JP4632079B2 - CONTENT DISTRIBUTION SYSTEM, CONTENT DISTRIBUTION DEVICE AND METHOD, CONTENT RECEPTION DEVICE AND METHOD, CONTENT REPRODUCTION DEVICE AND METHOD, RECORDING MEDIUM, AND PROGRAM - Google Patents

Description

  The present invention relates to a content distribution system, a content distribution device and method, a content reception device and method, a content reproduction device and method, a recording medium, and a program. Content distribution system, content distribution device and method, content reception device and method, content that can acquire information for acquiring related content based on the information, and based on the information The present invention relates to a playback apparatus and method, a recording medium, and a program.

  Conventionally, broadcasters that distribute television broadcasts for free are not collecting viewing fees from viewers, but by obtaining advertising revenues from advertisers (sponsors), content (so-called programs) ) Is produced and operated. In addition, for advertisers, television broadcasting is the largest advertising medium, and a great advertising effect can be expected for an unspecified number of viewers.

  In general, since a production cost is invested by an advertiser for a content with a higher audience rating, a broadcaster can produce high-quality content. This is based on the premise that a program with a higher audience rating has a larger number of viewers watching commercials. In other words, a program that has more viewers watching commercials can spend more on content production.

  By the way, the viewer does not necessarily watch the program in real time, but may play back the program recorded on the video tape at his / her favorite time. However, there are overwhelmingly more viewers watching the program in real time than viewers who are recording the program on videotape. Even if the viewer is recording the videotape, the CM will be skipped. There were thought to be few people. This is because in the case of a video tape, random playback such as skipping CMs was difficult.

  From the above, until now, it was possible to produce content by calculating and collecting the sponsor fee considering only the audience rating of viewers watching programs in real time.

  In recent years, with the advent of HDD (Hard Disk Drive) recorders, more users have recorded, played back, and watched programs than recorded and watched in real time regardless of whether or not the program is viewed. In addition, since the operation of skipping commercials has become relatively easy, the number of users who view commercials has decreased. This raises concerns about the effectiveness of commercials, which contributes to advertisers leaving the program. In other words, the cost of creating content has been reduced due to the absence of sponsors, which has led to a situation where the quality and quantity of content can be reduced.

  Therefore, for example, in order to enable viewers to actively watch commercials and increase the advertising effect of sponsors, CM points are accumulated when viewers watch commercials, and the accumulated CM points Depending on the situation, there is one that can receive a service from the sponsor (see, for example, Patent Document 1).

JP 2003-46986 A

  However, in the technique of Patent Document 1, it is necessary for the sponsor to provide a new service corresponding to the CM point, and there is a problem that the burden on the sponsor side increases.

  In addition, a system that can acquire new content (for example, present information of a program) from the viewed content and the feature amount of the CM, instead of forcibly viewing the CM by means of point accumulation. Was not considered.

  The present invention has been made in view of such a situation, and provides a system capable of acquiring new content based on the viewed content and the feature amount of the CM.

Content delivery system of the present invention, the content distribution apparatus for distributing content which ads are inserted, and the contents delivery system comprising a content receiving device that receives the content, the content delivery apparatus, of the content, the insertion Storage means for storing related content related to the advertisement excluded content obtained by excluding the inserted advertisement , and the feature amount of the advertisement inserted in the content and a part of the advertisement excluded content existing before and after the advertisement. First calculation means for calculating, address information of related content stored in the storage means, and registration means for registering the feature quantity calculated by the calculation means in association with each other, and first distribution for distributing the contents And a first request from the content receiving device, Searches the address information registered in the database by recording means, a second distributing means for distributing the associated address information obtained by the search, in response to a second request from the content receiving device, stored in the memory means A third distribution means for searching for related content that has been retrieved and distributing the related content obtained by the search , wherein the content receiving device includes a first receiving means for receiving the content, and a first receiving means. An output means for outputting the received content; a second calculation means for calculating a feature amount of the advertisement inserted into the content output by the output means and a part of the advertisement excluded content existing before and after the advertisement ; First request means for requesting delivery of address information of related content based on the feature amount calculated by the second calculation means; A second receiving means for receiving the address information distributed in response to the request by the first requesting means, and a second request for distributing related contents based on the address information received by the second receiving means. Requesting means, and third receiving means for receiving related content distributed in response to a request by the second requesting means.

The content distribution device of the present invention is a content distribution device that distributes content in which an advertisement is inserted, and stores related content related to the advertisement excluded content obtained by excluding the inserted advertisement among the content. Storage means, a calculation means for calculating a feature amount for a part of the advertisement-excluded content existing before and after the advertisement inserted in the content, address information of related content stored in the storage means, and Distributing address information of related content based on the feature quantity calculated by the registration means for associating and registering the feature quantity calculated by the calculation means in the database, the first delivery means for delivering the content, and the feature receiving apparatus requesting, in response to the first request from the content receiving apparatus, in the registration means Ri searches the address information registered in the database, based on the second distribution means and the address information received by the distributed content receiving apparatus in response to the first request to deliver the obtained address information by the search In response to the second request from the content receiving apparatus that requests the distribution of the related content, the third content is searched for the related content stored in the storage unit, and the related content obtained by the search is distributed. Means.

  A storage means for generating key information for encrypting the related content and an encryption means for encrypting the related content based on the key information generated by the generation means can be provided. Can store the related content encrypted by the encryption means.

  The registration unit further registers the key information generated by the generation unit in association with the address information and the feature amount in the database, and the second distribution unit further distributes the key information registered in the database. can do.

An authentication means for performing an authentication process with the content receiving apparatus can be further provided. When authenticated by the authentication means, the second distribution means has address information corresponding to the feature amount included in the first request. And address information obtained by the search can be distributed.

The third distribution means can search related content according to address information included in the second request, and distribute the related content obtained by the search .

The content distribution method of the present invention is a content distribution method of a content distribution apparatus that distributes content in which an advertisement is inserted, and relates to advertisement excluded content obtained by excluding the inserted advertisement from the content . A storage step for storing related content, a calculation step for calculating a feature amount for a part of the advertisement inserted into the content and a part of the advertisement excluded content existing before and after the advertisement , and the related content stored by the processing of the storage step Based on the address information and the registration step of registering the feature amount calculated by the processing of the calculation step in the database, the first distribution step of distributing the content, and the feature amount calculated by the content receiving device, Request distribution of related content address information In response to the first request from the content receiving apparatus, and retrieves the address information registered in the database by the process of registration step, a second distribution step of distributing the address information obtained by the search, first Based on the address information distributed in response to the request and received by the content receiving device, the association stored by the processing in the storing step in response to the second request from the content receiving device that requests the distribution of the related content A third distribution step of searching for content and distributing related content obtained by the search .

The program recorded on the first recording medium of the present invention is a program for causing a computer to perform content distribution processing of a content distribution device that distributes content in which an advertisement is inserted . A storage step of storing related content related to the advertisement excluded content obtained by excluding the inserted advertisement , the feature amount of the advertisement inserted into the content , and a part of the advertisement excluded content existing before and after the advertisement A registration step for associating the address information of the related content stored by the processing of the storage step and the feature amount calculated by the processing of the calculation step with each other and registering it in the database, and a first for distributing the content a distribution step, is calculated by the content receiving apparatus Based on the feature amount, and requests the delivery of address information of the related content, in response to the first request from the content receiving apparatus, and retrieves the address information registered in the database by the processing of the registration step, obtained by the search A second distribution step for distributing the received address information, and a second reception step from the content reception device that requests distribution of related content based on the address information distributed in response to the first request and received by the content reception device. In response to the second request, the related content stored by the processing of the storage step is searched, and the content distribution processing including the third distribution step of distributing the related content obtained by the search is performed by the computer.

A first program of the present invention is a program for causing a computer to perform content distribution processing of a content distribution apparatus that distributes content in which an advertisement is inserted, and excludes the inserted advertisement from the content Storing a related content related to the advertisement excluded content obtained in the above, a calculating step of calculating a feature amount of the advertisement inserted into the content and a part of the advertisement excluded content existing before and after the advertisement , A registration step of associating and registering the address information of the related content stored in the storage step process and the feature amount calculated in the calculation step process in the database, a first distribution step of distributing the content, and a content receiving device Based on the feature value calculated by It requests distribution of content of the address information in response to a first request from the content receiving apparatus, and retrieves the address information registered in the database by the processing of the registration step, to deliver an address information obtained by the search In response to a second distribution step and a second request from the content receiving device that requests distribution of related content based on address information distributed in response to the first request and received by the content receiving device, The related content stored by the processing of the storage step is searched, and the content distribution processing including the third distribution step of distributing the related content obtained by the search is performed by the computer.

The content receiving device of the present invention is a content receiving device that receives content in which an advertisement is inserted, and includes a first receiving unit that receives content distributed from the content distribution device, and a first receiving unit. An output means for outputting received content, an advertisement inserted in the content output by the output means , and an advertisement exclusion content obtained by excluding the inserted advertisement out of the contents, Based on the feature quantity calculated by the calculation means for the part of the advertisement excluded content existing before and after, and the feature quantity calculated by the calculation means, the address information of the related content related to the advertisement excluded content is sent to the content distribution device. First request means for requesting distribution, and has been distributed in response to a request by the first request means A second receiving means for receiving the dress information; a second requesting means for requesting the content distribution apparatus to distribute related content based on the address information received by the second receiving means; And third receiving means for receiving related content distributed in response to a request from the requesting means.

  The second receiving means further receives key information for decrypting the related content, and the third receiving means receives the encrypted related content, and the encrypted information received by the third receiving means is received. Decryption means for decrypting the related content based on the key information received by the second reception means can be further provided.

  An authentication unit for performing an authentication process with the content distribution apparatus can be further provided. When authenticated by the authentication unit, the second receiving unit has been distributed in response to a request by the first request unit. Address information can be received.

A synthesizing unit for synthesizing the advertisement excluded content included in the content output by the output unit and the related content received by the third receiving unit may be further provided.

A recording unit for recording the content received by the first receiving unit and a related content received by the third receiving unit; and a reproducing unit for reproducing the content recorded in the recording unit. The calculating means calculates the feature amount of the advertisement inserted in the content reproduced by the reproducing means and a part of the advertisement excluded content existing before and after the advertisement , and the first request means Requests the distribution of the address information based on the feature amount calculated by the calculating means, and the second receiving means receives the address information distributed in response to the request by the first requesting means, The second requesting unit requests distribution of the related content based on the address information received by the second receiving unit, and the third receiving unit receives the second requesting unit. Related content which is distributed in response to requests by may be adapted to receive.

A synthesizing unit for synthesizing the advertisement excluded content included in the content reproduced by the reproducing unit and the related content received by the third receiving unit may be further provided.

  The recording unit may further include a determination unit that determines whether or not related content corresponding to the feature amount is already recorded. The determination unit determines that the related content has already been recorded. In this case, the first requesting unit can be configured not to make a distribution information address request.

When it is determined that the related content corresponding to the feature amount has already been recorded, the determination unit further determines whether it is possible to acquire related content that is newer than the related content that has already been recorded. Can be.

  When it is determined by the determination means that it is possible to acquire new related content, the first request means requests distribution of address information of the new related content based on the feature amount, and the second request content The receiving unit receives the address information of the new related content distributed in response to the request by the first request unit, and the second request unit distributes the new related content based on the address information of the new related content. The third receiving means receives the new related content distributed in response to the request by the second requesting means, and the recording means receives the third receiving means from the already recorded related content. Can be updated to new related content received.

