JP2007274246A - Receiver and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a receiver capable of surely presenting an advertisement data which is thought to be appropriate to a user who is viewing a broadcast, even if a plurality of users who can view the broadcast are present. <P>SOLUTION: An image recognizer 111 acquires an image photographed with a camera 110, and discriminates a user contained in the photographed image. It notifies the result to a CPU106. The CPU106 reads a viewer information registered for the recognized user from a viewer information table D1. The advertisement data specified based on the viewer information are requested from a CATV station through a communication device 113. The advertisement data received from it is outputted to a video output device 103, which is displayed on an advertisement message display part 104. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a receiver capable of receiving information transmitted via broadcast and communication networks, respectively.

  In recent years, information other than broadcasting has been provided to viewers who are watching broadcasting. In a digital terrestrial broadcast compatible receiver, information related to a broadcast program can be acquired from a Web site via a communication network. As such information, it is considered to more actively present advertisement data. This is because sales of more products can be expected by increasing the opportunities for viewers to see advertisements.

The advertisement data presented to the viewer is desired to be appropriate for the viewer. Such advertisement data can be appropriately estimated to some extent from the broadcast program being watched by the viewer and its personal information (for example, hobbies and preferences). For this reason, there is a program that automatically selects and watches a broadcast program that is considered to be suitable for the viewer, as in the prior art described in Patent Document 1, for example. However, there is not always one viewer who watches a broadcast program, that is, a receiver user. In addition, a plurality of people may watch the same broadcast program together. For this reason, when presenting advertisement data for viewers, it is important to consider that multiple people can view broadcast programs in order to present advertisement data that is considered to be more appropriate. It is believed that there is.
JP 2005-236353 A JP 2002-315023 A JP 2003-296268 A JP 2005-142975 A

  An object of the present invention is to provide a receiver that can more reliably present advertisement data that is considered appropriate for a user who is watching a broadcast even when there are a plurality of users who can view the broadcast.

  The receiver according to the first aspect of the present invention is based on the premise that information transmitted via a broadcast and a communication network can be received, and the advertisement data for a user who is watching the broadcast is used as information for the information via the communication network. Data communication means that can be received by the user, user recognition means for recognizing a user who is considered to be watching the broadcast, and advertisement data selected based on the user recognized by the user recognition means is acquired and displayed by the data communication means. Advertisement display means.

  In addition to the configuration of the first aspect, the receiver of the second aspect includes history storage means for storing viewing history information indicating a user recognized by the user recognition means at the time of broadcasting the broadcast program, for each broadcast program. The advertisement display means further selects advertisement data to be acquired by the data communication means with reference to the viewing history information stored by the history storage means when there are a plurality of users recognized by the user recognition means.

  The advertisement display means refers to the viewing history information saved by the history saving means, and the user recognition means has watched the broadcast program currently being watched in the past among the users recognized by the user recognition means. It is desirable to identify a user with the highest probability and select advertisement data to be acquired by the data communication means based on the identified user.

  The program of the present invention has a function for realizing the means provided in the receiver of the first aspect.

  The present invention recognizes a user who is considered to be watching a broadcast, selects advertisement data based on the recognized user, and acquires and displays the selected advertisement data via a communication network. By performing user recognition, it is possible to more reliably select advertisement data that is considered appropriate for a user who is actually watching or who is likely to be watching. For this reason, even if there are a plurality of users who can view the broadcast, it is possible to present the advertisement data that can be expected to have a high appeal effect to the user who is viewing it.

  When viewing history information indicating the user recognized at the time of broadcasting the broadcast program is stored for each broadcast program, which broadcast program is viewed by the user at what frequency (probability) from the viewing history information. You will know if you are. Differences in the degree of likes between viewing users and the degree of concentration in viewing can be estimated more accurately. From this, when a plurality of users are recognized, a user who can be expected to have the highest appeal effect among them can be identified with higher accuracy. As a result, even when a plurality of users are viewing, advertisement data that can be expected to have a high appeal effect can be presented to the users more reliably.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings.
FIG. 1 is a configuration diagram of a receiver according to this embodiment, and FIG. 2 is a diagram illustrating a network system in which the receiver can acquire information.

