US Patent Issued to NTT on Aug. 4 for "Optical transmission characteristic estimation apparatus, optical transmission characteristic estimation method and program" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,700,923, issued on Aug. 4, was assigned to NTT Inc. (Tokyo).

"Optical transmission characteristic estimation apparatus, optical transmission characteristic estimation method and program" was invented by Takeo Sasai (Musashino, Japan), Etsushi Yamazaki (Musashino, Japan) and Masanori Nakamura (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided an optical transmission characteristic estimation device that models an optical effect of an optical transmission line by a nonlinear Schrodinger equation, divides the optical transmission line into N (N is an integer of two or more) sections, obtains a solution of the nonlinear Schrodinger equ...