KR19980062009A - Apparatus for generating and transferring history of received broadcasting - Google Patents

Abstract

According to the present invention, when a broadcast channel watched by a viewer is switched while watching an airwave or a cable broadcast through a television or the like, data that can identify the switched channel or program and the time at which the broadcast is started Alternatively, by continuously recording the time watched and, if necessary, the viewer history information is concentrated and transmitted to a viewer rating research device so that the viewer can automatically know the viewer ratings of the particular broadcast program or advertisement or the viewers' taste of the broadcast program. A broadcast receiving history information generating and transmitting apparatus, comprising: a tuner (10) for demodulating and outputting a video signal by tuning a designated broadcast signal; A data extraction unit 20 for extracting digital data from a designated horizontal line in a vertical retrace section of the video signal; A timer 50 that elapses time from the set time; An input unit 70 for receiving an input of a viewer; A memory 30 for storing data; A modem 40 for connecting to a communication network and transmitting and receiving data; And a microcomputer 100 that controls the operation and status of the components and the data flow between the components, and generates viewing history information when the broadcasting channel is changed. There is no need to mobilize a large number of people, and it generates viewer history information every time the channel is switched, enabling not only a complete and accurate viewer rating survey for all but also partial views of a particular broadcast program, It is a very useful invention that makes it possible to investigate.

Description

Broadcasting history record generation and transmission device

The present invention relates to an apparatus for generating and transmitting broadcast reception history information. More particularly, the present invention relates to a method for converting a broadcast channel viewed by a viewer while watching airwaves or cable broadcasts through a television or the like. By continuously recording the data identifying the program and the time at which the broadcast was started or watched, and if necessary, the viewing history information is concentrated and transmitted to the viewer's specific broadcast program or advertisement. The present invention relates to a broadcast receiving history information generation and transmission apparatus for automatically knowing viewer ratings or viewers' tastes of broadcasting programs.

It is necessary to survey the ratings of broadcasting as a basic data for calculating the advertising fee or to find out the popularity of the program. Conventionally, a telephone number is randomly selected and a large number of people are mobilized to investigate the ratings of the over-the-air broadcasting. By calling many homes within a short time, a method of querying the broadcasting program being watched and asking for an answer was used.At present, a research agency specialized company was established and commissioned by the same method as above. The investigation is being carried out.

However, there are many problems when using the above-mentioned audience rating research method, which are listed in order as follows.

First, it is necessary to identify the programs that are currently being watched, and therefore, it is necessary to mobilize many investigators, thereby increasing the economic burden on the research institutes, making it difficult to manage human resources efficiently, and when using non-resident investigators, There is a problem of having a number of people;

Second, in order to investigate the relative audience ratings between broadcasting stations, it is necessary to examine the audience ratings in the same time zone. Since the airing time of the program is limited, the number of samples for the audience rating survey is limited, and accordingly, a randomly selected sample is selected. There may be a case in which a particular floor (age, gender, residence, etc.) is biased, and in this case, an overall rating may not be reflected and an inappropriate rating may be investigated;

Third, due to the influence of home appliances operated by the remote control, even though the broadcasting program to be watched is easily and frequently changed, it is determined that the viewing of the program at the present time responding to the telephone inquiry is the viewing of the program, and the viewer rating is calculated. By doing so, there is a problem of causing a deviation from the actual audience rating;

Fourth, if the subject answering the call is a child who does not respond to the audience rating survey or cannot answer the question correctly, there is a problem in that an economic loss incurring unnecessary time and line fees occurs.

Fifth, because the subject of the survey to answer the call should be premised, there is a problem that can be an incorrect audience rating survey if the subject deliberately incorrectly answered to conceal his or her inclination;

Sixth, regardless of the program currently being broadcast, you can perform a rating survey on the previous program by using a questionnaire or telephone.However, this method not only reduces the reliability of the rating survey due to the inaccurate memory of the survey subjects, In the case of a research subject who watched a program, there are many problems such as generating an audience rating error as mentioned above.

Therefore, the present invention was created in order to solve the above problems, the generation of broadcast reception history information that does not require the number of surveys, regardless of the viewing time zone, and enables complete audience rating investigation without actual error and no error at all. The purpose is to provide a transmission device;

Another object of the present invention is to provide an apparatus for generating and transmitting broadcast reception history information, which enables classified viewer rating investigation according to the gender and age of a viewer;

Still another object of the present invention is to provide an apparatus for generating and transmitting broadcast reception history information that enables viewers to survey viewers from anywhere regardless of the viewer's location.

