ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,431,977, issued on Sept. 30, was assigned to YAZAKI Corp. (Tokyo).
"Transmission device and signal transmission system" was invented by Takamitsu Aiba (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transmission device includes an RF signal generation unit, a pulse signal generation unit, a coupling unit, a linear driver, and a light-emitting element. The RF signal generation unit generates an RF signal to be modulated by a carrier wave. The pulse signal generation unit generates a pulse signal. The coupling unit couples the RF signal and the pulse signal to each other and generate a superimposed signal. The linear driver amplifies th...