ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,481,270, issued on Nov. 25, was assigned to SHANGHAI CHENZHU INSTRUMENT Co. LTD. (Shanghai).
"Hart circuit and method for determining the state of a field interface thereof" was invented by Min Xu (Shanghai), Gang Du (Shanghai), Jianjun Chen (Shanghai) and Chunhui Zhang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application discloses a HART circuit and a method for determining the state of the field interface thereof. The HART circuit includes a control interface, an adjustable power supply module, a first HART module, an isolation module, and a field interface. The first HART module is configured to generate a first control si...