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    Light-based detection for acoustic applications
    11.
    发明专利
    Light-based detection for acoustic applications 未知

    公开(公告)号：AU2015268658A1

    公开(公告)日：2016-01-07

    申请号：AU2015268658

    申请日：2015-12-11

    Applicant: ALIPHCOM

    Inventor： BURNETT GREGORY C

    IPC: G01N21/17

    Abstract: H:\kmh\Interwoven\NRPortbl\DCC\KMH\9078889 Ldocx-11/12/2015 A light-based skin contact detector is described, including a boot having an index of refraction less than or equal to another index of refraction associated with skin at a frequency of light, a light emitter and detector coupled to the boot and configured to measure an amount of light energy reflected by an interface of the boot, and a digital signal processor configured to detect a change in the amount of light energy reflected by the interface. Embodiments relate to methods for detecting skin contact by measuring an amount of energy reflected by an interface when a boot is not in contact with skin, measuring another amount of energy reflected by another interface when the boot is in contact with the skin, and detecting a change between the amount of energy and the another amount of energy using a digital signal processor. Fig. 3

    Light-based detection for acoustic applications
    12.
    发明专利
    Light-based detection for acoustic applications 未知

    公开(公告)号：AU2012229071A1

    公开(公告)日：2013-10-17

    申请号：AU2012229071

    申请日：2012-03-15

    Applicant: ALIPHCOM

    Inventor： BURNETT GREGORY C

    IPC: H04B10/00

    Abstract: A light-based skin contact detector is described, including a boot having an index of refraction less than or equal to another index of refraction associated with skin at a frequency of light, a light emitter and detector coupled to the boot and configured to measure an amount of light energy reflected by an interface of the boot, and a digital signal processor configured to detect a change in the amount of light energy reflected by the interface. Embodiments relate to methods for detecting skin contact by measuring an amount of energy reflected by an interface when a boot is not in contact with skin, measuring another amount of energy reflected by another interface when the boot is in contact with the skin, and detecting a change between the amount of energy and the another amount of energy using a digital signal processor.

    Vibration sensor and acoustic voice activity detection system (VADs) for use with electronic systems
    13.
    发明专利
    Vibration sensor and acoustic voice activity detection system (VADs) for use with electronic systems 未知

    公开(公告)号：AU2011248283A1

    公开(公告)日：2012-11-29

    申请号：AU2011248283

    申请日：2011-05-03

    Applicant: ALIPHCOM INC

    Inventor： JING ZHINIAN ,  PETIT NICOLAS ,  BURNETT GREGORY C

    IPC: H04R29/00

    Abstract: A voice activity detector (VAD) combines the use of an acoustic VAD and a vibration sensor VAD as appropriate to the conditions a host device is operated. The VAD includes a first detector receiving a first signal and a second detector receiving a second signal. The VAD includes a first VAD component coupled to the first and second detectors. The first VAD component determines that the first signal corresponds to voiced speech when energy resulting from at least one operation on the first signal exceeds a first threshold. The VAD includes a second VAD component coupled to the second detector. The second VAD component determines that the second signal corresponds to voiced speech when a ratio of a second parameter corresponding to the second signal and a first parameter corresponding to the first signal exceeds a second threshold.

    MICROPHONE AND VOICE ACTIVITY DETECTION (VAD) CONFIGURATIONSFOR USE WITH COMMUNICATION SYSTEMS
    16.
    发明专利
    MICROPHONE AND VOICE ACTIVITY DETECTION (VAD) CONFIGURATIONSFOR USE WITH COMMUNICATION SYSTEMS 未知

    公开(公告)号：CA2479758A1

    公开(公告)日：2003-10-09

    申请号：CA2479758

    申请日：2003-03-27

    Applicant: ALIPHCOM

    Inventor： EINUADI ANDREW E ,  ASSEILY ALEXANDER M ,  PETIT NICOLAS J ,  BURNETT GREGORY C

    IPC: H04R1/40 ,  G10L11/02 ,  G10L25/93 ,  H04M1/00 ,  H04R3/00 ,  G10L21/02 ,  H04R1/46

    Abstract: Communication systems are described, including both portable handset and headset devices, which use a number of microphone configurations to receive acoustic signals of an environment. The microphone configurations include, f or example, a two-microphone array including two unidirectional microphones, an d a two-microphone array including one unidirectional microphone and one omnidirectional microphone. The communication systems also include Voice Activity Detection (VAD) devices to provide information of human voicing activity. Components of the communications systems receive the acoustic signals and voice activity signals and, in response, automatically generate control signals from data of the voice activity signals. Components of the communication systems use the control signals to automatically select a denoising method appropriate to data of frequency subbands of the acoustic signals. The selected denoising method is applied to the acoustic signals to generate denoised acoustic signals when the acoustic signal includes speech (101) and noise (102).

