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:
Feb. 22, 2005
Filed:
Sep. 27, 2002
Applicants:
John T. Phan, Williston, VT (US);
Michael Armand Roberge, Milton, VT (US);
Inventors:
John T. Phan, Williston, VT (US);
Michael Armand Roberge, Milton, VT (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11C008/00 ;
U.S. Cl.
CPC ...
Abstract
Disclosed herein are a method and structure, in an integrated circuit having at least one delay locked loop circuit (DLL), for determining a Lock Latency value of a DLL output clock signal. The disclosed method includes temporarily disabling a first clock signal in response to the DLL doing at least one of approaching and acquiring lock; and then thereafter determining a Lock Latency value in response to examining a DLL output clock signal generated in response to the first clock signal.