JP5027862B2 - Broadcast receiver - Google Patents

Description

  The present invention relates to a broadcast receiving apparatus that receives a television broadcast (mainly a digital broadcast) broadcast via a satellite, a cable, or a ground wave.

  A conventional broadcast receiving apparatus is known from, for example, Japanese Patent Laid-Open No. 9-270673 (Patent Document 1). That is, Patent Document 1 discloses a means for superimposing and displaying a back program list display while viewing a certain program, a means for displaying information on a plurality of back programs in characters in the back program list display, and scrolling the back program display. And a means for erasing the back program list display when one of a plurality of displayed back programs is designated and selecting the channel of the designated back program and displaying it on the screen. A receiving device is described.

Japanese Patent Laid-Open No. 9-270673

  However, the above-mentioned Patent Document 1 does not occupy the screen of the broadcast content currently being viewed, and displays the program information related to the selected back program and the sub-screen related to the back program on the screen for checking the back program. The display of broadcast video has not been sufficiently considered.

  In view of the above-described problems, an object of the present invention is to provide a broadcast receiving apparatus capable of confirming a back program without switching a channel of a currently viewed program.

In order to achieve the above object, according to the present invention, in a broadcast receiving apparatus, a tuner for receiving a digital broadcast program, storage means for storing information relating to video, and viewing of a program received by the tuner, When an instruction for displaying information related to a video other than the currently viewed program is given, the video of the currently viewed program received by the tuner is displayed in the first area of the display screen, and A controller that acquires the information from the storage unit, displays information about the video other than the currently viewed program acquired from the storage unit, and displays a video other than the currently viewed program in the second area of the display screen; And when the operation for switching the video other than the currently viewed program is performed when the information and the video other than the currently viewed program are displayed in the second area, ( A process of acquiring and displaying information related to the video specified by the operation from the storage means, and (b) a process of processing and displaying a video other than the specified program being viewed. As a result, the display switching of the information corresponding to the video other than the currently viewed program and the display switching of the video other than the currently viewed program are performed asynchronously, and the currently viewed program designated by the switching operation is performed. The broadcast receiving apparatus is characterized in that after information related to a video other than that is displayed, a video other than the program being viewed is displayed with a delay .

Also, the present invention is characterized in that, in the broadcast receiving apparatus, the content of information related to video other than the program being viewed includes a network name, a channel number, a broadcast time zone, and broadcast content .

  According to the present invention, there is an effect that the back program currently being broadcast can be easily and quickly confirmed by the back program check screen without occupying the screen of the broadcast content currently being viewed.

It is a schematic block diagram which shows one Embodiment of the broadcast receiver which concerns on this invention. FIG. 10 is a diagram showing a case where a default state at the time of starting the back program check is displayed on the [Back Program Check] screen without occupying the screen of the broadcast content currently being viewed on the display screen in the broadcast receiving apparatus according to the present invention. is there. It is a figure which shows the video information (TS packet) of the back program shown on the subscreen which concerns on this invention. It is a processing flowchart which shows 1st Embodiment regarding the [back program check] in the broadcast receiver which concerns on this invention. On the display screen in the broadcast receiving apparatus according to the present invention, the back program information selected from the default state at the time of starting the back program check on the [Back program check] screen without occupying the screen of the currently viewed broadcast content Is a view showing a state in which the broadcast video of the back program is displayed on the sub-screen. It is a processing flowchart which shows 2nd Embodiment regarding the [back program check] in the broadcast receiver which concerns on this invention.

  Embodiments of a broadcast receiving apparatus according to the present invention will be described with reference to the drawings.

[First Embodiment]
First, a first embodiment of a broadcast receiving apparatus according to the present invention will be described with reference to FIGS.

  FIG. 1 is a schematic configuration diagram showing an embodiment of a broadcast receiving apparatus according to the present invention. Reference numerals 10 and 11 denote tuner units that can simultaneously receive the broadcast of the program currently being viewed and the broadcast of the back program. In other words, the tuner unit 10 receives the broadcast of the program currently being viewed, and the tuner unit 11 receives the broadcast of the back program.

  For example, the tuner unit 11 receives a digital broadcast signal from a digital broadcast source from a broadcast station (not shown) via a satellite / terrestrial / cable broadcast transmission network, and a user operation unit such as a remote controller as a user interface unit and control. After channel selection and detection processing are performed on the frequency of the channel designated via the unit (CPU) 14, digital demodulation and error correction (FEC: Forward Error Correction) processing is performed on the signal, and a digital signal (for example, MPEG2) -TS) is output to the TS (Transport Stream) separator 12.

