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:
Nov. 07, 2006
Filed:
Sep. 24, 2002
Paul Joseph Kramer, Fort Collins, CO (US);
Jered Michael Sandner, Wellington, CO (US);
Paul Joseph Kramer, Fort Collins, CO (US);
Jered Michael Sandner, Wellington, CO (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
The invention produces an output signal that maintains a substantially constant period corresponding to a clock signal. An input signal includes a period that is an integer multiple of the period of the clock signal. The timing or phase of the input signal may shift in comparison to the clock signal resulting in jitter. The invention detects and cancels the jitter by varying a delay between the input signal and the output signal. The delay corresponds to an integer multiple of the period of the clock signal such that a substantially constant period is maintained for the output signal. Alternatively, the intended period for the output signal may be adjusted to match a new period when a determination is made that a sufficient difference exists between the new period of the input signal and the intended period.