ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,559, issued on Aug. 5, was assigned to UNITED MICROELECTRONICS CORP. (Hsinchu, Taiwan).
"Input/output circuit" was invented by Pei-Shin Chiu (Hsinchu, Taiwan), Te-Chang Wu (Hsinchu County, Taiwan), Chih-Yuan Chung (Hsinchu, Taiwan) and Wen-Ching Huang (Hsinchu County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An input/output circuit (I/O circuit) includes the following elements. An input/output pad (I/O pad) has a plurality of operation mode, including an output mode, a normal input mode and a tolerance mode of an input mode. A first control circuit provides a first control signal in response to a pad voltage of the I/O pad and a supply v...