JP2008092526A - Digital broadcast playback device, viewing history collection system, and viewing history collection method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital broadcast reproducing device for digital broadcasting in which, when only a part of sections of contents are viewed utilizing segment metadata, the viewing is reflected on audience rating. <P>SOLUTION: A digital broadcast reproducing device 105 has a configuration comprising: a content receiving unit 201 for receiving contents of digital broadcasting; a content storage unit 205 for storing contents; a content reproducing unit 202 for reproducing contents stored in the content storage unit 205 by utilizing the segment metadata; a reproduction segment information extracting unit 206 for extracting reproduction segment information indicating a reproduced segment when contents are reproduced by the content reproducing unit 202; a viewing history storage unit 207 which associates the reproduction segment information extracted by the reproduction segment information extracting unit 206 with content identification information of the reproduced contents and stores them as a viewing history; and a viewing history transmitting unit 208 which transmits the viewing history to a viewing history collection center. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a digital broadcast playback device for digital broadcasting, a viewing history collection system, and a viewing history collection method.

  In conventional television broadcasting, audience rating survey terminals are installed in specific households extracted by audience rating survey companies to collect viewing information. As another method, viewing information is collected by uploading using the Internet or a telephone line, or by visiting a surveyed household by a researcher. Based on the collected information, the audience rating research company calculates the audience rating in units of a minimum of one minute, and transmits it to an advertising company, a television station, etc. via FAX or the Internet.

  The calculated audience rating is used as information for a broadcasting station, an advertising company, and an advertiser to grasp the number of CM (commercial) viewing households. Broadcasting stations, advertising companies, and advertisers use audience ratings as a factor in determining advertising fees. Therefore, it is important for broadcasting stations, advertising companies, and advertisers to accurately grasp the audience rating.

  In server-type broadcasting scheduled to start broadcasting around 2007, a service is provided in which broadcast video / audio and information and video / audio and information acquired from communication are temporarily stored in a receiver. One of the services is a digest that uses segment metadata, which is information about the sections of the broadcast video, to watch only a part of the stored video, or to extract and watch only the highlights of the program Viewing and so on are expected.

  Here, the metadata is data describing information about the content, not the content itself. The segment metadata is metadata of a section when a moving image is divided into a plurality of sections. The segment metadata includes information on the content of the image in the target section (also referred to as semantic metadata, for example, a segment title), and information on the start time and end time of the target section (also referred to as section metadata).

As described above, for example, Patent Document 1 discloses a method for collecting viewing history in a form in which accumulated content is reproduced. In the method described in Patent Document 1, identification information is added to each broadcast content, and transmitted together with the viewing data collection program. When one broadcast content is received and displayed, the viewing data collection program is executed. To collect viewing history.
JP 2002-217850 A

  However, the method described in Patent Literature 1 collects viewing histories in units of content, as in the case of conventional television broadcasting. As described above, in the future, it is expected that the case of viewing only a partial section of content using segment metadata provided by a service provider will increase. For this reason, it is expected that content-based viewing history collection will not match the viewer's actual viewing behavior.

  In view of the above background, the present invention provides a digital broadcast playback device, a viewing history collection system, and a viewing history that can collect viewing history for each segment when only a partial section of content accumulated using segment metadata is viewed. An object is to provide a history collection method.

  The digital broadcast reproduction apparatus of the present invention includes a content receiving unit that receives digital broadcast content to which content identification information for identifying content is added, a content storage unit that stores the content received by the content receiving unit, A content playback unit that plays back the content stored in the content storage unit using segment metadata, and a playback segment that extracts playback segment information indicating the played segment when the content is played back by the content playback unit An information extraction unit, a viewing history storage unit that stores the playback segment information extracted by the playback segment information extraction unit and the content identification information of the played content in association with each other, and stores the viewing history as a viewing history. With a viewing history transmitter to send to the center Having the configuration.

  With this configuration, when content is reproduced using segment metadata, reproduction segment information indicating the reproduced segment is extracted, and a viewing history is generated based on the extracted reproduction segment information. Since the viewing history is transmitted to the viewing history collection center, the viewing history for each segment can be collected in the viewing history collection center. In addition, since the playback segment information, which is information that can identify the segment in the content, is associated with the content identifier and used as the viewing history, the segment viewed by the viewer can be uniquely identified by the viewing history.

