JP5566586B2 - Digital broadcast receiving terminal - Google Patents

Description

  The present invention relates to a digital broadcast receiving terminal, and more particularly to an operation key assigned to a sub service of multi-organization broadcasting, corresponding to multi-organization broadcasting in which a plurality of programs are broadcast at the same time on a channel for a single broadcasting station. To a digital broadcast receiving terminal capable of directly selecting a sub service.

  Terrestrial digital television broadcasting operated in Japan is called the ISDB-T (Integrated Services Digital Broadcasting for Terrestrial) system and employs an OFDM (Orthogonal Frequency Division Multiplexing) modulation system. In this ISDB-T system, a transmission band of one channel is divided into 13 segments, and 12 segments of them are allocated to terrestrial digital broadcasting. A high-definition program for one channel is broadcast using all 12 segments. In addition, “multi-organized broadcasting” is performed in which 12 segments are divided and a standard-definition program of up to 3 channels is broadcast at the same time.

  The multi-organized broadcast program (multi-organized program) is composed of one main service (main program) and one or more sub-services (sub-programs). Here, the configuration of the multi-organized program will be briefly described with reference to FIG. FIG. 9 is a diagram showing an example of an electronic program guide (EPG) when a multi-organized program exists. As described above, the multi-organization broadcasting is a digital broadcasting in which a maximum of three programs with a standard image quality are broadcast in a band corresponding to one channel for broadcasting one program with a normal high-definition image quality. In the program table shown as an example in FIG. 9, a broadcasting station having channel number 2 (2ch) broadcasts a multi-organized program composed of three programs in a time zone of 10:00 to 11:00. In other time zones, each broadcasting station broadcasts one program (single program). Further, FIG. 10 shows details of the list T1 of the portion surrounded by a broken line in the program table shown in FIG. In the case of FIG. 10, a broadcasting station having channel number 2 broadcasts a program (high school baseball), which is a single program, in the time zone from 9:00 to 10:00. Thereafter, this broadcasting station broadcasts the multi-organization program in the time zone from 10:00 to 11:00. That is, the band for one channel is divided into three subchannels (2-Ach, 2-Bch, 2-Cch), and different programs (high school baseball, news, variety) are broadcast on each subchannel. In addition, from 11:00, the multi-organization is finished, and a program (cultural program) that is a single program is broadcast.

  For terrestrial digital broadcast program designation, depending on the form of the remote control, it is a set of, for example, two keys (or buttons) that can be pressed provided on the remote control, and are “+” “−” or “▲” “▼”. "UP / DOWN key" marked with can be used. The user can switch (specify) the program to be viewed in descending or ascending order of the physical channel by pressing the up / down key. Similarly, a “numerical channel key” which is a button which is provided on the remote control and which is different from the “up / down key”, for example, numbers 1 to 12 are individually used. is there. For example, a broadcast station A is assigned to the numeral 1 and a broadcast station B is assigned to the numeral 2, respectively. The user can directly switch (designate) the channel to the channel of the broadcasting station associated with the numeric channel key by pressing the numeric channel key. Hereinafter, the “numeric channel key” is referred to as an “operation key”.

  In a conventional broadcast receiving terminal, when an operation key corresponding to a broadcast station that broadcasts a multi-organized program is pressed, the main service of the designated broadcast station is usually displayed. Therefore, in order for the user to view the sub service, it takes time and effort to operate the up / down keys after the main service is displayed, or to select the sub service to be viewed by displaying the EPG on the screen. Requires operation.

  For example, in the conventional technology of a broadcast receiving terminal corresponding to a multi-organized program, when the digital broadcast being viewed is a multi-organized program, the main service and the sub service are automatically displayed on the same screen, so that the user clearly indicates. A broadcast receiving terminal in which a sub service is displayed without designating the sub service is disclosed (refer to Patent Document 1).

  Further, for example, in the prior art of a broadcast receiving terminal corresponding to a multi-organized program, when a dedicated key prepared separately on the broadcast receiving terminal is pressed by the user during the broadcasting of the multi-organized program, the display unit of the broadcast receiving terminal In addition, a broadcast receiving terminal is disclosed in which a selection screen on which a user can select a multi-organized program that the user wants to view is displayed (see Patent Document 2).

JP 2004-193673 A JP 2003-14396 A

  However, in the broadcast receiving terminal according to the cited document 1, when the user desires to view only the sub service, the main service and the sub service are once displayed on the screen and then switched to the sub service display by a predetermined operation. It takes time and effort. In addition, there is a problem that power consumption becomes excessive because processing such as signal reception and decoding is required even for the main service that the user does not want.

