High Power Laser Doppler Velocimeter With Multiple Amplification Stages
    2.
    发明申请
    High Power Laser Doppler Velocimeter With Multiple Amplification Stages 有权
    具有多个放大阶段的大功率激光多普勒测速仪

    公开(公告)号:US20130162976A1

    公开(公告)日:2013-06-27

    申请号:US13475536

    申请日:2012-05-18

    IPC分类号: G01P5/26

    摘要: Systems and methods for laser based measurement of air parameters are disclosed. An example system includes a source of radiation, an amplification system with one or more power amplification stages, a transceiver, and an optical mixer. The source produces a plurality of beams, and the amplification system is configured to amplify the beams. The transceiver is configured to transmit the modulated beam to, and receive a scattered beam from a target region. The optical mixer is configured to determine a difference between the scattered beam and a reference beam, which is used to determine a Doppler shift therefrom. In certain embodiments, the amplification system includes a fiber preamplifier and one or more fiber power amplifiers stages.

    摘要翻译: 公开了用于激光测量空气参数的系统和方法。 示例性系统包括辐射源,具有一个或多个功率放大级的放大系统,收发器和光学混合器。 源产生多个光束,并且放大系统被配置为放大光束。 收发器被配置为将调制的波束发射到目标区域并且从目标区域接收散射光束。 光学混合器被配置为确定散射光束和参考光束之间的差异,其用于确定其中的多普勒频移。 在某些实施例中,放大系统包括光纤前置放大器和一个或多个光纤功率放大器级。

    Method of wear leveling for non-volatile memory and apparatus using via shifting windows
    4.
    发明授权
    Method of wear leveling for non-volatile memory and apparatus using via shifting windows 有权
    用于非易失性存储器和通过移位窗口使用的设备的磨损均衡方法

    公开(公告)号:US08095724B2

    公开(公告)日:2012-01-10

    申请号:US12026400

    申请日:2008-02-05

    IPC分类号: G06F12/00 G06F13/00 G06F13/28

    摘要: A method of wear leveling for a non-volatile memory is disclosed. A non-volatile memory is divided into windows and gaps, with each gap between two adjacent windows. The windows comprise physical blocks mapped to logical addresses, and the gaps comprise physical blocks not mapped to logical addresses. The windows are shifted through the non-volatile memory in which the mapping to the physical blocks in the window to be shifted is changed to the physical blocks in the gap.

    摘要翻译: 公开了一种用于非易失性存储器的磨损均衡的方法。 非易失性存储器分为窗口和间隙,两个相邻窗口之间的每个间隙。 窗口包括映射到逻辑地址的物理块,并且间隙包括未映射到逻辑地址的物理块。 窗口移动通过非易失性存储器,在该非易失性存储器中,将要移位的窗口中的物理块的映射改变为间隙中的物理块。

    Method and Apparatus for a Pulsed Coherent Laser Range Finder
    5.
    发明申请
    Method and Apparatus for a Pulsed Coherent Laser Range Finder 审中-公开
    脉冲相干激光测距仪的方法和装置

    公开(公告)号:US20110292371A1

    公开(公告)日:2011-12-01

    申请号:US13116621

    申请日:2011-05-26

    申请人: Chia Chen CHANG

    发明人: Chia Chen CHANG

    IPC分类号: G01C3/08 G01P3/36

    摘要: Systems and methods are disclosed for measuring a distance, a velocity, etc., of a target using coherent laser radiation. In one example, a method is provided comprising measuring a time required for a light pulse to travel to and from a target, the light pulse reflecting from the target, and determining the distance to the target based on the measuring. The method also comprises measuring a Doppler shift of the reflected light pulse using an optical detection technique and determining the velocity of the target from the Doppler shift. In a further example, a system is disclosed comprising a transceiver, a coherent source, an optical system and a detector configured to measure the distance to the target based on a measured time for a light pulse to travel to and from the target. The system is also configured to determine the velocity of the target from a measured Doppler shift.

