JP2011211586A - Video receiving apparatus and method of extracting preference information in video receiving apparatus - Google Patents

Abstract

Even when the same device is used by a plurality of viewers, preference information of each viewer is not mixed, and it is not necessary to acquire statistical preference information for a long period of time, and the viewer sometimes needs to Provided is a video receiver capable of searching for a recommended program based on preference information reflecting a preference that changes in response.
A video receiving apparatus is an apparatus for receiving a broadcast wave and displaying a program of a plurality of channels included in the broadcast wave, and acquiring selection information of a plurality of channels based on a selection operation of a viewer. A selection information acquisition means for detecting, a detection means for detecting a zapping operation in which a viewer switches a channel to be viewed at intervals within a predetermined period based on the selection information, and a search from meta information of a program of the channel selected during the zapping operation Search information acquisition means for acquiring information and content information acquisition means for acquiring content information related to the search information.
[Selection] Figure 2

Description

  The present invention relates to a technique for extracting viewer preference information from information relating to operations such as zapping on a viewer's video receiver.

  In recent years, video receiving terminals that support digitization of broadcasting using radio waves and video receiving terminals that enable viewing of programs via networks such as the Internet have appeared, and programs have become multi-channel.

  In such a situation, a technique for recommending a program that matches the viewer's preference information from a number of channels has appeared. For example, in Patent Document 1, a viewing history of a viewer is observed, a program that the viewer has watched over a predetermined time is determined to be “interesting”, and a program that has been determined to be “interesting” A method is disclosed in which program information is stored as preference information of a program that the viewer likes, and is used as a keyword when searching for a recommended program.

JP 2002-152618 A

  However, in the conventional method disclosed in Patent Document 1, for example, in an operation of searching for a program by an erasing method called zapping, the viewing time of each program is short, and it is impossible to extract highly accurate preference information. There was a problem. In addition, in order to utilize such a conventional method, it is important to acquire statistical information for a long time in order to improve accuracy, but in a device that is shared and used by many people like a television The preference information extracted based on the past viewing history becomes preference information in which information related to the preferences of a plurality of people who share and use the device is mixed, so even if information is acquired statistically over a long period of time It has a problem that it is difficult not only to reflect bad taste information but also to reflect the taste of the viewer that changes depending on the time.

  The present invention has been made in view of such a problem. Focusing on preference information called zapping operation as a point to solve the problem, even when the same device is used by a plurality of viewers, preference information of each viewer is provided. In addition to the fact that it is not mixed, it is not necessary to acquire statistical preference information for a long period of time, and it is possible to search for recommended programs based on preference information that reflects the viewer's preference that changes from time to time It is an object of the present invention to provide a possible video receiving apparatus and a preference information extracting method in the video receiving apparatus.

  In order to achieve the above object, a video receiving apparatus according to a first invention of the present application is a video receiving apparatus that receives a broadcast wave and displays contents of a plurality of channels included in the broadcast wave. Selection information acquisition means for acquiring selection information of the plurality of channels based on a selection operation of the viewer of the video reception device, and switching of the channels that the viewer views at intervals within a predetermined period based on the selection information Detection means for detecting a zapping operation, search information acquisition means for acquiring search information from meta information of content of the channel selected during the zapping operation, and content information acquisition for acquiring content information related to the search information Means.

  The video receiving apparatus according to the second invention of the present application is the video receiving apparatus according to the first invention of the present application, wherein when the detecting means detects that the zapping operation is completed, the search information acquiring means The search information acquired during the zapping operation is discarded.

  The video reception device according to a third aspect of the present invention is the video reception device according to the first aspect of the present invention, wherein the search information acquisition means is responsive to a display time of the content of the channel displayed during the zapping operation. The search information to be acquired is changed.

  The video reception device according to a fourth aspect of the present invention is the video reception device according to the first aspect of the present invention, wherein the search information acquisition means is responsive to the duplication degree of the content of the channel displayed during the zapping operation. The search information to be acquired is changed.

  The video receiver of the fifth invention of the present application is the video receiver of the first invention of the present application, in the case where the display time of the content of the channel selected during the zapping operation is a predetermined time or less, The content information acquisition unit acquires the content information not related to the meta information.

  In the video receiving device of the sixth invention of the present application, in the video receiving device of the first invention of the present application, when the display time of the content of the channel selected during the zapping operation exceeds a predetermined time, The content information acquisition means acquires content information related to the meta information.

