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:
Sep. 28, 2004
Filed:
Nov. 20, 2002
Applicant:
Inventors:
King H. Kwan, Bellevue, WA (US);
Galen E. Stansell, Kirkland, WA (US);
Assignee:
Cypress Semiconductor Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/08 ;
U.S. Cl.
CPC ...
H03L 7/08 ;
Abstract
In one embodiment, a control loop in an electrical circuit includes a variable feed-forward circuit configured to determine a setting of a variable oscillator that would result in a frequency of a first signal approximating a frequency of a second signal. The setting may be used to control the variable oscillator at a time when a phase error between the first signal and the second signal is negligibly small (e.g., substantially zero), thus allowing for relatively short loop convergence time.