JP6526892B2 - Broadcast transmitter and broadcast transmission method - Google Patents

Description

  The present invention relates to a broadcast transmission apparatus and a broadcast transmission method.

  MPEG4-AAC (Moving Picture Experts Group 4-Advanced Audio Coding) (1ch, 2ch, 5.1ch, 7.1ch, 22.2ch) as a profile of Audio Stream in a digital television broadcasting system in advanced BS / highband CS broadcast. Adoption of MPEG4 ALS (Moving Picture Experts Group 4-Audio Lossless Coding) (2ch, 5.1ch) is planned. As a means for outputting these Audio Streams from the receiver to an external audio device (including an AV amplifier, a sound bar, etc.), an optical cable / coaxial cable compliant with the S / PDIF (Sony Philips Digital Interface) standard or HDMI ( It becomes transmission by the HDMI cable standardized by (registered trademark) -Forum (High-Definition Multimedia Interface-Forum). In either case, the transmission system of signals is standardized by IEC61937.

  However, the bit rate of Audio Stream that can be transmitted by the current S / PDIF standard is up to about 1.5 Mbps, and in the case of MPEG4-AAC, transmission can be performed by the current S / PDIF standard up to 7.1 ch. However, with the 22.2 ch, the bit rate is too low to transmit. For this reason, the IEC 61937 has been revised, and studies are underway to double the clock frequency during transmission to extend the transmission rate to about 3 Mbps. Furthermore, in the case of 5.1ch of MPEG4-ALS, since the maximum bit rate of Stream is about 7.3 Mbps, studies are also underway to support a transmission clock frequency up to 8x so that it can be transmitted.

ARIB STD-B 63 1.1 version revised on March 17, 2015, Radio Industries Association of Japan ARIB STD-B60 1.0 version July 31, 2014 formulated by the media transport method standard by MMT in digital broadcasting, The Japan Radio Industry Association

  By the way, when the double mode and the double mode of the transmission clock are defined in the above-mentioned IEC 61937, a broadcast receiving apparatus and an audio device capable of transmitting up to MPEG4-ALS 5.1 ch can be manufactured according to the standard. However, in order to operate the transmission clock at 2 × speed or 8 × speed, it is necessary to adopt a dedicated part or the like, which increases the cost of the product.

  Also, in the actual broadcasting, considering that most of the audio is MPEG4-AAC 2ch or 5.1ch, in the case of cost-effective audio equipment, up to 1.5 Mbps equivalent to the conventional one up to 1.5 Mbps can be supported. It is desirable that the distinction be made such that double-speed or 8-fold speed is supported only for high-end models that support MPEG4-AAC 22.2 ch or MPEG4-ALS. However, when an audio device is connected to the receiving device by an optical cable or coaxial cable, the means for the receiving device to know how many times the connected audio device supports (which profile corresponds to) Absent. Therefore, unless the receiver performs some setting by the user operation, the double-speed mode audio is output to the audio device not supporting the double-speed mode audio, and there is a problem that no sound is output during a certain broadcast program. It will occur.

  That is, in a broadcast receiving apparatus that receives a broadcast in which the first audio signal and the second audio signal are selectively transmitted, and outputs the received audio signal to an externally connected audio device, the broadcast receiving device with the externally connected audio device Between the first transmission clock frequency and the second transmission clock frequency as the transmission clock frequency of the audio signal transmission between them, and the first audio signal can be transmitted at both the first transmission clock frequency and the second transmission clock frequency If the second audio signal can be transmitted only at the second transmission clock frequency, the audio signal is output at the second transmission clock frequency to the audio device not compatible with the second transmission clock frequency. The problem is that there is no sound.

  In addition, since a plurality of voice modes are simultaneously transmitted and can be arbitrarily selected on the receiving side, it is desirable to identify and display the voice modes to the user.

  The purpose of this embodiment is to use the first transmission clock frequency and the second transmission clock frequency as the transmission clock frequency of audio signal transmission to and from the externally connected audio device, and the first audio signal is the first transmission. Suitable for the corresponding transmission clock frequency of the connected audio device, if it can be transmitted at both the clock frequency and the second transmission clock frequency and the second audio signal can be transmitted only at the second transmission clock frequency An object of the present invention is to provide a broadcast transmission apparatus and a broadcast transmission method capable of outputting a voice signal received in a form and further capable of identifying and displaying a voice mode to a user.

  The embodiment has the first transmission clock frequency and the second transmission clock frequency as the transmission clock frequency of the audio signal transmission, and the first audio signal has both the first transmission clock frequency and the second transmission clock frequency. When it is possible to transmit and the second audio signal can be transmitted only with the second transmission clock frequency, the first audio signal or the second audio signal is a section of common data table information. It is a broadcast transmission apparatus used for a broadcast system which is multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification in a size larger than that. The broadcast transmitting apparatus modularizes the logo data for each logo identification and logo type, distributes the modularized logo data to a plurality of sections of the common data table information, and the logo data of the logo data is distributed. Logo data distribution information indicating correspondence between types and sections to be distributed is defined and inserted into the logo data distribution descriptor of the common data table information, and logo management information including logo identification of the logo data and the type of logo The logo transmission description information is generated from the above and inserted into the logo transmission descriptor of the service description table information, and the common data table information and the service description table information are included in the first audio signal or the second audio signal. It multiplexes to a broadcast signal and sends it out.

FIG. 1 is a block diagram showing the configuration of a broadcast reception apparatus in advanced BS / high-bandwidth CS broadcasting according to a first embodiment. FIG. 2 is a block diagram for explaining switching of an audio profile when the broadcast receiving apparatus shown in FIG. 1 and an AV amplifier are connected. The figure which shows operation | movement at the time of receiving the broadcast which an audio | voice asset (audio | voice mode) changes from AAC 2ch to ALS 2ch in the broadcast receiving apparatus and external AV amplifier in a conventional system. The figure which shows operation | movement at the time of receiving the broadcast which audio | voice mode changes from MPEG4-AAC 2ch to MPEG4-AAC 5.1ch in the broadcast receiving apparatus and external AV amplifier in a conventional system. The figure which shows operation | movement at the time of receiving the broadcast in which the audio mode changes from MPEG4-AAC 2ch to MPEG4-AAC 22.2ch in the broadcast receiving apparatus and external AV amplifier in a conventional system. FIG. 7 is a diagram showing an operation when receiving a broadcast that changes from AAC 2 ch to AAC 22.2 ch when the profile is in the B connection mode in the broadcast receiving apparatus shown in FIG. 1. FIG. 7 is a diagram showing an operation when receiving a broadcast that changes from AAC 2 ch to AAC 22.2 ch when the profile is in the A connection mode in the broadcast receiving apparatus shown in FIG. 1. The flowchart for demonstrating the prior mode setting of a profile in the broadcast receiving apparatus shown in FIG. The flowchart for demonstrating the switching process at the time of broadcast reception in the broadcast receiving apparatus shown in FIG. FIG. 7 is a block diagram showing the configuration of a broadcasting transmission device of a digital television broadcasting system according to a second embodiment. The figure for demonstrating the area | region which stores the process result of the logo data modularization part of the transmitter shown in FIG. The figure which shows the data structure of CDT used in the CDT sectioning part of the transmitter shown in FIG. The figure which shows the data structure of the logo data distribution descriptor of the transmitter shown in FIG. FIG. 7 is a block diagram showing the configuration of a broadcast receiving apparatus of a digital television broadcast system according to a second embodiment. FIG. 15 is a flowchart for explaining processing operation regarding logo data of the receiving device shown in FIG. 14; FIG. FIG. 13 is a block diagram showing the configuration of a broadcast transmission device of the digital television broadcast system of the third embodiment and the fourth embodiment when applied to TLV / MMT in the second embodiment. The figure which shows the data structure which expanded MH-logo transmission descriptor in the transmitter shown in FIG. The flowchart for demonstrating the processing operation of the transmission device for broadcasting of the digital television broadcasting system which concerns on 4th Embodiment. FIG. 19 is a view showing a data structure regarding data_module_byte of the processing operation shown in FIG. 18; FIG. 19 is a view showing another data structure regarding data_module_byte of the processing operation shown in FIG. 18;

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

First Embodiment
The broadcast receiving apparatus according to the first embodiment will be described below with reference to FIGS. 1 to 9.

  FIG. 1 is a block diagram showing the configuration of a broadcast receiving apparatus 1 in advanced BS / altitude wideband CS broadcasting as a first embodiment. This broadcast receiving apparatus receives a received signal of a broadcast wave obtained by a receiving antenna (not shown), and demodulates the TLV stream by performing demodulation processing and error correction decoding processing in the demodulation section 11, and the TLV / MMT separation section 12 Separate the video stream and the audio stream from this TLV stream.

  The TLV / MMT separation unit 12 separates TLV (Type Length Value) packets and MMT (MPEG Media Transport) packets from the audio stream and sends them to the audio selection control unit 13 respectively. The audio selection control unit 13 selects one asset to be applied to the AV amplifier 2 of the output destination from the plurality of audio assets based on the TLV information of the TLV packet and the MMT information of the MMT packet, Output to each external output system.

  In the internal reproduction system, the decoder 14 decodes the selected audio asset, and if the decoded output is 5.1 ch PCM data, the down mixer (DMIX) unit 15 converts it into 2 ch PCM data and sends it to the switching unit 16 If it is PCM data of 2ch, it will send to the switching part 16 directly. The switching unit 16 selects either 2ch from the down mixer unit 15 at the input or 2ch directly supplied from the decoder 14 based on the instruction from the audio selection control unit 13 and outputs at the output an internal reproduction system, an external Select one of the output systems.

  The PCM data of 2ch selected and output to the internal reproduction system by the switching unit 16 is converted to an analog audio signal by a DAC (Digital-Analog Converter) 17 and sent to an audio output unit 18 by an internal amplifier and a speaker to reproduce sound. Be done. Also, the PCM data of 2ch selected and output to the external output system is sent to the external output interface (I / F) 19. The external output interface 19 includes an HDMI output terminal, an S / PDIF optical digital audio output terminal, and an S / PDIF coaxial digital audio output terminal, and the external AV amplifier 2 and the HDMI cable, the S / PDIF optical digital cable, and the S / PDIF optical digital cable respectively. The audio asset selected by the audio selection control unit 13 is output to the externally connected AV amplifier 2 which can be connected by a PDIF coaxial digital cable. When the corresponding audio mode information of the externally connected AV amplifier 2 is not obtained, the PCM data of 2 ch from the switching unit 16 is selected and output to the AV amplifier 2.

  Here, when the corresponding audio mode information is obtained when the AV amplifier 2 is connected, the external output interface 19 sends the information to the audio selection control unit 13. When the corresponding audio mode information of the connected AV amplifier 2 is obtained from the external output interface 18, the audio selection control unit 13 registers the information, and when an audio asset of the corresponding audio mode arrives. , Switch to output the audio asset.

  On the other hand, the video stream obtained by the demodulator 11 is sent to the video processor 1A. The video processing unit 1A generates a video signal of a predetermined resolution from the input video stream and sends it to the display device 3 for display. Here, when the corresponding audio mode of the connected AV amplifier 2 can not be registered and set, the audio selection control unit 13 causes the GUI (Graphical User Interface) display unit 1B to perform a display for prompting an input operation of the mode selection. Send instructions to do. In response to the instruction, the GUI display unit 1B causes the display device 3 to display an input operation screen for mode selection through the video processing unit 1A. The user views the screen and performs an operation of selecting the corresponding audio mode of the AV amplifier 2 to the operation input unit 1C, thereby registering and setting the corresponding audio mode of the connected AV amplifier 2 in the audio selection control unit 13. be able to.

  FIG. 2 is a conceptual diagram for explaining a process of connecting an external AV amplifier 2 to the broadcast receiving apparatus 1 and transmitting an audio asset. In FIG. 2, the connection between the receiving device 1 and the external AV amplifier 2 is made by any one of an HDMI cable, / PDIF optical digital cable, and S / PDIF coaxial digital cable.