  In addition, the preference information extracting method in the video receiving apparatus of the seventh invention of the present application is a preference information extracting method in the video receiving apparatus that receives a broadcast wave and displays contents of a plurality of channels included in the broadcast wave. Then, a selection information acquisition step of acquiring selection information of the plurality of channels based on a selection operation of the viewer of the video receiving device, and the viewer views at an interval within a predetermined period based on the selection information. A detection step for detecting a zapping operation for switching the channel, a search information acquisition step for acquiring search information from the meta information of the content of the channel selected during the zapping operation, and acquiring content information related to the search information And a content information acquisition step.

  Further, the preference information extracting method in the video receiving apparatus of the eighth invention of the present application is the preference information extracting method of the video receiving apparatus of the seventh invention of the present application, in which the zapping operation is detected to have ended in the detecting step. In this case, in the search information acquisition step, the search information acquired during the zapping operation is discarded.

  The preference information extracting method in the video receiving apparatus of the ninth invention of the present application is the preference information extracting method of the video receiving apparatus of the seventh invention of the present application, wherein the display time of the content of the channel displayed during the zapping operation Accordingly, the search information acquired in the search information acquisition step is changed.

  Further, the preference information extracting method in the video receiving apparatus according to the tenth aspect of the present invention is the preference information extracting method in the video receiving apparatus according to the seventh aspect of the present invention, wherein the content overlap of the channel displayed during the zapping operation is performed. Accordingly, the search information acquired in the search information acquisition step is changed.

  Further, the preference information extracting method in the video receiving device of the eleventh invention of the present application is selected during the zapping operation in the search information acquiring step in the preference information extracting method of the video receiving device of the seventh invention of the present application. When the display time of the content of the channel is equal to or shorter than a predetermined time, the content information not related to the meta information is acquired in the content information acquisition step.

  Further, the preference information extracting method in the video receiving device of the twelfth invention of the present application is selected during the zapping operation in the search information acquiring step in the preference information extracting method of the video receiving device of the seventh invention of the present application. When the display time of the content of the channel exceeds a predetermined time, the content information related to the meta information is acquired in the content information acquisition step.

  According to the present invention, by narrowing down the recommended programs using the preference information that the viewer is not interested in zapping, the preference information of each viewer is obtained even when the same device is used by a plurality of viewers. Search for recommended programs for viewers based on preference information that reflects the preference of viewers that change from time to time and that does not require long-term statistical preference information acquisition. It is possible to provide a video receiving apparatus capable of performing the same and a preference information extracting method in the video receiving apparatus.

1 is a block diagram showing an example of a network configuration using a video reception device according to Embodiment 1 of the present invention. The block diagram which shows the structure of the video receiver which concerns on Embodiment 1 of this invention. The flowchart which shows the flow of the process regarding the extraction of preference information in the video receiver which concerns on Embodiment 1 of this invention, and the display of a recommendation program. The figure which shows an example of a program transition when the viewer who desires viewing of a quiz program performs zapping operation in the video receiver which concerns on Embodiment 1 of this invention

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated, referring drawings.

(Embodiment 1)
FIG. 1 is a block diagram showing an example of a network configuration using a video reception apparatus according to Embodiment 1 of the present invention.

  In FIG. 1, the network includes a video receiver 101, a remote controller 102, a radio broadcast station 103, and a video distribution server 104.

  The video receiving apparatus 101 has a function for extracting preference information, and includes an infrared communication interface (I / F), a radio wave reception I / F, and a packet communication I / F.

  The infrared communication I / F receives the channel selection operation information selected by the viewer from the remote controller 102, and the radio broadcast reception I / F receives the radio broadcast transmitted from the radio broadcast station 103, and the packet communication I / F. / F is connected to the video distribution server 104 via the Internet, transmits viewer preference information to the video distribution server 104, and receives recommended programs related to the viewer preference information from the video distribution server 104. To do.

  The video receiving apparatus 101 displays a radio broadcast program, monitors a viewer's zapping operation for the radio broadcast program, and switches to display a recommended program received from the video distribution server 104 via the Internet at a predetermined timing. .

  Next, the configuration of video reception apparatus 101 according to Embodiment 1 of the present invention will be described using FIG. FIG. 2 is a block diagram showing the configuration of the video reception apparatus according to Embodiment 1 of the present invention.

  In FIG. 2, the video reception device 101 includes an operation information acquisition unit 201, a zapping detection unit 202, a radio broadcast reception unit 203, a video extraction unit 204, a keyword extraction unit 205, a keyword storage unit 206, a packet communication unit 207, and a display unit 208. Consists of.

