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:
Aug. 06, 2002
Filed:
Sep. 19, 2000
Applicant:
Inventor:
Michael W. Determan, Brighton, MA (US);
Assignee:
Apogee Technology Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 7/08 ; H04L 2/503 ; H03F 3/38 ;
U.S. Cl.
CPC ...
H03K 7/08 ; H04L 2/503 ; H03F 3/38 ;
Abstract
A system and method for reducing distortion in a pulse width modulated digital system by selectively implementing linearization. The linearization is implemented computationally efficient, using no division operations. A frequency detector is implemented which causes signals to bypass the linearization algorithm at frequencies where the new modes of distortion become significant as a result of the linearization when used in combination with an interpolation filter.