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:
Feb. 13, 2001
Filed:
Sep. 27, 1999
Applicant:
Inventors:
Branko Avanic, Miami, FL (US);
John K. McKinney, Plantation, FL (US);
Frank A. Poggiali, Lauderhill, FL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/085 ; H03L 7/099 ;
U.S. Cl.
CPC ...
H03L 7/085 ; H03L 7/099 ;
Abstract
A phase noise optimization circuit (,) minimizes phase noise for a voltage controlled oscillator (VCO) (,). Control circuitry (,) locates a minimum phase noise region for VCO operation based on the slope of the VCO's changing control voltage (,) versus changing bias voltage (,) for a bias voltage range. The control circuitry (,) then adjusts the bias input so that the VCO operates in a region of minimum phase noise.