  First, when the receiving device 1 is in the form of a set top box (STB), the HDMI output terminal of the receiving device 1 and the HDMI input terminal of the external AV amplifier 2 are connected by an HDMI cable. Thereby, the audio signal is transmitted from the receiving device 1 to the external AV amplifier 2 together with the video signal. On the other hand, in the case where the receiving device 1 is in the form of a television, the HDMI output terminal of the external AV amplifier 2 and the output terminal of the external AV amplifier 2 for the purpose of inputting video and audio signals reproduced by the external AV amplifier 2 to the receiving device (television) 1 The HDMI input terminal of the receiving apparatus (TV) 1 is connected by an HDMI cable. In this case, by using the function (HDMI-ARC: audio return channel) that transmits only the audio signal in the direction from the receiving device (television) 1 to the external AV amplifier 2 on the HDMI cable, the audio of the receiving device (television) A signal can be sent to the external AV amplifier 2. Note that the receiver 1 in the form of a television may be equipped with an HDMI output terminal, and may be equipped with a function of transmitting video and audio signals to the HDMI input terminal of the external AV amplifier 2.

  In the case of connection by the S / PDIF optical digital cable or the S / PDIF coaxial digital cable, the digital audio output terminal of the receiver 1 and the optical or coaxial digital audio input terminal of the external AV amplifier 2 are connected.

  Here, in the case of any connection of HDMI, HDMI-ARC and S / PDIF, the audio output from the receiving device 1 to the external AV amplifier 2 is only one audio asset. When a broadcast including a plurality of audio assets is received, the receiving device 1 selects and outputs one audio asset to be output to the external AV amplifier 2.

  Hereinafter, connection with the external AV amplifier 2 and processing required in the receiving device 1 will be described.

As shown in FIG. 2, the receiving apparatus 1 receives a broadcast wave (TLV stream) including a plurality of audio streams (maximum number of audio assets 4). For example, in the advanced wideband CS broadcast, seven types of voice modes can be operated (in the advanced BS digital broadcast, six types are used because the operation of AAC 1.0 ch is not performed). Among them, when broadcasting audio modes other than the three AAC 1.0 ch (not used in advanced BS), AAC 2.0 ch, and AAC 5.1 ch, which requires the receiving device 1 to be reproduced independently, are simultaneous. Audio is broadcast simultaneously. Table 1 shows a combination example of the voice mode and the simultaneous voice in broadcasting.

  The receiving device 1 selects one of the plurality of audio assets to be output and outputs the selected asset to the external AV amplifier 2. The asset to be output may be selected automatically if the user arbitrarily selects it, or if the audio mode compatible with the external AV amplifier 2 is known (previously set on the receiving device 1 side). In this case, as in the case of reproduction in the main body of the reception device 1, an asset with a small component tag value is prioritized. In addition, a function may be provided to decode the audio stream in the receiving device 1 and output the audio stream to the external AV amplifier 2 by linear PCM.

  The audio mode to be output to the outside is a combination according to the corresponding situation of the output destination device.

The audio mode and switching operation in stream output will be described.
First, the system of stream output to S / PDIF and HDMI is defined by IEC60958 and IEC61937. In the case of outputting each voice mode operated in advanced BS broadcast and advanced wideband CS broadcast, it is output according to the definition of Table 2 respectively.

  When transmitting AAC 22.2 ch and ALS audio, the bit rate of the signal exceeds the transmittable range at the 48 kHz IEC 609 58 frame rate, so it is necessary to extend the frame rate to more than double speed. Currently, we are preparing for the revision of IEC60958 and IEC61937 corresponding to this.

  As an operation example when outputting a broadcast in which the audio mode changes to the external AV amplifier 2, the receiving device 1 and the external AV amplifier 2 in receiving a broadcast in which the audio mode changes from MPEG4-AAC 2 ch to MPEG 4-ALS 2 ch The operation of is shown in FIG.

  The receiving device 1 receives the asset of AAC 2ch which is the preceding voice (FIG. 3 (a)), and outputs it to the S / PDIF at a frame rate of 48 kHz (FIG. 3 (b)). The external AV amplifier 2 receives this stream, decodes it, and outputs it to the speaker (FIG. 3 (c)). In this state, when the preceding voice asset of the broadcast is stopped (FIG. 3 (a)), the receiving device 1 outputs the NULL data stream to S / PDIF for 50 msec or more according to IEC 60958-1 (FIG. 3 (b)). / Stop output to PDIF. The external AV amplifier 2 discharges the audio stream accumulated in the buffer by this NULL data stream.

  When the receiving device 1 receives the ALS 2ch asset that is the subsequent voice (FIG. 3 (a)), the receiving device 1 changes the S / PDIF frame rate to 96 kHz and outputs the ALS 2ch stream (FIG. b). The external AV amplifier 2 having received such a stream changing on the S / PDIF performs resynchronization processing by the PLL circuit with respect to the change of the frame rate. Thereafter, format detection of the audio stream and switching from AAC to ALS of the audio decoder are performed, and the delay time of the ALS decoding is passed, and the subsequent audio is output from the speaker (FIG. 3 (c)).

  Furthermore, in FIG. 4 and FIG. 5, when the stream in which the audio mode changes in the middle is broadcast in the advanced BS / high-bandwidth CS digital broadcast, the change of the audio mode in the broadcast signal and the S / PDIF from the receiver 1 And the audio data output from the AV amplifier 2.

  FIG. 4 shows the relationship when the audio mode changes from MPEG4-AAC 2 ch to MPEG 4-AAC 5.1 ch. The receiver 1 which has received AAC 2ch from the broadcast signal outputs the AAC 2ch audio stream to the S / PDIF with a transmission clock of 48 kHz (1 × speed). Also, in broadcasting, an MPT for notifying a change of the sound mode is sent out about 100 msec before the sound mode changes.

  When the receiving device 1 sees the contents of the MPT and learns that the audio changes from AAC 2 ch to 5.1 ch, the output of the audio stream to the S / PDIF is stopped. However, since it is known that the subsequent voice is 5.1 ch and can be transmitted with the same 48 kHz transmission clock, the transmission clock continues to be output. Thereafter, when a subsequent AAC 5.1 ch audio stream is received, the stream is output to S / PDIF.

  The AV amplifier 2 receiving such a signal from the S / PDIF outputs the AAC 2ch audio to the speaker while the AAC 2ch audio is being input, and stops the audio output when it enters the no audio section, Next, when an audio signal is input, processing is performed to detect what the audio is, and when it is determined that the AAC is 5.1ch, output is performed to the speaker.

  On the other hand, FIG. 5 shows the case where the audio mode changes from MPEG4-AAC 2 ch to MPEG 4-AAC 22.2 ch. The difference from the case of FIG. 4 is that the MPEG4-AAC 22.2ch can not transmit at a bit rate of 48 kHz for the S / PDIF transmission clock, and the transmission clock needs to be switched to 96 kHz (double speed). .

  The receiving device 1 which has grasped the change of the audio mode by updating the MPT stops the S / PDIF AAC 2ch audio output when knowing that the subsequent audio is MPEG4-AAC 22.2ch which needs transmission at 96 kHz. After that, the output of the 48 kHz transmission clock is also stopped. Thereafter, the voiceless data of the transmission clock of 96 kHz is outputted to the S / PDIF, and when the 22.2 ch voice stream is received, the voice is outputted to the S / PDIF.

  The AV amplifier 2 receiving such a signal from the S / PDIF is synchronized with the receiver 1 at a frequency of 96 kHz by the PLL when the signal of the transmission clock of 96 kHz is received after the signal of AAC 2 ch 48 kHz is disconnected. I do. After the time required for this synchronization (about 200 msec) has elapsed, an audio signal is received, and after knowing that it is AAC 22.2 ch, sound is output to the speaker. As described above, when voice mode changes with different transmission clocks occur, there is a problem that the time required for sound output becomes long. As shown in FIG. 3, the audio mode switching from the MPEG4-AAC 2 ch to the MPEG4-ALS also causes switching with different transmission clock frequencies, so the same problem occurs.

As described in the problem, in the advanced BS broadcasting, the voice mode is expanded. As a result, at the transmission clock frequency defined by the conventional S / PDIF standard, there is a voice mode in which the transmission rate is insufficient and transmission can not be performed. For this reason, S / PDIF standard revision work is performed to extend the S / PDIF standard and enable high-speed transmission. Table 3 shows the relationship between the voice mode and the transmission clock frequency in S / PDIF.

  It is not necessary to receive and output all the audio modes defined in the standard as shown in Table 3 as the AV amplifier (including devices such as a sound bar) 2 compatible with advanced BS broadcasting, and AAC 1ch / 2ch It is possible to commercialize a product corresponding to /5.1ch only. In this case, the transmission clock frequency of S / PDIF only needs to correspond to 48 kHz.

  On the other hand, when the AV amplifier 2 corresponds to MPEG4-AAC 22.2 ch, the transmission clock frequency of the S / PDIF corresponds to both 48 kHz and 96 kHz. When the AV amplifier 2 supports up to MPEG4-ALS 5.1 ch, it is necessary to further cope with the transmission clock frequency of 384 kHz.

In order to convey these distinctions to general consumers in an easy-to-understand manner, the AV amplifier product is classified into three profiles as shown in Table 4 in this embodiment.

  On the other hand, the broadcasting station switches the audio mode of the audio stream during broadcasting and transmits it. For example, the program main part is in the form of MPEG4-AAC 5.1 ch, and the CM part is in the form of MPEG4-AAC 2 ch.

  In advanced BS broadcasting, when such an audio stream is switched, the MPT is updated 100 msec before the switching, and the receiving apparatus 1 is notified in advance that the audio stream is switched.

  When the receiving device (TV) 1 that has received such a broadcast performs sound output with the built-in speaker, the receiving device (TV) 1 first outputs the audio on the preceding side if the switching of the audio mode is known in advance by updating the MPT. To mute the switch, change the setting of the decoder to match the audio mode to the subsequent audio stream, and perform the subsequent audio output to the speaker when the subsequent audio is received.

  On the other hand, when an audio stream is output from the receiving device (TV) 1 to the AV amplifier 2 and the sound is output to the speaker via the AV amplifier 2, as shown in FIG. Output MPEG4-AAC 2ch) to S / PDIF. When switching of the voice mode is detected by the MPT update, the output of the preceding voice to the S / PDIF is stopped. However, the S / PDIF transmission clock continues to be at 48 kHz. When the subsequent voice (MPEG4-AAC 5.1 ch) is received, the receiver (TV) 1 outputs the stream of the subsequent voice to the S / PDIF.

  Here, the S / PDIF has no means for transmitting information other than the audio stream from the receiver (TV) 1 to the AV amplifier 2. Therefore, the AV amplifier 2 checks the content of the received audio stream each time when switching the audio mode, and detects a change from AAC 2 ch to AAC 5.1 ch. For this reason, the subsequent sound is output from the speaker later by a certain amount of time than the point where the stream on S / PDIF is changed to AAC 5.1 ch. This time is a time for the AV amplifier 2 to detect audio mode switching.

  The above example describes the case where the S / PDIF transmission clock frequency changes within the range of transmittable audio modes at 48 kHz, that is, the change from MPEG4-AAC 2ch to MPEG4-AAC 5.1ch. . FIG. 5 shows audio mode switching that requires switching from different transmission clock frequencies, such as MPEG4-AAC 2 ch to MPEG 4-AAC 22.2 ch.

  The receiver (TV) 1 that has received the voice of MPEG4-AAC2ch that is the preceding voice transmits the stream of AAC2ch at a transmission clock frequency of 48 kHz when outputting the audio stream to the S / PDIF. The receiving apparatus (TV) 1 which has grasped that the subsequent audio is MPEG4-AAC 22.2 ch by the update of the MPT first stops the transmission of the preceding audio. Next, since the subsequent voice is a voice mode that can not be transmitted without a clock of 96 kHz, the transmission clock of 48 kHz is also stopped, and then the transmission clock of 96 kHz is output. After that, when the subsequent audio is received, the audio stream of MPEG4-AAC 22.2 ch is transmitted with a clock of 96 kHz.

