Data reproduction device, video display apparatus and software update system and software update method which use them
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorToru Sasabe
Life of this patent
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Abstract
An MPEG decoder IC in a DVD reproduction apparatus decodes update software read from a CD-ROM, and a transmission signal conversion IC transmits the decoded update software to a television receiver via data lines, utilizing InfoFrames in supplemental data. A microprocessor in the DVD reproduction apparatus indicates a software update to a microprocessor in the television receiver. Software for the microprocessor is stored in a memory of the television receiver. The microprocessor updates the software in the memory using the update software received by a reception signal conversion IC.
Claims14
A data reproduction apparatus for reproducing data recorded in a recording medium, and capable of being connected via an interface bus to a video display apparatus that operates according to software, comprising:
- a transmitter that transmits video data and audio data read from the recording medium, using a first area and a second area, respectively, to said video display apparatus via said interface bus;
- and
- a controller that controls said transmitter to transmit, at the time of a software update for said video display apparatus, update software read from the recording medium to said video display apparatus via said interface bus, using a third area for transmission of additional data that is different from said first and second areas, while indicating the software update to said video display apparatus.
A video display apparatus capable of being connected to a data reproduction apparatus via an interface bus, comprising:
- a receiver that receives video data and audio data transmitted by said data reproduction apparatus via said interface bus, using a first area and a second area, respectively;
- an audio output unit that outputs a sound based on the audio data received by said receiver;
- a video display unit that displays an image based on the video data received by said receiver;
- a processor that controls said video display unit and said audio output unit;
- and
- a storage that stores software for said processor, wherein
- said processor updates, upon reception of update software by said receiver that is transmitted via said interface bus using a third area for transmission of additional data that is different from said first and second areas, and indication of a software update by said data reproduction apparatus, the software stored in said storage using the update software received by said receiver.
A software updating system comprising:
- a video display apparatus that operates according to software;
- and
- a data reproduction apparatus for reproducing data recorded in a recording medium, and capable of being connected to said video display apparatus via an interface bus, wherein
- said data reproduction apparatus includes:
- a transmitter that transmits video data and audio data read from the recording medium, using a first area and a second area, respectively, to said video display apparatus via said interface bus;
- and
- a controller that controls said transmitter to transmit, at the time of a software update for said video display apparatus, update software read from the recording medium to said video display apparatus via said interface bus, using a third area for transmission of additional data that is different from said first and second areas, while indicating the software update to said video display apparatus, and wherein
- said video display apparatus comprises:
- a receiver that receives the video data and the audio data transmitted by said data reproduction apparatus via said interface bus using said first area and said second area, respectively;
- an audio output unit that outputs a sound based on the audio data received by said receiver;
- a video display unit that displays an image based on the video data received by said receiver;
- a processor that controls said video display unit and said audio output unit;
- and
- a storage that stores software for said processor, wherein
- said processor updates, upon reception of the update software by said receiver that is transmitted via said interface bus using the third area for transmission of the additional data, and indication of the software update by said data reproduction apparatus, the software stored in said storage using the update software received by said receiver.
A software updating method for updating software for a video display apparatus using a data reproduction apparatus for reproducing data recorded in a recording medium, and capable of being connected to said video display apparatus via an interface bus, comprising the steps of:
- transmitting, at the time of a software update for said video display apparatus, update software read by said data reproduction apparatus from the recording medium to said video display apparatus via said interface bus, using a third area for transmission of additional data other than a first area for transmission of video data and a second area for transmission of audio data;
- indicating the software update to said video display apparatus by said data reproduction apparatus;
- receiving by said video display apparatus, upon indication of the software update by said data reproduction apparatus to said video display apparatus, the update software transmitted via said interface bus using said third area;
- and
- updating the software for said video display apparatus using said received update software.
Dependencies are inferred from the claim text.