ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,661, issued on Dec. 2, was assigned to NEC Corp. (Tokyo).

"Spatially multiplexed acoustic modem" was invented by Sarper Ozharar (Pennington, N.J.) and Ting Wang (West Windsor, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A radio-controlled, two-way acoustic modem for operating with a distributed fiber optic sensing (DFOS) system including circuitry that receives radio signals including configuration information, configures the modem to operate according to the configuration information, and generate acoustic signals that are detected by the DFOS system. The acoustic modem includes one or more sensors that detect environmental information that ...