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:
Oct. 13, 2020
Filed:
Aug. 28, 2018
Seiko Epson Corporation, Tokyo, JP;
Takeo Kitazawa, Azumino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A first circuit and a second circuit, which have different operating voltages, are connected through a level shifter, and a combination circuit below is provided in the level shifter. An enable signal, which is switched between active and inactive states according to whether or not a potential is supplied to a second high potential power line, is applied to the combination circuit. The combination circuit outputs a first signal and a second signal, which is acquired by logically inverting the first signal, to a level shift circuit according to an output signal of the first circuit, in a case where the enable signal is active, and causes both the first signal and the second signal to be at a low level in a case where the enable signal is inactive.