ALEXANDRIA, Va., June 12 -- United States Patent no. 12,302,073, issued on May 13, was assigned to Dolby Laboratories Licensing Corp. (San Francisco).

"Non-intrusive transducer health detection" was invented by Joseph McKee (Wollstonecraft, Australia), Timothy Alan Port (Drummoyne, Australia) and Paul Holmberg (North Ryde, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments are disclosed for non-intrusive transducer health detection in an audio system. In an embodiment, a method performed by the audio system comprises outputting one or more encoded inaudible acoustic signals into an acoustic transmission medium using a first transducer. The one or more encoded inaudible acoustic signals are ...