The content reception method of the present invention is a content reception method of a content reception device that receives content in which an advertisement is inserted, and includes a first reception step of receiving content distributed from the content distribution device; An output step for outputting the content received by the processing of the receiving step, an advertisement inserted in the content output by the processing of the output step , and an advertisement obtained by excluding the inserted advertisement from the content a exclusions, and calculating a characteristic amount for a portion of the ad exclusion content present before and after the advertisement, based on the feature amount calculated by the process of calculation steps, to the content distribution apparatus, ad exclusion Request for distribution of related content address information related to content Based on the requesting step, the second receiving step for receiving the address information distributed in response to the request by the processing of the first requesting step, and the address information received by the processing of the second receiving step, A second requesting step for requesting the content distribution apparatus to distribute related content, and a third receiving step for receiving the related content distributed in response to the request by the processing of the second requesting step.

The program recorded on the second recording medium of the present invention is a program for causing a computer to perform content reception processing of a content receiving device that receives content in which an advertisement is inserted. A first receiving step for receiving the delivered content, an output step for outputting the content received by the processing of the first receiving step, and an advertisement inserted in the content output by the processing of the output step , And a calculation step for calculating a feature amount of a part of the advertisement excluded content that is obtained by excluding the inserted advertisement among the contents and is present before and after the advertisement, and a process of the calculation step based on the calculated feature quantity, to the content distribution apparatus, ad exclusion co A first requesting step for requesting distribution of address information of related content related to the content, a second receiving step for receiving address information distributed in response to a request by the processing of the first requesting step; Based on the address information received by the processing of the second receiving step, the content is distributed in response to a request by the second requesting step for requesting the content distribution device to distribute related content and the processing of the second requesting step. And causing the computer to perform content reception processing including a third reception step of receiving the related content.

A second program of the present invention is a program for causing a computer to perform content reception processing of a content receiving device that receives content in which an advertisement is inserted, and receives content distributed from the content distribution device. A first reception step, an output step for outputting the content received by the process of the first reception step, an advertisement inserted in the content output by the process of the output step , and the content inserted A calculation step for calculating a feature amount of a part of the advertisement exclusion content existing before and after the advertisement, and a feature amount calculated by the processing of the calculation step. Te, to the content delivery apparatus, associated with the ad exclusion content-related co A first requesting step for requesting distribution of address information of the content, a second receiving step for receiving address information distributed in response to a request by the processing of the first requesting step, and a second receiving step Based on the address information received by the processing, the second request step for requesting the content distribution apparatus to distribute the related content, and the related content distributed in response to the request by the processing of the second request step Causing the computer to perform content reception processing including a third reception step of receiving.

The content playback apparatus of the present invention is a content playback apparatus for playing back content recorded on a recording medium and having an advertisement inserted therein. The content playback apparatus includes: a reading unit that reads content recorded on the recording medium; An output means for outputting the read content, an advertisement inserted in the content output by the output means , and an advertisement exclusion content obtained by excluding the inserted advertisement among the contents, Calculating means for calculating a feature amount of a part of the advertisement excluded content existing before and after, and address information of related content related to the advertisement excluded content based on the feature amount calculated by the calculating means. The first request means for requesting the distribution of the request and the request by the first request means A second receiving means for receiving the address information distributed in the same time, and a second request for requesting the content distribution apparatus to distribute related contents based on the address information received by the second receiving means. Means and third receiving means for receiving related content distributed in response to a request by the second request means.

  The second receiving means further receives key information for decrypting the related content, and the third receiving means receives the encrypted related content, and the encrypted information received by the third receiving means is received. Decryption means for decrypting the related content based on the key information received by the second reception means can be further provided.

  An authentication unit for performing an authentication process with the content distribution apparatus can be further provided. When authenticated by the authentication unit, the second receiving unit has been distributed in response to a request by the first request unit. Address information can be received.

A synthesizing unit that synthesizes the advertisement excluded content included in the content output by the output unit and the related content received by the third receiving unit may be further provided.

The content playback method of the present invention is a content playback method of a content playback device that plays back a content that is recorded on a recording medium and into which an advertisement is inserted, and that reads the content recorded on the recording medium; An output step for outputting the content read by the processing of the reading step, an advertisement inserted in the content output by the processing of the output step, and the inserted advertisement out of the content are obtained a ad exclusion content, based on the feature amount calculated by the process of calculation steps and, calculating a characteristic amount for a portion of the ad exclusion content present before and after the advertisement, to the content delivery apparatus, ad address information of the related content that is relevant to exclude content Received by the processing of the first requesting step for requesting the distribution of information, the second receiving step of receiving the address information distributed in response to the request by the processing of the first requesting step, and the processing of the second receiving step. Based on the received address information, a second request step for requesting the content distribution apparatus to distribute the related content, and a third request for receiving the related content distributed in response to the request by the processing of the second request step. Receiving step.

The program recorded on the third recording medium of the present invention is a program for causing a computer to perform content reproduction processing of a content reproduction apparatus that reproduces content recorded on a recording medium and having an advertisement inserted therein. A read step for reading the content recorded on the recording medium, an output step for outputting the content read by the process of the read step, and an advertisement inserted in the content output by the process of the output step And a calculation step for calculating a feature amount of a part of the advertisement excluded content that is obtained by excluding the inserted advertisement from the content and is present before and after the advertisement , and processing of the calculation step Based on the feature amount calculated by To a first request step of requesting delivery address information of the related content related to the ad exclusion content, a second for receiving address information distributed in response to a request by the processing of the first request step Based on the reception step, the address information received by the processing of the second reception step, the second request step for requesting the content distribution device to distribute related content, and the request by the processing of the second request step The content reproduction process including the third reception step of receiving the related content distributed according to the above is performed by the computer.

A third program of the present invention is a program for causing a computer to perform a content playback process of a content playback device that plays back a content that is recorded on a recording medium and in which an advertisement is inserted. A read step for reading the recorded content, an output step for outputting the content read by the process of the read step, an advertisement inserted in the content output by the process of the output step , and an insert among the contents Calculated by calculating a feature amount of a part of the advertisement excluded content existing before and after the advertisement, and a feature amount calculated by the processing of the calculation step. based on, to the content delivery apparatus, ad exclusion Conte A first requesting step for requesting distribution of address information of related content related to the message; a second receiving step for receiving address information distributed in response to a request by the processing of the first requesting step; Based on the address information received by the processing of the second receiving step, the content is distributed in response to a request by the second requesting step for requesting the content distribution device to distribute related content and the processing of the second requesting step. And causing the computer to perform content reproduction processing including a third reception step of receiving the related content.

In the first aspect of the present invention, the content distribution apparatus stores related content related to the advertisement excluded content obtained by excluding the inserted advertisement , and the advertisement inserted in the content , and the advertisement The feature amount of a part of the advertisement excluded content existing before and after is calculated, the address information of the related content stored and the calculated feature amount are associated and registered in the database, and the first content from the content receiving device The address information registered in the database is searched in response to the request, the related address information obtained by the search is distributed, and the stored related content is searched in response to the second request from the content receiving device. is, the related content obtained by the search is delivered, by the content receiving device, con Ntsu is output is received, ads that are inserted on the output content, and the feature of the portion of the ad exclusion content present before and after the advertisement is calculated based on the calculated feature quantity, related Distribution of content address information is requested, address information distributed in response to the request is received, distribution of related content is requested based on the received address information, and distribution is performed in response to the request. Related content is received.

In the second aspect of the present invention, the related content related to the advertisement excluded content obtained by excluding the inserted advertisement is stored , and the advertisement inserted in the content and before and after the advertisement are present. A feature amount for a part of the advertisement-excluded content is calculated, the address information of the related content stored and the calculated feature amount are associated and registered in the database, and based on the feature amount calculated by the content receiving device, In response to the first request from the content receiving apparatus that requests the distribution of the address information of the related content, the address information registered in the database is searched, and the address information obtained by the search is distributed . Based on address information distributed on request and received by the content receiver Te, requests distribution of the related content, in response to a second request from the content receiving device, related content that is stored is searched, the related content obtained by the search are delivered.

In the third aspect of the present invention, the content distributed from the content distribution device is received and output , and the advertisement inserted into the content and the inserted advertisement out of the content are excluded. A feature amount of a part of the advertisement excluded content that is obtained before and after the advertisement is calculated, and a relation related to the advertisement excluded content is calculated with respect to the content distribution device based on the calculated feature amount. The distribution of the address information of the content is requested, the address information distributed in response to the request is received, the content distribution apparatus is requested to distribute the related content based on the received address information, and the request Related content distributed in response to is received.

In the fourth aspect of the present invention, the content recorded on the recording medium is read out and output , and the advertisement inserted in the content and the inserted advertisement out of the content are excluded. A feature amount of a part of the advertisement excluded content that is obtained before and after the advertisement is calculated, and a relation related to the advertisement excluded content is calculated with respect to the content distribution device based on the calculated feature amount. The distribution of the address information of the content is requested, the address information distributed in response to the request is received, the content distribution apparatus is requested to distribute the related content based on the received address information, and the request Related content distributed in response to is received.

  According to the present invention, a feature amount can be calculated from distributed content. In particular, feature quantities can be calculated from normally played content and CMs, and information for acquiring other contents linked to the contents can be obtained based on the calculated feature quantities. Other contents can be acquired based on the information.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described below. The correspondence relationship between the invention described in the specification and the embodiment is exemplified as follows. Although there is an embodiment which is described in the specification but is not described here as corresponding to the invention, it does not mean that the embodiment corresponds to the invention. It doesn't mean not. Conversely, even if an embodiment is described herein as corresponding to an invention, that means that the embodiment does not correspond to an invention other than the invention. Absent.

  Further, this description does not mean that all the inventions corresponding to the embodiments described in the specification are described. In other words, this description does not deny the existence of other inventions described in the specification, that is, the existence of inventions that will be filed in division in the future, or that appear and are added by amendments.

