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, 2022
Filed:
Jun. 25, 2020
Seiko Epson Corporation, Tokyo, JP;
Tomokazu Yamada, Shiojiri, JP;
Abstract
An liquid ejecting apparatus includes a drive signal output circuit, a control signal output circuit, a differential signal output circuit, a residual vibration signal input circuit, and a head unit, in which the head unit includes an integrated circuit and an ejector, and the integrated circuit includes a drive signal input terminal that inputs a first drive signal, a residual vibration signal output terminal that outputs a residual vibration signal, a differential signal receiving circuit that converts a pair of differential signals into a control signal and outputs the control signal, a drive signal selection circuit that outputs a second drive signal based on the control signal and the first drive signal, a drive signal output terminal that outputs the second drive signal to the ejector, and a residual vibration signal output circuit that outputs a residual vibration signal based on the residual vibration generated by driving the piezoelectric element.