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. 26, 2021
Filed:
Sep. 26, 2018
International Business Machines Corporation, Armonk, NY (US);
James A. O'Connor, Ulster Park, NY (US);
Barry M. Trager, Yorktown Heights, NY (US);
Warren E. Maule, Cedar Park, TX (US);
Brad W. Michael, Cedar Park, TX (US);
Marc A. Gollub, Travis, TX (US);
Patrick J. Meaney, Poughkeepsie, NY (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Embodiments of the present invention include a memory module that includes a plurality of memory devices and a memory buffer device. The memory devices are characterized as one of a high or low random bit error rate (RBER) memory device. The memory buffer device includes a read data interface to receive data read from a memory address on one of the memory devices, and common error correction logic to detect and correct error conditions in data read from both high RBER and low RBER memory devices. The memory buffer device also includes refresh rate logic configured to adjust a refresh rate based on the detected error conditions.