WO2011013312A1 - Source device, synchronization device, av system, and update method - Google Patents

Source device, synchronization device, av system, and update method Download PDF

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Publication number
WO2011013312A1
WO2011013312A1 PCT/JP2010/004557 JP2010004557W WO2011013312A1 WO 2011013312 A1 WO2011013312 A1 WO 2011013312A1 JP 2010004557 W JP2010004557 W JP 2010004557W WO 2011013312 A1 WO2011013312 A1 WO 2011013312A1
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WO
WIPO (PCT)
Prior art keywords
firmware
source device
sink device
unit
storage unit
Prior art date
Application number
PCT/JP2010/004557
Other languages
French (fr)
Japanese (ja)
Inventor
中平正浩
久保陽子
橋口公平
Original Assignee
パナソニック株式会社
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Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Publication of WO2011013312A1 publication Critical patent/WO2011013312A1/en

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Classifications

    • 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
    • H04N21/43—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
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • 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
    • H04N21/43—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 or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
    • H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • 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
    • H04N21/43—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
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • 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
    • H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
    • H04N21/4586—Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8166—Monomedia components thereof involving executable data, e.g. software
    • H04N21/818—OS software

Definitions

  • the present invention relates to an update system that uses a device connected by an HDMI (High Definition Multimedia Interface) transmission method, and more particularly to an update system that can update firmware of a device that does not have a tuner or a network.
  • HDMI High Definition Multimedia Interface
  • AV video and audio
  • the source device is, for example, a DVD (Digital Versatile Disk) player, a BD (Blu-ray Disc) player, a CD player, or the like.
  • the sink device is, for example, an LCD (Liquid Crystal Display), a PDP (Plasma Display Panel), a projector, or the like.
  • the repeater device is, for example, an AV amplifier or an AV receiver.
  • the source device and the sink device are controlled by firmware incorporated in each device.
  • the firmware is written in the memory in the device, and the device is controlled by the microcomputer in the device executing the firmware.
  • the firmware is stored in a non-rewritable memory such as a ROM.
  • the firmware is stored in a rewritable memory represented by flash memory.
  • the update system disclosed in Patent Document 1 includes a DVD recorder having a tuner that can obtain new firmware from broadcast waves as a source device, and an HDMI TV without a tuner as a sink device. Update the HDMI TV firmware with the new firmware. Transfer of new firmware from the DVD recorder to the HDMI television can be performed using, for example, an info frame packet defined by the HDMI standard.
  • the firmware of an HDMI TV without a tuner can be updated from a DVD recorder. Therefore, it is not necessary to bring the HDMI TV to a manufacturer or a store in order to update the firmware, and the convenience for the user is greatly increased.
  • the source device is a device such as a digital video camera that does not have a function of obtaining new firmware such as a tuner, there is an inconvenience that there is no way to update the firmware of the source device from the sink device.
  • the present invention has been made in view of such circumstances, and in an AV system configured by connecting a source device and a sink device with an HDMI cable, it is possible to update the firmware of the source device from the sink device.
  • the purpose is to provide.
  • a source device of the present invention is a source device that transmits video data to a sink device via an HDMI cable, and includes information for specifying new firmware for the source device.
  • a generation unit that creates a firmware information command including the transmission unit that transmits the firmware information command to the sink device, the new firmware specified by the firmware information command is provided in the sink device, and the content is the source device Receiving a firmware preparation completion command from the sink device indicating that it has been stored in an EDID (Extended Display Identification Data) memory that can be referred to from the sink device, and receiving the firmware preparation completion command That the includes a second reception unit for referring to the new firmware from the sink device, and a firmware update execution unit to update the firmware of the source equipment referenced the new firmware by the second reception unit.
  • EDID Extended Display Identification Data
  • the EDID storage unit of the sink device Firmware can be updated using new firmware prepared in
  • the sink device of the present invention is a sink device that receives video data from a source device via an HDMI cable, and specifies an EDID storage unit whose contents can be referred to from the source device and new firmware of the source device.
  • Receiving a firmware information command including information for performing from the source device a firmware acquisition unit acquiring new firmware for the source device according to the received firmware information command, and the acquired new A second transmission unit that stores firmware in the EDID storage unit; and a first transmission unit that transmits a firmware preparation completion command indicating that the new firmware has been stored in the EDID storage unit to the source device.
  • the sink device further includes a firmware write state determination unit that determines whether the source device is referring to the firmware stored in the EDID storage unit, and the second transmission unit includes the firmware write
  • the state determination unit determines that the source device is referring to the firmware in the EDID storage unit
  • the state determination unit waits for the source device to finish referring to the firmware in the EDID storage unit, and then the new device Firmware may be stored in the EDID storage unit.
  • the source device of the present invention is a source device that transmits video data to a sink device via an HDMI cable, and a firmware information command including information for specifying new firmware for the sink device is transmitted to the sink device.
  • a receiving unit that receives from the device; a firmware acquisition unit that acquires new firmware for the sink device according to the received firmware information command; and the acquired new firmware is provided in the sink device, and the content is
  • a second transmission unit that stores the EDID storage unit that can be updated from the source device, and a firmware preparation completion command that indicates that the new firmware to be stored in the EDID storage unit has been transmitted to the sink device. 1 transmission part.
  • a sink device for example, an AV amplifier or a video monitor device
  • an external communication unit for example, a tuner that acquires new firmware from a broadcast wave
  • new firmware can be supplied to the EDID storage unit, and the firmware of the sink device can be updated with the new firmware stored in the EDID storage unit.
  • Data can be written in the EDID storage section of the sink device even when the sink device is turned off. Therefore, by using the EDID storage unit, new firmware can be supplied to the sink device at any time regardless of whether the sink device is operating.
  • the source device further includes a firmware write state determination unit that determines whether the sink device is referring to the firmware stored in the EDID storage unit, and the second transmission unit includes the firmware write
  • the state determination unit determines that the sink device is referring to the firmware in the EDID storage unit
  • the state determination unit waits for the sink device to finish referring to the firmware in the EDID storage unit, and then the new device Firmware may be stored in the EDID storage unit.
  • the sink device of the present invention is a sink device that receives video data from a source device via an HDMI cable, and includes an EDID storage unit that can update contents from the source device, and a new firmware for the sink device.
  • a generation unit that creates a firmware information command including information for specifying; a transmission unit that transmits the firmware information command to the source device; and the new firmware that is sent from the source device in response to the firmware information command
  • a second reception unit that stores the received new firmware in the EDID storage unit, and a firmware preparation completion command that indicates that transmission of the new firmware to be stored in the EDID storage unit is completed,
  • the firmware is updated using the new firmware supplied from the source device via the HDMI cable and stored in the EDID storage unit. Can be updated.
  • the present invention can be realized not only as such a source device and a sink device, but also an AV system configured by connecting such a source device and a sink device with an HDMI cable, and such a source device and a sink device. It can also be realized as a firmware update method executed in the above.
  • the new firmware for the source device is prepared in the EDID storage unit of the sink device and is acquired by the source device via the HDMI cable, so the external communication unit for acquiring the new firmware Even a source device that does not have the firmware can update the firmware using new firmware prepared in the EDID storage unit of the sink device.
  • the source device writes new firmware for the sink device to the EDID storage unit of the sink device via the HDMI cable, so that an external communication unit for acquiring the new firmware is provided. Even if the sink device does not have the firmware, the firmware can be updated using the new firmware prepared in the EDID storage unit of the sink device.
  • FIG. 1 is a block diagram showing a schematic configuration of an AV system according to Embodiment 1 of the present invention.
  • FIG. 2 is a sequence chart showing an example of a firmware update operation executed in the AV system according to Embodiment 1 of the present invention.
  • FIG. 3 is a sequence chart showing an example of a firmware update operation executed in the AV system according to Embodiment 1 of the present invention.
  • FIG. 4 is a block diagram showing a schematic configuration of the AV system according to Embodiment 2 of the present invention.
  • FIG. 5 is a sequence chart showing an example of a firmware update operation executed in the AV system according to Embodiment 2 of the present invention.
  • FIG. 6 is a sequence chart showing an example of a firmware update operation executed in the AV system according to Embodiment 2 of the present invention.
  • FIG. 1 is a block diagram showing a schematic configuration of an AV system according to an embodiment of the present invention.
  • the AV system in FIG. 1 is an AV system that updates the firmware of the source device 101 (hereinafter abbreviated as FW as appropriate) using the new firmware for the source device 101 received by the sink device 201.
  • 101 and a sink device 201 are connected by an HDMI cable 100.
  • the source device 101 is an example of a video data processing device that transmits video data and audio data to the sink device 201 via the HDMI cable 100, and is, for example, a BD (Blu-ray Disc) player.
  • BD Blu-ray Disc
  • the sink device 201 is an example of a video data processing device that receives video data and audio data from the source device 101 via the HDMI cable 100, and is, for example, a digital television receiver.
  • the video data processing apparatus that receives video data and audio data is not limited to the sink device 201, and may be a repeater device.
  • the source device 101 and the sink device 201 may be a computer system (not shown) including, for example, a CPU (Central Processing Unit), a ROM, and a RAM.
  • a CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • each unit shown in FIG. 1 is realized as a software function by the CPU executing a program stored in the ROM in advance.
  • the HDMI cable 100 is defined by the HDMI standard, so that the source device 101 reads out the EDID from the sink device 201 in addition to the TMDS (Transition Minimized Differential Signaling) communication line for transmitting video data and audio data. It has a DDC (Display Data Channel) communication line to be used and a CEC (Consumer Electronics Control) communication line for the source device 101 and the sink device 201 to transmit and receive information.
  • TMDS Transition Minimized Differential Signaling
  • DDC Display Data Channel
  • CEC Consumer Electronics Control
  • the source device 101 includes a memory 102, a generation unit 103, a transmission unit 104, a first reception unit 105, a second reception unit 106, a determination unit 107, an FW update execution unit 109, and an HDMI transmission unit (Tx ) 113 and the FW storage unit 117.
  • the generation unit 103 includes an FW information generation unit 110, an FW reference information generation unit 111, and an FW reference completion information generation unit 112.
  • the determination unit 107 includes a FW update determination unit 108.
  • the HDMI transmission unit 113 includes a TMDS transmission unit 114 that transmits data using TMDS, a DDCI / F 115 that performs communication using DDC, and an HPD (Hot Plug Detect) unit 116 that performs hot plug detection.
  • TMDS transmission unit 114 that transmits data using TMDS
  • DDCI / F 115 that performs communication using DDC
  • HPD (Hot Plug Detect) unit 116 that performs hot plug detection.
  • the sink device 201 includes a memory 202, an EDID storage unit 203, a determination unit 204, a first transmission unit 205, a reception unit 206, a second transmission unit 207, an external communication unit 208, and an FW acquisition unit 209. , A generation unit 210 and an HDMI reception unit (Rx) 213. Although not particularly illustrated, the sink device 201 includes a display unit that displays video and an audio output unit that outputs audio.
  • the determination unit 204 includes an FW write state determination unit 211.
  • the external communication unit 208 has a tuner function, a network function, and the like, and is a communication unit that can acquire new firmware for the source device 101 through communication with the outside.
  • the generation unit 210 includes an FW preparation completion information generation unit 212.
  • the HDMI receiving unit 213 includes a TMDS receiving unit 214 that receives TMDS data, a DDCI / F 215 that performs communication using a DDC, and an HPD unit 216 that performs hot plug detection.
  • FIGS. 2 and 3 are sequence charts showing an example of firmware update operation executed in the AV system including the source device 101 and the sink device 201 configured as described above.
