JP2019186832A - Broadcast receiver and broadcast reception method - Google Patents

Abstract

To provide a broadcast receiver and a broadcast reception method that can hide selection candidates that do not support voice output and display a voice switching selection screen that does not confuse users.SOLUTION: A broadcast receiver 1 includes a control unit 81 that extracts a first sound output enabled asset which can output voice by an internal voice device from a plurality of voice assets included in a broadcast signal, generates a selection candidate selected by a user's instruction input on the basis of the first sound output enabled asset, and causes a video display unit 75 to display the selection candidate.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a broadcast receiving apparatus and a broadcast receiving method.

  2. Description of the Related Art Conventionally, there is a broadcast receiving apparatus that receives broadcast signals by television broadcasting. The viewing content included in the broadcast signal may include audio assets having different formats and channels.

  For example, in the ultra-high-definition 4K / 8K advanced broadband satellite digital broadcasting scheduled to start practical broadcasting from December 2018, AAC1ch, AAC2ch, AAC5.1ch, AAC7.1ch, AAC22.2, ALS2ch, or , ALS5.1ch audio assets may be included.

  In the broadcast receiving apparatus, a selection candidate may be displayed on a sound switching selection screen, a desired sound asset may be selected by a user instruction input, and the selected sound may be output from a speaker. If a selection candidate that does not support audio output is displayed, the selection screen may be confusing to the user.

JP 2017-98607 A

  An object of the embodiment is to provide a broadcast receiving apparatus and a broadcast receiving method capable of displaying a selection screen for voice switching that does not confuse a user and hides selection candidates that do not support voice output.

  The broadcast receiving device according to the embodiment extracts a first sound-capable asset that can be output by an internal audio device from a plurality of audio assets included in the broadcast signal, and the first sound-capable asset. A control unit that generates selection candidates to be selected based on a user instruction input and displays the selection candidates on a video display unit.

It is a block diagram which shows an example of a structure of the broadcast receiving apparatus in connection with embodiment. It is a table | surface which shows the audio | voice asset linked | related with the audio | voice mode of the broadcast signal which the broadcast receiver which concerns on embodiment receives, and an audio | voice mode. It is a figure which shows an example of the support information in the broadcast receiving apparatus in connection with embodiment. It is a flowchart which shows an example of the flow of the selection screen output process in the broadcast receiving apparatus in connection with embodiment. It is a figure which shows an example of the selection screen of the audio | voice switching in the broadcast receiving apparatus in connection with embodiment. It is a figure which shows an example of the selection screen of the audio | voice switching in the broadcast receiving apparatus in connection with embodiment. It is a flowchart which shows an example of the flow of the selection display switching display process in the broadcast receiving apparatus in connection with the embodiment. It is a figure which shows an example of the display screen in the broadcast receiving apparatus in connection with embodiment. It is a figure which shows an example of the display screen in the broadcast receiving apparatus in connection with embodiment.

(Embodiment)
Hereinafter, embodiments will be described with reference to the drawings.

(Constitution)
FIG. 1 is a block diagram illustrating an example of a configuration of a broadcast receiving apparatus 1 according to the embodiment.

  As shown in FIG. 1, the broadcast receiving apparatus 1 includes a broadcast receiving unit 11, a CAS module 21, a signal processing unit 31, an operation unit 41, an instruction signal receiving unit 51, an interface (hereinafter referred to as “I / F”) 61, a video. An audio output unit 71 and a control unit 81 are provided. A sound system 101 that is an external audio device can be connected to the interface 61.

  The broadcast receiving unit 11 is a broadcast signal such as terrestrial digital television broadcast (terrestrial digital broadcast), BS / advanced narrowband CS / advanced wideband CS digital broadcast (BS broadcast, CS broadcast), advanced wideband BS broadcast, and advanced wideband CS broadcast. The video signal, audio signal and control information of the channel desired by the user are extracted from the broadcast signal and output to the signal processing unit 31. The broadcast receiving unit 11 includes an input terminal 12, a tuner 13, and a demodulator 14.

  The input terminal 12 is connected to the antenna Ant, and supplies a broadcast signal received by the antenna Ant to the tuner 13. Although one antenna Ant is schematically shown in FIG. 1, a plurality of antennas Ant may be provided according to the broadcast signal to be received.

