Method and system for high resolution delay lock loop
    2.
    发明授权
    Method and system for high resolution delay lock loop 失效
    高分辨率延迟锁定环的方法和系统

    公开(公告)号:US06710636B1

    公开(公告)日:2004-03-23

    申请号:US10264692

    申请日:2002-10-03

    IPC分类号: H03L706

    摘要: A method for utilizing a delay lock loop to cover a wide delay range. In one method embodiment, the present invention receives a reference clock pulse. Next, in a first loop, a phase variation is adjusted between the feedback clock pulse and the reference clock pulse utilizing a coarse delay in conjunction with a first fine delay. The resulting pulse is then output to a chip delay and then sent back to the delay lock loop as a feedback clock pulse. Additionally, in a second loop, the phase variation is adjusted between said second loop and said first loop utilizing the coarse delay in conjunction with a second fine delay, wherein the second fine delay has a delay range for adjusting the phase variation which overlaps the delay range of the first fine delay of the first loop.

    摘要翻译: 一种利用延迟锁定环来覆盖宽延迟范围的方法。 在一个方法实施例中,本发明接收参考时钟脉冲。 接下来,在第一循环中,利用与第一精细延迟相结合的粗略延迟,在反馈时钟脉冲和参考时钟脉冲之间调整相位变化。 然后将产生的脉冲输出到芯片延迟,然后作为反馈时钟脉冲发送回延迟锁定环。 另外,在第二环路中,利用与第二精细延迟相结合的粗略延迟,在所述第二环路和所述第一环路之间调整相位变化,其中第二精细延迟具有用于调整与延迟重叠的相位变化的延迟范围 第一个循环的第一个精细延迟的范围。

    Expanded beam connector concepts
    3.
    发明申请
    Expanded beam connector concepts 有权
    扩展梁连接器概念

    公开(公告)号:US20090252459A1

    公开(公告)日:2009-10-08

    申请号:US12337212

    申请日:2008-12-17

    IPC分类号: G02B6/36 B29D11/00

    摘要: A terminus for a fiber optic cable includes a ferrule. In one embodiment, an optical fiber of the cable passes through a central bore of the ferrule and is attached to a lens seated in a conical or cylindrical seat formed in an end surface of the ferrule by an epoxy. In a second embodiment, an optical fiber of the cable passes through the central bore of the ferrule. Next, a cap sleeve with a lens therein is slid over and attached to the ferrule such that the lens abuts or is attached to the optical fiber. In either embodiment, an inspection slot may optionally be formed in the ferrule and/or the cap sleeve to allow a technician to inspect the state of the attachment and/or abutment and/or spacing of the optical fiber and lens.

    摘要翻译: 光缆的终端包括套圈。 在一个实施例中,电缆的光纤穿过套圈的中心孔,并且通过环氧树脂附着到位于套圈的端面中形成的锥形或圆柱形座中的透镜。 在第二实施例中,电缆的光纤穿过套圈的中心孔。 接下来,其中具有透镜的盖套滑动并附接到套圈,使得透镜邻接或附接到光纤。 在任一实施例中,可以可选地在套圈和/或帽套筒中形成检查槽,以允许技术人员检查光纤和透镜的附接和/或邻接和/或间隔的状态。

    Programmable transmission line impedance matching circuit
    6.
    发明授权
    Programmable transmission line impedance matching circuit 有权
    可编程传输线阻抗匹配电路

    公开(公告)号:US06384621B1

    公开(公告)日:2002-05-07

    申请号:US09790372

    申请日:2001-02-22

    IPC分类号: H03K190175

    CPC分类号: H04L25/0278 H03K19/0005

    摘要: An apparatus comprising a first circuit, a second circuit, and an output circuit. The first circuit may be configured to generate a first digital output in response to (i) a reference input and (ii) a feedback input. The second circuit may be configured to generate a second digital output in response to (i) the first digital output and (ii) a second feedback input. The output circuit may be configured to generate a third output in response to a data input, wherein an output impedance of the output circuit is adjusted in response to (i) the first digital output and (ii) the second digital output.

