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35 条记录 (耗时 0.027 秒)

    Headset with ear cushion and means for limiting the compression of the cushion
    5.
    发明授权
    Headset with ear cushion and means for limiting the compression of the cushion 失效
    带耳垫的耳机和用于限制衬垫压缩的装置

    公开(公告)号：US06748087B1

    公开(公告)日：2004-06-08

    申请号：US09043273

    申请日：1998-03-05

    申请人： Owen Jones

    发明人： Owen Jones

    IPC分类号： H03B2900

    CPC分类号： H04R1/1083 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/321 ,  G10K2210/3219 ,  H04R5/033

    摘要： An earpiece for a headset, especially a headset incorporating active unwanted noise suppression, wherein the earshell incorporates a baffle plate carrying a sound drive and an ear cushion, whereby the baffle plate also carries an upstanding projection, more especially in the form of a sound transparent dome, which limits the extent to which the cushion can be compressed when the earpiece is pressed inwardly against the ear from its normally fitted condition.

    摘要翻译： 用于耳机的耳机，特别是包含有效的不需要的噪声抑制的耳机，其中耳壳包括携带声音驱动器和耳垫的挡板，由此挡板还承载着直立的突出部，更特别地以声音透明的形式 圆顶，这限制了当听筒从其正常安装的状态向内压靠耳朵时可以压缩衬垫的程度。

    Reduced VLF overload susceptibility active noise cancellation headset
    6.
    发明授权
    Reduced VLF overload susceptibility active noise cancellation headset 失效
    降低VLF过载敏感度主动降噪耳机

    公开(公告)号：US5452361A

    公开(公告)日：1995-09-19

    申请号：US81420

    申请日：1993-06-22

    申请人： Owen Jones

    发明人： Owen Jones

    IPC分类号： G10K11/178 ,  H03B29/00

    CPC分类号： G10K11/1784 ,  G10K2210/1081 ,  G10K2210/3028 ,  G10K2210/3039 ,  G10K2210/3045

    摘要： The susceptibility of an active noise cancellation system to overloading due to very low frequencies is reduced by subtracting the low frequency components of an applied noise field from the residual signal. Low frequency components of the applied noise field outside the normal range of human hearing are detected by an external sensor and isolated by a filter circuit. The isolated low frequency signal is subtracted from the residual signal, resulting in a modified residual signal with reduced low frequency components. The cancellation system thus eliminates very low frequency cancellation signals, without sacrificing bandwidth or system performance within the audible range.

    摘要翻译： 通过从残余信号中减去所施加的噪声场的低频分量，减少了由于极低频率而导致的主动噪声消除系统对过载的敏感性。 人体听觉正常范围以外的施加噪声场的低频分量由外部传感器检测并被滤波器电路隔离。 从残留信号中减去隔离的低频信号，导致修改后的残差信号具有降低的低频分量。 因此，消除系统消除了非常低的频率消除信号，而不会在可听范围内牺牲带宽或系统性能。

    Power converter with low ripple output
    7.
    发明授权
    Power converter with low ripple output 有权
    低纹波输出功率转换器

    公开(公告)号：US08576592B2

    公开(公告)日：2013-11-05

    申请号：US12845631

    申请日：2010-07-28

    申请人： Owen Jones ,  Lawrence R. Fincham

    发明人： Owen Jones ,  Lawrence R. Fincham

    IPC分类号： H02M7/04

    CPC分类号： H02M3/22 ,  H02M1/14 ,  H02M3/07 ,  H02M7/10

    摘要： A power supply includes two or more input waveforms being shaped or selected so that after being separately level-shifted and rectified, their additive combination results in a DC output waveform with substantially no ripple. The power supply may comprise a waveform generator, a level conversion stage for step up or down conversion, a rectification stage, and a combiner. The waveform generator may generate complementary waveforms, preferably identical but phase offset from each other, such that after the complementary waveforms are level-converted, rectified and additively combined their sum will be constant, thus requiring no or minimal smoothing for generation of a DC output waveform. The level conversion may be carried out using transformers or switched capacitor circuits. Feedback from the DC output waveform may be used to adjust the characteristics of the input waveforms.

