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. 26, 2010
Filed:
May. 27, 2008
Chien-hong Lin, Hsinchu County, TW;
Tzu-fang Lee, Hsinchu, TW;
Chi-lung Wang, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A memory device and a refresh method are provided herein. The memory device includes a memory array having memory rows. When an array refresh strobe (ARS) signal is received, it is determined whether the memory rows are required to be refreshed according to tag flags and reset statuses corresponding to the memory rows. When a row refresh strobe (RRS) signal is received, it is determined whether to refresh one of the memory rows according to a plurality of parameters including a value of a row to refresh counter, a value of a refresh deadline counter and/or a queue. When it is decided to start a refresh operation, one of the memory rows is selected according to the tag flag and the status, and the status of the selected memory row is updated after the selected memory row is refreshed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile