Patent ID: 8098690

Claim:
A system for transferring high definition multimedia signals over a cable having four channels, comprising: a multimedia source for transmitting multimedia data and source-to-sink management data to a multimedia sink over a first channel, a second channel and a third channel, wherein a transfer rate of the multimedia data is higher than a transfer rate of the source-to-sink management data, the multimedia source includes at least one source multiplexer for, generating the source-to-sink management data by multiplexing a display data channel (DDC) signal and a consumer electronics control (CEC) signal to be transmitted together over a single channel, wherein the single channel is any one of the first channel, the second channel, and the third channel, and wherein the multimedia source is further capable of transmitting a clock signal to the multimedia sink over a fourth channel; and the multimedia sink for transferring sink-to-source management data to the multimedia source over the fourth channel, wherein a transfer rate of the clock signal is higher than a transfer rate of the sink-to-source management data, the multimedia sink includes a sink multiplexer for generating the sink-to-source management data by multiplexing a DDC signal, a CEC signal, and a hot plug detect (HPD) signal to be transmitted together over the fourth channel, and wherein the sink-to-source management data and the clock signal are simultaneously transferred over the fourth channel, thereby transferring the high definition multimedia signals including the multimedia data, the source-to-sink management data, the sink-to-source management data, and the clock signal over the cable.