US Patent Issued to NTT on Dec. 16 for "Distributed acoustic sensing device and method" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,257, issued on Dec. 16, was assigned to NTT Inc. (Tokyo).

"Distributed acoustic sensing device and method" was invented by Tatsuya Okamoto (Musashino, Japan), Daisuke Iida (Musashino, Japan) and Hiroyuki Oshida (Musashino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An object of the present disclosure is to enable vibration analysis using a spectral shift under appropriate conditions depending on a measurement object.According to the present disclosure, there is provided a vibration distribution measuring apparatus which measures backscattered light in an optical fiber to be measured a plurality of times at different times, extracts an opti...