  In the digital broadcast playback apparatus of the present invention, the playback segment information extraction unit has a configuration for extracting information indicating the start time and end time of the playback segment or identification information for specifying the playback segment as playback segment information.

  As playback segment information, a segment can be uniquely specified by using information indicating the start time and end time of the playback segment, or by using identification information for specifying the playback segment.

  In the digital broadcast reproduction device of the present invention, the reproduction segment information extraction unit is configured to determine information for identifying a group of the plurality of reproduction segments or a reproduction order of the reproduction segments when the plurality of reproduction segments are continuously reproduced. The information to be shown is extracted.

  With this configuration, when the accumulated content is reproduced using a plurality of segment metadata, additional viewing history such as viewing units and viewing order can be transmitted to the viewing history collection center.

  In the digital broadcast reproduction apparatus of the present invention, the reproduction segment information extraction unit has a configuration for extracting information indicating whether or not the content of the reproduced segment is CM.

  With this configuration, information on whether or not the content of the reproduced segment is CM can be transmitted to the viewing history collection center as an additional viewing history.

  The digital broadcast reproduction apparatus of the present invention includes a personal information transmission availability storage unit that stores information indicating whether or not transmission of personal information to the viewing history collection center is permitted as the viewing history, and the viewing history The transmission unit determines whether transmission of personal information to the viewing history collection center is permitted based on information stored in the personal information transmission availability storage unit, and transmission of personal information is permitted. In this case, personal information is added to the viewing history and transmitted to the viewing history collection center.

  With this configuration, the viewing history collection center can identify the viewing history provider.

  The digital broadcast reproducing apparatus of the present invention uses a CAS-ID (Conditional Access System ID) as the personal information.

  With this configuration, it is possible to identify an individual with a CAS-ID, and there is no possibility of leaking personal information such as a name and address.

  The viewing history collection system of the present invention receives the viewing history transmitted from the digital broadcast playback device and the digital broadcast playback device, and calculates the segment viewing rate in the content based on the received viewing history. And a collection center.

  With this configuration, the viewing history collection center can calculate the section viewing rate in the content based on the viewing history information received from the digital broadcast playback device.

  The viewing history collection system of the present invention receives the above-described digital broadcast playback device and the viewing history transmitted from the digital broadcast playback device, and calculates the segment audience rating in the content based on the received viewing history. A history collection center, and the viewing history collection center segments the second and subsequent viewing histories when the same viewer views the same content a plurality of times based on the personal information added to the viewing history information. It has the structure excluded from calculation of audience rating.

  With this configuration, even when the same viewer views the same content a plurality of times, the viewing rate is calculated with the viewer viewing the content once. Thus, the audience rating is not unduly biased by a specific viewer viewing multiple times.

  The viewing history collection method of the present invention includes a content receiving step for receiving digital broadcast content to which content identification information for identifying content is added, and a content storage for storing the content received in the content receiving step in a content storage unit. A content playback step of playing back the content stored in the content storage unit using segment metadata, and playback segment information indicating a segment played back when the content is played back in the content playback step A reproduction history information extraction step to extract, a reproduction history information extracted in the reproduction segment information extraction step, and a content history information of the reproduced content in association with each other and stored as a viewing history in a viewing history storage unit It has a step, the configuration that includes a viewing history transmission step of transmitting the viewing history in the viewing history collection center.

  With this configuration, the viewing history for each segment can be collected in the viewing history collection center as in the digital broadcast receiving apparatus of the present invention.

  In the viewing history collection method of the present invention, the playback segment information extraction step has a configuration in which information indicating the start time and end time of the playback segment or identification information for specifying the playback segment is extracted as playback segment information.

  As playback segment information, a segment can be uniquely specified by using information indicating the start time and end time of the playback segment, or by using identification information for specifying the playback segment.

  In the viewing history collection method of the present invention, the playback segment information extraction step includes information for identifying a group of a plurality of playback segments or a playback order of the playback segments when a plurality of playback segments are continuously played back. The information to be shown is extracted.

