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:
Nov. 19, 2002
Filed:
Sep. 01, 1999
Paul Lai, San Jose, CA (US);
Shirish Altekar, Los Gatos, CA (US);
Kwok Wah Yeung, Milpitas, CA (US);
LSI Logic Corporation, Milpitas, CA (US);
Abstract
Structure and methods for reduced latency in calculating an error signal based on the output of a Viterbi detector. Certain partial terms of the error signal are precomputed before the final output of the Viterbi detector is determined. The precomputed terms are used to determine the error in fewer clock cycles once the Viterbi output is fully determined. In one exemplary embodiment, the final Viterbi output is used as an input to a multiplexer that selects a precomputed error. In addition to calculating an error signal, a level signal may be precomputed as well so that the level signal is available more quickly after the output of the Viterbi detector is fully determined.