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    SYSTEM FOR AUDIO DISTRIBUTION INCLUDING NETWORK MICROPHONES FOR VOICE APPLICATIONS
    21.
    发明申请
    SYSTEM FOR AUDIO DISTRIBUTION INCLUDING NETWORK MICROPHONES FOR VOICE APPLICATIONS 审中-公开

    公开(公告)号：US20190103113A1

    公开(公告)日：2019-04-04

    申请号：US16207924

    申请日：2018-12-03

    Applicant: Crestron Electronics, Inc.

    Inventor： Mark LaBosco

    IPC: G10L15/22

    Abstract: Disclosed is a method for determining one or more spoken words, comprising: receiving acoustic audio signals at one or more microphones within a microphone system, and converting the same from acoustical energy signals into electrical audio signals and outputting them as microphone output audio signals; receiving the microphone output audio signals from the microphone device at a first input of an acoustic echo cancellation (AEC) device, and receiving a reference input signal at a second input of the AEC device; cancelling substantially all of the reference audio signal from the microphone output audio signal; and outputting the same as a corrected audio signal, and wherein the reference audio signal comprises an audio signal generated by an external audio system.

    System for audio distribution including network microphones for voice applications
    25.
    发明授权
    System for audio distribution including network microphones for voice applications 有权

    公开(公告)号：US11069350B2

    公开(公告)日：2021-07-20

    申请号：US16207924

    申请日：2018-12-03

    Applicant: Crestron Electronics, Inc.

    Inventor： Mark LaBosco

    IPC: G10L15/22 ,  G10L21/0208 ,  G10L15/30 ,  G06F3/16

    Abstract: Disclosed is a method for determining one or more spoken words, comprising: receiving acoustic audio signals at one or more microphones within a microphone system, and converting the same from acoustical energy signals into electrical audio signals and outputting them as microphone output audio signals; receiving the microphone output audio signals from the microphone device at a first input of an acoustic echo cancellation (AEC) device, and receiving a reference input signal at a second input of the AEC device; cancelling substantially all of the reference audio signal from the microphone output audio signal; and outputting the same as a corrected audio signal, and wherein the reference audio signal comprises an audio signal generated by an external audio system.

    Millimeter wave sensor used to optimize performance of a beamforming microphone array
    26.
    发明授权
    Millimeter wave sensor used to optimize performance of a beamforming microphone array 有权

    公开(公告)号：US11019426B2

    公开(公告)日：2021-05-25

    申请号：US16801964

    申请日：2020-02-26

    Applicant: Crestron Electronics, Inc.

    Inventor： Mark LaBosco

    IPC: H04R3/00 ,  G10L21/02 ,  H04R1/40 ,  H04R29/00 ,  G06F3/01 ,  G10L21/0232 ,  G10L21/0208

    Abstract: A beamforming microphone array is described herein, comprising: a plurality of microphones each of which is adapted to receive an acoustic audio signal and convert the same to a microphone (mic) audio signal; a wave sensor system adapted to determine locations of one or more people within a predetermined area about the beamforming microphone array and output the same as user location data signal; and an adaptive beamforming circuit adapted to receive the user location data signal and plurality of mic audio signals and perform adaptive beamforming on the plurality of mic audio signals that takes into account the received user location data signal to adapt one or more beams to acquire sound from one or more specific locations in the predetermined area.

    ADAPTIVE BEAMFORMING MICROPHONE METADATA TRANSMISSION TO COORDINATE ACOUSTIC ECHO CANCELLATION IN AN AUDIO CONFERENCING SYTEM
    27.
    发明申请
    ADAPTIVE BEAMFORMING MICROPHONE METADATA TRANSMISSION TO COORDINATE ACOUSTIC ECHO CANCELLATION IN AN AUDIO CONFERENCING SYTEM 审中-公开

    公开(公告)号：US20200265859A1

    公开(公告)日：2020-08-20

    申请号：US16790377

    申请日：2020-02-13

    Applicant: Crestron Electronics, Inc.

    Inventor： Mark LaBosco ,  Dennis Fink ,  Mitchell Walker ,  Alex Parisi ,  Matthew King

    IPC: G10L21/0232 ,  H04R1/40 ,  H04R3/00 ,  H04L29/06

    Abstract: An audio processing device for use in a network connected audio conferencing system is provided, comprising: a network microphone array comprising two or more microphones (mics) and a beamforming circuit, wherein the network mic array is adapted to acquire acoustic audio signals, convert the same to electric audio signals, perform audio beamforming on the electric audio signals, and output a digital combined beamforming circuit output signal that comprises a first signal part and a second signal part, and wherein the first signal part comprises a first set of digital bits that comprises an active beam index, and wherein the active beam index encodes a selected beam position out of a possible N beam positions, and wherein the second signal part comprises a second set of digital bits that comprises a beamformed audio signal; a receiver adapted to receive the digital combined beamforming circuit output signal and split the same into the first signal part and the second signal part; a plurality of acoustic echo cancellation filter devices, each of which are adapted to receive the second signal part and a far end reference audio signal from a far end audio processing device, and perform acoustic echo cancellation on the beamformed audio signal in view of the far end audio signal; and an AEC filter circuit controller adapted to receive the first signal part, decipher the active beam index encoded in the first beamformed audio signal part to determine which of the N beam positions is active, and select a corresponding one of the plurality of acoustic echo cancellation filter devices based on the active one of N beam positions to generate an output audio signal from the audio processing device to be transmitted to the far end audio processing device.

    Dual sourcing power over ethernet on a single data path
    28.
    发明授权
    Dual sourcing power over ethernet on a single data path 有权

    公开(公告)号：US10476684B2

    公开(公告)日：2019-11-12

    申请号：US15172245

    申请日：2016-06-03

    Applicant: Crestron Electronics, Inc.

    Inventor： John Hartnett ,  Mark LaBosco

    IPC: H04L12/10

    Abstract: Described herein is a data communication system using power over Ethernet (PoE) for power distribution, comprising a first and second powered device (PD), each of which is adapted to communicate with each other through an Ethernet data path (EDP) and is further adapted to receive direct current (DC) power using a PoE protocol, and a mid-span power injection device (MSPID) adapted to provide a communications interface such that data communications passes through the MSPID to and from each of the PDs, and wherein the MSPID is further adapted to provide a first DC power to only the first PD using the EDP, and to provide a second DC power to only the second PD using the EDP.

    Speaker Protection for Surround Sound Systems
    30.
    发明申请
    Speaker Protection for Surround Sound Systems 有权
    扬声器保护环绕声系​​统

    公开(公告)号：US20160234596A1

    公开(公告)日：2016-08-11

    申请号：US14615180

    申请日：2015-02-05

    Applicant: CRESTRON ELECTRONICS, INC.

    Inventor： Mark LaBosco ,  David Burke ,  Alexander Marra

    IPC: H04R3/00 ,  H04N5/60 ,  H03G1/00

    CPC classification number: H04R3/007 ,  H03G7/002 ,  H04N5/602 ,  H04N5/607 ,  H04R2430/01

    Abstract: An audio/video receiver configured to limit the power delivered to its speakers based on real time calculations. First, power delivered to the speakers is limited to the power rating of the speakers during short durations. Second, a secondary longer time constant Root-Mean-Square (RMS) detector limits sustained power to the speakers for a predetermined fraction of the peak power rating.

    Abstract translation: 配置为基于实时计算限制传递给其扬声器的功率的音频/视频接收器。 首先，扬声器的功率限制在短时间内扬声器的额定功率。 第二，次级更长时间常数均方根（RMS）检测器限制扬声器的持续功率达到峰值功率额定值的预定分数。

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