  With this configuration, as with the digital broadcast receiving apparatus of the present invention, additional viewing history such as viewing units and viewing order can be transmitted to the viewing history collection center.

  In the viewing history collection method of the present invention, the reproduction segment information extraction step has a configuration for extracting information indicating whether or not the content of the reproduced segment is CM.

  With this configuration, similarly to the digital broadcast receiving apparatus of the present invention, information on whether or not the content of the reproduced segment is CM can be transmitted as an additional viewing history to the viewing history collection center.

  In the viewing history collection method of the present invention, the personal information transmission availability is stored in the personal information transmission availability storage unit as information indicating whether or not transmission of personal information to the viewing history collection center is permitted as the viewing history information. A storage step, wherein the viewing history transmission step determines whether or not transmission of personal information to the viewing history collection center is permitted based on information stored in the personal information transmission availability storage unit, When transmission of information is permitted, personal information is added to the viewing history and transmitted to the viewing history collection center.

  With this configuration, similarly to the digital broadcast receiving apparatus of the present invention, the viewing history collection center can identify the viewing history provider.

  The viewing history collection method of the present invention uses CAS-ID (Conditional Access System ID) as the personal information.

  This configuration eliminates the possibility of leaking personal information such as name and address as in the digital broadcast receiving apparatus of the present invention.

  The present invention extracts reproduction segment information indicating a reproduced segment when content that uses segment metadata is reproduced, generates a viewing history based on the extracted reproduction segment information, and generates the viewing history as the viewing history. Since it transmits to a collection center, it has the outstanding effect that the viewing history for every segment can be collected in a viewing history collection center.

  Hereinafter, a digital broadcast playback device, a viewing history collection system, and a viewing history collection method according to an embodiment of the present invention will be described with reference to the drawings.

  The viewing history collection system 1 is obtained by adding a viewing collection function to a digital broadcasting system that realizes digital broadcasting. The viewing history collection system 1 collects the viewing history without the user's operation when the digital broadcast playback device 105 plays back the content stored using the segment metadata.

  FIG. 1 is a diagram illustrating a configuration of the digital broadcast reproduction device 105. With reference to FIG. 1, the entire configuration of the viewing history collection system 1 will be described before describing the digital broadcast reproduction device 105 of the present embodiment.

  FIG. 2 is a diagram illustrating a configuration of the viewing history collection system 1. The viewing history collection system 1 collects viewing histories from a broadcast / communication station 100 that provides digital broadcast content, a digital broadcast playback device 105 that receives and plays back digital broadcast content, and a plurality of digital broadcast playback devices 105. Viewing history collection center 106.

  The broadcast / communication station 100 transmits the broadcast content to each digital broadcast reproduction apparatus 105 through two routes. First, the broadcasting / communication station 100 transmits contents to the digital broadcast reproduction apparatus 105 via a broadcasting station (a satellite or a radio tower such as Tokyo Tower) using the broadcasting equipment 101. Secondly, the broadcasting / communication station 100 transmits content to the digital broadcast reproducing apparatus 105 via the Internet network 104 using the communication facility 102. The content transmitted by the broadcasting / communication station 100 includes content identification information for identifying the content.

  The digital broadcast reproduction device 105 reproduces the content received from the broadcasting / communication station using the segment metadata, stores the viewing history in the digital broadcast reproduction device 105, and uses the stored viewing history as the viewing history collection timing. The data is transmitted to the viewing history collection center 106 via the Internet network 104.

  FIG. 1 is a diagram illustrating a configuration of the digital broadcast reproduction device 105. The digital broadcast reproduction apparatus 105 includes a content reception unit 201, a content reproduction unit 202, a content reproduction operation reception unit 203, a personal information storage unit 204, a content storage unit 205, a reproduction segment information extraction unit 206, a viewing history A storage unit 207, a viewing history transmission unit 208, and a control unit 209 are provided.

  The content receiving unit 201 receives content transmitted from the broadcasting / communication station 100 via the broadcasting station 103 or the Internet network 104. The content receiving unit 201 stores the content in the content storage unit 205 after performing appropriate processing such as decoding on the received content.

