Patent ID: 8683533
Filing Date: 2014-03-25
Classification: H04N

Abstract:
1. A video transmission system comprising: a video transmission apparatus including, a connection terminal to which a video reproduction device is connected, a wireless transmission unit for wirelessly transmitting a video signal input through the connection terminal, a quality information acquiring unit for acquiring quality information indicating wireless transmission quality of the video signal, and a reproduction control unit for controlling the video reproduction device to stop the reproduction of the video when degradation of the transmission quality is detected and to resume the reproduction of the video when the transmission quality is recovered based on the quality information acquired by the quality information acquiring unit; and a video reception device including, a wireless reception unit for receiving the video signal wirelessly transmitted from the video transmission apparatus and determining video quality of the video signal based on error information detected in time of demodulation of the video signal, a decode unit for decoding the video signal received by the wireless reception unit, a quality determination unit for determining video quality of the video signal decoded by the decode unit, and a quality information providing unit for providing the determination result of the quality determination unit as the quality information; wherein the video transmission apparatus includes a transmission quality detection unit to determine the transmission quality based on the error information detected in time of demodulation of the video signal and a result of a determination of influence of an error rate indicated by the error information detected in time of demodulation of the video signal on the video quality of after decoding at the video reception device of the video signal set to be used as a reference in the determination of the transmission quality, wherein the reference to be used in the determination of the transmission quality is changed depending on type of video data of the video signal.