ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,882, issued on May 20, was assigned to Fujitsu Ltd. (Kawasaki, Japan).
"Nonlinearity compensation circuit, and optical transceiver" was invented by Hisao Nakashima (Kawasaki, Japan) and Naoya Okada (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A nonlinearity compensation circuit includes a detector that detects a combination of input levels of a plurality of input signals, a memory that saves a correction value information item to compensate for nonlinear distortion, the correction value information item being saved corresponding to the combination of the input levels, and a compensator that corrects a target signal among said plur...