  FIG. 3 is a diagram illustrating an example of content stored in the content storage unit. The content A301 includes an image of “person a” in the section “00: 00: 00-00: 04: 00”, an image of “person b” in the section “00: 04: 00-00: 06: 00”, “CMa” video in the section “00: 06: 00-00: 08: 00”, video “person a” in the section “00: 08: 0-00: 12: 00”, “00:12 The video of “person c” is included in the section of “0: 00-00: 14: 00”, and the video of “CM i” is included in the section of “00: 14: 00-00: 16: 00”. Another content B302 is a video of “CM3” in a section “00: 00: 00-00: 02: 00” and a video of “person a” in a section “00: 02: 00-00: 10: 30”. , “00: 10: 30-00: 16: 00” includes the video of “CMA”. However, in both the content A301 and the content B302, the video is not divided, and FIG. 3 shows that a video of a person or CM is included in a predetermined time zone of the content.

  The content reproduction operation receiving unit 203 receives a content reproduction instruction using segment metadata from a remote controller or the like. The content reproduction operation reception unit 203 notifies the control unit 209 of the received content reproduction instruction information.

  FIG. 4 is a diagram illustrating an example of segment metadata used for content playback. One row represents one segment metadata. The segment metadata includes information on a segment identifier 401, a segment title 402, a segment start point 403, a segment end point 404, a target content identifier 405, and a segment group 406. The segment identifier 401 is an identifier that identifies a segment. The segment identifier 401 is unique within the content that includes the segment. The segment title 402 is information indicating the content of the video included in the segment. The segment start point 403 and the segment end point 404 are information indicating the start point and end point of the time zone in which the segment is played back. The target content identifier 405 is information for specifying content including the segment. The segment group 406 is information indicating content that is continuously played back.

  The item 401 indicating the identification of the segment metadata in the first line 400 of FIG. 4 is “1”, the character string of the segment title 402 is “CMA”, and the start point 403 of the segment metadata section is “00: 06: 00: 00”. The end point 404 of the segment metadata section is “00:08:00”, the target content 405 of this segment metadata is “content A”, and the group 406 to which this segment metadata belongs is “1” Represents. When the content is reproduced using the segment metadata 400, the section of the content A301 from “00:06:00 to 00: 08: 0” is reproduced. When the content is reproduced using the information of the segment group 406, the content is sequentially reproduced according to the segment metadata having the same segment group value.

  The control unit 209 interprets the segment metadata instructed to reproduce, and reproduces the content stored in the content storage unit 205 according to the segment metadata section information.

  The content reproduction unit 202 displays the content (see FIG. 3) stored in the content storage unit 205 according to a content reproduction instruction using segment metadata input by an operation of a remote controller or the like.

  The playback segment information extraction unit 206 extracts information such as a playback section as viewing history information when playback using the segment metadata is completed, and stores the information in the viewing history storage unit 207.

  FIG. 5 is a diagram illustrating an example of information in which viewing history information transmitted to the viewing history collection center 106 is associated with personal information. One line represents a viewing history of reproducing content using one segment metadata. The viewing history information includes a segment identifier 501, a viewing start section 502, a viewing end section 503, a viewing order 504, a content identifier 505, a viewing group 506, a CM identification 507, and a CAS-ID 508. The segment identifier 501 is an identifier that identifies a segment. The segment identifier 501 is the same information as the segment identifier 401 included in the segment metadata shown in FIG. The viewing start section 502 and the viewing end section 503 are information indicating the start point and end point of the viewed time zone. The viewing start section 502 and the viewing end section 503 are the same information as the segment start point 403 and segment end point 404 included in the segment data shown in FIG. The viewing order 504 is information indicating the viewing order of the segment data. The content identifier 505 is information for specifying the content including the segment. The content identifier 505 is the same information as the target content identifier 405 included in the segment metadata shown in FIG. The viewing group 506 is information for identifying continuous viewing when viewed continuously in combination with other segment metadata. The viewing group 506 is the same information as the segment group 406 included in the segment data shown in FIG. The CM identification 507 is information indicating whether the segment data is a CM. The CAS-ID 508 is information for identifying an individual who has viewed the segment data.

