ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,875, issued on Oct. 21, was assigned to GlobalFoundries U.S. Inc. (Malta, N.Y.).
"High-voltage Schmitt trigger" was invented by Sanmitra Bharat Naik (Bangalore, India) and Asif Iqbal (Bangalore, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a disclosed Schmitt trigger, an input stage includes a first p-channel field effect transistor (PFET) and a second PFET, which are connected in series to a VDD rail, and a first n-channel field effect transistor (NFET) and a second NFET, which are connected in series between ground and the second PFET. An output stage includes additional FETs for hysteresis. The first PFET and first NFET are different f...