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:
Jun. 02, 2015
Filed:
May. 11, 2011
Chung Zen Chen, Hsinchu, TW;
Chung Zen Chen, Hsinchu, TW;
Elite Semiconductor Memory Technology Inc., Hsinchu, TW;
Abstract
A circuit for outputting a refresh execution signal to a memory cell of a memory device in an auto-refresh mode comprises a first frequency dividing unit, a first selection circuit, a second frequency dividing unit, and a second selection circuit. The first frequency dividing unit receives an auto-refresh signal from outside the memory device and generates a plurality of first divided signals. The first selection circuit generates a selection signal selected from the auto-refresh signal and the first divided signals. The second frequency dividing unit divides the frequency of the selection signal and generates a plurality of second divided signals. The second selection circuit generates the refresh execution signal from the selection signal and the second divided signals.
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