  The segment identifier 501 for identifying the segment metadata used for viewing the content in the first line 500 of FIG. 5 is “1”, and the start point 502 in the content reproduced using the segment metadata is the top of the content “00:06:00” indicating that it is 6 minutes after the end of the content, and “00:08” indicating that the end point 503 in the content reproduced using the segment metadata is 8 minutes after the beginning of the content. : 00 ”, the content identifier 505 reproduced using this segment metadata is“ content A ”, and the viewing group information 506 for identifying continuous viewing when combined with other segment metadata is“ 1 ”, the information 504 for identifying the viewing order within the viewing group is“ 1 ”indicating that it was reproduced first. The information 507 for identifying whether the section is a CM indicates “CM” indicating that the section is a CM, and the CAS-ID 507 of the digital broadcast reproduction apparatus 105 that provides this viewing history indicates “999-999”.

  The viewing history transmission unit 208 retrieves the viewing history from the viewing history storage unit 207 at the timing of transmitting the viewing history to the viewing history collection center 106, associates it with the personal information retrieved from the personal information storage unit 204, and collects the viewing history. Transmit to the center 106. The timing of transmitting the viewing history may be regular or when a predetermined amount of viewing history is accumulated.

  Next, the viewing history collection center 106 will be described. The viewing history collection center 106 stores the viewing history received from the digital broadcast reproduction device 105 via the Internet network 104. The viewing history collection center 106 calculates the segment audience rating and CM audience rating of each content based on the program information received from the broadcasting / communication station 100 and the content identification mapping table, and notifies the broadcasting / communication 100 of it.

  FIG. 6 is a diagram illustrating a configuration of the viewing history collection center 106. The audience rating collection center 600 includes a viewing history receiving unit 601, a viewing history storage unit 602, an audience rating calculation unit 603, an audience rating storage unit 604, a control unit 605, an audience rating transmission unit 606, and content information reception. Unit 607 and a content information storage unit 608.

  The viewing history receiving unit 601 receives viewing history information transmitted from the digital broadcast reproduction device 105 via the Internet network 104. The received viewing history information is stored in the viewing history storage unit 602. The content information receiving unit 607 receives a table mapping content titles and content identification information transmitted from the broadcasting / communication station 100 by broadcasting or communication. The content information receiving unit 607 stores the received content information in the content information storage unit 608.

  The audience rating calculation unit 603 calculates the audience rating based on the content information stored in the content information storage unit 608 based on the viewing history information and content information stored in the viewing history storage unit 602 in response to an instruction from the control unit 605. The result is stored in the audience rating storage unit 604. By using the content information, the audience rating obtained based on the viewing history can be associated with the name of the content. The audience rating transmission unit 606 transmits the audience rating information stored in the audience rating storage unit 604 to the broadcast / communication station 100 in response to an instruction from the control unit 605.

  FIG. 7 shows an operation of transmitting the viewing history to the viewing history collection center 106 by the digital broadcast reproduction device 105.

  The control unit 209 of the digital broadcast reproduction device 105 determines whether or not a content reproduction instruction using segment metadata has been issued (S101). When the content reproduction instruction using the segment metadata is not performed, the process returns to the standby state. When a content reproduction instruction using segment metadata is performed, the control unit 209 determines whether the designated content has been accumulated (S102). If the designated content has not been accumulated, the process returns to a standby state until the content is accumulated. When the designated content has already been accumulated, the control unit 209 starts the segment playback of the content using the designated segment metadata (S103), and plays to the playback end point of the content designated in the segment metadata. (S104). When the designated content is not accumulated, the process waits until the designated content is accumulated. When the reproduction reaches the reproduction end point of the content specified in the segment metadata, the control unit 209 determines whether the instruction is a continuous reproduction instruction using another segment metadata (S105). In the case of a continuous playback instruction using another segment metadata, the control unit 209 starts segment playback of the content using the separately specified segment metadata. When the reproduction of all the segment metadata instructed for continuous reproduction is completed, the control unit 209 associates the reproduction segment information and the content identification information and stores them in the viewing history storage unit 207 (S106). The control unit 209 of the digital broadcast playback device 105 determines whether it is a transmission timing to the viewing history collection center 106 (S107). If it is the transmission timing, it determines whether uploading of personal information is permitted (S107). S108). When uploading of personal information is permitted, the viewing history transmission unit 208 associates the viewing history information extracted from the viewing history storage unit 207 with the personal information extracted from the personal information storage unit 204 and transmits the associated information to the viewing history collection center 106. (S109). When uploading of personal information is not permitted, the viewing history transmission unit 208 extracts the viewing history information from the viewing history storage unit 207 without transmitting the personal information, and transmits the viewing history information to the viewing history collection center 106. (S110). When the transmission to the viewing history collection center 106 is completed, the control unit 209 deletes the viewing history information stored in the viewing history storage unit 207 (S111).

