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    Methods and apparatus for use with optical fibres
    2.
    发明授权
    Methods and apparatus for use with optical fibres 有权
    用于光纤的方法和设备

    公开(公告)号：US07720331B2

    公开(公告)日：2010-05-18

    申请号：US11740549

    申请日：2007-04-26

    申请人： Andrew James Rennie ,  Trevor White ,  Christel Rousseau ,  Ian Peter Alcock

    发明人： Andrew James Rennie ,  Trevor White ,  Christel Rousseau ,  Ian Peter Alcock

    IPC分类号： G02B6/42 ,  G02F1/335 ,  G02B6/26

    CPC分类号： G02B6/14

    摘要： An apparatus for performing mode scrambling in a multimode optical fibre 1 comprises an electromechanical transducer 3 and a signal generator 9. A portion of the fibre 1, which is in the form of a loop 5, is arranged with its ends 6 fixed to the transducer 3, but with the remainder of the portion being left free to vibrate. The signal generator 9 drives the transducer 3 so as to form a succession of bends of differing bend radii in the portion of the fibre as a beam of electromagnetic radiation travels through the fibre, thereby “scrambling” the beam as it travels through the fibre.

    摘要翻译： 用于在多模光纤1中执行模式加扰的装置包括机电换能器3和信号发生器9.纤维1的一部分呈循环5的形式，其端部6固定到换能器 3，但部分剩余部分自由振动。 信号发生器9驱动换能器3，以便随着电磁辐射束穿过光纤而在光纤的该部分中形成不同弯曲半径的一连串弯曲，从而当光束穿过光纤时“扰乱”光束。

    SRAM sense amplifier
    4.
    发明授权
    SRAM sense amplifier 失效
    SRAM读出放大器

    公开(公告)号：US08536898B2

    公开(公告)日：2013-09-17

    申请号：US13151276

    申请日：2011-06-02

    申请人： David James Rennie ,  Manoj Sachdev

    发明人： David James Rennie ,  Manoj Sachdev

    IPC分类号： G01R19/00

    CPC分类号： G11C7/065 ,  G11C11/413

    摘要： A sense amplifier for use in a memory array having a plurality of memory cells is provided. The sense amplifier provides low power dissipation, rapid sensing and high yield sensing operation. The inputs to the sense amplifier are the differential bitlines of an SRAM column, which are coupled to the sense amplifier via the sources of two PMOS transistors. A CMOS latching element comprised of two NMOS transistors and the aforementioned PMOS transistors act to amplify any difference between the differential bitline voltages and resolve the output nodes of the sense amplifier to a full swing value. The latching element is gated with two additional PMOS transistors which act to block the latching operation until the sense amplifier is enabled. One or more equalization transistors ensure the latch remains in the metastable state until it is enabled. Once the latch has resolved it consumes no DC power, aside from leakage.

    摘要翻译： 提供了一种用于具有多个存储单元的存储器阵列中的读出放大器。 感测放大器提供低功耗，快速感测和高产量感测操作。 读出放大器的输入是SRAM列的差分位线，它们通过两个PMOS晶体管的源极耦合到读出放大器。 由两个NMOS晶体管和上述PMOS晶体管组成的CMOS锁存元件用于放大差分位线电压之间的任何差异，并将读出放大器的输出节点解析为全摆幅值。 闭锁元件门控有两个附加的PMOS晶体管，其用于阻止锁存操作，直到读出放大器被使能。 一个或多个均衡晶体管确保闩锁保持在亚稳态，直到其被使能。 一旦闩锁已经解决，除了泄漏外，它不会消耗直流电。

    METHODS AND APPARATUS FOR USE WITH OPTICAL FIBRES
    5.
    发明申请
    METHODS AND APPARATUS FOR USE WITH OPTICAL FIBRES 有权
    用于光纤的方法和装置

    公开(公告)号：US20080175537A1

    公开(公告)日：2008-07-24

    申请号：US11740549

    申请日：2007-04-26

    申请人： Andrew James Rennie ,  Trevor White ,  Christel Rousseau ,  Ian Peter Alcock

    发明人： Andrew James Rennie ,  Trevor White ,  Christel Rousseau ,  Ian Peter Alcock

    IPC分类号： G02B6/26

    CPC分类号： G02B6/14

    摘要： An apparatus for performing mode scrambling in a multimode optical fibre 1 comprises an electromechanical transducer 3 and a signal generator 9. A portion of the fibre 1, which is in the form of a loop 5, is arranged with its ends 6 fixed to the transducer 3, but with the remainder of the portion being left free to vibrate. The signal generator 9 drives the transducer 3 so as to form a succession of bends of differing bend radii in the portion of the fibre as a beam of electromagnetic radiation travels through the fibre, thereby “scrambling” the beam as it travels through the fibre.