  • the HPD units 116 and 216 start detecting hot plugs, the TMDS transmission unit 114 starts outputting video data and audio data, and receives TMDS reception.
  • the unit 214 receives video data and audio data, and the DDCI / F 115 starts communication with the DDCI / F 215.
  • the FW information generation unit 110 of the source device 101 includes, as information for specifying new firmware for the source device 101, for example, an FW that includes the model number of the source device 101 and the version number of the current firmware. Generate information commands.
  • step S11 the transmission unit 104 of the source device 101 transmits the FW information command generated in step S11 to the sink device 201, and the reception unit 206 of the sink device 201 receives this command and stores it in the memory 202.
  • step S12 the FW write state determination unit 211 identifies new firmware for the source device 101 based on the acquired FW information command.
  • step S13 the FW acquisition unit 209 uses the external communication unit 208 for the source device 101. Get new firmware.
  • the external communication unit 208 connects to a product support site operated by the manufacturer of the source device 101 via the Internet, and inquires about the presence of new firmware by notifying the model number of the source device 101 and the version number of the current firmware. To do. In step 13, when there is new firmware, the new firmware may be acquired. If new firmware has been acquired, the process proceeds to step S14.
  • step S14 the FW write state determination unit 211 determines whether the source device 101 is referring to the firmware stored in the EDID storage unit 203. For example, after the FW reference command is received, the FW reference is completed. Judged by the fact that the command has not yet been received. This determination is performed to confirm whether the firmware in the EDID storage unit 203 may be rewritten.
  • step S15 If it is determined that the source device 101 is referring to the firmware stored in the EDID storage unit 203, the process waits for the reception of the FW reference completion command before proceeding to step S15. Otherwise, the process immediately proceeds to step S15. move on.
  • step S15 the second transmission unit 207 writes the new firmware for the source device 101 acquired using the external communication unit 208 to the EDID storage unit 203, and the FW preparation completion information generation unit 212 obtains the new firmware.
  • a FW preparation completion command is generated for notifying the source device 101 of the completion.
  • step S16 the first transmission unit 205 of the sink device 201 transmits the FW preparation completion command generated by the FW preparation completion information generation unit 212 to the source device 101.
  • the process proceeds to step S17 in FIG.
  • step S17 of FIG. 3 the FW referring information generation unit 111 of the source device 101 generates a FW reference command for notifying the sink device 201 that the firmware in the EDID storage unit 203 is being referenced,
  • the transmission unit 104 transmits the FW reference command to the sink device 201.
  • the FW referring command is received by the receiving unit 206 of the sink device 201.
  • step S ⁇ b> 18 the second reception unit 106 reads the firmware written in the EDID storage unit 203 of the sink device 201 via the DDC communication line using the DDCI / F 115 and 215, and reads the read firmware into the memory 102. Store.
  • the FW reference completion information generation unit 112 When the reading of the firmware is completed, the FW reference completion information generation unit 112 generates an FW reference completion command for notifying the sink device 201 that the firmware reference is completed.
  • step S19 the transmission unit 104 of the source device 101 transmits an FW reference completion command to the sink device 201.
  • the FW reference completion command is received by the receiving unit 206 of the sink device 201.
  • step S20 the FW update execution unit 109 updates the firmware in the FW storage unit 117 using the firmware stored in the memory 102 in step S18. Thereby, a series of update operations are completed.
  • the FW update of the source device 101 having no external communication unit is automatically performed. be able to.
  • FIG. 4 is a block diagram showing a schematic configuration of an AV system according to an embodiment of the present invention.
  • the AV system in FIG. 4 is an AV system that updates the firmware of the sink device 301 using the new firmware for the sink device 301 received by the source device 401, and connects the source device 401 and the sink device 301 to the HDMI cable. 300 is connected.
  • This AV system is the same as the conventional update system in that the firmware of the sink device is updated from the source device, but is characterized in that new firmware is transmitted using the EDID storage unit of the sink device.
  • the sink device 301 is an example of a video data processing device that receives video data and audio data from the source device 401 via the HDMI cable 300, and is, for example, a digital television receiver.
  • the source device 401 is an example of a video data processing device that transmits video data and audio data to the sink device 301 via the HDMI cable 300, and is a BD player, for example.
  • the source device 401 and the sink device 301 may be a computer system (not shown) including, for example, a CPU (Central Processing Unit), a ROM, a RAM, and the like.
  • a CPU Central Processing Unit
  • ROM Read Only Memory
  • RAM Random Access Memory
  • each unit shown in FIG. 4 is realized as a software function by the CPU executing a program stored in the ROM in advance.
  • the HDMI cable 300 is defined by the HDMI standard.
  • the DDC communication line used by the sink device 301 to receive EDID from the source device 401.
  • the sink device 301 and the source device 401 have a CEC communication line for transmitting and receiving information.
  • the sink device 301 includes a memory 302, a generation unit 303, a transmission unit 304, a first reception unit 305, a second reception unit 306, a determination unit 307, an EDID storage unit 308, and an FW update execution unit 310. , An HDMI receiving unit 314 and an FW storage unit 318. Although not particularly illustrated, the sink device 301 includes a display unit that displays video and an audio output unit that outputs audio.
  • the determination unit 307 includes a FW update determination unit 309.
  • the generation unit 303 includes an FW information generation unit 311, an FW reference information generation unit 312, and an FW reference completion information generation unit 313.
  • the HDMI receiving unit 314 includes a TMDS receiving unit 315 that receives data using TMDS, a DDCI / F 316 that performs communication using DDC, and an HPD unit 317 that performs hot plug detection.
  • the source device 401 includes a memory 402, a determination unit 403, a first transmission unit 404, a reception unit 405, a second transmission unit 406, an external communication unit 407, an FW acquisition unit 408, a generation unit 409, An HDMI transmission unit 412 is included.
  • the determination unit 403 includes an FW write state determination unit 410.
  • the generation unit 409 includes an FW preparation completion information generation unit 411.
  • the external communication unit 407 has a tuner function, a network function, and the like, and is a communication unit that can acquire new firmware for the sink device 301 by communication with the outside.
  • the HDMI transmission unit 412 includes a TMDS transmission unit 413 that transmits TMDS data, a DDCI / F 414 that performs communication using a DDC, and an HPD unit 415 that performs hot plug detection.
  • 5 and 6 are sequence charts showing an example of the firmware update operation executed in the AV system including the source device 401 and the sink device 301 configured as described above.
  • the HPD units 415 and 317 start detecting hot plugs, the TMDS transmission unit 413 starts outputting video data and audio data, and receives TMDS reception.
  • the unit 315 receives video data and audio data, and the DDCI / F 414 starts communication with the DDCI / F 316.
  • the FW information generation unit 311 of the sink device 301 includes FW including information for identifying new firmware for the sink device 301 (for example, the model number of the sink device 301 and the version number of the current firmware). Generate information commands.
  • step S32 the transmission unit 304 of the sink device 301 transmits the FW information command generated in step S31 to the source device 401, and the reception unit 405 of the source device 401 receives this command and stores it in the memory 402.
  • step S33 the FW write state determination unit 410 identifies new firmware for the sink device 301 from the acquired FW information command, and the FW acquisition unit 408 acquires the new firmware of the sink device 301 using the external communication unit 407. I do. If new firmware has been acquired, the process proceeds to step S34.
  • step S34 the power of the sink device 301 is turned off. It is not essential that the sink device 301 is turned off in step S34. Step S34 is provided to clearly indicate that new firmware can be transferred from the source device 401 to the EDID storage unit 308 of the sink device 301 while the power source of the sink device 301 is turned off. The sequence after step S35 can be executed in the same manner regardless of whether the sink device 301 is powered on or off.
  • step S35 the FW write state determination unit 410 determines whether the sink device 301 is referring to the firmware stored in the EDID storage unit 308. For example, after the FW reference command is received, the FW reference completion command is still Judged by the fact that it has not been received.
  • step S36 After waiting for the reception of the FW reference completion command. Otherwise, the process immediately proceeds to step S36. move on.
  • step S 36 the second transmission unit 406 transmits the new firmware for the sink device 301 acquired using the external communication unit 407 to the EDID storage unit 308 via the DDC communication line using the DDCI / F 414 and 316.
  • the writing and FW preparation completion information generation unit 411 generates an FW preparation completion command for notifying the sink device 301 that new firmware has been acquired.
  • step S37 the first transmission unit 404 of the source device 401 transmits the FW preparation completion command generated by the FW preparation completion information generation unit 411 to the sink device 301.
  • the first receiving unit 305 of the sink device 301 receives the FW preparation completion command.
  • step S41 of FIG. 6 when the power of the sink device 301 is turned off in step S34, the power of the sink device 301 is turned on.
  • step S42 the FW referring information generation unit 312 of the sink device 301 generates a FW reference command for notifying the source device 401 that the firmware in the EDID storage unit 308 is being referenced, and the transmission unit 304. Transmits a FW reference command to the source device 401.
  • the FW referencing command is received by the receiving unit 405 of the source device 401.
  • step S43 the FW update execution unit 310 copies the new firmware written in the EDID storage unit 308 in step S36 to the memory 302.
  • the transmission unit 304 of the sink device 301 transmits an FW reference completion command to the sink device 201 in step S44.
  • the FW reference completion command is received by the receiving unit 405 of the source device 401.
  • step S45 the FW update execution unit 310 updates the firmware in the FW storage unit 318 using the new firmware copied to the memory 302 in step S43.
  • the firmware update of the sink device 301 having no external communication unit is automatically performed. Can do.
  • the present invention can be used in an AV system configured by connecting a sink device and a source device with an HDMI cable, and is particularly useful for an AV digital home appliance or the like.

Abstract

A synchronization device (201) is provided with an EDID storage unit (203), a content of which can be referred to from a source device (101); a reception unit (206) which receives a FW information command for specifying a new firmware of the source device (101) from the source device (101); a FW acquisition unit (209) which acquires the new firmware in accordance with the received FW information command; a second transmission unit (207) which stores the acquired new firmware in the EDID storage unit (203); and a first transmission unit (205) which notifies the source device (101) that the new firmware has been stored in the EDID storage unit (203); wherein the source device (101) updates the firmware with reference to the EDID storage unit (203).

Description

ソース機器、シンク機器、ＡＶシステム、及びアップデート方法Source device, sink device, AV system, and update method
　本発明は、ＨＤＭＩ（Ｈｉｇｈ　Ｄｅｆｉｎｉｔｉｏｎ　Ｍｕｌｔｉｍｅｄｉａ　Ｉｎｔｅｒｆａｃｅ）伝送方式によって接続された機器を使用するアップデートシステムに係り、特に、チューナやネットワークを有しない機器のファームウェアをアップデート可能とするアップデートシステムに関する。 The present invention relates to an update system that uses a device connected by an HDMI (High Definition Multimedia Interface) transmission method, and more particularly to an update system that can update firmware of a device that does not have a tuner or a network.
　近年、ＨＤＭＩ伝送方式を用いて、映像データや音声データといったコンテンツデータを送信するソース機器と、コンテンツデータを受信するシンク機器やリピータ機器とで構成される映像音声（以下、適宜ＡＶと略記する）システムが普及している。 In recent years, video and audio (hereinafter abbreviated as AV as appropriate) composed of a source device that transmits content data such as video data and audio data and a sink device or a repeater device that receives content data using the HDMI transmission method The system is widespread.