  Heretofore, the digital broadcast playback device 105, the viewing history collection system 1, and the viewing history collection method of the present embodiment have been described.

  The viewing history collection system 1 of the present embodiment can calculate a viewing rate when a part of content is reproduced using segment metadata. As a result, for example, even when the viewer views only the CM first and continuously views the main story, it can be reflected in the audience rating for each segment. Can be sought.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and it goes without saying that those skilled in the art can modify the above-described embodiments within the scope of the present invention.

  In the above-described embodiment, segment metadata may be used so that the next CM is not reproduced unless a button for reproducing the next CM is pressed for each CM with a remote controller or the like. Thus, it is ensured that the user is present during the CM reproduction, and the CM effect is improved. Also in this case, it is possible to collect viewing histories for each CM.

  In the above-described embodiment, CAS-ID 507 having high confidentiality is used as personal information. However, information such as a name and an address may be used as long as the information can identify a viewer.

  In the above-described embodiment, for example, viewing date and time may be included in the viewing history information. The viewing history including the viewing date and time may be collected at the viewing rate collection center and used as information for discounting the advertising fee according to the viewing date and time.

  As described above, the present invention has an effect that a viewing history for each segment can be collected when the accumulated content is reproduced using the segment metadata, and the audience rating is given to broadcast stations, advertising companies, and advertisers. It is useful as a device that collects

The block diagram which shows the structure of the principal part of the digital broadcast reproducing | regenerating apparatus in embodiment of this invention The figure which shows the structural example of the viewing-and-listening history collection system in embodiment of this invention. The figure which shows the example of the content of the content memorize | stored in the content memory | storage part The figure which shows the example of the segment metadata used in order to perform the area reproduction of content The figure which shows the example of the information which linked | related viewing history information and personal information Block diagram showing the configuration of the main part of the viewing history collection center Flow chart showing operation of viewing history collection system

Explanation of symbols

1 Viewing History Collection System 100 Broadcasting / Communication Station 102 Broadcasting Equipment 103 Broadcasting Station (Radio Tower such as Satellite and Tokyo Tower)
104 Internet Network 105 Digital Broadcasting Playback Device 106 Viewing History Collection Center 201 Content Receiving Unit 202 Content Reproducing Unit 203 Content Reproducing Operation Receiving Unit 204 Personal Information Storage Unit 205 Content Storage Unit 206 Playback Segment Information Extracting Unit 207 Viewing History Storage Unit 208 Viewing History Transmission unit 209 Control unit 301 Content A stored in content storage unit
302 Content B stored in the content storage unit
401 Segment identifier 402 Segment title 403 Segment start point 404 Segment end point 405 Target content identifier 406 Segment group 501 Segment identifier 502 Viewing start section 503 Viewing end section 504 Viewing order 505 Content identifier 506 Viewing group 507 CM identification 508 CAS-ID
600 viewing history collection center 601 viewing history receiving unit 602 viewing history storage unit 603 viewing rate calculation unit 604 viewing rate storage unit 605 control unit 606 viewing rate transmission unit 607 content information receiving unit 608 content information storage unit

Claims (14)

