JP7254624B2 - VIEWING HISTORY ANALYSIS METHOD AND VIEWING HISTORY ANALYSIS SYSTEM - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Law March 29, 2019 Handed over materials related to the invention to the agent

The embodiments relate to a viewing history analysis method and a viewing history analysis system.

In recent years, with the development of Internet technology, an increasing number of people are using video-on-demand (VOD) services on television devices. Therefore, the number of television devices connected to the Internet is also increasing.
In such an environment, it is possible to collect a huge amount of viewing data (sometimes referred to as a viewing log) from each TV set via the Internet and analyze viewing conditions such as viewer ratings. It's becoming

JP 2017-28353 A JP 2017-188932 A

However, in the analysis of the viewing situation for series programs that are broadcast multiple times over a long period of time, such as dramas and animations, it was found that the TV was turned on by chance, the program was watched because the viewing habit of that channel was high, and the popular program before and after There is a possibility that it may not be possible to accurately evaluate the program, such as how many devices actually liked and watched the program, due to floating layer data due to various factors such as watching several times in the flow. .

An object of the present invention is to provide a viewing history analysis method and a viewing history analysis system capable of accurately performing viewing analysis of a series program.

A viewing history analysis method according to an embodiment is a viewing history that is a history of viewing a broadcast program from each viewing device that receives a broadcast program including a series program composed of a plurality of broadcast talks transmitted by broadcast waves. and each identification information that individually identifies each viewing device; an analysis unit that analyzes each viewing history and each identification information; and based on the analysis results of the analysis unit A service providing unit that provides services is used.

The viewing history analysis method calculates a viewing ratio, which is a ratio of the number of broadcast episodes watched to the total number of broadcast episodes of the series program, for each of the viewing devices from the viewing history, and The rank of the series program is determined according to the device ratio, which is the ratio of viewing devices satisfying the above, and data for outputting data for visualization indicating at least the rank and the device ratio of the series program is obtained.

FIG. 1 is a diagram showing a configuration example of an entire system including a broadcast signal transmitting device, a server, and a receiving device (viewing device) related to an embodiment. FIG. 2 is a diagram schematically showing a configuration example of a television receiver. FIG. 3 is a diagram schematically showing a configuration example of a server and an example of a personal computer of a user who receives the service. FIG. 4A is a diagram showing an example of an analysis screen displayed in the first embodiment. FIG. 4B is a diagram showing an example of a displayed analysis result in the same embodiment. FIG. 5 is a diagram showing an example of an analysis result displayed with changed sorting conditions in the same embodiment. FIG. 6 is a flowchart showing an example of the processing operation of the system for analyzing the viewing history and visualizing the analysis result in the same embodiment. FIG. 7 is a flowchart showing an example of the processing operation of the server for analyzing viewing history in the embodiment. FIG. 8 is a diagram showing an example of analysis results displayed for each viewing method in the second embodiment. FIG. 9 is a flow chart showing an example of the processing operation of the system for displaying analysis results by viewing method in the embodiment. FIG. 10 is a diagram showing an example of analysis results in which demograph attributes are displayed along the horizontal axis in the third embodiment. FIG. 11 is a flow chart showing an example of the processing operation of the system for displaying the analysis result with the demograph attribute as the horizontal axis in the same embodiment.

Embodiments will be described below with reference to the drawings.
FIG. 1 is a diagram showing a configuration example of an entire system including a broadcast signal transmitting device 100, a server 120, and a viewing device 140 according to this embodiment.
Reference numeral 100 denotes a broadcast signal transmitting apparatus (also called a broadcasting station) that broadcasts broadcast programs, and includes a broadcast program server 101 and a first basic function 102 .

The broadcast program server 101 is an area in which data of programs to be broadcast by the broadcast signal transmitting apparatus 100, program names, broadcast dates, descriptions of contents, and the like are stored in advance.
A first basic function 102 is a basic function of the broadcast signal transmitting apparatus 100, and is a function of encoding (also referred to as encoding) video signals, audio signals, etc. of programs to be broadcast, multiplexing them, and transmitting them as broadcast signals. have.

The server 120 exists on the cloud and is a server that collects viewing histories of programs viewed by the user of the viewing device 140 .
The server 120 identifies each viewing device 140 by an identification number that the viewing device (also called television device, television receiver, or broadcast signal receiving device) 140 has individually. The identification number held by the viewing device 140 is composed of, for example, a combination of numbers and alphabets.

The identification management unit 121 has a function of collecting and managing identification numbers possessed by the viewing device 140 via the network 180 . The identification management unit 121 may collect identification numbers possessed by the viewing device 140, for example, when the viewing device 140 is initialized.
The collection unit 122 has a function of collecting a viewing history, which is a history of viewing broadcast programs by the user of the viewing device 140 .

The analysis unit 123 has a function of analyzing the viewing history collected by the collection unit 122 . The service providing unit 124 has a function of providing services based on the analysis result of the analysis unit 123 .
The service providing unit 124 may provide useful information for the user of the viewing device 140, for example, based on the analysis result of the analyzing unit 123. FIG. Alternatively, the service providing unit 124 may, based on the result analyzed by the analyzing unit 123, provide information that is beneficial to the broadcast signal transmitting apparatus 100, which broadcasts the program to the viewing apparatus 140, the program production company, the sponsor of the program, and the like. You may provide information.

A receiving device 140 receives a program broadcast by the broadcast signal transmitting device 100 , and includes a digital broadcasting receiving function (second basic function 141 ) and a control unit 142 . The viewing device 140 may be, for example, a television receiver, or may be a recorder having a function of recording programs sent by broadcast waves. In the following description, the viewing device will be described as viewing device 140 . Although one television receiver is shown in the drawing, a large number of viewing devices 140 are connected to the server 120 .

The second basic function 141 is a basic function of the viewing device 140. It receives the broadcast wave sent from the broadcast signal transmitting device 100 and converts the encoded video signal (video stream) included in the broadcast wave. ), encoded audio signals (also called audio streams), application data and transmission control signals, decodes video and audio signals, receives application data, and analyzes transmission control signals. It has the function of

The control unit 142 has a function of controlling the viewing device 140 as a whole. The control unit 142 also has a recording unit that has a recording function. The control unit 142 also controls connection and data processing with peripheral devices connected to the viewing device 140, such as the display device 160, the speaker 161, the HDD (Hard Disk Drive) 162 bound to the viewing device 140, and the removable media 170. It also manages the transmission and reception of

The display device 160 has a built-in speaker 161 , displays the video signal decoded by the second basic function 141 on the display area, and outputs the audio signal from the speaker 161 . Note that the speaker 161 built in the display device 160 may be an external speaker connected via an I/F such as USB.