1 illustrates a configuration of an embodiment of a broadcast receiving history information generation and transmission apparatus according to the present invention,

2 is a signal waveform centering on the vertical retrace section of a composite video signal.

(A) is the signal waveform of odd field,

(B) is the signal waveform of even field,

3 is a shape diagram of a 1H signal containing data in a vertical regression section,

4 is a data timing diagram of the signal of FIG. 3;

FIG. 5 is a waveform diagram illustrating a comparison between a data signal section input to the signal shaper of FIG. 1 and a portion where a signal is shaped.

6 is a waveform diagram showing a demodulated signal and a process of demodulating a digital signal from the signal;

FIG. 7 is a diagram of viewing history information created using a channel switched time and a channel number.

FIG. 8 is a diagram of another viewing history information prepared by calculating a time of viewing a corresponding channel in the viewing history information of FIG.

FIG. 9 illustrates another viewing history information in which date information is added to broadcasting selection time information of viewing history information of FIG. 7.

10 is a diagram illustrating a packet including an 'on-air' field according to the KBPS standard.

11 is a diagram illustrating a packet carrying a 'broadcasting station name' according to the KBPS standard,

FIG. 12 is a diagram of another viewing history information of FIG. 7 prepared using only a viewing start time and a viewing time.

Explanation of symbols on the main parts of the drawings

1 antenna 10 tuner

20: data extraction unit 21: signal line selector

22: signal equalizer 23: data demodulator

30 memory 40 modem

50: timer 70: input unit

100: micom

Broadcast receiving history information generating and transmitting apparatus according to the present invention for achieving the above object comprises: a tuning means for selectively tuning the received broadcast signal to demodulated output to a video signal; Data extraction means for extracting visual information data contained in a specific section of the video signal; And control means for generating an arbitrary broadcast reception history information corresponding to the broadcast channel data corresponding to the selected tuned broadcast signal and the extracted time information data; and selectively tuning the received broadcast signal. Tuning means for demodulating and outputting the video signal; Data extraction means for extracting broadcast program data and time information data contained in a specific section of the video signal; And control means for generating arbitrary broadcast reception history information corresponding to the broadcast program data corresponding to the selected tuned broadcast signal and the extracted time information data. Are characterized in that for generating the arbitrary broadcast reception history information in;

The apparatus for generating and transmitting broadcast reception history information according to the present invention may further include storage means for storing the generated broadcast reception history information and a unique identification code for identification of the device. ;

The apparatus for generating and transmitting broadcast reception history information according to the present invention further comprises: transmission means for transmitting any broadcast reception history information and a unique identification code stored in the storage means in a set transmission path according to a control signal of the control means. There is another feature to the configuration.

In the broadcast receiving history information generating and transmitting apparatus according to the present invention constructed and configured as described above, when a broadcast signal corresponding to a specific channel among the received broadcast signals is tuned by the tuning means and output as a video signal, the data extracting means. Extracts visual information data in a predetermined section within a video signal and inputs the same to the control means. The control means generates history data for the selected channel by using the data for identifying the tuned broadcast channel and the current time data extracted from the data extraction means, and if necessary, storing the generated history data. It stores in the and control the transmission means to transmit the history data to a predetermined communication address. When there is a channel change in the selected channel, the control means repeats the history data generation process as described above.

The viewing history information stored in the storing means is periodically transmitted by the control means or when the capacity of the storing means is insufficient, and is transmitted to the outside through the transmitting means. The device may analyze the received viewing history information and perform an overall viewer rating survey.

In addition, the control means may transmit the viewing history information according to the command signal in the received broadcasting signal, and may transmit the viewing address extracted from the broadcasting signal received by the data extracting means as a destination. When transmitting the information, the unique identification code assigned to the device can be sent together so that the source of the viewing history information can be identified, so that the audience rating can be further refined by using prior information (gender, age, place of residence, occupation, etc.) of the source. Allow investigation to take place.

