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:
Jan. 21, 2025
Filed:
Oct. 23, 2023
Lapis Technology Co., Ltd., Yokohama, JP;
Hiroshi Tsuchi, Yokohama, JP;
LAPIS Technology Co., Ltd., Yokohama, JP;
Abstract
An output buffer circuit includes a first transistor supplying a first high-voltage power supply voltage in a case of being ON in response to a voltage of an input signal received through a gate; a second transistor supplying a second high-voltage power supply voltage in the case of being ON in response to a voltage of the input signal received through a gate; an output control part that shifts a transistor, of the first and second transistors, being ON to OFF at a time of voltage change of the input signal by changing the voltage in the gate thereof, and turns a transistor being OFF to ON by changing the voltage in the gate thereof at a rate of change based on a current value controlled by a bias voltage, and a bias modulation part that sets a voltage value of the bias voltage to a designated voltage value.