  In the broadcast receiving terminal according to Patent Document 2, the main service is displayed when switching from a certain broadcasting station to the broadcasting station of the multi-organized program by directly selecting the channel, and if the dedicated key is not pressed, the multi-organized program is selected. The screen is not displayed. Therefore, in order to display the sub service of the multi-organized program, it is necessary to press the dedicated key or the sequential channel selection key and display / select the EPG. However, such an operation takes time and there is a problem that the operation method is difficult to understand compared to channel selection using the direct channel selection key.

  Accordingly, an object of the present invention is to support a multi-organization service in which a plurality of programs are broadcast at the same time on a channel for a single broadcasting station, and a sub service can be directly set by an operation key set manually or automatically An object of the present invention is to provide a digital broadcast receiving terminal excellent in usability that can be selected.

In order to solve the above-described problems, a digital broadcast receiving terminal according to the present invention provides:
A broadcast receiver for receiving digital broadcasts;
A display for displaying the digital broadcast received by the broadcast receiver;
An operation key for instructing the broadcast receiver to select a digital broadcast;
Assign a digital broadcast service to select the operation key,
When the digital broadcast received by the broadcast receiving unit is a multi-organization composed of a main service and a sub service, if the sub service is not assigned to the operation key, the sub service is automatically set to the operation key. A control unit that controls to be assigned to
Equipped with a,
The control unit controls to assign the sub service to an unassigned operation key.

  The control unit may control the sub service to be assigned to the operation key when the main service program and the sub service program do not match.

  In addition, it is preferable that the control unit performs control so as to cancel the assignment of the sub service to the operation key when the sub service assigned to the operation key ends.

  The control unit may display information on automatically assigned operation keys on a display unit.

  In addition, when the sub service assigned to the operation key is selected by the operation key assigned to the sub service and viewed for a predetermined time, the control unit selects an operation key corresponding to the sub service from the display unit. It is desirable to erase the information.

  As described above, according to the present invention, when a multi-organization broadcast is broadcast on a broadcast station selected by the user, the user directly selects the sub-service by the operation key assigned to the sub-service of the multi-organization broadcast. It becomes possible to station.

  Hereinafter, a broadcast receiving terminal according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following, a description will be given assuming that the broadcast receiving terminal is a stationary type, but the present invention is not limited to this, and a mobile portable receiving terminal (mobile phone, It should be noted that the present invention can also be applied to a PDA (Personal Digital Assistance).

  FIG. 1 is a functional block diagram of a broadcast receiving terminal according to an embodiment of the present invention. The broadcast receiving terminal 100 includes an antenna ANT, a broadcast receiving unit 110, a demultiplexer 120, an audio decoder unit 130, a video decoder unit 140, a data broadcast decoder unit 150, a screen control unit 160, a control unit 170, a storage unit 180, a display unit DIS. (For example, a liquid crystal display), a speaker SP, an operation input unit KEY (for example, an operation interface including numeric keys / up / down keys), and a system bus SB. The broadcast receiving unit 110 is composed of any suitable interface device that supports reception of terrestrial digital broadcasts, for example. In addition, the demultiplexer 120 is executed on any suitable processor such as an electronic circuit or a CPU (Central Processing Unit) suitable for separating digital terrestrial broadcast signals received by the broadcast receiving unit 110, for example. It consists of software. Further, the audio decoder unit 130, the video decoder unit 140, the data broadcast decoder unit 150, the screen control unit 160, and the control unit 170 are configured by any suitable processor such as a CPU (Central Processing Unit), for example. Each function of the audio decoder unit 130, the video decoder unit 140, the data broadcast decoder unit 150, the screen control unit 160, and the control unit 170 is software executed on the processor or dedicated to processing of each function. The processor (for example, DSP (digital signal processor)) can be constituted. In addition, the storage unit 180 includes, for example, a volatile memory (SRAM or the like), a nonvolatile memory (EEPROM or the like), or other suitable storage medium. The operation input unit KEY can be, for example, a pressable key (button) provided in the broadcast receiving terminal 100 itself. The operation input unit KEY may be provided separately from the broadcast receiving terminal 100 and may be configured as a remote control that remotely operates the broadcast receiving terminal 100. In this case, the broadcast receiving terminal 100 includes a receiving unit (not shown) that receives an input signal from the operation input unit KEY configured as a remote controller. The display unit DIS can also be configured as a display device that is provided separately from the broadcast receiving terminal 100 and connected via the interface of the broadcast receiving terminal. In this case, the broadcast receiving terminal 100 includes an interface for connecting a display device.