  On the other hand, from the viewpoint of the AV amplifier 2 that receives this audio stream, the audio stream is first stopped while the audio of MPEG4-AAC 2ch 48 kHz which is the preceding audio is being output, and then the transmission clock of 48 kHz is also stopped. Subsequently, a 96 kHz transmission clock is input via the S / PDIF. Since the frequency of the transmission clock for communication has changed, synchronization processing of the transmission clocks of the receiver (TV) 1 and the AV amplifier 2 is performed by the PLL circuit.

  When the communication channel between the receiving device (TV) 1 and the AV amplifier 2 can be synchronized, the audio stream can be received again via the S / PDIF, the audio mode of the received audio stream is detected, and to the speaker The operation of emitting the sound of is performed. It is assumed that the time taken for the synchronization process by this PLL (PLL lock time) takes a relatively long time of about 200 msec. Therefore, there arises a problem that the leading portion of the subsequent voice is missing.

  In order to avoid this problem, to which transmission clock frequency the AV amplifier 2 connected to the receiving device (TV) 1 can support, that is, to which profile in Table 4 the receiving device (TV) 1 belongs. Whether the AV amplifier is connected is stored as the connection mode of the profile.

  When an HDMI cable is used for connection between the receiving device (TV) 1 and the AV amplifier 2, from HDMI's Extended Display Identification Data (EDID) or High Definition Multimedia Interface-Consumer Electronics Control (HDC-CEC) Based on the information that can be acquired, the receiving device (TV) 1 determines which profile the AV amplifier 2 belongs to, and stores the connection mode of the profile. For example, when an AV amplifier capable of supporting only MPEG2-AAC 2ch / 5.1ch is connected, the receiver (TV) 1 stores and sets "Profile-A connection mode". When an AV amplifier capable of supporting MPEG2-AAC 2ch / 5.1ch / 22.2ch is connected, the receiver (TV) 1 stores and sets "Profile-B connection mode".

  On the other hand, when the connection between the receiving apparatus (TV) 1 and the AV amplifier 2 is an S / PDIF optical cable or a coaxial cable, the receiving apparatus (TV) 1 can not obtain information on the AV amplifier 2. Therefore, a menu for inputting “profile of connected AV amplifier” is created by the GUI of the receiving device (TV) 1, and the user is made to input.

  By providing the receiving device (TV) 1 with a function of storing and setting a “profile connection mode” indicating which profile the AV amplifier 2 connected to the receiving device (TV) 1 belongs to, the receiving device (TV) 1 The audio stream output to S / PDIF is as shown in FIG. 6 and FIG. 6 and 7 show signals output from the receiver (TV) 1 for each mode to the S / PDIF when a broadcast in which an audio stream changes from MPEG4-AAC 2 ch to MPEG 4-AAC 22.2 ch is received. FIG.

  FIG. 6 is a diagram when a Profile-B AV amplifier capable of handling AAC 22.2 ch is connected. The receiver (TV) 1 set to “Profile-B connection mode” is 96 kHz even if it is an AAC 2 channel stream that is originally sufficient for 48 kHz when outputting MPEG 4 AAC 2 channel audio to S / PDIF. Output to S / PDIF. Thereafter, even if audio switching to MPEG4-AAC 22.2 ch occurs, it is possible to switch only the audio stream with the transmission clock remaining at 96 kHz. As a result, the PLL lock time as shown in FIG. 5 becomes unnecessary, and it is possible to reduce the loss of sound at the switching point from AAC 2 ch to 22.2 ch.

  On the other hand, FIG. 7 is a diagram when the Profile-A AV amplifier which can not handle MPEG4-AAC 22.2 ch is connected. The receiver (TV) 1 set in “Profile-A connection mode” can not use any clock other than 48 kHz when outputting MPEG4-AAC 2ch audio to S / PDIF. Since it is an output, the transmission clock of S / PDIF is set to 48 kHz and output.

  In the case of advanced BS broadcasting, the audio decoder that the receiving apparatus is required and must have is only MPEG4-AAC 1ch / 2ch / 5.1ch, and the other is optional. For this reason, when broadcasting AAC 22.2 ch or MPEG 4-ALS audio, the audio of AAC 2 ch or 5.1 ch is always broadcast as a simulcast.

  The Profile-A AV amplifier can not handle AAC 22.2ch audio. For this reason, the receiver (TV) 1 that recognizes that audio switching to MPEG4-AAC 22.2 ch occurs due to MPT update is simultaneous broadcast audio of AAC 2 ch or 5.1 ch that can be handled by the AV amplifier of Profile-A. The broadcast signal is searched, and the voice is output to the S / PDIF with the transmission clock kept at 48 kHz. In this case, since the AV amplifier 2 receives a stream in which the mode does not change with both the preceding voice and the subsequent voice as in MPEG4-AAC 2ch, the subsequent voice can be output without requiring the voice mode detection time.

  As described above, when the connection between the receiving apparatus (TV) 1 and the AV amplifier 2 is an S / PDIF optical cable or a coaxial cable, the receiving apparatus (TV) 1 can advance in advance the audio mode that can be received by the AV amplifier 2. Although it is not possible to automatically understand, it is necessary to output to the AV amplifier 2 a stream from which sound can be reproduced by allowing the user to register in advance in the GUI that "Profile-A connection mode" is set. Can.

  The MPEG4-AAC 22.2 ch of this embodiment can be read as the MPEG 4-ALS 2 ch. When handling MPEG4-ALS 5.1ch, a third profile and mode called Profile-C will be added.

  The above control process is performed by the voice selection control unit 13 shown in FIG. Specific processing procedures in the voice selection control unit 13 are shown in FIG. 8 and FIG.

  FIG. 8 is a flowchart showing the procedure of the voice mode registration setting process. First, in the connection of the external AV amplifier 2, it is judged whether or not it is a connection by the HDMI cable (step S1), and if it is the HDMI connection (NO), the user selects the profiles A to C by the GUI display (step S2). Is performed (step S3), and the selected profile is registered and set (step S4).

  In step S1, in the case of HDMI connection (YES), it is determined whether the EDID is available through the HDMI cable (step S5), and if the EDID is available (YES), the EDID is obtained (step S6) The physical address of the device is specified from the EDID to determine a compatible profile (step S7), and the process proceeds to step S4 to register and set the profile.

  In step S5, if the EDID is not obtained (NO), an HDMI-CEC command is obtained (step S8), and a compatible profile is determined from the HDMI-CEC command (step S9), and in step S4. Migrate and register the profile.

  FIG. 9 is a flow chart showing the procedure of processing after voice mode registration setting at the time of S / PDIF connection as an example. First, when MPT is detected during reception of an audio stream (steps S11 and S12), the registration profile of the AV amplifier 2 is determined (step S13), and if the profile connection mode is A, the clock speed is set to 48 kHz (step S14). If it is B, the clock speed is set to 96 kHz (step S15). If it is C, the clock speed is set to 384 kHz (step S16).

  Here, it is determined whether or not the double speed mode (96 kHz, 384 kHz) is selected in the above clock setting (step S17), and if it is not double speed mode, it is converted to voice mode of 1 double speed 48 kHz (step S18). To the S / PDIF in the corresponding voice mode (step S19).

  As described above, in the broadcast receiving apparatus according to the present embodiment, the connected audio device does not correspond to the audio mode of the profile of the double-speed mode when the audio of the non-double-speed mode and the audio of the double-speed mode are mixed and broadcast. In this case, when switching to voice in the double speed mode, it can be converted to voice in the non double speed mode and output.

  In addition, when the connected audio device is also compatible with the double-speed mode, the audio mode of the corresponding profile is grasped in advance and the clock is set not to be changed before and after the audio mode switching. The head loss of the output voice can be extremely reduced.

  In addition, even when it is not possible to grasp in advance the audio mode correspondence situation in the AV amplifier, the user can select the audio to be output by designating and inputting the mode by the GUI.

Second Embodiment
By the way, as described above, when a plurality of voice modes (voice assets) are transmitted and an arbitrary voice mode can be selected on the receiving side, any voice mode is transmitted by the logo used in the program display section. The user can view the logo and selectively use the AV amplifier. For example, if the ALS 5.1 ch is displayed as a logo in a music program or the like while viewing normally by a built-in voice output of the receiver, the user recognizes the voice mode and switches and sets the AV amplifier. Can. In addition, even if the switching setting is made automatically, by identifying and displaying the voice mode of the program on the logo, the user can always confirm in which voice mode the current program is being broadcast. Hereinafter, a digital broadcast system in which a logo transmission system is added to the sound processing system of the first embodiment will be described as the second embodiment.

  The digital television broadcast system according to the second embodiment will be described below with reference to FIGS. 10 to 15.

  FIG. 10 is a block diagram showing the configuration of a broadcasting transmission apparatus of the digital television broadcasting system according to the present embodiment. The broadcasting transmission device inputs logo data used in a program display section such as an EPG (Electronic Program Guide) and logo management information for managing the logo of the logo data, and the logo data modularization unit 101 is respectively provided. Through the CDT sectioning unit 102, the logo data distribution descriptor generating unit 103, the logo transmission descriptor generating unit 104, and the SDT (Service Definition Table) sectioning unit 105, the multiplexing unit 106 Program Specific Information), SI (Service Information) other than CDT and SDT, etc. and multiplexed as MPEG-2 TS (Transport Stream) (hereinafter TS) to perform channel coding such as error correction coding or modulation (not shown) ) And transmit it as a broadcast signal to the service area. As described above, in the broadcast, for example, at the time of program switching, an MPT for notifying a change of the sound mode is transmitted about 100 msec before the change of the sound mode.

  Here, in the transmission system of service logo data of digital television broadcasting, a table of section format called CDT (Common Data Table) is used based on the provision of 5.4.1.2 of ARIB TR-B14, and the type of logo ( Logo management information indicating the correspondence between the logo_type and the section to be transmitted is defined as a new descriptor, and transmitted together with the logo data.

  Usually, the logo used for broadcasting differs for each broadcast channel (service). For this reason, logo identification (hereinafter, logo_id) for identification and management by the receiver is given to each logo data. In addition, the same logo_id is given to logo data of a plurality of types of sizes that have the same design and color, and differ in the number of pixels, etc. depending on the intended receiver and its application, voice mode, etc. It is distinguished by logo type (hereinafter, logo_type). Also, logo_id is updated and managed with a version number (hereinafter, logo_version).

  The transmitted logo data is sent to the logo data modularization unit 101 together with logo management information, logo_id, logo_type, and logo_version. This logo data modularization unit 101 compresses the input logo data, and logo data of the data structure defined in FIG. 11 (quoted from Table 5-15 in 5.4.1.2 of ARIB TR-B14) for each logo_id and logo_type. Store in an area called a module. This logo data module has 16 bits of data_size field, but can not store 64 kbytes of data in the CDT section.

  The logo data module is sent to the CDT sectioning unit 102 in the logo data modularization unit 101. The CDT sectioning unit 102 distributes the logo data module to a plurality of sections of the CDT and transmits the same to the multiplexing unit 106. Here, the CDT has a data structure as shown in FIG. 12 (cited from Table 5-14 in 5.4.1.2 of ARIB TR-B14). The CDT is identified for each download data identification (hereinafter, ownload_data_id). One section of the CDT has a size of up to 4 kbytes indicated by the section_length field, and the CDT can be divided into up to 256 sections for transmission.

  The logo management information logo_id, logo_type, and logo_version are also sent to the logo data distribution descriptor generation unit 103 and the logo transmission descriptor generation unit 104. The logo data distribution descriptor generation unit 103 generates, for each logo data, a logo data distribution descriptor indicating the correspondence between the logo_type and the CDT section to be distributed, sends the logo data distribution descriptor to the CDT sectioning unit 102, and Place on In addition, the logo transmission descriptor generation unit 104 separately sets 0x01 when the CDT transmission method 1 is specified in the logo transmission type (logo_transmission_type), and logo data of logo identification (logo_id) and logo version number (logo_version). Along with the management information, download data identification (download_data_id) is added to generate a logo transmission descriptor. By setting download_data_id here to the same value as download_data_id of CDT, it becomes possible to specify logo data of CDT transmission corresponding to a certain broadcast channel (service). The SDT sectioning unit 105 arranges the logo transmission descriptor in the descriptor area of the SDT for each service_id specifying the broadcast channel, transmits it to the multiplexing unit 106, and carries out TS multiplexing with the CDT section data.

