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公开(公告)号：US20240096132A1
公开(公告)日：2024-03-21
申请号：US18519716
申请日：2023-11-27
Applicant: Analog Devices, Inc.
Inventor： Atulya YELLEPEDDI , Kaushal Sanghai , John Robert McCarty , Brian C. Donnelly , Johannes Traa , Nicolas Le Dortz
CPC classification number: G06V40/172 , G06T7/70 , H04S7/30 , G06T2207/10016 , G06T2207/30201 , G06T2210/12
Abstract: Far field devices typically rely on audio only for enabling user interaction and involve only audio processing. Adding a vision-based modality can greatly improve the user interface of far field devices to make them more natural to the user. For instance, users can look at the device to interact with it rather than having to repeatedly utter a wakeword. Vision can also be used to assist audio processing, such as to improve the beamformer. For instance, vision can be used for direction of arrival estimation. Combining vision and audio can greatly enhance the user interface and performance of far field devices.
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公开(公告)号：US11686699B2
公开(公告)日：2023-06-27
申请号：US17389202
申请日：2021-07-29
Applicant: Analog Devices, Inc.
Inventor： Hemtej Gullapalli , Omer Tanovic , Johannes Traa , Erfan Soltanmohammadi
CPC classification number: G01N27/221 , G01R31/007 , H01M10/425 , H01M2010/4271
Abstract: The battery monitoring techniques described herein may be used for detection of battery anomalies or faults. Also, the battery monitoring techniques described herein may be used to generate estimates of total battery capacity. The battery monitoring techniques may employ an alternating current frequency response (ACFR) of the battery. The ACFR response of the battery may be used to detect anomalies and/or estimate a total capacity of the battery.
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公开(公告)号：US20150312663A1
公开(公告)日：2015-10-29
申请号：US14440211
申请日：2013-09-17
Applicant: ANALOG DEVICES, INC.
Inventor： Johannes Traa , Paris Smaragdis
CPC classification number: H04R1/08 , G10L21/0272 , G10L21/028 , G10L21/0308 , G10L25/18 , G10L2021/02161 , H04R3/04 , H04R2430/00
Abstract: An approach to separating multiple sources exploits the observation that each source is associated with a linear-circular phase characteristic in which the relative phase between pairs of microphones follows a linear (modulo) pattern. In some examples, a modified RANSAC (Random Sample Consensus) approach is used to identify the frequency/phase samples that are attributed to each source. In some examples, either in combination with the modified RANSAC approach or using other approaches, a wrapped variable representation is used to represent a probability density of phase, thereby avoiding a need to “unwrap” phase in applying probabilistic techniques to estimating delay between sources.
Abstract translation: 分离多个源的方法利用每个源与线性圆相位特性相关联的观察结果，其中麦克风对之间的相对相位遵循线性（模）模式。 在一些示例中，使用经修改的RANSAC（随机样本共识）方法来识别归因于每个源的频率/相位样本。 在一些示例中，结合修改的RANSAC方法或使用其他方法，使用包装的可变表示来表示相位的概率密度，从而避免在应用概率技术来估计源之间的延迟时需要“展开”相位。
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Patent Agency Ranking
公开(公告)号：US20150086038A1
公开(公告)日：2015-03-26
申请号：US14494838
申请日：2014-09-24
Applicant: Analog Devices, Inc.
Inventor： Noah Stein , Johannes Traa , David Wingate
IPC: H04R1/32
CPC classification number: H04R1/326 , G10L21/0272 , G10L2021/02166 , H04R1/406 , H04R2201/003 , H04R2430/21
Abstract: An approach to processing of acoustic signals acquired at a user's device include one or both of acquisition of parallel signals from a set of closely spaced microphones, and use of a multi-tier computing approach in which some processing is performed at the user's device and further processing is performed at one or more server computers in communication with the user's device. The acquired signals are processed using time versus frequency estimates of both energy content as well as direction of arrival. In some examples, a non-negative matrix or tensor factorization approach is used to identify multiple sources each associated with a corresponding direction of arrival of a signal from that source. In some examples, data characterizing direction of arrival information is passed from the user's device to a server computer where direction-based processing is performed.