  One or more tuners 13 are provided in the broadcast receiving unit 11. The tuner 13 tunes the channel desired by the user from the broadcast signal under the control of the control unit 81, and outputs the selected broadcast signal to the demodulator 14.

  The demodulator 14 demodulates the broadcast signal input from the tuner 13 in the advanced broadband BS broadcast and the advanced broadband CS broadcast, converts the demodulated signal into a TLV stream (Type Length Value), and outputs the TLV stream to the signal processing unit 31.

  The demodulator 14 converts a broadcast signal into a transport stream by demodulation processing in terrestrial digital broadcasting, BS broadcasting, and CS broadcasting, and outputs the transport stream to the signal processing unit 31. The demodulator 14 demodulates with a demodulation method corresponding to the modulation method at the time of transmission.

  The CAS module 21 is a circuit that outputs key information for descrambling the TLV stream to the signal processing unit 31 under the control of the control unit 81.

  The signal processing unit 31 is a circuit that performs descrambling of the TLV stream and TLV / MMT separation processing to acquire various types of information.

  More specifically, the signal processing unit 31 descrambles the TLV stream input from the demodulator 14 based on the key information input from the CAS module 21. Subsequently, based on the descrambled TLV stream, the signal processing unit 31 separates the video signal, the audio signal, the caption, the character superimposition, the application data, and the control information by the TLV / MMT separation process. The control information also includes an MH-voice component descriptor on an MPT (MMT Packaging Table) in MMT-SI (MMT-System Information). The signal processing unit 31 outputs the caption, the character superimposition, application data, and control information to the control unit 81.

  FIG. 2 is a table showing an audio mode of a broadcast signal received by the broadcast receiving device 1 and an audio asset associated with the audio mode according to the embodiment. In FIG. 2, the main voice is represented by a double circle.

  Audio assets vary depending on the audio format and channel. In FIG. 2, “AAC” indicates the MPEG-4 AAC audio format, and “ALS” indicates the MPEG-4 ALS audio format. In FIG. 2, “ch” indicates a channel.

  As shown in FIG. 2, the broadcast signal may include a plurality of simulcast audio assets according to the audio mode. The audio mode of the broadcast signal may change depending on the broadcast program.

  The signal processing unit 31 decodes the high-efficiency encoded video signal and audio signal and outputs them to the video / audio output unit 71. When a plurality of audio assets are included in the audio signal, the signal processing unit 31 decodes the audio signal of the audio asset according to the instruction of the control unit 81 from the plurality of audio assets and outputs the decoded audio signal to the video / audio output unit 71 To do.

  When the sound system 101 is connected, the signal processing unit 31 outputs the audio signal of the audio asset according to the instruction of the control unit 81 from the plurality of audio assets to the sound system 101.

  The operation unit 41 is provided in the broadcast receiving apparatus 1 and is configured so that various instructions such as power on / off and channel switching can be input by a switch, a push button, a button image, or the like. When there is an instruction input, the operation unit 41 outputs an instruction signal to the control unit 81.

  The instruction signal receiving unit 51 is a circuit that receives an instruction signal from the remote controller Rc. When there is an instruction input from the user, the remote controller Rc outputs an instruction signal to the instruction signal receiving unit 51 by infrared rays, for example. When receiving an input from the remote controller Rc, the instruction signal receiving unit 51 outputs an instruction signal to the control unit 81.

  The I / F 61 is a circuit for connecting an external device. The I / F 61 is connected to the control unit 81, and inputs / outputs information to / from an external device connected to the I / F 61 under the control of the control unit 81. The I / F 61 includes a card I / F 62, a communication I / F 63, a USB I / F 64, and an HDMI I / F 65.

  The card I / F 62 has a card holder and reads information from a card such as a CAS card Cd held by the card holder.

  The communication I / F 63 is connected to a network connection terminal to which a communication cable such as a telephone line and a LAN cable can be connected, and communicates with the server Sv via a network such as the Internet. Note that the communication I / F 63 is not limited to wired communication, and may be configured to be capable of wireless communication.

  The USB I / F 64 connects an external device by USB connection. For example, an external storage device Sd is connected to the USB I / F 64. An external device such as a memory card (not shown) may be connected to the USB I / F 64.

