JP2010283505A - Audio visual data acquiring method, audio visual log acquiring device, and audio visual system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely and accurately obtain audio visual data for each user while preserving the privacy of the user. <P>SOLUTION: An audio visual system in which an audio visual log acquiring device is interposed between an audio visual device 10 and a remote control device 20 thereof, includes the operation log recording step of recording the operation history of the remote control device into the remote control device as an operation log per user in correspondence with information on a time at which the operation has been performed, the audio visual log recording step of recording audio visual data as an audio visual long into an audio visual log acquiring device in correspondence with information on a time at which it has been viewed and listened, the collating step of collating the time information in the operation log recorded at the operation log recording step with the time information in the audio visual log recorded at the audio visual recording step, and the audio visual data acquiring step of acquiring a user corresponding to the time information from the operation log based on the time information so collated at the collating step and acquiring the audio visual data corresponding to the time information from the audio visual log. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a viewing data acquisition method, a viewing log acquisition device, and a viewing system that can acquire viewing data (data indicating viewing contents) for each user such as a television.

  Conventionally, a technique for acquiring viewing data for each user such as a television has been proposed. For example, Patent Document 1 discloses using a user profile such as age, gender, and preference in order to create an effective digest using the audience rating. There is also known a method of holding a viewing log of content designated from a remote controller in the remote controller.

Japanese Patent No. 3938034

  However, according to the prior art disclosed in Patent Document 1, when there is a family, it is possible to acquire only the viewing data of the entire family, not the viewing data of each user. That is, when a plurality of users use one television, there is a problem that viewing data cannot be acquired for each individual user.

  In addition, according to the conventional technology that keeps a viewing log of content designated from the remote control in the remote control, if the signal from the remote control does not reach the TV, the content can be viewed even if the content is not actually displayed on the TV. It will be retained as data. Furthermore, since the viewing data can be information related to personal privacy, in this case, there is a problem that if the remote control is lost, the privacy information leaks.

  In view of the above-described conventional technology, the present invention provides a viewing data acquisition method, a viewing log acquisition device, and a viewing system that can reliably and accurately acquire viewing data for each user such as a television while protecting privacy. The purpose is to provide.

  In order to achieve the above object, according to the first aspect of the present invention, in a viewing system in which a viewing log acquisition device is interposed between a viewing device and its remote control, viewing data indicating viewing content of the viewing device is provided for each user. An operation log recording step of recording an operation log of the remote controller as an operation log in the remote controller for each user in association with time information when the operation is performed, and viewing the viewing data. A viewing log recording step for recording the viewing log in the viewing log acquisition apparatus in association with the time information, and the time information in the operation log recorded in the operation log recording step and the viewing log recording step. A collation step for collating time information in the viewing log, and the time based on the time information collated in the collation step A viewing data acquisition step of acquiring the viewing data for each user by acquiring the user corresponding to the report from the operation log and acquiring the viewing data corresponding to the time information from the viewing log. Is the gist.

  In order to achieve the above object, the invention according to the second aspect is a method for acquiring viewing data indicating viewing contents of the viewing device for each user in a viewing system including the viewing device and a remote controller thereof. An operation log recording step of associating the operation history of the remote control with the time information when the operation was performed and recording as an operation log in the remote control for each user, and associating the viewing data with the time information of the viewing A viewing log recording step for recording as a viewing log in the viewing device; time information in the operation log recorded in the operation log recording step; and time information in the viewing log recorded in the viewing log recording step. A collation step for collation and a user corresponding to the time information based on the time information collated in the collation step. By obtaining the viewing data corresponding to the time information acquires from the log from the viewing log, and summarized in that and a viewing data obtaining step of obtaining the viewing data for each user.

  The invention according to the third aspect is the invention according to the first or second aspect, further comprising an external device in which the viewing data for each user acquired in the viewing data acquisition step is connected to the viewing system through a network. The gist of the present invention is that it includes a transfer step of transferring to.

