公开(公告)号：WO2014062688A2

公开(公告)日：2014-04-24

申请号：PCT/US2013/065069

申请日：2013-10-15

Applicant: DIGIMARC CORPORATION

Inventor： SHARMA, Ravi, K. ,  BRADLEY, Brett, A. ,  BAI, Yang ,  THAGADUR SHIVAPPA, Shankar ,  KAMATH, Ajith ,  GURIJALA, Aparna ,  FILLER, Tomas ,  CUSHMAN, David, A.

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.

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：WO2015100430A1

公开(公告)日：2015-07-02

申请号：PCT/US2014/072397

申请日：2014-12-24

Applicant: DIGIMARC CORPORATION

Inventor： HOLUB, Vojtech ,  KAMATH, Ajith, M. ,  LONG, Scott, M. ,  BRADLEY, Brett, A. ,  SHARMA, Ravi, K. ,  THAGADUR, Shankar, Shivappa ,  ALATTAR, Osama, M. ,  BRUNK, Hugh, L. ,  GURIJALA, Aparna ,  RODRIGUEZ, Tony, F. ,  LYONG, Robert, G. ,  LORD, John, D. ,  DAVIS, Bruce, L.

IPC: G10L19/018 ,  G06F3/16

CPC classification number: G06F3/165 ,  G10L19/018 ,  G10L19/0212 ,  G10L25/09 ,  G10L25/21

Abstract: Methods and arrangements involving electronic devices, such as smartphones, tablet computers, wearable devices, etc., are disclosed. One arrangement involves a low-power processing technique for discerning cues from audio input. Another involves a technique for detecting audio activity based on the Kullback-Liebler divergence (KLD) (or a modified version thereof) of the audio input. Still other arrangements concern techniques for managing the manner in which policies are embodied on an electronic device. Others relate to distributed computing techniques. A great variety of other features are also detailed.

Abstract translation: 公开了涉及电子设备（例如智能电话，平板电脑，可穿戴设备等）的方法和布置。 一种布置涉及用于从音频输入识别提示的低功率处理技术。 另一个涉及基于音频输入的Kullback-Liebler发散（KLD）（或其修改版本）来检测音频活动的技术。 还有一些安排涉及管理电子设备上的政策体现方式的技术。 其他涉及分布式计算技术。 还有各种各样的其他功能。