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. 22, 2014
Filed:
Jan. 28, 2009
Applicants:
Ted Lee, San Lorenzo, CA (US);
Alireza S. Kaviani, San Jose, CA (US);
Inventors:
Ted Lee, San Lorenzo, CA (US);
Alireza S. Kaviani, San Jose, CA (US);
Assignee:
Xilinx, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An integrated circuit for providing digital frequency synthesis is disclosed. For example, the integrated circuit comprises a phase detector for receiving a reference clock signal and an oscillator clock signal, wherein the phase detector outputs an error signal. The integrated circuit further comprises a synthesizer control block, coupled to the phase detector, for receiving the error signal to generate a delay select signal, wherein the synthesizer control block comprises an integral adjustment filter and a proportional adjustment filter.