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Adaptive forward error correction system

  • US 5,600,663 A
  • Filed: 11/16/1994
  • Issued: 02/04/1997
  • Est. Priority Date: 11/16/1994
  • Status: Expired due to Term
First Claim
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1. A forward error correction system comprisinga first device which a) processes a number (N) bytes within each of a plurality of original packets to form a respective forward error correction code of M bytes, b) processes a number (P) of the original packets to form Q additional error correction packets each associated with respective forward error corrections code, and c) transmits said P original packets and said Q additional forward error correction packets as a stream of data as well as their respective forward error correction codes;

  • anda second device which receives the data stream and which a) processes the data stream to correct errors in a received corrupted packet as a function of the respective forward error correction code;

    b) responsive to errors which cannot be so corrected, processes such errors as a function of the Q additional forward error correction packets to correct said error; and

    c) responsive to failing to correct such errors, returns a message indicative of said failure and includes in the message a request to expand said forward error correction processing at said first device.

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