In the example of FIG. 1, the display device 160 is described as being separate from the viewing device 140, but may be integrated with the viewing device 140 as one function of the viewing device 140. FIG.
FIG. 2 is a diagram schematically showing a configuration example of the viewing device 140. As shown in FIG. The viewing device 140 includes the second basic function 141 and the control section 142, which are functions of receiving broadcast waves, as described above.

The second basic function 141 has a terrestrial digital television tuner 201-1 for terrestrial digital television broadcasting, a terrestrial digital demultiplexer 202-1, a terrestrial digital descrambler 203-1, and a video and audio 2K decoder 204-1. Similarly, the second basic function 141 includes a BS tuner 201-2 for BS digital broadcasting, a BS demultiplexer 202-2, a BS descrambler 203-2, a 2K video and audio decoder 204-2, and a 4K decoder 204. -3, has a decoder 204-4 for 8K. Similarly, the second basic function 141 includes a CS tuner 201-3 for CS digital broadcasting, a CS demultiplexer 202-3, a CS descrambler 203-3, a video and audio decoder 204-5 for 2K, and a decoder 204 for 4K. -6.

When the viewing device 140 receives a broadcast signal of digital terrestrial television broadcasting, the broadcast tuner 201-1 demodulates the stream (broadcast signal) sent by the broadcast wave. The demodulated stream (broadcast signal) is input to the terrestrial digital demultiplexer 202-1. The terrestrial digital broadcasting demultiplexer 202-1 separates the input multiplexed stream into a video stream, an audio stream, a caption stream, application data, and a transmission control signal, and inputs the video stream and the audio stream to the terrestrial digital broadcasting descrambler 203-1. do.

The terrestrial digital broadcasting descrambler 203-1 descrambles the video stream and the audio stream and inputs them to the 2K decoder 204-1.
The video stream and audio stream are decoded by the 2K decoder 204-1.
The decoded video data is output to the display device 160 via the video/audio/caption data processing unit 206 and the display signal output unit 207 . The decoded audio data is output to the speaker 161 built in the display device 160 via the video/audio/subtitle data processing unit 206 and the display signal output unit 207 .

The video/audio/subtitle data processing unit 206 can perform brightness adjustment, color correction, etc. on video data, and can perform sound quality adjustment, frequency characteristic adjustment, etc. on audio data. .
The display signal output unit 207 controls chromaticity, resolution, etc. according to the display capability of the display device 160 .

The audio signal output section 208 can convert the audio output according to the speaker system (just a stereotype, a 5-channel system, etc.).
When the viewing device 140 receives a BS digital broadcast signal and a CS digital broadcast signal, it demultiplexes the stream (broadcast signal) sent by the broadcast wave, as in the case of receiving the broadcast signal of the terrestrial digital television broadcast. Processing and descrambling are performed, and video data is output to the display device 160 and audio data is output to the speaker 161 .

The example of the viewing device 140 in FIG. 2 is an example in which the tuner for digital terrestrial television broadcasting incorporates one of the digital terrestrial television tuners 201-1. may be incorporated. Similarly, the viewing device 140 may incorporate a plurality of BS digital broadcast tuners and a plurality of CS digital broadcast tuners.

The control unit 142 controls the entire viewing device 140 . Also, the control unit 142 acquires the viewing history of the program viewed by the user of the viewing device 140 and transmits the acquired viewing history to the server 120 via the network 180 . The control unit 142 has a network I/F 181 that is an I/F with a communication network 180 and a remote controller I/F 182 that is an I/F with a remote controller (remote controller) 190 as I/F with the outside.

Here, the viewing history indicates the history of all programs received by the viewing device 140 through a plurality of tuners. Specifically, for example, the user of the viewing device 140 receives the broadcast wave and views the program A displayed on the display device 160 while simultaneously recording the program B by the recording unit 143, which is the recording function of the viewing device 140. If so, the control unit 142 stores a live viewing history that is a history of viewing program A (referred to as live viewing), a playback viewing history of playback viewing of program B (viewing of playback of a recorded program), and furthermore, It is possible to acquire a reserved viewing history that is viewing by viewing reservation of the program C. FIG.

For playback viewing, for example, by reserving a program to be recorded in advance by the reservation function of the recording function, the designated program B is recorded in the recording unit 143 at the designated time, and only the recording is performed without being displayed on the display 160. In some cases.
As described above, the viewing device 140 of the present embodiment can take various viewing modes such as live viewing, recording/playback viewing, and reserved viewing by viewing reservation.

The various viewing histories described above may be composed of, for example, a combination of channel number, program name, broadcasting station name, viewing start time, and viewing end time. The control unit 142 stores the above-described various viewing histories for each type in a storage area (not shown) that internally holds the acquired viewing histories.

The control unit 142 assigns an identification number that the viewing device 140 has to the acquired viewing history, and transmits the acquired viewing history to the server 120 via the network 180 at an arbitrary timing.
FIG. 3 is a diagram schematically showing an example of the configuration of the server 120 and an example of a personal computer of a user who receives the service.

The collection unit 122 collects viewing histories sent from the viewing device 140 via the network 180 and stores them in an internal storage area (not shown) for each given identification number, and also collects the viewing histories. information relating to storage of the received viewing history, such as the storage address of and the assigned identification number, is transmitted to the identification management unit 121 .

The identification management unit 121 stores and manages the information regarding storage and the identification number sent from the collection unit 122 . Thus, the identification management unit 121 can manage viewing history data (viewing log) for each identification number of the viewing device 140 .
The analysis unit 123 analyzes the viewing history stored in the collecting unit 122, for example, the viewing history of the specified identification number for the specified period. The analysis results are sent to the service providing unit 124, and the service providing unit 124 provides services based on the sent analysis results. Service data provided by the service providing unit 124 is connected via a network 310 so that it can be seen from, for example, a personal computer 311 . Note that the personal computer 311 may be a mobile terminal or the like. The server 120 may also include a display unit (not shown) capable of displaying the content of services provided by the service providing unit 124 . Alternatively, analysis unit 123 and service providing unit 124 may be outside server 120 .

