ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,470,257, issued on Nov. 11, was assigned to NTT Inc. (Tokyo).

"Doppler shift compensation apparatus and doppler shift compensation method" was invented by Kazumitsu Sakamoto (Musashino, Japan), Yosuke Fujino (Musashino, Japan), Daisuke Goto (Musashino, Japan), Yasuyoshi Kojima (Musashino, Japan) and Kiyohiko Itokawa (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A signal acquisition unit acquires a reception signal received by a reception device from a transmission device that moves relative to the reception device. A compensation unit compensates for a Doppler shift of the reception signal on the basis of a possibility of a change amo...