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. 21, 2008
Filed:
Nov. 22, 2004
Applicant:
Tatsushi Katayama, Kanagawa, JP;
Inventor:
Tatsushi Katayama, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/41 (2006.01);
U.S. Cl.
CPC ...
Abstract
An information reproduction apparatus using maximum likelihood decoding for calculating likelihood of a value of a reproducing signal to a plurality of reference values, the reproducing signal obtained from a recording medium, to decode the reproducing signal on the basis of the likelihood, the apparatus includes a circuit for detecting the reproducing signal from the recording medium, a circuit for detecting the reference values corresponding to a characteristic of the reproducing signal, and a correction circuit for correcting the reproducing signal or the calculated likelihood according to the detected reference values.