公开(公告)号：US10546590B2

公开(公告)日：2020-01-28

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 ,  Aparna Gurijala

IPC: G10L19/00 ,  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：US20190261914A1

公开(公告)日：2019-08-29

申请号：US16289167

申请日：2019-02-28

Applicant: Digimarc Corporation

Inventor： Bruce L. Davis ,  Tony F. Rodriguez ,  Alastair M. Reed ,  John F. Stach ,  Geoffrey B. Rhoads ,  William Y. Conwell ,  Shankar Thagadur Shivappa ,  Ravi K Sharma ,  Richard F. Gibson

IPC: A61B5/00 ,  G06F16/248 ,  G16H50/20 ,  G16H40/67 ,  A61B5/103 ,  G06F16/245 ,  G16H50/70 ,  G06T5/40 ,  G06T7/00 ,  G10L19/018

Abstract: Reference imagery of dermatological conditions is compiled in a crowd-sourced database (contributed by clinicians and/or the lay public), together with associated diagnosis information. A user later submits a query image to the system (e.g., captured with a smartphone). Image-based derivatives for the query image are determined (e.g., color histograms, FFT-based metrics, etc.), and are compared against similar derivatives computed from the reference imagery. This comparison identifies diseases that are not consistent with the query image, and such information is reported to the user. Depending on the size of the database, and the specificity of the data, 90% or more of candidate conditions may be effectively ruled-out, possibly sparing the user from expensive and painful biopsy procedures, and granting some peace of mind (e.g., knowledge that an emerging pattern of small lesions on a forearm is probably not caused by shingles, bedbugs, malaria or AIDS). A great number of other features and arrangements are also detailed.

公开(公告)号：US20160378427A1

公开(公告)日：2016-12-29

申请号：US15192925

申请日：2016-06-24

Applicant: Digimarc Corporation

Inventor： Ravi K. Sharma ,  Shankar Thagadur Shivappa ,  Osama M. Alattar ,  Brett A. Bradley ,  Scott M. Long ,  Ajith M. Kamath ,  Vojtech Holub ,  Hugh L. Brunk ,  Robert G. Lyons ,  Aparna R. Gurijala

IPC: G06F3/16 ,  G10L19/02 ,  G10L19/018

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。 还有一些安排涉及用于管理在电子设备上实施策略的方式的技术。 其他涉及到分布式计算技术。 还详细介绍了各种各样的其他功能。

公开(公告)号：US20150005640A1

公开(公告)日：2015-01-01

申请号：US14283072

申请日：2014-05-20

Applicant: Digimarc Corporation

Inventor： Bruce L. Davis ,  Tony F. Rodriguez ,  Alastair M. Reed ,  John Stach ,  Geoffrey B. Rhoads ,  William Y. Conwell ,  Shankar Thagadur Shivappa ,  Ravi K. Sharma ,  Richard F. Gibson

IPC: A61B5/00

CPC classification number: A61B5/441 ,  A61B5/0075 ,  A61B5/0077 ,  A61B5/1032 ,  A61B5/1034 ,  A61B5/444 ,  A61B5/445 ,  A61B5/4806 ,  A61B5/6898 ,  A61B5/7246 ,  A61B5/7278 ,  A61B5/7282 ,  A61B5/7425 ,  A61B5/743 ,  A61B5/7485 ,  A61B2576/02 ,  G06F16/245 ,  G06F16/248 ,  G06F19/00 ,  G06F19/3418 ,  G06T5/40 ,  G06T7/0012 ,  G06T2207/30088 ,  G10L19/018 ,  G16H40/67 ,  G16H50/20 ,  G16H50/70 ,  Y02A90/26

Abstract: In one particular arrangement, a smartphone camera is moved by a user to capture dermatologic imagery from a variety of viewpoints. When the user thereafter holds the phone in a particular pose (e.g., with the display inclined upwardly, and with a display edge oriented substantially horizontally), the device switches to a display mode—presenting information derived from the earlier-captured dermatologic imagery. The device thus switches automatically between data collection and data presentation modes, based on pose and motion. A great variety of other features and arrangements are also detailed.