The content distribution system according to claim 1 (for example, the distribution system 1 in FIG. 1) is an advertisement in which content distribution devices (for example, the content providing device 11 and the distribution device 12 in FIG. 1) are inserted in the content . storage means for storing the related content related to ad exclusion content obtained by excluding the (e.g., FIG. 2 of the storage unit 33 for executing the processing of step S7 in FIG. 6) and, ads that are inserted into the content, and First calculation means for calculating a feature amount of a part of the advertisement excluded content existing before and after the advertisement (for example, the feature amount calculation unit 34 in FIG. 2 that executes the process of step S8 in FIG. 6), and storage means Registration means for registering the address information of the stored related content and the feature quantity calculated by the calculation means in association with each other (example) For example, the database registration unit 35 in FIG. 2 that executes the process in step S10 in FIG. 6 and the first distribution means for distributing content (for example, the control unit 23 in FIG. 2 that executes the process in step S11 in FIG. 6). ) And a second distribution unit (for example, for searching for address information registered in the database by the registration unit and distributing related address information obtained by the search in response to a first request from the content receiving device) In response to the second request from the content receiving device and the authentication processing unit 37 in FIG. 2 that executes the processing of steps S44 to S46 in FIG. 8, the related content stored in the storage means is searched and the search is performed. third delivery means for delivering the resulting related content (e.g., authentication processing unit 37 of FIG. 2 for executing processing in steps S48, S49 in FIG. 8) and provided with, Conte A receiver (for example, the television receiver 14 or the recording device 15 in FIG. 1) receives first content (for example, the antenna 51 in FIG. 2 that executes the process of step S51 of FIG. 10 and output means that outputs the content received by the first receiving means (for example, the process of step S24 of FIG. 7 is executed). the image processing unit 71 and the output unit 72 or, as in FIG image processing unit 91 and the output unit 92 of 2) executing the processing in step S54 in FIG. 10, advertisements are inserted on the output content by the output unit, And second calculating means for calculating a feature amount for a part of the advertisement excluded content existing before and after the advertisement (for example, the process of step S25 in FIG. 7 is executed). Based on the feature amount calculated by the feature amount calculation unit 55 of FIG. 2 or the feature amount calculation unit 85 of FIG. 2 that executes the process of step S64 of FIG. First request means for requesting distribution of address information (for example, the related content information acquisition unit 56 in FIG. 2 that executes the processing in step S28 in FIG. 7 or the processing in step S69 in FIG. 11 in FIG. 2). Related content information acquisition unit 86) and second receiving means for receiving address information distributed in response to a request by the first requesting means (for example, the relation shown in FIG. 2 for executing the processing of step S29 in FIG. 7) The content information acquisition unit 56 or the related content information acquisition unit 86 in FIG. 2 that executes the process of step S70 in FIG. 11) and the address information received by the second receiving unit. Accordingly, second request means for requesting the distribution of the related content (for example, the related content acquisition unit 58 in FIG. 2 that executes the processing in step S30 in FIG. 7 or the processing in step S71 in FIG. 11). 2 related content acquisition unit 88) and third receiving means for receiving the related content distributed in response to the request by the second request means (for example, the processing of step S31 of FIG. 7 is executed). The related content acquisition unit 58 or the related content acquisition unit 88 of FIG. 2 that executes the process of step S72 of FIG. 11 is provided.

The content distribution device according to claim 2 (for example, the content providing device 11 and the distribution device 12 in FIG. 1) includes related content related to the advertisement excluded content obtained by excluding the inserted advertisement from the content. Storage means for storing (for example, the storage unit 33 in FIG. 2 that executes the process of step S7 in FIG. 6), the advertisements inserted into the content , and the feature quantities of a part of the advertisement excluded content existing before and after the advertisement Calculating means (for example, the feature amount calculation unit 34 in FIG. 2 that executes the processing of step S8 in FIG. 6), the address information of the related content stored in the storage means, and the feature calculated by the calculating means Registration means for associating quantities and registering them in the database (for example, registering the database in FIG. 2 for executing the processing of step S10 in FIG. 6) 35), first delivery means for delivering the content (e.g., as in FIG controller 23 of 2) executing the processing in step S11 in FIG. 6, based on the feature amount calculated by the content receiving device, related content In response to a first request from the content receiving apparatus that requests the distribution of the address information, the address information registered in the database is searched by the registration means, and the address information obtained by the search is distributed. Based on the distribution means (for example, the authentication processing unit 37 in FIG. 2 that executes the processing of steps S44 to S46 in FIG. 8) and the address information distributed in response to the first request and received by the content receiving device requests distribution of the content, in response to a second request from the content receiving device, retrieves the related content stored in the storage means Comprising a third delivery means for delivering related content obtained by the search (e.g., the authentication processing unit 37 of FIG. 2 for executing processing in steps S48, S49 in FIG. 8) and.

The content distribution apparatus according to claim 3 includes a generation unit that generates key information for encrypting related content (for example, the key information generation unit 31 in FIG. 2 that executes the process of step S5 in FIG. 6), and a generation unit. And encryption means for encrypting the related content (for example, the encryption unit 32 in FIG. 2 that executes the process of step S6 in FIG. 6) based on the key information generated by The related content encrypted by the converting means is stored .

The content distribution apparatus according to claim 5 further includes an authentication unit (for example, the authentication processing unit 37 in FIG. 2 that executes the process of step S41 in FIG. 8) that performs an authentication process with the content receiving apparatus, and is authenticated by the authentication unit. If so, the second distribution means searches for address information corresponding to the feature amount included in the first request, and distributes the address information obtained by the search .

The content delivery method according to claim 7 is a storage step (for example, step S7 in FIG. 6) of storing related content related to the advertisement excluded content obtained by excluding the inserted advertisement from the content , A calculation step (for example, step S8 in FIG. 6) for calculating a feature amount for the advertisement inserted into the content and a part of the advertisement excluded content existing before and after the advertisement , and the related content stored by the processing of the storage step A registration step (for example, step S10 in FIG. 6) for associating and registering the address information and the feature amount calculated by the processing in the calculation step in the database, and a first distribution step (for example, in FIG. 6) and step S11), and based on the feature amount calculated by the content receiving device, It requests distribution of the address information of the communication content, in response to the first request from the content receiving apparatus, and retrieves the address information registered in the database by the processing of the registration step, the delivery address information obtained by the search Content that requests distribution of related content based on the second distribution step (for example, steps S44 to S46 in FIG. 8) and address information distributed in response to the first request and received by the content receiving device In response to a second request from the receiving device, a related content stored by the processing of the storing step is searched, and a related content obtained by the search is distributed (for example, step S48 in FIG. 8). , S49).

The content receiving device according to claim 10 (for example, the television receiver 14 or the recording device 15 in FIG. 1) is a first receiving unit (for example, in FIG. 7) that receives the content distributed from the content distribution device. The antenna 51 of FIG. 2 that executes the process of step S21 or the antenna 81 of FIG. 2 that executes the process of step S51 of FIG. 10 and output means (for example, the content received by the first receiving means) 2, which executes the process of step S24 of FIG. 7, or the image processor 91 and the output unit 92 of FIG. 2 which executes the process of step S54 of FIG. ads that are inserted on the output content by means and of the content, ad exclusion obtained by excluding the ads that are inserted near point A is, calculating means for calculating a characteristic amount for a portion of the ad exclusion content present before and after the advertisement (e.g., feature calculation unit 55 of FIG. 2 for executing processing in step S25 in FIG. 7, or FIG. 11 2 for executing the process of step S64 of FIG. 2 and the distribution of the address information of the related content related to the advertisement excluded content to the content distribution device based on the feature amount calculated by the calculation means. 1 for requesting (for example, the related content information acquisition unit 56 of FIG. 2 that executes the process of step S28 of FIG. 7 or the related content information acquisition of FIG. 2 that executes the process of step S69 of FIG. 11). Unit 86) and second receiving means (for example, step S in FIG. 7) for receiving address information distributed in response to a request by the first requesting means. 2 that executes the process of FIG. 2 or the related content information acquisition part 86 of FIG. 2 that executes the process of step S70 of FIG. 11 and the address received by the second receiving means. Based on the information, second request means for requesting the content distribution apparatus to distribute the related content (for example, the related content acquisition unit 58 in FIG. 2 that executes the process of step S30 in FIG. 7 or the processing in FIG. 11 The related content acquisition unit 88 of FIG. 2 that executes the processing of step S71 and third receiving means for receiving the related content distributed in response to the request by the second requesting unit (for example, step S31 of FIG. 7). 2 that executes the process of FIG. 2 or the related content acquisition part 88 of FIG. 2 that executes the process of step S72 of FIG. Is provided.

The content receiving apparatus according to claim 11 , wherein the second receiving unit further receives key information for decrypting the related content, the third receiving unit receives the encrypted related content, Decryption means for decrypting the encrypted related content received by the reception means based on the key information received by the second reception means (for example, the decryption unit in FIG. 2 that executes the process of step S31 in FIG. 7) 59 or the decoding unit 89 in FIG. 2 for executing the processing in step S72 in FIG .

The content receiving device according to claim 12 is an authentication unit that performs authentication processing with the content distribution device (for example, the authentication processing unit 57 in FIG. 2 that executes the processing in step S26 in FIG. 7 or the processing in step S67 in FIG. 11). 2 for executing processing, and when authenticated by the authenticating means, the second receiving means receives the address information distributed in response to the request by the first requesting means. .

The content receiving apparatus according to claim 13 is a combining unit that combines the advertisement excluded content included in the content output by the output unit and the related content received by the third receiving unit (for example, step of FIG. 7). 2 is further provided for executing the process of S32, or the combining unit 96 of FIG. 2 for executing the process of step S74 of FIG.

The content receiving apparatus according to claim 14 is a recording unit that records the content received by the first receiving unit and the related content received by the third receiving unit (for example, step S56 in FIG. 10 and 11 for executing the process of step S75 in FIG. 11 and the reproducing means for reproducing the content recorded in the recording means (for example, the reproduction of FIG. 2 for executing the process of step S62 in FIG. 11). part 95) and further comprising a calculating means calculates a feature amount for a portion of the ad exclusion contents existing advertisements, and before and after the advertisements are inserted into reproduced content by the reproducing means, first The request unit requests distribution of address information based on the feature amount calculated by the calculation unit, and the second reception unit responds to the request by the first request unit. The second request means requests the delivery of the related content based on the address information received by the second reception means, and the third reception means The related content distributed in response to the request by the second request means is received.

The content receiving apparatus according to claim 16 determines whether or not related content corresponding to the feature amount has already been recorded in the recording means (for example, the process of step S65 in FIG. 11 is executed). The related content information acquisition unit 86), and when the determination unit determines that the related content has already been recorded, the first request unit does not make a distribution information address request .

The content reception method according to claim 19 includes a first reception step (for example, step S21 in FIG. 7 or step S51 in FIG. 10) for receiving content distributed from the content distribution device, and a first reception step. output step of outputting the content received by the process of (for example, step S54 in step S24 or 10 in FIG. 7) and, ads that are inserted on the output content by the processing of the outputting step, and of the content A calculation step (for example, step S25 in FIG. 7 or FIG. 11) that calculates the feature amount of a part of the advertisement excluded content that is obtained by excluding the inserted advertisement and exists before and after the advertisement . Step S64) and the feature amount calculated by the calculation step process To the content delivery apparatus, a first request step of requesting delivery address information of the related content related to the ad exclusion content (e.g., step S69 in step S28 or 11 in FIG. 7), the first requesting step A second reception step (for example, step S29 in FIG. 7 or step S70 in FIG. 11) for receiving the address information distributed in response to the request by the process, and the address information received by the process in the second reception step Based on the second request step (for example, step S30 in FIG. 7 or step S71 in FIG. 11) for requesting the content distribution apparatus to distribute related content, and according to the request by the processing of the second request step. A third reception step (for example, step of FIG. 7) for receiving the related content distributed in this manner Containing 31 or step S72 in FIG. 11) and.

