WO2014109322A1 - 電子機器、データブロックの送信方法、送信信号の内容決定方法および送受信システム - Google Patents
電子機器、データブロックの送信方法、送信信号の内容決定方法および送受信システム Download PDFInfo
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- WO2014109322A1 WO2014109322A1 PCT/JP2014/050093 JP2014050093W WO2014109322A1 WO 2014109322 A1 WO2014109322 A1 WO 2014109322A1 JP 2014050093 W JP2014050093 W JP 2014050093W WO 2014109322 A1 WO2014109322 A1 WO 2014109322A1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/006—Details of the interface to the display terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/4508—Management of client data or end-user data
- H04N21/4516—Management of client data or end-user data involving client characteristics, e.g. Set-Top-Box type, software version or amount of memory available
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/04—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
- G09G2370/042—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller for monitor identification
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/04—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
- G09G2370/045—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller using multiple communication channels, e.g. parallel and serial
- G09G2370/047—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller using multiple communication channels, e.g. parallel and serial using display data channel standard [DDC] communication
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- G09G2370/06—Consumer Electronics Control, i.e. control of another device by a display or vice versa
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- G—PHYSICS
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- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
Definitions
- the present technology relates to an electronic device, a data block transmission method, a transmission signal content determination method, and a transmission / reception system.
- HDMI High Definition Multimedia Interface
- CE Consumer Electronics
- a system configuration in which an HDMI repeater (HDMI Repeater) exists on a path between the HDMI source (HDMI Source) and the HDMI sink (HDMI Sink) is also conceivable (see, for example, Patent Document 1).
- the HDMI repeater existing between the HDMI sink and the HDMI source does not understand the content of the VSDB. May be sent to the source.
- the unique function expansion includes a change in the PHY (physical layer) specification and support for new applications.
- Possible changes to the PHY specification include an increase in transmission rate, an increase in the number of transmission lanes, a change in coding method, a change in signal amplitude, a change in clock transmission method, support for bidirectional transmission, and a data transmission mode other than video. It is done. Also, new applications include new 3D format support or new 3D video transmission method, new video format support or transmission method, new audio transmission method, high-efficiency video transmission method, and new inter-device control method. Correspondence to is considered.
- the HDMI source may output a content signal in accordance with the capability indicated by VSDB, and may damage an HDMI repeater that does not support the expansion function. There is.
- FIG. 9 is a schematic diagram showing an operation expected originally in a transmission / reception system including a source device, a repeater device, and a sink device.
- “PA” attached to each device indicates a physical address.
- the source device, repeater device, and sink device all support the extended function.
- the sink device declares it on the HDMI VSDB in order to notify the upstream of its corresponding status regarding functions defined in the conventional HDMI. Similarly, the sink device declares on the vendor VSDB (Vendor VSDB) whether or not the vendor (Vendor) has an extension function.
- the repeater device receives the HDMI VSDB and the vendor VSDB from the sink device.
- the repeater device adds / changes the received HDMI VSDB and vendor VSDB in consideration of its own capability and response in addition to the capability / response status declared in the sink device, and transmits / notifies it to the source device.
- the source device determines the signal to be output based on the contents of the HDMI VSDB and the vendor VSDB received from the repeater device. If necessary, the source device transmits the HDMI VSIF (Vendor Specific InfoFrame) and the vendor VSIF (Vendor VSIF). Then, transmission is performed while notifying the contents of the output signal to downstream devices (repeater device and sink device). At this time, the repeater device passes through the VSIF received from the source device to the sink device without changing the contents thereof.
- HDMI VSIF Vendor Specific InfoFrame
- vendor VSIF Vendor VSIF
- FIG. 10 is a schematic diagram illustrating a problem that may occur in a transmission / reception system including a source device, a repeater device, and a sink device.
- “PA” attached to each device indicates a physical address.
- the source device and the sink device support the extended function, but the repeater device does not support the extended function.
- the sink device declares it on the HDMI VSDB in order to notify the upstream of its corresponding status regarding functions defined in the conventional HDMI. Similarly, the sink device declares on the vendor VSDB whether or not the vendor (Vendor) has an extension function.
- the repeater device receives the HDMI VSDB and the vendor VSDB from the sink device.
- the repeater device can understand the contents of the HDMI VSDB. Therefore, in addition to the capability / support status of the sink device declared there, the repeater device considers the received HDMI VSDB in view of its own capability and response. Append / change and send / notify to source device.
- the repeater device since the repeater device cannot understand the contents of the vendor VSDB, the repeater device transmits and notifies the source device as it is without adding / changing the content.
- the source device determines the signal to be output based on the contents of the received HDMI VSDB and vendor VSDB, and if necessary, transmits the HDMI VSIF and vendor VSIF to downstream devices (repeater devices and sink devices). Transmission is performed while notifying the contents of the output signal.
- the repeater device passes through the VSIF received from the source device to the sink device without changing the contents.
- functions added by the vendor VSDB and the vendor VSIF do not affect the functions even if they are not understood by the repeater device.
- the repeater device is intended to correspond to sink devices and source devices of more manufacturers, no major problem occurs even in the above situation.
- a signal receiving unit for receiving a signal from an external device via a transmission path;
- a storage unit for storing a data block including capability information indicating presence / absence of support for an extended function;
- An information transmission unit that transmits the stored data block to the external device via the transmission path;
- In the data block there is an electronic device in which a layer field representing the connection hierarchy is arranged.
- a signal is received from an external device via a transmission path by the signal receiving unit.
- the storage unit stores a data block including capability information indicating whether or not the extended function is supported.
- a layer field representing a connection hierarchy is arranged.
- storage part by the information transmission part is transmitted to an external apparatus via a transmission line.
- the function expansion includes a change of PHY (physical layer) specification, a response to a new application, and the like.
- Changes in the PHY specification include an increase in transmission rate, an increase in the number of transmission lanes, a change in coding method, a change in signal amplitude, a change in clock transmission method, support for bidirectional transmission, a data transmission mode other than video, and the like.
- new applications are supported by new 3D format or new 3D video transmission method, new video format correspondence or transmission method, new audio transmission method, high-efficiency video transmission method, and new inter-device control method. It is correspondence of.
- the signal receiving unit may receive a signal from an external device via a transmission line using a differential signal.
- the transmission path may be an HDMI cable
- the data block may be a vendor VSDB.
- an image display unit that displays an image on the image display element based on a video signal included in the signal received by the reception unit may be further provided.
- the layer field representing the connection hierarchy is arranged in the data block including the capability information indicating whether or not the extended function is transmitted to the external device. Therefore, if the external device is an electronic device that exists between the electronic device that outputs the signal, the layer field value is incremented by the electronic device only when the contents of the data block can be understood. Can determine whether all devices on the path support the extended function. The electronic device that outputs the signal can determine the content of the transmission signal based on the determination result, and can avoid damaging the electronic device that does not support the extended function on the path. .
- a signal transmission unit for transmitting a signal to an external device via a transmission path;
- An information receiving unit that receives a data block including capability information that indicates whether or not to support an extended function, sent from the external device via the transmission path,
- the data block has a layer field that represents the connection hierarchy,
- the electronic device further includes a control unit that determines whether all devices on the route support the extended function based on the value of the layer field and determines the content of the transmitted signal.
- the signal transmission unit transmits a signal to an external device via a transmission path.
- the information transmission unit receives a data block including capability information indicating whether or not the extended function is supported, which is transmitted from the external device via the transmission path.