If the service providing unit 124 is outside the server 120, the analyzing unit 123 and the service providing unit 124 may be inside a PC (personal computer), for example. Alternatively, the analysis unit 123 and the service provision unit 124 may be in a mobile terminal such as a smart phone or tablet. In this case, the PC or mobile terminal is connected to the server 120 via the network 180 and can access the server 120 . Therefore, the PC or mobile terminal can acquire the viewing history information stored in the collection unit 122 at any location. Also, the operator of the PC or mobile terminal can perform the analysis by the analysis unit 123 at any place. Further, the operator of the PC or mobile terminal can provide services and value-added data at any location by the service providing unit 124 based on the analysis result of the analyzing unit 123 . A mobile terminal including analysis unit 123 and service providing unit 124 may be called a viewing history analysis device.

The service provided by the service providing unit 124 may be the provision and display of visualized data based on the analysis result of the analysis unit 123, for example. The visualized data is, for example, a viewing history group A, which is a set of viewing histories of the viewing device 140 having an identification number that the analysis unit 123 has analyzed, from among the vast amount of viewing history collected by the collection unit 122. Furthermore, by reorganizing the viewing history group A from various viewpoints using various parameters, it is easy for the user to understand that there is a certain tendency in the viewing history group A, which seems to be chaotic, using graphs and tables. It is to provide and display in a form.

Such a service for visualizing the viewing history group A can be useful information for the side that broadcasts programs to the viewing device 140, such as the broadcasting station 100, program production companies, and program sponsors.
In this embodiment, among broadcast programs, series programs in particular are targeted for analysis. A series program is a program that is broadcast continuously or intermittently over multiple periods with intermittent periods such as dramas and animations.
Includes series programs that are broadcast multiple times over a long period of time, and season programs that are a set of multiple series programs. In the series program, each broadcast is called a broadcast story.

In this embodiment, it is possible to specify "demograph attribute" and "viewing style (viewing method)" to narrow down the viewing history to be analyzed and change the display contents of the analysis result. "Demograph attribute" includes items such as age and sex, and can be specified by combining age and sex. For example, designations such as "whole area", "whole family", "M3", "M2", "M1", "T", "F1", "F2", and "F3" can be made. In the "viewing mode", designations such as "live viewing", "recording/playback viewing", and "viewing reservation" can be made.

In this embodiment, "contact rate" and "total contact rate" are defined as evaluation indices for evaluating series programs. As this preparation, "viewing ratio" and "apparatus ratio" are defined.
The viewing ratio is obtained for each viewing device 140, and is the ratio of the number of actually viewed broadcast episodes to the total number of broadcast episodes including the number of broadcast episodes of the series program or scheduled to be broadcast. In this embodiment, considering the limitation that the information on the broadcast schedule can basically be obtained only up to one week ahead, the ratio of the number of broadcast episodes actually viewed to the number of broadcast episodes of the series program is taken as an example. is shown.
Here, "watched one episode" means that the viewing time of one episode is more than a certain value, or the ratio of one episode to a certain value or more (for example, the viewing time to the total broadcasting time of one episode) ratio).
In addition, since it is determined from the viewing history whether or not the content has been viewed, for example, the case where the power of the viewing device 140 happened to be turned on, even though the user did not view it, may be included in the case of "viewed". .

The device ratio is obtained for each series program, and is the ratio of the number of viewing devices whose viewing ratio is equal to or higher than a certain value to the total number of viewing devices to be analyzed. In this embodiment, the denominator of the device ratio is the number of all viewing devices to be analyzed, but it is not limited to this. good too.

The contact rate is the ratio of devices required for each viewing mode (or viewing method) including "live viewing", "recording playback viewing", and "viewing reservation" for each series program. Furthermore, the average contact rate is obtained by dividing the contact rate by the total number of broadcast episodes of each series program.
The total contact rate is the ratio of devices obtained by combining the viewing history data for at least two of the viewing modes including "live viewing", "recorded playback viewing", and "viewing reservation" for each series program. is. The viewing time when calculating the viewing ratio in the total contact rate is the broadcast time viewed regardless of the viewing style. For example, if the same part is viewed repeatedly in a plurality of viewing modes, only the viewing time in any one viewing mode is regarded as the viewing time. Furthermore, the total contact rate divided by the total number of broadcast episodes of each series program is taken as the average total contact rate.

Also, the contact rate can be obtained by first obtaining the overall contact rate and then dividing the total contact rate by viewing mode. In the total contact rate, when calculating the viewing rate as described above, the viewing time in all viewing modes is considered, so the result may differ from the contact rate calculated after dividing the viewing history data by viewing mode. have a nature.
In addition, the viewing rate when obtaining the contact rate or total contact rate for the viewing mode by "viewing reservation" is calculated using the viewing time of the reserved program, or when all the reserved programs are viewed. It may be requested as
It should be noted that the names, definitions, types, etc. of the conditional parameters displayed on the analysis screen and the options, values, evaluation indices, etc. for them are shown as examples in this embodiment, and are not shown in this embodiment. It is not limited.
(First embodiment)
In this embodiment, an example of analyzing the viewing history and displaying the ranking of series programs as the analysis result will be described.

FIG. 4A is a diagram showing an example of an analysis screen displayed in this embodiment, and is an analysis screen displayed on the screen of the personal computer 311, for example, in order to evaluate a series program.
A display frame 40 is an example of an analysis screen that displays selection tabs for setting analysis conditions and analysis result display methods. can. Items that can be selected include "Evaluation Criteria", "Region", "Demograph Attributes", "Sorting Criteria", and "Viewing Judgment". Although "demograph attribute" is indicated as "demograph" in the drawing, "demograph" will have the same content hereinafter.

In "Evaluation Criteria", a method for evaluating programs can be selected, for example, "Total contact rate", "Contact rate by viewing method", "Demograph attribute analysis of total contact rate", etc. can be specified. In the "demogram", the viewing history to be analyzed can be extracted from the selected demogram item. "Sort Criteria" is an item that specifies the criteria for determining the display order of the analysis results. Can be specified. "Overall (watched at least once)" is a condition related to "a viewing device that has watched a certain series program at least once", and "more than 70% viewing" is a condition related to "a viewing device that has watched a certain series program more than 70%". It is a condition. In addition, "whole (watched at least once)" and "more than 70% viewing" are also used as analysis conditions. Numerical values such as 1 time and 70% may be set as condition parameters so that specific values can be set. In the "viewing judgment", in order to judge "whether or not one broadcast episode has been watched on the viewing device", the ratio of viewing time to the total broadcast time of one broadcast episode can be specified.

