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:
Sep. 01, 2015
Filed:
Dec. 19, 2013
Seiko Epson Corporation, Tokyo, JP;
Masuhide Ikeda, Matsumoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
The invention provides an electrostatic protection circuit that is effective in absorbing static electricity that is continuously input. The electrostatic protection circuit includes a circuit constituting a latch and a static electricity absorption circuit. When static electricity is input, the static electricity absorption circuit maintains its on state for a while at an output held by the latch circuit, and absorbs static electricity that is continuously input. When the static electricity has been absorbed, the output of the latch is inverted so as to turn off the static electricity absorption circuit, and the operation of absorbing static electricity ends. At this point in time, normal operation serving as an input terminal is performed.