  The receiver is assumed to be connected to a CATV network as shown in FIG. A plurality of broadcasting stations (CATV stations) 200 that perform broadcasting by transmitting broadcast signals are connected to the CATV network. Each CATV station 200 provides a service for transmitting the advertisement data 201 entrusted from the contracted store 210 in response to a request from the receiver side. The receiver according to the present embodiment is realized as a device for viewing a broadcast signal transmitted from the CATV station 200 and presenting advertisement data. Accordingly, it is assumed that the network system is connected to one or more CATV stations 200 in the CATV network. The broadcasting performed by the CATV station includes data broadcasting.

  The advertisement data 201 may be acquired from a Web page by transmitting information (URL or the like) for acquiring the advertisement data 201 by data broadcasting or the like. Alternatively, it may be transmitted through a dedicated channel or the like, and advertisement data to be presented on the receiver side may be selected and presented.

  As shown in FIG. 1, the receiver includes a tuner 101 for receiving a broadcast signal of a channel set from a broadcast transmitted to the CATV network, and a decoder for decoding the broadcast signal received by the tuner 101. 102, a video output device 103 for outputting video, an advertisement message display unit 104 for displaying a video signal sent from the video output device 103, a television (TV) display unit 105, and control of the entire receiver A CPU 106 that performs the program, a program ROM 107 that stores programs executed by the CPU 106 and various control data, a work RAM 108 that the CPU 106 uses for work, a memory 109 that stores various data, and a user who is watching Of the camera unit 110 and the camera unit 110 An image recognition unit 111 for recognizing a user shown in a shadow image, a switch unit 112 having various switches, and a communication device (cable modem) 113 for performing bidirectional communication via the CATV network It has a configuration with. Although not specifically shown, a receiving unit for receiving a signal transmitted from a remote control device (hereinafter abbreviated as “remote controller”), an audio output unit for outputting sound, and the like are also mounted. .

  Users who may use the receiver register their personal information (viewer information). The registered viewer information is stored in the viewer information table D 1 and stored in the memory 109. The memory 109 is a nonvolatile one such as a hard disk device.

  FIG. 3 is a diagram illustrating the configuration of the viewer information stored in the viewer information table. As shown in FIG. 3, the viewer information is composed of a plurality of data indicating sex, age, and hobbies. “Father”, “mother”, “son”, and “daughter” shown in the figure are identification information that uniquely constitutes the viewer information and that uniquely indicates the user represented by the viewer information. The viewer information is input and registered by operating the switch unit 112 or operating the remote controller. Note that the type and number of data items requested to be input as viewer information are not particularly limited.

  The recognition of the user by the image recognizing unit 111 uses a known technique, for example, a face recognition technique to confirm which of the users registered in the viewer information is the person shown in the photographed image. Done in As a result, when only a person who has not registered viewer information is recognized as being captured in the captured image, no one is viewing the broadcast.

  A user whose viewer information is registered cannot always be accurately recognized from the viewer information. There are individual differences in appearance, body size, and facial features. The combination of users who registered the viewer information is not necessarily a combination of users who can be said to have a visually distinct difference from the viewer information. For this reason, in this embodiment, learning is performed for each user who has registered the viewer information so that each user can be accurately recognized. Note that user recognition may be performed using another technique instead of using an image recognition technique. For example, the user may be recognized by using an IC tag built into an object that is always carried by the user.

  By causing the image recognition unit 111 to perform user recognition as described above as needed, it is possible to identify a user who is watching or can view a broadcast program. Therefore, the CPU 106 regards such a user as a viewer, and requests and acquires the advertisement data 201 that is considered appropriate for the user from the CATV station 200 via the communication device 113. The acquired advertisement data 201 is stored in the memory 109, sent to the performance output device 103, and displayed on the advertisement message display unit 104. In this way, since the advertisement data 201 that is considered appropriate for the recognized user is presented, a higher appeal effect can be realized more reliably.

  The number of users recognized by the image recognition unit 111 is not necessarily one. It is possible to recognize multiple users. Therefore, in the present embodiment, for each broadcast program that has been viewed, viewing history information (hereinafter referred to as the number of times the broadcast program is viewed) indicating the number of times that the user (viewer) is recognized when the program is broadcast (viewing). (Referred to as “viewing record information”). For the storage, a viewing record information database (DB) D2 is constructed on the memory 109.

