ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,902, issued on Oct. 14, was assigned to NTT INC. (Tokyo).
"Optical transmitter" was invented by Shigeru Kanazawa (Musashino, Japan), Takahiko Shindo (Musashino, Japan) and Naoki Fujiwara (Musashino, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical transmitter capable of significantly suppressing a fluctuation in frequency response characteristics due to a fabrication error in internal wire length while reducing a subcarrier size of a module of the optical transmitter is provided. The optical transmitter includes a subcarrier on which an RF wiring board, a modulated laser chip, and a terminating resistor are mounted. A ground pad is on...