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:
Nov. 30, 2004
Filed:
May. 30, 2003
Applicant:
Inventors:
Walt Kehler, Sunrise, FL (US);
Nihal Godambe, Plantation, FL (US);
Assignee:
Freescale Semiconductor, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 5/26 ;
U.S. Cl.
CPC ...
H03B 5/26 ;
Abstract
A level detector ( ) and corresponding method detects ( ) whether an output signal level of a VCO ( ) is within a window bounded by minimum and maximum thresholds. When the output signal level is not within the window, a loop-control element ( ) closes ( ) an AGC loop of the VCO and controls the gain of the VCO with a gain-control signal that tracks an AGC bias signal. When the output signal level is within the window, the loop-control element opens ( ) the AGC loop and controls the gain with a fixed bias signal derived from the AGC bias signal at the time the AGC loop is opened.