  The relationship between each unit described in the claims and each unit shown in FIG. 2 will be described. The selection information acquisition unit corresponds to the operation information acquisition unit 201, the detection unit corresponds to the zapping detection unit 202, The search information acquisition unit includes a keyword extraction unit 205 and a keyword storage unit 206, and the content information acquisition unit includes a keyword storage unit 206 and a packet communication unit 207.

  The operation information acquisition unit 201 includes an infrared communication I / F, acquires the operation information of the viewer received from the remote controller 102, and uses the acquired viewer operation information as the zapping detection unit 202, the video extraction unit 204, and the keyword. The data is output to the extraction unit 205. In the first embodiment of the present invention, the information included in the operation information of the viewer is information on the channel selection operation of the program (channel selection operation information).

  The zapping detection unit 202 observes the input frequency of the channel selection operation information input from the operation information acquisition unit 201, and the number of channel selection operations input per predetermined time T1 to the keyword storage unit 206 is a threshold value X. Exceeds the predetermined time T3, a zapping detection notification is output, a program transition notification is output when a program for all channels is selected around the predetermined time T2, and a time during which channel selection operation information is not input exceeds the predetermined time T3 And zapping end notification. In the first embodiment of the present invention, as an example, the predetermined time T1 is set to 10 seconds, the threshold value X is set twice, the predetermined time T2 is set to 30 seconds, and the predetermined time T3 is set to 10 minutes. It is not limited.

  The radio broadcast receiving unit 203 includes a radio broadcast reception I / F, receives and demodulates the broadcast radio wave transmitted from the radio broadcast station 103, and outputs the demodulated demodulated data to the video extraction unit 204 and the keyword extraction unit 205. .

  The video extraction unit 204 extracts video data based on the channel selection operation information input from the operation information acquisition unit 201 from the demodulated data input from the radio broadcast reception unit 203 and outputs the video data to the display unit 208.

  The keyword extraction unit 205 selects a program (hereinafter referred to as a channel program) selected by the viewer based on the channel selection operation information input from the operation information acquisition unit 201 from the demodulated data input from the radio broadcast reception unit 203. The program information (metadata) of “program” is extracted, and if the time until new channel selection operation information is input from the operation information acquisition unit 201 is equal to or shorter than the predetermined time T4, the extracted program information ( (Metadata) is output to the keyword storage unit 206 as an uninteresting keyword.

  Similarly, when a recommended program (recommended content) via the network is input from the packet communication unit 207, the keyword extraction unit 205 is a time until new channel selection operation information is input from the operation information acquisition unit 201. Is equal to or less than the predetermined time T4, the program information (metadata) of the recommended program input from the packet communication unit 207 is output to the keyword storage unit 206 as an uninteresting keyword. In the first embodiment of the present invention, as an example, the predetermined time T4 is set to 5 seconds, but the present invention is not limited to this.

  When the zapping detection notification is input from the zapping detection unit 202, the keyword accumulation unit 206 accumulates the uninteresting keyword input from the keyword extraction unit 205, and when the all program transition notification is input from the zapping detection unit 202. Then, it communicates with the video distribution server 104 via the packet communication unit 207 to search for content information (recommended program) that is not related to the accumulated keyword of no interest.

  The keyword accumulation unit 206 receives an uninteresting keyword from the keyword extraction unit 205 after the notification of all program transitions is input from the zapping detection unit 202 and until the zapping end notification is input from the zapping detection unit 202. Each time, the input keyword without interest is stored, and communication with the video distribution server 104 is performed via the packet communication unit 207, the recommended program is searched using the stored keyword without interest, and the zapping detection unit 202 When the zapping end notification is input, the accumulated keyword of no interest is deleted (discarded).

  The packet communication unit 207 has a packet communication I / F and is connected to the video distribution server 104 via the Internet. The packet communication unit 207 transmits an uninteresting keyword input from the keyword storage unit 206 to the video distribution server 104 and transmits it. The recommended program transmitted from the video distribution server 104 corresponding to the keyword without interest is received, and the received recommended program is output to the display unit 208 and the keyword extraction unit 205.

  The display unit 208 performs decoding processing and display of the video data input from the video extraction unit 204 and the packet communication unit 207. The display unit 208 displays the video data input from the video extraction unit 204 when the video data is not input from the packet communication unit 207, but the video data is input from the packet communication unit 207. If it is, the video data input from the video communication unit 207 is displayed without displaying the video data input from the video extraction unit 204.

