ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,258, issued on Sept. 15, was assigned to SKYTED (Toulouse, France).

"Methods and systems for maintaining confidentiality of vocal audio" was invented by Stephane Hersen (Toulouse, France) and Thibault Abily (Toulouse, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for maintaining confidentiality of vocal audio is provided. The system includes a shell defining an internal volume and configured for wearing on a face of a user, wherein the shell comprises a sound absorbing material, a first sound sensor configured to receive voice audio, a second sound sensor configured to receive at least attenuated voice audio, and a computing device...