Abstract translation: 处理在用户设备处获取的声学信号的方法包括从一组紧密间隔的麦克风中获取并行信号的一个或两个，以及使用多层计算方法，其中在用户设备处进行一些处理 在与用户的设备通信的一个或多个服务器计算机上执行处理。 所获取的信号使用能量含量以及到达方向的时间与频率估计来处理。 在一些示例中，使用非负矩阵或张量因子分解方法来识别每个与来自该源的信号的相应到达方向相关联的多个源。 在一些示例中，表征到达信息方向的数据从用户设备传递到执行方向处理的服务器计算机。
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公开(公告)号：US12073048B2
公开(公告)日：2024-08-27
申请号：US17693644
申请日：2022-03-14
Applicant: Analog Devices, Inc.
Inventor： Atulya Yellepeddi , Harshvardhan Bhatia , Jiayi Jiang , Reuben Harry Cohn-Gordon , Johannes Traa , Sai Kulkarni
IPC: G06F3/044
CPC classification number: G06F3/0443 , G06F2203/04101 , G06F2203/04104
Abstract: A device for proximity detection includes multiple electrodes and an impedance sensor coupled to the electrodes. The impedance sensor may include three impedance elements and a sensing element arranged in a bridge configuration to offset an external impedance and detect changes to impedance in the environment of the device. The device further includes a proximity detector that obtains sensor measurements between multiple subsets of electrodes and analyzes the sensor measurements to determine whether an object is approaching the device.
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公开(公告)号：US11830289B2
公开(公告)日：2023-11-28
申请号：US16898721
申请日：2020-06-11
Applicant: Analog Devices, Inc.
Inventor： Atulya Yellepeddi , Kaushal Sanghai , John Robert McCarty , Brian C. Donnelly , Nicolas Le Dortz , Johannes Traa
CPC classification number: G06V40/172 , G06T7/70 , H04S7/30 , G06T2207/10016 , G06T2207/30201 , G06T2210/12
Abstract: Far field devices typically rely on audio only for enabling user interaction and involve only audio processing. Adding a vision-based modality can greatly improve the user interface of far field devices to make them more natural to the user. For instance, users can look at the device to interact with it rather than having to repeatedly utter a wakeword. Vision can also be used to assist audio processing, such as to improve the beamformer. For instance, vision can be used for direction of arrival estimation. Combining vision and audio can greatly enhance the user interface and performance of far field devices.
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公开(公告)号：US20220091062A1
公开(公告)日：2022-03-24
申请号：US17389202
申请日：2021-07-29
Applicant: Analog Devices, Inc.
Inventor： Hemtej Gullapalli , Omer Tanovic , Johannes Traa , Erfan Soltanmohammadi
Abstract: The battery monitoring techniques described herein may be used for detection of battery anomalies or faults. Also, the battery monitoring techniques described herein may be used to generate estimates of total battery capacity. The battery monitoring techniques may employ an alternating current frequency response (ACFR) of the battery. The ACFR response of the battery may be used to detect anomalies and/or estimate a total capacity of the battery.
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公开(公告)号：US09420368B2
公开(公告)日：2016-08-16
申请号：US14494838
申请日：2014-09-24
Applicant: Analog Devices, Inc.
Inventor： Noah Stein , Johannes Traa , David Wingate
IPC: H04R1/32 , G10L21/0272 , H04R1/40 , G10L21/0216
CPC classification number: H04R1/326 , G10L21/0272 , G10L2021/02166 , H04R1/406 , H04R2201/003 , H04R2430/21
Abstract: An approach to processing of acoustic signals acquired at a user's device include one or both of acquisition of parallel signals from a set of closely spaced microphones, and use of a multi-tier computing approach in which some processing is performed at the user's device and further processing is performed at one or more server computers in communication with the user's device. The acquired signals are processed using time versus frequency estimates of both energy content as well as direction of arrival. In some examples, a non-negative matrix or tensor factorization approach is used to identify multiple sources each associated with a corresponding direction of arrival of a signal from that source. In some examples, data characterizing direction of arrival information is passed from the user's device to a server computer where direction-based processing is performed.
Abstract translation: 处理在用户设备处获取的声学信号的方法包括从一组紧密间隔的麦克风中获取并行信号的一个或两个，以及使用多层计算方法，其中在用户设备处进行一些处理 在与用户的设备通信的一个或多个服务器计算机上执行处理。 所获取的信号使用能量含量以及到达方向的时间与频率估计来处理。 在一些示例中，使用非负矩阵或张量因子分解方法来识别每个与来自该源的信号的相应到达方向相关联的多个源。 在一些示例中，表征到达信息方向的数据从用户设备传递到执行方向处理的服务器计算机。
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