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:
Jun. 25, 2013
Filed:
Jun. 14, 2011
Applicant:
Zhihong Luo, Singapore, SG;
Inventor:
Zhihong Luo, Singapore, SG;
Assignee:
Globalfoundries Singapore Pte. Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A phase locked loop control system includes a digital controlled oscillator (DCO) that is controlled by logic cells in response to comparison of the oscillator output with a reference clock related signal. Delay cell number adjustment, delay cell load adjustment and cycle control are operative to digitally control the DCO frequency to obtain wide frequency range and limited jitter.