US Patent Issued to Cerence Operating on Oct. 20 for "Tamper-robust watermarking of speech signals" (German Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,770,629, issued on Oct. 20, was assigned to Cerence Operating Co. (Burlington, Mass.).

"Tamper-robust watermarking of speech signals" was invented by Friedrich Faubel (Ulm, Germany), Jonas Jungclaussen (Ulm, Germany), Marcus Groeber (Ulm, Germany), Holger Quast (Ulm, Germany), Oliver Van Porten (Ulm, Germany) and Markus Funk (Ulm, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for applying a watermark signal to a speech signal to prevent unauthorized use of speech signals, the method may include receiving an original speech signal; determining a corresponding spectrogram of the original speech signal; selecting a phase sequence of fixed...