- a layer field representing a connection hierarchy is arranged.
- the control unit determines whether all devices on the path support the extended function based on the value of the layer field arranged in the data block, and determines the content of the signal to be transmitted. For example, the control unit is configured to determine whether all devices on the route support the extended function according to whether the value of the layer field corresponds to the number of devices on the route. Also good. In this case, for example, the control unit may recognize the number of devices on the path based on the physical address of its own device.
- the signal transmission unit may be configured to transmit a signal to the external device via a transmission path using a differential signal.
- the transmission path may be an HDMI cable
- the data block may be a vendor VSDB.
- a signal output unit that outputs a signal may be further provided.
- the signal output unit may be a disc playback unit.
- the present technology it is determined whether all devices on the path support the extended function based on the value of the layer field arranged in the data block, and the transmission is performed based on the determination result.
- the content of the signal to be determined is determined. Therefore, it is possible to avoid damaging an electronic device that does not support the extended function existing on the route.
- an information transmission unit that transmits content information indicating the content of the determined signal to an external device via a transmission path may be further provided.
- the information transmission unit may be configured to insert the content information into a blanking period of a video signal constituting the signal and transmit the content information.
- the electronic device that receives the signal can easily grasp the signal content based on the content information.
- An information processing unit that processes the received data block according to whether or not the contents of the received data block can be understood
- the signal receiving unit receives a signal from the first external device via the transmission line, and the signal received by the signal transmission unit is transmitted to the second external device via the transmission line.
- the data block including the capability information indicating the presence / absence of the support for the extended function, which is sent from the second external device via the transmission path by the information receiving unit, and in which the layer field indicating the connection hierarchy is arranged Received.
- the signal receiving unit receives a signal from the first external device via a transmission line using a differential signal
- the signal transmission unit receives the signal from the first external device via a transmission line using a differential signal.
- the transmission path may be an HDMI cable
- the data block may be a vendor VSDB.
- the information transmission unit transmits the data block output from the information processing unit to the first external device via the transmission path.
- the received data block is output after at least processing for changing the value of the layer field, and the content of the data block cannot be understood.
- the received data block is output as it is.
- the process of changing the value of the layer field may be a process of incrementing the value of the layer field.
- the process of changing the value of the layer field may be a process of setting its own layer bit of the layer field.
- the value of the layer field arranged in the data block transmitted from the second electronic device to the first electronic device is changed only when the contents of the data block can be understood. Therefore, an electronic device that outputs a signal can determine whether all devices on the path support the extended function based on the value of this layer field. The electronic device that outputs the signal can determine the content of the transmission signal based on the determination result, and can avoid damaging the electronic device that does not support the extended function on the path. .
- This technology can avoid damaging non-compliant devices during function expansion.
- FIG. 1 shows a configuration example of a transmission / reception system 10 as an embodiment.
- the transmission / reception system 10 includes a BD (Blu-ray disc) player 100 as a source device, an AV amplifier 200 as a repeater device, and a television receiver 300 as a sink device.
- BD Blu-ray disc
- the BD player 100 is provided with an HDMI terminal 101 to which an HDMI transmission unit (HDMI TX) 102 is connected.
- the television receiver 300 is provided with an HDMI terminal 301 to which an HDMI receiving unit (HDMI RX) 302 is connected.
- the AV amplifier 200 is provided with an HDMI terminal 201a to which an HDMI receiving unit (HDMI) RX) 202a is connected, and an HDMI terminal 201b to which an HDMI transmitting unit (HDMI TX) 202b is connected. .
- the BD player 100 and the AV amplifier 200 are connected via an HDMI cable 401. That is, one end of the HDMI cable 401 is connected to the HDMI terminal 101 of the BD player 100, and the other end of the HDMI cable 401 is connected to the HDMI terminal 201 a of the AV amplifier 200.
- the AV amplifier 200 and the television receiver 300 are connected via an HDMI cable 402. That is, one end of the HDMI cable 402 is connected to the HDMI terminal 201 b of the AV amplifier 200, and the other end of the HDMI cable 402 is connected to the HDMI terminal 301 of the television receiver 300.
- FIG. 2 shows a configuration example of the transmission system in the transmission / reception system 10 shown in FIG. 1, that is, the HDMI transmission unit 510 (HDMI transmission units 102 and 202b) and the HDMI reception unit 520 (HDMI reception units 202a and 302).
- the HDMI transmission unit 510 transmits a differential signal corresponding to uncompressed video data for one screen to the HDMI reception unit 520 in one direction in a plurality of channels in an effective image section (also referred to as an “active video section”). Send.
- the effective image section is a section obtained by removing a horizontal blanking section and a vertical blanking section from a section from a certain vertical synchronizing signal to the next vertical synchronizing signal.
- the HDMI transmission unit 510 transmits a differential signal corresponding to at least audio data, control data, other auxiliary data, etc. associated with video data over a plurality of channels in a horizontal blanking interval or a vertical blanking interval. Transmit to the receiving unit 520 in one direction.
- the HDMI receiving unit 520 receives a differential signal corresponding to video data transmitted in one direction from the HDMI transmitting unit 510 through a plurality of channels in the active video section. Also, the HDMI receiving unit 520 transmits differential signals corresponding to audio data and control data transmitted in one direction from the HDMI transmitting unit 510 through a plurality of channels in a horizontal blanking interval or a vertical blanking interval. Receive.
- the transmission channels of the transmission system including the HDMI transmission unit 510 and the HDMI reception unit 520 include the following. First, there are differential signal channels (TMDS channel, TMDS clock channel) as transmission channels. There are three differential signal channels for transmitting digital signals such as video data.
- TMDS channel differential signal channels
- TMDS clock channel differential signal channels
- This differential signal channel will be described.
- three TMDSs as transmission channels for serially transmitting video data and audio data in one direction in synchronization with the TMDS clock from the HDMI transmitting unit 510 to the HDMI receiving unit 520.
- the HDMI transmitter of the HDMI transmission unit 510 converts, for example, uncompressed video data into corresponding differential signals, and is connected via the HDMI cable 400 with three TMDS channels # 0, # 1, and # 2. Serial transmission is performed in one direction to the HDMI receiving unit 520.
- the HDMI transmitter converts audio data accompanying the uncompressed video data, necessary control data and other auxiliary data into corresponding differential signals, and uses three TMDS channels # 0, # 1, and # 2. Then, serial transmission is performed in one direction to the HDMI receiving unit 520 connected via the HDMI cable 400.
- the HDMI transmitter transmits the TMDS clock synchronized with the video data transmitted through the three TMDS channels # 0, # 1, and # 2 to the HDMI receiving unit 520 connected via the HDMI cable 400 using the TMDS clock channel.
- the HDMI receiver of the HDMI receiving unit 520 transmits a differential signal corresponding to video data, audio data, and control data transmitted in one direction from the HDMI transmitting unit 510 via TMDS channels # 0, # 1, and # 2.
- a corresponding differential signal is received in synchronization with the TMDS clock.
- This TMDS clock is a TMDS clock transmitted from the HDMI transmission unit 510.
- transmission channels of the transmission system include transmission channels called DDC (Display Data Channel) and CEC lines in addition to the TMDS channel and the TMDS clock channel described above.
- the DDC includes two signal lines (not shown) included in the HDMI cable 400.
- the DDC is used by the HDMI transmitting unit 510 to read E-EDID (Enhanced Extended Display Identification Data) from the HDMI receiving unit 520.
