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30 条记录 (耗时 0.026 秒)

    Gravity gradiometer
    1.
    发明申请
    Gravity gradiometer 有权
    重力梯度计

    公开(公告)号：US20070051175A1

    公开(公告)日：2007-03-08

    申请号：US11494545

    申请日：2006-07-28

    申请人： John French ,  Kieran Carroll ,  Steven Thorpe

    发明人： John French ,  Kieran Carroll ,  Steven Thorpe

    IPC分类号： G01V7/02

    CPC分类号： G01V7/10

    摘要： A gravity gradiometer having quadrupole responders in which a mass quadrupole is supported by a torsional spring forming a flexure allowing rotation of the mass quadrupole about its center of mass. The flexure can be a pair of spaced apart posts. The flexure can be made from glassy metal having at room temperature a high elastic limit, high stiffness, high strength and low internal damping. The flexure can alternatively be a web made of glassy metal.

    摘要翻译： 具有四极响应器的重力梯度计，其中质量四极杆由形成弯曲的扭转弹簧支撑，允许质量四极杆围绕其质心旋转。 挠曲件可以是一对间隔开的柱。 弯曲可以由具有高弹性极限，高刚度，高强度和低内部阻尼的室温玻璃状金属制成。 挠性件也可以是由玻璃状金属制成的网。

    Audio amplifier
    3.
    发明申请
    Audio amplifier 有权
    音频放大器

    公开(公告)号：US20070080745A1

    公开(公告)日：2007-04-12

    申请号：US11592115

    申请日：2006-11-03

    申请人： John French ,  Douglas Hansen

    发明人： John French ,  Douglas Hansen

    IPC分类号： H03F3/38

    CPC分类号： H03F3/217 ,  H03F1/34 ,  H03F1/38 ,  H03F3/3069 ,  H03F2200/03 ,  H03F2200/504 ,  H03G3/3021

    摘要： In a first aspect, the invention provides an audio amplifier. A regulator reference signal corresponding to an input audio signal is generated by regulator reference generator. A power signal is generated corresponding to the regulator reference signal by a voltage regulator. A compensation block also uses the input signal, or a delayed version of the input signal to generate a modulation control signal. A modulator generates a modulated signal in response to the modulation control signal. An output stage combines the power signal and the modulation signal to provide an output audio signal corresponding to the input audio signal. The compensation block may be a forward compensation block configured to compensate for characteristics of the regulator reference generator or the voltage regulator or both, and possibly other components of the amplifier. In other embodiments, the compensation block may be part of a feedback compensation loop. In another aspect the invention provides speakers and speaker assemblies utilizing the amplifier. In another aspect, the invention provides speakers and speaker assemblies with improved physical safety isolation.

    摘要翻译： 在第一方面，本发明提供一种音频放大器。 调节器参考发生器产生对应于输入音频信号的调节器参考信号。 通过电压调节器产生对应于调节器参考信号的功率信号。 补偿块还使用输入信号或延迟版本的输入信号来产生调制控制信号。 调制器响应于调制控制信号产生调制信号。 输出级组合功率信号和调制信号以提供对应于输入音频信号的输出音频信号。 补偿块可以是正向补偿块，其被配置为补偿调节器参考发生器或电压调节器或两者的特性，以及可能的其他放大器的组件。 在其他实施例中，补偿块可以是反馈补偿回路的一部分。 在另一方面，本发明提供了利用放大器的扬声器和扬声器组件。 在另一方面，本发明提供具有改进的物理安全隔离的扬声器和扬声器组件。

    Shock-absorbing carrying strap
    6.
    发明申请
    Shock-absorbing carrying strap 审中-公开
    减震携带

    公开(公告)号：US20050258205A1

    公开(公告)日：2005-11-24

    申请号：US10851550

    申请日：2004-05-21

    申请人： John French

    发明人： John French

    IPC分类号： A41F15/02 ,  A45F3/00 ,  A45F3/02 ,  A45F3/04 ,  A45F3/12 ,  A45F3/14

    CPC分类号： A45F3/12 ,  A45F3/02 ,  A45F3/04 ,  A45F2003/007 ,  A45F2003/142

    摘要： A carrying strap and method of making wherein the strap is adapted to support a load and includes a flexible webbing material and a spring element that dissipates and attenuates the shocks and vibrations caused by bouncing of the load as it is carried. One embodiment of the carrying strap includes (1) an elongate length of flexible webbing material and (2) a spring element including a resilient material positioned adjacent to at least a portion of the flexible webbing material such that each of the resilient material and the section of flexible webbing material has a corrugated profile. In response to the load causing a shock force on the carrying strap, the spring element expands and contracts to absorb, attenuate, and/or dissipate the shock force caused by bouncing of the load as it is carried.

    摘要翻译： 承载带和制造方法，其中带子适于支撑负载，并且包括柔性织带材料和弹性元件，其消耗和衰减由于负载在被承载时弹跳而引起的冲击和振动。 承载带的一个实施例包括（1）细长长度的柔性织带材料和（2）弹簧元件，弹簧元件包括邻近柔性织带材料的至少一部分定位的弹性材料，使得每个弹性材料和截面 柔性织带材料具有波纹状。 响应于在承载带上引起冲击力的载荷，弹簧元件膨胀和收缩以吸收，衰减和/或消散由于承载物料的弹跳而引起的冲击力。

    High frequency pulse generating circuit
    8.
    发明授权
    High frequency pulse generating circuit 失效
    高频脉冲发生电路

    公开(公告)号：US4489288A

    公开(公告)日：1984-12-18

    申请号：US335369

    申请日：1981-12-29

    申请人： John French

    发明人： John French

    IPC分类号： H03K3/53 ,  H03C1/30 ,  H03B9/10

    CPC分类号： H03C1/30

    摘要： A circuit for generating high frequency output pulses comprising a magnetron, a pulse transformer having its secondary winding coupled to apply firing pulses across the input terminals of the magnetron, charge storage means connected in circuit with the primary winding of the pulse transformer, and switching means for discharging the charge storage means through said primary winding to generate a firing pulse from said secondary winding, said switching means comprising an FET switching device having output terminals connected in series with said primary winding, and a control terminal, and a control circuit adapted to deliver low voltage (e.g. less than 20 volts) pulses to said control terminal.

    摘要翻译： 一种用于产生高频输出脉冲的电路，包括磁控管，脉冲变压器，其二次绕组被耦合以在磁控管的输入端施加触发脉冲，与脉冲变压器的初级绕组电路连接的电荷存储装置，以及开关装置 用于通过所述初级绕组放电电荷存储装置以产生来自所述次级绕组的点火脉冲，所述开关装置包括具有与所述初级绕组串联连接的输出端子的FET开关装置和控制端子，以及控制电路， 向所述控制端子提供低电压（例如小于20伏）的脉冲。