  The antenna ANT receives a digital terrestrial broadcast signal (RF signal), and the broadcast receiving unit 110 tunes the RF signal received by the antenna ANT based on a frequency (channel) designation command from the control unit 170 (frequency Convert. The channel designation command from the control unit 170 is based on the channel designated by the user using the operation input unit KEY. The broadcast receiving unit 110 demodulates the RF signal into an MPEG TS (Transport Stream) signal. The demultiplexer 120 detects an audio packet, a video packet, and a data broadcast packet based on a packet ID (PID) in the demodulated TS signal, and detects the audio packet in the audio decoder unit 130 and the video packet in the video decoder unit 140. The data broadcast packet is output to the data broadcast decoder unit 150, respectively. The audio decoder unit 130 decodes the audio data in the input audio packet and outputs it to the speaker SP. The video decoder unit 140 decodes the video data in the input video packet and outputs the decoded video data to the screen control unit 160. The data broadcast decoder unit 150 creates a screen image of the data broadcast screen based on BML (Broadcast Markup Language) in the input data broadcast packet, and outputs the created screen image to the screen control unit 160. In addition, the data broadcast decoder unit 150 extracts channel list information from the received data broadcast packet and supplies the information to the control unit 170. The screen control unit 160 creates screen data based on the input video data and data broadcast data, and controls to display the video or EPG on the screen display unit DIS. Further, the screen control unit 160 acquires information related to the allocation of the sub service and the operation key KEY1 from the control unit 170, creates screen data including the information, and displays the screen data on the screen display unit DIS. The operation input unit KEY functions to receive a predetermined operation from the user, and includes an operation key KEY1 for the user to select a certain program directly.

  Further, the control unit 170 includes an operation key assignment control unit 171 for assigning a digital broadcast service to be selected with respect to the operation key KEY1, and a digital broadcast broadcast data received by the broadcast reception unit 110 as a main service and a sub service. A multi-organization determination unit 172 that determines whether or not the multi-combination is performed, and an operation key assignment determination unit 173 that determines whether or not a digital broadcast service has already been assigned to the operation key KEY1 by the operation key assignment control unit 171. And an operation key automatic assignment that automatically assigns a digital broadcast sub-service to the operation key KEY1 (particularly, an unused operation key KEY1 that is judged not to be assigned a digital broadcast service by the operation key assignment determination unit 173). Part 174 and automatic operation key automatic assignment part 174 The automatic allocation result display control unit 175 that controls the display unit DIS to display information on the operation key KEY1 and a program determination unit 176 that determines whether or not the main service program matches the sub service program. And a viewing time accumulating unit 177 that accumulates the viewing time of the service when the service selected by the operation key KEY1 assigned by the operation key automatic assigning unit 174 is being viewed.

  The storage unit 180 further includes a channel list storage unit 181 that stores a channel list in which information necessary for channel selection is recorded, a digital broadcast service assigned by the operation key assignment control unit 171 and operation keys KEY1 corresponding thereto. The operation key assignment storage unit 182 that stores the relationship between the viewing time and the viewing time storage unit 183 that stores the viewing time for each sub-service accumulated by the viewing time accumulation unit 177.

(First embodiment)
FIG. 2 is an operation flowchart of the broadcast receiving terminal 100 according to the embodiment of the present invention. This embodiment shows an embodiment in which operation keys are assigned to sub-services of a multi-organized program automatically or manually when acquiring a channel list.

  First, the broadcast receiving terminal 100 performs a channel scan through the antenna ANT and the broadcast receiving unit 110, and acquires channel list information from the received signal (step S101). In the channel list information, information necessary for channel selection is recorded. Specifically, information on the broadcast station name, physical frequency (for example, physical channel or segment), and logical channel (channel number) is recorded. include. The channel list information varies depending on the area, and includes, for example, the metropolitan area channel list information, the central channel list information, and the Kansai channel list information. Based on the channel list information, the control unit 170 confirms broadcasts that can be received in the scanned area (step S102), and the operation key assignment control unit 171 performs the main service (main service) of each broadcast acquired from the channel list information. ) Is assigned to the operation key KEY1 and the assignment information is stored in the operation key assignment storage unit 182 (step S103).