The content reproduction apparatus according to claim 22 (for example, the television receiver 14 in FIG. 1) is a reading unit (for example, in FIG. 12) that reads the content recorded on the recording medium (for example, the medium 61 in FIG. 2). The image processing unit 71 in FIG. 2 that executes the processing in step S82 and the output unit that outputs the content read by the reading unit (for example, the image processing unit 71 in FIG. 2 that executes the processing in step S83 in FIG. 12). and an output unit 72), advertisements are inserted on the output content by an output unit, and of the content, a advertisement exclusion content obtained by excluding the ads that are inserted, existing before and after ad calculating means for calculating a characteristic amount for a portion of the ad exclusion content (e.g., FIG executing the processing in step S84 in FIG. 12 And feature quantity calculating unit 55), based on the feature amount calculated by the calculation means, to the content distribution apparatus, a first request means for requesting the delivery of address information of the related content related to the ad exclusion content (e.g. The related content information acquisition unit 56 in FIG. 2 that executes the process of step S87 in FIG. 12 and second receiving means (for example, receiving address information distributed in response to a request by the first requesting means) Based on the related content information acquisition unit 56) of FIG. 2 that executes the processing of step S88 of FIG. 12 and the address information received by the second receiving means, the content distribution apparatus is requested to distribute related content. By a second requesting unit (for example, the related content acquisition unit 58 of FIG. 2 that executes the process of step S89 of FIG. 12) and the second requesting unit And a third receiving means for receiving the related content which is distributed in accordance with the determined (e.g., related content acquisition unit 58 of FIG. 2 for executing processing in step S90 in FIG. 12).

The content playback apparatus according to claim 23 , wherein the second receiving unit further receives key information for decrypting the related content, the third receiving unit receives the encrypted related content, Decryption means for decrypting the encrypted related content received by the reception means based on the key information received by the second reception means (for example, the decryption unit in FIG. 2 that executes the processing of step S90 in FIG. 12) 59) .

The content reproduction apparatus according to claim 24 further includes an authentication unit (for example, the authentication processing unit 57 of FIG. 2 that executes the process of step S85 of FIG. 12) that performs authentication processing with the content distribution apparatus, and is authenticated by the authentication unit. In this case, the second receiving means receives the address information distributed in response to the request from the first requesting means .

The content reproduction apparatus according to claim 25, a combining unit that combines the advertisement excluded content included in the content output by the output unit and the related content received by the third receiving unit (for example, step of FIG. 12). 2 is further provided to execute the process of S91.

In the content reproduction method according to claim 26, a reading step of reading the content recorded on the recording medium (for example, step S82 in FIG. 12) and an output step of outputting the content read by the processing of the reading step ( for example, the step S83) in FIG. 12, advertisements are inserted on the output content by the processing of the outputting step, and of the content, a advertisement exclusion content obtained by excluding the advertisement is inserted, Based on the calculation step (for example, step S84 in FIG. 12) for calculating a feature amount for a part of the advertisement-excluded content existing before and after the advertisement, and the feature amount calculated by the processing of the calculation step, , distribution of address information of the related content related to the ad exclusion content And a second receiving step (for example, FIG. 12) for receiving address information distributed in response to the request by the processing of the first requesting step (for example, step S87 in FIG. 12). Step S88) and a second request step for requesting the content distribution apparatus to distribute related content based on the address information received by the processing of the second reception step (for example, step S89 in FIG. 12). And a third reception step (for example, step S90 in FIG. 12) for receiving the related content distributed in response to the request by the processing of the second request step.

In the program recorded on the recording medium according to claim 8 and the program according to claim 9 , the embodiment (however, an example) corresponding to each step is the content distribution according to claim 7. In the program recorded on the recording medium according to claim 20 and the program according to claim 21 , an embodiment (however, an example) to which each step corresponds is described in claim 19 . In the program recorded on the recording medium according to claim 27 and the program according to claim 28 , the embodiment corresponding to each step (however, an example) This is the same as the content reproduction method according to claim 26 .

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing a configuration example of an embodiment of a distribution system 1 to which the present invention is applied. In the distribution system 1, a content providing device 11, a distribution device 12, a television receiver 14, and a recording device 15 are connected to each other via a network 13 such as the Internet.

  The content providing device 11 produces broadcast content (so-called program) into which the advertisement information (CM) provided from the advertiser 16 is inserted, and distributes it to the television receiver 14 and the recording device 15. Further, the content providing apparatus 11 creates related content to be newly provided when the broadcast content is viewed and supplies the related content to the distribution apparatus 12 directly or via the network 13.

  The distribution device 12 encrypts and stores the related content supplied from the content providing device 11. Further, the distribution device 12 calculates the feature amount of the broadcast content, and registers the feature amount and information for acquiring the related content in association with each other in the database. In addition, the distribution device 12 reads out information for acquiring related content corresponding to the feature amount transmitted from the television receiver 14 or the recording device 15 and distributes the information via the network 13. Further, the distribution device 12 reads out predetermined related content according to the information transmitted from the television receiver 14 or the recording device 15 and distributes it via the network 13.

  The television receiver 14 receives and reproduces broadcast content distributed from the content providing apparatus 11. Further, the television receiver 14 calculates the feature amount when the broadcast content including the CM is normally reproduced and transmits the feature amount to the distribution device 12 via the network 13 to acquire the related content. Request delivery of. The television receiver 14 requests the distribution device 12 to distribute the related content via the network 13 based on the information for acquiring the related content. Further, the television receiver 14 receives the related content distributed from the distribution device 12 via the network 13, and decodes and reproduces the related content based on the previously acquired information.

  The recording device 15 is configured by, for example, an HDD recorder, and receives and records broadcast content distributed from the content providing device 11. When playback is instructed by the user, the recording device 15 reads the recorded content, supplies it to the television receiver 14 and plays it back. In addition, when the broadcast content including the CM is normally played back, the recording device 15 calculates the feature amount and transmits it to the distribution device 12 via the network 13 to distribute information for acquiring the related content. Request. The recording device 15 requests the distribution device 12 to distribute the related content via the network 13 based on the information for acquiring the related content. Further, the recording device 15 receives the related content distributed from the distribution device 12 via the network 13, decodes the related content based on the previously acquired information, and sends it to the television receiver 14. Supply and regenerate.

  FIG. 2 is a block diagram illustrating an internal configuration example of the distribution system 1.

  The content providing apparatus 11 includes a content production unit 21, a storage unit 22, a control unit 23, and a transmission unit 24.

  The content production unit 21 produces broadcast content in which the advertisement information (CM) provided by the advertiser 16 is inserted into the content (program), and newly provides it when the broadcast content is viewed. Create related content linked to broadcast content.

  The storage unit 22 stores broadcast content produced by the content production unit 21. The control unit 23 reads the broadcast content stored in the storage unit 22 and distributes it via the transmission unit 24.

  The distribution apparatus 12 includes a key information generation unit 31, an encryption unit 32, a storage unit 33, a feature amount calculation unit 34, a database registration unit 35, a database 36, an authentication processing unit 37, and a transmission / reception unit 38.

  The key information generation unit 31 generates key information for encrypting the related content produced by the content providing apparatus 11 and supplies the key information to the encryption unit 32 and the database registration unit 35, respectively. The encryption unit 32 encrypts the related content supplied from the content providing apparatus 11 using the key information supplied from the key information generation unit 31 and stores the encrypted related content in the storage unit 33.

  FIG. 3 is a diagram illustrating a storage example of related content stored in the storage unit 33. In the example of FIG. 3, “related content A” is stored at the storage address “ADRS001”, and “related content C” is stored at the storage address “ADRS003”.

  The feature amount calculation unit 34 reads the broadcast content from the storage unit 22 of the content providing apparatus 11 and calculates the feature amount. For example, as shown in FIG. 4, in broadcast content composed of content A, advertisement information CMA1 to CMA3, content B, advertisement information CMB1 to CMB3, and content C, advertisement information CMA1 to CMA3 and content A A feature amount X1 is calculated from an area A including a predetermined section (such as one minute) of the content B. Further, the feature amount X2 is calculated from the area B including the advertisement information CMA3, the content B, and the advertisement information CMB1. Further, the feature amount X3 is calculated from the advertisement information CMB1 to CMB3 and the area C including the predetermined sections of the content B and the content C before and after the advertisement information CMB1 to CMB3.

  Here, in the feature amount calculation, the feature amount of the video is calculated from, for example, a pixel value such as luminance and brightness, or a motion vector, and the feature amount of the sound is calculated from, for example, a frequency distribution. Details of the technique related to feature amount extraction are disclosed in, for example, Japanese Patent Application Laid-Open No. 2002-290889.

  The database registration unit 35 obtains information (hereinafter referred to as storage address information) regarding the storage location of the encrypted related content in the storage unit 33, and uses it as the feature amount supplied from the feature amount calculation unit 34, and The data is registered in the database 36 in association with the key information supplied from the key information generation unit 31.

  FIG. 5 is a diagram illustrating an example of accumulation of information registered in the database 36. As shown in the figure, “feature amount”, “storage address information”, and “key information” are associated and stored. In the example of FIG. 5, the feature quantity “X1”, the storage address information “ADRS001”, and the key information “K1” are accumulated in association with each other, the feature quantity “X3”, and the storage address information “ADRS003”. , And key information “K3” are stored in association with each other. The feature amounts “X1” and “X3” represent the feature amounts calculated from the areas A and C described in FIG. 4, and the storage address information of “ADRS001” and “ADRS003” has been described with reference to FIG. The storage address of the storage unit 33 is shown.

  In the present embodiment, when the user views the CM, the feature amount registered in the database 36 is an area including the CM (in the case of the example in FIG. 4) so that the related content can be acquired. , Region A and region C). Therefore, the feature amount calculated from the other region (region B in the example of FIG. 4) is not registered in the database 36.

  Returning to the description of FIG. When accessed from the television receiver 14 or the recording device 15 via the network 13 and the transmission / reception unit 38, the authentication processing unit 37 performs predetermined authentication processing. Then, when authenticated, the authentication processing unit 37 is stored in the database 36 based on the feature amount included in the information distribution request for acquiring the related content supplied from the transmission / reception unit 38. The storage address information and key information associated with the quantity are retrieved and supplied to the transmission / reception unit 38. Further, the authentication processing unit 37 reads out the predetermined related content stored in the storage unit 33 based on the storage address information included in the related content distribution request supplied from the transmission / reception unit 38, and sends it to the transmission / reception unit 38. Supply.

The transmission / reception unit 38 receives an information distribution request or a related content distribution request for acquiring related content transmitted from the television receiver 14 or the recording device 15 via the network 13 and performs authentication processing. To the unit 37. In addition, the transmission / reception unit 38 receives the storage address information and key information supplied from the authentication processing unit 37 or related content.
The data is distributed to the television receiver 14 or the recording device 15 via the network 13.

  The television receiver 14 includes an antenna 51, a tuner 52, a demodulation unit 53, a use unit 54, a feature amount calculation unit 55, a related content information acquisition unit 56, an authentication processing unit 57, a related content acquisition unit 58, a decoding unit 59, and The use unit 54 includes an image processing unit 71, an output unit 72, and a combining unit 73.

  The antenna 51 receives the broadcast content that has been distributed. The tuner 52 tunes the broadcast content received by the antenna 51 and selects a reception wave of a predetermined channel. The demodulator 53 demodulates the received wave of the predetermined channel selected by the tuner 51. The image processing unit 71 performs predetermined image processing on the data demodulated by the demodulation unit 53. The output unit 72 generates output data from data that has been subjected to predetermined image processing by the image processing unit 71.

  The feature amount calculation unit 55 calculates a feature amount from the output data generated by the output unit 72 and supplies it to the related content information acquisition unit 56. The related content information acquisition unit 56 distributes information for acquiring related content to the distribution device 12 via the authentication processing unit 57 and the network 13 based on the feature amount supplied from the feature amount calculation unit 55. Request. The related content information acquisition unit 56 receives storage address information and key information that are information for acquiring the related content distributed from the distribution device 12 and supplies the storage address information to the related content acquisition unit 58. At the same time, the key information is supplied to the decryption unit 59.

