Patent ID: 7627228

Claim:
A wireless video transmission system comprising a wireless video transmitting apparatus and a wireless video receiving apparatus, wherein the wireless video transmitting apparatus includes an analog video signal input portion that converts an analog video signal fed from an outside to a digital video signal, a digital video signal compression portion that compresses the digital video signal thus converted and generates a compressed signal, a synchronizing signal frequency measurement portion that measures a frequency of a synchronizing signal of the analog video signal, and a transmission portion that wirelessly transmits a signal according to a measurement result of the synchronizing signal frequency measurement portion and the compressed signal, wherein the wireless video receiving apparatus includes a reception portion that receives the signal according to the measurement result and the compressed signal, the signal and the compressed signal transmitted from the transmission portion, a digital video signal decompression portion that decompresses the compressed signal thus received into an original, uncompressed digital video signal, a first clock generation portion that can vary a frequency of a clock generated thereby within a predetermined first range, a second clock generation portion that can vary a frequency of a clock generated thereby within a second range that is different from the first range, and a selection portion that selects one of the first and second clock generation portions based on the measurement result, and wherein the digital video signal decompression portion performs decompression by using the clock generated by the clock generation portion selected by the selection portion.