  Now, when the size of data for each logo_type stored in the logo data module falls within the size of 4 kbyte of one section, it is possible to transmit using one section. However, when transmitting logo data with a large number of pixels, such as 4K and 8K broadcasts, for example, it may exceed 4 kbytes. In addition, in ultra high definition digital broadcasting, when you want to select only a certain type of logo of a certain size and transmit it in an arbitrary order without using one with a small number of pixels among logo_type used in terrestrial digital broadcasting Is also conceivable. For these reasons, "the logo of each size is transmitted as it is in the section_number section that matches the" logo_type "value, which has been determined by the operation rules of terrestrial digital broadcasting. The rule can not be used. Therefore, in the present embodiment, the logo data distribution descriptor is defined so that the CDT can transmit even in such a case. The data structure of this logo data distribution descriptor is, for example, as shown in FIG.

Assuming that the logo data module identified by logo_type is to be divided into CDT sections having consecutive section numbers for transmission, the first section number is described in the start_section_number field, and the number of section divisions for transmitting the logo data module is Describe in the numbers_of_sections field. For example, suppose that two kinds of logo_type logo data are transmitted, logo data of 1000 bytes of logo_type = 0x05 is section number 0, and logo_type of 10000 bytes of logo data is temporarily assumed to be 0x06, for a total of three sections of 4000 bytes, 4000 bytes, and 2000 bytes. It divides and transmits sequentially from the section number 1. in this case,
logo_type = 0x05, start_section_number = 0x00, numbers_of_sections = 0x01
logo_type = 0x06, start_section_number = 0x01, numbers_of_sections = 0x03
It should be written as Then, this logo data distribution descriptor is placed and transmitted in the descriptor area of the CDT. The delivery system of these series of logo data is as shown in FIG.

  On the other hand, in the corresponding broadcast receiving apparatus, if it is detected that the logo transmission descriptor is arranged in the descriptor area of the SDT for the logo data of the desired broadcast channel (service), the CDT of the service concerned is detected. Judging that it is transmitted, referring to the designated download_data_id, first, an arbitrary CDT section is acquired. As described above, by analyzing the logo data distribution descriptor described in the acquired CDT section, it can be grasped that the logo data of which logo_type is transmitted in the section (s) of which section number. Then, by setting to filter the section number of the required logo_type, it is possible to efficiently obtain the logo data.

  Next, the configuration of the broadcast receiving apparatus will be described. FIG. 14 is a block diagram showing the configuration of the broadcast receiving apparatus 1a according to the second embodiment. As shown in FIG. 14, the broadcast receiving apparatus 1a includes a transmission path decoding unit 201, a module I / F unit 202, a section processing unit 203, a TS processing unit 204, a video decoding unit 205, an audio decoding unit 206, and an OSD processing unit 207. (OSD: On-Screen Display), communication I / F unit 208, operation unit 209, NVRAM 210 (NVRAM: Non-Volatile RAM), ROM 211 (ROM: Read Only Memory), RAM 212 (RAM: Random Access Memory), CPU 213 (CPU) A central processing unit (CPU), a descrambler 214, and a storage unit 215 are provided, and the units are connected by a bus 216.

  The transmission path decoding unit 201 performs demodulation processing and error correction decoding processing on a broadcast signal received from a receiving antenna (not shown) to obtain a transport stream TS. The TS processing unit 204 separates packet-multiplexed information as the transport stream TS, and performs processing of extracting a video signal, an audio signal, and the like. The section processing unit 203 also extracts related information in section format such as PSI (Program Specific Information) or SI (Service Information) demultiplexed from the transport stream TS in cooperation with the TS processing unit 204. Perform the process. For example, by setting filtering conditions, it is also possible to extract only a section of a specific section number from an EIT, a CDT, etc. which are generally composed of a plurality of sections.

  The video decoding unit 205 decodes the video signal output from the TS processing unit 204, and outputs the decoded video signal to the OSD processing unit 207. The voice processing unit 206 corresponds to the voice selection control unit 13, the decoder 14, the DMIX unit 15, the switching unit 16, the DAC 17, the voice output unit 18, the external output interface 19, and the GUI display unit 1B shown in FIG. The audio signal (audio stream) output from the TS processing unit 204 is decoded, and the decoded audio signal is output to the audio output unit 18 in the receiving apparatus or output to the external AV amplifier 2. The AV amplifier 2 is an audio device including an amplifier, a speaker, and the like, and performs audio reproduction according to the audio signal output from the audio processing unit 206. The OSD processing unit 207 performs predetermined OSD processing, for example, GUI display processing from the audio processing unit 206, on the video signal output from the video decoding unit 205 under the control of the CPU 213, and outputs the video signal to the display device 3. The display device 3 is an LCD (Liquid Crystal Display) or the like, and performs screen display based on the output video signal. For example, the display device 3 performs screen display such as an EPG or the like based on the SDT of the broadcast channel information description and the EIT of the program information description included in the SI separated from the multiplexed transport stream TS1.

  The communication I / F unit 208 is an interface that performs data communication with the communication network 4 according to a predetermined communication protocol under the control of the CPU 213. An operation unit 209 is an operation key, a remote controller, or the like, and receives user's operation input. The operation unit 209 also has the function of the operation input unit 1C shown in FIG. The NVRAM 210 stores various setting information. For example, the format of content that can be handled by the broadcast receiving apparatus 2 is stored in the NVRAM 210 as setting information.

  The ROM 211 stores programs executed by the CPU 213 and the like. The RAM 212 provides a work area when the CPU 213 executes a program. The RAM 212 also provides an area for temporarily storing EIT information included in the SI separated from the multiplexed transport stream TS1. The CPU 213 develops the programs stored in the ROM 211 in the work area of the RAM 212 and sequentially executes them, thereby centrally controlling the operation of the broadcast receiving apparatus 1a.

  The module I / F unit 202 is an interface connected to the security module 220 in which encryption key information related to limited reception and the like is stored.

  The descrambler 214 descrambles the scrambled payload portion in the received transport stream TS1 based on the encryption key information stored in the security module 220. By the descrambling by the descrambler 214, the broadcast receiving apparatus 2 copes with the limited reception using the EMM and the ECM. The storage unit 215 is a mass storage medium such as an HDD, and stores, for example, the received content.

  Next, the processing operation regarding logo data of the broadcast receiving apparatus executed under the control of the CPU 213 will be described along the flowchart shown in FIG.

  First, when a broadcast signal is received (step S21), the broadcast signal is demodulated to acquire SDT (step S22). Here, for logo data of a desired broadcast channel (service), the presence or absence of a logo transmission descriptor is repeatedly determined from the acquired SDT (step S23), and if there is a description of the logo transmission descriptor in SDT (YES) Then, it is judged from the logo transmission descriptor whether there is a logo which has not been received yet (step S24). Based on the determination result of step S24, the CDT section of any of section_number of designated service is acquired (step S25), and the logo data distribution descriptor is extracted from the acquired CDT section and analyzed (step S26). Based on the analysis result, the CDT section of section_number for the desired logo_type of the specified service is acquired (step S27), logo data is acquired from the acquired CDT section (step S28), and the series of processing is terminated.

  That is, according to the above procedure, since it is possible to grasp which logo_type logo data is transmitted in which section number section (s), it is set to filter the section number of the logo_type required next. By doing this, the logo data can be efficiently acquired.

  As described above, in the first embodiment, in the section-type logo data transmission, a logo data distribution descriptor indicating the correspondence between the type of logo and the section to be transmitted is specified and transmitted regarding logo data to be transmitted. As a result, it is possible to select as many logo data as the required type and transmit it efficiently in any order, regardless of the size of the logo data.

  Although this embodiment has been described using the CDT based on MPEG-2 TS adopted in the current terrestrial broadcasting etc., TLV (Type Length Value) / MMT (adapted to be adopted in future advanced BSs) The present invention may be applied to MH-CDT based on MPEG Media Transport. However, in the case of TLV (Type Length Value) / MMT (MPEG Media Transport), there are the following differences with respect to blocks and processing as compared with MPEG-2 TS. For MH-, refer to ARIB STD-B60 "Reference 1-Configuration of control information described in this standard" and "Table and descriptor specified in ARIB STD-B10, MMT while having the same function. The table identifier and descriptor tag value have been modified so that they can be used in a broadcast system that uses the symbol “MH-”, which means MPEG-H at the beginning of the name, to distinguish it from the original table and descriptor. There is. Is described.

  The MH-CDT section of TLV / MMT corresponds to the CDT section of MPEG-2 TS, the MH-SDT section of TLV / MMT corresponds to the SDT section of MPEG-2 TS, and the MH-logo transmission descriptor of TLV / MMT Corresponds to the MPEG-2 TS logo transmission descriptor.

  The data structure of the MH-CDT is described in 7.3.3.10 of ARIB STD-B60. In this case, for example, even if the number of bits of the tag field (descriptor_tag) of the logo data distribution descriptor of FIG. 11 is 16 bits, the essence is not changed at all.

Third Embodiment
Hereinafter, a broadcasting transmission apparatus in the case of the TLV / MMT will be described as a third embodiment. FIG. 16 shows the configuration, and logo data and logo management information for managing the logo of this logo data are input, and logo data modularization unit 21, MH-CDT sectioning unit 22, MH-logo transmission, respectively. After passing through the descriptor generation unit 23 and the MH-SDT sectioning unit 24, the MMT multiplexing unit 25 multiplexes together with the video signal and the audio signal etc., and performs channel coding such as error correction coding and modulation (not shown) And send it to the service area as a broadcast signal.

  Specifically, the transmitted logo data is sent to the logo data modularization unit 21 together with logo management information, logo_id, logo_type, and logo_version. The logo data modularization unit 21 stores the input logo data in an area called logo data module for each logo_id and logo_type. The logo data module is sent to the MH-CDT sectioning unit 22 in the logo data modularization unit 21. The MH-CDT sectioning unit 22 distributes the logo data module to a plurality of sections of the MH-CDT and transmits the same to the MMT multiplexing unit 25. Here, MH-CDT is identified for each download_data_id. The logo data distribution information of the MH-CDT sectioning unit 22 is sent to the MH-logo transmission descriptor generating unit 23.

  The logo management information logo_id, logo_type, and logo_version are also sent to the MH-logo transmission descriptor generation unit 23. In this MH-logo transmission descriptor generation unit 23, when CDT transmission method 1 is separately specified in the logo transmission type (logo_transmission_type), 0x01 is set, and the logo identification (logo_id) and logo of logo version number (logo_version) are set. Along with data management information, download data identification (download_data_id) is added to generate a logo transmission descriptor. By setting download_data_id here to the same value as download_data_id of MH-CDT, it becomes possible to specify logo data of MH-CDT transmission corresponding to a certain broadcast channel (service). Here, the MH-logo transmission descriptor generation unit 23 receives the logo data distribution information from the MH-CDT sectioning unit 22 and expands the contents of the logo data distribution information in the MH-logo transmission descriptor.

  The MH-SDT sectioning unit 24 arranges the MH-logo transmission descriptor in the descriptor area of the MH-SDT for each service_id specifying the broadcast channel and transmits it to the MMT multiplexing unit 25, and section data of the MH-CDT. Multiplexed with

  The essential difference from the configuration of the second embodiment shown in FIG. 10 is that instead of newly defining logo data distribution information as a descriptor and describing it in the descriptor area in MH-CDT, MH-SDT description is described. Is an extension of the MH-logo transmission descriptor. The state of this expansion is shown in FIG.

  According to this configuration, by describing in MH-SDT, logo data distribution information can be acquired before acquiring MH-CDT, so the receiver side first acquires any one section of MH-CDT to The step of S25 in FIG. 15 for confirming the data distribution descriptor is not necessary, and the required logo_type logo data can be acquired more efficiently.