In addition, in this embodiment, an example of designating a value with a selection tab is shown, but for example, a method of directly inputting a value may be used, and the format is not limited to the selection tab. Although not shown in the figure, the items that can be specified may include, for example, the date and time of the viewing history data to be analyzed, the program organization channel, and the like.

In the diagram shown in FIG. 4A, the "evaluation criteria" is "total contact rate", the "area" is "Kanto", the "demogram" is "whole area", and the "sorting criteria (viewing frequency)" is "total ( An example is shown in which "viewing judgment" is set to "1/3".
FIG. 4B is a diagram showing an example of analysis results displayed on the screen of the personal computer 311 in this embodiment.

The display frame 41 displays, for example, setting values for analysis conditions and analysis result display methods. The display items include "demogram" and "sorting criteria (number of views)", and for example, the setting values set in the display frame 40 in FIG. 4A are displayed. FIG. 4B shows an example in which "whole region" is displayed in "demogram" and "whole (viewed even once)" is displayed in "sorting criteria (number of views)". Furthermore, in the display frame 41, setting values can be designated for each item from a selection tab (not shown) or the like, thereby changing the display of analysis conditions and analysis results.

In the display frame 42, a comprehensive ranking is displayed, and a ranking of series programs, which is the result of ranking the analysis results based on the sort criteria, is displayed. In the display frame 42, items such as "Rank", "program name", and "overall rank difference" are displayed. “Rank” is the rank (order) for the series program determined by the sort criteria displayed in the display frame 41 or the sort criteria specified in the display frame 41 . A "program name" corresponding to the "rank" is displayed to the right of the "rank". In addition, the "overall rank difference" is, for each series program, the rank value based on the sort criteria displayed in the display frame 41 and the rank value analyzed based on the sort criteria "whole (watched even once)". is the difference. In FIG. 4B, the "Rank" ranked by the sorting criterion "Overall (seen even once)" is displayed, so the "Overall Rank difference" is displayed as 0 for all series programs. Examples are given.

In the display frame 43, the total contact rate (in the figure, average overall contact rate) is overlaid as a bar graph.
Here, the ratio of devices for “total (watched at least once)” always includes the ratio of devices for “watched at least 70%”, so the bar graph for “total (watched at least once)” becomes longer. With this in mind, two bar graphs are superimposed, with the bar graph of the "overall (seen at least once)" percentage of devices always on the bottom. In this way, both bar graphs can always be viewed at the same time, facilitating comparison. The difference between the bar graphs of "total (watched at least once)" and "viewed more than 70%" means the percentage of viewing devices that watched the series program (viewing percentage) less than 70%, and this percentage can be considered to correspond to the floating layer ratio, such as those who just happened to watch a series program. Assuming that the device ratio of "more than 70% viewing" is the ratio of the fixed class, it is easy to understand the relationship between the fixed class and the floating class for series programs. Also, for example, a series program with a large difference between the two bar graphs indicates that "there is a high possibility that the series program was watched by chance" or that "there is a high possibility that many viewers stopped watching in the middle". This information can be used for program production.
Note that the two bar graphs may alternately blink (automatically blink) for display. In this way, the user can easily or intuitively compare two values.
Fig. 4B shows a display example of the analysis results when the sorting criteria is set to "whole (watched at least once)", but next is a display example when the sorting criteria is changed to "more than 70% watched". show.

FIG. 5 is a diagram showing an example of an analysis result displayed with changed sorting conditions in the same embodiment.
Since the display frame 51, the display frame 52, and the display frame 53 correspond to the display frame 41, the display frame 42, and the display frame 43, respectively, a detailed description with respect to FIG. 5 is omitted.
A display frame 51 shows an example in which the sorting criterion is changed from the state of the display frame 41 in FIG. 4B to "70% or more watched". The display of the overall ranking in the display frame 52 and the display of the device ratio bar graph in the display frame 53 has been changed to the display in the case of the sorting criterion of "viewing of 70% or more". For example, in the display frame 43 of FIG. 4B, the bar graphs for "all (watched at least once)" are displayed in descending order from the top, but in the display frame 53, the bar graphs for "watched more than 70%" are displayed in descending order from the top. is displayed in Also, the overall ranking of the display frame 52 is changed from that of the display frame 42 .

There is a high possibility that the viewing devices that have "viewed 70% or more" are fixed demographics who actually liked the series and continued to view it. In recent years, there are many cases where even finished series programs such as video distribution, movie adaptation, pachinko, and game collaborations are used on other occasions. At this time, when estimating the number of viewers who will follow a new development, it is important to accurately grasp how many fixed layers actually liked and watched the series program. From FIGS. 4B and 5, it is possible to provide the proportion of the fixed layer for each series program, and from FIG. 5, it is possible to provide the viewing ranking of the fixed layer.

In the "overall rank difference" shown in the display frame 52, the larger the value, the higher the ranking in the fixed layer than the ranking in the floating layer, and the smaller the value, the lower the ranking in the fixed layer than the ranking in the floating layer. It is shown that.
Next, an operation example of the system according to this embodiment for displaying the analysis results shown in FIGS. 4B and 5 on the screen of the personal computer 311 will be described.

FIG. 6 is a flow chart showing an example of the processing operation of the system for analyzing the viewing history and visualizing the analysis result in this embodiment.
When receiving a command or the like from the personal computer 311, the service providing unit 124 causes the personal computer 311 to display an analysis screen for evaluating the series program (step S1). Here, the analysis screen is a screen for designating condition parameters such as analysis conditions and a display method of analysis results, as shown in the display frame 40 of FIG. 4A. The service providing unit 124 receives the condition parameters set on the analysis screen from the personal computer 311 (step S2). Condition parameters used in this embodiment include "evaluation criteria", "demograms", "sorting criteria (viewing count)", and "viewing determination". "Evaluation criteria" is "total contact rate", area is "Kanto", "demogram" is "whole area", "sorting criteria (viewing number)" is "whole (viewed even once)", The "viewing judgment" is set to "1/3". The service providing unit 124 causes the analyzing unit 123 to analyze the viewing history according to the received condition parameters (step S3). As for step S3, an analysis example will be described in detail with reference to FIG.

