ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,812, issued on Jan. 20, was assigned to CENTRAL SOUTH UNIVERSITY (Changsha, China).

"Geo-acoustic event location method and instability disaster early warning method based on same, geo-acoustic sensor, monitoring system, and readable storage medium" was invented by Longjun Dong (Changsha, China) and Yihan Zhang (Changsha, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Sound signal when a wave generated by a geo-acoustic event source reaches any monitoring point (S1), constructing a theoretical propagation difference model and an observed propagation difference model of the waveform characterization quantity between monitoring points, to calcul...