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. 29, 2018
Filed:
Jul. 14, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Akira Abe, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
B41J 2/0455 (2013.01); B41J 2/0457 (2013.01); B41J 2/04518 (2013.01); B41J 2/04523 (2013.01); B41J 2/04541 (2013.01); B41J 2/04548 (2013.01); B41J 2/04581 (2013.01);
Abstract
A drive circuit includes an amplification unit that amplifies a signal and outputs the amplified signal toward a node; and a voltage output unit that outputs a voltage responding to the signal toward the node during a predetermined period of a part or all of a period in which a magnitude of a voltage change of the signal is less than or equal to a threshold. The amplification unit includes a differential amplifier, a selector, and transistors, and the voltage output unit includes a linear amplifier and a switch.