ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,961, issued on April 22, was assigned to SEMES Co. LTD. (Cheonan-si, South Korea).
"Method and device for controlling overhead hoist transfer vehicle" was invented by Jun Beom Lee (Hwaseong-si, South Korea), Yeong Jae Choe (Hwaseong-si, South Korea), Dong Hoon Yang (Anyang-si, South Korea) and Jeong Eun Kim (Cheongju-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and a device for controlling an OHT vehicle are proposed. The method and device presents a solution in which it is possible to minimize a repetition of start and stop of a vehicle, due to congestion on a track, by providing a buffer distance or a buffer waiting time,...