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:
Sep. 22, 2009
Filed:
May. 11, 2006
Applicant:
Tod D. Wolf, Richardson, TX (US);
Inventor:
Tod D. Wolf, Richardson, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 13/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention modifies Viterbi decoding to improve BER. Within the state metric unit cascade block, this invention forces the unused ACS units decision bits to a 0 for the top rail and a 1 for the bottom rail. This invention modifies the final maximum state index with the selected decision bits from the unused ACS units. This invention uses the modified final maximum state index as the initial conditions for the k−1 traceback shift register. This invention also uses the final maximum state index to mask the generated pretraceback decision bits generated from the last block of ACS units.