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:
Aug. 08, 2000
Filed:
Jul. 28, 1999
Applicant:
Inventor:
Kamal Dalmia, Austin, TX (US);
Assignee:
Cypress Semiconductor Corp., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; H03D / ;
U.S. Cl.
CPC ...
327 12 ;
Abstract
A phase detector circuit comprising a control circuit, a pump-up circuit and a pump-down circuit. The control circuit may be configured to generate a control signal in response to (i) a data signal, (ii) a half-rate clock signal, and (iii) a quadrature of the half-rate clock signal. The pump-up circuit may be configured to generate a pump-up signal in response to (i) the data signal, and (ii) the control signal. The pump-down circuit may be configured to generate a pump-down signal in response to (i) the pump-up signal and (ii) the control signal.