US Patent Issued to SHANGHAI CHENZHU INSTRUMENT on Oct. 14 for "Bidirectional transmission circuit for universal signal" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,296, issued on Oct. 14, was assigned to SHANGHAI CHENZHU INSTRUMENT Co. LTD. (Shanghai).

"Bidirectional transmission circuit for universal signal" was invented by Min Xu (Shanghai), Gang Du (Shanghai), Fan He (Shanghai) and Xi Fang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bidirectional transmission circuit for a universal signal, comprising an intrinsically safe energy limiting module, a first signal coupling module, an isolation transformer module, a second signal coupling module and a control module; the first signal coupling module adjusts a first direct current signal of a universal signal to a first alternating current signal,...