- E-EDID Enhanced Extended Display Identification Data
- the HDMI receiving unit 520 has an EDID ROM (EEPROM) that stores E-EDID, which is information related to its own capability (Configuration / capability), in addition to the HDMI receiver.
- E-EDID is information related to its own capability (Configuration / capability)
- the HDMI transmission unit 510 reads the E-EDID from the HDMI reception unit 520 connected via the HDMI cable 400 via the DDC.
- the HDMI transmission unit 510 sends the read E-EDID to the control unit.
- the control unit stores this E-EDID in a flash ROM or DRAM (not shown).
- the control unit can recognize the setting of the capability of the HDMI receiving unit 520 based on the E-EDID.
- the CEC line is composed of one signal line (not shown) included in the HDMI cable 400, and is used for bidirectional communication of control data between the HDMI transmission unit 510 and the HDMI reception unit 520.
- the HDMI cable 400 includes a line (HPD line) connected to a pin called HPD (Hot Plug Detect).
- HPD Hot Plug Detect
- This HPD line is also used as a HEAC-line that constitutes a bidirectional communication path.
- the HDMI cable 400 includes a power line (+ 5V Power Line) used for supplying power from the source device to the sink device.
- the HDMI cable 400 includes a utility line. This utility line is also used as a HEAC + line constituting a bidirectional communication path.
- FIG. 3 shows an example of the structure of TMDS transmission data.
- FIG. 3 shows sections of various transmission data when image data of horizontal ⁇ vertical B pixels ⁇ A lines is transmitted in TMDS channels # 0 to # 2.
- the video field period is a period from the rising edge (active edge) of a certain vertical synchronizing signal to the rising edge of the next vertical synchronizing signal.
- This video field section is divided into a horizontal blanking period (horizontal blanking), a vertical blanking period (vertical blanking), and an active video section (Active Video).
- a video data section that is a section obtained by removing the horizontal blanking period and the vertical blanking period from the video field section is assigned to the active video section.
- B pixel (pixel) ⁇ A line effective pixel (Active pixel) data constituting uncompressed image data for one screen is transmitted.
- Data island section and control section are assigned to horizontal blanking period and vertical blanking period.
- auxiliary data (Auxiliary data) is transmitted. That is, the data island period is assigned to a part of the horizontal blanking period and the vertical blanking period. In this data island period, for example, audio data packets that are not related to the control among the auxiliary data are transmitted.
- the control period is allocated to other parts of the horizontal blanking period and the vertical blanking period. In this control period, for example, vertical synchronization signals, horizontal synchronization signals, control packets, and the like, which are data related to control, of auxiliary data are transmitted.
- the BD player 100 has a disc playback unit 103, a control unit 104, and the like in addition to the HDMI transmission unit 102.
- the control unit 104 controls each unit of the BD player 100.
- the television receiver 300 includes a display unit 303 including an image display element such as a liquid crystal display element or an organic EL display element, a control unit 304, and the like.
- the control unit 304 controls each unit of the television receiver 300.
- the AV amplifier 200 includes a control unit 203 and the like in addition to the HDMI receiving unit 202a and the HDMI transmitting unit 202b.
- the control unit 203 controls each unit of the AV amplifier 200.
- the BD player 100 transmits the video signal and the audio signal reproduced by the disc reproducing unit 103 to the AV amplifier 200 by using the HDMI TMDS (Transition Minimized Differential Signaling) channel.
- the AV amplifier 200 transmits the video signal received by the HDMI receiving unit 202a to the television receiver 300 by using the HDMI TMDS channel by the HDMI transmitting unit 202b. Further, the AV amplifier 200 supplies the audio signal received by the HDMI receiving unit 202a to the external 5.1 channel speaker group 500.
- the television receiver 300 supplies the video signal received by the HDMI receiving unit 302 to the display unit 303.
- the television receiver 300 has an EDID ROM (Read Only Memory) in the HDMI receiving unit 302.
- the EDID ROM stores E-EDID (Enhanced Extended Extended Display Identification Data) that is information related to the performance (configuration / capability) of the television receiver 300.
- E-EDID Enhanced Extended Extended Display Identification Data
- the television receiver 300 transmits this E-EDID to the AV amplifier 200 through the HDMI receiving unit 302.
- This E-EDID includes HDMI VSDB and vendor VSDB.
- the television receiver 300 declares it on the HDMI VSDB in order to notify the upstream of its corresponding status regarding functions defined in the conventional HDMI. Also, the television receiver 300 declares on the vendor VSDB in order to notify upstream whether or not there is a correspondence regarding the vendor-specific extended function.
- a layer field representing a connection hierarchy is arranged in the vendor VSDB.
- the function expansion includes a change of PHY (physical layer) specification, a response to a new application, and the like.
- Changes in the PHY specification include an increase in transmission rate, an increase in the number of transmission lanes, a change in coding method, a change in signal amplitude, a change in clock transmission method, support for bidirectional transmission, a data transmission mode other than video, and the like.
- new applications are supported by new 3D format or new 3D video transmission method, new video format correspondence or transmission method, new audio transmission method, high-efficiency video transmission method, and new inter-device control method. It is correspondence of.
- FIG. 4 schematically shows a data structure example of a vendor VSDB (Vendor VSDB).
- the vendor VSDB is composed of N + 1 bytes from the 0th byte to the Nth byte.
- information represented by “24 bits IEEE Registration Identifier” is arranged in the first to third bytes.
- a 2-bit layer field is arranged in the seventh and sixth bits of the fourth byte.
- the AV amplifier 200 receives the E-EDID transmitted from the television receiver 300 by the HDMI transmitting unit 202b.
- the AV amplifier 200 has an EDID ROM (Read Only Memory) in the HDMI receiving unit 202a.
- This EDID ROM stores E-EDID (Enhanced Extended Extended Display Identification Data) which is information related to the performance (Configuration / capability) of the AV amplifier 200.
- the AV amplifier 200 adds / changes the E-EDID of the television receiver 300 received by the HDMI transmission unit 202b according to its own capability and the corresponding situation, and the HDMI reception unit 202a , To the BD player 100.
- the HDMI VSDB and the vendor VSDB will be described.
- the AV amplifier 200 can understand the contents of the vendor VSDB received from the television receiver 300, it increments the value of the layer field arranged in the vendor VSDB. To do.
- the other values of both VSDBs are additionally written / changed according to their own capability and response status in addition to the capability and response of the television receiver 300 declared there.
- the AV amplifier 200 appends / changes only the HDMI VSDB according to its own capability and the corresponding situation. In this case, since the vendor VSDB is not changed, the value of the layer field remains “0”.
- the BD player 100 receives the E-EDID transmitted from the AV amplifier 200 by the HDMI transmitting unit 102. Based on the value of the layer field of the vendor VSDB, the control unit 104 determines whether all devices (repeater devices) on the path (repeator device), here, the AV amplifier 200 correspond to the extended function indicated by the vendor VSDB. Judging.
- the control unit 104 indicates all devices on the route (path) by the vendor VSDB. Judge that it corresponds to the extended function. The control unit 104 can recognize the number of devices existing on the path from the physical address (Physical Address) of itself (BD player 100).
- the control unit 104 determines the content of the signal output from the HDMI transmission unit 102 based on the determination result. That is, when the control unit 104 determines that all devices on the path correspond to the extended function indicated by the vendor VSDB, the control unit 104 considers both the HDMI VSDB and the vendor VSDB, and is declared in both VSDBs. The output signal is determined according to the ability / response situation.