  Next, the flow of processing up to displaying a recommended program in the video reception device 101 when the viewer performs a channel selection operation by zapping will be described.

  When the viewer performs a channel selection operation by zapping using the remote controller 102, channel selection operation information accompanying the channel selection operation is transmitted from the remote controller 102 to the operation information acquisition unit 201.

  The operation information acquisition unit 201 receives and acquires the channel selection operation information transmitted from the remote controller 102 and outputs the acquired channel selection operation information to the zapping detection unit 202, the video extraction unit 204, and the keyword extraction unit 205.

  The video extraction unit 204 extracts and displays the corresponding video data from the demodulated data input from the radio broadcast receiving unit 203 based on the channel selection operation information included in the operation information input from the operation information acquisition unit 201. The display unit 208 decodes and displays the video data input from the video extraction unit 204.

  The keyword extraction unit 205 also selects program information data of a corresponding program from among demodulated data input from the radio broadcast receiving unit 203 based on channel selection operation information included in the operation information input from the operation information acquisition unit 201. If (metadata) is extracted and the time until the next channel selection operation information is input is within 5 seconds (predetermined time T4), the extracted program information data is output to the keyword storage unit 206 as an uninteresting keyword. To do.

  The zapping detection unit 202 measures the input frequency of the channel selection operation information input from the operation information acquisition unit 201, and the channel selection operation information is twice (threshold X) within 10 seconds (predetermined time T1) by the zapping operation. Is detected, a zapping detection notification is output to the keyword storage unit 206.

  When the zapping detection notification is input from the zapping detection unit 202, the keyword storage unit 206 stores and stores the uninteresting keyword input from the keyword extraction unit 205 every time the viewer performs a channel selection operation.

  When the zapping detection unit 202 detects that the viewer has completed the channel selection operation within 30 seconds (predetermined time T2) by the zapping operation while the processing as described above is being performed, the keyword accumulation is performed. All program transition notifications are output to the unit 206.

  Upon receiving all program transition notifications from the zapping detection unit 202, the keyword storage unit 206 communicates with the video distribution server 104 via the packet communication unit 207, and searches for recommended programs not related to the stored uninteresting keywords. .

  The keyword accumulation unit 206 receives an uninteresting keyword from the keyword extraction unit 205 after the notification of all program transitions is input from the zapping detection unit 202 and until the zapping end notification is input from the zapping detection unit 202. Every time, the keyword without interest is stored, and communication with the video distribution server 104 is performed via the packet communication unit 207, and a program not related to the stored keyword without interest is searched as a recommended program.

  The packet communication unit 207 outputs the recommended program data acquired from the video distribution server 104 via the network to the display unit 208 and the keyword extraction unit 205.

  When the recommended program data is input from the packet communication unit 207, the display unit 208 decodes and displays the recommended program data even when the video data of the radio broadcast program selected by the viewer is displayed. Switch the screen to do.

  Next, a flow of processing corresponding to the viewer's zapping operation in the video receiving apparatus 101 after displaying the recommended program acquired from the video distribution server 104 via the Internet will be described.

  When the viewer determines that he / she is not interested in the recommended program displayed on the display unit 208 and performs the zapping operation within 5 seconds (predetermined time T4) using the remote controller 102, the remote controller 102 The transmitted channel selection operation information is sent to the keyword extraction unit 205 via the operation information acquisition unit 201.

  Since the time until new channel selection operation information is input is within 5 seconds (predetermined time T4), the keyword extraction unit 205 stores the program information data (metadata) of the recommended program displayed on the display unit 208. The keyword is output to the keyword storage unit 206 as an uninteresting keyword.

  The keyword accumulating unit 206 additionally accumulates uninteresting keywords newly input from the keyword extracting unit 205, and connects to the video distribution server 104 via the packet communication unit 207, and is not related to the accumulated uninteresting keywords. The program is searched as a recommended program, and the acquired recommended program is output to the display unit 208 and displayed.

  By processing as described above, when there is no interest in the recommended program acquired via the Internet, the recommended program is selected based on information further added to the viewer's preference information that the user is not interested. Since it can be provided, it can be made closer to the viewer's preference with the viewer's zapping operation.

  Next, the flow of processing in the video receiving apparatus 101 when the viewer finds a program of interest while providing the viewer with a recommended program acquired from the video distribution server 104 via the Internet will be described. .

