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    ELECTRONIC DEVICE AND CONTROL SIGNAL TRANSMISSION METHOD FOR ELECTRONIC DEVICE
    2.
    发明公开
    ELECTRONIC DEVICE AND CONTROL SIGNAL TRANSMISSION METHOD FOR ELECTRONIC DEVICE 审中-公开

    公开(公告)号：EP4138387A1

    公开(公告)日：2023-02-22

    申请号：EP22201876.4

    申请日：2009-03-30

    申请人： Sony Group Corporation

    发明人： YOSHIDA, Kikutada ,  SATO, Tatsuya

    IPC分类号： H04N7/173 ,  H04N5/44 ,  H04Q9/00 ,  G08C23/04 ,  H04N5/775 ,  H04N21/41 ,  H04N21/422 ,  H04N21/4363

    摘要： An information processing method for use in a receiver, the receiver unidirectionally receiving, from a transmitter using a first differential signal, pixel data of an uncompressed image of one screen during an effective video period representing a period from one vertical synchronization signal to the next vertical synchronization signal excluding horizontal blanking intervals and a vertical blanking interval, the method comprising the steps of:
    - receiving by Report Physical Address of CEC control protocol, from the transmitter, a notification indicating that the physical address of the transmitter designates a CEC-compliant device having a specified logical address, said specified logical address being indicative of a device type of the transmitter;
    - transmitting by a LAN sending circuit of said receiver, to the transmitter, a second differential signal representing transmission data different from the pixel data via differential transmission lines formed from a pair consisting of the reserved line and the hot plug detect line of an HDMI cable;
    - receiving, by a LAN signal receiving unit of the receiver), connected to the LAN sending circuit, an added signal comprising said second differential signal added to a third differential signal transmitted from the transmitter via the reserved line and the HPD line of the HDMI cable; and
    - subtracting, by a subtracting circuit of the receiver, said transmission data represented by the second differential signal from the signal received by the LAN signal receiving unit.