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. 06, 2001
Filed:
Nov. 30, 1998
Applicant:
Inventors:
Hiroshi Kubo, Tokyo, JP;
Keishi Murakami, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/706 ;
U.S. Cl.
CPC ...
H01L 2/706 ;
Abstract
The prior art method of estimating a sequence by making use of a Viterbi algorithm is modified as follows: (1) A path at a certain past instant is modified to derive a modified path. (2) The path metric value of the modified path is calculated. (3) The path metric of a normal path and the path metric of the modified path are compared. If the path metric of the modified path is smaller, the path is modified. (4) A surviving path is selected from plural paths passing through the modified path.