JP5305763B2 - Digital broadcast receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital broadcast receiver capable of notifying a user of the start of a program coinciding with the user's preference without being conscious of processing about storage of his/her viewing tendency. <P>SOLUTION: A storing condition for defining the viewing tendency of programs is set from operation inputs about programs, program information and viewing time, a value obtained by performing weighting corresponding to the number of times of appearances of coincident storing condition to the number of times of coinciding with the storing condition for each program is calculated as a preference index, program information is associated with a preference index for each program to be stored in a memory 11, and when a start time of the program stored in the memory 11 comes, a notification of starting the program corresponding to the preference index is executed by at least one of a screen notification of a display 9a and a sound notification of a speaker 8a. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a digital broadcast receiver, and more particularly to a digital broadcast receiver that notifies information related to a user-preferred program that starts broadcasting as a back program while viewing the broadcast program.

  In a conventional digital broadcast receiver, if a user actively performs a program reservation operation or the like, it is possible to know the user's favorite program start, but each time the user checks the start date and time of the favorite program in advance. I had to make a reservation on my own.

  On the other hand, for example, in the television receiver described in Patent Document 1, the program name, the viewing start time, and the viewing end time are accumulated as the viewing history of the user, and the currently viewed program is viewed in the past. If it is different from the program, the user is notified that a program different from the past is being viewed. In this way, it is possible to notify the user of a warning so that the user can surely view the channel by switching the channel without specifying the viewing reservation in advance.

  Further, in Patent Document 2, by setting the program genre that the user desires to watch, based on the program information relating to the program genre extracted from the broadcast signal, the start of the program of the genre desired to be watched is detected, In response to this detection, the display on the display notifies that a desired type of program is started. Thereby, a user can grasp | ascertain the start of the program of the program genre which viewing is desired by simple operation.

JP 2005-39681 A JP 2004-32230 A

  In a conventional digital broadcast receiver, in order to view a user-preferred program or record the program, the user has to check and set the start date and time of the desired program each time. For this reason, the user must check the start date and time of a desired program in advance, and may miss the program or forget to record.

  According to Patent Document 1 and Patent Document 2, a program can be started and recorded by a simple prior operation. However, in order to notify the start of a desired program, also in Patent Document 1 and Patent Document 2, information (program search condition) for specifying the program in consideration of a program that suits the user's preference. Must be set in advance. In addition, as in Patent Document 1 and Patent Document 2, it may not be possible to specify a user's favorite program simply by setting a program that the user has watched in the past or a specific program genre as a program selection condition.

  In addition, in an in-vehicle digital broadcast receiver, as a safety consideration, the display of television images is stopped while the vehicle is running, and viewing of television images and menu operations cannot be performed. Thus, a notification method that allows the user to recognize that a user-preferred program has started even when the display of television images is stopped or the digital broadcast receiver itself is inactive is desired.

  Furthermore, when the digital broadcast receiver is used by a plurality of people, the preferences of all the people do not always match. In this way, when there are a plurality of users, in Patent Document 1 and Patent Document 2, an unintended program notification may be given to a user who is viewing, or the user's preference may be known to others. There's a problem.

  The present invention has been made to solve the above-described problems, and by automatically registering a program that matches a user's program viewing tendency, the user is not conscious of processing related to viewing tendency accumulation. , It is possible to notify the start of a program that matches the user's preference, and it is possible to notify the start of a program even when the setting is made for each user considering the case where there are multiple users or the video is inactive The purpose is to obtain a digital broadcast receiver.

