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Detecting accurrences of redundant digital codewords

  • US 4,400,811 A
  • Filed: 04/08/1981
  • Issued: 08/23/1983
  • Est. Priority Date: 04/08/1981
  • Status: Expired due to Term
First Claim
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1. A method for detecting redundant digital codewords repeatedly transmitted over a digital transmission system, comprising determining the values of bits in corresponding bit-positions of consecutive n bit codewords and providing, in response to said values, a codeword detected signal when there are at least JM equal bit values for each of the n bit-positions of the codewords, in M consecutive codewords, where JM is a preselectable threshold less than M.

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