  When the viewer determines that he / she is interested in the recommended program displayed on the display unit 208 and stops the zapping operation, the channel selection operation information is not input from the operation information acquisition unit 201 to the zapping detection unit 202. If the zapping detection unit 202 determines that the time during which the channel selection operation information is not input has exceeded 10 minutes, which is the predetermined time T3, it outputs a zapping end notification to the keyword storage unit 206.

  When the zapping end notification is input from the zapping detection unit 202, the keyword accumulation unit 206 deletes the accumulated uninteresting keyword, that is, preference information of the viewer who has performed the zapping operation so far.

  Here, the reason for deleting the viewer's preference information is that it is possible to provide a program of interest to the viewer, so that the necessity of holding the viewer's preference information has been reduced. When the viewer takes over the remote controller 102 and starts zapping to search for another program, the provision of an erroneous recommended program by using the preference information of the previous viewer is avoided.

  Next, the flow of processing related to extraction of preference information and display of recommended programs in the video reception apparatus 101 will be described with reference to FIG. FIG. 3 is a flowchart showing a flow of processing relating to extraction of preference information and display of a recommended program in the video reception apparatus according to Embodiment 1 of the present invention.

  In FIG. 3, when the zapping detection unit 202 acquires operation information from the viewer via the operation information acquisition unit 201 (S301), the zapping detection unit 202 determines whether the viewer's channel selection operation is a zapping operation (S302). ). For example, it is determined whether or not the number of channel selection operations input per predetermined time T1 (10 seconds) exceeds a threshold value X (twice).

  If it is determined in step S302 that the viewer's channel selection operation is not a zapping operation (NO in step S302), the display unit 208 uses the video extraction unit 204 selected based on the channel selection operation information. The input radio broadcast program is displayed (S311), and the process is terminated (S308).

  On the other hand, if it is determined in step S302 that the viewer's channel selection operation is a zapping operation (YES in step S302), the zapping detector 202 further determines the viewing time of the selected program. It is determined whether or not the time is less than T4 (5 seconds) (S303).

  In step S303, if it is determined that the viewing time of the selected program is 5 seconds or less (YES in step S303), the program information of the selected program is used as a keyword with no interest as a keyword. The program is stored in the storage unit 206 (S304), and it is further determined whether or not the channel selection operation for all programs has been performed within a predetermined time T2 (30 seconds) (S305).

  In step S305, when it is determined that the channel selection operation for all programs has been performed within 30 seconds (YES in step S305), the keyword storage unit 206 passes the packet communication unit 207 through the video distribution server 104. On the other hand, the recommended program is searched using the accumulated keyword of no interest (S306), the acquired recommended program is displayed on the screen of the display unit 208 (S307), and the process is terminated (S308).

  Subsequently, in step S303, when it is determined that the viewing time of the selected program is not 5 seconds or less (NO in step S303), the viewing time of the selected program is a predetermined time T3 (10 minutes). It is determined whether or not the following is true (S309).

  If it is determined in step S309 that the viewing time of the selected program is 10 minutes or less (YES in step S309), the radio broadcast program selected by the viewer based on the channel selection operation information Is displayed on the display unit 208 (S311), and the process is terminated (S308).

  On the other hand, if it is determined in step S309 that the viewing time of the selected program is not less than 10 minutes (NO in step S309), it is determined that the viewer has reached the program that the viewer wants to view, and keyword storage is performed. The uninteresting keyword stored in the unit 206 is reset (discarded) (S310), the program selected by the viewer is displayed on the display unit 208 based on the operation information (S311), and the process is terminated (S308). ).

  Subsequently, in step S305, if it is determined that the channel selection operation for all programs has not been performed (NO in step S305), the program selected by the viewer based on the channel selection operation information is selected. The information is displayed on the display unit 208 (S311), and the process is terminated (S308).

  Next, program transition of the video receiving apparatus 101 that performs the above processing operation will be described with reference to FIG. FIG. 4 is a diagram showing an example of program transition when a viewer who desires to watch a quiz program performs a zapping operation in the video receiving apparatus according to Embodiment 1 of the present invention.

  In FIG. 4, information operated by the viewer using the remote controller 102 is described in the operation information column. For example, 1 described in the operation information column means the channel selection button 1 of the remote controller 102.