  In the invention according to the fourth aspect, in the invention according to the first or second aspect, the collation step specifies the operation log recorded in such a manner that the viewing content cannot be specified, and the user. The gist is to clarify the correspondence between the viewing content and the user by collating the viewing log recorded in such a manner that the viewing cannot be performed.

The invention according to a fifth aspect is the invention according to the first or second aspect, wherein in the collating step, the difference between the time managed in the remote control and the time managed in the viewing log acquisition device is calculated. The invention according to the sixth aspect is characterized in that the time information in the operation log and the time information in the viewing log are collated in consideration of an allowable time set in advance to allow Alternatively, in the invention according to the second aspect, in the checking step, the actual channel transition in the viewing log is converted into a relative channel transition, or the relative channel transition in the operation log is actually The gist is to check the time information in the operation log and the time information in the viewing log after conversion into the channel transition.

  In order to achieve the above object, an invention according to a seventh aspect is a viewing log acquisition device provided between a viewing device and a remote controller thereof, and the operation history of the remote controller is a time when the operation is performed. An operation log receiving unit that receives, from the remote controller, an operation log recorded for each user in association with information, and viewing data indicating the viewing content of the viewing device is recorded as a viewing log in association with the viewing time information. A viewing log recording unit, a collation unit that collates time information in the operation log received by the operation log receiving unit and time information in the viewing log recorded in the viewing log recording step, and the collation unit Based on the collated time information, the user corresponding to the time information is acquired from the operation log, and the viewing data corresponding to the time information is obtained from the viewing log. By Tokusuru, and summarized in that and a viewing data acquisition unit that acquires the viewing data for each user.

  In order to achieve the above object, the invention according to the eighth aspect is a viewing system in which a viewing log acquisition device is interposed between a viewing device and a remote controller thereof, and the operation history of the remote controller is controlled by the operation history. An operation log recording unit in the remote controller for recording as an operation log for each user in association with the received time information, and viewing data indicating the viewing content of the viewing device in association with the viewing time information The viewing log recording unit in the viewing log acquisition device, the time information in the operation log recorded by the operation log recording unit, and the time information in the viewing log recorded by the viewing log recording unit are collated And acquiring a user corresponding to the time information from the operation log based on the time information collated by the collation unit in the viewing log acquisition device and the collation unit By obtaining the viewing data corresponding to the time information from the viewing logs, and summarized in that and a viewing data acquisition portion of the inner viewing log acquisition unit that acquires the viewing data for each user.

  ADVANTAGE OF THE INVENTION According to this invention, the viewing data acquisition method, viewing log acquisition apparatus, and viewing system which can acquire viewing data for every users, such as a television, reliably and correctly, protecting privacy can be provided.

It is a block diagram of the television system in the 1st Embodiment of this invention. It is an internal block diagram of remote control signal DB in the 1st Embodiment of this invention. It is an internal block diagram of television signal DB in the 1st Embodiment of this invention. It is explanatory drawing of the collation method of the log in the 1st Embodiment of this invention. It is a block diagram of the other television system in the 1st Embodiment of this invention. It is a figure which shows operation | movement of the television system in the 1st Embodiment of this invention. It is a figure which shows operation | movement of the television system in the 1st Embodiment of this invention. It is an example of the button group in the 1st Embodiment of this invention. It is an example of the operation log in the 1st Embodiment of this invention. It is a block diagram of the television system in the 2nd Embodiment of this invention. It is explanatory drawing of the collation method of the log in the 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<First Embodiment>
FIG. 1 is a configuration diagram of a television system according to the first embodiment of the present invention. This television system is an example of a viewing system according to the present invention. As shown in FIG. 1, a television receiver (hereinafter simply referred to as “TV”) 10, a remote control 20 of the television 10, and a viewing log acquisition device 30. And. The television 10 is an example of a viewing device according to the present invention, and is a device for viewing a broadcast wave program or an on-demand video. Here, it is assumed that one television 10 is used by a plurality of users.

  Hereinafter, the configuration of the remote controller 20 will be described in detail.