The current over-the-air broadcasting channel is assigned the same number between remote locations, and in order to conduct a viewership survey by centrally concentrating, it may transmit a region identification code together with the viewing history information, and identify the region at this time. The code is extracted by the data extraction means in the received broadcast signal. And, in order to avoid the need for the area identification code as described above, unlike the above method, the control means is assigned to each program extracted by the data extraction means from the currently received broadcast signal when the broadcast channel is changed. The viewing history information is generated by using the assigned unique identification code and the visual information to which the broadcasting channel is switched, stored in the storage means if necessary, and the entire viewing history information is created by repeating the generation process. Such viewing history information can also be used as an audience rating survey data in the same manner as the viewing history information created by the above method.

Hereinafter, the operation of an embodiment of the apparatus for generating and transmitting broadcast reception history information according to the present invention will be described in detail with reference to the accompanying drawings.

1 shows a configuration of an embodiment of an apparatus for generating and transmitting broadcast reception history information according to the present invention, comprising: a tuner 10 for demodulating and outputting an image signal by tuning a broadcast signal specified in an over-the-air broadcast signal; A signal line selector 21 for selecting and outputting a designated horizontal line in the vertical retrace section of the video signal; A signal shaper (22) for shaping the signal of the selected horizontal line into a signal within a predetermined level; A data demodulator (23) for sampling the shaped signal at predetermined intervals and demodulating the digital signal into digital data; A timer 50 that elapses time from the set time; An input unit 70 for receiving an input of a viewer; A memory 30 for storing data; A modem 40 for connecting to a communication network and transmitting and receiving data; And a microcomputer 100 that controls the operation and status of the above components and the flow of data, and generates viewing history information when the broadcasting channel is changed.

In an embodiment of the apparatus for generating and transmitting broadcast reception history information according to the present invention configured as described above, first, when a specific broadcast channel is tuned by the tuner 10, the tuner 10 outputs a demodulated video signal. do. In addition to the video signal section that can be viewed, the video signal includes a vertical retrace section for vertical retrace of the image scan as shown in FIG. 2, wherein a signal shown in FIG. 3 is loaded among the horizontal lines located in the vertical retrace section. The designated line (the 16th line in the case of using the currently established KBPS standard) is selected by the signal line selector 21 and outputted. The signal output from the signal line selector 21 is removed by the signal shaper 22 as shown in FIG. 5 to remove the upper and lower portions of a predetermined level, thereby shaping the waveform of the data signal portion, and the shaped signal is the data demodulator ( 23) to be demodulated into digital data. FIG. 6 illustrates a process of demodulating a digital signal in the data demodulator 23. The data demodulator 23 samples a signal that is shaped and output from the signal shaper 22 at regular intervals and reads the value. After that, a section in which a plurality of values of a predetermined level or more are read is interpreted as a signal of 'logic 1', and otherwise is interpreted as 'logical 0'. When the data signal shown in Fig. 6 is read in this manner, the data becomes '11001 ...' data. Unlike the method illustrated in FIG. 6, when sampling data in synchronization with the 'start bit' in the data signal section of FIG. 4, a sampling frequency lower than that illustrated in FIG. 6 may be used because the sampling timing is accurately adjusted. .

The data demodulator 23 transmits demodulated digital signals to the microcomputer 100, and the microcomputer 100 temporarily stores the received data in the memory 30. The data demodulation process by the data demodulator 23 and the storage process in the memory 30 are continuously performed. The microcomputer 100 stores data temporarily stored in the memory 30 according to a predetermined protocol. Take the information you want to interpret and use it. In the above embodiment, the present time information is read out of the received data, and the time information of the timer 50 is updated as the time information so that the timer 50 always maintains the correct current time. . The time update operation may be performed only at predetermined intervals or only when the received current time information is different from the time maintained by the timer 50.

In the case of generating the viewing history information to be described below, the above-described embodiment with a timer is compared with the embodiment without the timer 50, which receives and directly uses the time data demodulated by the data demodulator 23. Example is more preferable. This means that if the time demodulated by the data demodulator 23 is used directly without the timer 50, the time data (the time data is transmitted because there is a lot of different information in the signal transmitting the time data) is present in the demodulated time data. Since a time interval occurs between transmissions), time data are not extracted correctly by the data extracting means when the signal S / N ratio of the broadcast channel to be tuned is not exactly coincident with the time when the actual broadcast channel is switched. Because it may not.