  The tuning information is described in the tuning information column. For example, the radio wave 1 described in the channel selection information column indicates a radio broadcast channel 1, and NW1 indicates the first recommended program searched and acquired via the Internet. In the first embodiment of the present invention, it is assumed that there are six channel programs from radio wave 1 to radio wave 6 in radio broadcast.

  A program name is described in the program name column, and metadata extracted from program information of the corresponding program is described in parentheses. In the viewing time column, the viewing time when the viewer views each program is described.

  In the non-interesting keyword column registered in the keyword storage unit 206, the accumulation transition of the non-interesting keyword accumulated along with the zapping operation is described.

  Next, while the viewer starts the channel selection operation from the radio wave 1 and performs the zapping operation with the radio wave 2, the radio wave 3 and the radio wave 4, how to extract the viewer's preference information and provide a recommended program Explain what to do.

  First, when the viewer selects the channel selection button 1 of the remote controller 102, a radio broadcast program whose channel selection information is radio wave 1 and whose program name is English conversation is displayed on the display unit 208.

  However, if the viewer determines that he / she is not interested in the English conversation program and selects the channel selection button 2 of the remote controller 102 with a viewing time of 3 seconds, the channel selection information is the radio wave 2 and the program name is morning. Wide-area radio broadcast programs are displayed.

  When the viewer determines that he / she is not interested in the morning wide show program and selects the channel selection button 3 of the remote controller 102 with a viewing time of 3 seconds, the channel selection information is displayed on the display unit 208 as the radio wave 3. The radio broadcast program whose program name is Anime will be displayed.

  At this time, since the channel selection operation that is the threshold value is executed twice within 10 seconds (predetermined time T1), the video receiving apparatus 101 detects zapping and starts extracting preference information.

  When the viewer determines that he / she is not interested in the broadcast program of the radio wave 3 and selects the channel selection button 4 of the remote controller 102 with a viewing time of 4 seconds, the channel selection information is displayed on the display unit 208. A radio broadcast program whose program name is documentary with radio wave 4 is displayed. At this time, since the viewing time of the broadcast program with the program name is 5 seconds (predetermined time T4) or less, the video receiving apparatus 101 is interested in the animation whose program name is the program information (metadata) of the animation. It is registered in the keyword storage unit 206 as a none keyword.

  Subsequently, the viewer views the radio broadcast program whose program name is documentary for 10 seconds, and then selects the channel selection button 5 of the remote controller 102, and selects the radio broadcast program whose channel selection information is radio wave 5 and program name is baseball. select. In this case, since the viewing time of the radio broadcast program whose program name is the documentary is longer than 5 seconds (predetermined time T4), the documentary whose program name is the document information of the documentary (metadata) is stored as a keyword without interest. It is not registered in the part 206.

  Subsequently, the viewer determines that the channel selection information is the radio wave 5 and the program name is not interested in the radio baseball broadcast program, and after watching the radio baseball radio broadcast program for 3 seconds, the remote controller 102 When the music selection button 6 is selected, the display unit 208 displays a radio broadcast program whose channel selection information is radio wave 6 and whose program name is rakugo. At this time, since the viewing time of the baseball radio broadcast program is 5 seconds (predetermined time T4), baseball, giants, and Hanshin whose program name is baseball program information (metadata) are the keyword storage unit 206. It is additionally registered in.

  Subsequently, when the viewer views a radio broadcast program whose channel selection information is radio wave 6 and whose program name is rakugo for 4 seconds and then selects the channel selection button 1 of the remote controller 102 again, the program name of the rakugo broadcast program is selected. Since the viewing time is 5 seconds (predetermined time T4) or less, rakugo whose program name is rakugo program information (metadata) is additionally registered in the keyword storage unit 206.

  At this point, since all the programs have been selected within 30 seconds (predetermined time T2), the video receiving apparatus 101 is interested in the video distribution server 104 registered in the keyword storage unit 206. Search for recommended programs using none keywords. At this time, the video receiving apparatus 101 searches the video distribution server 104 for a program that is not related to the keyword of no interest registered in the keyword storage unit 206 as a recommended program.

  As a result of searching the video distribution server 104, the video receiving apparatus 101 obtains a recommended program with a channel selection information of NW1 and a program name of a drama, and the channel selection button 1 of the remote controller 102 is displayed on the display unit 208. The channel selection information assigned to is replaced with the radio broadcast program of radio wave 1 and the program from the video distribution server 104 whose channel selection information is NW1 and whose program name is drama is displayed.

