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:
Jul. 06, 1999
Filed:
Mar. 27, 1997
Applicant:
Inventors:
Michael B Anderson, Colorado Springs, CO (US);
Gregory A Tabor, Colorado Springs, CO (US);
Assignee:
LSI Logic Corporation, Milpitas, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ; H03K / ;
U.S. Cl.
CPC ...
327116 ; 327105 ; 327113 ; 327114 ; 327261 ; 327269 ; 327294 ; 327299 ;
Abstract
A fully digital clock multiplier capable of generating any N/M multiple of an input clock frequency with a precise duty cycle is provided. The input clock signal is divided by M to create a divided clock signal. The propagation of the input clock signal along a delay cell string during a half cycle of the divided clock signal is then measured. The measured propagation is then scaled by a factor N to select an appropriate delay cell string length within a ring oscillator for generating an output signal.