Abstract translation: 在一个特定的布置中，智能相机由用户移动以从各种观点捕获皮肤病学图像。 当用户此后将电话保持在特定姿势（例如，当显示器向上倾斜并且显示边缘基本上水平地定向时）时，设备切换到从早期捕获的皮肤病图像导出的显示模式呈现信息。 因此，设备基于姿态和运动在数据收集和数据呈现模式之间自动切换。 还详细介绍了各种各样的其他功能和安排。

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：US11183198B2

公开(公告)日：2021-11-23

申请号：US16751629

申请日：2020-01-24

Applicant: Digimarc Corporation

Inventor： Tomas Filler ,  Shankar Thagadur Shivappa

IPC: G10L19/00 ,  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：US10459685B2

公开(公告)日：2019-10-29

申请号：US15893127

申请日：2018-02-09

Applicant: Digimarc Corporation

Inventor： Ravi K. Sharma ,  Shankar Thagadur Shivappa ,  Osama M. Alattar ,  Brett A. Bradley ,  Scott M. Long ,  Ajith M. Kamath ,  Vojtech Holub ,  Hugh L. Brunk ,  Robert G. Lyons ,  Aparna R. Gurijala

IPC: G06F17/00 ,  G06F3/16 ,  G10L19/018 ,  G10L19/02 ,  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.

公开(公告)号：US10043527B1

公开(公告)日：2018-08-07

申请号：US15213335

申请日：2016-07-18

Applicant: Digimarc Corporation

Inventor： Aparna R. Gurijala ,  Shankar Thagadur Shivappa ,  Ravi K. Sharma ,  Brett A. Bradley

IPC: G10L19/025 ,  G01L19/02 ,  G10L19/018 ,  G10L19/26 ,  G10L21/007 ,  G10L21/0208 ,  G10L19/02

Abstract: A method for generating a psychoacoustic model from an audio signal transforms a block of samples of an audio signal into a frequency spectrum comprising frequency components. From this frequency spectrum, it derives group masking energies. These group masking energies each correspond to a group of neighboring frequency components in the frequency spectrum. For a group of frequency components, the method allocates the group masking energy to the frequency components in the group in proportion to energy of the frequency components within the group to provide adapted mask energies for the frequency components within the group, the adapted mask energies providing masking thresholds for the psychoacoustic model of the audio signal.

公开(公告)号：US09905233B1

公开(公告)日：2018-02-27

申请号：US14821435

申请日：2015-08-07

Applicant: Digimarc Corporation

Inventor： Shankar Thagadur Shivappa ,  Tony F. Rodriguez ,  Kurt M. Eaton

IPC: G06F17/00 ,  G10L19/018 ,  G06F21/16 ,  G06T1/00 ,  H04N21/8358

CPC classification number: G10L19/018 ,  G06F21/16 ,  G06T1/0071 ,  H04N21/8358

Abstract: The present disclosure relates generally to signal processing techniques for content signals such as audio, images and video signals. More particularly, the present disclosure relates to processing content signals to facilitate recognition of ambient content signals using digital watermarks and/or digital fingerprints.

公开(公告)号：US09891883B2

公开(公告)日：2018-02-13

申请号：US15192925

申请日：2016-06-24

Applicant: Digimarc Corporation

Inventor： Ravi K. Sharma ,  Shankar Thagadur Shivappa ,  Osama M. Alattar ,  Brett A. Bradley ,  Scott M. Long ,  Ajith M. Kamath ,  Vojtech Holub ,  Hugh L. Brunk ,  Robert G. Lyons ,  Aparna R. Gurijala

IPC: G06F17/00 ,  G06F3/16 ,  G10L19/018 ,  G10L19/02 ,  G10L25/09 ,  G10L25/21

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.