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    • 93. 发明申请
    • Millimeter-wave area-protection system and method
    • 毫米波区域保护系统和方法
    • US20050156743A1
    • 2005-07-21
    • US10758334
    • 2004-01-15
    • James GallivanKenneth BrownPhilip StarbuckAndrew Brown
    • James GallivanKenneth BrownPhilip StarbuckAndrew Brown
    • F41H13/00G08B15/00G08B23/00
    • G08B15/00F41H13/0068
    • An area-protection system uses an active-array antenna to generate a high-power millimeter-wave wavefront to deter an intruder within a protected area. One or more reflectors may be positioned within the protected area to help retain energy of the wavefront within the area. The area-protection system may include an intrusion-detection subsystem to detect presence of the intruder within the protected area and to generate a detection signal. The active-array antenna may generate the high-power millimeter-wave wavefront in response to the detection signal. In some embodiments, the intrusion-detection subsystem may detect the presence of a tag worn by the intruder, and may instruct the array antenna to refrain from generating the wavefront when tag is authenticated. In some embodiments, an illuminator may be used detect intruder movement based on return signals. In some embodiments, the array antenna includes semiconductor wafers arranged together on a substantially flat surface.
    • 区域保护系统使用有源阵列天线来产生大功率毫米波波前,以阻止入侵者在受保护区域内。 一个或多个反射器可以被定位在保护区域内以帮助保持该区域内的波前的能量。 区域保护系统可以包括入侵检测子系统,以检测入侵者在受保护区域内的存在并产生检测信号。 有源阵列天线可以响应于检测信号而产生高功率毫米波波前。 在一些实施例中,入侵检测子系统可以检测入侵者佩戴的标签的存在,并且可以在标签被认证时指示阵列天线避免生成波阵面。 在一些实施例中,可以使用照明器基于返回信号检测入侵者移动。 在一些实施例中,阵列天线包括在基本平坦的表面上一起布置的半导体晶片。
    • 94. 发明授权
    • Digital phase comparator and frequency synthesizer
    • 数字相位比较器和频率合成器
    • US6107890A
    • 2000-08-22
    • US305634
    • 1999-05-05
    • Mark Brian CarsonAndrew Brown
    • Mark Brian CarsonAndrew Brown
    • G01R25/00H03D13/00H03L7/085H03L7/091
    • H03L7/085G01R25/005H03D13/004H03L7/091
    • The phase of a pulsed test signal is measured with reference to a reference signal of constant frequency by sampling the test signal at times determined by transitions in the reference signal and comparing the sampled test signal with the output of a phase accumulator clocked by the reference signal. A resulting measurement signal represents a difference in the number of transitions occurring in the sampled test signal and a reference state signal output by the phase accumulator. The measurement signal may be averaged and integrated to obtain an error signal which may then be filtered to provide a control signal for an oscillator. A digital frequency synthesizer is provided by frequency dividing the output of the oscillator by a constant multiple to obtain the test signal and integrating an offset signal in addition to the averaged measurement signal so that the operating frequency of the oscillator is offset from a nominal frequency by an amount determined by the offset signal. The digital frequency synthesizer is suitable for use in a synchronous equipment timing source within a telecommunications multiplexer operating at a line transmission rate of 155.52 MHz.
