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:
May. 08, 2018
Filed:
May. 19, 2017
Applicant:
Via Alliance Semiconductor Co., Ltd., Shanghai, CN;
Assignee:
VIA ALLIANCE SEMICONDUCTOR CO., LTD., Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01); G11C 11/406 (2006.01); G06F 9/38 (2018.01); G11C 16/10 (2006.01); G11C 16/24 (2006.01); G11C 16/26 (2006.01);
U.S. Cl.
CPC ...
G11C 11/40603 (2013.01); G06F 9/3838 (2013.01); G11C 11/40615 (2013.01); G11C 16/0483 (2013.01); G11C 16/10 (2013.01); G11C 16/24 (2013.01); G11C 16/26 (2013.01);
Abstract
A schedule for refreshing a dynamic random access memory (DRAM). Access commands for a DRAM are queued in a command queue. First-rank bank-refresh time points and second-rank bank-refresh time points are alternately provided within a refresh inspection interval for the microcontroller to alternately refresh a first rank and a second rank of the DRAM bank-by-bank based on the content contained in the command queue.