  The remote controller 20 includes a button group 21, a time management unit 22, an operation detection unit 23, an operation log holding unit 24, and a signal transmission unit 25. The button group 21 includes numeric buttons and + −buttons. The number buttons are buttons for directly changing the power source and channel of the television 10. The + − button is a button for changing the current channel to a channel that is adjacent to the current channel. The time management unit 22 is a clock or the like that manages the current time. When the button of the remote controller 20 is operated, the operation detection unit 23 detects the content and notifies the signal sending unit 25 and the operation log holding unit 24, and at the same time acquires the current time from the time management unit 22 and acquires the operation log. It is passed to the holding unit 24. The signal transmission unit 25 transmits a remote control signal corresponding to the content notified from the operation detection unit 23. The operation log holding unit 24 holds (records) the content notified from the operation detection unit 23 as an operation log together with the current time.

  Next, the configuration of the viewing log acquisition device 30 will be described in detail.

  In general, there is no mechanism for holding the content received from the remote controller 20 in the television 10. Alternatively, even if such a mechanism is prepared, the content received from the remote controller 20 cannot be easily retrieved from the television 10. Therefore, in the present invention, the viewing log acquisition device 30 is provided between the television 10 and the remote controller 20 as a mechanism for once acquiring a signal transmitted from the remote controller 20 and transmitting the content to the television 10. Such a mechanism is effective for correctly grasping the channel displayed on the television 10 even if the operation is + or − in addition to holding the channel displayed on the television 10 as a viewing log. .

  The viewing log acquisition device 30 includes a remote control signal receiver 31, a remote control signal analysis unit 32, a remote control signal DB 33, a remote control signal conversion unit 34, a television signal DB 35, a channel management unit 36, and a remote control signal transmitter 37. A viewing log holding unit 38, a time management unit 39, a log matching unit 40, a channel log holding unit (viewing data acquisition unit) 41, and a matching permission determination unit 42. The remote control signal receiver 31 receives a signal from the remote control 20 and passes it to the remote control signal analysis unit 32. As shown in FIG. 2, the remote control signal DB 33 associates the remote control signal with the operation command. The remote control signal analysis unit 32 refers to the remote control signal DB 33, analyzes the remote control signal passed from the remote control signal receiver 31, and generates specific operation commands (channel numbers, +,-, power) to generate the remote control. The signal is transferred to the signal converter 34. As shown in FIG. 3, the TV signal DB 35 is associated with operation commands and TV remote control signals. The remote control signal conversion unit 34 refers to the television signal DB 35 in accordance with the operation command passed from the remote control signal analysis unit 32 and converts the operation content into a television remote control signal to be operated. At this time, if the operation command passed from the remote control signal analysis unit 32 is a + or − operation command, the remote control signal conversion unit 34 acquires the current channel position of the operation target television from the channel management unit 36. . Then, the acquired channel position is converted to a channel shifted by +1 or -1, and the channel corresponding to the numeric button is directly set. The remote control signal transmission unit 43 transmits the television remote control signal converted by the remote control signal conversion unit 34 to the operation target television 10 via the remote control signal transmitter 37, and at the same time, transmits the transmitted television remote control signal to the viewing log holding unit. Pass to 38. The viewing log holding unit 38 holds the TV remote control signal passed from the remote control signal sending unit 43 as a viewing log together with the current time acquired from the time management unit 39. Instead of the television remote control signal passed from the remote control signal sending unit 43, the content analyzed by the remote control signal analysis unit 32 may be held as a viewing log. As a result, when the operation target television 10 receives the signal transmitted from the remote control signal transmission unit 43 of the viewing log acquisition device 30, it can perform the same behavior as when received from the remote control 20, and A viewing log can be acquired.

  The communication method between the remote controller 20 and the viewing log acquisition device 30 is not particularly limited as long as it does not affect the television 10. Further, it is assumed that no signal transmission is missed between the viewing log acquisition device 30 and the television 10, and the television 10 displays the content as held in the viewing log of the viewing log acquisition device 30. To do.

