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:
May. 15, 2007
Filed:
May. 14, 2004
Applicant:
Eiji Yamada, Tenri, JP;
Inventor:
Eiji Yamada, Tenri, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An RLL demodulator for performing RLL demodulation on primary modulation data performs hard demodulation outside an iterative decoding loop. Further, decoding in compliance with a constraint concerning a PR transfer characteristic is performed by a PR-channel APP detector which performs iterative decoding by repeatedly feeding and receiving a priori information regarding the primary modulation data to and from an APP decoder for error-correcting codes.