- the HDMI transmission unit 102 transmits a signal together with the HDMI VSIF and the vendor VSIF as necessary.
- the electronic device that receives the signal can easily grasp that the transmitted signal matches the capability including the extended function based on the HDMI VSIF and the vendor VSIF.
- control unit 104 determines that all devices on the path do not support the extended function indicated by the vendor VSDB, only the HDMI VSDB is considered, and the capability / value indicated only by the HDMI VSDB is considered.
- the output signal is determined according to the response status.
- the HDMI transmission unit 102 outputs a signal together with the HDMI VSIF as necessary.
- the electronic device that receives the signal can easily grasp that the transmitted signal is not adapted to the capability including the extended function based on the HDMI VSIF.
- the operation of the transmission / reception system 10 shown in FIG. 1 will be briefly described.
- the E-EDID stored in the EDID ROM included in the HDMI receiving unit 302 of the television receiver 300 is transmitted from the HDMI receiving unit 302 to the HDMI transmitting unit 202b of the AV amplifier 200.
- the HDMI VSDB which declares its own support status regarding functions defined in the conventional HDMI, and the presence / absence of support for vendor-specific extended functions are declared, and a layer field representing the connection hierarchy is arranged. Vendor VSDB is included.
- the E-EDID of the television receiver 300 received by the HDMI transmission unit 202 b is added / changed according to its own capability and the corresponding situation, and from the HDMI reception unit 202 a.
- the data is transmitted to the HDMI transmission unit 102 of the BD player 100.
- the HDMI VSDB and the vendor VSDB are added / changed as follows. That is, when the contents of the vendor VSDB received from the television receiver 300 can be understood, the value of the layer field arranged in the vendor VSDB is incremented. In this case, the other values of both VSDBs are additionally written / changed according to their own ability and correspondence status in addition to the ability and correspondence of the television receiver 300 declared there.
- all devices on the path correspond to the extended function indicated by the vendor VSDB based on the value of the layer field of the vendor VSDB included in the E-EDID transmitted from the AV amplifier 200. It is determined whether or not. Then, in the BD player 100, the content of the signal transmitted from the HDMI transmission unit 102 is determined based on the determination result.
- both the HDMI VSDB and the vendor VSDB are considered, and the content of the transmission signal (output) is determined according to the capability / response status declared in both VSDBs.
- the content of the transmission signal (output) is determined according to the capability / correspondence status indicated only by this HDMI VSDB.
- a signal including a video signal and an audio signal reproduced by the disc reproducing unit 103 is transmitted from the HDMI transmitting unit 102.
- the content of the signal transmitted in this way is determined based on the value of the layer field of the vendor VSDB.
- the HDMI VSIF and the vendor VSIF are added to the blanking period of the video signal as necessary. Is done.
- the transmission signal is determined in accordance with the capability / correspondence status shown only in the HDMI VSDB, the HDMI VSIF is added to the blanking period of the video signal as necessary.
- the video signal transmitted from the BD player 100 is supplied to the television receiver 300 via the HDMI cable 401, the AV amplifier 200, and the HDMI cable 402, and an image is displayed on the display unit 303 of the television receiver 300.
- the audio signal transmitted from the BD player 100 is supplied to the AV amplifier 200 via the HDMI cable 401, processed by the AV amplifier 200, and then sent to, for example, an external 5.1 channel speaker group 500. The sound is output from the speaker group 500.
- the flowchart of FIG. 5 shows an example of a processing procedure for the vendor VSDB of the control unit 203 of the AV amplifier 200.
- the control unit 203 starts processing, and then proceeds to processing in step ST2.
- the control unit 203 determines whether or not the contents of the vendor VSDB can be understood. When determining that it is impossible to understand, the control unit 203 immediately proceeds to step ST6 and ends the process. In this case, the append / change process for the vendor VSDB is not performed.
- step ST3 the control unit 203 determines whether or not there is a layer field in the vendor VSDB. When determining that there is no layer field, the control unit 203 proceeds to the process of step ST5. In step ST5, the control unit 203 performs an appending / changing process on the vendor VSDB in accordance with its own ability and response status. Thereafter, the control unit 203 proceeds to step ST6 and ends the process.
- step ST3 If it is determined in step ST3 that there is a layer field, the control unit 203 proceeds to the process in step ST4.
- step ST4 the control unit 203 increments the value of the layer field of the vendor VSDB.
- step ST5 the control unit 203 performs an appending / changing process on the vendor VSDB in accordance with its own ability and response status. Thereafter, the control unit 203 proceeds to step ST6 and ends the process.
- step ST11 the control unit 104 starts processing, and then proceeds to processing in step ST12.
- step ST12 the control unit 104 determines whether or not the contents of the vendor VSDB can be understood. When determining that it cannot be understood, the control unit 104 proceeds to the process of step ST19.
- step ST19 the control unit 104 determines the content of the transmission signal (output) without considering the vendor VSDB. Then, the control part 104 progresses to step ST20, and complete
- step ST12 determines whether the vendor VSDB has a layer field. If determining that there is no layer field, the control unit 104 proceeds to the process of step ST17. In step ST17, the control unit 104 determines the content of the transmission signal (output) in consideration of the vendor VSDB. Then, the control part 104 progresses to step ST18, and complete
- step ST13 If it is determined in step ST13 that there is a layer field, the control unit 104 checks the content (value) of the layer field in step ST14. Next, in step ST15, the control unit 104 checks the number of repeater devices from its own physical address (PA: PhysicalPhysAddress). Thereafter, the control unit 104 proceeds to the process of step ST16.
- PA PhysicalPhysAddress
- step ST16 the control unit 104 determines whether or not the value of the layer field matches the number of repeater devices. When determining that they match, the control unit 104 proceeds to the process of step ST17. In step ST17, the control unit 104 determines the content of the transmission signal (output) in consideration of the vendor VSDB. Then, the control part 104 progresses to step ST18, and complete
- step ST16 When determining that they do not match in step ST16, the control unit 104 proceeds to the process in step ST19.
- step ST19 the control unit 104 determines the content of the transmission signal (output) without considering the vendor VSDB. Then, the control part 104 progresses to step ST20, and complete
- FIG. 7 is a schematic diagram illustrating the operation of the transmission / reception system 10 to which the present technology is applied.
- “PA” attached to each device indicates a physical address.
- the BD player 100, the AV amplifier 200, and the television receiver 300 all support an extended function.
- the television receiver 300 which is a sink device, declares on the HDMI VSDB in order to notify the upstream of its corresponding status regarding functions defined in conventional HDMI. Similarly, the television receiver 300 declares on the vendor VSDB whether or not there is a correspondence regarding the extension function unique to the vendor (Vendor).
- a layer field representing a connection hierarchy is arranged in the vendor VSDB. As described above, this layer field is provided so that when the repeater device that has received the vendor VSDB can understand the contents, the value is incremented and notified upstream.
- the AV amplifier 200 as a repeater device receives the HDMI VSDB and the vendor VSDB from the television receiver 300. Since the AV amplifier 200 supports the extended function, the contents of the vendor VSDB can be understood. Therefore, the AV amplifier 200 adds / changes the received HDMI VSDB and vendor VSDB in addition to the capability / response status declared by the television receiver 300 and transmits to the source device. /Notice. At this time, the AV amplifier 200 increments the value (L) of the layer field in the vendor VSDB.
