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. 13, 2012
Filed:
Sep. 08, 2009
Chris Karabatsos, Kingston, NY (US);
Chris Karabatsos, Kingston, NY (US);
Urenschi Assets Limited Liability Company, Dover, DE (US);
Abstract
A digital apparatus for phase aligning output signals of a silicon device to an applied input clock signal in same device allows synchronization of data transfers between the device and another device such as a controller. It includes a digital or analog oscillator of higher frequencies than the applied clock and in multiples of powers 2where n=1, 2, 4, etc., with provisions for synchronization and control by the applied input clock. The main oscillator frequency is subdivided to lower frequencies. An internally derived duplicate frequency clock is phase shifted by either 45 or 22.5 degrees. The system measure both a desired coarse delay, and a fine delay to be applied to the path to phase align the output signal to the phase of the applied input clock.