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. 31, 2011
Filed:
Oct. 09, 2007
Shuhei Abe, Atsugi, JP;
Shuhei Abe, Atsugi, JP;
Mitsumi Electric Co., Ltd., Tokyo, JP;
Abstract
A disclosed reset device for outputting a reset signal based on a magnitude of an input power supply voltage includes: a power supply voltage monitoring unit including a comparator to which a detection voltage detected based on the magnitude of the power supply voltage and a reference voltage to be used as an inversion reference for the reset signal are input, the comparator comparing the detection voltage with the reference voltage and outputting an output voltage in accordance with a result of the comparison; and a reset signal outputting unit including a CMOS inverter to which the output voltage output from the power supply voltage monitoring unit is input, the unit outputting the reset signal. An impedance unit is disposed between a P-channel MOS transistor constituting the inverter and a power supply voltage line and/or between an N-channel MOS transistor constituting the inverter and a ground line.