  The multi organization determination unit 172 determines whether each broadcast is a multi organization program composed of a main service and a sub service (step S104). Note that information (control information) related to a multi-organized program is described in a component group descriptor in a received signal according to ARIB (Association of Radio Industries And Businesses). When the multi organization determination unit 172 determines that there is a multi organization program, the operation key assignment determination unit 173 refers to the operation key assignment storage unit 182, and the operation key KEY1 that is not assigned to the main service is assigned to the operation input unit KEY. It is determined whether or not it exists (step S105). When the operation key assignment determination unit 173 determines that there is an operation key KEY1 that is not assigned to the main service (hereinafter referred to as “unassigned operation key KEY1”) (YES in step S105), the control unit 170 displays the screen control unit. Through 160, control is performed so that a screen for confirming whether the user desires to manually or automatically assign the sub service to the unassigned operation key KEY1 is displayed on the display unit DIS (step S106). When a signal is sent to the control unit 170 that the user desires to manually or automatically assign the sub service to the unassigned operation key KEY1 by a predetermined key input of the operation input unit KEY, the operation key assignment control unit 171 performs control for assigning the unassigned operation key KEY1 to the following subservice (step S107).

  In step S106, when the user desires to manually assign the unassigned operation key KEY1 to the sub service, the operation key assignment control unit 171 refers to the operation key assignment storage unit 182 and passes through the screen control unit 160. The allocation information of the operation key KEY1 is displayed on the display unit DIS. Based on the display content of the display unit DIS, the user performs an operation of assigning a desired sub service to the unallocated operation key KEY1 on the screen of the display unit DIS by using a predetermined key of the operation input unit KEY. The operation key allocation control unit 171 acquires allocation information desired by the user from the operation input unit KEY, performs allocation according to the user's request, and stores the result in the operation key allocation storage unit 182. Such manual allocation by the user is assumed to be performed particularly for a desired sub-service, for example, when the user recognizes a broadcast station and start time of multi-organization broadcasting in advance. If the user desires, a sub service can be assigned to the operation key KEY1 already assigned to the main service, and the setting can be overwritten.

  In step S106, when the user desires to automatically assign the unassigned operation key KEY1 to the sub service, the operation key assignment control unit 171 instructs the operation key automatic assigning unit 174 to assign the sub service to the unassigned operation key. A notification is issued so as to be assigned to KEY1. The operation key automatic assigning unit 174 acquires information on the unassigned operation key KEY1 from the operation key assignment determining unit 173, and assigns a sub service to the unassigned operation key KEY1. For example, the operation key automatic assigning unit 174 can assign the sub service of the multi-organization broadcast to the unassigned operation key KEY1 in the vicinity of the operation key KEY1 assigned to the main service of a certain multi-program. The operation key automatic assignment unit 174 notifies the operation key assignment control unit 171 of the assignment result of the sub service and the unassigned operation key KEY 1, and the operation key assignment control unit 171 stores the result in the operation key assignment storage unit 182. To do. Such automatic allocation on the broadcast receiving terminal side is assumed to be performed, for example, when the user does not recognize the broadcast station and start time of multi-organization broadcasting in advance.

  The control unit 170 creates a channel list from the received channel list information (step S108), and stores the channel list in the channel list storage unit 181 (step S109).

  In Steps S104 to S106, there is no multi-organization broadcast (No in Step S104), there is no operation key KEY1 that is not assigned to the main service (No in Step S105), and the user operates the sub service. Even when the assignment to the key KEY1 is not desired (No in step S106), the control unit 170 creates a channel list from the received channel list information (step S108), and stores the channel list in the channel list storage unit 181. (Step S109) is completed.

  As described above, according to the present embodiment, in either case of manual allocation or automatic allocation, it is possible for the user to directly select the sub service by the operation key by allocating the sub service to the unallocated operation key. Sub-service tuning can be easily performed. In particular, by assigning a sub service to an unassigned operation key, the number of services that can be directly selected from the operation input unit is increased, and the convenience for the user can be improved.

(Second Embodiment)
FIG. 3 is an operation flowchart of the broadcast receiving terminal 100 according to the embodiment of the present invention. This embodiment shows an embodiment in the case where operation keys are assigned to sub-services of a multi-organized program during digital broadcast viewing. In the present embodiment, the storage unit 180 of the broadcast receiving terminal 100 includes an automatic allocation result storage unit (not shown).

