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. 24, 2009
Filed:
Nov. 01, 2005
Applicant:
Takao Inoue, Kawagoe, JP;
Inventor:
Takao Inoue, Kawagoe, JP;
Assignee:
Pioneer Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/217 (2006.01); H03F 3/191 (2006.01);
U.S. Cl.
CPC ...
Abstract
A digital amplifying apparatus includes a positive-phase amplifier, an inverting amplifier, a pair of LPFs, a positive and a negative noise component extracting unit, and noise component coupling units that couple a negative and a positive noise component extracted by the negative and the positive noise component extracting units with a positive and a negative PWM signals.