JP2007074374A - Distribution system and method of distribution - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To distribute a content in accordance with a reproduction specification which a user desires. <P>SOLUTION: In a distribution system 10 including a distribution server 20 for distributing a held content in response to a request and a media device 60 which requests the distribution server to distribute the content requested by the user and provides the content distributed from the distribution server to the user, the distribution server includes a reproduction specification conversion part 27 for converting a reproduction specification of the content in accordance with notification contents from the media device and a reproduction specification converted content distribution part 28 for distributing the reproduction specification converted content converted by the reproduction specification conversion part, and the media device includes a reproduction specification acquisition part 82 for acquiring a reproduction specification from the user and informing the distribution server of it, a reproduction specification converted content acquisition part 84 for acquiring the reproduction specification converted content distributed from the distribution server, and a reproduction specification converted content providing part 85 for providing the acquired reproduction specification converted content to the user. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a system for distributing content via a network and a content distribution method in the system.

  A system called Video On Demand that distributes and provides content requested by a user to the user is disclosed in Patent Document 1, and content distributed in response to a request is set top The content is output to a media device called a box (Set Top Box: hereinafter abbreviated as STB), the video signal of the content is output from the media device to the display device, and the video is displayed on the display device.

Incidentally, in addition to outputting the video signal of the content to the display device, the media device, as disclosed in Patent Document 2, the video signal from the VTR device, the video signal from the DVD device, and the video signal from the TV tuner. Is arbitrarily selected, and the function to output the selected video signal to the display device is provided. The video signal arbitrarily designated by the user can be output to the display device. The video can be viewed on a display device.
JP-A-8-88845 JP 2003-134417 A

  However, the above-described conventional distribution system does not distribute content according to a reproduction standard desired by the user, and distributes content according to a reproduction standard arbitrarily determined by a distribution source. Specifically, although the user wants to output a video signal having a display aspect ratio of 16: 9 to the display device, the reproduction standard having a display aspect ratio of 4: 3 arbitrarily determined by the distribution source. Content is distributed from the distribution source, the content distributed by the media device must be converted to a 16: 9 display aspect ratio playback standard, and the media device must have a function for that purpose. This was a problem.

  Therefore, in view of the above-described problems, an object of the present invention is to provide a distribution system and a content distribution method for distributing content in accordance with a reproduction standard desired by a user.

The present invention adopts the following configuration in order to solve the above points.
<Configuration 1>
A plurality of contents are held, a distribution server that distributes the held contents in response to a request, and a content acquisition request requested by a user is made to the distribution server, and the contents distributed from the distribution server are used. In the distribution system including the media device provided to the user, the distribution server converts the reproduction standard of the content according to the notification content from the media device, and the reproduction standard conversion unit converts the reproduction standard of the content. A reproduction standard conversion content distribution unit that distributes the reproduction standard conversion content, and the media device acquires the reproduction standard from a user and notifies the distribution server of the reproduction standard acquisition unit, and the distribution server distributes the reproduction standard conversion content distribution unit. A playback standard conversion content acquisition unit that acquires playback standard conversion content and provides the acquired playback standard conversion content to the user A reproduction standards converted content providing unit that, characterized in that it comprises a.

<Configuration 2>
The playback standard is characterized by the screen aspect ratio of the video to be played back.
<Configuration 3>
The reproduction standard is characterized by the effect specification of the reproduced sound.
<Configuration 4>
The reproduction standard is a compression specification of audio to be reproduced.

<Configuration 5>
The content providing unit converts the reproduction standard converted content into a video signal so as to provide the reproduction standard converted content by a display device connected with at least one of the connection standards of composite terminal connection, S terminal connection, and D terminal connection. And a signal processing unit for adding the information to the video signal generated by the signal processing unit so as to notify the display device of the aspect ratio information indicating the screen aspect ratio according to the connection standard. It is characterized by that.

<Configuration 6>
The content providing unit performs audio decoding of the reproduction standard conversion content and outputs the generated audio signal to the audio device so that the distributed reproduction standard conversion content is provided by the audio device connected to the media device. It comprises a part.

<Configuration 7>
A plurality of contents are held, a distribution server that distributes the held contents in response to a request, and a content acquisition request requested by a user is made to the distribution server, and the contents distributed from the distribution server are used. In a distribution method in a distribution system comprising a media device provided to a user, the media device acquires a playback standard designated by the user and notifies the distribution server of the playback standard, and the received distribution Convert the playback standard of the content requested by the user on the server, distribute the converted playback standard conversion content to the media device, acquire the playback standard conversion content to be distributed by the media device, and acquire the playback standard conversion The content is provided to the user.

