ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,547,563, issued on Feb. 10, was assigned to FANUC Corp. (Yamanashi, Japan).
"I/O unit" was invented by Masahiro Saeki (Yamanashi-ken, Japan) and Shinichi Kuwahata (Yamanashi-ken, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An I/O unit transmits signals between a master unit and instruments. The master unit has two redundant master processing circuits. The I/O unit includes: a first slave processing circuit that performs input and output of signals with respect to one of the two master processing circuits; and a second slave processing circuit that performs input and output of signals with respect to the other one of the two redundant master pro...