A digital broadcast receiver according to the present invention includes a receiver that receives a digital broadcast from a broadcast station, a demodulator that demodulates the digital broadcast, and a reproduction that reproduces a video signal and an audio signal from the demodulated signal demodulated by the demodulator. A digital broadcast receiver comprising: a display unit for displaying the video signal on a screen; an audio output unit for outputting the audio signal as audio; and an operation input receiving unit for receiving an operation input from outside. Whether or not any of a plurality of programs selected and received within a predetermined determination period is a program reserved for recording by an operation input via the operation input receiving unit, is reserved for recording and viewed. Whether the program is a program from which the broadcast contents of the electronic program guide have been read, whether the program has been re-selected within a predetermined time, the program currently being viewed and the program genre Same In it whether, and predetermined viewing time to determine the constant, respectively it whether the continued program a satisfying program individual the determination to the total number of programs that meet one of the conditions of the previous SL determination calculates a number of ratios as the appearance ratio of each condition of the determination, the determined number of times that meet the condition of the determination for each program received by the reception unit within said predetermined determination period, the number of A preference analysis unit for calculating a value obtained by multiplying the appearance ratio of the determination condition corresponding to the program as a preference index for each program, and associating the program information of the program for which the preference index has been calculated with the preference index of the program And at least one of a screen notification of the display unit and an audio notification of the audio output unit for a program determined to be the next time based on the program information stored in the storage unit. On one side It, and a schedule control unit for executing a start notification of the program in order the preference index is greater.

  According to the present invention, the storage condition that defines the viewing tendency of the program is set from the operation input related to the program, the program information, and the viewing time, and the matching storage condition for the number of matches with the storage condition for each program is set. When the weighting value corresponding to the number of appearances is calculated as a preference index, the program information and the preference index for each program are stored in the storage unit in association with each other, and when the program start time stored in the storage unit is reached, the display unit The start notification of the program corresponding to the preference index is executed by at least one of the screen notification and the audio notification of the audio output unit. In this way, a program that matches the program viewing tendency of the user using the storage condition that defines the viewing tendency of the program from the operation input, program information, and viewing time of the program, without the user being conscious of the processing related to the accumulation of the viewing tendency. By automatically registering, it is possible to notify the start of a program that matches the user preference.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration of a digital broadcast receiver according to Embodiment 1 of the present invention, and shows a case where the present invention is applied to an in-vehicle digital broadcast receiver. In FIG. 1, a digital broadcast radio wave is received by an antenna (reception unit) 1, and a received signal is input to a tuner 2. After the frequency component of the channel to be selected is extracted by the tuner (receiver) 2, it is demodulated into a digital signal by an OFDM (Orthogonal Frequency Division Multiplexing) demodulator (demodulator) 3, and as a transport stream (demodulated signal) DEMUX 4 To enter.

  The DEMUX 4 separates the input transport stream into an audio stream, a video stream, and SI (Service Information) information (program information), and an audio decoder (playback unit) 5, a video decoder (playback unit) 6, and a control unit 7, respectively. Output to. The audio stream is decoded by the audio decoder 5 and output as audio from the speaker (audio output unit) 8 a via the audio control unit 8. The video stream is decoded by the video decoder 6 and is output as a video on the display screen of the display (display unit) 9 a via the video control unit 9.

  The control unit 7 extracts and processes information about the program from the input SI information, and then a banner screen, a message screen, and the like are created by the GUI (Graphical User Interface) unit 10 and synthesized with the video by the video control unit 9. . The SI information input to the control unit 7 is stored in the memory (storage unit) 11. Further, remote control input by a user operation is received by a remote control receiving unit (operation input receiving unit) 12 and interpreted by the control unit 7 to control the operation of the entire receiver.

  In addition, the vehicle information acquisition unit 13 includes, for example, a vehicle speed sensor and acquires information on whether or not the vehicle on which the digital broadcast receiver is mounted is traveling and outputs the information to the control unit 7. In notifying the start of the user-preferred program, the control unit 7 selects a notification method (screen notification or voice notification) in consideration of the vehicle-related information input from the vehicle information acquisition unit 13.

  FIG. 2 is a block diagram showing a connection relationship between the internal configuration of the control unit in FIG. 1 and its peripheral configuration. As shown in FIG. 2, the control unit 7 includes an SI information control unit 14, a user preference analysis unit (preference analysis unit) 15, a schedule control unit 16, and a time management unit 17. The SI information control unit 14 is a component that controls processing for handling SI information, and stores SI information acquired from the DEMUX 4 in the SI information storage area 18 in the memory 11.