  Subsequently, the viewer determines that he / she is not interested in the program from the video distribution server 104 whose channel selection information is NW1 and whose program name is drama, and the channel selection button 2 of the remote controller 102 has a viewing time of 3 seconds. Since the viewing time of the program from the video distribution server 104 whose drama name is the drama is 5 seconds (predetermined time T4) or less, the video receiving apparatus 101 has the program name as drama program information (metadata). A certain drama, Takuya Kimura, is additionally registered in the keyword storage unit 206, and a second recommended program not related to the non-interesting keyword registered in the keyword storage unit 206 is searched.

  As a result of searching the video distribution server 104 for the second time, when the channel selection information is NW2 and the program with the program name quiz is selected as the recommended program, the video receiving apparatus 101 selects the recommended program on the display unit 208. Instead of the morning wide show in which the channel selection information assigned to the channel selection button 2 is the broadcast program of the radio wave 2, the program from the video distribution server 104 with the channel selection information NW2 and the program name quiz is displayed.

  Here, the viewer views the program from the video distribution server 104 whose channel selection information displayed on the display unit 208 as the recommended program is NW2 and whose program name is a quiz for 30 minutes. Since the time is longer than 10 minutes (predetermined time T3), it is determined that the viewer has reached the program that the viewer wants to view, and the keyword of no interest registered in the keyword storage unit 206 is reset (discarded) and the process is terminated. .

  In this way, the video receiving apparatus 101 monitors the channel selection operation for the viewer to search for a radio broadcast program called zapping, and confirms that all programs have been selected within a predetermined time T2 (30 seconds). Upon confirmation, it is determined that the program that the viewer wants to view does not exist in the radio broadcast program, and the program is switched to the recommended program acquired from the video distribution server 104 via the Internet.

  In that case, the video receiving apparatus 101 monitors channel selection information and viewing time when searching for a radio broadcast program, extracts and registers an uninteresting keyword, and uses the registered uninteresting keyword for video. The distribution server 104 is searched and the recommended program desired by the viewer is selected. Thus, by searching for the recommended program utilizing the preference information “not interested” such as zapping, the viewer's preference is selected. It is possible to provide recommended programs close to.

  As described above, even when the same apparatus is used by a plurality of viewers, not only preference information of each viewer is not mixed, but also it is not necessary to acquire statistical preference information for a long period of time and Video receiving apparatus and preference information extracting method in video receiving apparatus capable of searching for a recommended program that a viewer may desire based on preference information reflecting a preference that changes depending on the time Can be provided.

  In the first embodiment of the present invention, as a method of extracting preference information that the viewer is not interested in the program, it is determined whether or not the viewer's viewing time for each program is equal to or less than a predetermined time T4. However, the present invention is not limited to this. For example, assuming that a program that the viewer is interested in is selected and viewed multiple times, the number of times that each program is selected per predetermined time is the predetermined number of times. Whether it is the following or not may be used as a keyword registration condition, or the viewing time of each selected / viewed program is measured, and the average of the measured viewing time (average viewing time) of each program is a predetermined time. Whether it is T4 or less may be used as a keyword registration condition without interest.

  In Embodiment 1 of the present invention, the recommended program is acquired from the video distribution server 104 via the network. However, the method is not limited to this. For example, the video included in the video receiving device 101 is acquired. You may acquire from the storage medium which can accumulate | store information.

  In the first embodiment of the present invention, when the display time of the program selected by the viewer's zapping operation is equal to or shorter than the predetermined time (predetermined time T4), the program information (meta information) of each selected program Is registered in the keyword storage unit 206 as an uninteresting keyword, but conversely, if the display time of the program selected by the viewer's zapping operation exceeds a predetermined time (predetermined time T4), the program of each selected program Information (meta information) may be registered in the keyword storage unit 206 as an interesting keyword. However, in this case, the recommended program related to the preference information “interested” is searched.

  Further, in the first embodiment of the present invention, when the viewer watches the selected recommended program for a predetermined time T3 or longer, the video receiving apparatus 101 determines that the program has reached the program that the viewer wants to view. Then, the keyword of no interest registered in the keyword storage unit 206 is deleted (discarded). For example, the registered keyword of no interest and the ID of the viewer are stored in association with each other, and the saved keyword of no interest is stored. May be used again by the viewer. Furthermore, in Embodiment 1 of the present invention, the concept of weighting for viewing time may be used simultaneously with other filters when selecting a recommended program. For example, if the viewing time is short using a filter related to the similarity between this filter and the broadcast program, the weight of the user's main filter is lowered (the filter related to the similarity between broadcast programs is increased) and the viewing time is long. May increase the weight of this filter (lower the filter related to the similarity of broadcast programs).

