公开(公告)号：US20180211673A1

公开(公告)日：2018-07-26

申请号：US15848339

申请日：2017-12-20

Applicant: Digimarc Corporation

Inventor： Ravi K. Sharma ,  Brett A. Bradley ,  Yang Bai ,  Shankar Thagadur Shivappa ,  Ajith Kamath ,  Aparna Gurijala ,  Tomas Filler ,  David A. Cushman

IPC: G10L19/018 ,  G10L19/02

CPC classification number: G10L19/018 ,  G10L19/02

Abstract: Audio signal processing enhances audio watermark embedding and detecting processes. Audio signal processes include audio classification and adapting watermark embedding and detecting based on classification. Advances in audio watermark design include adaptive watermark signal structure data protocols, perceptual models, and insertion methods. Perceptual and robustness evaluation is integrated into audio watermark embedding to optimize audio quality relative the original signal, and to optimize robustness or data capacity. These methods are applied to audio segments in audio embedder and detector configurations to support real time operation. Feature extraction and matching are also used to adapt audio watermark embedding and detecting.

公开(公告)号：US09852736B2

公开(公告)日：2017-12-26

申请号：US15090279

申请日：2016-04-04

Applicant: Digimarc Corporation

Inventor： Ravi K. Sharma ,  Brett A. Bradley ,  Yang Bai ,  Shankar Thagadur Shivappa ,  Ajith Kamath ,  Aparna Gurijala ,  David A. Cushman

IPC: G10L19/00 ,  G10L19/018 ,  G10L19/02

CPC classification number: G10L19/018 ,  G10L19/02

Abstract: Audio signal processing enhances audio watermark embedding and detecting processes. Audio signal processes include audio classification and adapting watermark embedding and detecting based on classification. Advances in audio watermark design include adaptive watermark signal structure data protocols, perceptual models, and insertion methods. Perceptual and robustness evaluation is integrated into audio watermark embedding to optimize audio quality relative the original signal, and to optimize robustness or data capacity. These methods are applied to audio segments in audio embedder and detector configurations to support real time operation. Feature extraction and matching are also used to adapt audio watermark embedding and detecting.