On the other hand, while the above-described time adjustment process is being performed, when a broadcast channel is initially selected or a user requests a change of a broadcast channel through the input unit 70, the microcomputer 100 inputs the input unit 70. The change command is inputted through the control panel, and the tuner 10 is controlled to tune to the broadcast channel requested by the user. The tuned broadcast signal is displayed as an image on an external image display device (TV, etc.), and the microcomputer 100 controls channel tuning of the tuner 10 and at the time the change request is made, the timer 50. In FIG. 7, the current time is read and the read time A and the changed channel number B are stored together in the memory 30 as one viewing history information e _a1 as shown in FIG. While watching one channel for a while and the user commands the selection of another channel through the input unit 70, the microcomputer 100 generates the second viewing history information e _a2 in the same manner as described above. To be added to the memory 30. From the second viewing history information (e _a2 ), the microcomputer 100 determines that the viewing time of the first channel is a short time. Since the viewing time during the short time may be useless information in the actual viewership survey, The viewing history information e _a1 may be deleted from the memory 30. However, since the apparatus for checking the actual viewer rating is performed by the apparatus for determining the useless information, it is desirable to provide all of the information to the outside without deleting the information. The microcomputer 100, when the operating power of the device according to the invention is cut off in order to be able to calculate the viewing time of the channel last watched by the external crisp rate surveying device, the operation power is time and One viewing history information e _a6 is generated as a number 0 (not to mention a special character other than 0 or a number distinguished from a channel number) indicating that the operation power is cut off.

In addition, the microcomputer 100 may be created by including the information up to the second in the time (A) information, and the viewing history information generated in this way is exactly the same as the actual viewing time, so that the program having a very short time ( It also includes information about the viewing time of advertisements, promotional programs, etc.). In addition, since the microcomputer 100 knows the changed time of each channel, the microcomputer 100 calculates the viewing time C other than the selected time A and the channel number B without generating the viewing history information as shown in FIG. The viewing history information (e _b1 , e _b2 ,...) As shown in FIG. 8 to which time information of viewing the channel is added may be generated and transmitted.

When the viewing history information is prepared during the one-day broadcasting time, the microcomputer 100 controls the modem 40 to connect to the communication address designated as a destination and connects with an external viewing history information concentrator. In this case, all of the viewing history information generated according to the above-described method is transmitted. If it is set to generate viewing history information according to all channel changes regardless of the length of the viewing time of the user, viewing history information exceeding the capacity of the memory 30 may be generated when the channel change is made at any time. Since the viewing history information exceeding the capacity of the memory 30 may be generated even when the detailed viewing history information up to the second unit is generated, the microcomputer 100 may generate the viewing history information for one day before generating the viewing history information. When the capacity of the memory 30 may be exceeded, the modem 40 is controlled to connect to the viewing history information concentrator to transmit partial viewing history information.

If many devices intend to intensively transmit to the same communication address, traffic congestion may occur and data transmission may not be performed smoothly. It can be prevented. In the case of distributing the traffic in this manner, the viewing history information to be transmitted requires the date on which the information is generated. Therefore, the microcomputer 100 reads the date information from the data demodulated in the data demodulator 23 (or demodulated and already stored in the memory 30), and reads the date from the timer 50. The viewing history degree (e _c1 , e _c2 , ...) as shown in FIG. 9 may be generated along with the current time.

If you do not want to target a large number of unspecified people using the device according to the present invention, and want to investigate by more specifically and subdividing the viewer rating, the memory 30 may be assigned to the device according to the present invention. The personal information (gender, age, place of residence, occupation, etc.) of the owner or the main viewer of the device is recorded in the viewer rating device. In this case, when the microcomputer 100 wants to transmit the viewing history information stored in the memory 30 through the modem 40, the microcomputer 100 is stored in the memory 30 together with the viewing history information or the identification is performed. The unique identification code set in the switch is read and transmitted. The external viewership survey device can specify the viewer from the information about the viewer stored in advance from the unique identification code of the device, so that the received viewership information and the specified viewer information can be used for various methods (gender, age, Occupations, etc.) and classify viewers accordingly.