　ソース機器は、たとえば、ＤＶＤ（Ｄｉｇｉｔａｌ　Ｖｅｒｓａｔｉｌｅ　Ｄｉｓｋ）プレイヤや、ＢＤ（Ｂｌｕ－ｒａｙ　Ｄｉｓｃ）プレイヤ、ＣＤプレイヤ等である。また、シンク機器は、たとえば、ＬＣＤ（Ｌｉｑｕｉｄ　Ｃｒｙｓｔａｌ　Ｄｉｓｐｌａｙ）、ＰＤＰ（Ｐｌａｓｍａ　Ｄｉｓｐｌａｙ　Ｐａｎｅｌ）、プロジェクタ等である。リピータ機器は、たとえば、ＡＶアンプや、ＡＶレシーバである。 The source device is, for example, a DVD (Digital Versatile Disk) player, a BD (Blu-ray Disc) player, a CD player, or the like. The sink device is, for example, an LCD (Liquid Crystal Display), a PDP (Plasma Display Panel), a projector, or the like. The repeater device is, for example, an AV amplifier or an AV receiver.
　ソース機器や、シンク機器（本明細書に記載のシンク機器は、説明の便宜上リピータ機器を含むものとする）は、それぞれの機器の内部に組み込まれたファームウェアにより制御される。ファームウェアは機器内のメモリに書き込まれ、当該機器内のマイコンが当該ファームウェアを実行することにより、当該機器を制御する。旧来のシンク機器では、ファームウェアはＲＯＭ等の書換えが不可能なメモリに格納されていたが、近年では、ファームウェアがアップグレードされることを想定して、フラッシュメモリに代表される書換え可能なメモリにファームウェアを格納するシンク機器が多数登場している。 The source device and the sink device (the sink device described in this specification includes a repeater device for the sake of explanation) are controlled by firmware incorporated in each device. The firmware is written in the memory in the device, and the device is controlled by the microcomputer in the device executing the firmware. In conventional sink devices, the firmware is stored in a non-rewritable memory such as a ROM. However, in recent years, assuming that the firmware is upgraded, the firmware is stored in a rewritable memory represented by flash memory. There are many sink devices that store
　そのようなシンク機器のファームウェアをソース機器からアップデートするアップデートシステムが知られている（例えば、特許文献１を参照）。 An update system that updates the firmware of such a sink device from a source device is known (see, for example, Patent Document 1).
　特許文献１に開示されるアップデートシステムは、新しいファームウェアを放送波から入手できるチューナを備えたＤＶＤレコーダをソース機器とし、チューナを持たないＨＤＭＩテレビをシンク機器として構成され、ＤＶＤレコーダが、放送波から入手した新しいファームウェアで、ＨＤＭＩテレビのファームウェアをアップデートする。ＤＶＤレコーダからＨＤＭＩテレビへの新しいファームウェアの転送は、例えば、ＨＤＭＩ規格で定められたインフォフレームパケットを用いて行うことができる。 The update system disclosed in Patent Document 1 includes a DVD recorder having a tuner that can obtain new firmware from broadcast waves as a source device, and an HDMI TV without a tuner as a sink device. Update the HDMI TV firmware with the new firmware. Transfer of new firmware from the DVD recorder to the HDMI television can be performed using, for example, an info frame packet defined by the HDMI standard.
　このようなアップデートシステムによれば、チューナを持たないＨＤＭＩテレビのファームウェアをＤＶＤレコーダからアップデートできる。そのため、ファームウェアをアップデートするためにＨＤＭＩテレビをメーカーや販売店に持参する必要がなくなり、ユーザの利便性が格段に高まる。 According to such an update system, the firmware of an HDMI TV without a tuner can be updated from a DVD recorder. Therefore, it is not necessary to bring the HDMI TV to a manufacturer or a store in order to update the firmware, and the convenience for the user is greatly increased.
特開２００８－２９４４９８号公報JP 2008-294498 A
　しかしながら、インフォフレームパケットを用いて新しいファームウェアを転送する限り、特許文献１に開示されるようなアップデートシステムを逆方向に用いて、シンク機器からソース機器のファームウェアをアップデートすることができない。なぜならば、インフォフレームパケットはソース機器からシンク機器へしか送信できないからである。 However, as long as new firmware is transferred using the info frame packet, the firmware of the source device cannot be updated from the sink device using the update system disclosed in Patent Document 1 in the reverse direction. This is because an info frame packet can only be transmitted from the source device to the sink device.
　そのため、ソース機器が、例えばチューナなどの新しいファームウェアを入手する機能を持たない、デジタルビデオカメラなどの機器である場合、ソース機器のファームウェアをシンク機器からアップデートするすべがないという不便がある。 Therefore, when the source device is a device such as a digital video camera that does not have a function of obtaining new firmware such as a tuner, there is an inconvenience that there is no way to update the firmware of the source device from the sink device.
　本発明は、このような事情に鑑みてなされたものであり、ソース機器とシンク機器とをＨＤＭＩケーブルで接続して構成されたＡＶシステムにおいて、シンク機器からソース機器のファームウェアをアップデート可能にする技術の提供を目的とする。 The present invention has been made in view of such circumstances, and in an AV system configured by connecting a source device and a sink device with an HDMI cable, it is possible to update the firmware of the source device from the sink device. The purpose is to provide.
　前記従来の課題を解決するために、本発明のソース機器は、シンク機器にＨＤＭＩケーブルを介して映像データを送信するソース機器であって、前記ソース機器用の新しいファームウェアを特定するための情報を含むファームウェア情報コマンドを作成する生成部と、前記ファームウェア情報コマンドを前記シンク機器へ送信する送信部と、前記ファームウェア情報コマンドで特定される前記新しいファームウェアが前記シンク機器に設けられかつ内容が前記ソース機器から参照可能なＥＤＩＤ（Ｅｘｔｅｎｄｅｄ　Ｄｉｓｐｌａｙ　Ｉｄｅｎｔｉｆｉｃａｔｉｏｎ　Ｄａｔａ）メモリに格納されたことを示すファームウェア準備完了コマンドを、前記シンク機器から受信する第１受信部と、前記ファームウェア準備完了コマンドが受信されると、前記シンク機器から前記新しいファームウェアを参照する第２受信部と、前記第２受信部によって参照された前記新しいファームウェアで前記ソース機器のファームウェアをアップデートするファームウェアアップデート実行部とを備える。 In order to solve the conventional problem, a source device of the present invention is a source device that transmits video data to a sink device via an HDMI cable, and includes information for specifying new firmware for the source device. A generation unit that creates a firmware information command including the transmission unit that transmits the firmware information command to the sink device, the new firmware specified by the firmware information command is provided in the sink device, and the content is the source device Receiving a firmware preparation completion command from the sink device indicating that it has been stored in an EDID (Extended Display Identification Data) memory that can be referred to from the sink device, and receiving the firmware preparation completion command That the includes a second reception unit for referring to the new firmware from the sink device, and a firmware update execution unit to update the firmware of the source equipment referenced the new firmware by the second reception unit.
　このような構成により、新しいファームウェアを取得するための外部通信部（例えば放送波から新しいファームウェアを取得するチューナ）を持たないソース機器（例えばデジタルビデオカメラ）であっても、シンク機器のＥＤＩＤ格納部に準備された新しいファームウェアを用いてファームウェアをアップデートできる。 With such a configuration, even if the source device (for example, a digital video camera) does not have an external communication unit (for example, a tuner for acquiring new firmware from a broadcast wave) for acquiring new firmware, the EDID storage unit of the sink device Firmware can be updated using new firmware prepared in
　また、本発明のシンク機器は、ソース機器からＨＤＭＩケーブルを介して映像データを受信するシンク機器であって、前記ソース機器から内容が参照可能なＥＤＩＤ格納部と、前記ソース機器の新しいファームウェアを特定するための情報を含むファームウェア情報コマンドを、前記ソース機器から受信する受信部と、受信された前記ファームウェア情報コマンドに従って、前記ソース機器用の新しいファームウェアを取得するファームウェア取得部と、取得された前記新しいファームウェアを前記ＥＤＩＤ格納部へ格納する第２送信部と、前記新しいファームウェアが前記ＥＤＩＤ格納部に格納されたことを示すファームウェア準備完了コマンドを前記ソース機器へ送信する第１送信部とを備える。 The sink device of the present invention is a sink device that receives video data from a source device via an HDMI cable, and specifies an EDID storage unit whose contents can be referred to from the source device and new firmware of the source device. Receiving a firmware information command including information for performing from the source device, a firmware acquisition unit acquiring new firmware for the source device according to the received firmware information command, and the acquired new A second transmission unit that stores firmware in the EDID storage unit; and a first transmission unit that transmits a firmware preparation completion command indicating that the new firmware has been stored in the EDID storage unit to the source device.
　このような構成により、新しいファームウェアを取得するための外部通信部を持たないソース機器に対して、シンク機器のＥＤＩＤ格納部に準備された新しいファームウェアでソース機器のファームウェアをアップデートさせることができる。 With such a configuration, it is possible to update the firmware of the source device with the new firmware prepared in the EDID storage unit of the sink device for the source device that does not have an external communication unit for acquiring new firmware.
　また、前記シンク機器は、さらに、前記ソース機器が前記ＥＤＩＤ格納部に格納されているファームウェアを参照中であるかを判定するファームウェア書き込み状態判定部を備え、前記第２送信部は、前記ファームウェア書き込み状態判定部によって、前記ソース機器が前記ＥＤＩＤ格納部にあるファームウェアを参照中であると判定された場合、前記ソース機器が前記ＥＤＩＤ格納部にあるファームウェアを参照し終わるのを待ってから、前記新しいファームウェアを前記ＥＤＩＤ格納部へ格納してもよい。 In addition, the sink device further includes a firmware write state determination unit that determines whether the source device is referring to the firmware stored in the EDID storage unit, and the second transmission unit includes the firmware write When the state determination unit determines that the source device is referring to the firmware in the EDID storage unit, the state determination unit waits for the source device to finish referring to the firmware in the EDID storage unit, and then the new device Firmware may be stored in the EDID storage unit.
　このような構成により、ソース機器が前記ＥＤＩＤ格納部にあるファームウェアを参照中に、前記ＥＤＩＤ格納部へ新しいファームウェアを書き込む不都合が回避できる。 With this configuration, it is possible to avoid the inconvenience of writing new firmware into the EDID storage unit while the source device is referring to the firmware in the EDID storage unit.
　また、本発明のソース機器は、シンク機器にＨＤＭＩケーブルを介して映像データを送信するソース機器であって、前記シンク機器用の新しいファームウェアを特定するための情報を含むファームウェア情報コマンドを、前記シンク機器から受信する受信部と、受信された前記ファームウェア情報コマンドに従って、前記シンク機器用の新しいファームウェアを取得するファームウェア取得部と、取得された前記新しいファームウェアを、前記シンク機器に設けられかつ内容が前記ソース機器から更新可能なＥＤＩＤ格納部に格納する第２送信部と、前記ＥＤＩＤ格納部に格納されるべき前記新しいファームウェアを送信し終わったことを示すファームウェア準備完了コマンドを前記シンク機器へ送信する第１送信部とを備える。 The source device of the present invention is a source device that transmits video data to a sink device via an HDMI cable, and a firmware information command including information for specifying new firmware for the sink device is transmitted to the sink device. A receiving unit that receives from the device; a firmware acquisition unit that acquires new firmware for the sink device according to the received firmware information command; and the acquired new firmware is provided in the sink device, and the content is A second transmission unit that stores the EDID storage unit that can be updated from the source device, and a firmware preparation completion command that indicates that the new firmware to be stored in the EDID storage unit has been transmitted to the sink device. 1 transmission part.