  When the collation permission determination unit 42 determines that the user has been permitted to collate, the log collation unit (operation log reception unit) 40 acquires an operation log from the operation log holding unit 24 of the remote controller 20. The operation log acquisition method from the remote controller 20 may be a wired method such as a USB cable, a wireless method such as wireless LAN or Bluetooth, or a mediating method using a memory card or USB memory. I do not care. The user's verification permission may be instructed from the remote controller 20 or from the viewing log acquisition device 30. Thereafter, the log collating unit 40 collates the time information in the acquired operation log with the time information in the viewing log held in the viewing log holding unit 38 (hereinafter referred to as “collating operation log and viewing log”). "). Then, a channel log (viewing data) to be described later is generated based on the result of this collation, and the generated channel log is output to the channel log holding unit (viewing data acquisition unit) 41 and held.

  FIG. 4 is a diagram for explaining a log collating method. Here, the remote control 20 for the user A is called “remote control A”, and the remote control 20 for the user B is called “remote control B”. Log A is an operation log of the remote control A, log B is an operation log of the remote control B, and log C is a viewing log acquired by the method described above.

  First, paying attention to “power ON” of the log C, an event around “10:00: 00” that is the time is searched from the log A. Here, “before and after” of “10:00:00” is a value set in advance, and means a time during which a difference between the clock of the remote controller 20 and the clock of the viewing log acquisition device 30 is allowed. For example, when the allowable time is set to 2 seconds, “10:00:01 power ON” is retrieved from the log A as an event corresponding to “power ON” of the log C. Correspondence is similarly performed for each event such as channel switching. In order to simplify the association of the event of switching the channel with + or −, the actual channel transition in the log C is converted into the relative channel transition state in advance, for example, as in the log C2. Also good. Conversely, the same effect can be obtained by adopting a method in which relative channel transitions in the log A and the log B are converted in advance into actual channel transition states.

  In the example of FIG. 4, the log C2 and the log A are compared. In this case, if the log A is incremented by +1 second, it matches the log C2, so that the log A2 can be generated as a channel log by the remote controller A. Next, the log A2 is removed from the log C, and a log C3 that is a log other than the remote control A is generated. As a result, the log B2 can be generated as the channel log of the remote controller B because the log B is matched with the log C3 if the log B is -2 seconds. Finally, the log A2 can be used as the operation log of the remote controller A, the log B2 can be used as the operation log of the remote controller B, and the channel log D can be generated in which each event is distinguished for each user A and B. The channel log D generated in this way can also be transferred to an external server 60 or the like through the network 50 as shown in FIG. If the transfer is performed at the time of completion of collation, the channel log D can be used quickly. However, a method of transferring according to whether the network 50 can be connected, permission of transfer by the user, a request from the server 60, or the like is also conceivable.

  Next, the operation of the television system in the first embodiment of the present invention will be described.

  FIG. 6 is a flowchart showing an operation in which the television system according to the first embodiment of the present invention holds an operation log and a viewing log. As shown in FIG. 6, when a button operation is detected on the remote controller 20 side (S1), a remote control signal is sent from the remote controller 20 to the viewing log acquisition device 30 (S2). At the same time, the current time is acquired and an operation log is held in the remote controller 20 (S3). When receiving the remote control signal (S4), the viewing log acquisition device 30 analyzes the received remote control signal and generates an operation command (S5). If the operation command is a channel + or-operation command (YES in S6), a channel shifted by +1 or -1 from the current channel position is set (S7), and the operation command is a TV remote control. It is converted into a signal (S9). On the other hand, if the operation command is not a channel + or-operation command (NO in S6), the operation command directly designated on the remote controller 20 is set (S8), and the operation command is converted into a TV remote control signal. (S9). When the TV remote control signal is sent to the TV 10 (S10), the current time is acquired and the viewing log is held in the viewing log acquisition device 30 (S11). The above operation is repeated until the button operation is completed (S12 → S1).