A content receiver for receiving digital broadcast content to which content identification information for identifying content is added;
A content storage unit for storing the content received by the content receiving unit;
A content playback unit for playing back the content stored in the content storage unit using segment metadata;
A reproduction segment information extraction unit that extracts reproduction segment information indicating a reproduced segment when content is reproduced by the content reproduction unit;
A viewing history storage unit that stores the playback segment information extracted by the playback segment information extraction unit and the content identification information of the played content as a viewing history in association with each other;
A viewing history transmitter for transmitting the viewing history to a viewing history collection center;
A digital broadcast reproducing apparatus comprising:   The digital broadcast reproduction according to claim 1, wherein the reproduction segment information extraction unit extracts information indicating a start time and an end time of a reproduction segment or identification information for specifying a reproduction segment as reproduction segment information. apparatus.   The reproduction segment information extraction unit extracts information for identifying a group of a plurality of reproduction segments or information indicating a reproduction order of the reproduction segments when a plurality of reproduction segments are continuously reproduced. The digital broadcast reproduction apparatus according to claim 1 or 2.   The digital broadcast reproduction device according to any one of claims 1 to 3, wherein the reproduction segment information extraction unit extracts information indicating whether or not the content of the reproduced segment is a CM. A personal information transmission availability storage unit that stores information indicating whether or not transmission of personal information as the viewing history to the viewing history collection center is permitted;
The viewing history transmission unit determines whether transmission of personal information to the viewing history collection center is permitted based on information stored in the personal information transmission availability storage unit, and permits transmission of personal information 5. The digital broadcast reproducing apparatus according to claim 1, wherein, when the information is recorded, personal information is added to the viewing history and transmitted to the viewing history collection center.   6. The digital broadcast reproducing apparatus according to claim 5, wherein the personal information is a CAS-ID (Conditional Access System ID). A digital broadcast reproduction device according to any one of claims 1 to 6;
A viewing history collection center that receives a viewing history transmitted from the digital broadcast reproduction device and calculates a segment audience rating in the content based on the received viewing history;
A viewing history collection system characterized by comprising: A digital broadcast reproduction device according to claim 5 or 6,
A viewing history collection center that receives the viewing history transmitted from the digital broadcast playback device and calculates a segment viewing rate based on the received viewing history or in the content;
With
The viewing history collection center excludes the second and subsequent viewing histories from the calculation of the segment audience rating when the same viewer views the same content multiple times based on personal information added to the viewing history. A viewing history collection system. A content receiving step for receiving digital broadcast content to which content identification information for identifying content is added;
A content storage step of storing the content received in the content reception step in a content storage unit;
A content playback step of playing back the content stored in the content storage unit using segment metadata;
A reproduction segment information extraction step for extracting reproduction segment information indicating a reproduced segment when the content is reproduced in the content reproduction step;
A viewing history storage step of associating the playback segment information extracted in the playback segment information extraction step with the content identification information of the reproduced content and storing it in the viewing history storage unit as a viewing history;
A viewing history transmission step of transmitting the viewing history to a viewing history collection center;
A viewing history collecting method characterized by comprising:   10. The viewing history collection according to claim 9, wherein the playback segment information extracting step extracts information indicating start time and end time of the playback segment or identification information for specifying the playback segment as playback segment information. Method.   The reproduction segment information extracting step extracts information for identifying a group of a plurality of reproduction segments or information indicating a reproduction order of reproduction segments when a plurality of reproduction segments are continuously reproduced. The viewing history collecting method according to claim 9 or 10.   12. The viewing history collection method according to claim 9, wherein the reproduction segment information extraction step extracts information indicating whether or not the content of the reproduced segment is CM. A personal information transmission availability storage step for storing in the personal information transmission availability storage unit information indicating whether or not transmission of personal information to the viewing history collection center is permitted as the viewing history information;
The viewing history transmission step determines whether or not transmission of personal information to the viewing history collection center is permitted based on information stored in the personal information transmission availability storage unit, and permits transmission of personal information. 13. The viewing history collection method according to claim 9, further comprising: adding personal information to the viewing history and transmitting the viewing history to the viewing history collection center.   14. The viewing history collection method according to claim 13, wherein the personal information is a CAS-ID (Conditional Access System ID).

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