  The reproduction standard from the user is acquired by the media device and notified to the distribution server. The distribution server converts the content reproduction standard according to the notification content. Then, by delivering the converted playback standard converted content to the media device and providing it to the user, the user can receive the content in the desired playback standard.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the distribution system 10 of the present invention holds a plurality of contents, and distributes the held contents in response to a request, and is connected to the distribution server 20 via a network 40. Media device that is referred to as VOD (Video On Demand), makes a distribution request for content requested by the user to the distribution server 20, and provides the content distributed from the distribution server 20 to the user 60.

  The distribution server 20 encodes the original sound video of the content to be distributed to generate audio data and image data, a content database 22 that holds the content data generated by the processing unit 21, and a network 40. The server communication unit 23 that performs communication control for communicating with the media device 60 via the server device, the content request acquisition unit 24 that acquires the requested content from the media device 60 via the server communication unit 23, and the media device 60 to be described later. A reproduction standard acquisition unit 25 that acquires the reproduction standard to be obtained via the server communication unit 23, and a content search unit 26 that searches the content database 22 for content data of the content received by the content request acquisition unit 24 and acquires the content data. And obtained by searching in the content search unit 26 A reproduction standard conversion unit 27 that performs conversion processing according to the reproduction standard acquired by the reproduction standard acquisition unit 25, and a reproduction standard content obtained by conversion by the reproduction standard conversion unit 27 via the server communication unit 23 A reproduction standard conversion content distribution unit 28 for distribution to the device 60.

  The encoding processing unit 21 encodes the original sound video to a standard called MPEG, and generates audio data and video data as content data. The content data generated by the encoding processing unit 21 is held in the content database 22 so that it can be searched.

  The server communication unit 23 performs communication control for performing IP (Internet Protocol) communication with the media device 60 via the network 40, and data (file) transmitted by this control is packetized, and the received packet is Data (file).

  The content request acquisition unit 24 acquires content information requested by the user from the media device 60 via the server communication unit 23. The content request acquisition unit 24 includes an authentication function (not shown) and an authentication database. The content request acquisition unit 24 obtains content information requested by the user from the media device 60 before the media device 60. User authentication, so-called user authentication is performed, and after the user authentication in the media device 60 is performed, a content acquisition request requested by the authenticated user in the media device 60 is acquired. Note that the content request acquisition unit 24 is provided to perform the above-described user authentication.

  The content search unit 26 searches the content database 22 for the content requested by the user acquired by the content request acquisition unit 24, acquires the corresponding content data, and sends the acquired content data to the reproduction standard conversion unit 27. Output.

The reproduction standard acquisition unit 25 acquires information on the reproduction standard designated by the user from the media device 60 via the server communication unit 23. Note that the playback standard acquisition unit 25 acquires the playback standard information specified by the user in the media device 60 before the content request acquisition unit 24 acquires the information of the content requested by the user.
Note that, based on the reproduction standard acquired by the reproduction standard acquisition unit 25, the conversion process of the content (content data) distributed to the user is performed by the reproduction standard conversion unit 27, and the converted content is distributed to the media device 60. The

  Here, the reproduction standard will be described. The playback standard is a standard related to a screen aspect ratio of video when content distributed to the media device 60 via the network 40 is played back by the media device 60, and a standard related to the effect specifications and compression specifications of audio to be played back. At least one of the above-mentioned video standard and audio standard is shown as a reproduction standard. Specifically, as a video standard, a general “4: 3 video”, a “letter box” that prevents trimming by putting black bands at the top and bottom, and a horizontal video that is compressed vertically to a ratio of 4: 3 One of the screen aspect ratio standards called “squeeze” that expands the left and right sides to return to the original size when displayed on a display device is shown. (Trademark) surround "and" dtS (registered trademark) "digital surround formats," MP3 (registered trademark) "," WMA (WindowsS (registered trademark) Media Audio) "," AAC (Advanced Audio Coding) ", etc. The compressed file format is shown.

  The reproduction standard conversion unit 27 is acquired by the content search unit 26 and the video conversion unit 271 that performs conversion processing on the image data in the content data acquired by the content search unit 26 according to the reproduction standard acquired by the reproduction standard acquisition unit 25. And an audio conversion unit 272 that performs conversion processing on the audio data in the content data.

