Patent ID: 11936927
Assignee: REALTEK SEMICONDUCTOR CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A receiver control circuit, suitable for a multimedia signal transmission control system, wherein the receiver control circuit is configured to be coupled to a transmitter control circuit, the transmitter control circuit is configured to pack, in an active video period of a video frame, a control signal and a video signal into a plurality of first hybrid data packets, and configured to pack, in a vertical front porch and a vertical back porch of the video frame, the control signal and an audio signal into a plurality of second hybrid data packets, wherein the active video period is between and adjacent to the vertical front porch and the vertical back porch,
wherein the receiver control circuit is configured to receive the plurality of first hybrid data packets in the active video period, and configured to receive the plurality of second hybrid data packets in the vertical front porch and the vertical back porch, wherein the receiver control circuit is configured to unpack the plurality of first hybrid data packets and the plurality of second hybrid data packets to provide the control signal, the video signal and the audio signal to a display module,
wherein the receiver control circuit comprises:
a signal combination circuit, comprising a first input terminal and a second input terminal; and
a receiver interface circuit, coupled to the transmitter control circuit, the first input terminal and the second input terminal, configured to unpack the plurality of first hybrid data packets and the plurality of second hybrid data packets to generate a first input signal and a second input signal, respectively, and configured to provide the first input signal and the second input signal to the first input terminal and the second input terminal, respectively,

wherein the signal combination circuit provides the first input signal as the control signal to the display module in the active video period, and the signal combination circuit provides the second input signal as the control signal to the display module in the vertical front porch and the vertical back porch.