- the BD player 100 as the source device receives the HDMI VSDB and the vendor VSDB from the AV amplifier 200.
- the BD player 100 confirms that the value (L) of the layer field of the vendor VSDB is “1”. Further, the BD player 100 has one repeater device on its own connection path (path) from its own physical address (PA), in this example “1.1.0.0”.
- the BD player 100 Since the value (L) of the layer field is “1”, the BD player 100 recognizes that all the repeater devices on the path correspond to the extended function indicated by the vendor VSDB. Therefore, the BD player 100 determines the content of the transmission signal in accordance with the capability including the new function declared in both VSDBs, and outputs the signal together with the HDMI VSIF and the vendor VSIF if necessary.
- FIG. 8 is a schematic diagram showing that the problem described in FIG. 10 is solved in the transmission / reception system 10 to which the present technology is applied.
- “PA” attached to each device indicates a physical address.
- the BD player 100 and the television receiver 300 support the extended function, but the AV amplifier 200 does not support the extended function.
- the television receiver 300 which is a sink device, declares on the HDMI VSDB in order to notify the upstream of its corresponding status regarding functions defined in conventional HDMI. Similarly, the television receiver 300 declares on the vendor VSDB whether or not there is a correspondence regarding the extension function unique to the vendor (Vendor).
- a layer field representing a connection hierarchy is arranged in the vendor VSDB. As described above, this layer field is provided so that when the repeater device that has received the vendor VSDB can understand the contents, the value is incremented and notified upstream.
- the AV amplifier 200 as a repeater device receives the HDMI VSDB and the vendor VSDB from the television receiver 300. Since the AV amplifier 200 does not support the extended function, the contents of the vendor VSDB cannot be understood. Therefore, only the HDMI VSDB adds / changes the content according to its own capability and correspondence, and transmits / notifies it to the source device. In this case, since the contents of the vendor VSDB are not changed, the value (L) of the layer field remains “0”.
- the BD player 100 as the source device receives the HDMI VSDB and the vendor VSDB from the AV amplifier 200.
- the BD player 100 confirms that the value (L) of the layer field of the vendor VSDB is “0”.
- the BD player 100 has one repeater device on its connection path (path) from its own physical address (PA), in this case “1.1.0.0”.
- the BD player 100 Since the value (L) of the layer field is “0”, the BD player 100 knows that all repeater devices on the path do not support the extended function indicated by the vendor VSDB. On the path, it is recognized that the new function indicated by the vendor VSDB cannot be supported. Therefore, the BD player 100 determines the content of the transmission signal according to the capability / correspondence status indicated by the conventional HDMI VSDB, and outputs the signal together with the HDMI VSIF as necessary.
- the BD player 100 is configured such that the repeater device (AV amplifier 200) existing between the BD player 100 and the television receiver 300 is the vendor based on the value of the layer field of the vendor VSDB. You can know whether or not it corresponds to the original extended function.
- the repeater device AV amplifier 200
- the BD player 100 can output signals corresponding to all repeater devices on the path, and can avoid damaging non-compatible devices in function expansion.
- the function expansion using the vendor VSDB it is possible to safely realize a larger function addition that damages non-compliant devices such as a change in PHY specifications.
- a layer field representing a connection hierarchy is provided in the vendor VSDB, and when the repeater device can understand the contents of the vendor VSDB, a configuration example is shown in which the value of the layer field is incremented. However, if the repeater device can understand the contents of the vendor VSDB, a configuration example in which the layer bit of the layer field is set can be considered.
- the present technology in addition to the method of incrementing the value of the layer field when the repeater device understands the VSDB, adds a field indicating its own layer to the field corresponding to the physical address layer allocated by HDMI. It can also be realized by setting. This will be specifically described below with reference to the drawings.
- the AV amplifier 200 and the BD player 100 are assigned physical addresses by reading the HDMI VSDB from the television receiver 300 and the AV amplifier 200, respectively.
- the HDMI VSDB has 4-bit A, B, C, and D fields in bytes 4 and 5, respectively.
- the sink device (in this case, the television receiver 300) which is the root device (physical address is 0.0.0.0) is connected to the device (in this case, the AV amplifier 200) connected to its HDMI terminal.
- a physical address (1.0.0.0) is assigned to the AV amplifier 200 by setting a terminal number (1 in this case) in the A field.
- the AV amplifier 200 sets a terminal number (1 in this case) in the B field for the device (in this case, the BD player 100) connected to its HDMI terminal, thereby allowing the BD player 100 to
- a physical address (1.1.0.0) is assigned.
- HDMI five devices can be connected on the maximum path, and a physical address is assigned to each device as described above.
- a device connected to the upstream side of the root device has an A field, and a device connected further upstream has a B field.
- the connected repeater device is a layer assigned by the downstream device to which the repeater device itself is directly connected in the layer field of the vendor VSDB (the AV amplifier 200 in this case is directly connected to A and downstream thereof. 1 is set to the bit (layer bit) of which the address is assigned from the television receiver 300 being installed.
- the source device (in this case, the BD player 100) indicates that a repeater device exists between the sink device (in this case, the television receiver 300) from its own physical address (in this case, 1.1.0.0). Since the value is set in the A field among the layer fields, it is possible to know that the repeater device understands the vendor VSDB.
- the source device can know that the repeater device existing on the path understands the vendor VSDB and corrects it according to its own ability.
- the source device is the BD player 100
- the sink device is the television receiver 300
- the repeater device is the AV amplifier 200
- each device is not limited to the device in this embodiment. Further, the number of devices constituting the transmission / reception system is not limited to three.
- a repeater device such as an HDMI switcher is added in between, and a configuration of up to five units defined by the HDMI standard is conceivable.
- a maximum of three repeater devices can exist between the source device and the sink device, and when the present technology is applied, it is sufficient that the layer field has at least 2 bits.
- the present technology is applied to a transmission / reception system in which each device is connected by a digital interface of the HDMI standard.
- the present technology is not limited to this, and it is needless to say that the present technology can be similarly applied to a transmission / reception system connected by other similar digital interfaces (wired or wireless).
- this technique can also take the following structures.
- a signal receiving unit that receives a signal from an external device via a transmission path;
- a storage unit for storing a data block including capability information indicating presence / absence of support for an extended function;
- An information transmission unit that transmits the stored data block to the external device via the transmission path;
- the signal receiving unit receives the signal from the external device through the transmission path using a differential signal.
- the transmission path is an HDMI cable
- the data block is a vendor VSDB.
- the electronic apparatus further including an image display unit that displays an image on an image display element based on a video signal included in the signal received by the reception unit.
- a signal transmission unit that transmits a signal to an external device via a transmission path;
- An information receiving unit that receives a data block including capability information that indicates whether or not to support an extended function, sent from the external device via the transmission path,
- the data block has a layer field that represents the connection hierarchy,
- An electronic device further comprising: a control unit that determines whether all devices on the route support the extended function based on the value of the layer field, and determines the content of the transmitted signal.
- the control unit determines whether all devices on the route are compatible with the extended function based on whether the value of the layer field corresponds to the number of devices on the route.