  A TS (Transport Stream) demultiplexer (demultiplexer) 12 receives broadcast signals of a currently viewed program and a selected back program received by each of the tuner units 10 and 11 (a plurality of specified channel channels). This is a device that extracts (separates) video signals (video PES (Packetized Elementary Stream) or ES (Elementary Stream)), audio signals (audio PES or ES), and program information from transport packets.

  The control unit (CPU) 14 stores the program information extracted by the TS separation device 12 in the storage device 15. The decoding unit (for example, MPEG decoder) 13 decodes (decodes) and outputs the video signal (video PES or ES) and audio signal (audio PES or ES) extracted by the TS separator 12. The control unit (CPU) 14 has a function of controlling each unit of the apparatus, performing information processing, and assisting the user in selecting a program or a channel.

  The storage device 15 is a device that temporarily stores information. The remote control device 16 selects BS digital broadcasting by a broadcasting satellite (BS: Broadcast Satellite), terrestrial digital broadcasting, or CS digital broadcasting by a communication satellite (CS: Communication Satellite) by performing left and right pushing operations, A selection button 161 for selecting a channel by operation and a back program check button 162 are provided.

  An IR (Infrared) receiver (remote control receiver) 17 receives a remote control signal, decodes it, and transmits it to the controller 14. The video conversion device 18 converts, for example, the video signal of the program being viewed decoded by the MPEG decoder 13 into a broadcast video to be displayed on the screen 2 being viewed, and based on the back program information obtained from the control unit (CPU). A reverse program check screen (OSD: On Screen Display) 4 is formed, and for example, the video information of the reverse program decoded by the MPEG decoder 13 is displayed on the sub-screen 3 in the reverse program check screen. It is an apparatus for converting into broadcast video of a program. The display device 19 is composed of a CRT, a liquid crystal, or a PDP, and includes a speaker device.

  Note that the program information is data including attached information such as contents and broadcast time of a broadcast program. The program information is multiplexed with the broadcast signal, received, separated, and stored in the storage device 15. However, the program information may be acquired from a broadcast or communication different from the program broadcast itself and stored in the storage device 15.

Therefore, since the present embodiment is configured with a plurality of tuners, the control unit (CPU) 14 occupies the screen 2 of the broadcast content currently being viewed on the display screen 1 as shown in FIG. For example, the back program information (network name (BS digital broadcast, terrestrial digital broadcast, CS digital broadcast) designated by the button operation of the remote controller 16 stored in the storage device 15 is displayed on the screen 4 of [Check Back Program] in the lower area Etc.) / Channel number / Broadcasting station logo / Broadcasting time zone (currently viewing) / Broadcast contents (program title only) etc.) are displayed immediately and 500 msec or more after the back program check information is confirmed. It is possible to control the broadcast video of the back program to be displayed as the sub-screen 3 asynchronously with a delay. FIG. 2 shows a default state (display of a currently viewed program) when the [Back Program Check] screen is activated.

  Here, the vertical dimension of the back program check screen 4 is set to be approximately 25% or less of the vertical dimension of the display screen so as not to greatly disturb (that is, not occupy) the viewing of the currently viewed program. Yes. For this reason, only the program title is displayed as information regarding the broadcast content displayed on the back program check screen 4.

However, if the vertical dimension of the back program check screen 4 is less than the above numerical value, a simple description (for example, program category, performer, outline, etc.) indicating the contents of the program is included together with the program title. It may be displayed. Further, in order to further improve the visibility of the currently viewed program, the back program check screen 4
May be made translucent so that a part of the video of the currently viewed program is transmitted through the back program check screen 4.

  By the way, since the video information (TS packet) displayed on the child screen 3 is composed of a group unit (500 msec) having a sequence header 20 and a GOP (Group of Picture) 21 as shown in FIG. It takes 500 msec at the maximum to acquire the video information to be displayed on the screen. Here, GOP21 is a video data group unit for performing moving image compression. For example, one group unit of GOP is formed by the number of pictures (about 15) required for moving image display in 0.5 seconds. Composed.

  Each group unit includes one I (Intra) picture at the head. As a result, it is possible to start display from an arbitrary GOP 21 on the stream to the child screen. Note that a sequence header 20 is attached immediately before each GOP, and the reproduction start position of the recorded video data can be determined based on the sequence header.

  For this reason, this embodiment displays the selected back program information (character or graphic information related to the back program) on the back program check screen in the lower area, for example, without occupying the screen of the broadcast content currently being viewed. In addition, the broadcast video of the back program (video information related to the back program) is displayed on the sub-screen asynchronously so that the back program can be easily and immediately confirmed.

