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:
May. 01, 2018
Filed:
Dec. 15, 2016
Xilinx, Inc., San Jose, CA (US);
Winson Lin, Daly City, CA (US);
Yu Xu, Palo Alto, CA (US);
Caleb S. Leung, San Jose, CA (US);
Alan C. Wong, San Jose, CA (US);
Christopher J. Borrelli, Los Gatos, CA (US);
Yohan Frans, Palo Alto, CA (US);
Kun-Yung Chang, Los Altos Hills, CA (US);
XILINX, INC., San Jose, CA (US);
Abstract
An example method of clock and data recovery in a receiver includes generating data samples and crossing samples of a received signal based on a data clock signal and a crossing clock signal, respectively, which are derived from a sampling clock signal; adjusting a phase of the sampling clock signal using a clock and data recovery (CDR) circuit based on the data samples and the crossing samples; adjusting relative phase between the data clock signal and the crossing clock signal from a first phase difference to a second phase difference that is less than ninety degrees; and reverting the relative phase between the data clock signal and the crossing clock signal to the first phase difference after a threshold time period.