- the electronic device (8) The electronic device according to (7), wherein the control unit recognizes the number of devices on the path based on a physical address of the device itself. (9) The electronic device according to any one of (6) to (8), further including an information transmission unit that transmits content information indicating the content of the determined signal to the external device via the transmission path. (10) The electronic device according to (9), wherein the information transmission unit inserts and transmits the content information in a blanking period of a video signal constituting the signal. (11) The electronic device according to any one of (6) to (10), wherein the signal transmission unit transmits the signal to the external device through the transmission path using a differential signal. (12) The electronic device according to (11), wherein the transmission path is an HDMI cable, and the data block is a vendor VSDB.
- a method for determining the content of a transmission signal in an electronic device that transmits a signal to an external device via a transmission path A data block including capability information indicating presence / absence of support for an extended function from the external device via the transmission path and having a layer field indicating a connection hierarchy is received, and on the path based on the value of the layer field
- a signal receiving unit that receives a signal from the first external device via a transmission path; A signal transmission unit for transmitting the received signal to a second external device via a transmission path; An information receiving unit for receiving a data block sent from the second external device via the transmission path and including capability information indicating presence / absence of support for an extended function and in which a layer field representing a connection layer is arranged
- An information processing unit that processes the received data block according to whether or not the contents of the received data block can be understood
- An information transmission unit that transmits a data block output from the information processing unit to the first external device via the transmission path; The information processing unit If the contents of the data block can be understood, the received data block is output after at least processing for changing the value of the layer field, An electronic device that outputs the received data block as it is when the contents of the data block cannot be understood.
- the electronic device wherein the process of changing the value of the layer field is a process of incrementing the value of the layer field.
- the process of changing the value of the layer field is a process of setting a layer bit of the layer field.
- the signal receiving unit receives the signal from the first external device via the transmission line as a differential signal, The electronic device according to any one of (14) to (16), wherein the signal transmission unit transmits the signal to the second external device via the transmission path using a differential signal.
- the transmission path is an HDMI cable
- the data block is a vendor VSDB.
- a data block transmission method including capability information indicating presence / absence of support for an extended function received via a path, in which a layer field representing a connection hierarchy is arranged, A first step of processing the received data block and outputting a transmission data block according to whether the content of the received data block can be understood; A second step of transmitting the transmission data block to the first external device via the transmission path, In the first step, If the contents of the data block can be understood, the received data block is output after at least processing for changing the value of the layer field, A data block transmission method for outputting the received data block as it is when the contents of the data block cannot be understood.
- the first electronic device includes: A signal transmission unit for transmitting a signal to an external device via a transmission path; An information receiving unit for receiving a data block in which a layer field representing a connection layer is arranged, including capability information indicating presence / absence of support for an extended function, sent from the external device via the transmission path; A controller that determines whether all devices on the path support the extended function based on the value of the layer field, and determines the content of the transmitted signal; and
- the second electronic device is A signal receiving unit for receiving a signal from an external device via a transmission path; A storage unit for storing a data block in which a layer field representing a connection hierarchy is stored, including capability information indicating presence / absence of support for an extended function; An information transmission unit that transmits the stored data block to the external device via the transmission path;