    摘要翻译: 公开了用于使用相干激光辐射测量目标的距离,速度等的系统和方法。 在一个示例中,提供了一种方法,包括测量光脉冲行进到目标所需的时间,从目标反射的光脉冲,以及基于测量确定到目标​​的距离。 该方法还包括使用光学检测技术测量反射光脉冲的多普勒频移,并从多普勒频移确定目标的速度。 在另一示例中,公开了一种系统,其包括收发器,相干源,光学系统和检测器,其被配置为基于测量的时间来测量到目标的距离,以便光脉冲行进到目标。 该系统还被配置为从测量的多普勒频移确定目标的速度。

    AC-LED PROTECTION CIRCUIT
    6.
    发明申请
    AC-LED PROTECTION CIRCUIT 审中-公开
    交流LED保护电路

    公开(公告)号:US20110062871A1

    公开(公告)日:2011-03-17

    申请号:US12875139

    申请日:2010-09-03

    IPC分类号: H05B37/00

    摘要: An AC-LED protection circuit comprises an AC-LED with a first terminal and a second terminal, and a circuit protection unit electrically connects with the first and second terminals of the AC-LED. When a voltage between two terminals of the circuit protection unit exceeds a voltage threshold, the circuit protection unit substantially forms a short circuit. Also, when a current through the circuit protection units exceeds a current threshold, the circuit protection unit forms a substantial open circuit.

    摘要翻译: AC-LED保护电路包括具有第一端子和第二端子的AC-LED,以及与AC-LED的第一和第二端子电连接的电路保护单元。 当电路保护单元的两个端子之间的电压超过电压阈值时,电路保护单元基本上形成短路。 此外,当通过电路保护单元的电流超过电流阈值时,电路保护单元形成实质的开路。

    LED LAMP AND HEAT-DISSIPATING WATERPROOF COVER THEREOF
    7.
    发明申请
    LED LAMP AND HEAT-DISSIPATING WATERPROOF COVER THEREOF 有权
    LED灯和散热防水罩

    公开(公告)号:US20100053966A1

    公开(公告)日:2010-03-04

    申请号:US12546081

    申请日:2009-08-24

    IPC分类号: F21S4/00

    摘要: An LED lamp includes an illumination apparatus and a heat-dissipating waterproof cover. The illumination apparatus includes LED modules; and the heat-dissipating waterproof cover is configured to cover the LED modules. The heat-dissipating waterproof cover includes a plurality of drain members, and a gap is formed between every two drain members so as to increase the air convection, thereby increasing heat dissipation efficiency of the LED modules. Every two adjacent drain members are partially overlapping in vertical to prevent the intrusion of water.

    摘要翻译: LED灯包括照明装置和散热防水罩。 照明装置包括LED模块; 并且散热防水罩被配置为覆盖LED模块。 散热防水罩包括多个排水构件,并且在两个排水构件之间形成间隙,以增加空气对流,从而提高LED模块的散热效率。 每两个相邻的排水构件在垂直方向上部分重叠以防止水的侵入。

    LED LIGHTING MODULE
    8.
    发明申请
    LED LIGHTING MODULE 审中-公开
    LED照明模块

    公开(公告)号:US20090296388A1

    公开(公告)日:2009-12-03

    申请号:US12473189

    申请日:2009-05-27

    IPC分类号: F21S4/00

    摘要: An LED lighting module comprises an array luminous element and a bar-like light guiding structure. The array luminous element comprises a plurality of illuminants of top-emitting LEDs arranged in an array form. The bar-like light guiding structure surrounds two laterals of the array luminous element. The bar-like light guiding structure comprises a first curved surface and a second curved surface. The first curved surface and the second curved surface respectively descend toward the middle of the array luminous element from the two sides of the array luminous element, and meet above the middle of the array luminous element. The first curved surface and the second curved surface connect with each other at the plane with a certain angle and in tangency where the positive optical axis exists. The positive optical axis is the direction perpendicular to the plane on which the LEDs are mounted.