  FIG. 7 is a flowchart showing an operation in which the television system according to the first embodiment of the present invention collates the operation log and the viewing log. As shown in FIG. 7, first, when an unprocessed operation log exists (YES in S21), one of the unprocessed operation logs is selected and a corresponding user ID (described later) is acquired (S22). ). Next, the actual channel transition in the viewing log is converted into a relative channel transition (S23), and one event of remote control operation is extracted from the viewing log (S24). Then, the time of the extracted event is acquired (S25), and the event corresponding to the acquired event time ± allowable time is extracted from the operation log (S26). If there are multiple events, the one with the oldest time is adopted (S27). Then, “viewing log time, user ID, viewing log channel” is output to the channel log (S28). Such an operation is repeated for all events in the selected operation log (S29 → S24). On the other hand, when there is no unprocessed operation log (NO in S21), the channel logs are arranged in time series, the time difference between events is given as viewing time (S30), and the channel log is output (S31).

  As described above, according to the present invention, viewing data can be acquired for each user such as a television set reliably and accurately while protecting privacy. That is, since the user who actually operated the remote controller 20 can be associated with the content actually displayed on the television 10, the content that the user has intentionally switched can be acquired as viewing data of the user. In addition, since the viewing log is held in the viewing log acquisition device 30 that does not miss signal transmission with the television 10, only the content actually displayed on the television 10 can be acquired as viewing data. Furthermore, the remote controller 20 holds an operation log in such a manner that the content cannot be specified, and the user and the content are associated with each other only after checking the viewing log on the TV 10 side, so that privacy is protected as much as possible. In addition, stronger protection is possible by requiring user confirmation at the time of verification.

  Although a method for generating a channel log using two remote controllers 20 has been described here, the present invention is not limited to this. That is, if the same processing is continued, it is possible to cope with the case where three or more remote controllers 20 are used.

  In addition, here, for convenience of explanation, the time is displayed in each log as a whole, but it is sufficient if the time is only at the place where the event exists. Moreover, although the time is displayed in seconds, it is desirable that the time be in units of tens to hundreds of milliseconds to ensure accuracy.

  Further, as a result of associating the logs A2 and B2, an event may remain in the viewing log of the log C. Such an event can be ignored because it is highly likely that the event is not an operation of the remote controllers A and B.

  Further, although it is assumed that the remote controller 20 is possessed by each user, it is possible to adopt a method of switching and using one remote controller 20 for each user. For example, as shown in FIG. 8, a button B1 for switching the remote controller 20 for the user A, a button B2 for switching the user B, and a button B3 for switching the user C may be included in the button group 21. In this case, individual operation logs A, B, and C corresponding to the users A, B, and C may be held, or a plurality of users may be combined into one operation log as shown in FIG. May be held. Even in the latter case, it is possible to identify a plurality of users by adopting a configuration in which a user ID is included in the operation log. In other words, whether individual operation logs A, B, and C are held or a plurality of users are held together and one operation log is held is the same in terms of holding an operation log for each user. . Note that when a single operation log is held together for a plurality of users, there is an advantage that the collation process can be completed in one time.

<Second Embodiment>
In the first embodiment, the configuration (FIG. 1) in the case where the viewing log acquisition device and the television exist separately has been described, but a configuration in which the viewing log acquisition device and the television are integrated is adopted. Is also possible. Hereinafter, the configuration of the television system according to the second embodiment of the present invention will be described focusing on differences from the first embodiment.

  FIG. 10 is a configuration diagram of a television system according to the second embodiment of the present invention. This television system includes a television 10 and a remote controller 20 as shown in FIG. The television 10 includes a television main unit 11, a remote control signal receiver 31, a remote control signal analysis unit 32, a remote control signal DB 33, a viewing log holding unit 38, a time management unit 39, a log verification unit 40, a channel log A holding unit (viewing data acquisition unit) 41 and a verification permission determination unit 42 are provided. In the present embodiment, since the viewing log acquisition device 30 and the television 10 are integrated, the remote control signal converter 34 for sending a signal toward the television 10 as in the first embodiment. The remote control signal transmitter 43 and the remote control signal transmitter 37 are not necessary. Of course, depending on the format of signals handled in the television main section 11, these sections 34, 43, and 37 may be provided in the television main section 11. Each component other than the television main unit 11 is basically the same as each component of the viewing log acquisition device 30 in the first embodiment. However, the content analyzed by the remote control signal analysis unit 32 is held in the viewing log holding unit 38 as a viewing log.

