Patent ID: 6154489
Filing Date: 2000-11-28
Classification: H04L,H04N

Abstract:
Apparatus for the transmission of digital images, comprising:a source of image information in digital form;a transmitter coupled to said source for the transmission of digital image information;an image data sink for utilizing received digital image information;a receiver for receiving said digital image information and providing said received digital image information to said image data sink;a communications channel between said transmitter and said receiver for transmission of image data from said transmitter to said receiver;a feedback channel for providing quality information from said receiver to said transmitter, said information being indicative of quality of said received digital image information over said communication channel;whereby said transmitter is responsive to said quality information such that transmission parameters are varied at said transmitter to provide high quality image information at said receiver; andsaid feedback channel comprising:a channel status monitor; anda channel status estimator for instructing said channel status monitor to vary power level, baud rate, channel code rate, compression ratio and delivery rate of said transmitter for transmitting said digital image information.