US Patent Issued to SIGMASTAR TECHNOLOGY on Nov. 11 for "Fail-safe input/output device and voltage switching method" (Taiwanese Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,470,121, issued on Nov. 11, was assigned to SIGMASTAR TECHNOLOGY LTD. (Fujian, China).

"Fail-safe input/output device and voltage switching method" was invented by Chi-Yun Liu (Taiwan, Taiwan), Wei-Ping Wang (Taiwan, Taiwan) and Chang-Han Li (Taiwan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fail-safe input/output device includes an input/output circuit, a comparator circuit and a resistance adjustment circuit. The input/output circuit transmits a voltage having a higher voltage level in a first supply voltage and a second supply voltage to a first node to generate a driving voltage, wherein a first target level of the first supply voltage...