  Next, in the broadcast receiving apparatus according to the present embodiment, without occupying the screen of the currently watched broadcast content, for example, the back program information specified by the button operation on the [Back Program Check] screen in the lower area is displayed. The control for immediately displaying the back program text or graphic information) and asynchronously displaying the broadcast video of the back program as a sub-screen within the [Back Program Check] screen will be described with reference to FIG. First, when a back program check button 162 of the remote controller 16 is pressed, the signal is transmitted from the remote controller 16 to the IR receiver 17 and input to the control unit (CPU) 14, and the [Back Program Check] screen 4 is activated. Channel selection (designation) of the back program is started (S100).

  At this time, re-tuning, blanking, and audio mute are not performed. As the default at the time of starting, as shown in FIGS. 2 and 5A, the program currently being viewed is displayed. Further, when the back program check button 162 or the return button (not shown) is pressed during activation, it is canceled.

  Next, by operating the back program selection button 161, the signal is transmitted from the remote controller 16 to the IR receiver 17 and input to the control unit (CPU) 14 to select (designate) the back program. Note that the corresponding channel is selected by performing a “decision” operation with the remote controller 16. At this time, the [Back Program Check] screen 4 remains displayed. In addition, when a program currently being viewed is selected, re-tuning is not performed. In addition, when the program is activated by the back program check button 162, a timeout occurs in 3 minutes after the operation is lost.

  Also, the memory of the last selected CH information is not stored, and the program currently being viewed is displayed when this screen is activated. Further, when the initial scan of the terrestrial digital is not performed, since there is no program information, network switching is skipped. In addition, when “ch ↑ / ↓” is pressed while the back program check is activated, ch of the parent screen is up / down.

  Also, channels set to [Yes] in [Menu / Receive Settings / Terrestrial Digital / CH Skip Settings] are skipped and cannot be selected. In addition, if the AC is turned on / off after scanning the terrestrial digital, the title may be cleared. If the channel selection is determined by the back program check (back program check button 162), the back program check ends.

Moreover, the following can be considered as the starting conditions for the back program check.
(1) The back program check display is not activated during data broadcasting (when “Cannot be operated during data broadcasting” message is displayed), [Maintenance Mode] is displayed, [Service Adjustment Screen] is displayed, and 2 screens are displayed.

The back program check is a late priority with the same start priority as the TV menu except for the above.
(2) The start of data broadcasting is prohibited during the back program check display.
(3) When “RETURN” is pressed or when another user application is activated, the back program check display is terminated.

  When the back program check is activated and channel selection (designation) of the back program is started in this way, the control unit (CPU) 14 causes the back side of the back program selected (designated) stored in the storage device 15. The program information (character or graphic information related to the back program) is read and acquired (S111), and the acquired back program information is displayed on the display device 19 via the video conversion device 18 as shown in FIG. Without occupying the screen 2 of the broadcast content currently being viewed on the screen 1, for example, it can be immediately displayed on the [Back Program Check] screen 4 in the lower area and confirmed immediately (S112).

  For example, the contents of the program information displayed on the [Back Program Check] screen 4 in the lower area are network name / channel number / broadcaster logo / broadcasting time zone (currently being watched) / broadcast content (only program title name). Character or graphic information.

  In addition, while [Back Program Check] is displayed, the “cursor ← / →” of the selection button 161 of the remote controller 16 is used to select a network (broadcast source such as terrestrial digital / BS / CS), and the “cursor ↑ / ↓” is used for each network. CH (channel) is switched, and program information corresponding to the CH is displayed.

  Switching between the network and the CH is performed with reference to a network switching key 41 and a channel switching key 42 displayed in the program check screen 4 as shown in FIG. The network switching key 41 is an icon for switching networks such as digital terrestrial broadcasting and BS broadcasting, for example, and switches the network in conjunction with the operation of “cursor ← / →”. For example, each time “cursor →” is pressed, the network is switched in a predetermined order. FIG. 2 shows an example in which a BS is selected as the network.

  The CH switching key 42 is an icon for switching the CH broadcast on the network selected by the network switching key 41, and switches the CH in conjunction with the operation of “cursor ↑ / ↓”. For example, every time the “cursor ↓” is pressed, the channel is sequentially switched from a smaller numbered channel to a larger numbered channel. FIG. 2 shows an example in which the BS first channel is selected as the BS broadcast channel. This configuration facilitates selection of the back program.

  5A to 5C, the network switching key 41 and the CH switching key 42 are not shown for the sake of simplicity.

  The switching order of [Network Name] is as follows, with the network currently being viewed as the default.

