US Patent Issued to NTT on Nov. 3 for "Sound system" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,784,728, issued on Nov. 3, was assigned to NTT Inc. (Tokyo).

"Sound system" was invented by Masahiro Fukui (Tokyo) and Kazunori Kobayashi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A technology is provided that reduces noise heard when a user sits in a seat of an aircraft, without using earphones or headphones. A sound system includes: a control system that generates a control signal for canceling noise in a place close to a head of a user using a seat of an aircraft, from a signal of the noise (noise signal); and a noise-cancellation speaker system including speaker units that emit sound based on the control signal (first noise-cancellation s...