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. 25, 2006
Filed:
Feb. 20, 2004
Applicants:
Weixin Gai, San Jose, CA (US);
Yasuo Hidaka, Santa Clara, CA (US);
Inventors:
Weixin Gai, San Jose, CA (US);
Yasuo Hidaka, Santa Clara, CA (US);
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for correcting DC offsets in a multi-stage amplifier includes determining a DC offset imparted by a multi-stage amplifier to an input signal. The method further includes applying a correction voltage to a plurality of selected stages in the multi-stage amplifier. The total correction voltage applied substantially negates the DC offset imparted by the multi-stage amplifier.