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:
Jul. 19, 2016
Filed:
Mar. 04, 2015
Seiko Epson Corporation, Tokyo, JP;
Toshihito Takagi, Chino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A semiconductor device which is provided to correspond to each of a plurality of nozzles discharging a liquid and controls a plurality of drive elements causing a liquid to be discharged from each nozzle by an application of a drive signal includes a detection circuit which detects a residual vibration signal of the drive element, an output terminal which is provided to correspond to each of the plurality of drive elements, a discharge transistor which controls an application of the drive signal to the drive element through the output terminal, and a detection transistor which controls an application of the residual vibration signal to the detection circuit through the output terminal, in which the detection transistor is smaller than the discharge transistor in size, and the discharge transistor is disposed between the detection transistor and the output terminal.