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:
Nov. 10, 2015
Filed:
Sep. 06, 2013
Applicant:
Synopsys, Inc., Mountain View, CA (US);
Inventors:
Skye Wolfer, Hillsboro, OR (US);
David A. Yokoyama-Martin, Portland, OR (US);
Assignee:
Synopsys, Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 21/02 (2006.01); H03K 23/66 (2006.01); H03K 23/68 (2006.01);
U.S. Cl.
CPC ...
H03K 21/023 (2013.01); H03K 23/662 (2013.01); H03K 23/68 (2013.01);
Abstract
A digital circuit that divides a high speed digital clock by a fractional value is described. The circuit utilizes a divider circuit and shifts the divider clock by a fraction of a phase to achieve the desired fractional division. A clock mux is used to perform the clock shift, and a masking mux is used to eliminate glitches during the clock shift.