- the third electronic device is A signal receiving unit for receiving
- DESCRIPTION OF SYMBOLS 10 ... Transmission / reception system 100 ... BD player 101 ... HDMI terminal 102 ... HDMI transmission part 103 ... Disc reproduction
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Abstract
Description
外部機器から伝送路を介して信号を受信する信号受信部と、
拡張機能への対応の有無を示す能力情報を含むデータブロックが記憶される記憶部と、
上記記憶されているデータブロックを上記伝送路を介して上記外部機器に送信する情報送信部とを備え、
上記データブロックには、接続階層を表すレイヤーフィールドが配置されている
電子機器にある。
外部機器に伝送路を介して信号を送信する信号送信部と、
上記外部機器から上記伝送路を介して送られてくる、拡張機能への対応の有無を示す能力情報を含むデータブロックを受信する情報受信部とを備え、
上記データブロックには接続階層を表すレイヤーフィールドが配置されており、
上記レイヤーフィールドの値に基づいて経路上の全ての機器が上記拡張機能に対応しているか否かを判断して、上記送信される信号の内容を決定する制御部をさらに備える
電子機器にある。
第1の外部機器から伝送路を介して信号を受信する信号受信部と、
上記受信された信号を伝送路を介して第2の外部機器に送信する信号送信部と、
上記第2の外部機器から上記伝送路を介して送られてくる、拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されたデータブロックを受信する情報受信部と、
上記受信されたデータブロックの内容を理解できたか否かに応じて上記受信されたデータブロックを処理する情報処理部と、
上記情報処理部から出力されるデータブロックを上記伝送路を介して上記第1の外部機器に送信する情報送信部とを備え、
上記情報処理部は、
上記データブロックの内容を理解できた場合には、上記受信されたデータブロックを少なくとも上記レイヤーフィールドの値を変更する処理を施した後に出力し、
上記データブロックの内容を理解できない場合には、上記受信されたデータブロックをそのまま出力する
電子機器にある。
1.実施の形態
2.変形例
[送受信システムの構成例]
図1は、実施の形態としての送受信システム10の構成例を示している。この送受信システム10は、ソース機器としてのBD(ブルーレイディスク)プレーヤ100と、リピータ機器としてのAVアンプ200と、シンク機器としてのテレビ受信機300を有している。
なお、上述実施の形態については、ベンダーVSDBに接続階層を表すレイヤーフィールドを設け、リピータ機器は、ベンダーVSDBの内容を理解できた場合、そのレイヤーフィールドの値をインクリメントする構成例を示した。しかし、リピータ機器は、ベンダーVSDBの内容を理解できた場合、そのレイヤーフィールドの自身のレイヤービットをセットする構成例も考えられる。
(1)外部機器から伝送路を介して信号を受信する信号受信部と、
拡張機能への対応の有無を示す能力情報を含むデータブロックが記憶される記憶部と、
上記記憶されているデータブロックを上記伝送路を介して上記外部機器に送信する情報送信部とを備え、
上記データブロックには、接続階層を表すレイヤーフィールドが配置されている
電子機器。
(2)上記信号受信部は、上記外部機器から、差動信号により、上記伝送路を介して上記信号を受信する
前記(1)に記載の電子機器。
(3)上記伝送路はHDMIケーブルであり、上記データブロックはベンダーVSDBである
前記(2)に記載の電子機器。
(4)上記受信部で受信された信号に含まれる映像信号に基づいて画像表示素子に画像を表示する画像表示部をさらに備える
前記(1)から(3)のいずれかに記載の電子機器。
(5)外部機器から伝送路を介して信号を受信する電子機器における拡張機能への対応の有無を示す能力情報を含むデータブロックの送信方法であって、
上記データブロックに接続階層を表すレイヤーフィールドを配置して送信する
データブロックの送信方法。
(6)外部機器に伝送路を介して信号を送信する信号送信部と、
上記外部機器から上記伝送路を介して送られてくる、拡張機能への対応の有無を示す能力情報を含むデータブロックを受信する情報受信部とを備え、
上記データブロックには接続階層を表すレイヤーフィールドが配置されており、
上記レイヤーフィールドの値に基づいて経路上の全ての機器が上記拡張機能に対応しているか否かを判断して、上記送信される信号の内容を決定する制御部をさらに備える
電子機器。
(7)上記制御部は、レイヤーフィールドの値と上記経路上の機器の個数とが対応するか否かにより、上記経路上の全ての機器が上記拡張機能に対応しているか否かを判断する
前記(6)に記載の電子機器。
(8)上記制御部は、自身の機器の物理アドレスに基づいて、上記経路上の機器の個数を認識する
前記(7)に記載の電子機器。
(9)上記決定された信号の内容を示す内容情報を上記外部機器に上記伝送路を介して送信する情報送信部をさらに備える
前記(6)から(8)のいずれかに記載の電子機器。
(10)上記情報送信部は、上記内容情報を上記信号を構成する映像信号のブランキング期間に挿入して送信する
前記(9)に記載の電子機器。
(11)上記信号送信部は、上記外部機器に、差動信号により、上記伝送路を介して上記信号を送信する
前記(6)から(10)のいずれかに記載の電子機器。
(12)上記伝送路はHDMIケーブルであり、上記データブロックはベンダーVSDBである
前記(11)に記載の電子機器。
(13)外部機器に伝送路を介して信号を送信する電子機器における送信信号の内容決定方法であって、
上記外部機器から上記伝送路を介して拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されたデータブロックを受信し、該レイヤーフィールドの値に基づいて経路上の全ての機器が上記拡張機能に対応しているか否かを判断し、該判断結果に基づいて上記送信信号の内容を決定する
送信信号の内容決定方法。
(14)第1の外部機器から伝送路を介して信号を受信する信号受信部と、
上記受信された信号を伝送路を介して第2の外部機器に送信する信号送信部と、
上記第2の外部機器から上記伝送路を介して送られてくる、拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されたデータブロックを受信する情報受信部と、
上記受信されたデータブロックの内容を理解できたか否かに応じて上記受信されたデータブロックを処理する情報処理部と、
上記情報処理部から出力されるデータブロックを上記伝送路を介して上記第1の外部機器に送信する情報送信部とを備え、
上記情報処理部は、
上記データブロックの内容を理解できた場合には、上記受信されたデータブロックを少なくとも上記レイヤーフィールドの値を変更する処理を施した後に出力し、
上記データブロックの内容を理解できない場合には、上記受信されたデータブロックをそのまま出力する
電子機器。
(15)上記レイヤーフィールドの値を変更する処理は、該レイヤーフィールドの値をインクリメントする処理である
前記(14)に記載の電子機器。
(16)上記レイヤーフィールドの値を変更する処理は、該レイヤーフィールドの自身のレイヤービットをセットする処理である
前記(14)に記載の電子機器。
(17)上記信号受信部は、上記第1の外部機器から、差動信号により、上記伝送路を介して上記信号を受信し、
上記信号送信部は、上記第2の外部機器に、差動信号により、上記伝送路を介して上記信号を送信する
前記(14)から(16)のいずれかに記載の電子機器。
(18)上記伝送路はHDMIケーブルであり、上記データブロックはベンダーVSDBである
前記(17)に記載の電子機器。
(19)第1の外部機器から伝送路を介して信号を受信し、該受信された信号を伝送路を介して第2の外部機器に送信する電子機器における上記第2の外部機器から上記伝送路を介して受信される、拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されたデータブロックの送信方法であって、
上記受信されたデータブロックの内容を理解できたか否かに応じて上記受信されたデータブロックを処理して送信データブロックを出力する第1のステップと、
上記送信データブロックを上記伝送路を介して上記第1の外部機器に送信する第2のステップとを備え、
上記第1のステップでは、
上記データブロックの内容を理解できた場合には、上記受信されたデータブロックを少なくとも上記レイヤーフィールドの値を変更する処理を施した後に出力し、
上記データブロックの内容を理解できない場合には、上記受信されたデータブロックをそのまま出力する
データブロックの送信方法。
(20)第1の電子機器と、第2の電子機器と、上記第1の電子機器と上記第2の電子機器と間の経路上に配置される所定数の第3の電子機器とからなる送受信システムであって、
上記第1の電子機器は、
外部機器に伝送路を介して信号を送信する信号送信部と、
上記外部機器から上記伝送路を介して送られてくる、拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されているデータブロックを受信する情報受信部と、
上記レイヤーフィールドの値に基づいて経路上の全ての機器が上記拡張機能に対応しているか否かを判断して、上記送信される信号の内容を決定する制御部とを備え、
上記第2の電子機器は、
外部機器から伝送路を介して信号を受信する信号受信部と、
拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されているデータブロックが記憶される記憶部と、
上記記憶されているデータブロックを上記伝送路を介して上記外部機器に送信する情報送信部とを備え、
上記第3の電子機器は、
第1の外部機器から伝送路を介して信号を受信する信号受信部と、
上記受信された信号を伝送路を介して第2の外部機器に送信する信号送信部と、
上記第2の外部機器から上記伝送路を介して送られてくる、拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されたデータブロックを受信する情報受信部と、
上記受信されたデータブロックの内容を理解できたか否かに応じて上記受信されたデータブロックを処理する情報処理部と、
上記情報処理部から出力されるデータブロックを上記伝送路を介して上記第1の外部機器に送信する情報送信部とを備え、
上記情報処理部は、
上記データブロックの内容を理解できた場合には、上記受信されたデータブロックを、少なくとも上記レイヤーフィールドの値を変更する処理を施した後に出力し、
上記データブロックの内容を理解できない場合には、上記受信されたデータブロックをそのまま出力する
送受信システム。
100・・・BDプレーヤ
101・・・HDMI端子
102・・・HDMI送信部
103・・・ディスク再生部
104・・・制御部
200・・・AVアンプ
201a,201b・・・HDMI端子
202a・・・HDMI受信部
202b・・・HDMI送信部
203・・・制御部
300・・・テレビ受信機
301・・・HDMI端子
302・・・HDMI受信部
303・・・表示部
304・・・制御部
400,401,402・・・HDMIケーブル
500・・・5.1ch用スピーカ群
Claims (20)
- 外部機器から伝送路を介して信号を受信する信号受信部と、
