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.

Date of Patent:
Apr. 03, 2001

Filed:

Jun. 03, 1997
Applicant:
Inventors:

Warren S. Synder, Snohomish, WA (US);

Fred Jaccard, Woodinville, WA (US);

Assignee:

Cypress Semiconductor Corp., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/00 ;
U.S. Cl.
CPC ...
H03L 7/00 ;
Abstract

A circuit comprising an oscillator configured to provide a first output signal in response to one or more input signals. A divider circuit may be configured to receive the first output signal of the oscillator circuit and to present a signal having a second frequency at a second output. A frequency comparator circuit may receive the second output signal and an external signal having a third frequency and may present a third output signal representing control information. A processor circuit may be coupled to the oscillator circuit, the divider circuit and the comparator circuit. The processor circuit may control the frequency of oscillation of the first output.


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