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.:

US 9024681 B1

PDF
Full Text
Expired
Date of Patent:
May. 05, 2015

Filed:

Aug. 31, 2011
Applicants:

Yuhichiroh Murakami, Osaka, JP;

Yasushi Sasaki, Osaka, JP;

Etsuo Yamamoto, Osaka, JP;

Inventors:

Yuhichiroh Murakami, Osaka, JP;

Yasushi Sasaki, Osaka, JP;

Etsuo Yamamoto, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 (2006.01); G05F 3/16 (2006.01); H04L 25/02 (2006.01); G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
G05F 3/16 (2013.01); H04L 25/0272 (2013.01); G09G 3/3674 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/0291 (2013.01);
Abstract

A signal processing circuit of the present invention includes: first and second input terminals; an output terminal; a bootstrap capacitor; a first output section connected to the second input terminal and the output terminal; a second output section connected to the first input terminal, a first power source, and the output terminal; an electric charge control section for controlling the electric charge of the bootstrap capacitor, the electric charge control section being connected to the first input terminal; and a resistor having (i) a first end connected to the output terminal and (ii) a second end connected to a second power source. This arrangement allows the signal processing circuit to maintain an output potential even after a bootstrap effect has worn off.


Find Patent Forward Citations

Loading…