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:
Apr. 20, 2021
Filed:
May. 27, 2020
Db Hitek Co., Ltd., Seoul, KR;
DB HiTek Co., Ltd., Seoul, KR;
Abstract
An input/output circuit includes a logic unit configured to generate a first signal and a second signal based on data and a first control signal, a driver including a first PMOS transistor having a first gate, a first source that receives a first voltage from a first voltage source, and a first drain, and a first NMOS transistor having a second gate that receives the second signal, a second source that receives a second voltage from a second voltage source less than the first voltage, and a second drain connected to the first drain, a gate-tracking circuit configured to receive the first signal and transfer the received first signal to the first gate of the first PMOS transistor based on a second control signal, and an input/output terminal connected to the first drain and the second drain.