ALEXANDRIA, Va., June 18 -- United States Patent no. 12,327,569, issued on June 10, was assigned to NOKIA TECHNOLOGIES OY (Espoo, Finland).

"Spatial parameter signalling" was invented by Tapani Pihlajakuja (Vantaa, Finland) and Mikko-Ville Laitinen (Espoo, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus comprising means for: obtaining at least one audio signal; obtaining at least one parameter respectively for each of at least two frequency bands associated with the at least one audio signal; and selecting a frequency band of the at least two frequency bands based on comparing at least one further respective parameter for each of the at least two frequency bands wherein the at least one f...