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:
Aug. 04, 2009
Filed:
Mar. 07, 2006
John Ciccone, Scottsdale, AZ (US);
Richard Taylor, Phoenix, AZ (US);
Thomas W. Ciccone, Tempe, AZ (US);
John Ciccone, Scottsdale, AZ (US);
Richard Taylor, Phoenix, AZ (US);
Thomas W. Ciccone, Tempe, AZ (US);
Marvell International Ltd., Hamilton, BM;
Abstract
A numerically controlled oscillator (NCO) is arranged to accumulate control values for each transition of a system clock to provide an accumulation signal and an edge signal. A speed multiplier value (N) is selected to simulate a desired clock resolution of N times the system clock resolution. The multi-phase predictive clock circuit is arranged to provide clock phase output signals that each correspond to a predicted clock phase as if the system clock where running at N times faster than the actual system clock. The edge detector circuit is arranged to compare values of adjacent clock phases to identify a transition in one of the clock phases. The phase encoder circuit is arranged to provide a phase signal that indicates a transition in one clock phase. The edge signal and the phase signal can be used for careful phase alignment control at effectively higher resolution.