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:
Apr. 02, 2002
Filed:
Dec. 23, 1999
Applicant:
Inventors:
Kamal Dalmia, Austin, TX (US);
Anil Agarwal, Bangalore, IN;
Assignee:
Cypress Semiconductor Corp., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 2/500 ; H03D 1/300 ;
U.S. Cl.
CPC ...
G01R 2/500 ; H03D 1/300 ;
Abstract
A circuit comprising a first circuit and a state machine. The first circuit may be configured to generate a plurality of state inputs in response to (i) a first clock signal, (ii) a second clock signal delayed from the first clock signal, and (iii) a data signal. The state machine may be configured to generate a pump up signal and a pump down signal in response to (i) said data signal and (ii) a plurality of quadrants defined by a number of possible combinations of the state inputs. The state machine may be further configured to transition between any of the quadrants.