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Forward error correction system for packet based real time media

  • US 6,487,690 B1
  • Filed: 11/06/2000
  • Issued: 11/26/2002
  • Est. Priority Date: 12/12/1997
  • Status: Expired due to Fees
First Claim
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1. A method of encoding a sequence of payload blocks in a telecommunications network to enable recovery of lost payload blocks, wherein said payload blocks cooperatively represent a real-time media signal selected from the group consisting of audio and video, said method comprising, in combination:

  • deriving p redundancy blocks from each sequential group of k of said payload blocks; and

    combining each of said p redundancy blocks, respectively, with a payload block in a subsequent sequential group of k of said payload blocks, wherein any given payload block is combined with at most one redundancy block.

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