  In the first embodiment of the present invention, the operation information acquisition unit 201 receives the operation information of the viewer transmitted by infrared communication from the remote controller 102 provided outside the video reception device 101. The present invention is not limited to this, and the remote controller 102 may use communication means other than infrared communication, and the video receiving apparatus 101 main body may have a function of the remote controller 102. Absent.

  In addition, the present invention can be provided not only as the video receiving apparatus provided with the respective units in the apparatus according to the first embodiment of the present invention but also in the video receiving apparatus including the respective units included in the video receiving apparatus as steps. It is also possible to provide a preference information extraction program in a video reception apparatus that causes a computer to execute a preference information extraction method.

  According to the video receiving device and the preference information extracting method in the video receiving device according to the present invention, it is possible to extract the preference information that the viewer is not interested by the zapping operation and provide the recommended program. Not only devices, but also a device that recommends content that reflects viewers' preferences through zapping operations, such as Internet radio channel selection recommendation, and a program for extracting preference information It can be used for.

DESCRIPTION OF SYMBOLS 101 Video receiver 102 Remote controller 103 Radio broadcast station 104 Video distribution server 201 Operation information acquisition part 202 Zapping detection part 203 Radio broadcast reception part 204 Video extraction part 205 Keyword extraction part 206 Keyword storage part 207 Packet communication part 208 Display part

Claims (12)

A video receiving device that receives a broadcast wave and displays content of a plurality of channels included in the broadcast wave,
Selection information acquisition means for acquiring selection information of the plurality of channels based on a selection operation of a viewer of the video reception device;
Detecting means for detecting a zapping operation for switching the channel that the viewer views at intervals within a predetermined period based on the selection information;
Search information acquisition means for acquiring search information from the meta information of the content of the channel selected during the zapping operation;
Content information acquisition means for acquiring content information related to the search information;
A video receiving apparatus comprising: 2. The video receiving apparatus according to claim 1, wherein when the detection unit detects that the zapping operation has been completed, the search information acquisition unit discards the search information acquired during the zapping operation. . The video receiving apparatus according to claim 1, wherein the search information acquisition unit changes the search information to be acquired according to a display time of the content of the channel displayed during the zapping operation. 2. The video receiving apparatus according to claim 1, wherein the search information acquisition unit changes the search information to be acquired according to a degree of duplication of the content of the channel displayed during the zapping operation. The content information acquisition unit acquires the content information not related to the meta information when the display time of the content of the channel selected during the zapping operation is a predetermined time or less. The video receiver according to 1. The content information acquisition unit acquires content information related to the meta information when a display time of the content of the channel selected during the zapping operation exceeds a predetermined time. The video receiver described. A method for extracting preference information in a video receiving apparatus that receives a broadcast wave and displays content of a plurality of channels included in the broadcast wave,
A selection information acquisition step of acquiring selection information of the plurality of channels based on a selection operation of a viewer of the video reception device;
A detection step of detecting a zapping operation for switching the channel that the viewer views at an interval within a predetermined period based on the selection information;
A search information acquisition step of acquiring search information from meta information of the content of the channel selected during the zapping operation;
A content information acquisition step of acquiring content information related to the search information;
A method for extracting preference information in a video receiving apparatus. The video reception according to claim 7, wherein when it is detected that the zapping operation is completed in the detection step, the search information acquired during the zapping operation is discarded in the search information acquisition step. A method for extracting preference information in a device. 8. The preference information extracting method in the video receiving apparatus according to claim 7, wherein the search information acquired in the search information acquisition step is changed according to a display time of the content of the channel displayed during the zapping operation. . 8. The preference information extracting method in the video receiving apparatus according to claim 7, wherein the search information acquired in the search information acquiring step is changed according to the overlapping degree of the content of the channel displayed during the zapping operation. . When the display time of the content of the channel selected during the zapping operation in the search information acquisition step is a predetermined time or less, the content information not related to the meta information is acquired in the content information acquisition step. The preference information extracting method in the video receiver according to claim 7. When the display time of the content of the channel selected during the zapping operation in the search information acquisition step exceeds a predetermined time, the content information related to the meta information is acquired in the content information acquisition step. The method for extracting preference information in a video receiving apparatus according to claim 1.

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