ALEXANDRIA, Va., April 15 -- United States Patent no. 12,604,153, issued on April 14, was assigned to Nokia Technologies Oy (Espoo, Finland).

"Virtual content" was invented by Sujeet Shyamsundar Mate (Tampere, Finland), Arto Juhani Lehtiniemi (Tampere, Finland) and Jussi Artturi Leppanen (Tampere, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus, method and computer program is disclosed relating to processing of virtual content. In an example embodiment, the method may comprise providing data representing one or more acoustic properties of a virtual scene, the virtual scene being for output to a user device associated with a user and comprising one or more audio sources at respective locat...