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. 28, 2009
Filed:
Dec. 02, 2003
Hirotaka Ochi, Saijyo, JP;
Hirotaka Ochi, Saijyo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The present invention provides an adaptive equalization circuit and adaptive equalization method that can perform signal processing on a small scale with good computation accuracy, and can improve the reproducing signal quality and improve the playability of abnormal signals. According to the present invention, an equalization target value (true target value) in the sampling frequency area is determined by the equalization target value generation means () from the signals in the resampling frequency area after phase synchronization is performed, and the tap factors of the pre-digital equalization means () can be adaptively computed from this equalization target value and the input/output signals of the pre-digital equalization means ().
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