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:
Sep. 17, 2019
Filed:
Feb. 27, 2017
Xilinx, Inc., San Jose, CA (US);
Paolo Novellini, Gorgonzola, IT;
Antonello Di Fresco, Abbiategrassso, IT;
XILINX, INC., San Jose, CA (US);
Abstract
An example circuit includes: a transmitter configured to transmit a clock pattern based on a transmit clock; a receiver, coupled to the transmitter, configured to sample the clock pattern based on a receive clock to generate a bit pattern, where there is a non-zero frequency difference between the transmit clock and the receive clock; a phase interpolator (PI) configured to add a phase shift to a source clock to supply one of the transmit clock or the receive clock; and a test circuit configured to apply adjustments to the phase shift over a time period and determine a phase distribution of the PI based on changes in the bit pattern over the time period.