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. 02, 2008
Filed:
Sep. 30, 2004
Applicants:
Thomas L. Gradishar, Boynton Beach, FL (US);
Robert E. Stengel, Pompano Beach, FL (US);
Inventors:
Thomas L. Gradishar, Boynton Beach, FL (US);
Robert E. Stengel, Pompano Beach, FL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A direct digital synthesizer (DDS) () that uses a system for reducing spurious emissions in a digital-to-time converter (DTC) (). The DDS () includes one or more dither sources () and a random access memory (RAM) (). The RAM () utilizes a look-up table for storing delay error values by using an output of the look-up table which is combined with the dither source () to compensate unequal unit delay values in the DTC ().