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:
Oct. 05, 1999
Filed:
May. 02, 1997
Applicant:
Inventors:
Glenn M Romano, Greensboro, NC (US);
Craig R Consiglio, Manorville, NY (US);
Edward G Tracey, East Northport, NY (US);
Assignee:
AIL Systems, Inc., Deer Park, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
375373 ; 375375 ; 36471802 ; 327106 ;
Abstract
A chirp direct digital synthesizer is formed with a phase and frequency tracker circuit to provide both enhanced resolution and reduced power consumption. The phase and frequency tracker circuit operates at a sub-synchronous clock rate and provides periodic phase and frequency correction data to the direct digital synthesizer. The phase and frequency tracker circuit is suitable for both continuous wave and chirp direct digital synthesizer operation.