　このような構成により、新しいファームウェアを取得するための外部通信部（例えば放送波から新しいファームウェアを取得するチューナ）を持たないシンク機器（例えばＡＶアンプ、映像モニタ装置）に対して、ＨＤＭＩケーブルを介して新しいファームウェアをＥＤＩＤ格納部へ供給し、ＥＤＩＤ格納部に格納された新しいファームウェアでシンク機器のファームウェアをアップデートさせることができる。 With such a configuration, a sink device (for example, an AV amplifier or a video monitor device) that does not have an external communication unit (for example, a tuner that acquires new firmware from a broadcast wave) for acquiring new firmware is connected via an HDMI cable. Thus, new firmware can be supplied to the EDID storage unit, and the firmware of the sink device can be updated with the new firmware stored in the EDID storage unit.
　シンク機器のＥＤＩＤ格納部には、シンク機器の電源がＯＦＦの状態でも、データを書き込むことができる。従って、ＥＤＩＤ格納部を用いることにより、シンク機器が動作しているか否かによらず、いつでもシンク機器へ新しいファームウェアを供給できる。 Data can be written in the EDID storage section of the sink device even when the sink device is turned off. Therefore, by using the EDID storage unit, new firmware can be supplied to the sink device at any time regardless of whether the sink device is operating.
　また、前記ソース機器は、さらに、前記シンク機器が前記ＥＤＩＤ格納部に格納されているファームウェアを参照中であるかを判定するファームウェア書き込み状態判定部を備え、前記第２送信部は、前記ファームウェア書き込み状態判定部によって、前記シンク機器が前記ＥＤＩＤ格納部にあるファームウェアを参照中であると判定された場合、前記シンク機器が前記ＥＤＩＤ格納部にあるファームウェアを参照し終わるのを待ってから、前記新しいファームウェアを前記ＥＤＩＤ格納部へ格納してもよい。 In addition, the source device further includes a firmware write state determination unit that determines whether the sink device is referring to the firmware stored in the EDID storage unit, and the second transmission unit includes the firmware write When the state determination unit determines that the sink device is referring to the firmware in the EDID storage unit, the state determination unit waits for the sink device to finish referring to the firmware in the EDID storage unit, and then the new device Firmware may be stored in the EDID storage unit.
　このような構成により、シンク機器が前記ＥＤＩＤ格納部にあるファームウェアを参照中に、前記ＥＤＩＤ格納部へ新しいファームウェアを書き込む不都合が回避できる。 With such a configuration, it is possible to avoid the inconvenience of writing new firmware into the EDID storage unit while the sink device is referring to the firmware in the EDID storage unit.
　また、本発明のシンク機器は、ソース機器からＨＤＭＩケーブルを介して映像データを受信するシンク機器であって、前記ソース機器から内容を更新可能なＥＤＩＤ格納部と、前記シンク機器用の新しいファームウェアを特定するための情報を含むファームウェア情報コマンドを作成する生成部と、前記ファームウェア情報コマンドを前記ソース機器へ送信する送信部と、前記ファームウェア情報コマンドに応じて前記ソース機器から送られてくる前記新しいファームウェアを受信し、受信された前記新しいファームウェアを前記ＥＤＩＤ格納部へ格納する第２受信部と、前記ＥＤＩＤ格納部に格納されるべき前記新しいファームウェアの送信が完了したことを示すファームウェア準備完了コマンドを、前記ソース機器から受信する第１受信部と、前記ファームウェア準備完了コマンドが受信されると、前記ＥＤＩＤ格納部に格納された前記新しいファームウェアで前記シンク機器のファームウェアをアップデートするファームウェアアップデート実行部とを備える。 The sink device of the present invention is a sink device that receives video data from a source device via an HDMI cable, and includes an EDID storage unit that can update contents from the source device, and a new firmware for the sink device. A generation unit that creates a firmware information command including information for specifying; a transmission unit that transmits the firmware information command to the source device; and the new firmware that is sent from the source device in response to the firmware information command A second reception unit that stores the received new firmware in the EDID storage unit, and a firmware preparation completion command that indicates that transmission of the new firmware to be stored in the EDID storage unit is completed, A first reception received from the source device; Comprises a part, if the firmware ready command is received, the firmware update execution unit to update the firmware of the sink device with the new firmware stored in the EDID storage unit.
　このような構成により、新しいファームウェアを取得するための外部通信部を持たないシンク機器であっても、ソース機器からＨＤＭＩケーブルを介して供給されＥＤＩＤ格納部に格納された新しいファームウェアを用いてファームウェアをアップデートできる。 With this configuration, even if the sink device does not have an external communication unit for acquiring new firmware, the firmware is updated using the new firmware supplied from the source device via the HDMI cable and stored in the EDID storage unit. Can be updated.
　なお、本発明は、このようなソース機器およびシンク機器として実現できるだけでなく、このようなソース機器およびシンク機器をＨＤＭＩケーブルで接続して構成されるＡＶシステム、およびこのようなソース機器およびシンク機器において実行されるファームウェアのアップデート方法として実現することもできる。 The present invention can be realized not only as such a source device and a sink device, but also an AV system configured by connecting such a source device and a sink device with an HDMI cable, and such a source device and a sink device. It can also be realized as a firmware update method executed in the above.
　本発明の１つの態様によれば、シンク機器のＥＤＩＤ格納部にソース機器用の新しいファームウェアを準備して、ＨＤＭＩケーブルを介してソース機器に取得させるので、新しいファームウェアを取得するための外部通信部を持たないソース機器であっても、シンク機器のＥＤＩＤ格納部に準備された新しいファームウェアを用いてファームウェアをアップデートできる。 According to one aspect of the present invention, the new firmware for the source device is prepared in the EDID storage unit of the sink device and is acquired by the source device via the HDMI cable, so the external communication unit for acquiring the new firmware Even a source device that does not have the firmware can update the firmware using new firmware prepared in the EDID storage unit of the sink device.
　また、本発明の１つの態様によれば、ソース機器が、ＨＤＭＩケーブルを介してシンク機器用の新しいファームウェアを当該シンク機器のＥＤＩＤ格納部に書き込むので、新しいファームウェアを取得するための外部通信部を持たないシンク機器であっても、シンク機器のＥＤＩＤ格納部に準備された新しいファームウェアを用いてファームウェアをアップデートできる。 In addition, according to one aspect of the present invention, the source device writes new firmware for the sink device to the EDID storage unit of the sink device via the HDMI cable, so that an external communication unit for acquiring the new firmware is provided. Even if the sink device does not have the firmware, the firmware can be updated using the new firmware prepared in the EDID storage unit of the sink device.
図１は、本発明の実施の形態１に係るＡＶシステムの概要構成を示すブロック図である。FIG. 1 is a block diagram showing a schematic configuration of an AV system according to Embodiment 1 of the present invention. 図２は、本発明の実施の形態１に係るＡＶシステムにおいて実行されるファームウェアのアップデート動作の一例を示すシーケンスチャートである。FIG. 2 is a sequence chart showing an example of a firmware update operation executed in the AV system according to Embodiment 1 of the present invention. 図３は、本発明の実施の形態１に係るＡＶシステムにおいて実行されるファームウェアのアップデート動作の一例を示すシーケンスチャートである。FIG. 3 is a sequence chart showing an example of a firmware update operation executed in the AV system according to Embodiment 1 of the present invention. 図４は、本発明の実施の形態２に係るＡＶシステムの概要構成を示すブロック図である。FIG. 4 is a block diagram showing a schematic configuration of the AV system according to Embodiment 2 of the present invention. 図５は、本発明の実施の形態２に係るＡＶシステムにおいて実行されるファームウェアのアップデート動作の一例を示すシーケンスチャートである。FIG. 5 is a sequence chart showing an example of a firmware update operation executed in the AV system according to Embodiment 2 of the present invention. 図６は、本発明の実施の形態２に係るＡＶシステムにおいて実行されるファームウェアのアップデート動作の一例を示すシーケンスチャートである。FIG. 6 is a sequence chart showing an example of a firmware update operation executed in the AV system according to Embodiment 2 of the present invention.
　以下、本発明の実施の形態について、図面を参照しながら説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　（実施の形態１）
　図１は、本発明の一実施形態であるＡＶシステムの概要構成を示すブロック図である。 (Embodiment 1)
FIG. 1 is a block diagram showing a schematic configuration of an AV system according to an embodiment of the present invention.
　図１のＡＶシステムは、シンク機器２０１にて受信されたソース機器１０１用の新しいファームウェアを用いて、ソース機器１０１のファームウェア（以下、適宜ＦＷと略記する）をアップデートするＡＶシステムであり、ソース機器１０１とシンク機器２０１とをＨＤＭＩケーブル１００で接続して構成される。 The AV system in FIG. 1 is an AV system that updates the firmware of the source device 101 (hereinafter abbreviated as FW as appropriate) using the new firmware for the source device 101 received by the sink device 201. 101 and a sink device 201 are connected by an HDMI cable 100.
　ソース機器１０１は、シンク機器２０１にＨＤＭＩケーブル１００を介して映像データ及び音声データを送信する映像データ処理装置の一例であり、例えばＢＤ（Ｂｌｕ－ｒａｙ　Ｄｉｓｃ）プレイヤである。 The source device 101 is an example of a video data processing device that transmits video data and audio data to the sink device 201 via the HDMI cable 100, and is, for example, a BD (Blu-ray Disc) player.
　シンク機器２０１は、ソース機器１０１からＨＤＭＩケーブル１００を介して映像データ及び音声データを受信する映像データ処理装置の一例であり、例えばデジタルテレビジョン受像機である。なお、映像データ及び音声データを受信する映像データ処理装置は、シンク機器２０１に限らず、リピータ機器であってもよい。 The sink device 201 is an example of a video data processing device that receives video data and audio data from the source device 101 via the HDMI cable 100, and is, for example, a digital television receiver. The video data processing apparatus that receives video data and audio data is not limited to the sink device 201, and may be a repeater device.
　ここで、ソース機器１０１およびシンク機器２０１は、例えば、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）、ＲＯＭ、ＲＡＭなどからなるコンピュータシステム（図示省略）であってもよい。その場合、図１に示される各部は、あらかじめＲＯＭにストアされたプログラムをＣＰＵが実行することによってソフトウェア機能として実現される。 Here, the source device 101 and the sink device 201 may be a computer system (not shown) including, for example, a CPU (Central Processing Unit), a ROM, and a RAM. In this case, each unit shown in FIG. 1 is realized as a software function by the CPU executing a program stored in the ROM in advance.
　ＨＤＭＩケーブル１００は、ＨＤＭＩ規格で定義されており、映像データ及び音声データを伝送するためのＴＭＤＳ（Ｔｒａｎｓｉｔｉｏｎ　Ｍｉｎｉｍｉｚｅｄ　Ｄｉｆｆｅｒｅｎｔｉａｌ　Ｓｉｇｎａｌｉｎｇ）通信用ラインの他に、ソース機器１０１がシンク機器２０１からＥＤＩＤを読み出すために使用するＤＤＣ（Ｄｉｓｐｌａｙ　Ｄａｔａ　Ｃｈａｎｎｅｌ）通信用ラインや、ソース機器１０１とシンク機器２０１が情報の送受信を行うためのＣＥＣ（Ｃｏｎｓｕｍｅｒ　Ｅｌｅｃｔｒｏｎｉｃｓ　Ｃｏｎｔｒｏｌ）通信用ラインを有する。 The HDMI cable 100 is defined by the HDMI standard, so that the source device 101 reads out the EDID from the sink device 201 in addition to the TMDS (Transition Minimized Differential Signaling) communication line for transmitting video data and audio data. It has a DDC (Display Data Channel) communication line to be used and a CEC (Consumer Electronics Control) communication line for the source device 101 and the sink device 201 to transmit and receive information.
