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. 11, 2004
Filed:
Dec. 05, 2002
Kenichi Masumoto, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An inkjet head driving circuit driving piezoelectric actuators for ink ejection provided on an inkjet head H is provided with an analog switch ( ) whose input can be switched between the output voltage of a D/A converter ( ) and ground potential, and outputs either that output voltage or ground potential to a waveform generating portion . The analog switch ( ) is configured such that when a digital signal for generating a voltage rising waveform (voltage falling waveform) with the waveform generating portion is input into the D/A converter ( ), the input into the analog switch ( ) is switched from ground potential to the output voltage of the D/A converter ( ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile