Patent ID: 6216267
Filing Date: 2001-04-10
Classification: G06N,H04N

Abstract:
A system for capturing and processing video and audio for optimized transmission over a lower bandwidth communications channel, comprising: a digital processing system for receiving a video signal and an audio signal froma media source, the video signal being representative of an image captured by the media source and the audio signal being representative of sounds captured by the media source;an optical processing system, coupled to said digital processing system, for performing a signal processing algorithm on the video signal and a for performing a signal processing algorithm on the audio signal; anda transceiver for transmitting the video and audio signals over a lower bandwidth communications channel as a multimedia signal, wherein the signal processing algorithms performed by said optical processing system optimize the video and audio signals for transmission over the lower bandwidth communications channel;said optical processing system comprising first and second spatial light modulators, said first spatial light modulator encoding audio signals onto a first light beam and said second spatial light modulator encoding video signals onto a second light beam, a lens system for focusing the first and second light beams through a photorefractive crystal, said photorefractive crystal being actuated with a control light beam such that a holographic output is provide by said photorefractive crystal, and a detector for detecting the holographic output of said photorefractive crystal and providing an output in response thereto, the output of said detector being representative of a signal processing routine performed on the video or audio signals by said optical processing system.