Patent · US Active

Tamper-robust watermarking of speech signals

US12067994B2 · kind B2 · utility

0Cited by

0References

17Claims

0Family size

Assignee

CERENCE OPERATING COMPANY · US

Inventors

Friedrich Faubel · Ulm, DE
Jonas Jungclaussen · Ulm, DE
Marcus Groeber · Redwood City, US
Holger Quast · Merelbeke, BE
Oliver Van Porten · Roetgen, DE
Markus Funk · Ulm, DE

Key dates

Filing date	Jul 27, 2022
Grant date	Aug 20, 2024
Priority date	—
Expiry date	Jul 27, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG10L21/14
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

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 frame length and uniform distribution; and generating an encoded watermark signal based on the corresponding spectrogram and phase sequence.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.