ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,470,864, issued on Nov. 11.
"Audio systems, devices, and methods" was invented by Dean Robert Gary Anderson (Orem, Utah), Dean Anderson (Vernal, Utah) and Daniel Joseph Anderson (Chandler, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In one embodiment of an audio system, a transducer can be coupled to a passive acoustic directional amplifier to provide various benefits and improvements, including improvements to: speech intelligibility, signal-to-noise ratio, effective equivalent input noise, at-a-distance acoustic signal reception, and directional preference. In another embodiment, the shape of an interior surface of a passive acoustic directio...