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:
Dec. 24, 2019
Filed:
Nov. 28, 2018
Applicant:
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Inventor:
Akira Masaoka, Sakai, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/356 (2006.01); G09G 3/20 (2006.01); H03K 19/0185 (2006.01);
U.S. Cl.
CPC ...
H03K 3/356113 (2013.01); G09G 3/20 (2013.01); H03K 19/018507 (2013.01); G09G 2310/0289 (2013.01); G09G 2310/0291 (2013.01);
Abstract
A signal level converter includes a bias generating circuit that generates a bias voltage, and a level shifter circuit that converts a lower voltage signal into a higher voltage signal in response to the bias voltage. The bias generating circuit includes a replica circuit that controls an on-current of the level shifter circuit in response to the bias voltage output from an operational amplifier.