    摘要翻译： 电源包括两个或更多个输入波形进行整形或选择，使得在被单独电平移位和整流之后，它们的相加组合导致基本上没有纹波的直流输出波形。 电源可以包括波形发生器，用于升压或降压转换的电平转换级，整流级和组合器。 波形发生器可以产生互补波形，优选地彼此相同但相位偏移，使得在互补波形被电平转换，整流和相加组合之后，它们的和将是恒定的，因此不需要或最小化平滑以产生DC输出 波形 电平转换可以使用变压器或开关电容器电路来执行。 来自直流输出波形的反馈可用于调整输入波形的特性。

    POWER SUPPLY
    9.
    发明申请
    POWER SUPPLY 有权
    电源

    公开(公告)号：US20110075454A1

    公开(公告)日：2011-03-31

    申请号：US12845631

    申请日：2010-07-28

    申请人： Owen Jones ,  Lawrence R. Fincham

    发明人： Owen Jones ,  Lawrence R. Fincham

    IPC分类号： H02M7/04

    CPC分类号： H02M3/22 ,  H02M1/14 ,  H02M3/07 ,  H02M7/10

    摘要： A power supply includes two or more input waveforms being shaped or selected so that after being separately level-shifted and rectified, their additive combination results in a DC output waveform with substantially no ripple. The power supply may comprise a waveform generator, a level conversion stage for step up or down conversion, a rectification stage, and a combiner. The waveform generator may generate complementary waveforms, preferably identical but phase offset from each other, such that after the complementary waveforms are level-converted, rectified and additively combined their sum will be constant, thus requiring no or minimal smoothing for generation of a DC output waveform. The level conversion may be carried out using transformers or switched capacitor circuits. Feedback from the DC output waveform may be used to adjust the characteristics of the input waveforms.

    摘要翻译： 电源包括两个或更多个输入波形进行整形或选择，使得在被单独电平移位和整流之后，它们的相加组合导致基本上没有纹波的直流输出波形。 电源可以包括波形发生器，用于升压或降压转换的电平转换级，整流级和组合器。 波形发生器可以产生互补波形，优选地彼此相同但相位偏移，使得在互补波形被电平转换，整流和相加组合之后，它们的和将是恒定的，因此不需要或最小化平滑以产生DC输出 波形 电平转换可以使用变压器或开关电容器电路来执行。 来自直流输出波形的反馈可用于调整输入波形的特性。

    Variable gain active noise canceling system with improved residual noise sensing
    10.
    发明授权
    Variable gain active noise canceling system with improved residual noise sensing 失效
    可变增益有源噪声消除系统，具有改进的残余噪声感测

    公开(公告)号：US6118878A

    公开(公告)日：2000-09-12

    申请号：US968873

    申请日：1997-11-05

    申请人： Owen Jones

    发明人： Owen Jones

    IPC分类号： A61F11/14 ,  G10K11/178 ,  H03B29/00 ,  A61F11/06

    CPC分类号： G10K11/178 ,  G10K11/1782 ,  G10K11/1788 ,  A61F2011/145 ,  G10K2210/108 ,  G10K2210/1081 ,  G10K2210/3011 ,  G10K2210/3013 ,  G10K2210/3019 ,  G10K2210/3028 ,  G10K2210/3056 ,  G10K2210/3214 ,  G10K2210/503

    摘要： An active noise cancellation system includes a series of features for more effective cancellation, greater reliability, and improved stability. A particular feature adapted for headset systems includes locating a residual microphone radially offset from the center of a sound generator to detect a signal more similar to that incident upon the eardrum of the user. In addition, an open back headset design includes perforations on the side of the headset instead of the back, so that the perforations are less susceptible to inadvertent blockage. The system also includes a mechanism for detecting changes in the acoustic characteristics of the environment that may be caused, for example, by pressure exerted upon the earpieces, and that may destabilize the cancellation system. The system automatically responds to such changes, for example, by reducing the gain or the frequency response of the system to preserve stability. The system further includes other methods for detecting imminent instability and compensating, such as detecting the onset of signals within enhancement frequencies characteristic of the onset of instability, and adjusting the gain or frequency response of the system or suppressing the enhanced signals. The system further includes a mechanism for conserving battery life by turning the system off when sound levels are low, or adjusting the power supply to the system to correspond to the current power requirements of the system.

    摘要翻译： 主动噪声消除系统包括一系列功能，用于更有效的消除，更高的可靠性和更好的稳定性。 适用于耳机系统的特定特征包括将距离声发生器中心径向偏移的剩余麦克风定位成检测更类似于在用户鼓膜上入射的信号的信号。 此外，开放式耳机设计包括耳机侧面的穿孔而不是背部，使得穿孔不易受到意外的堵塞。 该系统还包括用于检测可能由例如通过施加在听筒上的压力引起的环境的声学特性变化的机构，并且可能使取消系统不稳定。 系统自动响应这种变化，例如，通过减小系统的增益或频率响应来保持稳定性。 该系统还包括用于检测即将发生的不稳定性和补偿的其它方法，例如检测不稳定性开始特征的增强频率内的信号的开始，以及调整系统的增益或频率响应或抑制增强的信号。 该系统还包括一个机构，用于通过在声级较低时关闭系统来节省电池寿命，或者调整系统的电源以对应于系统的当前功率需求。