    摘要翻译: 一种包括第一电路,第二电路和输出电路的装置。 第一电路可以被配置为响应于(i)参考输入和(ii)反馈输入而产生第一数字输出。 第二电路可以被配置为响应于(i)第一数字输出和(ii)第二反馈输入而产生第二数字输出。 输出电路可以被配置为响应于数据输入而产生第三输出,其中响应于(i)第一数字输出和(ii)第二数字输出来调整输出电路的输出阻抗。

    Interlocking temporary modular floor
    8.
    发明申请
    Interlocking temporary modular floor 审中-公开
    联锁临时模块化地板

    公开(公告)号:US20120151866A1

    公开(公告)日:2012-06-21

    申请号:US13199094

    申请日:2011-08-18

    IPC分类号: E04B5/00

    摘要: A modular floor is disclosed having a number of interlocking modular elements. Interlocking elements of the modular elements have surfaces which mate to prevent movement in planar directions. Gripping surfaces are provided to prevent slipping or movement of the modular elements with respect to a subfloor upon which the modular elements are temporarily placed. This modular floor is quickly and easily assembled and disassembled. The locking elements and the support element are easily attached to the modular elements via rivets screws or similar fasteners.

    摘要翻译: 公开了具有多个互锁模块化元件的组合式地板。 模块化元件的联锁元件具有与平面方向移动相配合的表面。 提供夹持表面以防止模块化元件相对于临时放置模块化元件的底层地板滑动或移动。 这个模块化的地板可快速方便的组装和拆卸。 锁定元件和支撑元件通过铆钉螺钉或类似的紧固件容易地附接到模块化元件。

    Eye-safe laser navigation sensor
    9.
    发明授权
    Eye-safe laser navigation sensor 有权
    眼睛安全的激光导航传感器

    公开(公告)号:US07809035B2

    公开(公告)日:2010-10-05

    申请号:US11432987

    申请日:2006-05-12

    IPC分类号: H01S3/00

    CPC分类号: H01S5/042 H01S5/06808

    摘要: The apparatus includes a diode laser and a current source interconnected with the diode laser. Two independent circuits in the current source are configured to limit current flowing through the diode laser. A first current limiter circuit configured to limit a current output from the current source to an anode of the diode laser, and an independent second current limiter circuit configured to limit a current return from a cathode of the diode laser to the current source so that laser output power does not exceed a specified maximum regardless of a single fault in either the first or second current limiter circuits.

    摘要翻译: 该装置包括二极管激光器和与二极管激光器互连的电流源。 电流源中的两个独立电路被配置为限制流过二极管激光器的电流。 第一限流器电路,被配置为将来自电流源的电流输出限制到二极管激光器的阳极;以及独立的第二限流器电路,其被配置为限制从二极管激光器的阴极到电流源的电流返回,使得激光器 输出功率不超过规定的最大值,而与第一或第二限流器电路中的单个故障无关。

    Eye-safe laser navigation sensor
    10.
    发明申请
    Eye-safe laser navigation sensor 有权
    眼睛安全的激光导航传感器

    公开(公告)号:US20070230525A1

    公开(公告)日:2007-10-04

    申请号:US11432987

    申请日:2006-05-12

    IPC分类号: H01S3/00

    CPC分类号: H01S5/042 H01S5/06808

    摘要: One embodiment relates to an optical navigation apparatus which provides fault-tolerant limitation of laser output power. The apparatus includes a diode laser and a current source interconnected with the diode laser. Two independent circuits in the current source are configured to limit current flowing through the diode laser. Another embodiment relates to a method of providing fault-tolerant limitation of laser output power in an optical navigation apparatus. A first digital current limit value is converted to a first analog signal, and the first analog signal is used to limit an electrical current from a power supply connection to an anode of a diode laser. A second digital current limit value is converted to a second analog signal, and the second analog signal is used to limit an electrical current from a cathode of the diode laser to a ground connection. Other embodiments are also disclosed.

    摘要翻译: 一个实施例涉及提供激光输出功率的容错限制的光学导航装置。 该装置包括二极管激光器和与二极管激光器互连的电流源。 电流源中的两个独立电路被配置为限制流过二极管激光器的电流。 另一实施例涉及在光学导航装置中提供激光输出功率的容错限制的方法。 第一数字电流限制值被转换为第一模拟信号,并且第一模拟信号用于限制从二极管激光器的电源连接到电源连接的电流。 第二数字电流限制值被转换为第二模拟信号,并且第二模拟信号用于限制从二极管激光器的阴极到接地连接的电流。 还公开了其他实施例。