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:
Oct. 05, 2010
Filed:
Jul. 08, 2008
Jyotirmaya Swain, Bangalore, IN;
Edward L Riegelsberger, Fremont, CA (US);
Utpal Barman, Bangalore, IN;
Jyotirmaya Swain, Bangalore, IN;
Edward L Riegelsberger, Fremont, CA (US);
Utpal Barman, Bangalore, IN;
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
Read leveling of memory units designed to receive access requests in a sequential chained topology writing a data pattern to the memory array. In an embodiment, a memory controller first writes a desired pattern into the memory array of a memory unit and then iteratively determines the accurate calibrated delay by setting a compensation delay to a test value, reading a data portion from the memory array based on the test value for the compensation delay, comparing the data portion with an expected data, determining that the test value is a calibrated compensation delay for the memory unit if the data portion equals the expected value.