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:
Aug. 05, 2014
Filed:
Jan. 25, 2013
Seiko Instruments Inc., Chiba, JP;
Tomohiro Oka, Chiba, JP;
Seiko Instruments Inc., Chiba, JP;
Abstract
The power-on reset circuit includes: a NMOS transistor having a source connected to a second power supply terminal and a gate connected to a drain thereof; a depletion-type NMOS transistor having a source connected to the drain of the NMOS transistor, a drain connected to a first power supply terminal and a gate connected to the second power supply terminal; a PMOS transistor having a source connected to the first power supply terminal, a gate connected to the drain of the NMOS transistor and a drain; a capacitor having one end connected to the drain of the PMOS transistor and the other end connected to the second power supply terminal; and a waveform shaping circuit having an input terminal connected to the drain of the PMOS transistor and an output terminal from which a power-on reset signal is output.