  FIG. 11 is a diagram for explaining a log collating method. Here, a simpler collation method will be described on the premise that time synchronization is established between the remote controls A and B and the television 10. This collation method can also be employed in the first embodiment in which the viewing log acquisition device and the television are separately present.

  First, the remote controller A has “1000” as a unique user ID, and the user ID “1000” is output to the operation log A together with the operation event. “KEY_POWER” means power ON or OFF, “KEY_UP” means channel +, and “KEY_DOWN” means channel −. Similarly, the remote controller B has “1001” as a unique user ID, and the user ID “1001” is output to the operation log B together with the operation event. The operation log AB can be generated by combining the operation log A and the operation log B in time series.

  On the other hand, the viewing log C is acquired by the same method as in the first embodiment. Here, since it is a premise that the operation log AB and the viewing log C are synchronized in time, the channel log D can be easily generated by comparing the operation log AB and the viewing log C in time series. it can. “ON / 8ch” included in the viewing log C means that the power was turned on and the last channel that was viewed last time was output as a log. The time “00:54”, “00:03”, etc. in the last column of the channel log D is the viewing time of the channel. The viewing time can be calculated from the difference between the viewing time of the event and the viewing time of the immediately following event.

  Here, for the following operations included in the operation log A, there is no event corresponding to the viewing log C. This means that the signal from the remote controller A did not reach the television 10 correctly and the channel was not changed. Since such an event is not output to the channel log D, the channel log D has contents in line with the actual situation.

2009/03/10 13:44:26, 1000, KEY_UP
Further, there is a case where the button of the remote controller 20 is accidentally pressed when the TV 10 is turned off, but content cannot be viewed while the TV 10 is turned off. Therefore, if the configuration in which all the events during the power-off state are deleted from the operation log before the log collation unit 40 collates the logs, the collation can be simplified. For example, since the event at the time “2009/03/10 14:30:00” in the viewing log C is “OFF”, it is determined that the following operations included in the operation log B are operations when the power is turned off. Can do.

2009/03/10 20:00:50, 1001, KEY_UP
2009/03/10 20:00:51, 1001, KEY_UP
2009/03/10 20:00:52, 1001, KEY_UP
The operation of the television system according to the second embodiment of the present invention is basically the same as that of the first embodiment. That is, the operation of the television system according to the present embodiment for holding the operation log and the viewing log is that the operation command is transmitted to the television main unit 11 instead of the television remote control signal being transmitted to the television 10. This is the same as the first embodiment. The operation in which the television system in this embodiment collates the operation log and the viewing log is the same as that in the first embodiment except that the collation is performed in the television 10 instead of the viewing log acquisition device 30. is there.

  As described above, according to the second embodiment in which the viewing log acquisition device and the television are integrated, as in the first embodiment, a user such as a television is surely and accurately protected while protecting the privacy. Viewing data can be acquired every time.

10 ... TV (viewing device)
DESCRIPTION OF SYMBOLS 11 ... Television main part 20 ... Remote control 21 ... Button group 22 ... Time management part 23 ... Operation detection part 24 ... Operation log holding part 25 ... Signal transmission part 30 ... Viewing log acquisition apparatus 31 ... Remote control signal receiver 32 ... Remote control signal analysis Part 33 ... Remote control signal DB
34 ... Remote control signal converter 35 ... TV signal DB
36 ... Channel management unit 37 ... Remote control signal transmitter 38 ... Viewing log holding unit 39 ... Time management unit 40 ... Log verification unit 41 ... Channel log holding unit (viewing data acquisition unit)
42 ... collation permission determination unit 43 ... remote control signal transmission unit