[BS] ⇔ [Terrestrial Digital] ⇔ [CS] ⇔
The order of [CH number] is the same as [Program table], with [CH] currently being viewed as the default.

  Also, when the back program check program is in the following state, it is as follows.

(1) Viewing external input: Digital last channel
(2) HDD playback: Digital last channel
(3) Viewing terrestrial ana ... Last channel of terrestrial digital
(4) When starting for the first time in the state of (1), (2) and (3) above after setting the shipment ... BS101ch
When the back program check is activated and the selection (designation) of the back program is started, the control unit (CPU) 14 performs steps S101 to S106 asynchronously with the program information acquisition step S111 and the program information display step S111. As shown in FIG. 5C, it is possible to display the broadcast video of the selected back program on the sub-screen 3 in the screen 4 of [Back Program Check].

  That is, the sub-screen (moving image) 3 is displayed after the selection of the back program is started and the back program check information is confirmed. In this way, in order to display the broadcast video of the back program on the sub-screen while displaying the broadcast content of the program being viewed on the screen 2, it is necessary to provide at least two tuners 10 and 11 as shown in FIG. is there. The broadcast content for the program being viewed is received by the tuner 10, for example, and the broadcast content for the back program is received by the tuner 11, for example.

  Displaying the broadcast content of the program being viewed on the screen 2 will be briefly described. That is, for example, when a program to be viewed is selected by operating a key on the remote controller 16, tuner setting is performed for the tuner unit 10 that receives a digital broadcast signal based on control from the control unit (CPU) 14. Then, after selecting and detecting the frequency of the designated program to be viewed, a digital signal (for example, MPEG2-TS) obtained by subjecting the signal to digital demodulation and error correction processing is output.

Next, the TS filtering setting for the TS (Transport Stream) separation device 12 for the program to be viewed that is selected (designated) based on the control from the control unit (CPU) 14 is executed and output from the tuner unit 10. A video signal (video PES or ES) of the program to be viewed is extracted from a plurality of transport packets of the program to be viewed. Next, the video signal of the program to be viewed obtained from the TS separation device 12 is decoded (decoded) in the decoding unit (including the MPEG decoder) 13, and as a result, the video information of the program to be viewed can be acquired. Next, the control unit 14 sets the video information for the program to be viewed on the video conversion device 18, and as a result, the display device 19 broadcasts the program to be viewed on the screen 2 being viewed as shown in FIG. The video can be displayed.

  Next, when the program selection of the back program is started and the back program is selected (designated), the tuner is set to the tuner unit 11 that receives the digital broadcast signal based on the control from the control unit (CPU) 14. Is executed, and the selected back program frequency is subjected to channel selection and detection processing, and then a digital signal (for example, MPEG2-TS) obtained by subjecting the signal to digital demodulation and error correction processing is output (S101). .

  Next, the TS filtering setting for the TS (Transport Stream) separating device 12 for the back program selected (designated) based on the control from the control unit (CPU) 14 is executed and output from the tuner unit 11. The video signal of the back program (video PES or ES) is extracted from a plurality of transport packets of the program (S102).

  Next, the video signal of the back program obtained from the TS separator 12 is decoded (decoded) in the decoding unit (for example, MPEG decoder) 13 (S103), and as a result, the video information of the back program can be acquired in a maximum of 500 msec ( S104). Next, the control unit 14 sets video information for the back program in the video conversion device 18 (S105), and as a result, the display device 19 displays [Back Program Check] as shown in FIG. The broadcast video of the back program can be displayed after 500 msec on the sub-screen 3 in the screen 4 (S106).

  The video information (sequence header 20) of the back program displayed on the child screen 3 is also recorded in the storage device 15 (S107). Here, with respect to the back program displayed on the sub-screen 3, for example, by pressing a decision button arranged at the center of the selection button 161, the program being viewed is displayed using the sequence header 20 recorded in the storage device 15. The back program is displayed on the main screen 2 to be displayed. At the same time, the back program check screen 4 is deleted. Thus, if the video information (sequence header 20) of the back program displayed on the sub-screen 3 is recorded in the storage device 15, the back program is selected when the back program is selected as the program displayed on the main screen 2. The program can be quickly displayed on the main screen 2.

  By the way, since the video information may be changed by a commercial or program switching while the back program video is displayed on the sub-screen 3, each time the video information in the sequence header is changed, The sequence header is recorded again to update the recorded contents. Thus, the latest video information is always provided by the sub-screen 3.

  In addition, the sub-screen 3 can be displayed by distinguishing 16: 9/4: 3 depending on the broadcast source.

