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:
Dec. 07, 2010
Filed:
Jul. 26, 2007
Kinichi Higure, Kodaira, JP;
Hideki Aridome, Kodaira, JP;
Kinichi Higure, Kodaira, JP;
Hideki Aridome, Kodaira, JP;
Hitachi Kokusai Electric, Inc., Tokyo, JP;
Abstract
Forward and backward equalization processes are effectively used in a communication system for equalizing a received signal of a frame including a known symbol part. The known symbol part is provided in a position other than both ends of the frame. An equalization filter unit acquires a signal of an equalization process result by performing an equalization filter process based on a signal serving as an equalization process target and a tap gain coefficient. An update unit updates the tap gain coefficient using a predefined algorithm. A first or second transmission unit transmits a received signal posterior or prior to the known symbol part to a first or second memory in a forward direction or reverse order. A first or second control unit performs a forward or backward equalization filter process with the equalization filter unit by receiving memory content transmitted from the first or second transmission unit in the forward direction or reverse order and employing a total or part of the known symbol part contained in the memory content as the equalization process target.