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:
May. 10, 2005
Filed:
Dec. 21, 2001
Frederick L. Martin, Plantation, FL (US);
Robert E. Stengel, Pompano Beach, FL (US);
Jui-kuo Juan, Coral Springs, FL (US);
Frederick L. Martin, Plantation, FL (US);
Robert E. Stengel, Pompano Beach, FL (US);
Jui-Kuo Juan, Coral Springs, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A digital frequency synthesizer includes one or more reference clocks (A,A,A) optionally coupled through one or more pulse width reducers () to one or more main delay lines (B,B,B) that include a plurality of output taps (B-I,B-E). During at least certain periods of the reference clock () a plurality of the output taps are coupled to a common output (), thereby producing an output signal that has a frequency that exceeds a frequency of the one or more reference clocks. The coupling is preferably accomplished by transmission gates () that are switched by gating pulses that are received from decoders () via gating signal delay lines ().