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:
Mar. 01, 2005
Filed:
Jul. 19, 2002
Pradeep Trivedi, Sunnyvale, CA (US);
Sudhakar Bobba, Sunnyvale, CA (US);
Claude Gauthier, Fremont, CA (US);
Pradeep Trivedi, Sunnyvale, CA (US);
Sudhakar Bobba, Sunnyvale, CA (US);
Claude Gauthier, Fremont, CA (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
A phase locked loop design uses a diode operatively connected to a loop filter capacitor to control a leakage current of the loop filter capacitor. By positioning a diode in series with the loop filter capacitor, a voltage potential across the loop filter capacitor is reduced, thereby reducing the leakage current of the loop filter capacitor. Moreover, the leakage current of the loop filter capacitor is controlled in that it cannot exceed the current through the diode. Control and reduction of the loop filter capacitor leakage current leads to more reliable and stable phase locked loop behavior.