  Based on the storage address information supplied from the related content information acquisition unit 56, the related content acquisition unit 58 requests the distribution apparatus 12 to distribute the related content via the authentication processing unit 57 and the network 13. Further, the related content acquisition unit 58 receives the related content distributed from the distribution device 12 and supplies it to the decryption unit 59.

  Based on a request from the related content information acquisition unit 56, the authentication processing unit 57 accesses the distribution device 12 via the network 13 and performs an authentication process with the distribution device 12. When authenticated, the authentication processing unit 57 transmits the feature amount supplied from the related content information acquisition unit 56 to the distribution device 12 via the network 13, and the related content distributed based on the feature amount. The storage address information and the key information, which are information for acquiring the information, are received and supplied to the related content information acquisition unit 56. Further, the authentication processing unit 57 transmits the storage address information supplied from the related content acquisition unit 58 to the distribution device 12 via the network 13, receives the related content distributed based on the storage address information, The related content acquisition unit 58 is supplied.

  The decryption unit 59 decrypts the related content received by the related content acquisition unit 58 using the key information supplied from the related content information acquisition unit 56. The synthesizing unit 73 newly obtains output data generated by the output unit 72 (that is, broadcast content that is normally distributed) and data decoded by the decoding unit 59 (that is, linked to the broadcast content). Related content) is synthesized (superimposed) and output to a display or a speaker.

  A medium 61 is appropriately attached to the drive 60 as necessary, and the recorded content read from the medium 61 is supplied to the use unit 54 for playback, or the data output from the use unit 54 is stored in the medium. 61 is recorded.

  The recording device 15 includes an antenna 81, a tuner 82, a demodulation unit 83, a use unit 84, a feature amount calculation unit 85, a related content information acquisition unit 86, an authentication processing unit 87, a related content acquisition unit 88, and a decoding unit 89. Further, the use unit 84 includes an image processing unit 91, an output unit 92, a recording unit 93, an HDD 94, a playback unit 95, and a synthesis unit 96.

  The antenna 81 through the demodulator 83 and the feature quantity calculator 85 through the decoder 89 have the same configurations as the antenna 51 through demodulator 53 and the feature quantity calculator 55 through the decoder 59 of the television receiver 14, respectively. The description thereof is omitted.

  The image processing unit 91 performs predetermined image processing on the data demodulated by the demodulation unit 83. The output unit 92 generates output data from the data that has been subjected to predetermined image processing by the image processing unit 91. The recording unit 93 performs a predetermined compression process on the output data generated by the output unit 92 and stores (records) it as recorded data in the HDD 94. The reproduction unit 95 reads out and reproduces the recorded data stored in the HDD 94 and performs a predetermined expansion process on the reproduction data.

  The synthesizing unit 96 newly obtains the reproduction data expanded by the reproducing unit 95 (that is, broadcast content that is normally distributed) and the data decoded by the decoding unit 89 (that is, linked to the broadcast content). Related content) is synthesized (superimposed) and output to a display or a speaker. The decryption unit 89 supplies the decrypted data to the HDD 94 via the recording unit 93 and stores it therein. As with the television receiver 14, the output data generated by the output unit 92 of the recording device 15 is not compressed and stored, but is directly combined with the output from the decoding unit 88 by the combining unit 96. Also good.

  With the above configuration, broadcast content and related content linked with the content are synthesized and output on the receiving side. Thus, for example, the following can be considered as interlocking.

(1) In the baseball broadcast, the player's performance information data is acquired as related content, and is displayed on the screen.
(2) In a baseball broadcast, a slow motion image or a video taken from another angle is acquired as related content and displayed.
(3) When a recorded news or weather forecast program is reproduced, the subsequent progress or change status is acquired as related content and displayed.
(4) In an application video such as a prize, only a user who has normally viewed a program acquires and displays a quiz hint or the like as related content.
(5) In a program, only a user who has normally viewed the program acquires and displays a free gift application video as related content.
(6) In music programs or video programs, high sound quality data and high image quality data are acquired as related contents, and are switched from low sound quality data and low image quality data and output.
(7) When all the CMs of a predetermined advertiser are viewed, the next CM (for example, a rare CM) provided by the advertiser is acquired and displayed.
(8) Relevant content is received, and external devices such as a vibration pad, a reclining seat, an odor generating device, and an acceleration sensation device are controlled based on this data.

  In this way, the related content linked to the broadcast content can be acquired only when the user has viewed the CM normally, and the content providing device 11 and the distribution device 12 provide the program as a more interesting service. can do.

  Next, broadcast content distribution processing executed by the content providing device 11 and the distribution device 12 will be described with reference to the flowchart of FIG.

  In step S <b> 1, the administrator of the content providing apparatus 11 makes a sponsor contract with the advertiser 16. In step S2, the content production unit 21 produces broadcast content in which the advertisement information (CM) provided by the advertiser 16 is inserted into the content (program). In step S <b> 3, the content production unit 21 stores the broadcast content produced in the process of step S <b> 2 in the storage unit 22. In step S4, the content production unit 21 produces related content linked to the broadcast content to be newly provided when the broadcast content produced in the process of step S2 is normally viewed and supplies the content to the distribution device 12. To do.

  In step S5, the key information generation unit 31 of the distribution device 12 generates key information for encrypting the related content produced in the process of step S4. In step S6, the encryption unit 32 encrypts the related content produced in step S4 using the key information generated in step S5. In step S7, the encryption unit 32 stores the related content encrypted in the process of step S6 in the storage unit 33.

  In step S8, the feature amount calculation unit 34 reads the broadcast content stored in the storage unit 22 of the content providing apparatus 11 in the process of step S3, and calculates the feature amount. For example, as shown in FIG. 4, the feature amount X1 is calculated from the advertisement information CMA1 to CMA3 and the area A including a predetermined section (such as one minute) of the content A and the content B before and after the advertisement information CMA1 to CMA3. A feature amount X3 is calculated from the CMB3 and a region C including a predetermined section of the content B and the content C before and after the CMB3.

  In step S9, the database registration unit 35 acquires storage address information of the related content stored in the storage unit 33 in the process of step S7. In step S10, the database registration unit 35 associates the feature amount calculated in the process of step S8, the storage address information acquired in the process of step S9, and the key information generated in the process of step S5 with the database 36. (For example, FIG. 5).

  In step S <b> 11, the control unit 23 of the content providing apparatus 11 reads the broadcast content stored in the storage unit 22 in the process of step S <b> 3 and distributes it via the transmission unit 24.

  Through the broadcast content distribution process described above, the content providing apparatus 11 can produce broadcast content and distribute it to viewers, and can produce related content linked to the broadcast content. Further, the distribution device 12 stores the related content produced by the content providing device 11, generates key information for encrypting the related content, calculates the feature amount of the broadcast content, and calculates the calculated feature amount, Stored address information of related content and key information stored in the database 36 can be associated with each other.

  In step S2, synchronization information may be generated when the broadcast content is produced and embedded in the broadcast content in advance.

  In step S4, the key information is generated for each broadcast content. However, the present invention is not limited to this. For example, the key information may be unique (one) in the system and periodically updated. . In this case, it is not necessary to store the key information in the database 36 in association with the feature amount in step S10.

  Next, content reception processing executed by the television receiver 14 will be described with reference to the flowchart of FIG.

  In step S21, the antenna 51 receives the broadcast wave (that is, broadcast content) distributed by the process of step S11 of FIG. 6 described above. In step S22, the tuner 52 tunes the broadcast content received in the process of step S21, and selects a reception wave of a predetermined channel. In step S23, the demodulator 53 demodulates the received wave of the predetermined channel selected in the process of step S22.

  In step S24, the image processing unit 71 performs predetermined image processing on the data demodulated in step S23. The output unit 72 generates output data from the image-processed data. In step S25, the feature amount calculation unit 55 calculates a feature amount from the output data generated in the process of step S24. In step S <b> 26, the related content information acquisition unit 56 supplies the feature amount calculated in the process of step S <b> 25 to the authentication processing unit 57, requests the authentication process with the distribution device 12, and is authenticated. If it is, the distribution of information for acquiring related content is requested. Based on a request from the related content information acquisition unit 56, the authentication processing unit 57 accesses the distribution device 12 via the network 13 and performs an authentication process with the distribution device 12.

  In step S <b> 27, the authentication processing unit 57 determines whether or not the authentication processing unit 57 has been authenticated with the distribution device 12, and when it is determined that the authentication has been performed, the process proceeds to step S <b> 28 and the feature amount supplied from the related content information acquisition unit 56. Is transmitted to the distribution apparatus 12 via the network 13. The distribution apparatus 12 that has received this feature quantity searches the database 36 for storage address information and key information associated with the feature quantity and distributes the details (details will be described later with reference to the flowchart of FIG. 8). .

  In step S29, the related content information acquisition unit 56 acquires the storage address information and key information distributed from the distribution device 12 via the network 13 based on the feature amount transmitted in the process of step S28. In step S30, the related content acquisition unit 58 requests the distribution apparatus 12 to distribute the related content via the authentication processing unit 57 and the network 13 based on the storage address information acquired in the process of step S29. . Upon receiving this request, the distribution device 12 searches for and distributes the related content corresponding to the storage unit 33 based on the storage address information included in the reception request (details will be described later with reference to the flowchart of FIG. 8). To do).

  In step S31, the related content acquisition unit 58 acquires the related content distributed from the distribution device 12 via the network 13 in response to the distribution request by the process of step S30. The decryption unit 59 decrypts the related content using the key information acquired in the process of step S29. In step S32, the synthesis unit 73 synthesizes the output data (broadcast content) generated in the process of step S24 and the data (related content) decoded in the process of step S31, and outputs the synthesized data to a display, a speaker, or the like. .

  If it is determined in step S27 that authentication has not been performed with the distribution device 12, the process proceeds to step S33, and the combining unit 73 outputs the output data (broadcast content) generated in the process of step S24 to a display, a speaker, or the like. Output. In other words, if the user is not authenticated with the distribution device 12 (in the case of an unauthorized viewer), the related content linked to the broadcast content cannot be acquired, so only the broadcast content that anyone can view is output. Is done.

  Through the above content reception processing, the television receiver 14 calculates a feature amount when the received broadcast content (including the CM) is normally reproduced, and based on the feature amount, storage address information of related content and The key information can be acquired, and the related content linked to the broadcast content can be newly acquired based on the storage address information.

  In addition, when authenticated, the key information and the storage address information based on the feature amount are acquired, the encrypted related content is further acquired based on the acquired storage address information, and the previously acquired key is acquired. However, the present invention is not limited to this. For example, the storage address information based on the feature amount is acquired, and the related content encrypted based on the acquired storage address information is used. If the key information is acquired and authenticated, the key information may be further acquired and decrypted.

  Next, the related content distribution processing executed by the distribution device 12 will be described with reference to the flowchart of FIG.

  In step S41, when accessed from the receiving side (for example, the television receiver 14), the authentication processing unit 37 performs a predetermined authentication process, and determines in step S42 whether or not it has been authenticated. If it is determined in step S42 that authentication has been performed, the process proceeds to step S43, and the authentication processing unit 37 determines whether or not the feature amount has been received from the reception side via the transmission / reception unit 38, and until the feature amount is received. stand by.

