Patent ID: 8984578
Filing Date: 2015-03-17
Classification: G06F,G09G,H04N

Abstract:
1. A transmitting apparatus comprising: a signal transmitting unit that transmits a video signal to a receiving apparatus over a cable in the form of differential signals on a plurality of channels; a control unit that transmits request information, which requests feed of power, to the receiving apparatus over the cable; a power supply switching unit that feeds power, which is fed from the receiving apparatus over the cable, to internal circuits along with the transmission of the request information from the control unit; and a power feeding unit that, in one state, feeds power, which is fed from the receiving apparatus over a first line included in the cable, simultaneously (i) to the internal circuits and (ii) via a connection switch of the transmitting apparatus which selectively connects the first line with a second line included in the cable under control of the control unit, to the receiving apparatus over the second line, the first line being coupled to a first circuit of the receiving apparatus and the second line being coupled to the first circuit through a second circuit of the receiving apparatus.