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. 19, 2000
Filed:
Oct. 08, 1998
Applicant:
Inventors:
Manop Thamsirianunt, Fremont, CA (US);
Vincent S Tso, Milpitas, CA (US);
Assignee:
Exar Corporation, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
327175 ; 327176 ; 327131 ;
Abstract
A duty cycle control circuit that consumes lower power and smaller silicon area, and is less susceptible to noise or jitter. In one embodiment, the invention includes a divide-by-two circuit that is edge triggered and generates a signal at its output with half the frequency of the input signal but with a 50% duty cycle. The divide-by-two circuit is followed by a frequency restore circuit that restores the original frequency of the input signal but with its duty cycle regulated at about 50%, or any other desired level.