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. 25, 2022
Filed:
Jan. 28, 2021
Samsung Electronics Co., Ltd., Suwon-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
An interface circuit includes a first switch element connected to a first power supply node, supplying a first power supply voltage, and an output node, transmitting an output signal, and controlled by a first input signal, a second switch element connected to a second power supply node, supplying a second power supply voltage, lower than the first power supply voltage, and the output node and controlled by a second input signal, different from the first input signal, a first resistor connected between the first power supply node and the first switch element, a second resistor connected between the second power supply node and the second switch element, a first capacitor connected between the first resistor and the first switch element and charged and discharged by a first control signal, a second capacitor connected between the second resistor and the second switch element and charged and discharged by a second control signal, and a buffer circuit configured to output the first control signal and the second control signal and connected to a third power supply node, supplying a third power supply voltage, through a first variable resistor and connected to a fourth power supply node, supplying a fourth power supply voltage, lower than the third power supply node, through a second variable resistor.