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:
Oct. 13, 2009
Filed:
Jul. 10, 2008
Applicants:
Stanley Wang, Cupertino, CA (US);
Bendik Kleveland, Santa Clara, CA (US);
Thomas H. Lee, Burlingame, CA (US);
Inventors:
Stanley Wang, Cupertino, CA (US);
Bendik Kleveland, Santa Clara, CA (US);
Thomas H. Lee, Burlingame, CA (US);
Assignee:
ZeroG Wireless, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A calibration circuit () and method () for calibrating the bias current of a VCO () to minimize phase noise. The calibration circuit () monitors the average voltage at the common-mode node of the VCO () while varying the bias current over a predetermined range. The calibration circuit () identifies the bias current associated with the minimum average common-mode voltage and utilizes this bias current for calibrating the biasing transistor of the VCO ().