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:
Feb. 18, 2014
Filed:
May. 16, 2011
Adam Burns, Oakville, CA;
Dino Anthony Toffolon, Stoney Creek, CA;
Adam Burns, Oakville, CA;
Dino Anthony Toffolon, Stoney Creek, CA;
Synopsys, Inc., Mountain View, CA (US);
Abstract
Circuits and systems for generating multiple frequencies are disclosed. In some embodiments, a circuit can include a first node, a second node, and a programmable phase rotator. The first node can receive a first signal having frequency f, and the second node can output a second signal having frequency fthat is different from f. In some embodiments, a frequency divider can generate a third signal having frequency fbased on the second signal. In some embodiments, a frequency divider can generate the first signal based on a reference signal having frequency f. The programmable phase rotator can be capable of updating, at an update frequency that is substantially equal to fand/or f, a phase difference between the first signal and the second signal. In some embodiments, the circuit can be part of a USB (Universal Serial Bus) 3.0 physical layer (PHY) circuit.