    DETECTING VOICED AND UNVOICED SPEECH USING BOTH ACOUSTIC ANDNONACOUSTIC SENSORS
    17.
    发明专利
    DETECTING VOICED AND UNVOICED SPEECH USING BOTH ACOUSTIC ANDNONACOUSTIC SENSORS 未知

    公开(公告)号：CA2448669A1

    公开(公告)日：2002-12-05

    申请号：CA2448669

    申请日：2002-05-30

    Applicant: ALIPHCOM

    Inventor： BURNETT GREGORY C

    IPC: G10L25/93 ,  G10L15/02 ,  G10L15/20 ,  H04R3/00 ,  G10L15/00

    Abstract: Systems and methods are provided for detecting voiced and unvoiced speech in acoustic signals having varying levels of background noise. The systems (Fig . 3) receive acoustic signals at two microphones (Mic 1, Mic 2), and generate difference parameters between the acoustic signals received at each of the t wo microphones (Mic 1, Mic 2). The difference parameters are representative of the relative difference in signal gain between portions of the receive acoustic signals. The systems identify information of the acoustic signals a s unvoiced speech when the difference parameters exceed a first threshold, and identify information of the acoustic signals as voiced speech when the difference parameters exceed a second threshold. Further, embodiments of the systems include non-acoustic sensors (20) that receive physiological information to aid identifying voiced speech.

    VOICE ACTIVITY DETECTION (VAD) DEVICES AND METHODS FOR USE WITH NOISE SUPPRESSION SYSTEMS
    18.
    发明申请
    VOICE ACTIVITY DETECTION (VAD) DEVICES AND METHODS FOR USE WITH NOISE SUPPRESSION SYSTEMS 审中-公开
    语音活动检测（VAD）装置和使用噪声抑制系统的方法

    公开(公告)号：WO03096031A9

    公开(公告)日：2004-06-10

    申请号：PCT/US0306893

    申请日：2003-03-05

    Applicant: ALIPHCOM

    Inventor： BURNETT GREGORY C ,  PETIT NICOLAS J ,  ASSEILY ALEXANDER M ,  EINUADI ANDREW E

    IPC: G10L15/20 ,  G10L21/0216 ,  G10L25/78 ,  G10L25/93 ,  G10L21/02

    CPC classification number: G10L25/93 ,  G10L2021/02165 ,  G10L2025/783

    Abstract: Voice Activity Detection (VAD) devices, systems and methods are described for use with signal processing systems to denoise acoustic signals. Components of a signal processing system and/or VAD system receive acoustic signals and voice activity signals. Control signals are automatically generated from data of the voice activity signals. Components of the signal processing system and/or VAD system use the control signals to automatically select a denoising method appropriate to data of frequency subbands of the acoustic signals. The selected denoising method is applied to the acoustic signals to generate denoised acoustic signals.

    Abstract translation: 描述语音活动检测（VAD）设备，系统和方法用于信号处理系统去噪声信号。 信号处理系统和/或VAD系统的组件接收声信号和语音活动信号。 控制信号根据语音活动信号的数据自动生成。 信号处理系统和/或VAD系统的组件使用控制信号来自动选择适合于声信号的频率子带的数据的去噪方法。 将所选择的去噪方法应用于声信号以产生去噪的声信号。

    ADVANCED SPEECH ENCODING DUAL MICROPHONE CONFIGURATION (DMC)
    20.
    发明申请
    ADVANCED SPEECH ENCODING DUAL MICROPHONE CONFIGURATION (DMC) 审中-公开
    高级语音编码双麦克风配置（DMC）

    公开(公告)号：WO2008148048A3

    公开(公告)日：2009-07-30

    申请号：PCT/US2008064773

    申请日：2008-05-23

    Applicant: ALIPHCOM INC ,  BURNETT GREGORY C

    Inventor： BURNETT GREGORY C

    IPC: H04R9/08

    CPC classification number: H04R3/005 ,  H04R2410/05

    Abstract: A microphone array is described for use in ultra-high acoustical noise environments. The microphone array includes two directional close-talk microphones. The two microphones are separated by a short distance so that one microphone picks up more speech than the other. The microphone array can be used along with an adaptive noise removal program to remove a significant portion of noise from a speech signal of interest

    Abstract translation: 麦克风阵列被描述用于超高声学噪声环境。 麦克风阵列包括两个方向性的关键麦克风。 两个麦克风分开很短的距离，使一个麦克风比另一个麦克风拾取更多的语音。 麦克风阵列可以与自适应噪声去除程序一起使用以从感兴趣的语音信号中去除大部分噪声

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