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:
Jul. 14, 2009
Filed:
Feb. 06, 2006
Applicant:
Tsung-sheng Kuo, Taipei, TW;
Inventor:
Tsung-Sheng Kuo, Taipei, TW;
Assignee:
Tatung Company, Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 27/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of Virterbi decoding with a reduced butterfly operation decodes an encoded signal to reconstruct a source data signal. The method comprising the steps of: (A) receiving the encoded signal; (B) computing kernel branch metrics with the reduced butterfly operation in accordance with the encoded signal; (C) using symmetry property of the reduced butterfly operation to obtain branch metrics other than the kernel branch metrics; (D) computing path metrics for each node; (E) selecting a surviving path with the smallest path metric for each nodes.