FIG. 7 is a flowchart showing an example of the processing operation of the server for analyzing viewing history in the same embodiment, and is a flowchart showing step 3 in FIG. 6 in detail.
The analysis unit 123 extracts, from the viewing history, a viewing device group R, which is a set of viewing devices r on which even a small amount of the series program SP to be analyzed has been viewed, according to the received condition parameters (step S31). Let the number of elements in the viewing device group R be the first number of viewing devices N1. The following steps are executed for all the viewing devices r in the viewing device group R (step S32). Assuming that the number of episodes sp of the series program SP viewed by the viewing device r is N_sp, N_sp is counted (step S33). Here, whether or not the broadcast story sp has been viewed is determined by, for example, the following equation.

Time when the broadcast story sp was viewed on the viewing device r/broadcast time of the broadcast story sp≧TH_sp
However, TH_sp is a real number of 0≦TH_sp≦1. In this embodiment, for example, TH_sp=1/3. In addition, since the overall contact rate is used in this embodiment, the time when the broadcast story sp was viewed by the viewing device r here is the broadcast time when it was viewed regardless of the viewing mode, and any overlapping part It is the viewing time in one viewing mode.

N_sp is obtained by confirming the above conditions for all broadcast talk sp, and it is confirmed whether or not N_sp is greater than 0 (step S34). If N_sp=0 (NO in step S34), it is assumed that the viewing device r has never viewed the series program SP, and the following analysis is not performed. If N_sp>0 (YES in step S34), the number of second viewing devices N2 is counted (step S35). The second number of viewing devices N2 corresponds to the number of viewing devices that have viewed the series program SP at least once, that is, the number of viewing devices with the sorting criterion of "total (viewed at least once)".

A viewing rate P1 is obtained from the following equation for viewing devices r that have viewed the series program SP at least once (step S36).
P1=N_sp/number of broadcast episodes sp of series program SP The obtained P1 is compared with a threshold value TH_P1 (step S37). TH_P1 is a real number satisfying 0≦TH_P1≦1, and in this embodiment, for example, TH_P1=0.7. If P1≧TH_P1 (YES in step S37), the number of third viewing devices N3 is counted (step 38). In the present embodiment, the third number N3 of viewing devices corresponds to the number of viewing devices that have viewed "more than 70%" of the series program SP, that is, the number of viewing devices that are considered to be of the fixed class who frequently view.

Steps S32 to S38 are repeated for all N1 viewing devices r in the viewing device group R (step S39). When steps S32 to S39 are completed, device ratios P2 and P3 are obtained (step S40). In this embodiment, the device ratio P2 is the total contact rate of the viewing devices that have viewed the series program SP at least once, that is, the viewing devices that correspond to the sorting criteria of "total (watched at least once)". Further, the device ratio P3 is the total contact rate of the viewing devices of the fixed class that often watch the series program SP, that is, the viewing devices corresponding to the sorting criteria of "watching 70% or more". P2 and P3 are obtained as follows. N0 is, for example, the number of all viewing devices included in the viewing history group A to be analyzed.

P2=N2/N0
P3=N3/N0
Steps 31 to 40 are performed for all the series programs SP to be analyzed, and total contact rates P2 and P3 are obtained respectively.
Returning to the flowchart of FIG. 6, the service providing unit 124 receives the analysis result from the analysis unit 123, creates visualization data of the analysis result according to condition parameters such as sort criteria, and transmits the created visualization data to the personal computer 311 ( step S4). In the example shown in FIG. 4B, "whole (watched at least once)" is specified as the sorting criterion, so the service providing unit 124 determines the ranking of the series program SP based on the value of the total contact rate P2. , visualized data to be displayed in order of ranking, and transmitted to the personal computer 311 . When the personal computer 311 causes the monitor to display according to the received visualization data, the display of the analysis result shown in FIG. 4B is obtained (step S5). If the display of the analysis result when the sorting criteria is changed to "viewing of 70% or more" from the state of the display example of FIG. Change the sorting criteria of to "viewed more than 70%". When the server 120 executes the processes of steps S3 to S4, the display example of FIG. 5 is displayed on the monitor of the personal computer 311 in step S5.

Note that the display of the analysis results in FIG. 5 is obtained by simply changing the order of the rank values and the bar graphs in the display of the analysis results shown in FIG. 4B. , and the service providing unit 124 uses the stored analysis result data to create visualization data for displaying the analysis results with different sorting criteria, and displays in FIG. In this case, from YES of step S6, it returns to step S4 and performs a process.

As described above, according to the first embodiment, it is possible to provide a viewing history analysis method and a viewing history analysis system for obtaining the ratio and ranking of the floating layer and the fixed layer of series programs that are really liked and viewed.
In this embodiment, "whole area" is specified for the demographics, but "whole device", "M3", "M2", "M1", "T", "F1", "M3", "M2", "M1", "T", "F1", "F2","F3", or the ranking obtained by designating items related to family-viewing television may be displayed.

(Second embodiment)
In the present embodiment, an example of analyzing the viewing history, obtaining the contact rate for each viewing method as the analysis result, and displaying the ranking of the series programs will be described.
FIG. 8 is a diagram showing an example of analysis results displayed for each viewing method in this embodiment.

The display frame 81, the display frame 82, and the display frame 83 basically correspond to the display frame 41, the display frame 42, and the display frame 43 in FIG. 4B. The detailed explanation of is omitted, and the difference will be mainly explained.
The display frame 81 displays, for example, set values for analysis conditions and analysis result display methods. Display items include "demogram" and "sort criteria". The "sorting criteria" are further divided into viewing method and viewing count. In the display frame 81, an example is shown in which the "demogram" is set to "whole region", the "sorting criteria (viewing frequency)" is set to "more than 70% viewing", and the "sorting criteria (viewing method)" is set to "live". ing. Furthermore, in the display frame 81 as well as in the display frame 41, setting values can be specified for each item from a selection tab (not shown) or the like, thereby changing the display of analysis conditions and analysis results. For example, for "Sort criteria (viewing method)", you can specify "Live viewing", "Recorded playback viewing", and "Viewing reservation". ”, and “70% or more viewing” can be specified.