  The user preference analysis unit 15 calculates a user preference probability of a user preference storage condition set in advance, and saves it as user preference information in the user preference information storage area 19 of the memory 11 as needed. The schedule control unit 16 determines the start time of the back program based on the SI information on the next program of each broadcasting station acquired from the SI information control unit 14 and the time managed by the time management unit 17, and the user preference analysis unit 15 A notification determination process is performed based on the acquired user preference information.

  In the notification determination process, for example, based on the vehicle information from the vehicle information acquisition unit 13, the current receiver state (whether it is in an active state or traveling in the case of in-vehicle), user setting information ( The notification setting (to be described later in FIG. 8) is confirmed, it is determined whether or not screen notification or voice notification can be executed, and an instruction to execute a program start notification is issued to the voice control unit 8 and the GUI unit 10 based on the determination result. .

Next, the operation will be described.
(1) User-preferred program registration process FIG. 3 is a flowchart showing the flow of a user-preferred program registration process performed by the digital broadcast receiver according to the first embodiment. The details of the operation will be described with reference to this figure.
In the user preference analysis unit 15 of the control unit 7, user preference accumulation conditions as shown in FIG. 4 are registered in advance. In this invention, the storage condition triggered by user operation is automatically established as the storage condition for defining the viewing tendency of the program from the operation input related to the program via the remote control receiving unit 12, the SI information included in the transport stream, and the viewing time. Storage conditions are provided.

  The storage condition triggered by a user operation is, for example, whether the program is a recording reservation operation (Condition 1), whether the recording is reserved and viewed (Condition 2), or is detailed in the electronic program guide. There is a program whose information has been confirmed (condition 3) or a program that has been selected again within a predetermined time (condition 4). As a storage condition for automatic establishment, whether the program genre (program search condition) specified from the SI information is the same program as the currently viewed program (Condition 5), or the currently viewed program is a predetermined time. Whether or not viewing continued (Condition 6).

  The user preference analysis unit 15 determines whether or not the user operation received by the remote control reception unit 12 matches an accumulation condition triggered by the user operation in FIG. Further, the user preference analysis unit 15 determines whether the program is a back program of the same program genre or a program with a predetermined viewing duration as an accumulation condition in automatic establishment in FIG. When there is a program that matches these accumulation conditions, the user preference analysis unit 15 holds the number of appearances of the matched condition in the condition weight determination table (1) shown in FIG. 5 (step ST1).

  Next, the user preference analysis unit 15 calculates the appearance ratio of each of the conditions 1 to 6 with respect to the total number of occurrences of all the conditions 1 to 6 held in the condition weight determination table (1) in a predetermined determination period, The weight values of conditions 1 to 6 are held in the condition weight determination table (2) shown in FIG.

  Subsequently, the user preference analysis unit 15 determines the number of times that the conditions 1 to 6 are met for each program, and the user preference program identification table (1) shown in FIG. Holds the number of matches. Thereafter, the user preference analysis unit 15 multiplies the weight value of each condition 1 to 6 held in the condition weight determination table (2) by the number of matches of each condition in the user preference program identification table (1) to obtain a weight. The user preference program specifying table (2) is created by classifying the programs in descending order of the index of the condition matching number multiplied by the value.

  The processing so far corresponds to step ST2, and the number of condition matches obtained by multiplying the above-described weight value is calculated as a user preference index (hereinafter referred to as user preference probability as appropriate) (preference index). In the example of FIG. 6, it is determined that the program C has the highest user preference probability and is the program most preferred by the user.

  When the user preference probability is calculated, the user preference analysis unit 15 acquires SI information of the target program for which the user preference probability is calculated from the SI information control unit 14 (step ST3), and stores the SI information of these target programs in the SI information storage area. 18 and the user preference probability of each program is registered in the user preference information storage area 19 of the memory 11 in association with these SI information (step ST4).