  The HDMI I / F 65 connects an external device through an HDMI (registered trademark) connection. For example, the recording / playback device Rd, the sound system 101, or a video output device (not shown) is connected to the HDMI I / F 65.

  The video / audio output unit 71 is a circuit that outputs video content based on the video signal and the audio signal. The video / audio output unit 71 includes an OSD signal generation unit 72, a graphic processing unit 73, a video processing unit 74, a video display unit 75, an audio processing unit 76, and a speaker 77 which is an internal audio device.

  The OSD signal generation unit 72 generates character information to be superimposed on the video signal under the control of the control unit 81 and outputs the character information to the graphic processing unit 73.

  The graphic processing unit 73 synthesizes the video signal input from the signal processing unit 31 and the graphic generated by the character information, data broadcast, or the like input from the OSD signal generation unit 72, and the video signal is combined with the video processing unit 74. Output to.

  The video processing unit 74 outputs a display screen to the video display unit 75 based on the video signal input from the graphic processing unit 73.

  The video display unit 75 includes a display panel such as an LCD panel or an OLED panel, and displays the display screen input from the video processing unit 74.

  The audio processing unit 76 performs processing such as sound quality enhancement processing and amplification processing on the audio signal input from the signal processing unit 31 and the control unit 81, and then outputs the processed signal to the speaker 77.

  The speaker 77 outputs sound according to the sound signal input from the sound processing unit 76.

  The control unit 81 is a circuit that controls each unit in the broadcast receiving apparatus 1. The control unit 81 includes a processor 82 and a memory 83. The function of the control unit 81 is realized by the processor 82 acquiring and executing various programs and data stored in the memory 83. The control unit 81 can also execute various applications stored in the memory 83. The control unit 81 may be further provided with an internal storage device such as an HDD.

  The memory 83 includes a readable / writable storage element such as NVRAM or flash ROM. The memory 83 stores various application programs executed in the broadcast receiving apparatus 1.

  In addition, in the memory 83, in addition to information and programs for controlling each unit in the broadcast receiving apparatus 1, the programs of the selection screen output unit P1 and the switching display unit P2, the support information T1, and the audio assets are associated with each other. The preset asset information for display is also stored.

  FIG. 3 is a diagram illustrating an example of support information T1 in the broadcast receiving device 1 according to the embodiment. The support information T1 includes information on audio assets that the broadcast receiving apparatus 1 supports audio output. FIG. 3 is an example of the support information T1 indicating that the audio output of the audio assets “AAC2ch” and “AAC5.1ch” is supported.

  The selection screen output unit P1 extracts a soundable asset that supports sound output from the sound assets included in the broadcast signal, and outputs a sound switching selection screen according to the soundable asset. Perform screen output processing. The selection screen output unit P1 causes the video display unit 75 to display a selection screen in which selection candidates are listed.

  The switching display unit P2 extracts a soundable asset that supports sound output from the audio assets included in the broadcast signal, and performs a switching display process on the sound switching selection screen according to the soundable asset. Do. The switching display unit P2 causes the video display unit 75 to display a selection screen in which selection candidates are cyclically switched in response to a user instruction input.

  The sound-capable asset is a voice asset that can be output as a voice and is a candidate for a user's selection input, extracted from the voice assets included in the broadcast signal. The sound-soundable asset has a first sound-soundable asset and a second sound-soundable asset. In the description of the embodiment, when the first sound-capable asset and / or the second sound-capable asset are indicated, they are referred to as sound-capable assets.

  The first sound-capable asset is an audio asset that the broadcast receiving apparatus 1 supports audio output.

  The second sound output capable asset is an audio asset that is supported by the sound system 101 that is an external audio device.

  The sound system 101 is not particularly limited, and is configured by an audio device such as an AV amplifier or an external speaker, for example. The sound system 101 is controlled by the control unit 81 based on, for example, CEC (Consumer Electronics Control) technology. The sound system 101 may be controlled by the control unit 81 based on other technology. The sound system 101 includes a device information storage unit 102, a decoder 103, and an external speaker 104.