In the display frame 82, items such as "Rank", "program name", and "overall rank difference" are displayed in order of rank as the ranking of the series program obtained from the analysis result.
In the display frame 83, the contact rate (the average contact rate is displayed in the drawing), which is the device ratio for each series program obtained by analyzing the viewing history, is displayed for each viewing method. Examples of viewing methods include "live viewing", "recorded playback viewing", and "viewing reservation" (in the figure, "live", "playback", and "reservation" are displayed, respectively). For each viewing method, the device ratio of the viewing device for each of the analysis conditions "whole (viewed at least once)" and "viewed at least 70%" is displayed as a bar graph.

In the display example of the analysis result in FIG. 4B of the first embodiment, the bar graphs of "whole (watched at least once)" and "more than 70% watched" are superimposed to display the floating layer and the fixed layer for the series program. In addition to knowing the ratio of layers, the display example of the analysis results in FIG. As a result, for example, what percentage of the "live (live viewing)" layer that was being broadcast on SNS accounts for other viewing methods, and the number of "reservations (reserved viewing)" , the ratio of the viewing devices that were actually fixed and viewed, and the like.

FIG. 9 is a flow chart showing an example of the processing operation of the system for displaying analysis results for each viewing method in the same embodiment. The detailed description of the overlapping parts in FIG. 9 will be omitted, and the description will focus on the differences between the two.
There are two conceivable methods of obtaining the contact rate for each viewing method. The first method is to divide the viewing history data by viewing method and then obtain the contact rate for each viewing method. The second method is to obtain the total contact rate regardless of the viewing method, and then divide the total contact rate by viewing method to obtain the contact rate. In the second method, for example, the numerator of the total contact rate (the numerator of the device ratio in this embodiment, for example, the number of viewing devices whose viewing ratio is equal to or higher than a certain value) is divided by viewing method, and the contact rate for each viewing method is calculated. find the rate. The display example of the analysis result in FIG. 8 is based on the second calculation method, but the flowchart in FIG. 9 shows the processing procedure by the first calculation method.

When receiving a command or the like from the personal computer 311, the service providing unit 124 causes the personal computer 311 to display an analysis screen (step S1a). Here, the analysis screen is a screen for designating the display of analysis conditions and analysis results, as shown in the display frame 40 in FIG. 4A. The service providing unit 124 receives the condition parameters set on the analysis screen from the personal computer 311 (step S2a). The condition parameters in this embodiment include "evaluation criteria", "demograms", "sorting criteria (viewing method)", and "sorting criteria (viewing times)". Here, "Evaluation Criteria" is "Contact Rate by Viewing Method", "Demograph Attribute" is "Whole Area", "Sorting Criteria (Viewing Method)" is "Live", and "Sorting Criteria (Viewing Count)" is set. is "viewed by 70% or more". The service providing unit 124 causes the analyzing unit 123 to analyze the viewing history according to the received condition parameters (step S3a).

Step S3a will be described in detail. In the first embodiment, an example was shown in which the analysis is performed on the viewing device group R extracted from the viewing history for each series program regardless of the viewing style (step S31 in FIG. 7). In this embodiment, an example is shown in which analysis is performed on viewing device groups R1, R2, and R3 obtained by further dividing the viewing device group R by viewing methods for each series program. R1, R2, and R3 are a set of viewing devices r1 viewed in "live viewing", a set of viewing devices r2 viewed in "recording playback viewing", and a set of viewing devices r3 viewed in "reserved viewing", respectively. is. In addition, in the first embodiment, the device ratios P2 and P3 for the series program were obtained. calculate. Although P2 and P3 calculated regardless of the viewing method are referred to as the total contact rate, the device ratio calculated for each viewing method is simply referred to as the "contact rate." P21, P22, and P23 are the contact rate with the analysis condition of "all (watched at least once)" in "sorting criteria (viewing count)", and the contact rate of "live viewing" and "recording playback viewing" respectively. and the contact rate of "viewing reservation". In addition, P31, P32, and P33 are the contact rates with the analysis condition of "watching 70% or more" in the "sorting criteria (viewing count)". rate, the contact rate of "viewing reservation".

Analysis unit 123 obtains contact rates P21, P22, P23, P31, P32, and P33 for all series programs to be analyzed, and transmits analysis results including them to service providing unit 124. 124 determines the rank value of the series program based on the contact rate, creates visualization data of the analysis results according to condition parameters such as sort criteria, and transmits the created visualization data to the personal computer 311 (step S4a). For example, in the display frame 81 of FIG. 8, as a sorting criterion, "70% or more viewing" is designated as the "sorting criterion (viewing number)", and "live" is designated as the "sorting criterion (viewing method)". It is shown. In this case, the service providing unit 124 determines the rank of the series program based on the contact rate P31, creates visualization data for displaying the display frames 82 and 83 in rank order, and transmits the data to the personal computer 311.

When the personal computer 311 displays the received visualization data on the monitor, the display of the analysis result shown in FIG. 8 is obtained (step S5a). In the example of FIG. 8, since the series programs are ranked based on the contact rate P31, the bar graph for "viewing 70% or more" in the bar graph of "live" in the display frame 83 of FIG. 8 is displayed in descending order. there is

When the sorting criteria are changed from the display frame 81 (YES in step S6a), steps S2a to S5a are repeated, and the display of the analysis results is obtained according to the rank determined by the changed sorting criteria. In the present embodiment, any one of P21, P22, P23, P31, P32, and P33, which is the contact rate that is the analysis result of the combination of the selected "sorting criteria (viewing count)" and "sorting criteria (viewing method)," Series programs are ranked according to this value. Furthermore, although not shown in the example of FIG. 8, the total contact rates P2 and P3 may be calculated at the same time as the contact rate, and the total contact rates P2 and P3 may also be used for ranking.

As described above, according to the second embodiment, it is possible to provide a viewing history analysis method and a viewing history analysis system capable of analyzing the difference in viewing method between the floating layer and the fixed layer of a series program. For example, it is possible to analyze viewing tendencies of viewing devices that actually viewed programs, such as how many viewing devices viewed 70% or more of a series program were viewed by each viewing method.

(Third Embodiment)
FIG. 10 is a diagram showing an example of analysis results in which demograph attributes are displayed along the horizontal axis in the third embodiment.
A display frame 1001 displays the program name of the series program to be analyzed and a button to the left of the program name. For example, a series program corresponding to the program name on the right of the button can be selected by changing the display state of the button by clicking on the personal computer 311 or the like. In the figure, buttons for programs that have not been selected are indicated by white circles (black frames), and buttons for selected programs are indicated by black circles within the white circles.

