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:
Apr. 10, 2007
Filed:
Jan. 09, 2004
Charles R. Ruelke, Margate, FL (US);
Richard S. Young, Weston, FL (US);
Charles R. Ruelke, Margate, FL (US);
Richard S. Young, Weston, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An adaptive dc compensation technique () eliminates dc error for both digital and constant envelope modulation protocols (). For analog modulation, a dc averaging technique utilizes piece-wise continuous dc averaging () that calculates discrete dc error values over a variable number of samples () and updates the dc compensation value as a fixed value for a specified sample length (). The piece-wise 'update-and-hold' technique () results in a pseudo high pass filter response with an equivalent corner. For digital modulation, a continuous high pass filter section of the receiver is enabled ().