Patent ID: 7321403
Filing Date: 2008-01-22
Classification: H04N

Abstract:
1. A video signal transmitting/receiving system in which a video signal region is made of an effective video region and a blanking region, the effective video region includes pixel signals, the blanking region includes control signals for display control, and the pixel signals and the control signals constitute a digital video signal, the video signal transmitting/receiving system transmitting and receiving the digital video signal via a plurality of transmission channels, the video signal transmitting/receiving system comprising: a transmitting section for transmitting the digital video signal; a receiving section for receiving the digital video signal; and a plurality of communication lines associated with the respective transmission channels and connecting the transmitting section and the receiving section to each other, wherein the transmission section includes video-guard-band-signal inserting circuits for inserting video guard band signals into the respective transmission channels immediately before transition from the blanking region to the effective video region, the receiving section includes, for each of the transmission channels, the receiving section further includes a video-guard-band-signal detector for detecting the video guard band signals inserted into the respective transmission channels by the video-guard-band-signal inserting circuits, and the video-guard-band-signal detector selects either the signal path or the delay path for each of the transmission channels, based on the detection of an associated one of the video guard band signals.