In the example of the figure, only one button is displayed with a black circle, but it is also possible to display black circles on a plurality of buttons and select a plurality of programs corresponding to those buttons.
A display frame 1002 displays a coordinate plane composed of orthogonal vertical and horizontal axes. The vertical axis is a numeric axis for the value of "Rank", and the horizontal axis is an item axis with demograph attribute elements as items. On the left side of the display frame 1002, program names of series programs to be analyzed are displayed side by side. On the right side of the display frame 1002, a graph is displayed in which the Rank values of the series program determined for each demograph attribute item are connected for each series program. The order in which the program names of the series programs displayed on the left side of the display frame 1002 are arranged reflects the rank in the specific demograph attribute item. In the illustrated example, the program names of the series programs are arranged in the order of the rank (corresponding to the left end of the graph on the right side in the display frame 1002) determined for the demograph attribute "entire region". In addition, as shown in the example of the figure, the graph on the right side of the display frame 1002 is emphasized for the analysis result of the series program in which the buttons of the display frame 1001 are displayed with black circles, and the line is drawn more than the lines of other programs. is also displayed in bold, and the "Rank" value for each item of the demograph attribute is displayed. Also, it may be displayed in a color different from that of the lines of other programs. By emphasizing in this way, even when there are a large number of series programs to be analyzed, it is easy to understand the tendency of the demograph attributes. For example, in the example shown in the figure, it can be seen that "'series program SP16' is highly popular with the M1 layer."

In this way, by plotting the horizontal axis as demograph attribute items (gender age group, etc.) and displaying the rank values of each demograph attribute item for each series program by connecting lines, relative Rankings can be compared side by side, making it possible to evaluate series programs, such as whether the programs are popular with men or women, and whether they are popular with the young or old age group.

When the item name of the demographic attribute displayed on the horizontal axis is clicked, the program names of the series programs on the left side of the display frame 1002 are sorted in the order of rank for the clicked demographic attribute item. The graph on the right may be changed by pressing

FIG. 11 is a flow chart showing an example of the processing operation of the system for displaying the analysis result with the demograph attribute as the horizontal axis in the same embodiment.
When receiving a command or the like from the personal computer 311, the service providing unit 124 causes the personal computer 311 to display an analysis screen (step S21). Here, the analysis screen is a screen for designating the display of analysis conditions and analysis results, as shown in the display frame 40 of FIG. 4A. From the analysis screen displayed on the personal computer 311, a conditional parameter is set for displaying the demograph attribute on the horizontal axis. The condition parameters used in this embodiment include items such as "evaluation criteria", "number of views", and "demograph attributes". The "number of views" includes options such as "whole (viewed at least once)" and "70% or more viewed", and is a condition for displaying analysis results and a condition for analysis. "Demograph attribute" includes options of "whole region", "whole family", "M3", "M2", "M1", "T", "F1", "F2", and "F3", as well as all An option such as "all" from which options can be selected may be included, or a plurality of arbitrary "demograph attribute" items may be selected at the same time by providing check boxes or the like. Analysis is performed for all selected "demograph attribute" items. In the present embodiment, the "evaluation criteria" is "demograph attribute analysis of overall contact rate", the "viewing count" is "70% or more viewing", and the "demograph attribute" is "all". By specifying "all" for "demograph attribute" here, "whole region", "whole family", "M3", "M2", "M1", "T", "F1", "F2", All "F3" is selected. Note that the items, values, names, types, and the like of the condition parameters shown in the present embodiment are examples, and are not limited.

The service providing unit 124 receives the condition parameters set on the screen from the personal computer 311 (step S22). The service providing unit 124 causes the analysis unit 123 to analyze the viewing history according to the received condition parameters (step S23).
Step S23 will be described in detail. In the first embodiment, an example was shown in which the analysis is performed on the viewing device group R extracted from the viewing history for each series program regardless of the viewing style (step S31 in FIG. 7). In this embodiment, the viewing device group R is further divided into demograph attribute items for each series program, and analysis is performed on the viewing device group R_m for the demograph attribute item m. m indicates, for example, an index associated with each item of the demograph attribute. In addition, in the first embodiment, the device ratios P2 and P3 for the series program are obtained, but in the present embodiment, P2 and P3 are further divided into demograph attribute items P2_m and P3_m for calculation. P2_m and P3_m are the "total contact rate" for each demograph attribute item m.

When the analyzing unit 123 obtains P2_m and P3_m for all series programs to be analyzed and transmits the analysis result including P2_m and P3_m to the service providing unit 124, the service providing unit 124 obtains condition parameters such as sort criteria. Visualization data of the analysis result is created according to the above, and the created visualization data is transmitted to the personal computer 311 (step S24). When the personal computer 311 causes the monitor to display according to the received visualization data, the display of the analysis result shown in FIG. 10 is obtained (step S25). The order of the program names displayed along the vertical axis of the coordinate plane shown on the left side of the display frame 1002 in FIG. . FIG. 10 shows an example in which the program names are displayed in the order of the rank value of "whole region". For each program displayed on the left side of the display frame 1002, the Rank value for each demograph attribute item is connected in the order of the items on the horizontal axis.

Note that FIG. 10 shows an example in which the order of the series programs displayed on the left side of the display frame 1002 is sorted and displayed according to the Rank value for one of the items m of the demograph attribute. may be displayed randomly without sorting.

Further, for example, when one of the item names of item m of the demograph attribute on the horizontal axis displayed on the right side of the display frame 1002 in FIG. 10 is clicked and selected, the service providing unit items are used as sorting criteria to create visualization data in which the rank order of the analysis results is changed (YES in step S26, step S24). The created visualization data is sent to the personal computer 311, and the program names are displayed in the changed rank order on the left side of the display frame 1002. As in FIG. The items are connected in the order of the items on the horizontal axis, and a display of analysis results (not shown) is obtained.

As described above, according to the third embodiment, it is possible to provide a viewing history analysis method and a viewing history analysis system capable of analyzing viewing trends based on demographic attributes for each series program and differences in demographic attributes between series programs. can.
Furthermore, according to the present embodiment, when a program is evaluated for a specific group such as each gender and age group, a rank (order) that is not affected by the difference in the absolute amount of viewing history for each gender and age group is used. can be evaluated. For example, it is possible to analyze that "drama is F2, F3, animation is high in viewing such as M1, M2, etc.", and "even if it is high in a certain sex and age group, it is higher in other groups". Also, for example, who (what layer) should be targeted and advertised when distributing the program, and conversely, what elements will be received when creating a program for a specific layer such as the F1 layer? It can also be used for such analysis.

