Iterative-structure digital signal reception device, and module and method therefor

  • US 6,108,388 A
  • Filed: 12/03/1997
  • Issued: 08/22/2000
  • Est. Priority Date: 02/07/1995
  • Status: Expired due to Term
First Claim
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1. Device for the reception of signals formed by a series of digital symbols corresponding to the convolutive encoding of items of source digital data characterized in that it comprises:

  • p cascade-connected detection and decoding modules M1 to Mp, p being greater than or equal to 2,each of said modules Mi including;

    inter-symbol interference correction means supplied by a symbol input Ri and delivering estimated symbols Ai,1 with weighted values;

    means for the decoding of said estimated symbols Ai,1 performing operations symmetrical to said convolutive encoding and delivering decoded symbols Ai,2 with weighted values; and

    means for the computation of an item of correction information Zi+1 from said estimated symbol Ai,1 and said decoded symbol Ai,2,said means for the correction of each of said modules Mi, except for the first module M1, taking account of at least one item of correction information Zi determined by the previous module Mi-1.

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