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. 05, 2016
Filed:
Dec. 23, 2013
Seiko Epson Corporation, Tokyo, JP;
Noritaka Ide, Shiojiri, JP;
Kunio Tabata, Shiojiri, JP;
Atsushi Oshima, Shiojiri, JP;
Shinichi Miyazaki, Suwa, JP;
Hiroyuki Aizawa, Shiojiri, JP;
Seiichi Taniguchi, Asahi-mura, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A liquid jet apparatus according to the present invention includes a drive waveform generator adapted to generate a drive waveform signal, a modulator adapted to execute pulse modulation on the drive waveform signal, a digital power amplifier adapted to power-amplify the modulated signal, on which the pulse modulation is executed by the modulator, with a pair of switching elements push-pull coupled with each other, a low pass filter adapted to smooth the amplified digital signal obtained by the power-amplification of the digital power amplifier, and a modulation period modification circuit adapted to modify a modulation period of the pulse modulation of the modulator based on data of the drive waveform signal.