  FIG. 4 is a diagram for explaining the data structure of the viewing record information DB. As shown in FIG. 4, the viewing record information stored in the information database D2 includes the number of the channel that broadcasts the broadcast program, the day of the week that the program is broadcast, the viewing start time (broadcast start time) of the program, and the end thereof. It has a configuration including time, program name, tag data stored in metadata received at the time of broadcasting the program, and viewer statistical data. The viewer statistical data is a summary of the number of times (viewing times) recognized during broadcasting of a broadcast program targeted by the user for each user whose viewer information is registered in the viewer information table D1. By storing such viewing record information in the view record information database (hereinafter abbreviated as “information database”) D2, for each broadcast program, which user has the most viewing times, that is, the probability of viewing the broadcast program It is easy to grasp whether the price is high. It can be considered that the user who views the broadcast program has a higher consciousness to view the broadcast program. If the user has such a consciousness, the advertisement message display unit 104 (in the vicinity of the TV display unit 105). This is because it can be expected that the time for viewing FIG. 2) will be longer. In addition, the information database D2 stores the date when the recording of viewing record information is started, the number of days when the storage is performed, and the number of weeks.

  When there are a plurality of users recognized by the image recognition unit 111, the CPU 106 extracts viewing record information corresponding to the currently broadcasted broadcast program from the information database D2, and the broadcast program among the recognized users. The user who has the highest probability of viewing is identified, and the advertisement data 201 that is considered appropriate for the identified user is acquired and displayed on the advertisement message display unit 104. Thereby, the advertisement data 201 that is considered to be more effective for a user who is considered to be more conscious of viewing a broadcast program is displayed. As a result, even if a plurality of users are viewing, the advertisement data 201 that can be expected to have the highest appeal effect is presented to the user who is considered to have the highest appeal effect among them. It can be expected that this will be realized reliably. The advertisement data 201 may be displayed, for example, by dividing the screen of the TV display unit 105 and displaying both the broadcast program and the advertisement data 201 on the display unit 105.

  Hereinafter, the operation of the CPU 106 for recognizing the user who is watching the broadcast program and displaying the more appropriate advertisement data 201 as described above will be described in detail with reference to various flowcharts shown in FIGS. The operation of the CPU 106 is realized by the CPU 106 reading and executing a program stored in the program ROM 107.

  5 to 7 are flowcharts of the entire process. First, the operation of the CPU 106 will be described in detail with reference to FIGS. The overall process is an excerpt of the main processes related to the present invention that are executed after the power is turned on.

  First, in step 401, initialization is performed by turning on the power. In the next step 402, for example, the current time (power-on start time) and date are obtained from the built-in hard timer, and in the next step 403, the viewing channel number, that is, the channel number set in the tuner 101 is obtained. To do. After the acquisition, the process proceeds to step 403a.

  In step 403a, the image recognition unit 111 recognizes the user, and obtains recognition data indicating the recognition result. In the next step 404, the program name and tag data are acquired, and in the next step 405, an advertisement message data acquisition process for acquiring the advertisement data 201 from the CATV station 200 is executed. After the execution, the process proceeds to step 406.

  The program name can be acquired by referring to an EPG (electronic program guide) based on the viewing channel number and the current date and time, for example. The tag data is acquired from metadata in a form transmitted with a broadcast program. When the CPU 106 is instructed to recognize the user, the image recognition unit 111 causes the camera unit 110 to capture a captured image, and the image recognition unit 111 captures the captured image using a face recognition technique for the captured image. Recognize existing users.

  In step 406, it is determined whether channel change is instructed. When the user designates another channel by operating the switch unit 112 or the remote controller, the switch unit 112 or the receiving unit notifies that the channel change is instructed, so the determination is YES and step 407 is performed. Migrate to Otherwise, the determination is no and the process moves to step 410. Since the processing contents of steps 407 to 409 are basically the same as those of steps 403, 404, and 405, detailed description thereof is omitted. After the advertisement message data acquisition process is executed in step 409, the process proceeds to step 410.

  In step 410, it is determined whether or not the power switch is turned off. The power switch is for performing, for example, any one of a power-on state → power-off state and a power-off state → power-on state according to the state at the time of operation. Therefore, when the user operates the power switch, the determination is YES, and after acquiring the current time as the power-off end time in step 411, the process proceeds to step 412 in FIG. Otherwise, the determination is no and the process moves to step 419 in FIG.

  In step 412, the viewing record information specified by the acquired viewing channel number, day of the week, power-on start time (viewing start time), power-off end time (viewing end time), program name, and tag data is obtained from the information database D2. Perform a search to extract. In the next step 413, it is determined whether or not the viewing record information exists in the database D2. If the viewing record information exists, the determination is yes and the process proceeds to step 414. Otherwise, the determination is no and the process moves to step 417.

  The data for each item acquired in step 412 is acquired by executing steps 402, 403, 404, 407, 408, 411, or 421a. The data of each item used for the search of the database D2 is all acquired last.

  In step 414, the viewer statistical data in the viewing record information found in the database D2 is changed according to the user last recognized by the image recognition unit 111, that is, the viewing count is incremented for each recognized user, The statistical data after the change is newly stored in the database D2. After that, in step 415, the TV unit, that is, the tuner 101, the decoder 102, the video output device 103, the advertisement message display unit 104, and the TV display unit 105 are turned off, and in the next step 416, the camera unit 110 is turned off. Terminate the process.

  On the other hand, in step 417, an empty area is secured in the information database D2, that is, a record is added. In the subsequent step 418, viewing record information having the data of each item used in the search of the database D2 in the step 412 is newly generated and stored in the database D2. Thereafter, the process proceeds to step 415. The newly generated viewer statistical data in the viewing record information is obtained by setting the number of viewing times to 1 for each user who is finally recognized by the image recognition unit 111.

  The update or generation of the viewing record information as described above is also performed according to a channel change or broadcast of a broadcast program. The viewing start time is the time when the channel of the viewed broadcast program is changed, or the time when the broadcasting of the broadcast program is started. The viewing end time is the time when the channel is changed from one channel to another, and the power is turned off. Or the time when the broadcast ended. However, the channel is often changed for the purpose of confirming a broadcast program broadcast on the channel. As a result, channel changes are often repeated in a very short time. Therefore, the update or generation of the viewing record information accompanying the channel change is performed by confirming whether or not the channel change for viewing the broadcast program desired to be viewed has been performed. For example, the channel change has not been performed for a predetermined time or longer before the broadcast of the broadcast program ends, and the channel change has been repeatedly performed for a relatively long time, but the time set during that time It is conceivable to set a condition such that there is a channel having a very high ratio compared to the other, and to determine whether there is a condition that satisfies the set condition.

  In step 419 in FIG. 7 where the determination in step 410 in FIG. 5 is NO and the process proceeds, the image recognition unit 111 is instructed to perform user recognition, and recognition data indicating the recognition result is acquired. In the following step 420, it is determined whether or not the recognized viewer has changed. If a user who has not been recognized before is recognized, or if a user who has been recognized until then is no longer recognized, the determination is yes and the process proceeds to step 421. If it is none of these, the determination is no and the process moves to step 422.

  In step 421, the currently recognized user is identified as a recognized viewer who is a viewer who is viewing the broadcast program. In the next step 421a, the program name and tag data are acquired, and in the next step 421b, advertisement message data acquisition processing is executed. After the execution, the process proceeds to step 422, and the advertisement data 201 (denoted as “advertisement message information” in the figure) 201 stored in the memory 109 is read. In the next step 423, the read advertisement data 201 is output to the video output device 103 and displayed on the advertisement message display unit 104. Step 406 in FIG. 5 then returns.

  In this way, in the present embodiment, the advertisement data 201 is acquired from the CATV station 200 as needed in accordance with changes in the broadcast program to be viewed (which occurs due to channel change or broadcast end) or changes in the recognized viewer. The advertisement data 201 is displayed on the advertisement message display unit 104. Thereby, the advertisement data 201 considered to have the highest appeal effect is presented according to the user who is viewing.

  FIG. 8 is a flowchart of the advertisement message data acquisition process. The acquisition process is a process for acquiring the necessary advertisement data 201 from the CATV station 200, which is executed in step 405, 409, or 421b. Next, the acquisition process will be described in detail with reference to FIG.

  First, in step 700, it is determined whether or not there are a plurality of users recognized last by the image recognition unit 111. If the image recognition unit 111 has recognized a plurality of users last, the determination is yes and the process proceeds to step 701, and if not, the determination is no and the process proceeds to step 704.

  In step 701, as in step 412 above, the viewing channel number, day of the week, power-on start time (viewing start time), power-off end time (viewing end time), program name, and viewing specified by the tag data A search for extracting record information from the information database D2 is performed. In the next step 702, it is determined whether or not the viewing record information exists in the database D2. If the viewing record information exists, the determination is yes and the process proceeds to step 703. If not, the determination is no and the process proceeds to step 707.

  In step 703, the viewer statistical data in the viewing record information found in the database D2 is referred to, and the user who has the highest number of viewing times is selected from the currently recognized users. In the following step 704, the viewer information of the selected user is read from the viewer information table D1 (FIG. 3), and the hobby data is extracted. In the next step 705, the CATV station 200 is requested to download the advertisement data 201 (denoted as “advertisement message data” in the figure) 201 specified from the data and the acquired tag data via the communication device 113. . After making the request, the process proceeds to step 706, waiting for the communication device 113 to receive the advertisement data 201 downloaded from the CATV station 200 by the request, and storing the received advertisement data 201 in the memory 109. Then, a series of processing is terminated.

  On the other hand, in step 707 where the determination in step 702 is NO and the process proceeds to step 707, the CATV station 200 is requested to download the advertisement data 201 specified by the tag data. Thereafter, the process proceeds to step 706.

  The download of the advertisement data 201 is requested to the CATV station 200 that is currently transmitting the broadcast program being viewed. The advertisement data 201 requesting download is specified with reference to a table indicating a storage location (for example, URL) of the advertisement data 201 considered appropriate for each broadcast program (tag data) and each hobby, for example. Such a table may be distributed from the CATV station 200 to each receiver, but the advertisement data 201 to be targeted is transmitted from the receiver side to the CATV station 200 side, and the advertisement data 201 is transmitted. You may make it select. In step 707, a rule for determining the priority among a plurality of recognized users is prepared, and the hobby of the user with the highest priority is reflected in the download of the advertisement data 201 according to the rule. May be. If the determination in step 700 is NO and the process proceeds to step 704, the recognized user is treated as the user selected in step 703.

  FIG. 9 is a flowchart of the advertisement schedule display process. This display process is a process for automatically presenting the advertisement data 201 to a user in the vicinity of the receiver, which is executed, for example, at regular time intervals while the power is off. Next, the display process will be described in detail with reference to FIG.

  First, in step 801, the image recognition unit 111 is instructed to perform user recognition, and recognition data indicating the recognition result is acquired. In the subsequent step 802, it is determined whether or not a recognized viewer (user) exists. If there is no such viewer, the determination is no, and the series of processing ends here. Otherwise, the determination is yes and the process moves to step 803.

  In step 803, it is determined whether or not the advertisement data 201 to be displayed exists in the memory 201. If such advertisement data 201 does not exist, the determination is no and the process moves to step 806. If not, the determination is YES, and the advertisement data 201 is read from the memory 109 in step 804, and the advertisement data 201 is output to the video display device 103 in the next step 805, so that the advertisement message display unit 104 receives the advertisement data 201. After the display, the series of processing ends.

  The advertisement data 201 is displayed for a time determined by the advertisement data 201 or for a predetermined time. When any one of them elapses, the CPU 106 turns off the TV unit and ends the display of the advertisement data 201.

  In step 806, the current time is acquired. In the next step 807, the information database D2 is searched using the acquired current time, and the current time is the viewing record information whose viewing time is the time zone between the viewing start time and the viewing end time. Perform extraction. At the next step 808, if the extracted viewing record information exists, the user who has watched the broadcast program at the present time in the past from the viewer statistical data in the viewing record information. In the meantime, the prediction order according to the viewing probability (viewing frequency) is determined. After the determination, the process proceeds to step 809. If the viewing record information cannot be extracted in step 807, a series of processing is terminated here, although not particularly shown.

  In step 809, it is determined whether or not there is a matching user by collating the recognized users with the higher-ranked users in the predicted ranking. If there is one of the recognized users to which the prediction order is assigned, that is, if there is a matching user, the determination is YES and the process proceeds to step 810. Otherwise, the determination is no and the series of processing ends here.

