Patent ID: 8958486
Filing Date: 2015-02-17
Classification: H04L,H04N

Abstract:
1. A method comprising: receiving a primary stream of encoded frames and a separate stream of redundant frames, wherein the separate stream of redundant frames comprises only reference frames redundant of frames in the primary stream, wherein the reference frames are selected based on a combination of: 1) a minimum number of other frames depending on the reference frame in relation to other reference frames, 2) a level of information propagation via indirect dependence, and 3) a longevity of the information propagation; decoding and reconstructing in parallel the frames in the primary stream and the separate stream of redundant frames, on a real-time basis, in accordance with a specified common clock reference; and upon determining that a frame in the primary stream exhibits an error or impairment, determining a decoded redundant frame in the separate stream that corresponds to the impaired frame, and substituting at least a portion of the information in the decoded redundant frame for a corresponding decoded version of the impaired frame.