Moreover, the operation | movement about the subscreen 3 can be considered as follows.
(1) The sub-screen 3 is displayed about 2 seconds which is 500 msec or more after the back program information switching is completed. The reason for this is to give priority to being able to search (confirm) the back program information speedily, and conversely, it is not desirable to reduce the speed due to the time required for selecting the sub-screen.
(2) In FIGS. 5A, 5B, and 5C, the display area of the sub-screen 3 is fixed, and characters are not arranged in the sub-screen display area even when the sub-screen display is not performed.
(3) The program information display may be delayed from the sub-screen display because of scanning or the like.
(4) The display on the side panel of the sub-screen is the same as that displayed on a single screen.

  In other words, the side panel (with or without pan scan) is attached and displayed as it is.

  Letters (with pan scan) are displayed at 16: 9 with the top and bottom cut out.

  Next, <16: 9 sub-screen coordinates>, <4: 3 sub-screen coordinates>, and <OSD display area> will be described. <16: 9 child screen coordinates> (x, y, w, h) = (785,444,147,86), <4: 3 child screen coordinates> (x, y, w, h) = (823,444) 109, 86), <OSD (On Screen Display) display area> (x, y, w, h) = (0, 437, 960, 103).

[Second Embodiment]
Next, a second embodiment of the broadcast receiving apparatus according to the present invention will be described with reference to FIG. The second embodiment of the broadcast receiving apparatus according to the present invention is different from the first embodiment in that the video information of the broadcast video of the back program displayed on the sub-screen 3 is obtained as shown in FIG. It is in. That is, FIG. 6 shows a processing flow of the broadcast video of the back program displayed on the sub-screen 3. Step S100a shows channel selection for the sub-screen of the back program. Next, steps S101 to S103 are the same as those in FIG.

  In the case of the second embodiment, when the video information of the back program is MPEG-recorded, the control unit (CPU) 14 records the video information of the corresponding back program recorded in the storage device 15 in step S107 shown in FIG. Is recorded, and if there is, the video information of the back program to the sub-screen is acquired from the group unit (GOP 21 with the sequence header 20 immediately before) recorded in the storage device 15 (S109). If not, the video information of the back program on the sub-screen is acquired from an arbitrary group unit on the stream (GOP 21 with the sequence header 20 immediately before) (maximum 500 msec) (S104). Then, by setting the video information for the video information of the back program acquired in this way in step S105, it becomes possible to display the broadcast video of the back program on the sub-screen 3 in step S106.

  As described above, according to the second embodiment, when video information to be displayed on the back screen of the back program is recorded in the storage device 15 and the back program is selected, a maximum of 500 msec is selected. Broadcast video can be displayed on the sub-screen without waiting.

  DESCRIPTION OF SYMBOLS 1 ... Display screen, 2 ... Broadcast content screen currently being viewed, 3 ... Sub-screen displaying broadcast video in selected back program, 4 ... [Back program check] screen, 10, 11 ... Tuner section, DESCRIPTION OF SYMBOLS 12 ... TS (Transport Stream) separation device (demultiplexing device), 13 ... Decoding unit (including EPEG decoder), 14 ... Control unit (CPU), 15 ... Storage device, 16 ... Remote control device, 161 ... Back program selection button 162 ... Back program check button, 17 ... IR (Infrared) receiver (remote control receiver), 18 ... Video converter, 19 ... Display device, 20 ... Sequence header, 21 ... GOP (Group of Picture).

Claims (2)

In the broadcast receiving device,
A tuner to receive a digital broadcast of the program,
Storage means for storing information about the video;
When an instruction to display information related to a video other than the currently viewed program is given while viewing the program received by the tuner, the video of the currently viewed program received by the tuner is displayed. Displaying the information in the first area of the screen and acquiring the information from the storage means, and displaying the information related to the video other than the currently viewed program acquired from the storage means and the video other than the currently viewed program on the display screen A control unit to be displayed in the second area of
When the control unit performs an operation for switching the video other than the program being viewed when the information and the video other than the program being viewed are displayed in the second area ,
(A) processing for acquiring and displaying information about the video designated by the operation from the storage means;
(B) a process for processing and displaying a video other than the designated program being viewed;
By performing in parallel, the have display line and a switching asynchronously display change the program other than the video of the viewing information corresponding to the program other than the video being viewed, designated by the switching operation the A broadcast receiving apparatus, wherein after displaying information related to a video other than a program being viewed, a video other than the program being viewed is displayed with a delay . The broadcast receiving apparatus according to claim 1, wherein the content of information related to video other than the program being viewed includes a network name, a channel number, a broadcast time zone, and broadcast content .

Images