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:
Mar. 09, 2010
Filed:
Oct. 06, 2006
Tomohiro Yui, Kanagawa, JP;
Nobuhiro Takagi, Kanagawa, JP;
Gou Kaise, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A dynamic DC offset removal apparatus and a dynamic DC offset removal method capable of accurately estimating a change position of a dynamic DC offset and a DC offset value before the change and a DC offset value after the change, thereby carrying out equalization processing on a reception signal whose dynamic DC offsets are removed, and improving a bit error rate characteristic. In receiverhaving a dynamic DC offset removal apparatus, dynamic DC offset detection sectioncalculates a DC offset value before the change and a DC offset value after the change, and DC offset change timing from the maximum value and minimum value calculated at maximum value search sectionand minimum value search sectionand the first-half mean value, second-half mean value and overall mean value calculated at first-half mean value calculation section, second-half mean value calculation sectionand overall mean value calculation section, and compensation DC offset switching sectionof DC offset removal sectionswitches between the DC offset value before the change and DC offset value after the change based on the DC offset change timing and removes dynamic DC offsets from the reception signal.