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公开(公告)号：US10397697B2
公开(公告)日：2019-08-27
申请号：US15062064
申请日：2016-03-05
Applicant: ClearOne Inc.
Inventor： David K. Lambert , Russell S. Ericksen , Derek L. Graham
Abstract: This disclosure describes a band-limited beamforming microphone array made by the augmenting a beamforming microphone array with non-beamforming microphones. The band-limited beamforming microphone array includes a plurality of first microphones configured as a beamforming microphone array to resolve first audio input signals within a first frequency range. The band-limited array further includes one or more additional microphone configured to resolve second audio input signals within a restricted second frequency range such that the additional microphones are coupled to the beamforming microphone array. In addition, the band-limited array includes augmented beamforming that processes audio signals from the beamforming microphone array and the additional microphone(s), where the augmented beamforming combines the beamformed first audio input signal with the resolved and restricted second audio input signals to create an audio signal within a band-limited frequency range.
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公开(公告)号：US20160302002A1
公开(公告)日：2016-10-13
申请号：US15062064
申请日：2016-03-05
Applicant: ClearOne Inc.
Inventor： David K. Lambert , Russell S. Ericksen , Derek L. Graham
CPC classification number: H04R1/406 , H04R1/08 , H04R1/2876 , H04R3/005 , H04R3/04 , H04R17/02 , H04R31/006 , H04R2201/021 , H04R2420/07 , H04R2430/21 , H04R2430/23
Abstract: This disclosure describes a band-limited beamforming microphone array made by augmenting a beamforming microphone array with non-beamforming microphones that includes: a plurality of first microphones configured as a beamforming microphone array to resolve first audio input signals within a first frequency range; one or more additional microphones configured to resolve second audio input signals within a restricted second frequency range; and an augmented beamforming module that includes a processor that executes software program steps to: receive the resolved first audio signals from the beamforming microphone array; receive the resolved and restricted second audio input signals; perform beamforming on the received and resolved first audio input signal; and combine the beamformed first audio input signal with the resolved and restricted second audio input signals to create an audio signal within a band-limited frequency range.
Abstract translation: 本公开描述了通过用非波束形成麦克风增强波束成形麦克风阵列而制成的带限波束成形麦克风阵列，其包括：配置成波束成形麦克风阵列的多个第一麦克风，以分析第一频率范围内的第一音频输入信号; 一个或多个附加麦克风被配置为在受限的第二频率范围内解析第二音频输入信号; 以及增强波束形成模块，其包括执行软件程序步骤的处理器：从所述波束成形麦克风阵列接收所解决的第一音频信号; 接收解决和限制的第二音频输入信号; 对接收和解析的第一音频输入信号执行波束成形; 并且将波束形成的第一音频输入信号与分辨和受限的第二音频输入信号组合以在频带限制频率范围内创建音频信号。
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公开(公告)号：US11240598B2
公开(公告)日：2022-02-01
申请号：US16536456
申请日：2019-08-09
Applicant: ClearOne, Inc.
Inventor： David K. Lambert , Russell S. Ericksen , Derek L. Graham
IPC: H04R1/40 , H04R1/08 , G10L21/0232 , H04R29/00 , H04R3/00 , H04R17/02 , H04R3/04 , H04R1/28 , H04R31/00 , G10L21/0208
Abstract: This disclosure describes an apparatus and method of an embodiment of an invention that is a band-limited beamforming microphone array with acoustic echo cancellation that includes: a plurality of first microphones configured as a beamforming microphone array to resolve first audio input signals within a first frequency range, the beamforming microphone array includes acoustic echo cancellation; one or more additional microphone(s) configured to resolve second audio input signals within a restricted second frequency range such that the additional microphone(s) are coupled to the beamforming microphone array; augmented beamforming that processes audio signals from the beamforming microphone array and the additional microphone(s).
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Patent Agency Ranking
4.发明授权Augmentation of a beamforming microphone array with non-beamforming microphones 有权具有非波束形成麦克风的波束成形麦克风阵列的增强公开(公告)号：US09294839B2
公开(公告)日：2016-03-22
申请号：US14276438
申请日：2014-05-13
Applicant: ClearOne Inc.
Inventor： David K. Lambert , Russell S. Ericksen , Derek Graham
CPC classification number: H04R1/406 , H04R1/08 , H04R1/2876 , H04R3/005 , H04R3/04 , H04R17/02 , H04R31/006 , H04R2201/021 , H04R2420/07 , H04R2430/21 , H04R2430/23
Abstract: Embodiments of the present disclosure include an apparatus (116) configured to perform beamforming on multiple audio input signals. The apparatus (116) includes a first plurality of microphones (302, 502) configured to resolve first audio input signals within a first frequency range. The apparatus (116) also includes at least one microphone (504) configured to resolve second audio input signals within a second frequency range. A lowest frequency in the first frequency range is greater than a lowest frequency in the second frequency range.
Abstract translation: 本公开的实施例包括被配置为在多个音频输入信号上执行波束成形的装置（116）。 该设备（116）包括被配置为在第一频率范围内解析第一音频输入信号的第一多个麦克风（302,502）。 设备（116）还包括配置成在第二频率范围内解析第二音频输入信号的至少一个麦克风（504）。 第一频率范围内的最低频率大于第二频率范围内的最低频率。
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公开(公告)号：US20170163434A1
公开(公告)日：2017-06-08
申请号：US15217303
申请日：2016-07-22
Applicant: ClearOne, Inc.
