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.

Date of Patent:
Aug. 13, 2019

Filed:

May. 25, 2018
Applicant:

Xilinx, Inc., San Jose, CA (US);

Inventors:

Conrado K. Mesadri, San Jose, CA (US);

Bob W. Verbruggen, Dublin, IE;

Assignee:

XILINX, INC., San Jose, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 19/00 (2006.01); G06F 1/08 (2006.01); H03K 5/15 (2006.01); G06F 1/10 (2006.01);
U.S. Cl.
CPC ...
G06F 1/08 (2013.01); G06F 1/10 (2013.01); H03K 5/15013 (2013.01);
Abstract

A clock divider circuit receives an input clock signal having a first frequency (f) and generates an output signal having a frequency equal to f/N, where N is an odd integer. The clock divider circuit includes an edge counter to count a number of consecutive edges of the input clock signal having a first plurality, and to assert a control signal when a threshold number (N) of consecutive edges has been counted. The clock divider circuit also includes a frequency multiplier to generate an intermediate clock signal having a frequency equal to 2f/N by doubling the frequency of the control signal based at least in part on transitions of the input clock signal, and a frequency divider to generate an output clock signal having a frequency equal to f/N by halving the frequency of the intermediate clock signal.


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