  In the present embodiment, description will be given first along the main flow of steps S201 to S213, and then the branch flow shown in steps S300 to S500 will be described. FIGS. 9 to 16 respectively show an example of an electronic program guide (EPG) (FIG. 9), an example of a multi-organized program (FIG. 10), and an operation in the present embodiment when a multi-organized program exists. Example of assignment of main service to input unit KEY (FIG. 11), example of assignment of main service and sub service to operation input unit KEY (FIG. 12), example of main service displayed on display unit DIS (FIG. 13), display unit It is a figure which shows an example (FIG. 14) of the sub service displayed on DIS, and an example (FIG. 15, FIG. 16) of the main service displayed on the display part DIS, and an automatic allocation result display, and refer suitably in description of each step. To do.

  When the user presses the power key POW or the operation key KEY1 of the operation input unit KEY shown in FIG. 11, the broadcast receiving unit 110 starts channel selection and reception of broadcast waves in response to the key press (steps S201 to S201). S203). When the operation key KEY1 is pressed, the control unit 170 refers to the operation key assignment storage unit 182 and receives the broadcast station signal corresponding to the pressed operation key KEY1. To control. When the power key POW is pressed, the control unit 170 controls the broadcast receiving unit 110 so as to receive the signal of the channel (last channel) received last in the previous reception. Note that the last channel can be stored in the storage unit 180.

  The multi organization determination unit 172 determines whether or not the broadcast being received is a multi organization broadcast and one or more sub services being received have ended (step S204). For example, in the case of the multi-organized program shown in FIG. 10, since three programs (one main service and two sub-services) of 10: 00-11: 00 have the same broadcast time length, while watching a certain program, There is no subservice to be terminated, but for example, when the lengths of the broadcast times of the two subservices are different, there is a subservice to be terminated while viewing a certain program. When the multi organization determination unit 172 determines that the sub service of the currently receiving multi organization broadcast has not ended, the program determination unit 176 determines whether the broadcast being received is the main service of the multi organization broadcast ( Step S205). For example, according to the ARIB standard, a program whose component group ID value is “0x0” is a main service, and other programs are sub-services. When the broadcast being received is the main service, for example, when the multi-organized program high school baseball (standard image quality) shown in FIG. 10 is viewed, the program determination unit 176 further includes at least one sub-program. It is determined whether the service program is different from the main service program (step S206). If the program determination unit 176 determines that there is no sub-service of a program different from the main service, the control unit 170 controls the broadcast receiving unit 110 and the screen control unit 160 to display only the main service (step S207). If the program determination unit 176 determines that the program of at least one sub service is different from the program of the main service, for example, a multi-organization program of 10: 00-11: 0 in FIG. 10, the operation key assignment determination unit 173 Then, it is determined whether or not the operation key KEY1 is assigned to a sub service in which the main service and the program are different (step S208). When only the main service is assigned to the operation key KEY1 as in the operation input unit KEY shown in FIG. 11, the operation key assignment determination unit 173 operates the operation key for the sub service in which the main service and the program are different. It is determined that KEY1 is not assigned. In this case, the operation key assignment control unit 171 performs control for assigning the operation key KEY1 to a sub service having a program different from the main service (step S600).

  FIG. 7 is a diagram showing details of an operation flow in which the operation key KEY1 is assigned to a sub service in which the main service and the program are different. The operation key assignment control unit 171 notifies the operation key automatic assignment unit 174 to assign the sub service to the unassigned operation key KEY1. The operation key automatic assigning unit 174 acquires information on the unassigned operation key KEY1 from the operation key assignment determining unit 173, and assigns a sub service to the unassigned operation key KEY1. For example, the operation key automatic assigning unit 174 can assign the sub service of the multi-organization broadcast to the unassigned operation key KEY1 in the vicinity of the operation key KEY1 assigned to the main service of a certain multi-program. The operation key automatic assignment unit 174 notifies the operation key assignment control unit 171 of the assignment result of the sub service and the unassigned operation key KEY 1, and the operation key assignment control unit 171 stores the result in the operation key assignment storage unit 182. To do. For example, when watching high school baseball (main service, 2-Ach) of the multi-organization program shown in FIG. 10, two sub-services (2-Bch, 2-Cch) are not allocated as shown in FIG. Assigned to “key 3” and “key 4” of the operation key KEY1, respectively.