  The device information storage unit 102 includes a storage element such as a ROM, and stores support information T2 indicating identification information of the sound system 101 and sound assets supported by the sound system 101. The device information storage unit 102 may be an EDIDROM that stores EDID (Extended Display Identification Data) including support information T2. When the sound system 101 is connected to the HDMI I / F 65, the control unit 81 can read the identification information of the sound system 101 and supported audio assets from the device information storage unit 102.

  The decoder 103 decodes the audio signal of the audio asset input from the signal processing unit 31 via the HDMI I / F 65 and outputs it to the external speaker 104.

  The external speaker 104 outputs sound according to the sound signal input from the decoder 103.

  That is, the broadcast receiving apparatus 1 extracts the first sound-capable asset that can be output by the internal audio apparatus from the plurality of sound assets included in the broadcast signal, and sets the first sound-capable asset as the first sound-capable asset. Based on the instruction input by the user, a selection candidate is generated, and the selection candidate is displayed on the video display unit 75.

  More specifically, the memory 83 stores support information T1 including information on audio assets that can be output from the speaker 77, and the control unit 81 selects support information T1 from the audio assets included in the broadcast signal. Is extracted as the first sound-capable asset.

  In addition, the broadcast receiving apparatus 1 extracts the first soundable asset that can be output by the internal audio apparatus from the audio assets included in the broadcast signal, and from the audio assets included in the broadcast signal. Then, the second sound-capable asset that can be output by the external audio device is extracted, and selection candidates are generated based on the first sound-capable asset and the second sound-capable asset.

  The broadcast receiving apparatus 1 also displays a selection candidate including asset information corresponding to the sound-capable asset and audio device information of the internal audio device and / or the external audio device that outputs the sound of the sound-capable asset. This is displayed on the part 75.

  Moreover, the broadcast receiving apparatus 1 will switch to the audio | voice output of the audio | voice asset according to a selection candidate, if any of the selection candidates is selected by a user's instruction input.

(Operation)
The selection screen output process of the broadcast receiving apparatus 1 will be described.

  FIG. 4 is a flowchart illustrating an example of the flow of the selection screen output process in the broadcast receiving apparatus 1 according to the embodiment. 5 and 6 are diagrams illustrating an example of a voice switching selection screen in the broadcast receiving apparatus 1 according to the embodiment.

  When the broadcast receiving device 1 is activated, the control unit 81 reads the program of the selection screen output unit P1 from the memory 83 and executes it.

  An audio asset included in the audio signal is detected (S1). The signal processing unit 31 separates the audio signal from the TLV stream or the transport stream. The control unit 81 detects the audio format and channel of the audio asset, for example, based on the MH-audio component descriptor, other control information, or the audio signal included in the audio signal separated by the signal processing unit 31. To do.

  The support information T1 of the broadcast receiving apparatus 1 is read from the memory 83 (S2). The support information T1 stored in the memory 83 is read by the control unit 81.

  It is determined whether or not the sound system 101 is connected (S3). The control unit 81 detects the presence / absence of connection of the sound system 101 from the HDMI I / F 65. When the sound system 101 is connected (S3: YES), the process proceeds to S4. On the other hand, when the sound system 101 is not connected (S3: NO), the process proceeds to S5.

  Support information T2 is read from the sound system 101 (S4). The control unit 81 reads the support information T2 of the sound system 101 from the device information storage unit 102 via the HDMI I / F 65.

  Out-of-sound assets are extracted from the audio assets included in the audio signal (S5). The control unit 81 extracts, from the audio assets detected in S1, the audio asset indicated as supported by the support information T1 as the first sound-capable asset.

  When the sound system 101 is connected, the control unit 81 extracts, from the audio assets detected in S1, the audio asset indicated as supported by the support information T2 as the second sound-capable asset. To do.

  A selection candidate associated with the soundable asset is generated (S6). The control unit 81 reads asset information associated with the soundable asset from the memory 83. For example, the control unit 81 associates a sound number set like sound n (n is a natural number) with asset information, and generates a selection candidate.

  Moreover, the control part 81 may add the audio | voice apparatus information which outputs an audio | voice to a selection candidate. The audio device information is, for example, information indicating the broadcast receiving device 1 if it is a first sound-capable asset, and information indicating the sound system 101 if it is a second sound-capable asset. The audio device information may be stored in the memory 83 in advance, and read from the memory 83 according to the identification information read from the device information storage unit 102 by the control unit 81.

