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.

Date of Patent:
Jan. 02, 2018

Filed:

Sep. 28, 2016
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Shuji Otsuka, Shiojiri, JP;

Tadashi Kiyuna, Hachioji, JP;

Toshifumi Asanuma, Hamura, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/687 (2006.01); B41J 2/045 (2006.01); B41J 2/14 (2006.01);
U.S. Cl.
CPC ...
B41J 2/04541 (2013.01); B41J 2/04506 (2013.01); B41J 2/04508 (2013.01); B41J 2/04581 (2013.01); B41J 2/04588 (2013.01); B41J 2/14233 (2013.01);
Abstract

In a capacitive load drive circuit, a first driving signal generator generates a first driving signal from a first control signal according to a characteristic of a first capacitive load, and a second driving signal generator generates a second driving signal from a second control signal according to a characteristic of a second capacitive load. A control signal supply portion supplies a common control signal to the first driving signal generator and the second driving signal generator. The first driving signal generator corrects the common control signal to generate the first control signal, and the second driving signal generator corrects the common control signal to generate the second control signal.


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