  When the operation key assignment control unit 171 performs automatic assignment of the operation key KEY1 by the operation key automatic assignment unit 174, the automatic assignment result display control unit 175 displays the automatic assignment result display (hereinafter, “automatic assignment result display”) as a display unit. Processing for displaying on the DIS is performed. First, the automatic assignment result display control unit 175 refers to the operation key assignment storage unit 182 to configure an automatic assignment result between the sub service being received and the operation key KEY1, and the automatic assignment result is stored in the automatic assignment result storage unit ( (Step S209). Further, the automatic allocation result display control unit 175 instructs the screen control unit 160 to add the automatic allocation result display to the decoded video information of the main service, and the screen control unit 160 stores the automatic allocation result storage. The automatic allocation result display together with the video information of the main service is displayed on the display unit DIS (steps S210 and S211). For example, when watching the high school baseball (main service) of the multi-organization program shown in FIG. 10 (FIG. 13), two sub-services (2-Bch, 2-Cch) are automatically assigned to the operation key KEY1 as shown in FIG. When assigned, the automatic assignment result is displayed as shown in FIG. In FIG. 15, an automatic assignment result display area 200 is formed in a part of the display unit DIS, and “2-Bch” is assigned to “key 3” and “2-Cch” is assigned to “key 4”. Is displayed.

  The display / non-display of the automatic assignment result display can be switched by a predetermined key (for example, display non-display switching key KEY2) of the operation input unit KEY (step S700). FIG. 8 is a diagram showing details of the operation flow of the display / non-display switching process of the automatic allocation result display. The automatic assignment result display control unit 175 determines whether the user desires to display the operation key automatic assignment result (step S701). For example, in the initial setting, the automatic assignment result display is set to be displayed, and the user, for example, the display non-display switching key KEY2 of the operation input unit KEY which shows the non-display of the automatic assignment result display as shown in FIGS. It can be switched by pressing. When the user desires to display the automatic assignment result, the automatic assignment result display control unit 175 refers to the automatic assignment result storage unit and checks whether all the operation key automatic assignment results for the sub-service of the channel being viewed have been deleted. Confirmation is made (step S702), and if not all are deleted, an instruction is given to the screen control unit 160, and an operation key automatic assignment result display is displayed on the display unit DIS (step S703). When the user does not wish to display the automatic allocation result, the automatic allocation result display control unit 175 instructs the screen control unit 160 to hide the automatic allocation result display, and the screen control unit 160 automatically displays the display unit DIS. The allocation result display area is hidden (step S704).

  When the power of the operation input unit KEY is turned on by the power key POW, the digital broadcast is continuously viewed until the power of the broadcast receiving terminal 100 is turned off, and when a new broadcasting station is selected, the process returns to the tuning step S202 ( If there is no viewing end operation in step S212), the process returns to the broadcast wave receiving step (step S213). In step S212, when channel switching to another broadcasting station occurs, the assignment of the operation key KEY1 to the sub service of the multi-organization broadcasting that was viewed before the channel switching can be canceled. It is also possible to maintain the assignment between the sub service manually assigned by the user and the operation key KEY1, and to release only the assignment between the sub service automatically assigned on the broadcast receiving terminal 100 side and the operation key KEY. . By releasing the assignment, the unassigned operation key KEY1 can be released for multi-organized programs of other broadcasting stations when the channel is selected. In addition, by distinguishing whether the operation key assignment is performed manually by the user or automatically performed on the terminal side, the operation key assignment to the sub service that the user particularly desires is maintained, while other broadcasting is performed. It becomes possible to release the operation key KEY1 for the multi-organization program of the station.

  Next, each branch flow shown in steps S300 to S500 will be described.

  In step S204, if the multi-organization determination unit 172 determines that the broadcast being received is a multi-composition broadcast and one or more sub-services being received have ended, the process of the broadcast receiving terminal 100 performs operation key assignment. The process proceeds to the release process (step S300).

  FIG. 4 is a diagram showing an operation flow of the operation key assignment cancellation process. The operation key assignment determination unit 173 refers to the operation key assignment storage unit 182 to determine whether or not there is an operation key KEY1 assigned to the terminated sub service (step S301). If there is an operation key KEY1 assigned to the finished sub-service, the operation key assignment control unit 171 cancels the assignment to the finished sub-service, and the operation key assignment storage unit 182 and the automatic assignment result storage unit The contents are updated (step S302). Next, the control unit 170 controls the display unit DIS to display the selected main service or sub service through the screen control unit 160 (step S303). By canceling the assignment to the sub-service thus completed, the unassigned operation key KEY1 can be released for another sub-service. If the user manually assigns the operation key KEY1 to the finished sub service, it is conceivable to maintain the assignment to the finished sub service. By distinguishing whether the operation key assignment is manually performed by the user or automatically performed on the terminal side, while maintaining the operation key assignment to the sub service that the user specifically desires, Therefore, the operation key KEY1 can be released.