  The video conversion unit 271 can reproduce the image data according to any one of three standards regarding the screen aspect ratio acquired by the playback standard acquisition unit 25, that is, any one of “4: 3 video”, “letterbox”, and “squeeze”. Convert to.

  The sound conversion unit 272 converts the sound data so as to be reproducible according to the sound-related standard acquired by the reproduction standard acquisition unit 25, that is, the sound effect specification such as “Dolby Surround” and “dtS”. Further, the reproduction standard conversion unit 27 compresses audio data in accordance with standards relating to audio compression specifications such as “MP3”, “WMA”, and “AAC”.

  By the way, the audio conversion unit 272 converts the audio data in the MPEG format generated by the encoding processing unit 21 and held in the content database 22 when converting the audio data according to the reproduction standard acquired by the reproduction standard acquisition unit 25. In the process, there is a case where the conversion cannot be performed so as to obtain a sufficient result. In such a case, a copy of the original sound image may be acquired, and the acquired original sound image may be converted.

  The reproduction standard conversion content distribution unit 28 synchronizes the image data converted by the video conversion unit 271 of the reproduction standard conversion unit 27 and the audio data converted by the audio conversion unit 272 of the reproduction standard conversion unit 27. Is generated as reproduction standard conversion content (reproduction standard conversion content data), and the reproduction standard conversion content is distributed to the media device 60 via the server communication unit 23.

  Connected to the media device 60 are a DVD (Digital VerSatil DiSk) device 61, a VTR device 62, and a display device 63 for outputting video from these devices.

By the way, the display device 63 of this embodiment incorporates a function as an acoustic device that outputs sound to the device, and outputs sound together with video.
Further, the media device 60 and the display device 63 can be connected with a plurality of connection standards. Specifically, the composite terminal connection via the composite terminal, the S terminal connection via the S terminal, and the D via the D terminal. Terminal connection is possible, and the media device 60 and the display device 63 are connected with at least one connection standard.

The media device 60 is connected to a router 64 for communicating with the distribution server 20 via the network 40. The router 64 is connected to a personal computer (hereinafter abbreviated as a PC) for using VOD. ) Is connected.
The PC 65 has a Web browser function, and the user can use the Web browser function to notify the distribution server 20 by specifying user authentication, a content acquisition request, and a reproduction standard.

  By the way, the above-mentioned Web browser function may be incorporated in the media device 60. Specifically, the display device 63 connected to the media device 60 performs display for the Web browser, and the user uses an input device (not shown). You may make it receive the operation input of a web browser. In the following description, the VOD can be used without using the PC 65 by incorporating the Web browser function in the media device 60 as described above.

  The media device 60 includes a selection unit 70 that selects a video signal to be output to the display device 63, and a first input / output control unit that performs control for acquiring a signal from the DVD device 61 and outputting the video signal to the display device 63. 71, a second input / output control unit 72 that performs control for obtaining a video signal from the VTR device 62 and outputting it to the display device 63, and a video signal that is generated based on the radio wave received from the TV radio wave. A TV tuner unit 73 for outputting to the display device 63, and a content acquisition unit 74 that performs control for acquiring content from the distribution server 20 and outputting a video signal generated based on the acquired content to the display device 63. And the first input / output control unit 71, the second input / output control unit 72, the TV tuner unit 73, and the like based on the selection instruction from the user. It comprises a selection unit 70 to start by selecting one of the content acquisition unit 74, a.

  The content acquisition unit 74 includes a client communication unit 80 that performs control for connecting to the network 40 via the router 64, a content request acquisition unit 81 that acquires information on content requested by the user from the user, Distributed from the distribution server 20, a reproduction standard acquisition unit 82 for acquiring reproduction standard information for reproducing content from the user, a reproduction standard holding unit 83 for holding the reproduction standard acquired by the reproduction standard acquisition unit 82, and the distribution server 20. A reproduction standard conversion content acquisition unit 84 that acquires reproduction standard conversion content, and a reproduction standard conversion that outputs a signal generated by signal processing the reproduction standard conversion content acquired by the reproduction standard conversion content acquisition unit 84 to the display device 63 And a content providing unit 85.

  The content request acquisition unit 81 and the reproduction standard acquisition unit 82 have a browser function. The content request acquisition unit 81 activates the browser function to acquire information on the content requested by the user from the user, and The content information is notified to the distribution server 20, and the reproduction standard acquisition unit 82 activates the browser function to acquire the reproduction standard from the user, and notifies the distribution server 20 of the reproduction standard.

