ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,145, issued on April 21, was assigned to SAMSUNG ELECTRONICS Co. LTD. (Suwon-si, South Korea).
"ZQ calibration circuit and ZQ calibration method" was invented by Bumsoo Lee (Suwon-si, South Korea) and Youngtaek Cho (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a ZQ calibration circuit and a ZQ calibration method. The ZQ calibration circuit includes: a first calibration circuit; and a second calibration circuit sharing a first ZQ voltage with the first calibration circuit, wherein the first ZQ voltage is generated from a ZQ pad connected to an external resistor. The first calibration circuit includes: a first com...