of this invention. It is a figure which shows the reproducing apparatus which is 1st embodiment of this invention, and the processing flow of a server. It is an example of a service screen provided by the reproducing | regenerating apparatus and server which are embodiment of this invention. It is a figure which shows the reproducing apparatus which is 2nd embodiment of this invention, and the processing flow of a server.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Playback apparatus 101 Server 102 Network 103 Display apparatus 104 System control circuit 105 Recording medium control circuit 106 Recording medium 107 Playback control circuit 108 Network control circuit 109 Database control circuit

Claims (4)

A playback device for playing back video and audio content recorded on a recording medium,
The recording medium includes a first image / audio content, first identification information for identifying the first image / audio content, and an acquisition destination of the second content related to the first image / audio content. , Indicating additional information indicating either the first state in which the second content is acquired or the second state in which the second content is acquired and output, and second identification information for identifying the recording medium Is recorded,
Reproducing means for reproducing the recording medium;
Network communication means;
Output means for outputting content reproduced by the reproduction means or content acquired by the network means;
Control means for controlling the reproduction means and network communication means,
When the additional data reproduced by the reproducing means is additional data indicating the first state , the control means is indicated by the additional data and the URL information obtained by reproducing the network communication means by the reproducing means. The second content indicated by the URL information is connected to the acquisition destination of the second content, and the first identification information or the second identification information reproduced by the reproduction means is transmitted to the acquisition destination. Acquiring the second content corresponding to the first identification information or the second identification information from the acquisition source of
When the additional data reproduced by the reproducing means is additional data indicating the second state , the control means is indicated by the additional data and the URL information obtained by reproducing the network communication means by the reproducing means. The second content indicated by the URL information is connected to the acquisition destination of the second content, and the first identification information or the second identification information reproduced by the reproduction means is transmitted to the acquisition destination. The reproduction apparatus is characterized in that the second content corresponding to the first identification information or the second identification information is obtained from the acquisition source and output from the output means. A playback method for playing back video and audio content recorded on a recording medium,
The recording medium includes a first image / audio content, first identification information for identifying the first image / audio content, and an acquisition destination of the second content related to the first image / audio content. , Indicating additional information indicating either the first state in which the second content is acquired or the second state in which the second content is acquired and output, and second identification information for identifying the recording medium Is recorded,
Reproducing the recording medium;
Communicating over a network;
Outputting content reproduced from the recording medium or content acquired via the network,
When the additional data reproduced from the recording medium is additional data indicating the first state, the second content indicated by the URL information reproduced from the recording medium via the network by the additional data. The first identification information or the second identification information reproduced from the recording medium is transmitted to the acquisition destination, and the acquisition destination of the second content indicated by the URL information is transmitted. Obtaining the second content corresponding to the first identification information or the second identification information;
When the additional data reproduced from the recording medium is additional data indicating the second state, the second content indicated by the URL information reproduced from the recording medium via the network by the additional data. The first identification information or the second identification information reproduced from the recording medium is transmitted to the acquisition destination, and the acquisition destination of the second content indicated by the URL information is transmitted. A reproduction method characterized by acquiring and outputting the second content corresponding to the first identification information or the second identification information. A recording method for recording video and audio content on a recording medium,
First image and sound content;
First identification information for identifying the first image and audio content;
URL information indicating an acquisition destination of the second content related to the first image and audio content;
Additional data indicating either the first state of acquiring the second content or the second state of acquiring and outputting;
Recording the second identification information for identifying the recording medium on the recording medium;
When the additional data is additional data indicating the first state, a playback device that plays back the first video / audio content is connected to the acquisition source of the second content indicated by the URL information, and The first identification information or the second identification information is transmitted to the connection destination, and the first identification information or the second identification information is transmitted from the acquisition source of the second content indicated by the URL information. Used to obtain the corresponding second content,
When it is the additional data indicating the second state, a playback device that plays back the first video and audio content is connected to the acquisition source of the second content indicated by the URL information, and the first identification information Alternatively, the second identification information is transmitted to the connection destination, and the second identification information or the second identification information corresponding to the second identification information is obtained from the acquisition destination of the second content indicated by the URL information. Recording method characterized by being used for acquiring and outputting the content of A recording medium on which video and audio content is recorded,
First image and sound content;
First identification information for identifying the first image and audio content;
URL information indicating an acquisition destination of the second content related to the first image and audio content;
Additional data indicating either the first state of acquiring the second content or the second state of acquiring and outputting;
Second identification information for identifying the recording medium is recorded,
When the additional data is additional data indicating the first state, a playback device that plays back the first video / audio content is connected to the acquisition source of the second content indicated by the URL information, and The first identification information or the second identification information is transmitted to the connection destination, and the first identification information or the second identification information is transmitted from the acquisition source of the second content indicated by the URL information. Used to obtain the corresponding second content,
When it is the additional data indicating the second state, a playback device that plays back the first video and audio content is connected to the acquisition source of the second content indicated by the URL information, and the first identification information Alternatively, the second identification information is transmitted to the connection destination, and the second identification information or the second identification information corresponding to the second identification information is obtained from the acquisition destination of the second content indicated by the URL information. A recording medium used for acquiring and outputting the content of

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