  An instruction to display the selection screen is given (S7). The control unit 81 outputs the selection candidate generated in S6 to the OSD signal generation unit 72, and issues a selection screen display instruction.

  The OSD signal generator 72 generates a selection screen in response to an instruction from the controller 81 in S7. The OSD signal generation unit 72 outputs a selection screen to the video display unit 75 via the graphic processing unit 73 and the video processing unit 74. The video display unit 75 displays a selection screen.

  For example, when the audio mode of the broadcast signal is “AAC22.2ch (2) 2ch + 5ch” (M1 in FIG. 2), the control unit 81 determines the audio assets “AAC2ch”, “AAC5.1ch”, “AAC22. 2ch "is detected (S1). The control unit 81 reads support information T1 indicating that the audio assets “AAC2ch” and “AAC5.1ch” are supported from the memory 83 (S2). When the sound system 101 is not connected, the control unit 81 extracts the first sound capable assets “AAC2ch” and “AAC5.1ch” based on the processing results of S1 and S2 (S3: NO, S5). ). Asset information “stereo (2ch)” associated with “AAC2ch” and asset information “surround (5.1ch)” associated with “AAC5.1ch” are read from the memory 83. The control unit 81 associates the audio number with the asset information, and generates a selection candidate including “audio 1”, “stereo (2ch)”, “audio 2”, and “surround (5.1ch)” (S6). ). The control unit 81 outputs selection candidates and instructs the OSD signal generation unit 72 to display a selection screen (S7). As shown in FIG. 5, the OSD signal generation unit 72 arranges selection candidates input from the control unit 81 on the selection screen G1.

  The user moves the selection area A via the remote controller Rc or the operation unit 41, and inputs an instruction to select a desired selection candidate. When the user inputs an instruction, the control unit 81 instructs the signal processing unit 31 to decode the audio signal of the audio asset corresponding to the selection candidate input by the instruction, and causes the audio processing unit 76 to output it. The sound processing unit 76 outputs sound from the speaker 77.

  For example, when a broadcast signal similar to that described above is received and support information T1 similar to that described above is included, sound that supports audio assets “AAC2ch”, “AAC5.1ch”, and “AAC22.2ch” is supported. When the system 101 is connected to the HDMI I / F 65, the control unit 81 reads the support information T2 from the sound system 101 (the description of S1 and S2 is omitted, S3: YES, S4). Based on the support information T1 and T2, the control unit 81 includes the first sound-capable assets “AAC2ch” and “AAC5.1ch” and the second sound-capable assets “AAC2ch”, “AAC5.1ch”, “ “AAC 22.2ch” is extracted (S5). Asset information “stereo (2ch)” associated with “AAC2ch”, “surround (5.1ch)” associated with “AAC5.1ch”, and asset information associated with “AAC22.2ch” “Surround (22.2ch)” is read from the memory 83. Furthermore, the control unit 81 determines the audio device information of “AAC2ch” and “AAC5.1ch” included in both the first sound-capable asset and the second sound-capable asset as “TV or Speaker”. Also, the audio device information of “AAC22.2ch” that is not included in the first sound-capable asset and is included in the second sound-capable asset is determined to be “Speaker Only”. The control unit 81 associates the asset information and the audio device information with the audio number, and “audio 1”, “AAC 2ch”, “TV or Speaker”, “audio 2”, “AAC 5.1ch”, and “TV or Speaker”. Then, a selection candidate consisting of “voice 3”, “AAC 22.2ch”, and “Speaker Only” is generated (S6). The control unit 81 outputs selection candidates and instructs the OSD signal generation unit 72 to display a selection screen (S7). As illustrated in FIG. 6, the OSD signal generation unit 72 arranges the selection candidates input from the control unit 81 on the selection screen G2.

  When the audio device information of the selection candidate instructed by the user is “Speaker Only”, the control unit 81 outputs the audio signal of the audio asset corresponding to the selection candidate to the sound system 101.

