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:
Apr. 08, 2008
Filed:
Nov. 12, 2004
Mark David Bellows, Rochester, MN (US);
Ryan Abel Heckendorf, Rochester, MN (US);
Mark David Bellows, Rochester, MN (US);
Ryan Abel Heckendorf, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, an apparatus, and a computer program are provided to control refreshes in Extreme Data Rate (XDR™) memory systems. XDR™ memory systems employ calibrations to ensure the precise transmission of data. During calibrations, memory refreshes can occur; however, these refreshes can interfere with calibration streams. Therefore, to alleviate collisions and interferences, refreshes are deferred to periods where no calibrations are taking place. The number of deferred refreshes is also tracked such that the overall loss of refreshes is prevented.