  The process of this embodiment is also applicable to the MPEG-2 TS system of the second embodiment.

Fourth Embodiment
The fourth embodiment can be realized by a delivery apparatus similar to the third embodiment. However, logo data distribution information is not inserted into the MH-logo transmission descriptor. Logo data distribution information is fixedly determined in advance according to the operation rules, or additionally inserted in data_module_byte of MH-CDT.

  In advanced broadband satellite digital broadcasting, logo_type is defined for three size patterns. One is "2K", which is the same as "HD large" defined in terrestrial digital broadcasting. The other two are "Small" for display on 4K screen and "Large" for display on 8K screen, and the number of vertical and horizontal dots are doubled respectively compared to "2K" , Has quadrupled. Also, with the "small" and "large" logos, although the number of colors used at the same time is limited, in order to be able to use 8-bit RGB full color colors, a color palette is also transmitted. For this reason, the upper limit of the logo data size is large.

  The "2K" logo has the same size limit of 1152 bytes as "HD large" for digital terrestrial broadcasting, and can be sent on one MH-CDT, but "small" is 8000 bytes and "large" is 16000 bytes. It is assumed to be an upper limit and can not be sent with one MH-CDT. For this reason, regulations for transmitting logo data by a plurality of MH-CDTs are newly required. Hereinafter, a method for transmitting logo data in a plurality of MH-CDTs will be described as a fourth embodiment.

  FIG. 18 shows the flow of processing according to the fourth embodiment. In FIG. 18, the input of the logo data is waited (step S31), and when the logo data is input, it is determined whether the logo_type is 2K, large or small, and the logo data is set for each logo_type. The value of section_number to be distributed is set (step S32). Subsequently, the logo data is divided in consideration of the maximum capacity of the MH-CDT and set in the data_module_byte of the MH-CDT section together with the arrangement information (step S33), and the series of processing is ended.

  That is, in the present embodiment, a service logo having a large size which does not fit in one section is transmitted by the MH-CDT by a change in the definition of data_module_byte and a change in only the operation rule. Therefore, it is added to ARIB standard for the purpose of changing the definition of MH-logo transmission descriptor, with new data structure which is not MH-CDT, or describing a new descriptor to be inserted into MH-CDT. And there is no need to make any changes.

  Examples 1 to 5 will be described below for the specific processing of the present embodiment.

Example 1
In the logo data modularization unit 101 shown in FIG. 10, with respect to the syntax of data_module_byte of terrestrial digital broadcast, the number of bytes of the logo of the corresponding logo_type, that is, the total size of the data divided into each section Add the field "total_logo_size". An example is shown in FIG. Also, in place of the terrestrial digital broadcast that "the logo of each size is transmitted in the section of section_number that matches the logo_type value" is used, the section_number value used for each logo_type is fixed and used. Stipulate stipulations. Here temporarily
2K 0
Large 1 to 4
Small 5 to 6
I assume. In addition, logo data is divided every 4000 bytes and stored in data_byte. By determining in this way, the range of section_number of the section acquired to receive the logo of each logo_type can be known in advance without using the information in the received MH-CDT. For example, if you want only a small logo, get all sections with section_number 0 to 6 and then determine the logo_type in data_module_byte to determine that section_numbers 5 and 6 do not fall under section_number. You only need to get sections 5 and 6

  Moreover, by adding total_logo_size and determining the division size, it becomes possible to judge that it is not necessary to receive all the sections of section_number determined by logo_type. For example, if the large logo and total_logo_size is 10000 bytes, it turns out that the data_size of sections with section_number 1 to 4 are in order 4000 bytes, 4000 bytes, 2000 bytes, 0 bytes, respectively, and that it is unnecessary to acquire sections of section_number = 4 I understand. Similarly, if the section of section_number = 5 is acquired and the total_logo_size is 4000 bytes or less, it is known that acquisition of the section of section_number = 6 is unnecessary.

  Here, as an example, the values of section_number are assigned in the order of the values of the logotype, but the order may not be in this order.

  Also, although the division size is 4000 bytes as an example here, it may be another value. For example, assuming that the division size is 4070 bytes, a logo with a total_logo_size of 10000 bytes may be divided into 4070 bytes, 4070 bytes, 1860 bytes, and 0 bytes.

  Also, here, total_logo_size is added as an example to data_module_byte to determine the division size, but it is also possible to add information on whether or not there is a continuation in data_module_byte without determining the division size, and also to determine the division size Other information may be added, such as whether or not there is a continuation.

Example 2
The sections in the stream do not know in which order they are sent, and also, while the section filter setting for acquiring the next section is being retried after acquiring one section, unacquired sections If one section is acquired and then the next section is acquired, it is possible that it takes a long time to acquire all the desired sections. In addition, although the acquisition time can be shortened by setting the section filter at the same time, it consumes a lot of resources of the section filter.

  As a means to avoid this, it is conceivable to specify a mask as a section filter condition.

  It is a function to acquire a section whether it is 0 or 1 for some bits. In the mask specification of section_number, the bit specifying 0 as a bit specified as 0 is designated as x, and the bit which may be 0 or 1 is represented as x.

The large logo has up to 4 sections, the small logo has up to 2 sections, and it is better to mask with 2 bits for the large logo and 1 bit for the small logo. Therefore, assume that the mask designation of the large logo section_number is 000001xx (00000100000010100000110,00000111), and the mask designation of the small logo section_number is 0000001x (0000001000000011). In this way, the section_number value to use is
Small 2 to 3
Large 4 to 7
It becomes. in addition
2K 0
In this case, the section of section_number = 1 is unnecessary.

  Normally, section_number is allocated without omission from 0 to last_section_number, but in EIT [schedule] (and MH-EIT [schedule]), an operation is such that an intermediate section may be left out as an exception. Therefore, if MH-CDT is specified not to send the section of section_number = 1, it is possible to transmit logo data of each logo_type in 7 sections of section_number 0 and 2 to 7. .

  Here, although section_number = 1 is unnecessary as an example, logo data of each logo_type may be transmitted in seven sections where section_number is 1 to 7 with section_number = 0 as an unnecessary section.

[Example 3]
In the case of specifying the same mask as in the second embodiment, if invalid data can be indicated, this can be realized without performing an exception operation such as not sending an intermediate section.

  For example, it is possible to realize by defining that the value of 0xFF will not be used as the logo_type in the future, and if the value of the logo_type of data_module_byte is 0xFF, the data is determined to be invalid data. In the case of a receiver that acquires only the necessary section_number sections, this section is not acquired, so processing is not affected. In the case of a receiver that acquires all sections of section_number with the mask function of the section filter, it may be judged as invalid data and discarded.

Example 4
Alternatively, in the case of performing the same mask designation as in the second embodiment, it is possible to use one section for transmitting other information instead of sending logo data itself.

  The 2K logo is transmitted by section_number = 1, another section is transmitted by section_number = 0, section_number = 0 is used to transmit special data and section_number 1-7 is transmitted by logo data it can.

  For example, as shown in FIG. 20, data_module_byte in the case of section_number = 0 can indicate which logo_type of logo data is being sent by each section number, that is, logo data distribution information. In the example of FIG. 20, the number of logo_types, which is the number of logo_types, is looped to specify the number of bytes of logo data for each section_number (start_section_number + j) used in each logo_type.

[Example 5]
If data_module_byte as shown in FIG. 20 is transmitted with section_number = 0, even if the range of section_number used in each logo_type is not fixed in the operation standard, section_number of the desired logo_type after acquiring section_number = 0 It is possible to obtain the desired logo_type service logo by two steps of obtaining the section of. Although the time to acquire a desired logo may be long by two steps, it is possible to cope with the case where a new logo_type is added in the future.

  In the case where the range of section_number is not fixed in operation rules, the number of sections used in logo_type may be fixed at the maximum or may be variable depending on the size of logo data.

  As described above, in the fourth embodiment, by changing the definition of data_module_byte and the assignment rule of section_number, ARIB is a new data structure that is not MH-CDT, or a new descriptor to be inserted into MH-CDT. It is possible to transmit a large-sized service logo that does not fit into one section by MH-CDT without additionally defining it in the standard or changing the definition of the MH-logo transmission descriptor in the ARIB standard. .

  Further, in the first to fourth embodiments, it is possible to obtain only the section of the section of the desired logo_type, as in the case of terrestrial digital broadcasting. Further, in the second to fourth embodiments, by setting the section filter with the section_number masked, it is possible to efficiently obtain the large logo and the small logo. Further, in the fifth embodiment, it is possible to cope with the case where logo_type is newly added in the future.

  In the embodiment, CDT and MH-CDT are generically referred to as common data table information, SDT and MH-SDT as generically service description table information, and logo transmission descriptor and MH-logo transmission descriptor as logo transmission descriptor. It shall be collectively called.

  According to the second to fourth embodiments, since it is possible to transmit logo data with high definition, for example, the next broadcast program is selected as the logo by using the voice mode read from the MPT information. It is possible to change the display of the logo accompanying the change of the sound mode, such as displaying the sound mode and displaying that there is a selectable sound mode.

  According to the above-described embodiment, a broadcast system, a broadcast transmission apparatus, a broadcast reception apparatus, a broadcast transmission method, and a broadcast reception method are provided which have the following requirements.

  (1) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. A broadcast system which is multiplexed and transmitted together with an arbitrary number of different types of logo data per logo identification, wherein the logo data is modularized according to the logo identification and the logo type, and the modular logo The data is distributed to the plurality of sections of the common data table information, and the section in which the logo data is distributed with the type of the logo The logo data distribution information indicating the correspondence relationship with this is defined and inserted into the logo data distribution descriptor of the common data table information, and the logo transmission description information from the logo management information including the logo identification of the logo data and the type of logo The information is generated and inserted into the logo transmission descriptor of the service description table information, and the common data table information and the service description table information are multiplexed to the broadcast signal including the first audio signal or the second audio signal. The transmission system to be transmitted and the broadcast signal are received to acquire the service description table information, and the logo transmission description information is extracted from the logo transmission descriptor of the acquired service description table information to acquire the logo management information And the logo data distribution descriptor of the common data table information of the broadcast signal based on the acquired logo management information. The distribution information is acquired, the logo identification stored in the module from the plurality of sections specified by the acquired logo data distribution information, the logo data for each type of logo is acquired and displayed, and the received Provided is a broadcast system comprising: a reception system for acquiring the first audio signal or the second audio signal from a broadcast signal and outputting the signal at either the first transmission clock frequency or the second transmission clock frequency. Do.

  (2) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. A modularization unit which is used in a broadcasting system that is multiplexed and transmitted together with an arbitrary number of different types of logo data per logo identification, the logo data being modularized according to the logo identification and the logo type; Logo data distribution information generation for generating logo data distribution information indicating correspondence between logo type and section to be distributed for logo data And distributing logo data modularized by the modularization unit to a plurality of sections of the common data table information, and inserting the logo data distribution information into a logo data distribution descriptor of the common data table information. A second sectioning unit for generating logo transmission description information from logo management information including logo identification of the logo data and a type of logo and inserting the description description information into a logo transmission descriptor of service description table information; Multiplexing the common data table information and the service description table information generated by the first sectioning unit, the second sectioning unit, and the broadcast signal containing the first audio signal or the second audio signal; Abstract: A broadcast transmission apparatus is provided which comprises:

  (3) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. Used in a broadcast system which is large and multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification, the logo data is modularized according to the logo identification and logo type, and the modularized logo The data is distributed to a plurality of sections of the common data table information, and the section in which the logo data is distributed with the type of logo Define the logo data distribution information indicating the correspondence with the image data and insert it into the logo data distribution identifier of the common data table information, and the logo transmission description information from the logo management information including the logo identification of the logo data and the type of logo. The information is generated and inserted into the logo transmission descriptor of the service description table information, and the common data table information and the service description table information are multiplexed to the broadcast signal including the first audio signal or the second audio signal. The reception unit for receiving the broadcast signal corresponding to the transmission system to be transmitted, and the service description table information is acquired from the broadcast signal received by the reception unit, and the logo transmission identifier of the acquired service description table information is used. The logo transmission description information is extracted to acquire the logo management information, and based on the acquired logo management information, the common delineation of the broadcast signal is performed. The logo data distribution information is acquired from the logo data distribution identifier of the data table information, the logo identification stored in the module from the plurality of sections specified by the acquired logo data distribution information, and the logo data for each type of logo The logo data acquisition unit to acquire, the first audio signal or the second audio signal from the broadcast signal received by the receiver, and the first transmission clock frequency, the second transmission clock frequency And an audio signal output unit for outputting at any of the above.