According to at least one embodiment described above, it is possible to provide a viewing history analysis method and a viewing history analysis system capable of accurately performing viewing analysis of a series program.
While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof. Furthermore, in each constituent element of the claims, even if the constituent element is divided and expressed, a plurality of constituent elements are expressed together, or a combination of these is expressed, it is within the scope of the present invention. Moreover, a plurality of embodiments may be combined, and examples configured by such combinations are also within the scope of the invention.

Also, in order to make the description clearer, the drawings may schematically show the width, thickness, shape, etc. of each part compared to the actual mode. In addition, when the claims are expressed as control logic, when expressed as a program including instructions for executing a computer, and when expressed as a computer-readable recording medium in which the instructions are written, the apparatus of the present invention is applied. be. Also, the names and terms used are not limited, and other expressions are included in the present invention as long as they have substantially the same content and the same meaning.

100 Broadcast signal transmitting device 101 Broadcasting station server 102 First basic function 120 Server 121 Identification management unit 122 Collection unit 123. Analyzing unit 124 Service providing unit 140 Broadcast signal receiving device

Claims (13)

Individually identifying a viewing history, which is a history of viewing the broadcast program, from each viewing device that receives a broadcast program including a series program composed of a plurality of broadcast talks transmitted by a broadcast wave and each viewing device a collection unit for collecting identification information;
an analysis unit that analyzes the viewing history and each of the identification information;
In the viewing history analysis method using a service providing unit that provides a service based on the analysis result of the analysis unit,
From the viewing history, calculating a viewing ratio, which is a ratio of the number of broadcast episodes watched to the total number of broadcast episodes of the series program for each viewing device,
Determining the rank of the series program according to the device ratio, which is the ratio of viewing devices whose viewing ratio satisfies a certain condition;
A viewing history analysis method for obtaining data for outputting data for visualization indicating at least the rank and the device ratio of the series program. The device ratio includes a first device ratio and a second device ratio,
The first device ratio is the ratio of the viewing devices whose viewing ratio is equal to or higher than a predetermined first threshold;
the second device percentage is the percentage of the viewing devices on which the broadcast episode was viewed at least once;
Obtaining the first device ratio and the second device ratio for each of the series programs, and obtaining visualization data for displaying the first device ratio and the second device ratio so that they can be compared and contrasted. Item 1. The viewing history analysis method according to item 1. It is determined that the broadcast is viewed by the viewing device when the viewing device has viewed the broadcast for a time equal to or longer than a preset second threshold within the broadcast time of the broadcast. 3. The viewing history analysis method according to claim 1 or 2. 3. The viewing history analysis according to claim 1, wherein visualization data is obtained according to the device ratio calculated for each viewing method of the viewing device including at least live, playback, and reservation. Method. 3. The viewing history analysis method according to claim 1, wherein the visualization data is obtained according to the apparatus ratio calculated for each demograph attribute. Identification for individually identifying a viewing history, which is a history of viewing the broadcast program, from each viewing device that receives a broadcast program including a series program composed of a plurality of broadcast talks transmitted by broadcast waves, and each of the viewing devices a collection unit for collecting numbers;
an analysis unit that analyzes the viewing history and the identification numbers;
A viewing history analysis system comprising a service providing unit that provides a service based on the analysis result of the analysis unit,
The analysis unit calculates a viewing ratio, which is a ratio of the number of broadcast episodes watched to the total number of broadcast episodes of the series program, for each viewing device from the viewing history,
The service providing unit determines the rank of the series program according to the device ratio, which is the ratio of the viewing devices that satisfy a predetermined condition for the viewing ratio, and data for visualization indicating at least the rank and the device ratio of the series program. A viewing history analysis system characterized by obtaining The device ratio includes a first device ratio and a second device ratio,
The analysis unit calculates, for each series program, the first device ratio, which is the ratio of the viewing devices whose viewing ratio is equal to or higher than a predetermined first threshold, and at least one broadcast talk. calculating the second device ratio, which is the ratio of the viewing devices that have been viewed;
7. The viewing history analysis system according to claim 6, wherein said service providing unit obtains visualization data for displaying said first device ratio and said second device ratio so that they can be compared and contrasted. The service providing unit displays the first device ratio and the second device ratio by superimposing the second device ratio on the bottom and the first device ratio on the top as a bar graph. 8. The viewing history analysis system according to claim 7, wherein data is obtained. The service providing unit causes the first device ratio and the second device ratio to be displayed in an overlapping manner as a bar graph, and according to either one of the first device ratio or the second device ratio, the series 9. The viewing history analysis system according to claim 8, wherein the rank of the program is determined, and the program names of the series programs and the bar graph are rearranged and displayed for each of the ranks. The analysis unit calculates the first device ratio and the second device ratio for each viewing method of the viewing device including at least live, playback, and reservation,
The service providing unit determines the rank of the series program according to one of the first device ratio and the second device ratio for each viewing method, and determines the program name for each of the ranks. 10. The viewing history analysis system according to claim 9, wherein said bar graph is displayed. The analysis unit calculates the device ratio for each demograph attribute element,
The service providing unit determines the rank of the series program according to the device ratio for each element of the demograph attribute, and in the first display area, the vertical axis is the numerical axis for the rank value, and the horizontal axis is the Obtaining visualization data for displaying a graph in which the rank values for the items of the demographic attribute are connected for each of the series programs on a coordinate plane having an item axis having the elements of the demographic attribute as items. The viewing history analysis system according to any one of claims 6 and 7. In the first display area, the program names of the series programs are displayed side by side along the vertical axis, and the item names of the demographic attributes are displayed side by side along the horizontal axis,
When one item name of the demograph attribute in the first display area is selected, the service providing unit selects the item name of the series program according to the rank determined for the selected demograph attribute item. 12. The viewing history analysis system according to claim 11, wherein the order of program names is determined. The service providing unit displays, next to the first display area, a second display area having buttons for selecting a specific series program from among the series programs, and the specific series program is selected by the button. 12. The viewing history analysis system of claim 11, which, when selected, causes the graph for the particular series to be highlighted.

Images