Inventor： Tracy A. Bathurst , Derek L. Graham , Michael Braithwaite , Russell S. Ericksen , Brett Harris , Sandeep Kalra , David K. Lambert , Peter H. Manley , Ashutosh Pandey , Bryan Shaw , Michael Tilelli , Paul Robert Bryson
CPC classification number: H04L12/1827 , G10L19/167 , H04L65/403 , H04L65/607 , H04L65/608 , H04M3/567 , H04M3/568 , H04M7/006 , H04N7/15 , H04R3/12 , H04S1/007 , H04S7/30 , H04S2400/11 , H04S2400/13 , H04S2400/15
Abstract: This disclosure describes a conferencing system with spatial rendering of audio data. The conferencing system includes a local conferencing device that includes a plurality of microphones, an audio encoder, and a spatial encoder that are associated with a local endpoint. The conferencing system further includes a remote conferencing device that includes a plurality of speakers, an audio decoder, and a spatial renderer that are associated with the remote endpoint. The spatial renderer is configured to superimpose a coordinate system for the plurality of speakers and a coordinate system for the plurality of microphones during spatial rendering of the audio data.
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6.发明申请AUGMENTATION OF A BEAMFORMING MICROPHONE ARRAY WITH NON-BEAMFORMING MICROPHONES 有权具有非波纹形成麦克风的波纹麦克风阵列的补充公开(公告)号：US20140341392A1
公开(公告)日：2014-11-20
申请号：US14276438
申请日：2014-05-13
Applicant: ClearOne Inc.
Inventor： David K. Lambert , Russell S. Ericksen , Derek Graham
IPC: H04R1/08
CPC classification number: H04R1/406 , H04R1/08 , H04R1/2876 , H04R3/005 , H04R3/04 , H04R17/02 , H04R31/006 , H04R2201/021 , H04R2420/07 , H04R2430/21 , H04R2430/23
Abstract: Embodiments of the present disclosure include an apparatus (116) configured to perform beamforming on multiple audio input signals. The apparatus (116) includes a first plurality of microphones (302, 502) configured to resolve first audio input signals within a first frequency range. The apparatus (116) also includes at least one microphone (504) configured to resolve second audio input signals within a second frequency range. A lowest frequency in the first frequency range is greater than a lowest frequency in the second frequency range.
Abstract translation: 本公开的实施例包括被配置为对多个音频输入信号执行波束成形的装置（116）。 该设备（116）包括被配置为在第一频率范围内解析第一音频输入信号的第一多个麦克风（302,502）。 设备（116）还包括配置成在第二频率范围内解析第二音频输入信号的至少一个麦克风（504）。 第一频率范围内的最低频率大于第二频率范围内的最低频率。
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公开(公告)号：US20250088795A1
公开(公告)日：2025-03-13
申请号：US18292543
申请日：2022-08-13
Applicant: ClearOne, Inc.
Inventor： Derek L. Graham , David K. Lambert , Russell S. Ericksen , Zeynep Hakimoglu
Abstract: This disclosure describes an invention that that mutes specific talkers using at least one beamforming microphone array 102 that is configured to generate N audio signals 108 where each audio signal is associated with a spatial pickup pattern 130, the microphone array(s) 102 are located in a room 200; a processor 104 and memory 105 operably coupled to the microphone array 102, the processor 104 configured to execute the following steps: (a) selectively mute or unmute an individual talker the room with a mute function 106 that controls whether to mute or unmute the individual talker T1-T7 that is picked up by one or more of the individual audio signals, the mute function 106 includes speech learning that learns to identify different talkers in real time to allow the mute function 106 to identify transitions from one talker to another talker in the room 200, (b) output an audio signal 110 based on the selective muting of the talkers T1-T7 in the room 200.
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公开(公告)号：US09843455B2
公开(公告)日：2017-12-12
申请号：US15217303
申请日：2016-07-22
Applicant: ClearOne, Inc.
Inventor： Tracy A. Bathurst , Derek L. Graham , Michael Braithwaite , Russell S. Ericksen , Bret Harris , Sandeep Kalra , David K. Lambert , Peter H. Manley , Ashutosh Pandey , Bryan Shaw , Michael Tilelli , Paul Robert Bryson
IPC: H04M11/00 , H04L12/18 , H04M3/56 , H04M7/00 , G10L19/16 , H04L29/06 , H04R3/12 , H04R5/00 , H04N7/15 , H04S1/00 , H04S7/00
CPC classification number: H04L12/1827 , G10L19/167 , H04L65/403 , H04L65/607 , H04L65/608 , H04M3/567 , H04M3/568 , H04M7/006 , H04N7/15 , H04R3/12 , H04S1/007 , H04S7/30 , H04S2400/11 , H04S2400/13 , H04S2400/15
Abstract: This disclosure describes a conferencing system with spatial rendering of audio data. The conferencing system includes a local conferencing device that includes a plurality of microphones, an audio encoder, and a spatial encoder that are associated with a local endpoint. The conferencing system further includes a remote conferencing device that includes a plurality of speakers, an audio decoder, and a spatial renderer that are associated with the remote endpoint. The spatial renderer is configured to superimpose a coordinate system for the plurality of speakers and a coordinate system for the plurality of microphones during spatial rendering of the audio data.
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