    摘要翻译： 用于在多模光纤1中执行模式加扰的装置包括机电换能器3和信号发生器9。 呈环5形式的纤维1的一部分被布置成其端部6固定在换能器3上，但其余部分被自由振动。 信号发生器9驱动换能器3，以便随着电磁辐射束穿过光纤而在光纤的该部分中形成不同弯曲半径的一连串弯曲，从而当光束穿过光纤时“扰乱”光束。

    Apparatus and method for use in applying particles to an external layer of uncured resin of a coating of an optical fibre unit
    6.
    发明授权
    Apparatus and method for use in applying particles to an external layer of uncured resin of a coating of an optical fibre unit 失效
    用于将颗粒施加到光纤单元的涂层的未固化树脂的外层上的装置和方法

    公开(公告)号：US5851450A

    公开(公告)日：1998-12-22

    申请号：US688475

    申请日：1996-07-30

    申请人： Andrew James Rennie ,  Thomas Curley

    发明人： Andrew James Rennie ,  Thomas Curley

    IPC分类号： C03C25/10 ,  G02B6/44 ,  B29D11/00

    CPC分类号： G02B6/4438 ,  C03C25/106 ,  C03C25/1065 ,  Y10S118/05

    摘要： Apparatus for use in applying particles to an external layer of uncured resin material of a coating of an optical fibre unit with at least one optical fibre, said apparatus including means (50) defining an axially extending through-passage (52) through which, in use, such an optical fibre unit is passed, said passage defining means having an inlet (62) for admitting fluidized particles into said through-passage, and said through-passage being provided with means (64) for generating turbulence in such fluidized particles in said through-passage.

    摘要翻译： 用于将颗粒施加到具有至少一根光纤的光纤单元的涂层的未固化树脂材料的外层上的装置，所述装置包括限定轴向延伸的通过通道（52）的装置（50），所述装置 使用时，通过这种光纤单元，所述通道限定装置具有用于将流化颗粒引入所述通过通道的入口（62），并且所述通道设置有用于在这种流化颗粒中产生湍流的装置（64） 说通过。

    Lubricated mechanical seals for pumps
    7.
    发明授权
    Lubricated mechanical seals for pumps 失效
    泵的润滑机械密封

    公开(公告)号：US4108569A

    公开(公告)日：1978-08-22

    申请号：US690081

    申请日：1976-05-26

    申请人： Michael Leslie Ryall ,  James Rennie Robertson

    发明人： Michael Leslie Ryall ,  James Rennie Robertson

    IPC分类号： F04D29/12 ,  F16J15/40 ,  F16J15/16 ,  F16J15/54

    CPC分类号： F04D29/128 ,  F04D29/126 ,  F16J15/40

    摘要： In a rotodynamic pump intended for operation at high pressures e.g. 2000 p.s.i. and for pumping contaminated fluids e.g. corrosive water, high pressure sealing assemblies are provided at the through-openings in the pump casing for the pump shaft. Each assembly includes a pair of axially spaced mechanical seals, and each seal comprises a rotor portion fixed to the pump shaft and a stator portion axially movable into sealing engagement with the rotor portion, the stators being located intermediate the rotor portions. A busing is located between the seals and includes conduits supplying oil at a pressure above pump pressure to the innermost seal whence the oil is reduced in pressure and passed to the outermost seal, so that oil is delivered to the facing ends of the stators. The oil serves for lubrication of the sealing interfaces and for the prevention of egress of contaminated material through said innermost seal.

    摘要翻译： 在用于在高压下操作的旋转动力泵中。 2000 p.s.i. 并用于泵送受污染的流体。 腐蚀性水，高压密封组件设置在用于泵轴的泵壳中的通孔处。 每个组件包括一对轴向隔开的机械密封件，并且每个密封件包括固定到泵轴的转子部分和可轴向移动成与转子部分密封接合的定子部分，定子位于转子部分的中间。 泄压位于密封件之间，并且包括将压力高于泵压力的油供给到最内部密封件的管道，其中油被压力降低并传递到最外面的密封件，使得油被输送到定子的相对端。 该油用于润滑密封界面并防止被污染物质通过所述最内部密封件排出。