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:
Feb. 11, 2014
Filed:
May. 10, 2012
Applicants:
Ram Kelkar, South Burlington, VT (US);
Faraydon Pakbaz, Milton, VT (US);
Inventors:
Ram Kelkar, South Burlington, VT (US);
Faraydon Pakbaz, Milton, VT (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An input jitter filter for a phase-locked loop and methods of use are provided. The method includes generating a masking zone around falling edges of a feedback signal. The method also includes determining that one or more outputs of a phase detector fall within the masking zone. The method further includes ignoring input clock noise when the one or more outputs of the phase detector fall within the masking zone.