ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,549,379, issued on Feb. 10, was assigned to Sennheiser electronic SE & Co. KG (Wedemark, Germany).
"Microphone" was invented by Sven Wachtendorf (Wedemark, Germany), Norbert Werner (San Francisco) and Alexander Kruger (Burgdorf, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A microphone is provided comprising a microphone capsule adapted to capture an audio signal, an AD converter configured to convert the captured audio signal into a digital signal, a block generator configured to divide the digital audio signal into a plurality of audio blocks, a private key signature unit configured to generate at least one signature based on at least one of...