  If it is determined in step S43 that the feature amount transmitted by the process of step S28 of FIG. 7 described above has been received, the process proceeds to step S44, and the authentication processing unit 37 refers to the database 36 and stores it therein. Among the feature amounts, the one that matches the received feature amount is searched. In step S45, the authentication processing unit 37 acquires storage address information and key information associated with the feature amount searched in the process of step S44. For example, when the feature amount “X1” is received, the storage address information “ADRS001” and the key information “K1” associated with the feature amount “X1” are acquired in FIG.

  In step S46, the authentication processing unit 37 distributes the storage address information and key information acquired in the process of step S45. The television receiver 14 that has received such information requests distribution of related content based on the storage address information (step S30 in FIG. 7). In step S47, the authentication processing unit 37 determines whether storage address information has been received from the receiving side via the transmission / reception unit 38, and waits until the storage address information is received.

  If it is determined in step S47 that the storage address information transmitted by the process of step S30 in FIG. 7 is received, the process proceeds to step S48, and the authentication processing unit 37 stores the storage received in the process of step S47. Based on the address information, a predetermined related content stored in the storage unit 33 is searched. For example, when the storage address information “ADRS001” is received, “related content A” is searched in FIG. In step S49, the authentication processing unit 37 distributes the related content searched in the process of step S48 via the transmission / reception unit 38.

  Through the related content distribution process described above, the distribution device 12 can search and distribute the corresponding storage address information and key information based on the feature amount included in the distribution request from the viewer, and further from the viewer. On the basis of the storage address information included in the distribution request, the corresponding related content can be searched and distributed.

  Further, when authenticated, the key information and the storage address information based on the feature amount are searched and distributed. However, the present invention is not limited to this. For example, the storage address information based on the feature amount is stored. If the information is retrieved and distributed and authenticated, the key information may be retrieved and distributed.

  In step S41, the authentication process is always performed when accessed from the receiving side, but this is performed to prevent unauthorized acquisition of related content, and the authentication process is omitted. Of course it is also possible.

  According to the above, while the viewer is viewing the broadcast content, for example, as shown in FIG. 9A, the feature amount is calculated from the broadcast content including the content A and the advertisement information CMA, and stored based on the feature amount. Address information and key information can be acquired. Further, it is possible to further acquire related content based on the storage address information and decrypt it using the previously acquired key information. At that time, for example, by restricting the acquired related content to be viewed in the CM area (for example, by synchronizing the related content with synchronization information for matching the audio and video in the CM area) The person can reproduce the related content only when the user normally views the CM without skipping it.

  Further, for example, while the viewer is watching the broadcast content, for example, as shown in FIG. 9B, among the broadcast content composed of the content B and the advertisement information CMB, the feature amount is calculated from the content B, and the feature amount is calculated. Based on this, storage address information can be acquired. Further, it is possible to further acquire related content based on the storage address information. Then, by viewing the CM, the viewer can calculate a feature amount from the advertisement information CMB, acquire key information based on the feature amount, and decrypt the related content. The decrypted related content is displayed in a superimposed manner on the broadcast content, or switched to a reproduction-dedicated channel and reproduced within the frame.

  Furthermore, for example, while the viewer is viewing the broadcast content, for example, as shown in FIG. 9C, the feature amount is calculated from the advertisement information CMC among the broadcast content including the content C and the advertisement information CMC, and the feature is calculated. Based on the amount, the storage address information and the key information can be acquired. Further, it is possible to further acquire related content based on the storage address information and decrypt it using the previously acquired key information. That is, the viewer can acquire and decrypt the related content only when viewing the CM. The decrypted related content is displayed in a superimposed manner on the broadcast content, or switched to a reproduction-dedicated channel and reproduced within the frame.

  As described above, the content providing apparatus 11 does not forcibly show the CM, but provides the broadcast content that makes the user want to see the CM so that the viewer can receive a higher quality service ( That is, in order to acquire related content and play it back, the user can naturally watch the commercial without skipping the commercial or switching to another channel.

  In the above, the broadcast content is viewed in real time, the feature amount of the broadcast content is calculated, the storage address information and key information for acquiring the related content are acquired based on the calculated feature amount, and acquired. Although an example in the case of newly acquiring related content based on the stored address information has been described, the present invention is not limited to this, for example, even when broadcasting content is recorded and reproduced, It is possible to newly acquire related content.

  Next, content recording processing executed by the recording device 15 will be described with reference to the flowchart of FIG.

  In step S51, the antenna 81 receives the broadcast wave (that is, broadcast content) distributed by the process of step S11 of FIG. 6 described above. In step S52, the tuner 82 tunes the broadcast content received in the process of step S51, and selects a reception wave of a predetermined channel. In step S53, the demodulator 83 demodulates the received wave of the predetermined channel selected in the process of step S52.

  In step S54, the image processing unit 91 performs predetermined image processing on the data demodulated in step S53. The output unit 92 generates output data from the image-processed data. In step S55, the recording unit 93 performs a predetermined compression process on the output data generated in the process of step S54. In step S56, the recording unit 93 stores (records) the data subjected to the compression process in step S55 in the HDD 94 as recorded data.

  Through the content recording process described above, the recording device 15 can record the received broadcast content (including CM) on the HDD 94.

  Next, recording content playback processing executed by the recording device 15 will be described with reference to the flowchart of FIG.

  In step S61, the playback unit 95 determines whether or not playback is instructed by the user via an input unit (not shown), and waits until playback is instructed. If it is determined that reproduction has been instructed, the process proceeds to step S62, and the reproduction unit 95 reads out and reproduces predetermined data instructed by the user among the data recorded in the HDD 94. In step S63, the reproduction unit 95 performs a predetermined expansion process on the data reproduced in the process of step S62.

  In step S64, the feature amount calculation unit 85 calculates a feature amount from the reproduction data that has been subjected to the expansion processing in step S63. In step S65, the related content information acquisition unit 86 determines whether the related content corresponding to the feature amount calculated in the process of step S64 is already stored in the HDD 94, and the related content corresponding to the calculated feature amount. If it is determined that the content is already stored in the HDD 94, the process proceeds to step S66, and it is further determined whether or not new related content can be acquired from the stored related content. For example, when the related content stored is content with a time limit, if the time limit has expired, it is determined that acquisition of new related content is possible.

  If it is determined in step S66 that new related content can be acquired, or if it is determined in step S65 that related content corresponding to the calculated feature amount is not stored in the HDD 94, related content The information acquisition unit 86 supplies the feature amount calculated in the process of step S64 to the authentication processing unit 87 and requests to perform the authentication process with the distribution device 12. After requesting distribution of information for acquiring content, the process proceeds to step S67.

  In step S <b> 67, the authentication processing unit 87 accesses the distribution device 12 via the network 13 based on a request from the related content information acquisition unit 86 and performs an authentication process with the distribution device 12. In step S <b> 68, the authentication processing unit 87 determines whether or not the authentication processing unit 87 has been authenticated with the distribution device 12. When the authentication processing unit 87 determines that it has been authenticated, the process proceeds to step S <b> 69 and the feature amount supplied from the related content information acquisition unit 86. Is transmitted to the distribution apparatus 12 via the network 13. The distribution apparatus 12 that has received the feature amount searches the database 36 for storage address information and key information associated with the feature amount, and distributes them by the processing in steps S44 to S46 of FIG.

  In step S70, the related content information acquisition unit 86 acquires the storage address information and key information distributed from the distribution device 12 via the network 13 based on the feature amount distributed in the process of step S69. In step S71, the related content acquisition unit 88 requests distribution of the related content to the distribution device 12 via the authentication processing unit 87 and the network 13 based on the storage address information acquired in the process of step S70. . The distribution apparatus 12 that has received this request searches the storage unit 33 for the related content and distributes it by the processing in steps S48 and S49 of FIG. 8 described above.

  In step S72, the related content acquisition unit 88 acquires the related content distributed from the distribution device 12 via the network network 13 in response to the distribution request by the process of step S71. The decryption unit 89 decrypts the related content using the key information acquired in the process of step S70.

  If it is determined in step S66 that new related content cannot be acquired, the process proceeds to step S73, and the playback unit 95 calculates the feature amount calculated in step S64 from the related content stored in the HDD 94. Related content corresponding to is read. The decrypting unit 89 decrypts the related content read from the HDD 94 using the acquired key information.

  After step S72 or step S73, in step S74, the synthesizer 96 reproduces the reproduction data (broadcast content) expanded in step S63 and the data decoded in step S72 or step S73 (related). Content) and output to the display or speaker of the television receiver 14. In step S75, the recording unit 93 performs a predetermined compression process on the data (related content) decrypted in the process of step S72 or step S73 if necessary, and stores it in the HDD 94. However, since the data decrypted in the process of step S72 is newer than the data stored in the HDD 94, the old data is updated to the new data.

  If it is determined in step S68 that the authentication has not been performed with the distribution device 12, the process proceeds to step S76, and the synthesizing unit 73 outputs the output data (broadcast content) generated in the process of step S24 to the television receiver 14. Output to the display or speaker. In other words, if the user is not authenticated with the distribution device 12 (in the case of an unauthorized viewer), the related content linked to the broadcast content cannot be acquired, so only the broadcast content that anyone can view is output. Is done.

  Through the above recorded content playback processing, the recording device 15 calculates the feature amount when the recorded broadcast content (including CM) is played back normally, and based on the feature amount, the storage address information and the key of the related content are calculated. Information can be acquired, and further, related content linked to broadcast content can be newly acquired based on the storage address information.

  In the above, the feature amount of the received broadcast content is calculated, the storage address information and key information for acquiring the related content are acquired based on the calculated feature amount, and the related address is acquired based on the acquired storage address information. Although an example in which content is newly acquired has been described, the present invention is not limited to this. For example, even when content with CM recorded on a recording medium is played back, related content is newly acquired. Is possible.

  Next, with reference to the flowchart of FIG. 12, a description will be given of a process for reproducing content with CM recorded on the medium 61 attached to the drive 60, which is executed by the television receiver 14.

  In step S81, the image processing unit 71 determines whether or not reproduction is instructed by the user via an input unit (not shown), and waits until the reproduction is instructed. If it is determined that the reproduction has been instructed, the process proceeds to step S82, and the image processing unit 71 reads predetermined data instructed by the user from among the data recorded on the media 61 attached to the drive 60. . In step S83, the image processing unit 71 performs predetermined image processing on the data read out in step S82. The output unit 72 generates output data from the image-processed data.

  In step S84, the feature amount calculation unit 55 calculates a feature amount from the output data generated in the process of step S83. In step S85, the related content information acquisition unit 56 supplies the feature amount calculated in the processing of step S84 to the authentication processing unit 57, requests the authentication processing unit 57 to perform authentication processing, and is authenticated. If it is, the distribution of information for acquiring related content is requested. Based on a request from the related content information acquisition unit 56, the authentication processing unit 57 accesses the distribution device 12 via the network 13 and performs an authentication process with the distribution device 12.

  In step S86, the authentication processing unit 57 determines whether or not the authentication processing unit 57 has been authenticated with the distribution apparatus 12. If it is determined that the authentication has been performed, the process proceeds to step S87, and the feature amount supplied from the related content information acquiring unit 56 is determined. Is transmitted to the distribution apparatus 12 via the network 13. The distribution apparatus 12 that has received the feature amount searches the database 36 for storage address information and key information associated with the feature amount, and distributes them by the processing in steps S44 to S46 of FIG.

