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:
Feb. 20, 2024
Filed:
Nov. 30, 2021
Seiko Epson Corporation, Tokyo, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
An amplifier circuit, a level shift circuit; and a demodulation circuit, in which in a second mode obtained by shifting a reference potential of the amplification modulation signal to a second potential having a potential higher than a first potential, the second gate driver included in the level shift circuit performs a constant voltage control that outputs a third gate signal controlling a third transistor to be conductive and a fourth gate signal controlling a fourth transistor to be non-conductive, and a charge control that outputs the third gate signal controlling the third transistor to be non-conductive and the fourth gate signal controlling the fourth transistor to be conductive, and then outputs the third gate signal controlling the third transistor to be conductive and the fourth gate signal controlling the fourth transistor to be non-conductive.