　ソース機器１０１は、メモリ１０２と、生成部１０３と、送信部１０４と、第１受信部１０５と、第２受信部１０６と、判定部１０７と、ＦＷアップデート実行部１０９と、ＨＤＭＩ送信部（Ｔｘ）１１３と、ＦＷ格納部１１７とから構成される。 The source device 101 includes a memory 102, a generation unit 103, a transmission unit 104, a first reception unit 105, a second reception unit 106, a determination unit 107, an FW update execution unit 109, and an HDMI transmission unit (Tx ) 113 and the FW storage unit 117.
　生成部１０３は、ＦＷ情報生成部１１０と、ＦＷ参照中情報生成部１１１と、ＦＷ参照完了情報生成部１１２とを有する。判定部１０７は、ＦＷアップデート判定部１０８を有する。 The generation unit 103 includes an FW information generation unit 110, an FW reference information generation unit 111, and an FW reference completion information generation unit 112. The determination unit 107 includes a FW update determination unit 108.
　ＨＤＭＩ送信部１１３は、ＴＭＤＳでデータの送信を行うＴＭＤＳ送信部１１４と、ＤＤＣで通信を行うＤＤＣＩ／Ｆ１１５と、ホットプラグの検知を行うＨＰＤ（Ｈｏｔ　Ｐｌｕｇ　Ｄｅｔｅｃｔ）部１１６とを有する。 The HDMI transmission unit 113 includes a TMDS transmission unit 114 that transmits data using TMDS, a DDCI / F 115 that performs communication using DDC, and an HPD (Hot Plug Detect) unit 116 that performs hot plug detection.
　シンク機器２０１は、メモリ２０２と、ＥＤＩＤ格納部２０３と、判定部２０４と、第１送信部２０５と、受信部２０６と、第２送信部２０７と、外部通信部２０８と、ＦＷ取得部２０９と、生成部２１０と、ＨＤＭＩ受信部（Ｒｘ）２１３を有している。また、特に図示しないが、シンク機器２０１は、映像を表示する表示部及び音声を出力する音声出力部を有している。 The sink device 201 includes a memory 202, an EDID storage unit 203, a determination unit 204, a first transmission unit 205, a reception unit 206, a second transmission unit 207, an external communication unit 208, and an FW acquisition unit 209. , A generation unit 210 and an HDMI reception unit (Rx) 213. Although not particularly illustrated, the sink device 201 includes a display unit that displays video and an audio output unit that outputs audio.
　判定部２０４は、ＦＷ書き込み状態判定部２１１を有する。外部通信部２０８は、チューナ機能やネットワーク機能などを有し、外部との通信によりソース機器１０１用の新しいファームウェアを取得可能な通信部である。生成部２１０は、ＦＷ準備完了情報生成部２１２を有する。 The determination unit 204 includes an FW write state determination unit 211. The external communication unit 208 has a tuner function, a network function, and the like, and is a communication unit that can acquire new firmware for the source device 101 through communication with the outside. The generation unit 210 includes an FW preparation completion information generation unit 212.
　ＨＤＭＩ受信部２１３は、ＴＭＤＳのデータの受信を行うＴＭＤＳ受信部２１４と、ＤＤＣで通信を行うＤＤＣＩ／Ｆ２１５と、ホットプラグの検知を行うＨＰＤ部２１６とを有する。 The HDMI receiving unit 213 includes a TMDS receiving unit 214 that receives TMDS data, a DDCI / F 215 that performs communication using a DDC, and an HPD unit 216 that performs hot plug detection.
　図２、図３は、このように構成されたソース機器１０１およびシンク機器２０１からなるＡＶシステムにおいて実行されるファームウェアのアップデート動作の一例を示すシーケンスチャートである。 2 and 3 are sequence charts showing an example of firmware update operation executed in the AV system including the source device 101 and the sink device 201 configured as described above.
　ソース機器１０１とシンク機器２０１とがＨＤＭＩケーブル１００で接続された場合、ＨＰＤ部１１６、２１６はホットプラグの検知を開始し、ＴＭＤＳ送信部１１４は映像データおよび音声データの出力を開始し、ＴＭＤＳ受信部２１４は映像データおよび音声データの受信を行い、ＤＤＣＩ／Ｆ１１５はＤＤＣＩ／Ｆ２１５と通信を開始する。 When the source device 101 and the sink device 201 are connected by the HDMI cable 100, the HPD units 116 and 216 start detecting hot plugs, the TMDS transmission unit 114 starts outputting video data and audio data, and receives TMDS reception. The unit 214 receives video data and audio data, and the DDCI / F 115 starts communication with the DDCI / F 215.
　図２のステップＳ１０では、ソース機器１０１のＦＷ情報生成部１１０は、ソース機器１０１用の新しいファームウェアを特定するための情報として、例えばソース機器１０１の型番と現行のファームウェアのバージョン番号とを含むＦＷ情報コマンドを生成する。 In step S10 of FIG. 2, the FW information generation unit 110 of the source device 101 includes, as information for specifying new firmware for the source device 101, for example, an FW that includes the model number of the source device 101 and the version number of the current firmware. Generate information commands.
　ステップＳ１１では、ソース機器１０１の送信部１０４は、ステップＳ１１で生成したＦＷ情報コマンドをシンク機器２０１に送信し、シンク機器２０１の受信部２０６は、このコマンドを受信し、メモリ２０２に保存する。 In step S11, the transmission unit 104 of the source device 101 transmits the FW information command generated in step S11 to the sink device 201, and the reception unit 206 of the sink device 201 receives this command and stores it in the memory 202.
　ステップＳ１２では、ＦＷ書き込み状態判定部２１１は、取得したＦＷ情報コマンドよりソース機器１０１用の新しいファームウェアを特定し、ステップＳ１３では、ＦＷ取得部２０９は外部通信部２０８を使用してソース機器１０１用の新しいファームウェアの取得を行う。 In step S12, the FW write state determination unit 211 identifies new firmware for the source device 101 based on the acquired FW information command. In step S13, the FW acquisition unit 209 uses the external communication unit 208 for the source device 101. Get new firmware.
　外部通信部２０８は、例えば、インターネットを介してソース機器１０１のメーカーが運営する製品サポートサイトに接続し、ソース機器１０１の型番と現行のファームウェアのバージョン番号とを知らせることによって新しいファームウェアの有無を照会する。ステップ１３では、新しいファームウェアがある場合に、当該新しいファームウェアを取得してもよい。新しいファームウェアが取得された場合は、ステップＳ１４に進む。 The external communication unit 208, for example, connects to a product support site operated by the manufacturer of the source device 101 via the Internet, and inquires about the presence of new firmware by notifying the model number of the source device 101 and the version number of the current firmware. To do. In step 13, when there is new firmware, the new firmware may be acquired. If new firmware has been acquired, the process proceeds to step S14.
　ステップＳ１４では、ＦＷ書き込み状態判定部２１１は、ソース機器１０１がＥＤＩＤ格納部２０３に格納されているファームウェアを参照中であるかを、例えば、ＦＷ参照中コマンドが受信された後で、ＦＷ参照完了コマンドがまだ受信されていないことにより判定する。この判定は、ＥＤＩＤ格納部２０３にあるファームウェアを書き換えてもよいか確認するために行われる。 In step S14, the FW write state determination unit 211 determines whether the source device 101 is referring to the firmware stored in the EDID storage unit 203. For example, after the FW reference command is received, the FW reference is completed. Judged by the fact that the command has not yet been received. This determination is performed to confirm whether the firmware in the EDID storage unit 203 may be rewritten.
　ソース機器１０１がＥＤＩＤ格納部２０３にあるファームウェアを参照中であると判定された場合は、ＦＷ参照完了コマンドが受信されるのを待ってからステップＳ１５に進み、その他の場合は、直ちにステップＳ１５に進む。 If it is determined that the source device 101 is referring to the firmware stored in the EDID storage unit 203, the process waits for the reception of the FW reference completion command before proceeding to step S15. Otherwise, the process immediately proceeds to step S15. move on.
　ステップＳ１５では、第２送信部２０７は、外部通信部２０８を使用して取得したソース機器１０１用の新しいファームウェアを、ＥＤＩＤ格納部２０３へ書き込み、ＦＷ準備完了情報生成部２１２は、新しいファームウェアが入手されたことをソース機器１０１に通知するためのＦＷ準備完了コマンドを生成する。 In step S15, the second transmission unit 207 writes the new firmware for the source device 101 acquired using the external communication unit 208 to the EDID storage unit 203, and the FW preparation completion information generation unit 212 obtains the new firmware. A FW preparation completion command is generated for notifying the source device 101 of the completion.
　ステップＳ１６では、シンク機器２０１の第１送信部２０５は、ＦＷ準備完了情報生成部２１２で生成したＦＷ準備完了コマンドをソース機器１０１に送信する。ソース機器１０１の第１受信部１０５はＦＷ準備完了コマンドを受信すると、図３のステップＳ１７に進む。 In step S16, the first transmission unit 205 of the sink device 201 transmits the FW preparation completion command generated by the FW preparation completion information generation unit 212 to the source device 101. When the first reception unit 105 of the source device 101 receives the FW preparation completion command, the process proceeds to step S17 in FIG.
　図３のステップＳ１７では、ソース機器１０１のＦＷ参照中情報生成部１１１は、ＥＤＩＤ格納部２０３にあるファームウェアを参照中であることをシンク機器２０１に通知するためのＦＷ参照中コマンドを生成し、送信部１０４はＦＷ参照中コマンドをシンク機器２０１に送信する。ＦＷ参照中コマンドは、シンク機器２０１の受信部２０６にて受信される。 In step S17 of FIG. 3, the FW referring information generation unit 111 of the source device 101 generates a FW reference command for notifying the sink device 201 that the firmware in the EDID storage unit 203 is being referenced, The transmission unit 104 transmits the FW reference command to the sink device 201. The FW referring command is received by the receiving unit 206 of the sink device 201.
　ステップＳ１８では、第２受信部１０６は、シンク機器２０１のＥＤＩＤ格納部２０３に書き込まれたファームウェアを、ＤＤＣＩ／Ｆ１１５、２１５を使用してＤＤＣ通信用ライン経由で読み出し、読み出したファームウェアをメモリ１０２に格納する。ファームウェアの読み出しが完了すると、ＦＷ参照完了情報生成部１１２は、ファームウェアの参照が完了したことをシンク機器２０１に通知するためのＦＷ参照完了コマンドを生成する。 In step S <b> 18, the second reception unit 106 reads the firmware written in the EDID storage unit 203 of the sink device 201 via the DDC communication line using the DDCI / F 115 and 215, and reads the read firmware into the memory 102. Store. When the reading of the firmware is completed, the FW reference completion information generation unit 112 generates an FW reference completion command for notifying the sink device 201 that the firmware reference is completed.
　ステップＳ１９では、ソース機器１０１の送信部１０４はＦＷ参照完了コマンドをシンク機器２０１に送信する。ＦＷ参照完了コマンドは、シンク機器２０１の受信部２０６にて受信される。 In step S19, the transmission unit 104 of the source device 101 transmits an FW reference completion command to the sink device 201. The FW reference completion command is received by the receiving unit 206 of the sink device 201.