  (4) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. It is used in a broadcasting system which is large in size and multiplexed with an arbitrary number of different types of logo data per logo identification, and a transmission system modularizes the logo data according to the logo identification and the logo type, and the module Distributed logo data into multiple sections of the common data table information, and distribute the logo data with the type of logo Data distribution information indicating the correspondence with the section to be inserted, and inserted in the logo data distribution descriptor of the common data table information, and logo transmission information from the logo management information including the logo identification of the logo data and the type of logo Information is generated and inserted into a logo transmission descriptor of service description table information, and the common data table information and the service description table information are multiplexed into a broadcast signal including the first audio signal or the second audio signal. , The receiving system receives the broadcast signal, acquires the service description table information, extracts the logo transmission description information from the logo transmission descriptor of the acquired service description table information, and Management information is acquired, and logo data distribution description of common data table information of the broadcast signal based on the acquired logo management information The logo data distribution information is acquired from the above, logo identification stored in the module is acquired from a plurality of sections specified by the acquired logo data distribution information, logo data for each type of logo is acquired and displayed, and the reception is performed. The present invention provides a broadcast transmission / reception method of acquiring the first audio signal or the second audio signal from the broadcast signal and outputting the signal at either the first transmission clock frequency or the second transmission clock frequency.

  (5) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. It is used in a broadcasting system that is multiplexed and transmitted together with an arbitrary number of different types of logo data per logo identification, and the logo data is modularized according to the logo identification and the logo type, and the logo is used for the logo data. Generating logo data distribution information indicating the correspondence between the type of the document and the section to be distributed, and From the logo management information including the logo identification of the logo data and the type of logo by distributing the plurality of sections of the data table information and inserting the logo data distribution information into the logo data distribution descriptor of the common data table information A broadcast signal including the first audio signal or the second audio signal, wherein logo transmission description information is generated and inserted into a logo transmission descriptor of service description table information, and the common data table information and service description table information are included. Broadcast transmission method for multiplexing and transmitting.

  (6) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies for audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. Used in a broadcast system which is large and multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification, the logo data is modularized according to the logo identification and logo type, and the modularized logo The data is distributed to a plurality of sections of the common data table information, and the section in which the logo data is distributed with the type of logo Define the logo data distribution information indicating the correspondence with the image data and insert it into the logo data distribution identifier of the common data table information, and the logo transmission description information from the logo management information including the logo identification of the logo data and the type of logo. Generating and inserting into the logo transmission descriptor of the service description table information, and multiplexing the common data table information and the service description table information into the broadcast signal including the first audio signal or the second audio signal; Corresponding to the transmission system for transmitting the multiplexed broadcast signal, the broadcast signal is received, the service description table information is acquired from the received broadcast signal, and the logo transmission identifier of the acquired service description table information The logo transmission description information is extracted to acquire the logo management information, and the broadcast signal is acquired based on the acquired logo management information. The logo data distribution information is acquired from the logo data distribution identifier of the through data table information, and the logo identification stored in the module from the plurality of sections specified by the acquired logo data distribution information, logo data for each type of logo , And acquiring the first audio signal or the second audio signal from the received broadcast signal and outputting the signal at either the first transmission clock frequency or the second transmission clock frequency. Provide a reception method.

  (7) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies for audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. A broadcasting system capable of multiplexing and transmitting an arbitrary number of different types of logo data per logo identification, wherein the logo data is modularized according to the logo identification and the logo type, and the modular logo Data is distributed to the plurality of sections of the common data table information, and logo management information including the logo identification of the logo data and the type of logo, and The logo data distribution information indicating the correspondence between the logo type and the section to be distributed is generated for the logo data and inserted into the logo transmission descriptor of the service description table information, and the common data table information and the service description table A transmission system for multiplexing and transmitting information to a broadcast signal including the first audio signal or the second audio signal, and receiving the broadcast signal to acquire the service description table information, and an acquired service The logo transmission descriptor is extracted from the description table information, and the logo management information and logo data distribution information are acquired, and distributed to the common data table information of the broadcast signal based on the acquired logo management information and logo data distribution information. The logo identification stored in the module from multiple sections to be stored, logo data for each type of logo Receiving, receiving and outputting the first audio signal or the second audio signal from the received broadcast signal at one of the first transmission clock frequency and the second transmission clock frequency. To provide a broadcast system comprising a system.

  (8) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. A modularization unit which is used in a broadcasting system that is multiplexed and transmitted together with an arbitrary number of different types of logo data per logo identification, the logo data being modularized according to the logo identification and the logo type; A first sectioning unit for distributing modularized logo data in a modularization unit to a plurality of sections of the common data table information; The logo data distribution information indicating the correspondence between the logo type and the section to be distributed is generated for the logo data, the logo management information including the logo identification of the logo data and the logo type, and the logo data distribution information A second sectioning unit for inserting in the logo transmission descriptor of the service description table information, the common data table information and the service description table information generated by the first sectioning unit and the second sectioning unit The present invention provides a broadcast transmitting apparatus comprising: a multiplexer for multiplexing and transmitting a broadcast signal including a first audio signal or the second audio signal.

  (9) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. Used in a broadcast system which is large and multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification, the logo data is modularized according to the logo identification and logo type, and the modularized logo Logo management information, including distributing data to multiple sections of the common data table information, including logo identification and logo type of the logo data And logo data distribution information indicating the correspondence between the type of logo and the section to be distributed for the logo data, and inserting it into the logo transmission descriptor of the service description table information, the common data table information and the service A receiving unit corresponding to a transmission system that multiplexes and transmits description table information to a broadcast signal including the first audio signal or the second audio signal, and is received by the receiving unit that receives the broadcast signal; Acquiring the service description table information from the broadcast signal, extracting the logo transmission descriptor from the acquired service description table information, acquiring the logo management information and the logo data distribution information, and the acquired logo management information The module from a plurality of sections distributed to common data table information of the broadcast signal based on logo data distribution information Logo identification to be stored, logo data acquisition unit for acquiring logo data for each type of logo, and the first audio signal or the second audio signal from the broadcast signal received by the reception unit The present invention provides a broadcast receiving apparatus comprising: an audio signal output unit which outputs at any one of a first transmission clock frequency and the second transmission clock frequency.

  (10) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. It is used in a broadcasting system which is large in size and multiplexed with an arbitrary number of different types of logo data per logo identification, and a transmission system modularizes the logo data according to the logo identification and the logo type, and the module Distributed logo data into multiple sections of the common data table information, including logo identification and logo type of the logo data Logo data distribution information indicating the correspondence between logo management information and the type of logo and section to be distributed for the logo data is generated and inserted into the logo transmission descriptor of the service description table information, and the common data table information And multiplexing the service description table information on a broadcast signal including the first audio signal or the second audio signal and transmitting the multiplexed signal, and a receiving system receives the broadcast signal and acquires the service description table information And extracts the logo transmission descriptor from the acquired service description table information to acquire the logo management information and logo data distribution information, and based on the acquired logo management information and logo data distribution information, Logo identification stored in the module from multiple sections distributed to common data table information, per logo type Of the first audio signal or the second audio signal from the received broadcast signal to obtain the first transmission clock frequency and the second transmission clock frequency. Providing a method of transmitting and receiving a broadcast by any one.

  (11) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. Used in a broadcast system which is large and multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification, the logo data is modularized according to the logo identification and logo type, and the modularized logo The data is distributed to a plurality of sections of the common data table information, and a section in which the logo data is distributed with the type of logo To generate logo data distribution information indicating a correspondence relationship with the image data, insert logo management information including logo identification of the logo data and type of logo, and insert the logo data distribution information into the logo transmission descriptor of the service description table information. According to another aspect of the present invention, there is provided a broadcast transmission method of multiplexing and transmitting the common data table information and the service description table information on a broadcast signal including the first audio signal or the second audio signal.

  (12) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency The first audio signal or the second audio signal exceeds one section of the common data table information, if the second audio signal can be transmitted only with the second transmission clock frequency. It is used in a broadcasting system which can transmit multiple types of logo data of different types per logo identification by size, modularize the logo data according to the logo identification and logo type, and the modularized logo Logo management information, including distributing data to multiple sections of the common data table information, including logo identification and logo types of the logo data; The logo data distribution information indicating the correspondence between the logo type and the section to be distributed is generated for the logo data and inserted into the logo transmission descriptor of the service description table information, and the common data table information and the service description table It corresponds to a transmission system for multiplexing and transmitting information to a broadcast signal including the first audio signal or the second audio signal, receives the broadcast signal, and receives the service description table from the received broadcast signal. Information is acquired, the logo transmission descriptor is extracted from the acquired service description table information, the logo management information and logo data distribution information are acquired, and the logo management information and logo data distribution information are acquired based on the acquired logo management information and logo data distribution information. Logo identification stored in the module from a plurality of sections distributed to common data table information of a broadcast signal, While acquiring and displaying logo data for each type of logo, and acquiring the first audio signal or the second audio signal from the received broadcast signal, the first transmission clock frequency, the second transmission clock frequency, Provided is a broadcast receiving method for outputting at any of transmission clock frequencies.

  (13) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies for audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only with the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-common_data_table). A broadcast system having a size exceeding one section and multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification, and determining which logo type indicates the logo data, The section number value of the MH-CDT section for distributing the logo data determined for each logo type is set, and the number of the section set for the MH-CDT is set to Go data are distributed and set in the data module area of the MH-CDT section together with the data size of the logo before division, and the set MH-CDT is included in the first audio signal or the second audio signal. A transmission system for multiplexing and transmitting a broadcast signal, receiving the broadcast signal, acquiring the MH-CDT, acquiring the logo data from the acquired section of the MH-CDT, linking and displaying, and A broadcast system comprising: a reception system that acquires the first audio signal or the second audio signal from a received broadcast signal and outputs the signal at either the first transmission clock frequency or the second transmission clock frequency Provide a system.

  (14) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies for audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only with the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-common_data_table). Used in a broadcasting system which exceeds 1 section and is multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification, and determines which logo type indicates the logo data, Set the value of the section number of the MH-CDT section that distributes the logo data determined for each logo type, and set the value of the section set for the MH-CDT to the above. A logo data processing unit is provided which distributes logo data and sets it along with the data size of the logo before division in the data module area of the MH-CDT section, and broadcast signals along with the MH-CDT set by the logo data processing unit. The present invention provides a broadcast transmission apparatus that multiplexes and transmits.

  (15) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies for audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only with the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-common_data_table). Used in a broadcasting system which exceeds 1 section and is multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification, and determines which logo type indicates the logo data, Set the value of the section number of the MH-CDT section that distributes the logo data determined for each logo type, and set the value of the section set for the MH-CDT to the above. Logo data is distributed and set in the data module area of the MH-CDT section together with the data size of the logo before division, and the set MH-CDT is included in the first audio signal or the second audio signal. A reception unit for receiving the broadcast signal, and a first acquisition unit for acquiring the MH-CDT from the received broadcast signal, corresponding to a transmission system for multiplexing the multiplexed broadcast signal and transmitting the multiplexed broadcast signal And a logo data acquisition unit for acquiring the logo data from the section of the MH-CDT acquired by the first acquisition unit, and connecting and displaying the logo data, and the first voice from the broadcast signal received by the reception unit. The present invention provides a broadcast receiving apparatus comprising: an audio signal output unit that acquires a signal or the second audio signal and outputs the signal at either the first transmission clock frequency or the second transmission clock frequency.

