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:
Aug. 14, 2012
Filed:
Jul. 19, 2007
Atsushi Oshima, Shiojiri, JP;
Kunio Tabata, Shiojiri, JP;
Toshiyuki Suzuki, Shiojiri, JP;
Osamu Shinkawa, Chino, JP;
Tomoki Hatano, Higashiomi, JP;
Atsushi Oshima, Shiojiri, JP;
Kunio Tabata, Shiojiri, JP;
Toshiyuki Suzuki, Shiojiri, JP;
Osamu Shinkawa, Chino, JP;
Tomoki Hatano, Higashiomi, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid jet apparatus includes a plurality of nozzles provided to the liquid jet head, an actuator provided corresponding to each of the nozzles, drive unit that applies a drive signal to the actuator, drive waveform signal generation unit that generates a drive waveform signal providing a reference of a signal for controlling the actuator, modulator unit that pulse-modulates the drive waveform signal generated by the drive waveform signal generation unit, a digital power amplifier for power-amplifying the modulated signal, which is pulse-modulated by the modulator unit, and a low-pass filter provided individually corresponding to the actuator and for supplying the actuator with the power amplified modulated signal power-amplified by the digital power amplifier as a drive signal after smoothing.