(2) Notification Setting Processing FIG. 7 is a diagram illustrating an example of a user preference program notification setting screen. Prior to the user preference program notification process, a notification setting screen 20 as shown in FIG. 7 may be displayed to allow the user to set program information accumulation and program start notification. Here, in the notification method column 20a, a notification method (priority notification, simultaneous notification, non-notification) whose details will be described later with reference to FIG. 10 is selected. In the priority notification, the start of only the program with the highest user preference probability is notified, and in the simultaneous notification, the programs to be broadcast as the back program are notified in the descending order of the user preference probability. The non-notification does not notify the start of the user-preferred program.

  In the case of a vehicle-mounted digital broadcast receiver, priority notification, simultaneous notification, or non-notification can be selected in accordance with the running state of the vehicle. For example, since the display of the television image is stopped while the vehicle is traveling, the screen notification is not notified, and the voice notification is switched. In addition, when the vehicle is parked, the program matching the user's preference can be notified more accurately by switching to the notification by the priority notification or the simultaneous notification.

  In the viewing tendency accumulation column 20b, whether or not viewing tendency can be accumulated for each user, that is, whether or not to register a user favorite program is set. Thereby, even if there are a plurality of users, each user can select whether or not his own viewing tendency can be accumulated. Setting for each user is also possible.

  The previous reset date column 20c is a column for displaying the date when the user preference information is deleted by the reset execution button 21, and the used user column 20d is a column for displaying a user. When the user wants to delete his / her preference information, the GUI unit 10 transmits the command to the schedule control unit 16 by pressing the reset execution button 21, and the user preference analysis unit 15 is controlled under the control of the schedule control unit 16. Thus, the preference information corresponding to the user displayed in the used user column 20d is deleted.

(3) User Preference Program Notification Processing FIG. 8 is a flowchart showing the flow of user preference program notification processing by the digital broadcast receiver according to the first embodiment, and details of the operation will be described with reference to this drawing.
First, the program table shown in FIG. 9 is broadcast, and the digital broadcast receiver according to the first embodiment is viewing the “program A-1” of 011ch of the broadcast station (A), and the time is 19:00. Consider the case where At this time, the schedule control unit 16 acquires SI information related to the next program of each broadcast station read from the SI information storage area 18 of the memory 11 by the SI information control unit 14.

  Next, the schedule control unit 16 notifies the user preference analysis unit 15 of the acquired SI information, and causes the user preference analysis unit 15 to acquire user preference information of the next program (step ST1a). In the example of FIG. 9, the user preference analysis unit 15 specifies “program B-2”, “program C-2”, “program D-2”, and “program E-2” that are started as back programs, User preference information of these programs is read from the storage area 19 of the memory 11.

  Subsequently, the user preference analysis unit 15 determines the notification priority of the back program to be started using the read user preference probability (step ST2a). For example, the user preference index (user preference probability) of “program B-2” is 4.80, the user preference index of “program C-2” is 8.55, and the user preference index of “program D-2” is 7. 55, assuming that the user preference index of “program E-2” is 6.20, the order of “program C-2”, “program D-2”, “program E-2”, “program B-2” To determine the priority of notification.

  The notification priority determined as described above is output from the user preference analysis unit 15 to the schedule control unit 16. Thereafter, the schedule control unit 16 determines whether or not a voice notification is set by a user operation (step ST3a). For example, when an operation input for designating audio notification is made at the remote control receiving unit 12, the start of the program is notified by audio through the speaker 8a. In addition, when the information (vehicle speed information etc.) which shows that the vehicle is driving | running | working is acquired from the vehicle information acquisition part 13, the schedule control part 16 switches a screen notification to an audio | voice notification.

  If it is determined that the voice notification is set, the schedule control unit 16 instructs the voice control unit 8 to perform voice notification so as to output the notification content according to the notification method set in advance on the notification setting screen 20. (Step ST4a).