  When the audio device information of the selection candidate instructed by the user is “TV or Speaker”, the control unit 81 instructs the signal processing unit 31 to decode the audio signal of the audio asset corresponding to the selection candidate, and the speaker 77. And the audio signal of the audio asset corresponding to the selection candidate is output to the sound system 101. In addition, according to a user's instruction input, sound output may be performed from both the speaker 77 and the sound system 101, or sound output may be performed from either the speaker 77 or the sound system 101.

  Next, the selection display switching process of the broadcast receiving apparatus 1 will be described.

  FIG. 7 is a flowchart illustrating an example of a selection screen switching display process in the broadcast receiving apparatus 1 according to the embodiment. 8 and 9 are diagrams illustrating examples of display screens G3 and G4 in the broadcast receiving apparatus 1 according to the embodiment.

  In the switching display process, selection candidates are cyclically switched and displayed in response to an instruction input from the remote controller Rc or the operation unit 41.

  When the broadcast receiving device 1 is activated, the control unit 81 acquires a selection candidate through the processes of S1 to S6 of the selection screen output unit P1. In addition, the control unit 81 reads the program of the switching display unit P2 from the memory 83 and executes it.

  It is determined whether there is a voice switching instruction input (S11). The controller 81 determines whether or not there is a user voice switching instruction input. The user's instruction input is, for example, pressing of a voice switching button of the remote controller Rc. When there is no instruction input (S11: NO), the process of S11 is repeated. When there is an instruction input (S11: YES), the process proceeds to S12.

  One counter is added (S12). The control unit 81 adds one counter.

  It is determined whether or not the counter exceeds the number of selection candidates (S13). When the counter exceeds the number of selection candidates (S13: YES), the process proceeds to S14. On the other hand, when the counter does not exceed the number of selection candidates (S13: NO), the process proceeds to S15.

  The counter is returned to 1 (S14). The control unit 81 returns the counter to 1.

  Selection candidates associated with the counter are displayed (S15). In S15, for example, if the counter is 1, the selection candidate associated with the counter is displayed on the video display unit 75, such as “Voice 1” selection candidate, and if the counter is 2, the “Voice 2” selection candidate. Display. After S15, the process returns to S11.

  In accordance with the repetition of S11 to S15, the asset information display is cyclically switched, and the audio output is also switched in accordance with the switching of the selection candidates.

  For example, as in FIG. 5, when there are two selection candidates and the user inputs an instruction, the control unit 81 adds one counter to 1 (S11, S12). As shown in the display screen G3 of FIG. 8, the control unit 81 displays “audio 1” and “stereo (2ch)” associated with the counter on the video display unit 75 (S13: NO, S15). The control unit 81 instructs the signal processing unit 31 to switch the audio output. Further, when the user inputs an instruction, the control unit 81 adds one counter to 2 to switch the display to “voice 2” and “surround (5.1 ch)”, and also switches the voice output. Further, when the user inputs a voice switching instruction, the counter becomes 3 and exceeds the number of selection candidates (S11: YES, S12, S13: YES), the counter returns to 1 (S14), and the control unit 81 The display is switched between “audio 1” and “stereo (2ch)”, and the audio output is also switched.

  For example, as in FIG. 6, when there are three assets that can output sound, when the user inputs an instruction, “audio 1”, “stereo (2ch)”, “TV or Speaker” are displayed, and the audio output is also turned off. It is changed (display screen G4 in FIG. 9). Further, when the user inputs an instruction, the display is switched to “voice 2”, “surround (5.1ch)”, and “TV or Speaker”, and the voice output is also switched. Further, when the user inputs a voice switching instruction, the display is switched to “voice 3”, “surround (22.2ch)”, and “Speaker Only”, and the voice output is also switched.

  That is, the broadcast receiving method extracts a first sound-capable asset that can be output by an internal audio device from a plurality of audio assets included in the broadcast signal, and based on the first sound-capable asset. Then, a selection candidate selected by the user's instruction input is generated, and the selection candidate is displayed on the video display unit 75.

  According to the above-described embodiment, the broadcast receiving apparatus 1 can display a selection screen for voice switching that does not confuse the user by hiding selection candidates that do not support voice output.

  In the embodiment, the example in which the first and second sound-capable assets are extracted has been described. However, when other external audio devices are connected, the audio assets supported by the other external audio devices are described. A third sound-capable asset may be extracted according to

  In the embodiment, examples of the audio device information “TV or Speaker” and “Speaker Only” have been described. However, “TV Only” indicating that audio is output from the broadcast receiving device 1 and no audio is output from the sound system 101. There may be.