    • 脉冲测试信号的相位参考恒定频率的参考信号,通过在由参考信号中的转变确定的时间内对测试信号进行采样来测量,并将采样的测试信号与由参考信号计时的相位累加器的输出进行比较 。 所得到的测量信号表示在采样的测试信号中发生的转换次数和由相位累加器输出的参考状态信号之间的差异。 可以对测量信号进行平均和积分,以获得误差信号,然后将其滤波以提供振荡器的控制信号。 通过将振荡器的输出频率除以恒定倍数来提供数字频率合成器,以获得测试信号并且除了平均的测量信号之外积分偏移信号,使得振荡器的工作频率从标称频率偏移 由偏移信号确定的量。 数字频率合成器适用于以155.52MHz的线路传输速率工作的电信多路复用器的同步设备定时源。
    • 95. 发明授权
    • Flowmeter for measuring the flow rate of a two phase fluid in a pipe
    • 用于测量管道中两相流体流量的流量计
    • US5693891A
    • 1997-12-02
    • US481342
    • 1995-10-10
    • Andrew BrownJoseph Allen
    • Andrew BrownJoseph Allen
    • G01F1/36G01F1/44G01F1/74G01F1/88
    • G01F1/74G01F1/36G01F1/44G01F1/88
    • A flowmeter for measuring the flow rate of a two phase liquid in a pipe having a first pipe section (11) having a first diameter (D1), a second pipe section (12) of a smaller diameter (D2), an internally tapering transition pipe section (13) forming a smooth transition between the first and second pipe sections (11, 12), and three pressure tapping points comprising upstream (At.sub.u, Bt.sub.u, Ct.sub.u), downstream (At.sub.d, Bt.sub.d, Ct.sub.d) and intermediate tapping points (At.sub.i, Bt.sub.i, Ct.sub.i), in which a first differential pressure monitoring arrangement is provided to measure the pressure differential between the upstream and the downstream tapping points and form which fluid density can be derived, and a second differential pressure monitoring arrangement is provided to monitor the pressure differential between the intermediate tapping point and one of the upstream or downstream tapping points, whereby flow rates can be calculated from the derived density value and the second differential pressure measurement.
    • PCT No.PCT / GB94 / 00051 Sec。 371 1995年10月10日第 102(e)日期1995年10月10日PCT 1994年1月7日PCT PCT。 出版物WO94 / 16295 日期1994年7月21日一种用于测量具有第一直径(D1)的第一管段(11),具有较小直径(D2)的第二管段(12)的管中的两相液体的流量的流量计, ,在第一和第二管段(11,12)之间形成平滑过渡的内锥形过渡管段(13),以及包括上游(Atu,Btu,Ctu),下游(Atd,Btd,Ctd) 和中间出口点(Ati,Bti,Cti),其中提供第一差压监测装置以测量上游和下游出口点之间的压力差,并形成可以导出哪种流体密度;以及第二差压监测 提供了用于监测中间出口点和上游或下游出口点之一之间的压力差的布置,由此可以从导出的密度值和第二差分压力机计算流速 ure测量。
    • 100. 发明申请
    • Bluetooth Wireless Network for Infrared Electronic Devices
    • 蓝牙无线网络红外线电子设备
    • US20150262475A1
    • 2015-09-17
    • US14658209
    • 2015-03-15
    • Barnabas HelmyAndrew Brown
    • Barnabas HelmyAndrew Brown
    • G08C17/02G08C23/04
    • G08C17/02G08C23/04G08C2201/42
    • A wireless network for providing commands to a plurality of electronic devices that receive an infrared signal is provided with an at least one sprocket for receiving a wireless transmission command via Bluetooth signals and/or infrared signals and a Bluetooth remote for sending the Bluetooth signal to the at least one sprocket. The Bluetooth remote is provided with a Bluetooth remote power source, a software application for providing command logic to the Bluetooth remote, and a Bluetooth signal transmitter. The at least one sprocket is provided with a sprocket shell housing, a corresponding sprocket lid, and a sprocket command assembly that is housed by the sprocket shell housing and the corresponding sprocket lid.
    • 用于向接收红外信号的多个电子设备提供命令的无线网络设置有至少一个链轮,用于经由蓝牙信号和/或红外信号接收无线传输命令,以及蓝牙遥控器,用于将蓝牙信号发送到 至少一个链轮。 蓝牙遥控器配备有蓝牙远程电源,用于向蓝牙遥控器提供命令逻辑的软件应用程序和蓝牙信号发射器。 所述至少一个链轮设置有链轮壳体壳体,相应的链轮盖和由链轮壳体壳体和相应的链轮盖容纳的链轮指令组件。