  The collation is terminated when it is confirmed that there is a user who has been assigned a prediction rank among the recognized users. This is because among the recognized users, the user who has the highest probability of watching a broadcast program at the current time in the past is considered to have the highest appeal effect.

  In step 810, the viewer information of the matched user is read from the viewer information table D1, and data indicating the hobby is acquired. In subsequent step 811, the CATV station 200 is requested to download the advertisement data 201 specified by the acquired hobby data via the communication device 113. Thereafter, the process proceeds to step 812, and the advertisement data 201 received by the communication device 113 is stored in the memory 109n in response to the request, and then a series of processing ends.

  In this way, the advertisement data for display is provided on the condition that there is a user who can be recognized, and that there is a user who has watched a broadcast program in the past under the current situation. 201 is prepared in the memory 109. For this reason, in the above step 803, when the user who is the target when the advertisement data 201 stored in the memory 109 is requested to the CATV station 200 can be recognized this time, YES is determined. As a result, the advertisement data 201 stored in the memory 109 is only for presentation to the user who considers it appropriate. In order to automatically present such advertisement data 201, the receiver operates as an advertising medium having a high appeal effect even while the power is turned off.

  As shown in FIG. 2, the receiver according to the present embodiment has a configuration in which a display device serving as an advertisement message display unit 104 is connected to one receiver. You may build the receiver which applied. A configuration in which the receiver is realized by one apparatus may be adopted.

  The selection of the advertisement data 201 that is considered appropriate for the user is basically focused on one user even if there are a plurality of recognized users, but the combination of the plurality of users is focused on. You may make it carry out. In this case, for example, if the ages of a plurality of users are close, the advertisement data 201 that is highly likely to be appropriate for a person of that age may be selected. For this reason, various modifications can be made in the selection of the advertisement data 201.

  A program for realizing the receiver as described above may be distributed by being recorded on a recording medium such as a CD-ROM, a DVD, or a memory card. Part or all of the program may be distributed via a communication network such as a CATV network or a public network. In such a case, the user can apply the present invention to the device by acquiring the program and loading it into an existing receiver or a data processing device equipped with a broadcast wave receiving function. Therefore, the recording medium may be accessible by a device that distributes the program.

It is a block diagram of the receiver by this Embodiment. It is a figure explaining the network system which a receiver can acquire information. It is a figure explaining the structure of the viewer information stored in the viewer information table. It is a figure explaining the data structure of viewing-and-listening recording information DB. It is a flowchart of the whole process. It is a flowchart of whole processing (continuation 1). It is a flowchart of whole processing (continued 2). It is a flowchart of an advertisement message data acquisition process. It is a flowchart of an advertisement schedule display process.

Explanation of symbols

101 Tuner 102 Decoder 103 Video Output Device 104 Advertisement Message Display Unit 105 TV Display Unit 106 CPU
107 Program ROM
108 Work RAM
109 Memory 110 Camera Unit 111 Image Recognition Unit 112 Switch Unit 113 Communication Device

Claims (4)

In a receiver capable of receiving information transmitted via broadcast and communication networks, respectively.
Data communication means capable of receiving, as the information, advertisement data for a user who is watching the broadcast via the communication network;
User recognition means for recognizing a user who is considered to be watching the broadcast;
Advertisement display means for acquiring and displaying the advertisement data selected based on the user recognized by the user recognition means by the data communication means;
A receiver comprising: For each broadcast program, further comprising history storage means for storing viewing history information indicating the user recognized by the user recognition means when broadcasting the broadcast program,
The advertisement display means refers to the viewing history information stored by the history storage means when there are a plurality of users recognized by the user recognition means, and selects advertisement data to be acquired by the data communication means;
The receiver according to claim 1. The advertisement display means refers to the viewing history information stored by the history storage means, and the user recognition means has watched the broadcast program currently being viewed in the past among the plurality of users recognized by the user recognition means. Identifying the user with the highest probability and selecting the advertising data to be acquired by the data communication means based on the identified user;
The receiver according to claim 2. In a program to be executed by a receiver capable of receiving information transmitted via broadcast and communication networks,
A data communication function capable of receiving, as the information, advertisement data for a user who is watching the broadcast, via the communication network;
A user recognition function for recognizing a user who is considered to be watching the broadcast;
An advertisement display function for acquiring and displaying advertisement data selected based on a user recognized by the user recognition function by the data communication function;
A program to realize