  The content request acquisition unit 81 has a function of acquiring information necessary for user authentication by the distribution server 20 from the user and notifying the distribution server 20 of the information, and information required for user authentication. This acquisition notification is performed prior to the content information acquisition notification.

  The playback standard acquisition unit 82 acquires the playback standard from the user, notifies the acquired playback standard to the distribution server 20 via the client communication unit 80, and outputs it to the playback standard holding unit 83 to output the playback standard holding unit. 83.

  The reproduction standard conversion content acquisition unit 84 acquires the content converted from the reproduction standard distributed from the distribution server 20. Incidentally, the reproduction standard conversion content acquired by the reproduction standard conversion content acquisition unit 84 is packetized and distributed from the distribution server 20, and the reproduction standard conversion content acquisition unit 84 converts the packetized reproduction standard conversion content into data. Play standard conversion content (play standard conversion content data) is acquired.

  The reproduction standard conversion content providing unit 85 includes a signal processing unit 86 that performs signal processing of the reproduction standard conversion content converted into data by the reproduction standard conversion content acquisition unit 84, and a video signal generated by the signal processing unit 86. And an information adding unit 87 for adding information indicating the screen aspect ratio indicated by the reproduction standard held by the reproduction standard holding unit 83.

  When the signal processing unit 86 performs the signal processing of the reproduction standard conversion content data acquired by the reproduction standard conversion content acquisition unit 84, the signal conversion processing unit 86 decodes the encoded data as necessary, and then connects to the display device 63. , Specifically, a video signal for composite connection, a video signal for S terminal connection, and a video signal for D terminal connection.

  The connection standard for performing the conversion process is acquired by a connection standard acquisition unit (not shown). The connection standard acquisition unit acquires the connection standard by an input instruction from the user, or connects the display device 63 to the media device 60. The connection standard is acquired by the line detection function when connecting the cable.

  By the way, the conversion process described above is only performed according to the connection standard, and the conversion process according to the reproduction standard is not performed. That is, since the conversion process according to the reproduction standard has already been performed by the distribution server 20, the signal processing unit 86 is based on the reproduction standard converted content that has been converted by the distribution server 20 based on the reproduction standard. Thus, it is only necessary to perform signal processing according to the connection standard.

  In addition, when the signal processing of the playback standard conversion content is performed, the signal processing unit 86 may generate the signal to be generated by dividing it into a video signal and an audio signal, respectively. (Connection standard), that is, a signal to be generated may be separated into video and audio corresponding to a composite signal, an S terminal signal, a D terminal signal, and the like. In the present embodiment, the following description will be made assuming that the video signal includes video and audio for convenience.

  The information adding unit 87 acquires information indicating the screen aspect ratio as a reproduction standard from the reproduction standard holding unit 83. The information indicating the screen aspect ratio indicates any of “4: 3 video”, “letterbox”, and “squeeze”, and the information adding unit 87 converts the information indicating the screen aspect ratio into a signal processing unit. It is added to the signal generated at 86.

  For example, when information indicating the screen aspect ratio is added to the composite signal, the information adding unit 87 adds “4: 3 video”, “letter box”, and “20” to the 20th line and the 283rd line in the vertical blanking of the luminance signal. A 20-bit digital signal for identifying one of “squeeze” is added.

  In addition, when adding information indicating the screen aspect ratio to the S terminal signal, the information adding unit 87 identifies a voltage signal for identifying any one of “4: 3 video”, “letterbox”, and “squeeze”. The value is superimposed as an identification DC signal.

  In addition, when adding information indicating the screen aspect ratio to the D terminal signal, the information adding unit 87 controls the voltages of the lines 1, 2, and 3 at the D terminal to control “4: 3 video” and “letter box”. ] And information for identifying “squeeze” are added.

  As described above, the information adding unit 87 adds information for identifying the reproduction standard of the reproduction standard conversion content to the signal generated based on the reproduction standard conversion content acquired from the distribution server 20. As a result, a signal to which information for identifying the reproduction standard is added is output from the media device 60 to the display device 63, and the display device 63 identifies the reproduction standard based on the added information and uses the identified reproduction standard. Accordingly, an image based on a signal supplied from the media device 60 can be displayed on the screen.

