ALEXANDRIA, Va., June 6 -- United States Patent no. 12,284,472, issued on April 22, was assigned to Headphone Events Inc. (Boston).

"Wearable microphone transmitter for use with a plurality of headphones" was invented by Costas Papadopoulos (Acton, Mass.), Joseph Genovese (Lincoln, Mass.) and Nadim El-Fata (Winchester, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A microphone transmitter has a microcontroller that operates in a high gain mode when the portable housing is in a horizontal position or in a low gain mode when the portable housing is in a vertical position. In another implementation, the microcontroller operates in one of the following modes: (1) operate the microphone at a low microphone...