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. 02, 2004
Filed:
Apr. 22, 2003
Nihal Godambe, Plantation, FL (US);
Walt Kehler, Sunrise, FL (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A rectifier ( ) rectifies ( ) an output signal of a VCO ( ) to produce an envelope signal proportional to an amplitude of the output signal. An integrator ( ) integrates ( ) the envelope signal to produce a comparison signal, such that, in response to a change in the envelope signal, during a first mode of operation of the VCO, the comparison signal is allowed to change at a first rate, and, during a second mode of operation of the VCO, the comparison signal is allowed to change at a second rate different from the first rate. A comparator ( ) compares ( ) the comparison signal with a reference signal ( ) to produce a bias signal, and controls ( ) a gain of the VCO with the bias signal.