拡張機能への対応の有無を示す能力情報を含むデータブロックが記憶される記憶部と、
上記記憶されているデータブロックを上記伝送路を介して上記外部機器に送信する情報送信部とを備え、
上記データブロックには、接続階層を表すレイヤーフィールドが配置されている
電子機器。 - 上記信号受信部は、上記外部機器から、差動信号により、上記伝送路を介して上記信号を受信する
請求項1に記載の電子機器。 - 上記伝送路はHDMIケーブルであり、上記データブロックはベンダーVSDBである
請求項2に記載の電子機器。 - 上記受信部で受信された信号に含まれる映像信号に基づいて画像表示素子に画像を表示する画像表示部をさらに備える
請求項1に記載の電子機器。 - 外部機器から伝送路を介して信号を受信する電子機器における拡張機能への対応の有無を示す能力情報を含むデータブロックの送信方法であって、
上記データブロックに接続階層を表すレイヤーフィールドを配置して送信する
データブロックの送信方法。 - 外部機器に伝送路を介して信号を送信する信号送信部と、
上記外部機器から上記伝送路を介して送られてくる、拡張機能への対応の有無を示す能力情報を含むデータブロックを受信する情報受信部とを備え、
上記データブロックには接続階層を表すレイヤーフィールドが配置されており、
上記レイヤーフィールドの値に基づいて経路上の全ての機器が上記拡張機能に対応しているか否かを判断して、上記送信される信号の内容を決定する制御部をさらに備える
電子機器。 - 上記制御部は、レイヤーフィールドの値と上記経路上の機器の個数とが対応するか否かにより、上記経路上の全ての機器が上記拡張機能に対応しているか否かを判断する
請求項6に記載の電子機器。 - 上記制御部は、自身の機器の物理アドレスに基づいて、上記経路上の機器の個数を認識する
請求項7に記載の電子機器。 - 上記決定された信号の内容を示す内容情報を上記外部機器に上記伝送路を介して送信する情報送信部をさらに備える
請求項6に記載の電子機器。 - 上記情報送信部は、上記内容情報を上記信号を構成する映像信号のブランキング期間に挿入して送信する
請求項9に記載の電子機器。 - 上記信号送信部は、上記外部機器に、差動信号により、上記伝送路を介して上記信号を送信する
請求項6に記載の電子機器。 - 上記伝送路はHDMIケーブルであり、上記データブロックはベンダーVSDBである
請求項11に記載の電子機器。 - 外部機器に伝送路を介して信号を送信する電子機器における送信信号の内容決定方法であって、
上記外部機器から上記伝送路を介して拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されたデータブロックを受信し、該レイヤーフィールドの値に基づいて経路上の全ての機器が上記拡張機能に対応しているか否かを判断し、該判断結果に基づいて上記送信信号の内容を決定する
送信信号の内容決定方法。 - 第1の外部機器から伝送路を介して信号を受信する信号受信部と、
上記受信された信号を伝送路を介して第2の外部機器に送信する信号送信部と、
上記第2の外部機器から上記伝送路を介して送られてくる、拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されたデータブロックを受信する情報受信部と、
上記受信されたデータブロックの内容を理解できたか否かに応じて上記受信されたデータブロックを処理する情報処理部と、
上記情報処理部から出力されるデータブロックを上記伝送路を介して上記第1の外部機器に送信する情報送信部とを備え、
上記情報処理部は、
上記データブロックの内容を理解できた場合には、上記受信されたデータブロックを少なくとも上記レイヤーフィールドの値を変更する処理を施した後に出力し、
上記データブロックの内容を理解できない場合には、上記受信されたデータブロックをそのまま出力する
電子機器。 - 上記レイヤーフィールドの値を変更する処理は、該レイヤーフィールドの値をインクリメントする処理である
請求項14に記載の電子機器。 - 上記レイヤーフィールドの値を変更する処理は、該レイヤーフィールドの自身のレイヤービットをセットする処理である
請求項14に記載の電子機器。 - 上記信号受信部は、上記第1の外部機器から、差動信号により、上記伝送路を介して上記信号を受信し、
上記信号送信部は、上記第2の外部機器に、差動信号により、上記伝送路を介して上記信号を送信する
請求項14に記載の電子機器。 - 上記伝送路はHDMIケーブルであり、上記データブロックはベンダーVSDBである
請求項17に記載の電子機器。 - 第1の外部機器から伝送路を介して信号を受信し、該受信された信号を伝送路を介して第2の外部機器に送信する電子機器における上記第2の外部機器から上記伝送路を介して受信される、拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されたデータブロックの送信方法であって、
上記受信されたデータブロックの内容を理解できたか否かに応じて上記受信されたデータブロックを処理して送信データブロックを出力する第1のステップと、
上記送信データブロックを上記伝送路を介して上記第1の外部機器に送信する第2のステップとを備え、
上記第1のステップでは、
上記データブロックの内容を理解できた場合には、上記受信されたデータブロックを少なくとも上記レイヤーフィールドの値を変更する処理を施した後に出力し、
上記データブロックの内容を理解できない場合には、上記受信されたデータブロックをそのまま出力する
データブロックの送信方法。 - 第1の電子機器と、第2の電子機器と、上記第1の電子機器と上記第2の電子機器と間の経路上に配置される所定数の第3の電子機器とからなる送受信システムであって、
上記第1の電子機器は、
外部機器に伝送路を介して信号を送信する信号送信部と、
上記外部機器から上記伝送路を介して送られてくる、拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されているデータブロックを受信する情報受信部と、
上記レイヤーフィールドの値に基づいて経路上の全ての機器が上記拡張機能に対応しているか否かを判断して、上記送信される信号の内容を決定する制御部とを備え、
上記第2の電子機器は、
外部機器から伝送路を介して信号を受信する信号受信部と、
拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されているデータブロックが記憶される記憶部と、
上記記憶されているデータブロックを上記伝送路を介して上記外部機器に送信する情報送信部とを備え、
上記第3の電子機器は、
第1の外部機器から伝送路を介して信号を受信する信号受信部と、
上記受信された信号を伝送路を介して第2の外部機器に送信する信号送信部と、
上記第2の外部機器から上記伝送路を介して送られてくる、拡張機能への対応の有無を示す能力情報を含み、接続階層を表すレイヤーフィールドが配置されたデータブロックを受信する情報受信部と、
上記受信されたデータブロックの内容を理解できたか否かに応じて上記受信されたデータブロックを処理する情報処理部と、
上記情報処理部から出力されるデータブロックを上記伝送路を介して上記第1の外部機器に送信する情報送信部とを備え、
上記情報処理部は、
上記データブロックの内容を理解できた場合には、上記受信されたデータブロックを少なくとも上記レイヤーフィールドの値を変更する処理を施した後に出力し、
上記データブロックの内容を理解できない場合には、上記受信されたデータブロックをそのまま出力する
送受信システム。
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- 2014-01-07 WO PCT/JP2014/050093 patent/WO2014109322A1/ja active Application Filing
- 2014-01-07 EP EP14737928.3A patent/EP2945392B1/en active Active
- 2014-01-07 CN CN201480003923.0A patent/CN104937947B/zh active Active
- 2014-01-07 KR KR1020157017491A patent/KR102156456B1/ko active IP Right Grant
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2020
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EP3016097A1 (en) * | 2014-10-30 | 2016-05-04 | Fujitsu Component Limited | Communication device |
JP2016091090A (ja) * | 2014-10-30 | 2016-05-23 | 富士通コンポーネント株式会社 | 通信装置 |
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US10210909B2 (en) | 2015-01-20 | 2019-02-19 | Panasonic Intellectual Property Corporation Of America | Computer implemented method for use in a play back apparatus |
JP6235668B1 (ja) * | 2016-09-13 | 2017-11-22 | シャープ株式会社 | 表示装置、表示装置の制御方法およびプログラム |
WO2018051624A1 (ja) * | 2016-09-13 | 2018-03-22 | シャープ株式会社 | 表示装置、表示装置の制御方法およびプログラム |
JP2018046565A (ja) * | 2017-10-26 | 2018-03-22 | シャープ株式会社 | 表示装置、表示装置の制御方法、プログラム、およびテレビジョン受像機 |
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US20220093055A1 (en) | 2022-03-24 |
CN104937947B (zh) | 2019-09-13 |
US20230351980A1 (en) | 2023-11-02 |
US20200243038A1 (en) | 2020-07-30 |
EP2945392B1 (en) | 2018-10-17 |
KR20150106406A (ko) | 2015-09-21 |
US11200865B2 (en) | 2021-12-14 |
US20150325201A1 (en) | 2015-11-12 |
TWI645718B (zh) | 2018-12-21 |
US10657922B2 (en) | 2020-05-19 |
JP6304040B2 (ja) | 2018-04-04 |
TW201440512A (zh) | 2014-10-16 |
CN104937947A (zh) | 2015-09-23 |
KR102156456B1 (ko) | 2020-09-15 |
JPWO2014109322A1 (ja) | 2017-01-19 |
EP2945392A4 (en) | 2016-06-08 |
US11735137B2 (en) | 2023-08-22 |
EP2945392A1 (en) | 2015-11-18 |
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