As described above, unlike the post-programming viewer rating research that determines a viewer's rating by setting a predetermined time period, when an immediate viewer rating survey is performed, a "transmission command signal" is carried in the broadcast signal. The 'transmission command signal' is demodulated into data through the signal line selector 21, the signal shaper 22, and the data demodulator 23 according to the above-described process, and the demodulated data is transmitted to the microcomputer 100. It is interpreted as a viewing history information transmission command by the micom 100 accordingly to immediately transmit the viewing history information that has been created and stored in the memory 30 through the modem 40 immediately. In addition, since there may be a movement of a device for investigating the viewer rating, the microcomputer 100 does not transmit the viewing history information to a predetermined communication address. After acquiring through the data demodulator 23, the modem 40 controls the access to the obtained communication address and transmits the viewing history information generated through the modem 40 when the connection is established.

In addition, there may be movement between regions of the apparatus according to the present invention, and the channel numbers of the selected broadcasting stations may be the same between regions of each remote area, and even if the same channel number is the same broadcasting station, broadcasting programs between regions may be different from each other. In order to adjust this automatically, a local identification code can be carried in the broadcast signal. When the area identification code is carried in the broadcast signal, the area identification code is transmitted to the microcomputer 100 by the signal line selector 21, the signal shaping unit 22, and the data demodulator 23. It is stored in the memory 30. When the microcomputer 100 transmits the viewing history information, the microcomputer 100 reads the region identification code stored in the memory 30 and transmits the viewing information through the modem 40 together with the viewing history information.

As described above, unlike an embodiment in which a viewer rating survey of broadcast programs classified by regions is performed using a region identification code, another embodiment using program broadcast information transmitted together in a broadcast signal may be configured. The operation of the embodiment using the information will be described in detail.

According to KBPS, which is defined as the current program broadcasting information standard, a program of each broadcasting station is assigned a unique program code every week, and the program code corresponding to the currently broadcasting program is separately added to the 'on-air ID' field. I'm sending it. 10 illustrates a form in which the 'in broadcast' field is loaded. In the embodiment of the present invention using the program broadcast information, it may operate according to a predetermined KBPS standard, or may set a new standard at all and operate accordingly. However, since the operation principle is basically the same, and only the program code allocation method, the data type, and the packet type for transmitting the data are different, the following description will be given of the embodiment applying the KBPS standard. .

When data extracted from the 16th horizontal line is collected and configured in a vertical retrace section of a broadcast signal transmitted from a broadcasting station, one packet as shown in FIG. 10 is formed. The bit structure of the start data and the end data of the packet in which the 'in-broadcast' field of FIG. 10 is carried is equal to 0111 1111 0110 0001 and 0111 1111 1110 1111, respectively. Since two bytes of data are carried in one horizontal line, the start data is extracted by the data demodulator 23 when one vertical regression period passes. First, when a user inputs a channel change command through the input unit 70, as described above, the selected broadcast channel is tuned by the tuner 10 so that the signal line selector 21 and the signal shaper as a composite video signal. (22) and input to the data demodulator 23. Since the tuned video signal includes a packet as shown in FIG. 10 containing a code of a program currently being broadcast, the start data of the packet is extracted by the data demodulator 23 and transmitted to the micom 100. 100) takes the 43 to 56 bits (Local_ID, Main_ID, Sub_ID) after the start data among the 7 bytes of data extracted in the subsequent four vertical retrace sections, and temporarily stores them in the memory 30. The current time is read from the timer 50 to generate one viewing history information together with the program code temporarily stored in the memory 30. When the user selects another channel through the input unit 70, the program code is detected in the 'broadcasting' field in the video signal of the other channel tuned according to the above process to generate another viewing history information. In addition to the viewing history information stored in the memory 30. When the viewing history information is generated in this manner, the viewing history information in which the code of the selected broadcast program is recorded instead of the broadcasting channel number B selected in the viewing history information shown in FIG. 7 is operated. In this way, the created program code is unique regardless of the region or broadcasting station. Therefore, if the information about each program code (central or local broadcasting company, program type, program name, etc.) is stored in the apparatus for surveying the audience rating of the broadcasting, the above-described implementation is performed. Unlike the example, it is possible to perform a nationwide viewership survey centrally without sending additional regional identifiers.

In the above embodiment, there is no problem in performing the actual viewership survey even if only the main code of the program is used without using all the data in the 'on-air' field, but it is a continuous play. In this case, since the same main code is allocated regardless of the broadcast date, it may be necessary to distinguish it as a sub code (Sub code is assigned while being cycled between 01 ₍₁₆₎ and IF ₍₁₆₎ ). However, if the time data of the viewing history information generated at this time also has the information of the date, the time data of the viewing history information generated at this time also has the information of the date, or if the daily transmission is necessarily performed, the auxiliary code It does not need to be transmitted because it becomes excess information.