　ステップＳ２０では、ＦＷアップデート実行部１０９が、ステップＳ１８でメモリ１０２に格納されたファームウェアを使用してＦＷ格納部１１７にあるファームウェアをアップデートする。これにより、一連のアップデート動作を終了する。 In step S20, the FW update execution unit 109 updates the firmware in the FW storage unit 117 using the firmware stored in the memory 102 in step S18. Thereby, a series of update operations are completed.
　以上説明したように、図１のソース機器１０１とシンク機器２０１とをＨＤＭＩケーブル１００で接続して構成されたＡＶシステムによれば、外部通信部を有しないソース機器１０１のＦＷアップデートを自動で行うことができる。 As described above, according to the AV system configured by connecting the source device 101 and the sink device 201 of FIG. 1 with the HDMI cable 100, the FW update of the source device 101 having no external communication unit is automatically performed. be able to.
　（実施の形態２）
　図４は、本発明の一実施形態であるＡＶシステムの概要構成を示すブロック図である。 (Embodiment 2)
FIG. 4 is a block diagram showing a schematic configuration of an AV system according to an embodiment of the present invention.
　図４のＡＶシステムは、ソース機器４０１にて受信されたシンク機器３０１用の新しいファームウェアを用いて、シンク機器３０１のファームウェアをアップデートするＡＶシステムであり、ソース機器４０１とシンク機器３０１とをＨＤＭＩケーブル３００で接続して構成される。 The AV system in FIG. 4 is an AV system that updates the firmware of the sink device 301 using the new firmware for the sink device 301 received by the source device 401, and connects the source device 401 and the sink device 301 to the HDMI cable. 300 is connected.
　このＡＶシステムは、ソース機器からシンク機器のファームウェアをアップデートする点では従来のアップデートシステムと同じであるが、新しいファームウェアをシンク機器のＥＤＩＤ格納部を用いて伝送する点に特徴がある。 This AV system is the same as the conventional update system in that the firmware of the sink device is updated from the source device, but is characterized in that new firmware is transmitted using the EDID storage unit of the sink device.
　シンク機器３０１は、ソース機器４０１からＨＤＭＩケーブル３００を介して映像データ及び音声データを受信する映像データ処理装置の一例であり、例えばデジタルテレビジョン受像機である。 The sink device 301 is an example of a video data processing device that receives video data and audio data from the source device 401 via the HDMI cable 300, and is, for example, a digital television receiver.
　ソース機器４０１は、シンク機器３０１にＨＤＭＩケーブル３００を介して映像データ及び音声データを送信する映像データ処理装置の一例であり、例えばＢＤプレイヤである。 The source device 401 is an example of a video data processing device that transmits video data and audio data to the sink device 301 via the HDMI cable 300, and is a BD player, for example.
　ここで、ソース機器４０１およびシンク機器３０１は、例えば、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）、ＲＯＭ、ＲＡＭなどからなるコンピュータシステム（図示省略）であってもよい。その場合、図４に示される各部は、あらかじめＲＯＭにストアされたプログラムをＣＰＵが実行することによってソフトウェア機能として実現される。 Here, the source device 401 and the sink device 301 may be a computer system (not shown) including, for example, a CPU (Central Processing Unit), a ROM, a RAM, and the like. In this case, each unit shown in FIG. 4 is realized as a software function by the CPU executing a program stored in the ROM in advance.
　ＨＤＭＩケーブル３００は、ＨＤＭＩ規格で定義されており、映像データ及び音声データを伝送するためのＴＭＤＳ通信用ラインの他に、シンク機器３０１がソース機器４０１からＥＤＩＤを受け取るために使用するＤＤＣ通信用ラインや、シンク機器３０１とソース機器４０１が情報の送受信を行うためのＣＥＣ通信用ラインを有する。 The HDMI cable 300 is defined by the HDMI standard. In addition to the TMDS communication line for transmitting video data and audio data, the DDC communication line used by the sink device 301 to receive EDID from the source device 401. In addition, the sink device 301 and the source device 401 have a CEC communication line for transmitting and receiving information.
　シンク機器３０１は、メモリ３０２と、生成部３０３と、送信部３０４と、第１受信部３０５と、第２受信部３０６と、判定部３０７と、ＥＤＩＤ格納部３０８と、ＦＷアップデート実行部３１０と、ＨＤＭＩ受信部３１４と、ＦＷ格納部３１８とを有する。また、特に図示しないが、シンク機器３０１は、映像を表示する表示部及び音声を出力する音声出力部を有している。 The sink device 301 includes a memory 302, a generation unit 303, a transmission unit 304, a first reception unit 305, a second reception unit 306, a determination unit 307, an EDID storage unit 308, and an FW update execution unit 310. , An HDMI receiving unit 314 and an FW storage unit 318. Although not particularly illustrated, the sink device 301 includes a display unit that displays video and an audio output unit that outputs audio.
　判定部３０７は、ＦＷアップデート判定部３０９を有する。生成部３０３は、ＦＷ情報生成部３１１と、ＦＷ参照中情報生成部３１２と、ＦＷ参照完了情報生成部３１３とを有する。 The determination unit 307 includes a FW update determination unit 309. The generation unit 303 includes an FW information generation unit 311, an FW reference information generation unit 312, and an FW reference completion information generation unit 313.
　ＨＤＭＩ受信部３１４は、ＴＭＤＳでデータの受信を行うＴＭＤＳ受信部３１５と、ＤＤＣで通信を行うＤＤＣＩ／Ｆ３１６と、ホットプラグの検知を行うＨＰＤ部３１７を有する。 The HDMI receiving unit 314 includes a TMDS receiving unit 315 that receives data using TMDS, a DDCI / F 316 that performs communication using DDC, and an HPD unit 317 that performs hot plug detection.
　ソース機器４０１は、メモリ４０２と、判定部４０３と、第１送信部４０４と、受信部４０５と、第２送信部４０６と、外部通信部４０７と、ＦＷ取得部４０８と、生成部４０９と、ＨＤＭＩ送信部４１２を有している。 The source device 401 includes a memory 402, a determination unit 403, a first transmission unit 404, a reception unit 405, a second transmission unit 406, an external communication unit 407, an FW acquisition unit 408, a generation unit 409, An HDMI transmission unit 412 is included.
　判定部４０３は、ＦＷ書き込み状態判定部４１０を有する。生成部４０９は、ＦＷ準備完了情報生成部４１１を有する。外部通信部４０７は、チューナ機能やネットワーク機能などを有し、外部との通信によりシンク機器３０１用の新しいファームウェアを取得可能な通信部である。 The determination unit 403 includes an FW write state determination unit 410. The generation unit 409 includes an FW preparation completion information generation unit 411. The external communication unit 407 has a tuner function, a network function, and the like, and is a communication unit that can acquire new firmware for the sink device 301 by communication with the outside.
　ＨＤＭＩ送信部４１２は、ＴＭＤＳのデータの送信を行うＴＭＤＳ送信部４１３と、ＤＤＣで通信を行うＤＤＣＩ／Ｆ４１４と、ホットプラグの検知を行うＨＰＤ部４１５を有する。 The HDMI transmission unit 412 includes a TMDS transmission unit 413 that transmits TMDS data, a DDCI / F 414 that performs communication using a DDC, and an HPD unit 415 that performs hot plug detection.
　図５、図６は、このように構成されたソース機器４０１およびシンク機器３０１からなるＡＶシステムにおいて実行されるファームウェアのアップデート動作の一例を示すシーケンスチャートである。 5 and 6 are sequence charts showing an example of the firmware update operation executed in the AV system including the source device 401 and the sink device 301 configured as described above.
　シンク機器３０１とソース機器４０１とがＨＤＭＩケーブル３００で接続された場合、ＨＰＤ部４１５、３１７はホットプラグの検知を開始し、ＴＭＤＳ送信部４１３は映像データおよび音声データの出力を開始し、ＴＭＤＳ受信部３１５は映像データおよび音声データの受信を行い、ＤＤＣＩ／Ｆ４１４はＤＤＣＩ／Ｆ３１６と通信を開始する。 When the sink device 301 and the source device 401 are connected via the HDMI cable 300, the HPD units 415 and 317 start detecting hot plugs, the TMDS transmission unit 413 starts outputting video data and audio data, and receives TMDS reception. The unit 315 receives video data and audio data, and the DDCI / F 414 starts communication with the DDCI / F 316.
　図５のステップＳ３１では、シンク機器３０１のＦＷ情報生成部３１１は、シンク機器３０１用の新しいファームウェアを特定するための情報（例えばシンク機器３０１の型番と現行のファームウェアのバージョン番号）とを含むＦＷ情報コマンドを生成する。 In step S31 of FIG. 5, the FW information generation unit 311 of the sink device 301 includes FW including information for identifying new firmware for the sink device 301 (for example, the model number of the sink device 301 and the version number of the current firmware). Generate information commands.
　ステップＳ３２では、シンク機器３０１の送信部３０４は、ステップＳ３１で生成したＦＷ情報コマンドをソース機器４０１に送信し、ソース機器４０１の受信部４０５は、このコマンドを受信し、メモリ４０２に保存する。 In step S32, the transmission unit 304 of the sink device 301 transmits the FW information command generated in step S31 to the source device 401, and the reception unit 405 of the source device 401 receives this command and stores it in the memory 402.
　ステップＳ３３では、ＦＷ書き込み状態判定部４１０は、取得したＦＷ情報コマンドよりシンク機器３０１用の新しいファームウェアを特定し、ＦＷ取得部４０８は外部通信部４０７を使用してシンク機器３０１の新しいファームウェアの取得を行う。新しいファームウェアを取得した場合は、ステップＳ３４に進む。 In step S33, the FW write state determination unit 410 identifies new firmware for the sink device 301 from the acquired FW information command, and the FW acquisition unit 408 acquires the new firmware of the sink device 301 using the external communication unit 407. I do. If new firmware has been acquired, the process proceeds to step S34.
　ステップＳ３４で、シンク機器３０１の電源がＯＦＦされる。なお、ステップＳ３４にてシンク機器３０１の電源がＯＦＦされることは、必須ではない。ステップＳ３４は、シンク機器３０１の電源がＯＦＦされている間に、新しいファームウェアをソース機器４０１からシンク機器３０１のＥＤＩＤ格納部３０８へ転送できることを明確に示すために設けられる。ステップＳ３５以降のシーケンスは、シンク機器３０１の電源がＯＮおよびＯＦＦの何れの状態にあっても同様に実行できる。 In step S34, the power of the sink device 301 is turned off. It is not essential that the sink device 301 is turned off in step S34. Step S34 is provided to clearly indicate that new firmware can be transferred from the source device 401 to the EDID storage unit 308 of the sink device 301 while the power source of the sink device 301 is turned off. The sequence after step S35 can be executed in the same manner regardless of whether the sink device 301 is powered on or off.
　ステップＳ３５では、ＦＷ書き込み状態判定部４１０は、シンク機器３０１がＥＤＩＤ格納部３０８にあるファームウェアを参照中であるかを、例えば、ＦＷ参照中コマンドが受信された後で、ＦＷ参照完了コマンドがまだ受信されていないことにより判定する。 In step S35, the FW write state determination unit 410 determines whether the sink device 301 is referring to the firmware stored in the EDID storage unit 308. For example, after the FW reference command is received, the FW reference completion command is still Judged by the fact that it has not been received.
