Patent ID: 6212664
Filing Date: 2001-04-03
Classification: H03M

Abstract:
A method for generating an updated path metric, the method comprising the step of:operating a detector in a single clock cycle including the following substep:adding each of first and second provisional path metric first portions with an associated branch metric first portion to produce a first provisional updated path metric first portion to produce a first provisional updated path metric first portion candidate and a second provisional updated path metric first portion candidate, respectively;selecting one of the provisional first portion updated path metric candidates to produce an updated path metric first portion candidate;combining any carry component of the selected updated path metric first portion candidate with a path metric second portion and a branch metric second portion to produce a first updated path metric second portion candidate;comparing the updated path metric second portion candidate to at least one other updated path metric second portion candidate; andselecting one of the updated path metric second portion candidates to produce an updated path metric second portion.