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:
Mar. 19, 2013
Filed:
Jan. 06, 2011
Applicants:
Lydia M. DO, Raleigh, NC (US);
William M. Zevin, Raleigh, NC (US);
Inventors:
Lydia M. Do, Raleigh, NC (US);
William M. Zevin, Raleigh, NC (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
Column address strobe write latency (CWL) calibration including a method for calibrating a memory system. The method includes entering a test mode at a memory device and measuring a CWL at the memory device. A difference between the measured CWL and a programmed CWL is calculated. The calculated difference is transmitted to a memory controller that uses the calculated difference for adjusting a timing delay to match the measured CWL.