　この判定は、ＥＤＩＤ格納部３０８にあるファームウェアを書き換えてもよいかを確認するために行われる。シンク機器３０１がＥＤＩＤ格納部３０８にあるファームウェアを参照中であると判定された場合は、ＦＷ参照完了コマンドが受信されるのを待ってからステップＳ３６に進み、その他の場合は、直ちにステップＳ３６に進む。 This determination is performed to confirm whether the firmware in the EDID storage unit 308 may be rewritten. If it is determined that the sink device 301 is referring to the firmware in the EDID storage unit 308, the process proceeds to step S36 after waiting for the reception of the FW reference completion command. Otherwise, the process immediately proceeds to step S36. move on.
　ステップＳ３６では、第２送信部４０６は、外部通信部４０７を使用して取得したシンク機器３０１用の新しいファームウェアを、ＤＤＣＩ／Ｆ４１４、３１６を使用してＤＤＣ通信用ライン経由でＥＤＩＤ格納部３０８へ書き込み、ＦＷ準備完了情報生成部４１１は、新しいファームウェアが入手されたことをシンク機器３０１に通知するためのＦＷ準備完了コマンドを生成する。 In step S 36, the second transmission unit 406 transmits the new firmware for the sink device 301 acquired using the external communication unit 407 to the EDID storage unit 308 via the DDC communication line using the DDCI / F 414 and 316. The writing and FW preparation completion information generation unit 411 generates an FW preparation completion command for notifying the sink device 301 that new firmware has been acquired.
　ステップＳ３７では、ソース機器４０１の第１送信部４０４は、ＦＷ準備完了情報生成部４１１で生成したＦＷ準備完了コマンドをシンク機器３０１に送信する。シンク機器３０１の第１受信部３０５はＦＷ準備完了コマンドを受信する。 In step S37, the first transmission unit 404 of the source device 401 transmits the FW preparation completion command generated by the FW preparation completion information generation unit 411 to the sink device 301. The first receiving unit 305 of the sink device 301 receives the FW preparation completion command.
　続いて、図６のステップＳ４１では、ステップＳ３４でシンク機器３０１の電源がＯＦＦされている場合に、シンク機器３０１の電源がＯＮされる。 Subsequently, in step S41 of FIG. 6, when the power of the sink device 301 is turned off in step S34, the power of the sink device 301 is turned on.
　ステップＳ４２では、シンク機器３０１のＦＷ参照中情報生成部３１２は、ＥＤＩＤ格納部３０８にあるファームウェアを参照中であることをソース機器４０１に通知するためのＦＷ参照中コマンドを生成し、送信部３０４はＦＷ参照中コマンドをソース機器４０１に送信する。ＦＷ参照中コマンドは、ソース機器４０１の受信部４０５にて受信される。 In step S42, the FW referring information generation unit 312 of the sink device 301 generates a FW reference command for notifying the source device 401 that the firmware in the EDID storage unit 308 is being referenced, and the transmission unit 304. Transmits a FW reference command to the source device 401. The FW referencing command is received by the receiving unit 405 of the source device 401.
　ステップＳ４３では、ＦＷアップデート実行部３１０が、ステップＳ３６でＥＤＩＤ格納部３０８に書き込まれた新しいファームウェアを、メモリ３０２にコピーする。 In step S43, the FW update execution unit 310 copies the new firmware written in the EDID storage unit 308 in step S36 to the memory 302.
　ＥＤＩＤ格納部３０８にある新しいファームウェアがメモリ３０２にコピーされた後、ステップＳ４４では、シンク機器３０１の送信部３０４はＦＷ参照完了コマンドをシンク機器２０１に送信する。ＦＷ参照完了コマンドは、ソース機器４０１の受信部４０５にて受信される。 After the new firmware in the EDID storage unit 308 is copied to the memory 302, the transmission unit 304 of the sink device 301 transmits an FW reference completion command to the sink device 201 in step S44. The FW reference completion command is received by the receiving unit 405 of the source device 401.
　ステップＳ４５では、ＦＷアップデート実行部３１０が、ステップＳ４３でメモリ３０２にコピーされた新しいファームウェアを使用してＦＷ格納部３１８にあるファームウェアをアップデートする。 In step S45, the FW update execution unit 310 updates the firmware in the FW storage unit 318 using the new firmware copied to the memory 302 in step S43.
　これにより、一連のアップデート動作を終了する。 This completes the series of update operations.
　以上説明したように、図４のシンク機器３０１とソース機器４０１とをＨＤＭＩケーブル３００で接続して構成されたＡＶシステムによると、外部通信部を有しないシンク機器３０１のファームウェアアップデートを自動で行うことができる。 As described above, according to the AV system configured by connecting the sink device 301 and the source device 401 in FIG. 4 with the HDMI cable 300, the firmware update of the sink device 301 having no external communication unit is automatically performed. Can do.
　本発明は、シンク機器とソース機器とをＨＤＭＩケーブルで接続して構成されたＡＶシステムに利用でき、特に、ＡＶデジタル家電等に有用である。 The present invention can be used in an AV system configured by connecting a sink device and a source device with an HDMI cable, and is particularly useful for an AV digital home appliance or the like.
　　１００　　ＨＤＭＩケーブル
　　１０１　　ソース機器
　　１０２　　メモリ
　　１０３　　生成部
　　１０４　　送信部
　　１０５　　第１受信部
　　１０６　　第２受信部
　　１０７　　判定部
　　１０８　　ＦＷアップデート判定部
　　１０９　　ＦＷアップデート実行部
　　１１０　　ＦＷ情報生成部
　　１１１　　ＦＷ参照中情報生成部
　　１１２　　ＦＷ参照完了情報生成部
　　１１３　　ＨＤＭＩ送信部
　　１１４　　ＴＭＤＳ送信部
　　１１５　　ＤＤＣＩ／Ｆ
　　１１６　　ＨＰＤ部
　　１１７　　ＦＷ格納部
　　２０１　　シンク機器
　　２０２　　メモリ
　　２０３　　ＥＤＩＤ格納部
　　２０４　　判定部
　　２０５　　第１送信部
　　２０６　　受信部
　　２０７　　第２送信部
　　２０８　　外部通信部
　　２０９　　ＦＷ取得部
　　２１０　　生成部
　　２１１　　ＦＷ書き込み状態判定部
　　２１２　　ＦＷ準備完了情報生成部
　　２１３　　ＨＤＭＩ受信部
　　２１４　　ＴＭＤＳ受信部
　　２１５　　ＤＤＣＩ／Ｆ
　　２１６　　ＨＰＤ部
　　３００　　ＨＤＭＩケーブル
　　３０１　　シンク機器
　　３０２　　メモリ
　　３０３　　生成部
　　３０４　　送信部
　　３０５　　第１受信部
　　３０６　　第２受信部
　　３０７　　判定部
　　３０８　　ＥＤＩＤ格納部
　　３０９　　ＦＷアップデート判定部
　　３１０　　ＦＷアップデート実行部
　　３１１　　ＦＷ情報生成部
　　３１２　　ＦＷ参照中情報生成部
　　３１３　　ＦＷ参照完了情報生成部
　　３１４　　ＨＤＭＩ受信部
　　３１５　　ＴＭＤＳ受信部
　　３１６　　ＤＤＣＩ／Ｆ
　　３１７　　ＨＰＤ部
　　３１８　　ＦＷ格納部
　　４０１　　ソース機器
　　４０２　　メモリ
　　４０３　　判定部
　　４０４　　第１送信部
　　４０５　　受信部
　　４０６　　第２送信部
　　４０７　　外部通信部
　　４０８　　ＦＷ取得部
　　４０９　　生成部
　　４１０　　ＦＷ書き込み状態判定部
　　４１１　　ＦＷ準備完了情報生成部
　　４１２　　ＨＤＭＩ送信部
　　４１３　　ＴＭＤＳ送信部
　　４１４　　ＤＤＣＩ／Ｆ
　　４１５　　ＨＰＤ部 DESCRIPTION OF SYMBOLS 100 HDMI cable 101 Source device 102 Memory 103 Generation part 104 Transmission part 105 1st reception part 106 2nd reception part 107 Determination part 108 FW update determination part 109 FW update execution part 110 FW information generation part 111 FW reference information generation part 112 FW reference completion information generation unit 113 HDMI transmission unit 114 TMDS transmission unit 115 DDCI / F
116 HPD unit 117 FW storage unit 201 sink device 202 memory 203 EDID storage unit 204 determination unit 205 first transmission unit 206 reception unit 207 second transmission unit 208 external communication unit 209 FW acquisition unit 210 generation unit 211 FW write state determination unit 212 FW preparation completion information generation unit 213 HDMI reception unit 214 TMDS reception unit 215 DDCI / F
216 HPD unit 300 HDMI cable 301 Sink device 302 Memory 303 generation unit 304 transmission unit 305 first reception unit 306 second reception unit 307 determination unit 308 EDID storage unit 309 FW update determination unit 310 FW update execution unit 311 FW information generation unit 312 FW reference information generation unit 313 FW reference completion information generation unit 314 HDMI reception unit 315 TMDS reception unit 316 DDCI / F
317 HPD unit 318 FW storage unit 401 source device 402 memory 403 determination unit 404 first transmission unit 405 reception unit 406 second transmission unit 407 external communication unit 408 FW acquisition unit 409 generation unit 410 FW write state determination unit 411 FW preparation completion information Generation unit 412 HDMI transmission unit 413 TMDS transmission unit 414 DDCI / F
415 HPD Department

Claims (10)

  1. 　シンク機器にＨＤＭＩ（Ｈｉｇｈ　Ｄｅｆｉｎｉｔｉｏｎ　Ｍｕｌｔｉｍｅｄｉａ　Ｉｎｔｅｒｆａｃｅ）ケーブルを介して映像データを送信するソース機器であって、
    　前記ソース機器用の新しいファームウェアを特定するための情報を含むファームウェア情報コマンドを作成する生成部と、
    　前記ファームウェア情報コマンドを前記シンク機器へ送信する送信部と、
    　前記ファームウェア情報コマンドで特定される前記新しいファームウェアが前記シンク機器に設けられかつ内容が前記ソース機器から参照可能なＥＤＩＤ（Ｅｘｔｅｎｄｅｄ　Ｄｉｓｐｌａｙ　Ｉｄｅｎｔｉｆｉｃａｔｉｏｎ　Ｄａｔａ）メモリに格納されたことを示すファームウェア準備完了コマンドを、前記シンク機器から受信する第１受信部と、
    　前記ファームウェア準備完了コマンドが受信されると、前記シンク機器から前記新しいファームウェアを参照する第２受信部と、
    　前記第２受信部によって参照された前記新しいファームウェアで前記ソース機器のファームウェアをアップデートするファームウェアアップデート実行部と
    　を備えるソース機器。     A source device that transmits video data to a sink device via an HDMI (High Definition Multimedia Interface) cable,
    A generation unit for creating a firmware information command including information for identifying new firmware for the source device;
    A transmission unit for transmitting the firmware information command to the sink device;
    A firmware preparation completion command indicating that the new firmware specified by the firmware information command is provided in the sink device and the contents are stored in an extended display identification data (EDID) memory that can be referred to from the source device; A first receiver that receives from the sink device;
    When the firmware preparation completion command is received, a second receiving unit that refers to the new firmware from the sink device;
    A source device comprising: a firmware update execution unit that updates firmware of the source device with the new firmware referenced by the second reception unit.
