WO2011013312A1 - Dispositif source, dispositif de synchronisation, système av et procédé de mise à jour - Google Patents

Dispositif source, dispositif de synchronisation, système av et procédé de mise à jour 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
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English (en)
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/fr

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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 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
    • 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.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Stored Programmes (AREA)

Abstract

Un dispositif de synchronisation (201) comprend une unité de stockage EDID (203) dont un contenu peut être référencé par rapport à un dispositif source (101) ; une unité de réception (206) qui reçoit une commande d’information de microprogramme (FW) afin de spécifier un nouveau microprogramme du dispositif source (101) à partir du dispositif source (101) ; une unité d’acquisition de microprogramme (FW) (209) qui acquiert le nouveau microprogramme selon la commande d’information de microprogramme (FW) reçue ; une seconde unité de transmission (207) qui stocke le nouveau microprogramme acquis dans l’unité de stockage EDID (203) ; et une première unité de transmission (205) qui signale au dispositif source (101) que le nouveau microprogramme a été stocké dans l’unité de stockage EDID (203) ; le dispositif source (101) mettant à jour le microprogramme en référence à l’unité de stockage EDID (203).
PCT/JP2010/004557 2009-07-31 2010-07-14 Dispositif source, dispositif de synchronisation, système av et procédé de mise à jour WO2011013312A1 (fr)

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JP2009178700A JP2011035588A (ja) 2009-07-31 2009-07-31 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
JP2009-178700 2009-07-31

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