ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,583, issued on Jan. 20, was assigned to Goldcard Smart Group Co. Ltd. (Zhejiang, China) and TANCY Instrument Group Co. Ltd. (Zhejiang, China).
"Pulse signal output circuit and flowmeter" was invented by Gengwei Zhang (Zhejiang, China), Xianle Chen (Zhejiang, China) and Yuejian Fang (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a pulse signal output circuit and a flowmeter. The pulse signal output circuit includes a signal-receiving module, a photoelectrical coupler, a signal conversion module; where the signal-receiving module is connected to the photoelectrical coupler, and the photoelectrical coupler is connected to ...