Patent ID: 9462285
Filing Date: 2016-10-04
CPC Classification: H04N

Claim Text:
1. An encoder comprising: an input port that receives a video stream comprising a plurality of video frames to be encoded; a first compression sub-system that generates a plurality of compressed reference frames using a first lossy compression algorithm, each compressed reference frame being generated from a corresponding one of said plurality of video frames without reference to any previously encoded video frames, said compressed reference frames being communicated to said remote device; an output stage that communicates said compressed reference frames to a device that is remote from said encoder; a reference frame storage sub-system that stores one of said compressed reference frames in a compressed format for use in compressing a subsequent video frame in said video stream, said compressed reference frame being compressed using a second lossy compression algorithm; and a second compression sub-system that encodes a second plurality of said video frames using said compressed reference frame stored in said reference frame storage sub-system as a reference without updating said compressed reference frame, said second compression sub-system generating a compressed video frame from each of said second plurality of said video frames, said encoded second plurality of said video frames being communicated to said remote device, wherein said second lossy compression algorithm is said first lossy compression algorithm.