  In step S88, the related content information acquisition unit 56 acquires the storage address information and key information distributed from the distribution device 12 via the network 13 based on the feature amount distributed in the process of step S87. In step S89, the related content acquisition unit 58 requests the distribution apparatus 12 to distribute the related content via the authentication processing unit 57 and the network 13 based on the storage address information acquired in the process of step S88. . The distribution apparatus 12 that has received this request searches the storage unit 33 for the related content and distributes it by the processing in steps S48 and S49 of FIG. 8 described above.

  In step S90, the related content acquisition unit 58 acquires the related content distributed from the distribution device 12 via the network 13 in response to the distribution request by the process of step S89. The decrypting unit 59 decrypts the related content using the key information acquired in the process of step S88. In step S91, the synthesizer 73 synthesizes the output data (broadcast content) generated in the process of step S83 and the data decoded in the process of step S90 (related content) and outputs them to a display, a speaker, or the like. .

  If it is determined in step S86 that the authentication has not been performed with the distribution device 12, the process proceeds to step S92, and the combining unit 73 outputs the output data (broadcast content) generated in the process of step S83 to a display, a speaker, or the like. Output. In other words, if the user is not authenticated with the distribution device 12 (in the case of an unauthorized viewer), the related content linked to the broadcast content cannot be acquired, so only the broadcast content that anyone can view is output. Is done.

  Through the above recording medium playback processing, the television receiver 14 calculates a feature amount when the content with CM recorded on the medium 61 is played back normally, and based on the feature amount, the storage address of the related content is calculated. Information and key information can be acquired, and further related content linked to broadcast content can be newly acquired based on the storage address information.

  According to the present invention, the distribution device 12 calculates a feature quantity from the content area and the CM area, creates a database by associating the calculated feature quantity, storage address information of related content, and key information into a database. It is possible to realize a system for searching related contents using as a keyword. On the other hand, in order for viewers to receive higher quality services (to obtain related content), viewers should naturally watch commercials without skipping commercials or switching to other channels. Become.

  Further, according to the present invention, the content providing apparatus 11 may appropriately regenerate related content, and the distribution apparatus 12 may store the latest related content. The related content re-storing process in that case will be described with reference to the flowchart of FIG.

  In step S101, the content production unit 21 of the content providing apparatus 11 newly provides when the broadcast content that has already been produced (for example, already produced by the process of step S2 in FIG. 6) is normally viewed. Reproduce related content linked to broadcast content for this purpose. In step S102, the key information generation unit 31 of the distribution apparatus 12 searches for generated key information (for example, generated in the process of step S5 in FIG. 6). In step S103, the encryption unit 32 encrypts the related content re-produced in the process of step S101 using the key information searched in the process of step S102. In step S104, the encryption unit 32 stores the related content encrypted in the process of step S103 in the storage unit 33.

  Through the related content re-storage process described above, the distribution device 12 can always provide the latest content to the viewer. For this reason, viewers can naturally watch commercials without losing interest.

  In the above, the content providing apparatus 11 distributes broadcast content, and the distribution apparatus 12 distributes related content linked to the broadcast content. However, the content providing apparatus 11 distributes both broadcast content and related content. You may make it deliver.

  The series of processes described above can be executed by hardware, or can be executed by software using a personal computer or the like. In this case, for example, the content providing apparatus 11, the distribution apparatus 12, the television receiver 14, and the recording apparatus 15 include a computer 200 as shown in FIG.

  In FIG. 14, a CPU (Central Processing Unit) 201 executes various processes according to a program stored in a ROM (Read Only Memory) 202 or a program loaded from a storage unit 208 to a RAM (Random Access Memory) 203. To do. The RAM 203 also appropriately stores data necessary for the CPU 201 to execute various processes.

  The CPU 201, the ROM 202, and the RAM 203 are connected to each other via the bus 204. An input / output interface 205 is also connected to the bus 204.

  The input / output interface 205 includes an input unit 206 including a keyboard and a mouse, a display including a CRT (Cathode Ray Tube) and an LCD (Liquid Crystal display), an output unit 207 including a speaker, and a hard disk. A communication unit 209 including a storage unit 208 and a modem is connected. The communication unit 209 performs communication processing via the network 13 including the Internet.

  A drive 210 is connected to the input / output interface 205 as necessary, and a removable medium 211 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory is appropriately attached, and a computer program read from them is It is installed in the storage unit 208 as necessary.

  When the above-described series of processing is executed by software, a program constituting the software is installed from a network or a recording medium.

  As shown in FIG. 14, the recording medium is distributed to distribute the program to the user separately from the apparatus main body, and includes a magnetic disk (including a floppy disk (registered trademark)) on which the program is recorded. Removable media consisting of optical disks (including CD-ROM (compact disk-read only memory), DVD (digital versatile disk)), magneto-optical disks (including MD (mini-disk) (registered trademark)), or semiconductor memory In addition to the configuration 211, the configuration includes a ROM 202 on which a program is recorded and a hard disk included in the storage unit 208, which is distributed to the user in a state of being incorporated in the apparatus main body in advance.

  In the present specification, the step of describing the program stored in the recording medium is not limited to the processing performed in chronological order in the order in which it is included, but is not necessarily processed in chronological order, either in parallel or individually. The process to be executed is also included.

  Further, in this specification, the system represents the entire apparatus composed of a plurality of apparatuses.

It is a figure which shows the structural example of one Embodiment of the delivery system to which this invention is applied. It is a block diagram which shows the example of an internal structure of a delivery system. It is a figure which shows the example of a memory | storage of related content. It is a figure explaining the calculation process of a feature-value. It is a figure which shows the example of accumulation | storage of the information registered into a database. It is a flowchart explaining a broadcast content delivery process. It is a flowchart explaining a content reception process. It is a flowchart explaining a related content delivery process. It is a figure explaining the acquisition process of storage address information and key information. It is a flowchart explaining a content recording process. It is a flowchart explaining a recorded content reproduction process. It is a flowchart explaining a recording media reproduction process. It is a flowchart explaining a related content re-storing process. It is a block which shows the structural example of a computer.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Distribution system, 11 Content provision apparatus, 12 Distribution apparatus, 13 Network, 14 Television receiver, 15 Recording apparatus, 16 Advertiser, 21 Content production part, 22 Key information generation part, 23 Encryption part, 24 Storage address acquisition Unit, 25 decoding information addition unit, 26 storage unit, 27 control unit, 28 transmission unit, 41 storage unit, 42 control unit, 42 transmission / reception unit, 51 antenna, 52 tuner, 53 demodulation unit, 54 use unit, 55 feature amount calculation unit , 56 related content information acquisition unit, 57 authentication processing unit, 58 related content acquisition unit, 59 decoding unit, 60 drive, 61 media, 71 image processing unit, 72 output unit, 73 combining unit, 81 antenna, 82 tuner, 83 demodulation Department, 84 Use Department, 85 Special The amount calculating unit, 86 related content information acquisition unit, 87 the authentication processing unit, 88 related content acquisition section, 89 decoding section, 91 image processing unit, 92 output unit, 93 recording unit, 94 HDD, 95 playback unit 96 combining unit

Claims (28)

