US Patent Issued to NTT on Aug. 11 for "Sound measurement apparatus, sound measurement method, and program" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,402, issued on Aug. 11, was assigned to NTT Inc. (Tokyo).

"Sound measurement apparatus, sound measurement method, and program" was invented by Kenji Ishikawa (Tokyo), Yoshifumi Shiraki (Tokyo), Takehiro Moriya (Tokyo), Atsushi Ishizawa (Tokyo), Kenichi Hitachi (Tokyo) and Katsuya Oguri (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a measurement technology of an optical phase modulation amount due to sound without being affected by noise included in average light intensity. The measurement technology includes: an interference light generator that obtains first light including light subjected to optical phase modulation by a sound ...