US Patent Issued to NEC on Feb. 10 for "Communication device including nested modulator and bias control method for nested modulator" (Japanese Inventor)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,549,258, issued on Feb. 10, was assigned to NEC Corp. (Tokyo).

"Communication device including nested modulator and bias control method for nested modulator" was invented by Ken-ichiro Yoshino (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A communication device includes a nested modulator composed of sub modulators and a phase shifter. The nested modulator is controlled by: modulating a double pulse by phase and intensity modulation according to transmission information, wherein the double pulse thus modulated is transmitted to another communication device; controlling bias voltages applied respectively to the sub modulators so that a first erro...