  Also, the audio device information is not limited to “TV or Speaker”, “Speaker Only”, and “TV Only”, but may be other audio device information.

  In the embodiment, the audio device information is displayed by a character string such as “TV or Speaker”, but may be displayed by a character string indicating the name or model of the connected audio device, or by an icon. May be.

  In the embodiment, the example in which the audio device information is displayed by the connection of the sound system 101 that is an audio device has been described. When the connected audio device is removed, the audio device information may be set to display or not display. In addition, the user may be able to input an instruction to set whether to display or hide the audio device information.

  In the embodiment, the example in which the sound system 101 is connected via the HDMI I / F 65 has been described, but the present invention is not limited to this. The sound system 101 may be connected to the broadcast receiving apparatus 1 by other connection methods.

  In the embodiment, the function of each processing unit of the control unit 81 is realized by executing a program. However, part or all of the functions of each processing unit may be realized by a circuit.

  Although embodiments of the present invention have been described, these embodiments are shown by way of example and are not intended to limit the scope of the present invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Broadcast receiving apparatus, 11 ... Broadcast receiving part, 12 ... Input terminal, 13 ... Tuner, 14 ... Demodulator, 21 ... CAS module, 31 ... Signal processing part , 41 ... operation unit, 51 ... instruction signal receiving unit, 61 ... interface, 62 ... card I / F, 63 ... communication I / F, 64 ... USB I / F, 65 ... HDMI I / F, 71 ... Video / audio output unit, 72 ... OSD signal generation unit, 73 ... Graphic processing unit, 74 ... Video processing unit, 75 ... Video display unit 76 ... Sound processing unit, 77 ... Speaker, 81 ... Control unit, 82 ... Processor, 83 ... Memory, 101 ... Sound system, 102 ... Device information storage unit, 103 ... Decoder, 104 ... External speaker, A ... Selection area, Ant ... antenna, Cd ... CAS card, G1, G2 ... selection screen, G3, G4 ... display screen, P1 ... selection screen output unit, P2 ... switching display unit , Rc: Remote controller, Rd: Recording / playback device, Sd: External storage device, Sv: Server, T1, T2: Support information

Claims (8)

  A first sound-capable asset that can be output by an internal audio device is extracted from a plurality of audio assets included in the broadcast signal, and a user inputs an instruction based on the first sound-capable asset. A broadcast receiving apparatus having a control unit that generates selection candidates to be selected and displays the selection candidates on a video display unit. The controller is
Extracting the first soundable asset that can be output by the internal audio device from the audio asset included in the broadcast signal;
Extracting a second sound-capable asset that can be output by an external audio device from the audio asset included in the broadcast signal;
Generating the selection candidate based on the first soundable asset and the second soundable asset;
The broadcast receiving apparatus according to claim 1. Have memory,
The memory stores support information including information on the audio asset that can be output from the internal audio device;
The control unit extracts the audio asset indicated to be supported by the support information from the audio asset included in the broadcast signal as the first sound-capable asset.
The broadcast receiving apparatus according to claim 1.   The control unit includes the selection candidate including asset information corresponding to the sound-capable asset and the sound device information of the internal sound device and / or the external sound device that outputs sound of the sound-capable asset. The broadcast receiving apparatus according to claim 2, wherein the broadcast receiving apparatus is displayed on the video display unit.   The broadcast receiving apparatus according to claim 1, wherein the control unit causes the video display unit to display a selection screen in which the selection candidates are displayed in a list format.   The broadcast receiving apparatus according to claim 1, wherein the control unit causes the video display unit to display a selection screen in which the selection candidate switches cyclically in response to an instruction input by the user.   The broadcast receiving apparatus according to claim 1, wherein when one of the selection candidates is selected by an instruction input from the user, the control unit switches to audio output of the audio asset corresponding to the selection candidate. Extracting a first soundable asset that can be output by an internal audio device from a plurality of audio assets included in the broadcast signal;
Generating a selection candidate to be selected by an instruction input by a user based on the first soundable asset;
Displaying the selection candidate on a video display unit;
Broadcast receiving method.

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