  If the multi-organization determination unit 172 determines in step S205 that the program being received is not the main service, the process of the broadcast receiving terminal 100 proceeds to the viewing time accumulation process (step 400).

  FIG. 5 is a diagram showing a detailed operation flow of the viewing time accumulation process. The control unit 170 determines, through the operation key assignment determination unit 173, whether the channel selection of the broadcast by the user is performed by the operation key KEY1 automatically assigned to the sub service by the operation key automatic assignment unit 174. (Step S401). When channel selection is performed with the automatically assigned operation key KEY 1, the viewing time accumulating unit 177 calculates the accumulated viewing time after the sub-service allocation, and stores the accumulated viewing time in the viewing time storage unit 183. (Step S402). Next, the control unit 170 controls the display unit DIS to display the sub service through the screen control unit 160 (step S403). As described above, by calculating the cumulative viewing time of the sub service selected by the automatically assigned operation key KEY1, it is possible to determine how much the user recognizes the result of the automatic assignment after the automatic assignment. It becomes possible to utilize as.

  In step S208, when the operation key assignment determination unit 173 determines that the operation key KEY1 is assigned to a sub-serve service that is different from the main service, the broadcast receiving terminal 100 performs automatic assignment result display deletion processing. Move to (Step S500).

  FIG. 6 is a diagram showing a detailed operation flow of the automatic assignment result display deletion process. The control unit 170 determines whether the user has manually performed sub service key allocation through the operation key allocation determination unit 173 (step S501). When the user performs manually, the control unit 170 controls the display unit DIS to display the selected main service through the screen control unit 160 (step S502). When the sub service key allocation is automatically performed by the operation key automatic allocation unit 174, the automatic allocation result display control unit 175 refers to the viewing time storage unit 183, and the total viewing time after key allocation is predetermined. If the total viewing time after key assignment exceeds a predetermined value, the automatic assignment result display control unit 175 determines that the sub-total viewing time exceeds the predetermined value (step S503). The service key assignment is deleted from the automatic assignment result display (step S504). If the total viewing time is equal to or less than the predetermined value, the control unit 170 controls the display unit DIS through the screen control unit 160 so as to display the key assignment result of the sub-channel of the main service being received (step S505). ). For example, when high school baseball (main service) of the multi-organized program shown in FIG. 10 is selected for viewing, it is a sub-service of the multi-organized program, and the operation key KEY1 “key 3” is assigned as shown in FIG. When the total viewing time of news (2-Bch) exceeds a predetermined value, the automatic allocation result display is performed as shown in FIG. In FIG. 16, an automatic assignment result display area is formed in a part of the display unit DIS, and it is not displayed that “2-Bch” is assigned to “key 3”. Only the fact that it is assigned to key 4 "is displayed. In this way, the automatic allocation result display of the sub service key whose total viewing time after key allocation exceeds a predetermined value is not displayed on the screen, thereby displaying the key allocation information that the user has already recognized on the screen. Can be prevented.

  According to the present embodiment, by assigning a sub service to an unassigned operation key, the user can directly select a sub service with the operation key, and the sub service can be easily selected. In addition, by controlling to assign a sub service to an unassigned operation key, the number of services that can be selected directly from the operation input unit is increased, and user convenience can be improved. Further, when the main service program and the sub service program do not match, it is possible to prevent the duplicate service from being assigned to the operation input unit by controlling the sub service to be assigned to the operation key. Convenience can be improved. Further, when the sub service assigned to the operation key is terminated, the operation key can be released to another sub service by performing control so as to cancel the assignment of the sub service to the operation key. In addition, by displaying information on the operation keys automatically assigned on the display unit, the user can be informed of the existence of multi-organized broadcasting and the user can directly select a sub service using the operation keys. Become. In addition, when a sub service assigned to an operation key is viewed for a predetermined time after being selected by the operation key assigned to the sub service, information on the operation key corresponding to the sub service is deleted from the display unit. Thus, it is possible to prevent information that the user has already recognized from being continuously displayed on the screen and to prevent the user from feeling uncomfortable.

  Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, functions included in each component can be rearranged so as not to be logically contradictory, and a plurality of components can be combined into one or divided. The operation keys to be selected for each broadcasting station have been described by taking the remote controller as an example. However, the present invention is not limited to this, and reception that can be selected with a key (button) or the like provided in the broadcast receiving terminal. It is also possible to adapt to the terminal.

It is a figure which shows the structure of the broadcast receiving terminal which concerns on one embodiment of this invention. It is an operation | movement flowchart at the time of the channel list acquisition of the broadcast receiving terminal which concerns on one embodiment of this invention. It is a flowchart of the operation | movement at the time of digital broadcast viewing of the broadcast receiving terminal which concerns on one embodiment of this invention. It is an operation | movement flowchart of the operation key allocation cancellation | release process of the broadcast receiving terminal which concerns on one embodiment of this invention. It is an operation | movement flowchart of the viewing-and-listening time accumulation process of the broadcast receiving terminal which concerns on one embodiment of this invention. It is an operation | movement flowchart of the automatic allocation result display deletion process of the broadcast receiving terminal which concerns on one embodiment of this invention. It is an operation | movement flowchart of the operation key allocation process of the broadcast receiving terminal which concerns on one embodiment of this invention. It is an operation | movement flowchart of the automatic allocation result display non-display switching process of the broadcast receiving terminal which concerns on one embodiment of this invention. It is a figure which shows an example of an electronic program guide (EPG: Electronic Program Guide) in case a multi-organization program exists. It is a figure which shows an example of a multi-organization program. It is a figure which shows the example of allocation of the main service with respect to the operation input part of the broadcast receiving terminal which concerns on one embodiment of this invention. It is a figure which shows the example of allocation of the main service and subservice with respect to the operation input part of the broadcast receiving terminal which concerns on one embodiment of this invention. It is a figure which shows an example of the main service displayed on the display part of the broadcast receiving terminal which concerns on one embodiment of this invention. It is a figure which shows an example of the sub service displayed on the display part of the broadcast receiving terminal which concerns on one embodiment of this invention. It is a figure which shows an example of the main service displayed on the display part of the broadcast receiving terminal which concerns on one embodiment of this invention, and an automatic allocation result display. It is a figure which shows an example of the main service displayed on the display part of the broadcast receiving terminal which concerns on one embodiment of this invention, and an automatic allocation result display.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Broadcast receiving terminal 110 Broadcast receiving part 120 Demultiplexer 130 Audio decoder 140 Video decoder 150 Data broadcast decoder 160 Screen control part 170 Control part 171 Operation key assignment control part 172 Multi organization determination part 173 Operation key assignment determination part 174 Operation key automatic assignment Unit 175 Automatic allocation result display control unit 176 Program determination unit 177 Viewing time accumulation unit 180 Storage unit 181 Channel list storage unit 182 Operation key allocation storage unit 183 Viewing time storage unit 200 Automatic allocation result display area DIS Display unit SP Speaker KEY Operation input KEY1 Operation key SB System bus ANT Antenna

Claims (5)

A broadcast receiver for receiving digital broadcasts;
A display for displaying the digital broadcast received by the broadcast receiver;
An operation key for instructing the broadcast receiver to select a digital broadcast;
Assign a digital broadcast service to select the operation key,
When the digital broadcast received by the broadcast receiving unit is a multi-organization composed of a main service and a sub service, if the sub service is not assigned to the operation key, the sub service is automatically set to the operation key. A control unit that controls to be assigned to
Equipped with a,
The digital broadcast receiving terminal , wherein the control unit performs control so that the sub service is assigned to an unassigned operation key .   2. The digital broadcast receiving terminal according to claim 1, wherein the control unit performs control so that the sub service is assigned to an operation key when the program of the main service and the program of the sub service do not match.   2. The digital broadcast receiving terminal according to claim 1, wherein when the sub service assigned to the operation key ends, the control unit performs control so as to release the assignment of the sub service to the operation key.   2. The digital broadcast receiving terminal according to claim 1, wherein the control unit displays information on automatically assigned operation keys on a display unit. When the sub service assigned to the operation key is selected by the operation key assigned to the sub service and viewed for a predetermined time, the control unit displays information on the operation key corresponding to the sub service from the display unit. 5. The digital broadcast receiving terminal according to claim 4 , wherein the digital broadcast receiving terminal is erased.

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