ALEXANDRIA, Va., June 16 -- United States Patent no. 12,309,570, issued on May 20, was assigned to Harman International Industries Inc. (Stamford, Conn.).
"Personalized three-dimensional audio" was invented by Joy Lyons (Lake Forest Park, Wash.), Jason Riggs (Northridge, Calif.) and Alfredo Fernandez Franco (Sherman Oaks, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A headphone system includes a calibration microphone for performing a calibration routine with a user. The calibration microphone receives a stimulus signal emitted by the headphone system and generates a response signal indicating variations in the stimulus signal that arise due to physiological attributes of the user. Based on the stim...