  Since the signal output from the media device 60 is generated based on the content that has been converted in advance by the distribution server 20 in accordance with the reproduction standard, the media device 60 performs conversion processing in accordance with the reproduction standard. It is possible to directly output to the display device 63 without performing it.

  By the way, the display device 63 displays the video based on the signal supplied from the media device 60 as described above, and also performs audio output based on the signal.

  Next, the operation of the distribution system 10 of the present invention will be described. The sequence of the distribution server 20, the media device 60, and the display device 63 will be described with reference to FIG. 2, but the encoding process is performed based on the original sound image and the content data is already stored in the content database 22. The explanation is based on the assumption.

  The media device 60 and the display device 63 are connected by either composite terminal connection, S terminal connection, or D terminal connection, and the connection standard is acquired and held by a connection standard acquisition unit (not shown) by the input from the user or the line detection function. Is done.

  Next, the playback standard acquisition unit 82 of the media device 60 indicates the playback standard input from the user, that is, information indicating any one of “4: 3 video”, “letterbox”, and “squeeze” as the aspect ratio of the content. Is acquired as the reproduction standard, the acquired reproduction standard is held in the reproduction standard holding unit 83 (step S1), and notified to the distribution server 20 (step S2). Receiving the notification, the distribution server 20 acquires the reproduction standard by the reproduction standard acquisition unit 25 and notifies the media device 60 of the status (step S3).

  When the content request acquisition unit 81 of the media device 60 acquires information about the content requested by the user (step S4), the content request acquisition unit 81 outputs the acquired information to the distribution server 20 (step S5). When the content request acquisition unit 24 acquires content information requested by the user from the media device 60, the distribution server 20 searches the content database 22 based on the information acquired by the content search unit 26 and acquires content data. The acquired content data is output to the reproduction standard conversion unit 27. At this time, the status with respect to the content acquisition request is notified from the distribution server 20 to the media device 60 (step S6).

  When the reproduction standard conversion unit 27 performs a content data conversion process based on the reproduction standard acquired by the reproduction standard acquisition unit 25 to generate a reproduction standard conversion content, the reproduction standard conversion content is converted by the reproduction standard conversion content distribution unit 28. It is distributed to the media device 60 (step S7).

  When the reproduction standard conversion content is acquired by the reproduction standard conversion content acquisition unit 84 of the media device 60 (step S8), the signalization processing unit 86 of the reproduction standard conversion content provision unit 85 performs signal processing based on the connection standard. Signal is generated. The information adding unit 87 adds information corresponding to the reproduction standard held by the reproduction standard holding unit 83 to the signal generated by the signal processing unit 86 (step S9), and outputs the signal with the added information to the display device 63. To do.

  When receiving a signal from the media device 60, the display device 63 determines a reproduction standard based on the added information, and displays a video based on the signal based on the determined standard on the screen (step S10). The display device 63 also outputs a sound based on a signal from the media device 60, and the sound output is synchronized with the screen display.

  When the media device 60 receives a VOD stop request from a user through an input unit (not shown), the stop instruction is notified to the distribution server 20 (step S11), and the distribution from the distribution server 20 is stopped. At this time, the distribution server 20 notifies the media device 60 of a status indicating that the distribution stop has been accepted (step S12).

  As described above, according to the distribution system 10 of the present invention, the media device 60 acquires the reproduction standard from the user and notifies the distribution server 20 of the content, and the distribution server 20 converts the content in advance according to the reproduction standard, Since the playback standard converted content generated by the conversion is distributed to the media device 60, the media device 60 can receive the content according to the playback standard desired by the user.

  Furthermore, according to the distribution system 10 of the present invention, the distribution server 20 converts the content in advance according to the reproduction standard, and distributes the reproduction standard converted content generated by the conversion to the media device 60. The media device 60 does not need to perform conversion processing based on the reproduction standard for the reproduction standard conversion content. Accordingly, the distribution server 20 only needs to be provided with a function for performing conversion processing based on the reproduction standard, and each media device 60 as a client does not need to be provided with a function for performing conversion processing based on the reproduction standard. The manufacturing cost of the media device 60 to be used can be reduced.

  In the above description of the operation, an example of operation in which the media device 60 notifies the distribution server 20 of the reproduction standard acquired from the user prior to the content acquisition request from the media device 60 to the distribution server 20 will be described. However, the present invention is not limited to this. For example, after a content acquisition request is made from the media device 60 to the distribution server 20, the operation order is set so that a reproduction standard acquisition request is sent from the distribution server 20 to the media device 60. You may change suitably.