  (16) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only with the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-common_data_table). Used in a broadcast system which is larger than one section and multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification, and the transmission system indicates the type of logo for the logo data To determine the section number of the MH-CDT section to which the logo data is to be distributed, determined for each logo type, and the section of the number set for the MH-CDT. The logo data is distributed and set in the data module area of the MH-CDT section together with the data size of the logo before division, and the set MH-CDT is set to the first audio signal or the second audio. A broadcast signal including the signal is multiplexed, and the multiplexed broadcast signal is transmitted, and a reception system receives the broadcast signal, acquires the MH-CDT, and acquires the logo data from the acquired MH-CDT section. While acquiring, connecting and displaying, the first audio signal or the second audio signal is acquired from the received broadcast signal, and either the first transmission clock frequency or the second transmission clock frequency is obtained. To provide a method of transmitting and receiving broadcasts.

  (17) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only with the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-common_data_table). Used in a broadcasting system which exceeds 1 section and is multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification, and determines which logo type indicates the logo data, Set the value of the section number of the MH-CDT section that distributes the logo data determined for each logo type, and set the value of the section set for the MH-CDT to the above. The logo data is distributed and set in the data module area of the MH-CDT section together with the data size of the logo before division, and the set MH-CDT is the first audio signal or the second audio signal. Provided is a broadcast transmission method of multiplexing multiplexed broadcast signals to be transmitted and transmitting multiplexed broadcast signals.

  (18) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only with the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-common_data_table). Used in a broadcasting system which exceeds 1 section and is multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification, and determines which logo type indicates the logo data, Set the value of the section number of the MH-CDT section that distributes the logo data determined for each logo type, and set the value of the section set for the MH-CDT to the above. Logo data is distributed and set in the data module area of the MH-CDT section together with the data size of the logo before division, and the set MH-CDT is included in the first audio signal or the second audio signal. Signals corresponding to the transmission system for multiplexing the multiplexed broadcast signal and transmitting the multiplexed broadcast signal, receiving the broadcast signal, acquiring the MH-CDT from the received broadcast signal, and acquiring the acquired MH-CDT Acquiring the logo data from the section, concatenating and displaying the logo data, and acquiring the first audio signal or the second audio signal from the received broadcast signal to obtain the first transmission clock frequency; A broadcast receiving method for outputting at any of the two transmission clock frequencies is provided.

  (19) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-Common Data Table). A broadcast system having a size larger than one section and multiplexed with an arbitrary number of different types of logo data per logo identification, wherein the logo data is modularized according to the logo identification and the logo type, Logo data distribution indicating the correspondence between the type of logo and the MH-CDT section to be distributed by distributing the modularized logo data to a plurality of MH-CDT sections of the MH-CDT The MH-SDT (Service Description Table) is an MH-logo transmission descriptor that describes information on the MH-CDT different from the one that has distributed the logo data, and indicates logo management information including the logo identification of the logo data and the type of logo. Transmission in which the MH-CDT and the MH-SDT are multiplexed to a broadcast signal including the first audio signal or the second audio signal, and the multiplexed broadcast signal is transmitted. System, receiving the broadcast signal, acquiring the MH-SDT, extracting the logo transmission descriptor from the acquired MH-SDT, acquiring the logo management information, and acquiring the logo according to the acquired logo management information The MH-CDT section including data distribution information is acquired, and logo identification stored in the module from a plurality of CDT sections distributed to the MH-CDT of the broadcast signal based on the logo data distribution information, for each type of logo Acquire logo data and receive And an audio signal output unit for acquiring the first audio signal or the second audio signal from the broadcast signal and outputting the signal at either the first transmission clock frequency or the second transmission clock frequency. Provided is a broadcast system comprising a reception system.

  (20) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies for audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-Common Data Table). Used in a broadcasting system that is multiplexed with an arbitrary number of different types of logo data per one logo identification, and the modularization of the logo data according to the logo identification and logo types. A modularization unit and an MH-CDT section for distributing modularized logo data in the modularization unit to a plurality of MH-CDT sections of the MH-CDT and distributed with the type of the logo Logo data division information indicating the correspondence relationship with the version data, MH-CDT sectioning section which inserts the logo data into the MH-CDT different from the distribution of the logo data, and logo management including logo identification and logo type of the logo data MH-logo transmission descriptor generating unit for generating MH-logo transmission descriptor indicating information, and MH-SDT sectioning describing the MH-logo transmission descriptor in the descriptor area of MH-SDT (Service Description Table) And MH-CDT sectioning section, MH-CDT and MH-SDT generated by the MH-SDT sectioning section are multiplexed in the first audio signal or the broadcast signal including the second audio signal. And a multiplexer for transmitting the broadcast signal.

  (21) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-Common Data Table). Used in a broadcasting system which is multiplexed with an arbitrary number of different types of logo data per logo identification, and which is larger than one section), the logo data is modularized according to the logo identification and logo type, The logo data portion indicating the correspondence between the type of logo and the MH-CDT section to be distributed by distributing the modularized logo data to a plurality of MH-CDT sections of the MH-CDT The MH-SDT (Service Description Table) describes the distribution information in the MH-CDT different from the one in which the logo data is distributed, and indicates the logo management information including the logo identification of the logo data and the type of the logo. And the MH-CDT and the MH-SDT are multiplexed to the broadcast signal including the first audio signal or the second audio signal, and the multiplexed broadcast signal is transmitted. The MH-SDT is acquired from the broadcast signal received by the reception unit that corresponds to the transmission system and receives the broadcast signal, and the MH-logo transmission descriptor is extracted from the acquired MH-SDT. And acquires the logo management information, acquires an MH-CDT section including logo data distribution information of the broadcast signal based on the acquired logo management information, and arranges a logo of a desired type according to the logo data distribution information. Get the collected MH-CDTs and distribute them to the MH-CDTs Logo identification stored in the module from the MH-CDT section, a logo data acquisition unit for acquiring and displaying logo data for each logo type, and the first audio signal or the second audio signal from the received broadcast signal The present invention provides a broadcast receiving apparatus comprising: an audio output unit configured to obtain an audio signal of and output at one of the first transmission clock frequency and the second transmission clock frequency.

  (22) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-Common Data Table). Used in a broadcast system that is multiplexed with an arbitrary number of different types of logo data per logo identification, and the transmission system uses the logo data as the logo identification and logo type. Modularize and distribute the modularized logo data to multiple MH-CDT sections of the MH-CDT, showing the correspondence between the type of logo and the MH-CDT sections to be distributed The MH data transfer information is described on the MH-CDT different from the one used to distribute the logo data, and the MH-logo transmission descriptor indicating the logo management information including the logo identification of the logo data and the logo type is MH-SDT (Service Description field in the descriptor area of the description table), the MH-CDT and the MH-SDT are multiplexed and transmitted to the broadcast signal including the first audio signal or the second audio signal, and the reception system is The broadcast signal is received, the MH-SDT is acquired, the logo transmission descriptor is extracted from the acquired MH-SDT, the logo management information is acquired, and logo data distribution information is acquired according to the acquired logo management information. Obtain an MH-CDT section containing the logo data stored in the module from multiple CDT sections distributed to the MH-CDT of the broadcast signal based on logo data distribution information, logo data for each type of logo Get and display, as well as before The present invention provides a broadcast transmitting and receiving method for acquiring the first audio signal or the second audio signal from the received broadcast signal and outputting the signal at either the first transmission clock frequency or the second transmission clock frequency. Do.

  (23) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-Common Data Table). Used in a broadcasting system which is multiplexed with an arbitrary number of different types of logo data per logo identification, and which is larger than one section), the logo data is modularized according to the logo identification and logo type, The logo data portion indicating the correspondence between the type of logo and the MH-CDT section to be distributed by distributing the modularized logo data to a plurality of MH-CDT sections of the MH-CDT The distribution information is inserted into the MH-CDT different from the one for distributing the logo data, and the MH-logo transmission descriptor indicating the logo management information including the logo identification of the logo data and the type of the logo is generated, A transmission descriptor is described in a descriptor area of MH-SDT (Service Description Table), and the MH-CDT and MH-SDT are multiplexed to the first audio signal or the broadcast signal including the second audio signal. Provided is a broadcast transmission method for transmission.

  (24) There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies for audio signal transmission, and the first audio signal is transmitted at both the first transmission clock frequency and the second transmission clock frequency If it is possible that the second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal may be MH-CDT (MH-Common Data Table). Used in a broadcasting system which is multiplexed with an arbitrary number of different types of logo data per logo identification, and which is larger than one section), the logo data is modularized according to the logo identification and logo type, The logo data portion indicating the correspondence between the type of logo and the MH-CDT section to be distributed by distributing the modularized logo data to a plurality of MH-CDT sections of the MH-CDT The MH-SDT (Service Description Table) describes the distribution information in the MH-CDT different from the one in which the logo data is distributed, and indicates the logo management information including the logo identification of the logo data and the type of the logo. And a transmission system for multiplexing the MH-CDT and the MH-SDT into a broadcast signal including the first audio signal or the second audio signal and transmitting the multiplexed signal. A broadcast signal is received, the MH-SDT is acquired from the received broadcast signal, the MH-logo transmission descriptor is extracted from the acquired MH-SDT, the logo management information is acquired, and acquired The MH-CDT section including logo data distribution information of the broadcast signal is acquired based on logo management information, and the MH-CDT in which the desired type of logo is arranged is acquired by the logo data distribution information, and the MH-CDT is acquired. Stored in the module from multiple MH-CDT sections to be distributed Identification and logo data for each type of logo are obtained and displayed, and the first audio signal or the second audio signal is obtained from the received broadcast signal to obtain the first transmission clock frequency The present invention provides a broadcast receiving method for outputting at any of the second transmission clock frequencies.

  (25) In any one of (3), (9), (15), and (21), an externally connected audio device is further provided in a first mode corresponding only to the first transmission clock frequency, and The audio device is classified into a second mode corresponding to both of the transmission clock frequency of 1 and the second transmission clock frequency, and the audio device to be connected is in the first mode and the received audio signal is the first voice. If it is a signal, it outputs the audio signal according to the first transmission clock frequency, the connected audio device is in the second mode, and the received audio signal is the first audio signal. The present invention provides a broadcast receiving apparatus comprising: a control unit that determines the transmission clock frequency to output the audio signal according to the second transmission clock frequency.

  (26) In (25), the first mode is a mode in which the transmission clock frequency of the output interface is available only at 48 kHz, and the second mode is a mode in which both 48 kHz and 96 kHz are available. Providing a receiver.

  (27) In (25), there is provided a broadcast receiving apparatus further comprising a graphical user interface (GUI) processing unit for the user to select the first mode and the second mode.

  (28) In (25), when the control unit uses HDMI (High Definition Multimedia Interface) for connection with the audio device, the control unit specifies Extended Display Identification Data (EDID) or HDMI-CEC (High IDC) defined by the HDMI. The present invention provides a broadcast receiving apparatus that automatically determines whether to adopt the first mode or the second mode based on information of Definition Multimedia Interface (Consumer Electronics Control).

  (29) In (28), when it is detected from the information of EDID or HDMI-CEC of the HDMI that the audio device can handle MPEG4-ALS, the control unit performs the second mode. To provide a broadcast receiver to be adopted.

  (30) In (28), when it is detected that the audio device can handle the MPEG4-AAC 22.2 channel from the information of the HDMI EDID or HDMI-CEC, the control unit is configured to perform the second operation. Provided is a broadcast receiver adopting a mode.

  (31) In (25), the control unit is a first audio signal that can transmit an audio signal received from the broadcast at any of the first transmission clock frequency and the second transmission clock frequency. In one case, when the second mode is selected, the transmission clock frequency is determined to output the received first audio signal to the audio device using the second transmission clock frequency, The second mode is selected when a second audio signal that can not be transmitted other than the second transmission clock frequency is continuously broadcast after the first audio signal is broadcast; The broadcast receiving apparatus determines the transmission clock frequency such that the second audio signal is also output to the audio device at the second transmission clock frequency following the one audio signal. That.

