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:
Jan. 20, 2015
Filed:
May. 09, 2013
Applicant:
Avago Technologies General Ip (Singapore) Pte. Ltd., Singapore, SG;
Inventors:
Barbara Jean Duffner, Fort Collins, CO (US);
David Linam, Fort Collins, CO (US);
Assignee:
Avago Technologies General IP (Singapore) Pte. Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 (2006.01); G11C 8/18 (2006.01); G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
G11C 8/18 (2013.01); G11C 7/00 (2013.01);
Abstract
A write leveling calibration system and method for double data-rate dynamic random access memory includes performing write leveling at two different frequencies to determine to which of two successive rising clock cycle edges each data strobe signal would be aligned as a result of applying the write leveling delay determined by the write-leveling procedure. The determination can then be used to ensure that the data strobe signals of all source synchronous groups are aligned with the same edge of the clock signal.