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:
Dec. 05, 2006

Filed:

Jul. 16, 2004
Applicants:

Declan M. Dalton, County Limerick, IE;

Lawrence M. Devito, Tewksbury, MA (US);

Mark Ferriss, County Cork, IE;

Paul J. Murray, County Limerick, IE;

Inventors:

Declan M. Dalton, County Limerick, IE;

Lawrence M. DeVito, Tewksbury, MA (US);

Mark Ferriss, County Cork, IE;

Paul J. Murray, County Limerick, IE;

Assignee:

Analog Devices, Inc., Norwood, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 13/00 (2006.01); H03L 7/89 (2006.01);
U.S. Cl.
CPC ...
Abstract

An improved coarse frequency detector includes a first storage device responsive to a data signal and a sub-multiple of a clock signal for detecting a first transition in the data signal during a predetermined state of the sub-multiple of the clock signal and generating an intermediate signal, and a second storage device responsive to the data signal and the intermediate signal for detecting a second transition in the data signal having the same polarity as the first transition during the predetermined state of the sub-multiple of the clock signal and generating an up-pulse.


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