ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,699,289, issued on Aug. 4.
"Optical modulator" was invented by Toshio Kataoka (Tokyo) and Norikazu Miyazaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The purpose of the present invention is to provide an optical modulator in which propagation loss related to transmission of a high-frequency signal is reduced. An optical modulator, in which an electro-optical conversion element E/OC and a driver circuit DRV for driving the electro-optical conversion element are housed in the same case CA, includes: a multiplexer MUX that converts an input modulation signal, which is input from an outside of the case, into an output modulation signal having a h...