  In the above-described embodiments, the description has been mainly focused on the screen aspect ratio as the reproduction standard. However, the reproduction standard may be an audio compression specification, an effect specification, or the like.

It is a block diagram of the delivery system of this invention. It is a sequence diagram of the delivery system of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Distribution system 20 Distribution server 21 Encoding process part 22 Content database 23 Server communication part 24 Content request | requirement acquisition part 25 Playback standard acquisition part 26 Content search part 27 Playback standard conversion part 28 Playback standard conversion content distribution part 40 Network 60 Media apparatus 61 DVD Device 62 VTR device 63 Display device 64 Router 70 Selection unit 71 First input / output control unit 72 Second input / output control unit 73 TV tuner unit 74 Content acquisition unit 80 Client communication unit 81 Content request acquisition unit 82 Playback standard acquisition unit 83 Playback Standard holding unit 84 Playback standard converted content acquisition unit 85 Playback standard converted content providing unit 86 Signal processing unit 87 Information adding unit

Claims (12)

A plurality of contents are held, a distribution server that distributes the held contents in response to a request, and a content acquisition request requested by a user is made to the distribution server, and the contents distributed from the distribution server are used. In a distribution system comprising a media device provided to a user,
The distribution server
A reproduction standard conversion unit that converts the reproduction standard of the content in accordance with the notification content from the media device;
A reproduction standard conversion content distribution unit that distributes the reproduction standard conversion content converted by the reproduction standard conversion unit,
The media device comprises:
A reproduction standard acquisition unit for acquiring the reproduction standard from the user and notifying the distribution server;
A reproduction standard conversion content acquisition unit for acquiring the reproduction standard conversion content distributed from the distribution server;
A distribution system comprising: a reproduction standard conversion content providing unit that provides the acquired reproduction standard conversion content to a user.   The distribution system according to claim 1, wherein the reproduction standard is a screen aspect ratio of an image to be reproduced.   The distribution system according to claim 1, wherein the reproduction standard is an effect specification of audio to be reproduced.   The distribution system according to claim 1, wherein the reproduction standard is a compression specification of audio to be reproduced. The content providing unit
Signal conversion for converting the reproduction standard converted content into a video signal so as to provide the reproduction standard converted content by a display device connected with at least one of the connection standards of composite terminal connection, S terminal connection and D terminal connection A processing unit;
An information adding unit that adds the aspect ratio information indicating the screen aspect ratio to the video signal generated by the signal processing unit so as to notify the display device according to the connection standard. The distribution system according to claim 2. The content providing unit
A signal processing unit for performing audio decoding of the reproduction standard conversion content and outputting a generated audio signal to the audio device in order to provide the distributed reproduction standard conversion content by an audio device connected to the media device; 6. The distribution system according to claim 3, further comprising: A plurality of contents are held, a distribution server that distributes the held contents in response to a request, and a content acquisition request requested by a user is made to the distribution server, and the contents distributed from the distribution server are used. In a distribution method in a distribution system comprising a media device provided to a user,
Obtaining a playback standard designated by a user on the media device, and notifying the playback server of the playback standard;
Converting the reproduction standard of the content requested by the user in the distribution server that has received the notification,
Delivering the converted playback standard converted content to the media device;
A distribution method characterized in that a reproduction standard conversion content to be distributed is acquired by the media device, and the acquired reproduction standard conversion content is provided to a user.   8. The distribution method according to claim 7, wherein the reproduction standard is a screen aspect ratio of a video to be reproduced.   9. The distribution method according to claim 7, wherein the reproduction standard is an effect specification of audio to be reproduced.   9. The distribution method according to claim 7, wherein the reproduction standard is a compression specification of audio to be reproduced. In order to provide the playback standard conversion content distributed by the display device connected to at least one of the composite terminal connection, the S terminal connection, and the D terminal connection for the playback standard conversion content distributed to the media device, Performing video signal processing of the playback standard conversion content;
9. The aspect ratio information indicating the screen aspect ratio is added to the video signal generated by the video signal conversion processing so as to notify the display apparatus according to the connection standard. Delivery method. In order to provide the distributed playback standard conversion content with an audio device connected to the media device, the playback standard conversion content is audio-decoded and a generated audio signal is output to the audio device. 12. The distribution system according to claim 9 to claim 11.

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