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. 07, 2014
Filed:
Apr. 06, 2010
Meng-shu Lee, Hsinchu Hsien, TW;
Ching-hsien Lee, Hsinchu Hsien, TW;
Hao-jung LI, Hsinchu Hsien, TW;
Po-chun Kuo, Hsinchu Hsien, TW;
Meng-Shu Lee, Hsinchu Hsien, TW;
Ching-Hsien Lee, Hsinchu Hsien, TW;
Hao-Jung Li, Hsinchu Hsien, TW;
Po-Chun Kuo, Hsinchu Hsien, TW;
MStar Semiconductor, Inc., Hsinchu Hsien, TW;
Abstract
A protection circuit, applied to a flash memory including a power supply pin, includes a capacitor and a switch. A power supply provides a reference voltage. The capacitor is electrically connected to the power supply pin and a ground point. The switch is electrically connected between the power supply pin and the power supply. When the reference voltage is higher than a threshold voltage, the switch is turned on, such that the reference voltage is inputted into the power pin via the switch. When the reference voltage is lower than the threshold voltage, the switch is turned off.