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. 19, 2012
Filed:
May. 27, 2009
Marcel J. M. Pelgrom, Helmond, NL;
Hendricus Joseph Maria Veendrick, Heeze, NL;
Victor Zieren, Valkenswaard, NL;
Marcel J. M. Pelgrom, Helmond, NL;
Hendricus Joseph Maria Veendrick, Heeze, NL;
Victor Zieren, Valkenswaard, NL;
NXP B.V., Eindhoven, NL;
Abstract
A sensor () for sensing jitter in a clock signal has a DLL () for locking a clock signal and a delayed version of the clock signal. The sensor comprises a delay line () having a first number of cascaded controllable delay segments. The DLL uses a second number of the cascaded delay segments for generating a delay of an average clock period of the clock signal. The second number is smaller than the first number. The sensor also has a comparator () for supplying a sensor output signal representative of a comparison of the clock signal and a further delayed version of the clock signal. The further delayed version of the clock signal is obtained from an output of a specific one of the delay segments located in the delay line after the second number of cascaded delay segments.