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. 29, 2012
Filed:
Aug. 25, 2010
Fu-yin Huang, Taipei, TW;
Chung-jwu Chen, Taipei, TW;
Tsang-yi Chen, Taipei County, TW;
Chih-heng Chiu, Taipei, TW;
Chung-won Shu, Taipei, TW;
Fu-Yin Huang, Taipei, TW;
Chung-Jwu Chen, Taipei, TW;
Tsang-Yi Chen, Taipei County, TW;
Chih-Heng Chiu, Taipei, TW;
Chung-Won Shu, Taipei, TW;
Transcend Information, Inc., NeiHu Dist, Taipei, TW;
Abstract
A storage device includes a control unit, a first voltage supply unit for supplying a first working voltage to the control unit, N memory units, a second voltage supply unit for supplying a second working voltage to each memory unit, a logic gate, a first voltage detecting unit and a second voltage detecting unit. Once the first voltage detecting unit detects that the first working voltage of the control unit is abnormal, the logic gate outputs a first write protect signal to notify the control unit and control the memory units to enter a write protect mode. Once the second voltage detecting unit detects that the second working voltage of one or more memory units is abnormal, the logic gate outputs a second write protect signal to notify the control unit and control the one or more memory units to enter the write protect mode.