In a content distribution system including a content distribution device that distributes content in which an advertisement is inserted and a content reception device that receives the content,
The content distribution device includes:
Storage means for storing related content related to advertisement excluded content obtained by excluding the inserted advertisement among the content;
First calculating means for calculating a feature amount of the advertisement inserted into the content and a part of the advertisement excluded content existing before and after the advertisement ;
Registration means for associating and registering the address information of the related content stored in the storage means and the feature amount calculated by the calculation means in a database;
First distribution means for distributing the content;
Second distribution means for searching for the address information registered in the database by the registration means in response to a first request from the content receiving device, and for distributing the related address information obtained by the search ; ,
In response to a second request from the content receiving device, the related content stored in the storage means is searched, and the third distribution means for distributing the related content obtained by the search , and
The content receiving device is:
First receiving means for receiving the content;
Output means for outputting the content received by the first receiving means;
A second calculating means for calculating the characteristic amount of the portion of the ad exclusion contents existing before and after the advertisements are inserted before Symbol content output, and the advertisement by the output means,
First request means for requesting delivery of the address information of the related content based on the feature amount calculated by the second calculation means;
Second receiving means for receiving the address information distributed in response to a request by the first requesting means;
Second request means for requesting delivery of the related content based on the address information received by the second receiving means;
And a third receiving means for receiving the related content distributed in response to the request by the second request means. In a content distribution device that distributes content in which advertisements are inserted,
Storage means for storing related content related to advertisement excluded content obtained by excluding the inserted advertisement among the content;
Calculating means for calculating a feature amount of the advertisement inserted into the content and a part of the advertisement excluded content existing before and after the advertisement ;
Registration means for associating and registering the address information of the related content stored in the storage means and the feature amount calculated by the calculation means in a database;
First distribution means for distributing the content;
Based on the feature amount calculated by the content receiving device, the registration unit registers in the database in response to a first request from the content receiving device that requests distribution of the address information of the related content. Second addressing means for retrieving the address information and delivering the address information obtained by the search ;
Based on the address information distributed in response to the first request and received by the content receiver, the storage is requested in response to a second request from the content receiver that requests distribution of the related content. A content distribution apparatus comprising: a third distribution unit that searches for the related content stored in the unit and distributes the related content obtained by the search . Generating means for generating key information for encrypting the related content;
An encryption unit for encrypting the related content based on the key information generated by the generation unit;
The content distribution apparatus according to claim 2, wherein the storage unit stores the related content encrypted by the encryption unit. The registration means further registers the key information generated by the generation means in the database in association with the address information and the feature amount,
The content distribution apparatus according to claim 3, wherein the second distribution unit further distributes the key information registered in the database. An authentication means for performing an authentication process with the content receiving device;
The second distribution unit, when authenticated by the authentication unit, searches the address information according to the feature amount included in the first request, and distributes the address information obtained by the search. 2. The content distribution device according to 2. The content distribution apparatus according to claim 2, wherein the third distribution unit searches for the related content according to address information included in the second request, and distributes the related content obtained by the search . In a content distribution method of a content distribution apparatus that distributes content in which an advertisement is inserted,
Storing the related content related to the advertisement excluded content obtained by excluding the inserted advertisement among the content;
A calculation step of calculating a feature amount of the advertisement inserted into the content and a part of the advertisement excluded content existing before and after the advertisement ;
A registration step of associating the address information of the related content stored by the processing of the storage step with the feature amount calculated by the processing of the calculation step and registering it in a database;
A first distribution step of distributing the content;
In response to a first request from the content receiving device that requests distribution of the address information of the related content based on the feature amount calculated by the content receiving device, the registration step performs processing in the database. A second distribution step of searching for the registered address information and distributing the address information obtained by the search ;
Based on the address information distributed in response to the first request and received by the content receiver, the storage is requested in response to a second request from the content receiver that requests distribution of the related content. A content distribution method comprising: a third distribution step of searching for the related content stored by the processing of the step and distributing the related content obtained by the search . In a program for causing a computer to perform content distribution processing of a content distribution device that distributes content in which an advertisement is inserted ,
Storing the related content related to the advertisement excluded content obtained by excluding the inserted advertisement among the content;
A calculation step of calculating a feature amount of the advertisement inserted into the content and a part of the advertisement excluded content existing before and after the advertisement ;
A registration step of associating the address information of the related content stored by the processing of the storage step with the feature amount calculated by the processing of the calculation step and registering it in a database;
A first distribution step of distributing the content;
In response to a first request from the content receiving device that requests distribution of the address information of the related content based on the feature amount calculated by the content receiving device, the registration step performs processing in the database. A second distribution step of searching for the registered address information and distributing the address information obtained by the search ;
Based on the address information distributed in response to the first request and received by the content receiver, the storage is requested in response to a second request from the content receiver that requests distribution of the related content. A program for causing a computer to perform a content distribution process including: a third distribution step of retrieving the related content stored by the processing of the step and distributing the related content obtained by the search is recorded. A computer-readable recording medium. In a program for causing a computer to perform content distribution processing of a content distribution device that distributes content in which an advertisement is inserted ,
Storing the related content related to the advertisement excluded content obtained by excluding the inserted advertisement among the content;
A calculation step of calculating a feature amount of the advertisement inserted into the content and a part of the advertisement excluded content existing before and after the advertisement ;
A registration step of associating the address information of the related content stored by the processing of the storage step with the feature amount calculated by the processing of the calculation step and registering it in a database;
A first distribution step of distributing the content;
In response to a first request from the content receiving device that requests distribution of the address information of the related content based on the feature amount calculated by the content receiving device, the registration step performs processing in the database. A second distribution step of searching for the registered address information and distributing the address information obtained by the search ;
Based on the address information distributed in response to the first request and received by the content receiver, the storage is requested in response to a second request from the content receiver that requests distribution of the related content. A program for causing a computer to perform a content distribution process including: a third distribution step of retrieving the related content stored by the process of step and distributing the related content obtained by the search . In the content receiving device that receives the content in which the advertisement is inserted,
First receiving means for receiving the content distributed from the content distribution device;
Output means for outputting the content received by the first receiving means;
Said output means the ads that are inserted before Symbol content output by, and out of the content, a advertisement exclusion content obtained by excluding the advertisement that has been inserted, existing before and after the advertisement Calculating means for calculating a feature amount for a part of the advertisement excluded content ;
First request means for requesting the content distribution device to distribute address information of related content related to the advertisement-excluded content based on the feature amount calculated by the calculation means;
Second receiving means for receiving the address information distributed in response to a request by the first requesting means;
Based on the address information received by the second receiving means, second request means for requesting the content distribution device to distribute the related content;
And a third receiving means for receiving the related content distributed in response to the request by the second request means. The second receiving means further receives key information for decrypting the related content,
The third receiving means receives the related content encrypted,
The content reception according to claim 10, further comprising decryption means for decrypting the encrypted related content received by the third reception means based on the key information received by the second reception means. apparatus. An authentication unit that performs authentication processing with the content distribution device;
The content receiving apparatus according to claim 10, wherein when authenticated by the authenticating unit, the second receiving unit receives the address information distributed in response to a request by the first requesting unit. The content receiving apparatus according to claim 10, further comprising a combining unit that combines the advertisement excluded content included in the content output by the output unit and the related content received by the third receiving unit. Recording means for recording the content received by the first receiving means and the related content received by the third receiving means;
Replaying means for replaying the content recorded in the recording means,
The calculating means calculates a feature amount for a portion of the ad exclusion content present before and after the advertisements are inserted before Symbol content reproduced, and the advertisement by the reproducing means,
The first requesting unit requests distribution of the address information based on the feature amount calculated by the calculating unit,
The second receiving means receives the address information distributed in response to the request by the first request means,
The second requesting unit requests distribution of the related content based on the address information received by the second receiving unit,
The content receiving apparatus according to claim 10, wherein the third receiving unit receives the related content distributed in response to a request by the second request unit. The content receiving apparatus according to claim 14, further comprising a combining unit that combines the advertisement excluded content included in the content reproduced by the reproducing unit and the related content received by the third receiving unit. The recording means further comprises a determination means for determining whether related content corresponding to the feature amount is already recorded,
The content reception apparatus according to claim 14, wherein when the determination unit determines that the related content has already been recorded, the first request unit does not make a distribution request for the address information. If the determination unit determines that related content corresponding to the feature amount has already been recorded, the determination unit further determines whether it is possible to acquire related content that is newer than the related content that has already been recorded. The content receiving device according to claim 16. When the determination unit determines that the new related content can be acquired, the first request unit requests distribution of address information of the new related content based on the feature amount. ,
The second receiving means receives the address information of the new related content that has been distributed in response to the request by the first requesting means,
The second request means requests distribution of the new related content based on address information of the new related content,
The third receiving means receives the new related content distributed in response to the request by the second request means,
The content receiving apparatus according to claim 17, wherein the recording unit updates the related content already recorded to the new related content received by the third receiving unit. In the content receiving method of the content receiving device that receives the content in which the advertisement is inserted,
A first receiving step of receiving the content distributed from the content distribution device;
An output step of outputting the content received by the processing of the first reception step;
Wherein it is inserted before Symbol content outputted by the processing of the outputting step advertisements, and of the content, a advertisement exclusion content obtained by excluding the advertisement is inserted, before and after the advertisement A calculation step of calculating a feature amount for a part of the advertisement-excluded content existing ;
A first requesting step for requesting the content distribution device to distribute address information of related content related to the advertisement-excluded content based on the feature amount calculated by the processing of the calculating step;
A second receiving step of receiving the address information distributed in response to the request by the processing of the first request step;
A second requesting step for requesting the content distribution device to distribute the related content based on the address information received by the processing of the second receiving step;
And a third receiving step of receiving the related content distributed in response to the request by the processing of the second requesting step. In a program for causing a computer to perform content reception processing of a content receiving device that receives content in which an advertisement is inserted,
A first receiving step of receiving the content distributed from the content distribution device;
An output step of outputting the content received by the processing of the first reception step;
Wherein it is inserted before Symbol content outputted by the processing of the outputting step advertisements, and of the content, a advertisement exclusion content obtained by excluding the advertisement is inserted, before and after the advertisement A calculation step of calculating a feature amount for a part of the advertisement-excluded content existing ;
A first requesting step for requesting the content distribution device to distribute address information of related content related to the advertisement-excluded content based on the feature amount calculated by the processing of the calculating step;
A second receiving step of receiving the address information distributed in response to the request by the processing of the first request step;
A second requesting step for requesting the content distribution device to distribute the related content based on the address information received by the processing of the second receiving step;
A computer-readable program storing a program for causing a computer to perform a content reception process including a third reception step of receiving the related content distributed in response to the request by the process of the second request step. Possible recording media. In a program for causing a computer to perform content reception processing of a content receiving device that receives content in which an advertisement is inserted,
A first receiving step of receiving the content distributed from the content distribution device;
An output step of outputting the content received by the processing of the first reception step;
Wherein it is inserted before Symbol content outputted by the processing of the outputting step advertisements, and of the content, a advertisement exclusion content obtained by excluding the advertisement is inserted, before and after the advertisement A calculation step of calculating a feature amount for a part of the advertisement-excluded content existing ;
A first requesting step for requesting the content distribution device to distribute address information of related content related to the advertisement-excluded content based on the feature amount calculated by the processing of the calculating step;
A second receiving step of receiving the address information distributed in response to the request by the processing of the first request step;
A second requesting step for requesting the content distribution device to distribute the related content based on the address information received by the processing of the second receiving step;
A program for causing a computer to perform a content reception process including a third reception step of receiving the related content distributed in response to a request by the process of the second request step. In a content playback apparatus that plays back content that has been recorded on a recording medium and has an advertisement inserted therein,
Reading means for reading the content recorded on the recording medium;
Output means for outputting the content read by the reading means;
Said output means the ads that are inserted before Symbol content output by, and out of the content, a advertisement exclusion content obtained by excluding the advertisement that has been inserted, existing before and after the advertisement Calculating means for calculating a feature amount for a part of the advertisement excluded content ;
First request means for requesting the content distribution apparatus to distribute address information of related content related to the advertisement-excluded content, based on the feature amount calculated by the calculation means;
Second receiving means for receiving the address information distributed in response to a request by the first requesting means;
Based on the address information received by the second receiving means, second request means for requesting the content distribution device to distribute the related content;
And a third receiving means for receiving the related content distributed in response to the request by the second requesting means. The second receiving means further receives key information for decrypting the related content,
The third receiving means receives the related content encrypted,
The content reproduction according to claim 22, further comprising decryption means for decrypting the encrypted related content received by the third reception means based on the key information received by the second reception means. apparatus. An authentication unit that performs authentication processing with the content distribution device;
23. The content reproduction apparatus according to claim 22, wherein, when authenticated by the authentication unit, the second receiving unit receives the address information distributed in response to a request from the first request unit. The content reproduction apparatus according to claim 22, further comprising a combining unit that combines the advertisement excluded content included in the content output by the output unit and the related content received by the third receiving unit. In a content playback method of a content playback device that plays back content that is recorded on a recording medium and in which an advertisement is inserted,
A reading step of reading the content recorded on the recording medium;
An output step of outputting the content read by the processing of the read step;
Wherein it is inserted before Symbol content outputted by the processing of the outputting step advertisements, and of the content, a advertisement exclusion content obtained by excluding the advertisement is inserted, before and after the advertisement A calculation step of calculating a feature amount for a part of the advertisement-excluded content existing ;
A first requesting step for requesting the content distribution device to distribute address information of related content related to the advertisement-excluded content based on the feature amount calculated by the processing of the calculating step;
A second receiving step of receiving the address information distributed in response to the request by the processing of the first request step;
A second requesting step for requesting the content distribution device to distribute the related content based on the address information received by the processing of the second receiving step;
And a third reception step of receiving the related content distributed in response to the request by the processing of the second request step. In a program for causing a computer to perform content reproduction processing of a content reproduction device that reproduces content in which an advertisement is inserted and recorded on a recording medium.
A reading step of reading the content recorded on the recording medium;
An output step of outputting the content read by the processing of the read step;
Wherein it is inserted before Symbol content outputted by the processing of the outputting step advertisements, and of the content, a advertisement exclusion content obtained by excluding the advertisement is inserted, before and after the advertisement A calculation step of calculating a feature amount for a part of the advertisement-excluded content existing ;
A first requesting step for requesting the content distribution device to distribute address information of related content related to the advertisement-excluded content based on the feature amount calculated by the processing of the calculating step;
A second receiving step of receiving the address information distributed in response to the request by the processing of the first request step;
A second requesting step for requesting the content distribution device to distribute the related content based on the address information received by the processing of the second receiving step;
And a third reading step of receiving the related content distributed in response to the request by the processing of the second request step. Possible recording media. In a program for causing a computer to perform content reproduction processing of a content reproduction device that reproduces content in which an advertisement is inserted and recorded on a recording medium.
A reading step of reading the content recorded on the recording medium;
An output step of outputting the content read by the processing of the read step;
Wherein it is inserted before Symbol content outputted by the processing of the outputting step advertisements, and of the content, a advertisement exclusion content obtained by excluding the advertisement is inserted, before and after the advertisement A calculation step of calculating a feature amount for a part of the advertisement-excluded content existing ;
A first requesting step for requesting the content distribution device to distribute address information of related content related to the advertisement-excluded content based on the feature amount calculated by the processing of the calculating step;
A second receiving step of receiving the address information distributed in response to the request by the processing of the first request step;
A second requesting step for requesting the content distribution device to distribute the related content based on the address information received by the processing of the second receiving step;
A program for causing a computer to perform a content reproduction process including a third reception step of receiving the related content distributed in response to a request by the process of the second request step.

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