  (32) In (25), the control unit selects the first mode when the audio signal received from the broadcast is a second audio signal that can not be transmitted at frequencies other than the second transmission clock frequency. In the case where there are broadcasts, another audio signal that can be transmitted at the first transmission clock frequency in the signal received from the broadcast is selected and controlled to be output to the audio device at the first transmission clock frequency Providing a receiver.

  In (33) and (25), the control unit is configured to use a first mode in which only the first transmission clock frequency is available, and a second mode in which the first and second transmission clock frequencies are available. In addition, when the first, second and third transmission clock frequencies comprise the available third mode, the relationship between the first mode and the second mode is the same as the first mode and the third mode. The present invention provides a broadcast receiving apparatus that applies to the relationship between the mode and the relationship between the second mode and the third mode.

  (34) In any one of (6), (12), (18), and (24), an externally connected audio device is provided in a first mode corresponding to only the first transmission clock frequency, and the first mode. An audio device is classified into a second mode corresponding to both the transmission clock frequency and the second transmission clock frequency, and the connected audio device is in the first mode, and the received audio signal is the first audio signal. In some cases, the audio signal is output according to the first transmission clock frequency, and the connected audio device is in the second mode, and the received audio signal is the first audio signal. A broadcast receiving method for determining the transmission clock frequency to output the audio signal according to the transmission clock frequency.

  (35) In (34), the first mode is a mode in which the transmission clock frequency of the output interface is available only at 48 kHz, and the second mode is a mode in which both 48 kHz and 96 kHz are available. Provide a reception method.

  (36) In (34), a broadcast reception method is provided, in which the first mode and the second mode are selected by a user's designated operation input.

  (37) In (34), when using High Definition Multimedia Interface (HDMI) for connection with the audio device, Extended Display Identification Data (EDID) defined by the HDMI or High Definition Multimedia Interface-Consumer with HDMI-CEC (Consumer) According to the information of Electronics Control, it is automatically determined whether to adopt the first mode or the second mode, and a broadcast reception method is provided which switches appropriately.

  (38) In (37), a broadcast receiving method employing the second mode when it is detected that the audio device can handle MPEG4-ALS from the information of the HDMI EDID or HDMI-CEC. I will provide a.

  (39) In (37), when it is detected from the information in the HDMI EDID or HDMI-CEC that the audio device can handle the MPEG4-AAC 22.2 ch, the broadcast adopting the second mode Provide a reception method.

  (40) In (34), in the case where the audio signal received from the broadcast is a first audio signal that can be transmitted at any of the first transmission clock frequency and the second transmission clock frequency, Determining the transmission clock frequency to output the received first audio signal to the audio device using the second transmission clock frequency when the second mode is selected; When a second audio signal that can not be transmitted other than the second transmission clock frequency is continuously broadcast after an audio signal is broadcast, the second audio signal is selected as the first audio signal when the second mode is selected. Subsequently, the second audio stream is also output to the audio device at the second transmission clock frequency, and the broadcast receiving method for determining the transmission clock frequency is provided.

  (41) In (34), when the audio signal received from the broadcast is a second audio signal that can not be transmitted except at the second transmission clock frequency, the first mode is selected, A broadcast receiving method is provided that selects another audio signal that can be transmitted at the first transmission clock frequency in a signal received from broadcast and outputs the selected audio signal to the audio device at the first transmission clock frequency. .

  (42) (34) In addition to a first mode in which only the first transmission clock frequency is available, and a second mode in which the first and second transmission clock frequencies are available, first and second A third mode is available wherein a third transmission clock frequency is available, wherein a relationship between the first mode and the second mode is a relationship between the first mode and the third mode, the second The present invention provides a broadcast receiving method that applies to the relationship between the mode of and the third mode.

  Although the above (25) to (42) have been applied to the broadcast receiving apparatus and the broadcast receiving method, respectively, the configuration can also be applied to a broadcast system, a broadcast transmitting apparatus, and a broadcast transmitting method. .

  While certain embodiments have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

  1, 1a: Broadcast receiving apparatus, 11: demodulation unit, 12: TLV / MMT separation unit, 13: voice selection control unit, 14: decoder, 15: DMIX unit, 16: switching unit, 17: DAC, 18: voice output 19: external output interface 1A: video processing unit 1B: GUI display unit 1C: operation input unit 2: AV amplifier 3: display device

  101: logo data modularization unit 102: CDT sectioning unit 103: logo data distribution descriptor generating unit 104: logo transmission descriptor generating unit 105: SDT sectioning unit 106: multiplexing unit 21: logo Data modularization unit 22 MH-CDT sectioning unit 23 MH-logo transmission descriptor generating unit 24 MH-SDT sectioning unit 25 MMT multiplexing unit 201 transmission line decoding unit 202 Module I / F unit 203 Section processing unit 204 TS processing unit 205 Video decoding unit 206 Audio processing unit 207 OSD processing unit 208 Communication I / F unit 209 Operation unit 210 ... NVRAM, 211 ... ROM, 212 ... RAM, 213 ... CPU, 214 ... descrambler, 215 ... storage unit, 216 ... bus.

Claims (8)

There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal can be transmitted at both the first transmission clock frequency and the second transmission clock frequency. The second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal having a size exceeding one section of the common data table information , Used in a broadcast system multiplexed with any number of different types of logo data per logo identification,
A modularization unit that modularizes the logo data according to the logo identification and the logo type;
A logo data distribution information generation unit that generates logo data distribution information indicating the correspondence between the logo type and the section to be distributed for the logo data;
A first section for distributing logo data modularized by the modularization unit to a plurality of sections of the common data table information and inserting the logo data distribution information into a logo data distribution descriptor of the common data table information Department,
A second sectioning unit for generating logo transmission description information from logo management information including logo identification and logo type of the logo data and inserting it into a logo transmission descriptor of service description table information;
Multiplexing the common data table information and the service description table information generated by the first sectioning unit, the second sectioning unit, and the broadcast signal containing the first audio signal or the second audio signal; A broadcast transmission apparatus comprising: There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal can be transmitted at both the first transmission clock frequency and the second transmission clock frequency. The second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal having a size exceeding one section of the common data table information , Used in a broadcast system multiplexed with any number of different types of logo data per logo identification,
Modularize the logo data according to the logo identification and logo type,
Generating logo data distribution information indicating correspondence between the logo type and the section to be distributed for the logo data;
Distributing the modularized logo data into a plurality of sections of the common data table information and inserting the logo data distribution information into a logo data distribution descriptor of the common data table information;
The logo transmission description information is generated from the logo management information including the logo identification of the logo data and the type of logo, and is inserted into the logo transmission descriptor of the service description table information,
A broadcast transmission method of multiplexing and transmitting the common data table information and the service description table information on a broadcast signal including the first audio signal or the second audio signal. There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal can be transmitted at both the first transmission clock frequency and the second transmission clock frequency. The second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal having a size exceeding one section of the common data table information , Used in a broadcast system multiplexed with any number of different types of logo data per logo identification,
A modularization unit that modularizes the logo data according to the logo identification and the logo type;
A first sectioning unit that distributes logo data modularized by the modularization unit to a plurality of sections of the common data table information;
The logo data distribution information indicating the correspondence between the logo type and the section to be distributed is generated for the logo data, the logo management information including the logo identification of the logo data and the logo type, and the logo data distribution information A second sectioning unit to be inserted into a logo transmission descriptor of service description table information;
Multiplexing the common data table information and the service description table information generated by the first sectioning unit, the second sectioning unit, and the broadcast signal containing the first audio signal or the second audio signal; A broadcast transmitting apparatus comprising: a multiplexing unit for transmitting. There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal can be transmitted at both the first transmission clock frequency and the second transmission clock frequency. The second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal having a size exceeding one section of the common data table information , Used in a broadcast system multiplexed with any number of different types of logo data per logo identification,
Modularize the logo data according to the logo identification and logo type,
Distributing the modularized logo data to a plurality of sections of the common data table information;
The logo data distribution information indicating the correspondence between the logo type and the section to be distributed is generated for the logo data, the logo management information including the logo identification of the logo data and the logo type, and the logo data distribution information Insert in the logo transmission descriptor of the service description table information,
A broadcast transmission method of multiplexing and transmitting the common data table information and the service description table information on a broadcast signal including the first audio signal or the second audio signal. There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal can be transmitted at both the first transmission clock frequency and the second transmission clock frequency. The second audio signal or the second audio signal may transmit one section of the MH-CDT (MH-common_data_table) when the second audio signal can be transmitted only at the second transmission clock frequency. It is used for a broadcast system that is oversized and multiplexed with an arbitrary number of different types of logo data per logo identification,
With regard to the logo data, it is determined which type of logo indicates, and the value of the section number of the MH-CDT section to which the logo data determined for each logo type is distributed is set to the MH-CDT. And a logo data processing unit configured to distribute and arrange the logo data in the section of the number set for the section and to set the data module area of the MH-CDT section together with the data size of the logo before division.
A broadcast transmitting apparatus which multiplexes the MH-CDT set by the logo data processing unit with a broadcast signal and transmits the multiplexed signal. There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal can be transmitted at both the first transmission clock frequency and the second transmission clock frequency. The second audio signal or the second audio signal may transmit one section of the MH-CDT (MH-common_data_table) when the second audio signal can be transmitted only at the second transmission clock frequency. It is used for a broadcast system that is oversized and multiplexed with an arbitrary number of different types of logo data per logo identification,
With regard to the logo data, it is determined which type of logo indicates, and the value of the section number of the MH-CDT section to which the logo data determined for each logo type is distributed is set to the MH-CDT. The logo data is distributed and arranged in the section of the number set corresponding to it, and is set together with the data size of the logo before division in the data module area of the MH-CDT section,
A broadcast transmission method of multiplexing the set MH-CDT on a broadcast signal including the first audio signal or the second audio signal, and transmitting the multiplexed broadcast signal. There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal can be transmitted at both the first transmission clock frequency and the second transmission clock frequency. The second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal is one of MH-CDT (MH-Common Data Table). It is used in a broadcasting system which is larger than a section and multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification,
A modularization unit that modularizes the logo data according to the logo identification and the logo type;
The logo data distributed in the modularization section is distributed to a plurality of MH-CDT sections of the MH-CDT, and logo data distribution information indicating the correspondence between the type of logo and the MH-CDT section to be distributed MH-CDT sectioning unit to insert into MH-CDT different from the one which distributed logo data,
An MH-logo transmission descriptor generation unit that generates an MH-logo transmission descriptor indicating logo management information including logo identification and logo type of the logo data;
MH-SDT sectioning unit which describes the MH-logo transmission descriptor in a descriptor area of MH-SDT (Service Description Table);
The MH-CDT sectioning unit, MH-CDT and MH-SDT generated by the MH-SDT sectioning unit are multiplexed and transmitted to the first audio signal or the broadcast signal including the second audio signal. A broadcast transmission apparatus comprising: There are a first transmission clock frequency and a second transmission clock frequency as transmission clock frequencies of audio signal transmission, and the first audio signal can be transmitted at both the first transmission clock frequency and the second transmission clock frequency. The second audio signal can be transmitted only at the second transmission clock frequency, the first audio signal or the second audio signal is one of MH-CDT (MH-Common Data Table). It is used in a broadcasting system which is larger than a section and multiplexed and transmitted with an arbitrary number of different types of logo data per logo identification,
Modularize the logo data according to the logo identification and logo type,
The modularized logo data is distributed to a plurality of MH-CDT sections of the MH-CDT, and logo data distribution information indicating the correspondence between the type of logo and the MH-CDT section to be distributed is distributed Insert it into a different MH-CDT,
Generating an MH-logo transmission descriptor indicating logo management information including logo identification and logo type of the logo data;
The MH-logo transmission descriptor is described in a descriptor area of an MH-SDT (Service Description Table), and the MH-CDT and MH-SDT are broadcasts including the first audio signal or the second audio signal. Broadcast transmission method of multiplexing and transmitting on a signal.

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