  2. 　ソース機器からＨＤＭＩケーブルを介して映像データを受信するシンク機器であって、
    　前記ソース機器から内容が参照可能なＥＤＩＤ格納部と、
    　前記ソース機器の新しいファームウェアを特定するための情報を含むファームウェア情報コマンドを、前記ソース機器から受信する受信部と、
    　受信された前記ファームウェア情報コマンドに従って、前記ソース機器用の新しいファームウェアを取得するファームウェア取得部と、
    　取得された前記新しいファームウェアを前記ＥＤＩＤ格納部へ格納する第２送信部と、
    　前記新しいファームウェアが前記ＥＤＩＤ格納部に格納されたことを示すファームウェア準備完了コマンドを前記ソース機器へ送信する第１送信部と
    　を備えるシンク機器。     A sink device that receives video data from a source device via an HDMI cable,
    An EDID storage unit whose contents can be referred to from the source device;
    A receiving unit for receiving a firmware information command including information for specifying new firmware of the source device from the source device;
    A firmware acquisition unit for acquiring new firmware for the source device according to the received firmware information command;
    A second transmission unit for storing the acquired new firmware in the EDID storage unit;
    A sink device comprising: a first transmission unit that transmits a firmware preparation completion command indicating that the new firmware is stored in the EDID storage unit to the source device.
  3. 　前記シンク機器は、さらに、
    　前記ソース機器が前記ＥＤＩＤ格納部に格納されているファームウェアを参照中であるかを判定するファームウェア書き込み状態判定部を備え、
    　前記第２送信部は、前記ファームウェア書き込み状態判定部によって、前記ソース機器が前記ＥＤＩＤ格納部にあるファームウェアを参照中であると判定された場合、前記ソース機器が前記ＥＤＩＤ格納部にあるファームウェアを参照し終わるのを待ってから、前記新しいファームウェアを前記ＥＤＩＤ格納部へ格納する
    　請求項２に記載のシンク機器。     The sink device further includes:
    A firmware writing state determination unit that determines whether the source device is referring to firmware stored in the EDID storage unit;
    The second transmission unit refers to the firmware in which the source device is in the EDID storage unit when the firmware writing state determination unit determines that the source device is referring to the firmware in the EDID storage unit The sink device according to claim 2, wherein the new firmware is stored in the EDID storage unit after waiting for completion.
  4. 　請求項１に記載のソース機器と請求項２または３に記載のシンク機器とを、ＨＤＭＩケーブルで接続して構成されたＡＶシステム。 An AV system configured by connecting the source device according to claim 1 and the sink device according to claim 2 or 3 with an HDMI cable.
  5. 　シンク機器にＨＤＭＩケーブルを介して映像データを送信するソース機器であって、
    　前記シンク機器用の新しいファームウェアを特定するための情報を含むファームウェア情報コマンドを、前記シンク機器から受信する受信部と、
    　受信された前記ファームウェア情報コマンドに従って、前記シンク機器用の新しいファームウェアを取得するファームウェア取得部と、
    　取得された前記新しいファームウェアを、前記シンク機器に設けられかつ内容が前記ソース機器から更新可能なＥＤＩＤ格納部に格納する第２送信部と、
    　前記ＥＤＩＤ格納部に格納されるべき前記新しいファームウェアを送信し終わったことを示すファームウェア準備完了コマンドを前記シンク機器へ送信する第１送信部と
    　を備えるソース機器。     A source device that transmits video data to a sink device via an HDMI cable,
    A receiver that receives from the sink device a firmware information command including information for identifying new firmware for the sink device;
    A firmware acquisition unit for acquiring new firmware for the sink device according to the received firmware information command;
    A second transmission unit that stores the acquired new firmware in an EDID storage unit that is provided in the sink device and whose contents can be updated from the source device;
    A source device comprising: a first transmission unit that transmits a firmware preparation completion command indicating that the new firmware to be stored in the EDID storage unit has been transmitted to the sink device.
  6. 　前記ソース機器は、さらに、
    　前記シンク機器が前記ＥＤＩＤ格納部に格納されているファームウェアを参照中であるかを判定するファームウェア書き込み状態判定部を備え、
    　前記第２送信部は、前記ファームウェア書き込み状態判定部によって、前記シンク機器が前記ＥＤＩＤ格納部にあるファームウェアを参照中であると判定された場合、前記シンク機器が前記ＥＤＩＤ格納部にあるファームウェアを参照し終わるのを待ってから、前記新しいファームウェアを前記ＥＤＩＤ格納部へ格納する
    　請求項５に記載のソース機器。     The source device further includes:
    A firmware writing state determination unit that determines whether the sink device is referring to the firmware stored in the EDID storage unit;
    The second transmission unit refers to the firmware in which the sink device is in the EDID storage unit when the firmware writing state determination unit determines that the sink device is referring to the firmware in the EDID storage unit 6. The source device according to claim 5, wherein the new firmware is stored in the EDID storage unit after waiting for completion.
  7. 　ソース機器からＨＤＭＩケーブルを介して映像データを受信するシンク機器であって、
    　前記ソース機器から内容を更新可能なＥＤＩＤ格納部と、
    　前記シンク機器用の新しいファームウェアを特定するための情報を含むファームウェア情報コマンドを作成する生成部と、
    　前記ファームウェア情報コマンドを前記ソース機器へ送信する送信部と、
    　前記ファームウェア情報コマンドに応じて前記ソース機器から送られてくる前記新しいファームウェアを受信し、受信された前記新しいファームウェアを前記ＥＤＩＤ格納部へ格納する第２受信部と、
    　前記ＥＤＩＤ格納部に格納されるべき前記新しいファームウェアの送信が完了したことを示すファームウェア準備完了コマンドを、前記ソース機器から受信する第１受信部と、
    　前記ファームウェア準備完了コマンドが受信されると、前記ＥＤＩＤ格納部に格納された前記新しいファームウェアで前記シンク機器のファームウェアをアップデートするファームウェアアップデート実行部と
    　を備えるシンク機器。     A sink device that receives video data from a source device via an HDMI cable,
    An EDID storage unit capable of updating contents from the source device;
    A generation unit for creating a firmware information command including information for identifying new firmware for the sink device;
    A transmission unit for transmitting the firmware information command to the source device;
    A second receiving unit that receives the new firmware sent from the source device in response to the firmware information command, and stores the received new firmware in the EDID storage unit;
    A first receiver that receives from the source device a firmware ready command indicating that transmission of the new firmware to be stored in the EDID storage is complete;
    A sink device comprising: a firmware update execution unit that updates firmware of the sink device with the new firmware stored in the EDID storage unit when the firmware preparation completion command is received.
  8. 　請求項５または６に記載のソース機器と請求項７に記載のシンク機器とを、ＨＤＭＩケーブルで接続して構成されたＡＶシステム。 An AV system configured by connecting the source device according to claim 5 and the sink device according to claim 7 with an HDMI cable.
  9. 　シンク機器とソース機器とをＨＤＭＩケーブルで接続して構成されたＡＶシステムにおいて、前記シンク機器から前記ソース機器のファームウェアをアップデートする方法であって、
    　前記ソース機器において、
    　前記ソース機器用の新しいファームウェアを特定するための情報を含むファームウェア情報コマンドを作成するステップと、
    　前記ファームウェア情報コマンドを前記シンク機器へ送信するステップと、
    　前記シンク機器において、
    　前記ファームウェア情報コマンドを前記ソース機器から受信するステップと、
    　受信された前記ファームウェア情報コマンドに従って、前記ソース機器用の新しいファームウェアを取得するステップと、
    　取得された前記新しいファームウェアを、前記シンク機器に設けられかつ内容が前記ソース機器から参照可能なＥＤＩＤ格納部に格納するステップと、
    　前記新しいファームウェアが前記ＥＤＩＤ格納部に格納されたことを示すファームウェア準備完了コマンドを前記ソース機器へ送信するステップと、
    　前記ソース機器において、
    　前記ファームウェア準備完了コマンドを受信するステップと、
    　前記ファームウェア準備完了コマンドが受信されると、前記シンク機器から前記新しいファームウェアを参照するステップと、
    　前記参照された前記新しいファームウェアで前記ソース機器のファームウェアをアップデートするステップと
    　を含むアップデート方法。     In an AV system configured by connecting a sink device and a source device with an HDMI cable, the firmware of the source device is updated from the sink device,
    In the source device,
    Creating a firmware information command including information for identifying new firmware for the source device;
    Transmitting the firmware information command to the sink device;
    In the sink device,
    Receiving the firmware information command from the source device;
    Obtaining new firmware for the source device according to the received firmware information command;
    Storing the acquired new firmware in an EDID storage unit provided in the sink device and whose contents can be referred to from the source device;
    Transmitting a firmware preparation completion command indicating that the new firmware is stored in the EDID storage unit to the source device;
    In the source device,
    Receiving the firmware ready command;
    When the firmware ready command is received, referring to the new firmware from the sink device;
    Updating the source device firmware with the referenced new firmware.
  10. 　シンク機器とソース機器とをＨＤＭＩケーブルで接続して構成されたＡＶシステムにおいて、前記ソース機器から前記シンク機器のファームウェアをアップデートする方法であって、
    　前記シンク機器において、
    　前記シンク機器用の新しいファームウェアを特定するための情報を含むファームウェア情報コマンドを作成するステップと、
    　前記ファームウェア情報コマンドを前記ソース機器へ送信するステップと、
    　前記ソース機器において、
    　前記ファームウェア情報コマンドを、前記シンク機器から受信するステップと、
    　受信された前記ファームウェア情報コマンドに従って、前記シンク機器用の新しいファームウェアを取得するステップと、
    　取得された前記新しいファームウェアを、前記シンク機器に設けられかつ内容が前記ソース機器から更新可能なＥＤＩＤ格納部に格納するステップと、
    　前記ＥＤＩＤ格納部に格納されるべき前記新しいファームウェアを送信し終わったことを示すファームウェア準備完了コマンドを前記シンク機器へ送信するステップと、
    　前記シンク機器において、
    　前記ファームウェア準備完了コマンドが受信されると、前記ＥＤＩＤ格納部に格納された前記新しいファームウェアで前記シンク機器のファームウェアをアップデートするステップと
    　を含むアップデート方法。     In an AV system configured by connecting a sink device and a source device with an HDMI cable, the firmware of the sink device is updated from the source device,
    In the sink device,
    Creating a firmware information command including information for identifying new firmware for the sink device;
    Transmitting the firmware information command to the source device;
    In the source device,
    Receiving the firmware information command from the sink device;
    Obtaining new firmware for the sink device according to the received firmware information command;
    Storing the acquired new firmware in an EDID storage unit provided in the sink device and whose contents can be updated from the source device;
    Transmitting a firmware preparation completion command indicating that transmission of the new firmware to be stored in the EDID storage unit to the sink device is completed;
    In the sink device,
    Updating the firmware of the sink device with the new firmware stored in the EDID storage unit when the firmware preparation completion command is received.
PCT/JP2010/004557 2009-07-31 2010-07-14 Source device, synchronization device, av system, and update method WO2011013312A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007274375A (en) * 2006-03-31 2007-10-18 Onkyo Corp Av system, source apparatus, and receiving apparatus
JP2008165698A (en) * 2007-01-05 2008-07-17 Funai Electric Co Ltd Information update system and reproduction device
JP2008236031A (en) * 2007-03-16 2008-10-02 Sharp Corp Broadcast wave download system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007274375A (en) * 2006-03-31 2007-10-18 Onkyo Corp Av system, source apparatus, and receiving apparatus
JP2008165698A (en) * 2007-01-05 2008-07-17 Funai Electric Co Ltd Information update system and reproduction device
JP2008236031A (en) * 2007-03-16 2008-10-02 Sharp Corp Broadcast wave download system

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