If the program code is assigned to a unique value only in one broadcasting station and operated so that the broadcasting codes can be duplicated when the broadcasting stations are different, the viewing history information generated above includes data for identifying the broadcasting station besides the program code. Must be stored. Currently, in the KBPS standard, a character for identifying a broadcasting station as shown in FIG. 11 is transmitted in a second packet, so that a character string in this packet is used as a broadcasting station identification code to generate and transmit viewing history information, or when the viewing history information increases, Due to the increased amount of transmission data, an identification code corresponding to the character string may be separately used to identify a broadcasting station.

In all the above-described embodiments, the method for generating viewing history information was created including the time data in which the channel was switched, but it is also possible to create the viewing history information for generating a much larger amount of data than in the case of including the time data. At least 10 bits (4 bits are allocated for hours and 6 bits for minutes) are required to transmit time data (actually, 2 bytes of space are used to facilitate the process of writing to memory). As shown in Fig. 12, when the operating power is applied to the apparatus according to the present invention, and only the time (D) of watching the channel is recorded when changing the channel thereafter, the maximum length of the viewing time is 255 minutes (8 bits). In this case, the space to be stored in the memory 30 and the time for transmitting the stored data are reduced.

FIG. 12 rewrites the viewing history information of FIG. 7 by the above-described method. In this case, when the channel is switched, the micom 100 does not generate the viewing history information for the switched channel at the time of channel switching. The viewing history information on the channel viewing before the conversion is generated. When the viewing history information as shown in FIG. 12 is transmitted to an external audience rating research apparatus, the apparatus for investigating the audience rating is added by cumulatively adding each viewing period (D) from the time of operating power to determine the viewing time zone of the corresponding program. It is necessary to calculate the start time and end time.

All configurations and operations described so far can be applied equally to the cable broadcasting and the like without any modification. In this case, however, the viewing history information is further used by using a pre-installed cable through which a broadcast signal is transmitted using a dedicated line modem or the like as a communication line, rather than transmitting the viewing history information through the telephone communication network by the modem 40. You can easily concentrate. In the case of a broadcasting station for over-the-air broadcasting, only cable broadcasting subscribers may use the broadcasting cable as a communication line for data reception through cooperation with the cable broadcasting station.

The broadcast receiving history information generating and transmitting apparatus according to the present invention configured and operated as described above does not need to mobilize a large number of people to investigate the viewer rating, and generates viewing history information whenever the viewer switches channels. Therefore, it is possible to conduct a complete and accurate viewer rating survey on not only all of a specific broadcast program but also partial viewing, and it is effective to make an immediate survey when a viewer rating survey is needed.

In addition, by making the centralized audience survey irrespective of the region or broadcasting station, it is possible to manage the fair and reliable viewer rating survey by eliminating the confusion caused by various viewer rating survey announcements. It is manufactured to be applicable to the situation even if the device moves between regions, so that no separate operation or device change is necessary, and the effect of completely eliminating economic losses such as occupying unnecessary communication lines by the audience rating research institute is Of course, it is a very useful invention that has an excellent effect of predicting the actual advertising effect in addition to the viewing rate of the broadcast program can also confirm whether or not the advertisement of the company.

Claims (5)

Tuning means for selectively tuning the received broadcast signal to demodulate and output the video signal; Data extraction means for extracting visual information data contained in a specific section of the video signal; And And control means for generating an arbitrary broadcast reception history information corresponding to the broadcast channel data corresponding to the selected tuned broadcast signal and the extracted time information data. The method of claim 1, And storage means for storing the generated arbitrary broadcast reception history information and a unique identification code for identification of the device. The method of claim 2, And transmitting means for transmitting any broadcast reception history information and a unique identification code stored in the storage means in a set transmission path according to the control signal of the control means. Device. The method of claim 1, And the control means generates the broadcast reception history information when the broadcast channel is switched. Tuning means for selectively tuning the received broadcast signal to demodulate and output the video signal; Data extraction means for extracting broadcast program data and time information data contained in a specific section of the video signal; And And control means for generating arbitrary broadcast reception history information corresponding to the broadcast program data corresponding to the selected tuned broadcast signal and the extracted time information data.