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:
Dec. 13, 2016
Filed:
Dec. 05, 2014
Seiko Epson Corporation, Tokyo, JP;
Masuhide Ikeda, Matsumoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
The following are included: a series circuit that is connected between a first node and a second node and includes an impedance element and a capacitor connected to each other by a third node; a first transistor that is connected between the first node and a fourth node and turns on in accordance with an increase in voltage generated in the impedance element; a voltage divider circuit that divides voltage between the fourth node and the second node; a second transistor that turns on in accordance with an increase in the divided voltage and increases current flowing in the impedance element; a detection circuit that activates an output signal upon detection of an on state of the second transistor; and a discharge circuit that allows current to flow from the first node to the second node when the output signal of the detection circuit is activated.