    摘要翻译: LED照明模块包括阵列发光元件和棒状导光结构。 阵列发光元件包括以阵列形式布置的顶部发光LED的多个发光体。 棒状导光结构围绕阵列发光元件的两个侧面。 棒状导光结构包括第一弯曲表面和第二弯曲表面。 第一曲面和第二曲面分别从阵列发光元件的两侧向阵列发光元件的中间下降,并且在阵列发光元件的中间满足。 第一弯曲表面和第二弯曲表面在平面处以一定角度和正光轴存在的切线彼此连接。 正光轴是垂直于其上安装LED的平面的方向。

    Memory card connector with switch terminals having improved contacts
    9.
    发明申请
    Memory card connector with switch terminals having improved contacts 有权
    具有开关端子的存储卡连接器具有改进的接触

    公开(公告)号:US20050003693A1

    公开(公告)日:2005-01-06

    申请号:US10869609

    申请日:2004-06-16

    申请人: Chia-Chen Chang

    发明人: Chia-Chen Chang

    CPC分类号: H01R13/7033

    摘要: A memory card connector includes an insulative housing having a rear terminal-mounting section and at least one side wall section extending forwardly from one end of the rear section defining a card-receiving space therebetween. A first conductive terminal is mounted on the housing and has a first contact portion with a first protrusion thereon. A second conductive terminal is mounted on the housing and has a second contact portion with a second protrusion thereon. The contact portions of the terminals are normally spaced from each other but are juxtaposed so that the contact portions and the protrusions are mutually engaged in response to a memory card inserted into the card-receiving space. The protrusions are offset from each other, whereby the first protrusion of the first terminal engages the second contact portion of the second terminal, and the second protrusion of the second terminal engages the first contact portion of the first terminal.

    摘要翻译: 存储卡连接器包括具有后端子安装部分和从后部的一端向前延伸的至少一个侧壁部分的绝缘壳体,其在它们之间形成卡片容纳空间。 第一导电端子安装在壳体上并且具有其上具有第一突起的第一接触部分。 第二导电端子安装在壳体上并且具有与其上的第二突起的第二接触部分。 端子的接触部分通常彼此间隔开,但并列,使得接触部分和突出部分响应于插入卡接收空间中的存储卡而互相接合。 突起彼此偏移,由此第一端子的第一突起接合第二端子的第二接触部分,并且第二端子的第二突起接合第一端子的第一接触部分。

    Optical sensing device containing fiber Bragg gratings
    10.
    发明授权
    Optical sensing device containing fiber Bragg gratings 失效
    包含光纤布拉格光栅的光学感测装置

    公开(公告)号:US06674928B2

    公开(公告)日:2004-01-06

    申请号:US09917643

    申请日:2001-07-31

    IPC分类号: G02B600

    摘要: A new optical sensing device containing fiber Bragg gratings, a scanning bandpass filter, an interferometer and multiple photodetectors is disclosed. The present invention also describes a new system and method for fibre Bragg grating (FBG) sensor interrogation and multiplexing. The new system combines a scanning Fabry-Perot (SFP) bandpass filter used to wavelength-multiplex multiple gratings in a single fiber, and an unbalanced Mach-Zehnder fibre interferometer made with a 3×3 coupler to detect strain-induced wavelength shifts. A passive technique for interferometer drift compensation using non-sensing FBGs is included in the system. A complete prototype system interrogates four gratings in a single fiber at a Nyquist sampling rate up to 10 kHz, with a noise floor measured near 4 n&egr; Hz−1/2 above 0.1 Hz. The inclusion of the interferometer drift compensation technique is shown to make quasi-static measurements feasible.

    摘要翻译: 公开了一种包含光纤布拉格光栅,扫描带通滤波器,干涉仪和多个光电探测器的新型光学感测装置。 本发明还描述了用于光纤布拉格光栅(FBG)传感器询问和复用的新系统和方法。 新系统结合了用于在单个光纤中波长复用多个光栅的扫描法布里 - 珀罗(SFP)带通滤波器和用3x3耦合器制成的不平衡马赫 - 曾德尔光纤干涉仪,以检测应变诱发的波长漂移。 系统中包含使用非感应FBG的干涉仪漂移补偿的被动技术。 完整的原型系统以高达10 kHz的奈奎斯特采样率在单根光纤中询问四个光栅,噪声基底在0.1赫兹附近测得。 显示了包含干涉仪漂移补偿技术,使准静态测量成为可能。