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:
Apr. 19, 2016
Filed:
Feb. 13, 2014
Keysight Technologies, Inc., Minneapolis, MN (US);
John H. Guilford, Stanwood, WA (US);
Gidget A. Cathcart, Fort Collins, CO (US);
Steven Joseph Narciso, Loveland, CO (US);
Keysight Technologies, Inc., Santa Rosa, CA (US);
Abstract
An apparatus for phase alignment of clock signals includes a sampling circuit that samples a first clock signal on edges of a reference clock signal and that samples the reference clock signal on edges of the first clock signal, to generate a phase signal indicative of relative phase between the first clock signal and the reference clock signal. An alignment control circuit generates a control signal responsive to the phase signal, the control signal setting a phase shift direction for the first clock signal. A phase shifter shifts a phase of the first clock signal in the phase shift direction responsive to the control signal to align the phase of the first clock signal with a phase of the reference clock signal.