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. 27, 2010
Filed:
Aug. 13, 2008
Jui-lung Chen, Hsinchu, TW;
Yi-hsun Chung, Miaoli County, TW;
Chia-chiuan Chang, Miaoli County, TW;
Wei-shung Chen, Hsinchu County, TW;
Jui-Lung Chen, Hsinchu, TW;
Yi-Hsun Chung, Miaoli County, TW;
Chia-Chiuan Chang, Miaoli County, TW;
Wei-Shung Chen, Hsinchu County, TW;
Vanguard International Semiconductor Corporation, Hsinchu, TW;
Abstract
A memory system is provided, comprising at least one memory unit and a source power supply circuit. Each memory unit is coupled between a source voltage and a ground voltage and accesses digital data according to a word line signal and a bit line signal. The source power supply circuit provides the source voltage to the memory units. When the memory unit is in a writing status, the source voltage is the first power voltage. When the memory unit is in a reading status, the source voltage is the second power voltage. The second power voltage equals to the first power voltage subtracted by a specific voltage for avoiding rewriting error.