ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,702, issued on May 27, was assigned to SHENZHEN CARKU TECHNOLOGY Co. Ltd. (Shenzhen, China).
"Switch identification circuit and electric device" was invented by Yun Lei (Guangdong, China), Zhifeng Zhang (Guangdong, China) and Jianping Lin (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A switch identification circuit is provided. The switch identification circuit includes a detecting unit, a control unit, a connection unit, a first connection terminal, and a second connection terminal. The detecting unit is coupled with the first connection terminal and the second connection terminal, and configured to detect voltages at the two con...