  Thus, if priority notification is set, the start of the program having the highest user preference probability, that is, “program C-2” is notified by voice. When simultaneous notification is set, programs that start broadcasting as back programs are notified in descending order of user preference probability. The program start is notified by voice in the order of “program C-2”, “program D-2”, “program E-2”, and “program B-2” having a high user preference probability.

  When the voice notification is not set in step ST3a or when the voice notification is made in step ST4a, the schedule control unit 16 determines whether or not the screen notification is possible based on the information set on the notification setting screen 20 ( Step ST5a). At this time, if non notification is not set on the notification setting screen 20, the schedule control unit 16 instructs the GUI unit 10 to display the notification contents according to the notification method set in advance on the notification setting screen 20. (Step ST6a).

  FIG. 10 is a diagram illustrating an example of a screen notification of user preference program start. In FIG. 10, when the time reaches 19:00 while viewing “Program A-1” of 011ch of the broadcasting station (A), the processing is performed by the notification method set in advance on the notification setting screen 20 by the above-described processing. Made. For example, if priority notification is set, the fact that 041ch “program C-2” with the highest user preference probability has started is displayed in the window frame on the video screen of “program A-1.”

  When simultaneous notification is set, as shown in FIG. 10, on the video screen of “program A-1”, several programs with the highest user preference probability (“program C-2”, “program D-”) are displayed. 2 ”,“ Program E-2 ”,“ Program B-2 ”) are displayed in the window frame. Note that the window display described above may be a popup, for example. If non notification is set, as shown in FIG. 10, no notification is displayed on the video screen of “program A-1” even if the back program starts.

  As described above, according to the first embodiment, the storage condition for defining the viewing tendency of the program is set from the operation input related to the program, the program information, and the viewing time, and the number of matches with the storage condition for each program is set. On the other hand, a value weighted according to the number of appearances of the matched storage condition is calculated as a preference index, and the program information and the preference index for each program are stored in the memory 11 in association with each other, and the program stored in the memory 11 is stored. At the start time, the start notification of the program corresponding to the preference index is executed by at least one of the screen notification of the display 9a and the voice notification of the speaker 8a. In this way, a program that matches the program viewing tendency of the user using the storage condition that defines the viewing tendency of the program from the operation input, program information, and viewing time of the program, without the user being conscious of the processing related to the accumulation of the viewing tendency. By automatically registering, it is possible to notify the start of a program that matches the user preference.

  Further, according to the first embodiment, the user preference analysis unit 15 determines whether or not the program has been scheduled to be recorded (condition 1), whether or not the program is scheduled to be recorded and viewed (condition). 2) Whether or not the broadcast content of the electronic program guide extracted from the SI information is a read program (Condition 3), and whether or not the program is selected again within a predetermined time (Condition 4) The storage condition is whether the search condition of the program extracted from the SI information is the same program as the currently viewed program (condition 5), and whether the program has been viewed for a predetermined time (condition 6). Therefore, a program that matches the user's preference can be registered accurately.

  Further, according to the first embodiment, when the schedule control unit 16 reaches the start time of the program stored in the memory 11, the schedule control unit 16 responds to an operation input specifying screen notification or audio notification received by the remote control receiving unit 12. The program start notification is executed by screen notification or voice notification. Thereby, the notification of the program start according to a user preference is possible.

  Furthermore, according to the first embodiment, priority notification for notifying the start of a program with the highest preference index, simultaneous notification for listing programs in order from the highest preference index and simultaneously notifying the start of a plurality of programs, and program The notification setting screen 20 with the non-start notification as a setting item is displayed, and the schedule control unit 16 executes the contents of the setting item selected on the notification setting screen 20. By doing in this way, even when the display 9a is in an inactive state or cannot be displayed, or when each of a plurality of users wants to set notification contents independently, a program corresponding to each Notification of start is possible.

  Further, according to the first embodiment, the vehicle information acquisition unit 13 that acquires information on the traveling state of the vehicle on which the vehicle is mounted is provided, and the schedule control unit 16 indicates that the vehicle is traveling by the vehicle information acquisition unit 13. When the information is acquired, the screen notification is disabled and the voice notification is switched. Therefore, even when the video display is stopped while the vehicle is running, the start of the user-preferred program can be safely notified.

