VOICE CONTROL SYSTEM AND VOICE CONTROL METHOD FOR AUTOMATIC DOOR

    公开(公告)号:US20230215434A1

    公开(公告)日:2023-07-06

    申请号:US18083684

    申请日:2022-12-19

    发明人: SHUN-CHIEH CHANG

    摘要: A voice control system and a voice control method for an automatic door are provided. The voice control system includes a sound detection device, a storage device, a first determination circuit, a second determination circuit and a control circuit. The sound detection device detects a sound signal of a sound source, the storage device includes a voiceprint database that includes reference voiceprint features. The first determination circuit analyzes a voiceprint feature of the sound signal and compares the voiceprint feature with the reference voiceprint features. The second determination circuit determines whether a velocity of the sound source falls within a reference speed range according to a frequency variation of the sound signal that matches one of the voiceprint features. In response to the velocity of the sound source within the reference speed range, the control circuit controls the automatic door to be in an open state.

    Active noise attenuating device
    2.
    发明授权
    Active noise attenuating device 失效
    主动噪声衰减装置

    公开(公告)号:US5535283A

    公开(公告)日:1996-07-09

    申请号:US174004

    申请日:1993-12-28

    摘要: An active noise attenuating device applied to a draft duct of an air condition system including a microphone disposed in a propagation path of noise for detecting the noise, a loud speaker disposed in the noise propagation path, a control circuit for producing a control signal on the basis of the detection signal from the microphone, the control signal being supplied to the loud speaker so that the speaker produces an interference sound having the same amplitude as of the noise detected by the microphone and a phase opposite to the noise, at a control point in the noise propagation path, and a high pass filter for damping or cutting off a frequency component contained in the control signal and belonging to a low frequency range in which the loud speaker is unable to reproduce the interference sound.

    摘要翻译: 一种主动噪声衰减装置,其应用于包括设置在用于检测噪声的噪声传播路径中的麦克风的空调系统的通风管道,设置在噪声传播路径中的扬声器,控制电路,用于产生控制信号 基于来自麦克风的检测信号,控制信号被提供给扬声器,使得扬声器在控制点处产生具有与由麦克风检测到的噪声相同的幅度和与噪声相反的相位的干扰声音 以及高通滤波器,用于阻尼或切断包含在控制信号中并且属于该扬声器不能再现干扰声的低频范围的频率分量。

    APPARATUS AND METHOD FOR SOUND STAGE ENHANCEMENT

    公开(公告)号:US20180249268A1

    公开(公告)日:2018-08-30

    申请号:US15963916

    申请日:2018-04-26

    申请人: AMBIDIO, INC.

    IPC分类号: H04S1/00 H04R5/04 H04S5/00

    摘要: A method for processing an audio signal is performed at a computing device. The method includes the following steps: receiving a digital stereo audio input signal; extracting localization cues from the digital stereo audio input signal; generating a left-side component and a right-side component from the digital stereo audio input signal, at least partially, in accordance with the localization cues; performing crosstalk cancellation to the left-side component and the right-side component, respectively, to obtain a crosstalk-cancelled left-side component and a crosstalk-cancelled right-side component; and generating a digital stereo audio output signal including the crosstalk-cancelled left-side component and the crosstalk-cancelled right-side component.

    APPARATUS AND METHOD FOR SOUND STAGE ENHANCEMENT

    公开(公告)号:US20180310110A1

    公开(公告)日:2018-10-25

    申请号:US15965434

    申请日:2018-04-27

    申请人: AMBIDIO, INC.

    IPC分类号: H04S1/00 H04S5/00 H04R5/04

    摘要: A method for processing an audio signal is performed at a computing device. The method includes the following steps: receiving a digital stereo audio input signal; extracting localization cues from the digital stereo audio input signal; generating a left-side component and a right-side component from the digital stereo audio input signal, at least partially, in accordance with the localization cues; performing crosstalk cancellation to the left-side component and the right-side component, respectively, to obtain a crosstalk-cancelled left-side component and a crosstalk-cancelled right-side component; and generating a digital stereo audio output signal including the crosstalk-cancelled left-side component and the crosstalk-cancelled right-side component.

    APPARATUS AND METHOD FOR SOUND STAGE ENHANCEMENT

    公开(公告)号:US20180249269A1

    公开(公告)日:2018-08-30

    申请号:US15965421

    申请日:2018-04-27

    申请人: AMBIDIO, INC.

    IPC分类号: H04S1/00 H04R5/04 H04S5/00

    摘要: A method for processing an audio signal is performed at a computing device. The method includes the following steps: receiving a digital stereo audio input signal; extracting localization cues from the digital stereo audio input signal; generating a left-side component and a right-side component from the digital stereo audio input signal, at least partially, in accordance with the localization cues; performing crosstalk cancellation to the left-side component and the right-side component, respectively, to obtain a crosstalk-cancelled left-side component and a crosstalk-cancelled right-side component; and generating a digital stereo audio output signal including the crosstalk-cancelled left-side component and the crosstalk-cancelled right-side component.

    APPARATUS AND METHOD FOR SOUND STAGE ENHANCEMENT

    公开(公告)号:US20180247633A1

    公开(公告)日:2018-08-30

    申请号:US15965446

    申请日:2018-04-27

    申请人: AMBIDIO, INC.

    IPC分类号: G10K11/175 H04S7/00 H03G5/16

    摘要: A method for processing an audio signal is performed at a computing device. The method includes the following steps: receiving a digital stereo audio input signal; extracting localization cues from the digital stereo audio input signal; generating a left-side component and a right-side component from the digital stereo audio input signal, at least partially, in accordance with the localization cues; performing crosstalk cancellation to the left-side component and the right-side component, respectively, to obtain a crosstalk-cancelled left-side component and a crosstalk-cancelled right-side component; and generating a digital stereo audio output signal including the crosstalk-cancelled left-side component and the crosstalk-cancelled right-side component.

    ANTI-SNORING DEVICE BASED ON EXPANSION TYPE SILENCER

    公开(公告)号:US20240207086A1

    公开(公告)日:2024-06-27

    申请号:US18566905

    申请日:2022-04-06

    申请人: Ruifeng Sun

    发明人: Ruifeng Sun

    摘要: The present invention provides an anti-snoring device based on an expansion type silencer, and proposes the technical solution from the respective of eliminating the “effect” in the causality of snoring. The anti-snoring device comprises an expansion chamber, a tube, and an active noise elimination module. The expansion chamber is connected to the active noise elimination module. The active noise elimination module further comprises a secondary sound source, a microphone, and a control module. The expansion chamber further comprises an opening for sealing and shielding the mouth and nose organ and forming an acoustic system of the expansion type silencer together with the sealed and shielded face skin. The tube is a respiratory airflow channel, and is an acoustic device having acoustic impedance different from that of the expansion chamber. In this way, the anti-snoring device provided in the utility model has the beneficial effects of being wide in applicability, large in noise elimination amount, wide in noise elimination bandwidth, small in size, light in weight, and low in electric energy consumption.