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:
Oct. 05, 2004
Filed:
Sep. 22, 2000
Applicant:
Inventor:
Hirohisa Yamaguchi, Tsukuba, JP;
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 2/706 ;
U.S. Cl.
CPC ...
H04L 2/706 ;
Abstract
A combined channel and entropy decoder is provided that achieves a significant bit-error rate improvement using likelihood values ( ) instead of conventional bits. The likelihood values are stored in a buffer ( ). A unique code-word is searched in the bit pattern or in the likelihood value. When a unique code-word is found at the identifier ( ), candidate code-words are loaded into computation units where each unit computes code-word likelihood for a given code-word bit pattern. The code-word likelihood values are compared and the selected code information is fed back to the code-word controller to proceed to the next-step decoding.