It is a block diagram which shows the structure of the digital broadcast receiver by Embodiment 1 of this invention. It is a block diagram which shows the connection relation with the internal structure of the control part in FIG. 1, and its periphery structure. 4 is a flowchart showing a flow of user preference program registration processing by the digital broadcast receiver according to the first embodiment. It is a figure which shows an example of user preference accumulation conditions. It is a figure which shows an example of a condition weight determination table. It is a figure which shows an example of a user preference program specific table. It is a figure which shows an example of the notification setting screen of a user preference program. 4 is a flowchart showing a flow of user preference program notification processing by the digital broadcast receiver according to the first embodiment. It is a figure which shows an example of a program schedule. It is a figure which shows an example of the screen notification of a user preference program start.

Explanation of symbols

  1 antenna (reception unit), 2 tuner (reception unit), 3 OFDM demodulation unit (demodulation unit), 4 DEMUX, 5 audio decoder (reproduction unit), 6 video decoder (reproduction unit), 7 control unit, 8 audio control unit , 8a Speaker (sound output unit), 9 Video control unit, 9a Display (display unit), 10 GUI unit, 11 Memory (storage unit), 12 Remote control receiving unit (operation input receiving unit), 13 Vehicle information acquisition unit, 14 SI information control unit, 15 user preference analysis unit (preference analysis unit), 16 schedule control unit, 17 time management unit, 18 SI information storage area, 19 user preference information storage area.

Claims (4)

A receiver for receiving digital broadcast from a broadcast station, a demodulator for demodulating the digital broadcast, a playback unit for reproducing a video signal and an audio signal from the demodulated signal demodulated by the demodulator, and displaying the video signal on a screen In a digital broadcast receiver including a display unit, an audio output unit that outputs the audio signal as audio, and an operation input reception unit that receives an operation input from outside,
Whether any of a plurality of programs selected and received within the predetermined determination period by the receiving unit is a program reserved for recording by an operation input via the operation input receiving unit, Whether or not the program has been viewed and received, whether or not the broadcast content of the electronic program guide has been read, whether or not the program has been re-selected within a predetermined time, whether the program and the program genre is the same, and whether the continued program a predetermined viewing time and determine the constant, respectively it, each of the of the total number of programs that meet one of the conditions of the previous SL determination the ratio of the number of satisfying programs determined to calculate as the appearance ratio of each condition of the determination, the reception unit within said predetermined determination period satisfies each condition of the determination for each program received It obtains the number, condition of the determination for this number A preference analysis unit that calculates a value obtained by multiplying the ratio of appearance as the preference index of each of the programs,
A storage unit that stores the program information of the program for which the preference index is calculated and the preference index of the program in association with each other;
For the program determined to be the next time based on the program information stored in the storage unit, the preference index is determined by at least one of the screen notification of the display unit and the audio notification of the audio output unit. A digital broadcast receiver comprising a schedule control unit for executing notification of the start of the programs in descending order. Schedule control unit, when the operation input screen notice or voice notification through the operation input reception unit has been specified, the program the program information stored in the storage unit determines that the start time based on the specified 2. The digital broadcast receiver according to claim 1, wherein the start notification of the program is executed by the notification method. The schedule control unit performs priority notification for notifying the start of only the program with the largest preference index, simultaneous notification for listing programs in the descending order of the preference index, and simultaneously notifying the start of a plurality of programs, and non-notification of program start The digital broadcast receiver according to claim 1 or 2, wherein the contents of the setting items selected based on a notification setting screen , each of which is a setting item, are executed. A vehicle information acquisition unit that acquires information related to the running state of the vehicle on which it is mounted,
4. The schedule control unit, when information indicating that the vehicle is running is acquired by the vehicle information acquisition unit, disables screen notification and switches to voice notification. 5. A digital broadcast receiver according to claim 1.

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