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:
May. 27, 2025
Filed:
Apr. 26, 2024
Samsung Electronics Co., Ltd., Suwon-si, KR;
Hongjin Cheon, Suwon-si, KR;
Youngkyun Park, Suwon-si, KR;
Hyosang Youn, Suwon-si, KR;
Deokgi Lee, Suwon-si, KR;
Wookwan Lee, Suwon-si, KR;
Abstract
An input buffer circuit includes a low voltage generator, a first hysteresis buffer and a first dual-supply level shifter. The low voltage generator is connected to a first power supply voltage having a first voltage level, generates a mirrored current based on the first power supply voltage and generates a second power supply voltage having a second voltage level smaller than the first voltage level. The second power supply voltage is independent from a variation of the first power supply voltage. The first hysteresis buffer operates based on the second power supply voltage and generates a first inverted reset signal having hysteresis based on an inverted reset signal. The first dual-supply level shifter operates based on the first and second power supply voltages and generates a second inverted reset signal by shifting the first inverted reset signal from the second voltage level to the first voltage level.