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:
Jun. 25, 2002
Filed:
Dec. 06, 2000
Applicant:
Inventors:
Saeed Abbasi, Wynnewood, PA (US);
Martin E. Perrigo, Newtown, PA (US);
Assignee:
ATI International, SRL, , BB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L 7/06 ;
U.S. Cl.
CPC ...
H03L 7/06 ;
Abstract
A delay lock loop (DLL) circuit for generating a precisely delayed output signal relative to an input signal. The DLL circuit includes a phase detector for detecting a phase difference between the input signal and the DLL output signal, a lock circuit for detecting when the difference between the input signal and the output signal is zero, and a delay element control circuit for increasing and decreasing the phase of the output signal. This circuit design reduces processing delay, improves jitter performance, and extends the DLL operating frequency range.