Claims (8)

In a viewing system in which a viewing log acquisition device is interposed between a viewing device and a remote control thereof, a method for obtaining viewing data indicating viewing content of the viewing device for each user,
An operation log recording step of recording an operation log of the remote controller as an operation log in the remote controller for each user in association with time information when the operation was performed;
A viewing log recording step of recording the viewing data as a viewing log in the viewing log acquisition device in association with time information of the viewing;
A collation step for collating time information in the operation log recorded in the operation log recording step with time information in the viewing log recorded in the viewing log recording step;
Based on the time information collated in the collation step, the user corresponding to the time information is obtained from the operation log, and the viewing data corresponding to the time information is obtained from the viewing log, thereby obtaining the viewing data. A viewing data acquisition method comprising: a viewing data acquisition step for each user. In a viewing system including a viewing device and a remote control thereof, a method of obtaining viewing data indicating viewing content of the viewing device for each user,
An operation log recording step of recording an operation log of the remote controller as an operation log in the remote controller for each user in association with time information when the operation was performed;
A viewing log recording step of recording the viewing data as a viewing log in the viewing device in association with time information when the viewing was performed;
A collation step for collating time information in the operation log recorded in the operation log recording step with time information in the viewing log recorded in the viewing log recording step;
Based on the time information collated in the collation step, the user corresponding to the time information is obtained from the operation log, and the viewing data corresponding to the time information is obtained from the viewing log, thereby obtaining the viewing data. A viewing data acquisition method comprising: a viewing data acquisition step for each user.   3. The viewing method according to claim 1, further comprising a transfer step of transferring the viewing data for each user acquired in the viewing data acquisition step to an external device connected to the viewing system through a network. Data acquisition method. In the collation step, by comparing the operation log recorded in a mode in which the viewing content cannot be specified and the viewing log recorded in a mode in which a user cannot be specified, The viewing data acquisition method according to claim 1 or 2, wherein a correspondence relationship with a user is clarified.   In the collation step, a time in the operation log in consideration of an allowable time set in advance to allow a difference between the time managed in the remote control and the time managed in the viewing log acquisition device 3. The viewing data acquisition method according to claim 1, wherein the information is collated with time information in the viewing log.   In the checking step, after converting an actual channel transition in the viewing log into a relative channel transition, or after converting a relative channel transition in the operation log into an actual channel transition, 3. The viewing data acquisition method according to claim 1, wherein time information in the operation log is collated with time information in the viewing log. A viewing log acquisition device provided between the viewing device and its remote control,
An operation log receiving unit that receives, from the remote control, an operation log recorded for each user by associating the operation history of the remote control with time information when the operation was performed;
A viewing log recording unit that records viewing data indicating the viewing content of the viewing device as a viewing log in association with time information of the viewing;
A collating unit that collates time information in the operation log received by the operation log receiving unit with time information in the viewing log recorded in the viewing log recording step;
Based on the time information collated by the collation unit, the user corresponding to the time information is acquired from the operation log and the viewing data corresponding to the time information is acquired from the viewing log. A viewing log acquisition apparatus comprising: a viewing data acquisition unit that acquires each user. A viewing system in which a viewing log acquisition device is interposed between the viewing device and its remote control,
An operation log recording unit in the remote control that records the operation history of the remote control as an operation log for each user in association with the time information when the operation was performed;
A viewing log recording unit in the viewing log acquisition device that records viewing data indicating the viewing content of the viewing device as a viewing log in association with time information of the viewing;
A collation unit in the viewing log acquisition device that collates time information in the operation log recorded by the operation log recording unit with time information in the viewing log recorded by the viewing log recording unit;
Based on the time information collated by the collation unit, the user corresponding to the time information is acquired from the operation log and the viewing data corresponding to the time information is acquired from the viewing log. A viewing system comprising: a viewing data acquisition unit in the viewing log acquisition device that acquires for each user.

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