ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,543,004, issued on Feb. 3, was assigned to Apple Inc. (Cupertino, Calif.).
"Spatial headphone transparency" was invented by Ismael H. Nawfal (Redondo Beach, Calif.), Joshua D. Atkins (Los Angeles), Stephen J. Nimick (Los Angeles), Guy C. Nicholson (San Carlos, Calif.) and Jason M. Harlow (San Jose, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Digital audio signal processing techniques used to provide an acoustic transparency function in a pair of headphones. A number of transparency filters can be computed at once, using optimization techniques or using a closed form solution, which are based on multiple re-seatings of the headphones and that ar...