公开(公告)号：US20140142958A1

公开(公告)日：2014-05-22

申请号：US14054492

申请日：2013-10-15

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

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.

Abstract translation: 音频信号处理增强了音频水印嵌入和检测过程。 音频信号处理包括基于分类的音频分类和适应水印嵌入和检测。 音频水印设计的进步包括自适应水印信号结构数据协议，感知模型和插入方法。 感知和鲁棒性评估集成到音频水印嵌入中，以优化相对于原始信号的音频质量，并优化鲁棒性或数据容量。 这些方法适用于音频嵌入器和检测器配置中的音频段，以支持实时操作。 特征提取和匹配也用于适应音频水印嵌入和检测。

公开(公告)号：US11990143B2

公开(公告)日：2024-05-21

申请号：US17532884

申请日：2021-11-22

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: G10L19/00 ,  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.

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.

公开(公告)号：US09305559B2

公开(公告)日：2016-04-05

申请号：US14054492

申请日：2013-10-15

Applicant: Digimarc Corporation

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

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

CPC classification number: G10L19/018 ,  G10L19/02

Abstract: Audio watermark encoding methods employ reversing polarity and pairwise embedding. A watermark signal is generated, mapped to pairs of embedding locations and inserted in the members of the pair with reverse polarity. The pairs of embedding locations correspond to adjacent regions or frames in time or frequency domains. A method for controlling an audio output device captures audio from the device, extracts its identity from a watermark, and modifies the operation of the device, e.g. varying watermark strength or audio loudness.

Abstract translation: 音频水印编码方法采用反转极性和成对嵌入。 生成水印信号，映射到嵌入位置对，并以相反的极性插入对中的成员中。 嵌入位置对对应于时域或频域中的相邻区域或帧。 用于控制音频输出设备的方法从设备捕获音频，从水印中提取其身份，并修改设备的操作，例如， 变化的水印强度或音频响度。

公开(公告)号：US20140108020A1

公开(公告)日：2014-04-17

申请号：US13841727

申请日：2013-03-15

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

CPC classification number: G10L19/018 ,  G10L19/02 ,  G10L19/028 ,  G10L25/87

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：US20220335959A1

公开(公告)日：2022-10-20

申请号：US17532884

申请日：2021-11-22

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

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：US20160293172A1

公开(公告)日：2016-10-06

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 ,  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.

Abstract translation: 音频信号处理增强了音频水印嵌入和检测过程。 音频信号处理包括基于分类的音频分类和适应水印嵌入和检测。 音频水印设计的进步包括自适应水印信号结构数据协议，感知模型和插入方法。 感知和鲁棒性评估集成到音频水印嵌入中，以优化相对于原始信号的音频质量，并优化鲁棒性或数据容量。 这些方法适用于音频嵌入器和检测器配置中的音频段，以支持实时操作。 特征提取和匹配也用于适应音频水印嵌入和检测。

公开(公告)号：US20140279493A1

公开(公告)日：2014-09-18

申请号：US13846351

申请日：2013-03-18

Applicant: Digimarc Corporation

Inventor： Ajith Kamath

IPC: H04L29/06 ,  G06Q20/32

CPC classification number: H04L63/08 ,  G06Q20/3274 ,  G06Q20/3276 ,  G07F19/20 ,  H04W12/00522

Abstract: A person's smartphone serves as a security token—used variously to establish the user's authorization, and to test the bona fides of the counter-party system. In one illustrative ATM arrangement, a bank's computer system and the user's smartphone share secret information across a network. The smartphone employs this shared secret to generate a corresponding image, which is displayed on its screen. The displayed image is sensed by a camera in the ATM, which sends corresponding data back to the bank computer system. The bank computer system analyzes the received data and responds by sending information to the ATM authorizing a transaction. By such arrangement, authentication of the transaction involves one-way optical communication of visual information between the ATM and the smartphone, and two-way network communication of information between the ATM and the bank computer system. A great number of other features and arrangements are also detailed.

Abstract translation: 一个人的智能手机作为安全令牌，被用来建立用户的授权，并测试对方系统的善意。 在一个说明性的ATM装置中，银行的计算机系统和用户的智能电话在网络上共享秘密信息。 智能手机采用这种共享秘密来生成相应的图像，显​​示在其屏幕上。 显示的图像由ATM中的相机感测，其将相应的数据发送回银行计算机系统。 银行计算机系统分析接收的数据，并通过向ATM授权交易发送信息进行响应。 通过这种安排，交易的认证涉及ATM和智能手机之间的视觉信息的单向光学通信，以及ATM和银行计算机系统之间的信息的双向网络通信。 还详细介绍了许多其他功能和安排。