The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 1999
Filed:
Nov. 05, 1996
Necip Sayiner, Neshanic, NJ (US);
Emina Soljanin, Summit, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A method of decoding a sequence of samples received over a communications channel, such as a partial response channel, in which the sequence represents a length k binary bit stream encoded as a sequence of bipolar symbols comprised of q groups of L symbols, each length L group of said symbols corresponding to one of 2.sup.m subwords having a predetermined block digital sum. The decoding method makes use of the structure of the encoding method by finding, in one illustrative embodiment, for each group of L samples, the maximum likelihood path through a time varying trellis supporting the sets of subwords having predetermined block digital sums to identify said subwords; recording the state metrics and branch metrics for each path and identifying, from the metrics the maximum likelihood path, the order of concatenation of the subwords.