WIRELESS DISTANCE MEASUREMENT SYSTEM AND WIRELESS DISTANCE MEASUREMENT METHOD
    1.
    发明申请
    WIRELESS DISTANCE MEASUREMENT SYSTEM AND WIRELESS DISTANCE MEASUREMENT METHOD 失效
    无线距离测量系统和无线距离测量方法

    公开(公告)号:US20100159842A1

    公开(公告)日:2010-06-24

    申请号:US12486707

    申请日:2009-06-17

    IPC分类号: H04B17/00

    摘要: A wireless distance measurement system and a wireless distance measurement method that measure the distance between a base station and a terminal without clock synchronization between a plurality of base stations, and without requiring input of the position relationships between a plurality of base stations. Clock phase shift section (210) shifts a clock that is used to generate transmission pulses is phase-shifted by a specific amount every 100 nanoseconds, and A/D conversion section (211) converts a signal re-radiated from terminal (103) to a digital signal using the shifted clock. Correlation calculation section (212) performs correlation calculation between the digital signal and the transmission pulse and creates a delay profile by adding digital signals in the shifted phases between same phases, and incoming wave detection section (213) detects peaks of the pulses in the delay profile. Distance calculation section (214) calculates the distance to terminal (103) based on the timings to transmit the pulses and the timings to detect peaks of the pulses.

    摘要翻译: 无线距离测量系统和无线距离测量方法,其测量基站和终端之间的距离,而不需要在多个基站之间的位置关系的输入,而不需要在多个基站之间进行时钟同步。 时钟相移部(210)移位用于产生发送脉冲的时钟每100纳秒相移特定量,A / D转换部(211)将从终端(103)重新发射的信号转换为 使用移位时钟的数字信号。 相关计算部(212)进行数字信号与发送脉冲之间的相关运算,并通过在相位相位之间移位移相的数字信号相加产生延迟分布,入射波检测部(213)检测出延迟中的脉冲的峰值 个人资料 距离计算部(214)基于发送脉冲的定时和检测脉冲峰值的定时,计算与终端(103)的距离。

    Wireless distance measurement system and wireless distance measurement method
    2.
    发明授权
    Wireless distance measurement system and wireless distance measurement method 失效
    无线距离测量系统和无线距离测量方法

    公开(公告)号:US07868815B2

    公开(公告)日:2011-01-11

    申请号:US12486707

    申请日:2009-06-17

    IPC分类号: G01S13/74

    摘要: A wireless distance measurement system and a wireless distance measurement method that measure the distance between a base station and a terminal without clock synchronization between a plurality of base stations, and without requiring input of the position relationships between a plurality of base stations. Clock phase shift section (210) shifts a clock that is used to generate transmission pulses is phase-shifted by a specific amount every 100 nanoseconds, and A/D conversion section (211) converts a signal re-radiated from terminal (103) to a digital signal using the shifted clock. Correlation calculation section (212) performs correlation calculation between the digital signal and the transmission pulse and creates a delay profile by adding digital signals in the shifted phases between same phases, and incoming wave detection section (213) detects peaks of the pulses in the delay profile. Distance calculation section (214) calculates the distance to terminal (103) based on the timings to transmit the pulses and the timings to detect peaks of the pulses.

    摘要翻译: 无线距离测量系统和无线距离测量方法,其测量基站和终端之间的距离,而不需要在多个基站之间的位置关系的输入,而不需要在多个基站之间进行时钟同步。 时钟相移部(210)移位用于产生发送脉冲的时钟每100纳秒相移特定量,A / D转换部(211)将从终端(103)重新发射的信号转换为 使用移位时钟的数字信号。 相关计算部(212)进行数字信号与发送脉冲之间的相关运算,并通过在相位相位之间移动相位相加数字信号来产生延迟分布,而入射波检测部分(213)检测延迟中脉冲的峰值 个人资料 距离计算部(214)基于发送脉冲的定时和检测脉冲峰值的定时,计算与终端(103)的距离。

    Burst mode optical transmitter circuit
    3.
    发明授权
    Burst mode optical transmitter circuit 有权
    突发模式光发射机电路

    公开(公告)号:US06282216B1

    公开(公告)日:2001-08-28

    申请号:US09471370

    申请日:1999-12-23

    IPC分类号: H01S313

    CPC分类号: H04B10/564 H04B10/504

    摘要: A burst mode optical transmitter circuit comprises a semiconductor laser, a photodiode for monitoring the light output from the semiconductor laser, a current-voltage converting circuit for converting the current detected by the photodiode into a voltage, an APC amplifier, a holding circuit for holding, as a current control signal, the output signal from the APC amplifier, a driving circuit for supplying a driving current to the semiconductor laser according the current control signal from the holding circuit and the the data input in the burst mode, and a data interruption detecting circuit for detecting an interrupt period of the data input to the driving circuit to reset the holding circuit, in which the current control signal held in the hold circuit is reset by the reset signal, whereby a stable burst optical transmission can be performed stably with a simple construction.

    摘要翻译: 突发模式光发射机电路包括半导体激光器,用于监测来自半导体激光器的光输出的光电二极管,用于将由光电二极管检测的电流转换为电压的电流 - 电压转换电路,APC放大器,用于保持的保持电路 作为电流控制信号,来自APC放大器的输出信号,用于根据来自保持电路的电流控制信号和在突发模式中输入的数据向半导体激光器提供驱动电流的驱动电路和数据中断 检测电路,用于检测输入到驱动电路的数据的中断周期以复位保持电路,其中保持在保持电路中的电流控制信号由复位信号复位,从而可以稳定地执行稳定的突发光传输, 一个简单的施工。

    Imaging device
    4.
    发明授权
    Imaging device 有权
    成像设备

    公开(公告)号:US07964902B2

    公开(公告)日:2011-06-21

    申请号:US11861691

    申请日:2007-09-26

    IPC分类号: H01L31/062

    摘要: First diffusion region constituting a photodiode in each pixel stores carriers generated according to incident light. Second diffusion region is formed at a surface of the first diffusion region to cover a peripheral part of the first diffusion region. In the peripheral part of the first diffusion region, crystal defects tend to occur by a process of forming an isolation region and a gate electrode, so that dark current noise tends to occur. The second diffusion region functioning as a protection layer prevents crystal defects in a manufacturing process. The second diffusion region isn't formed on a center of the surface of the first diffusion region where crystal defects don't tend to occur. In the first diffusion region where the second diffusion region isn't formed, the thickness of a depletion layer increases, which improves light detection sensitivity. This improves detection sensitivity of the photodiode without increasing the dark current noise.

    摘要翻译: 在每个像素中构成光电二极管的第一扩散区域存储根据入射光生成的载流子。 第二扩散区域形成在第一扩散区域的表面以覆盖第一扩散区域的周边部分。 在第一扩散区域的外围部分中,通过形成隔离区域和栅极电极的过程倾向于发生晶体缺陷,从而趋于产生暗电流噪声。 用作保护层的第二扩散区防止制造过程中的晶体缺陷。 第二扩散区域不形成在不易发生结晶缺陷的第一扩散区域的表面的中心。 在没有形成第二扩散区域的第一扩散区域中,耗尽层的厚度增加,这提高了光检测灵敏度。 这可以提高光电二极管的检测灵敏度,而不会增加暗电流噪声。

    Wireless device and wireless channel measurement controller
    5.
    发明申请
    Wireless device and wireless channel measurement controller 失效
    无线设备和无线信道测量控制器

    公开(公告)号:US20060135191A1

    公开(公告)日:2006-06-22

    申请号:US11302324

    申请日:2005-12-14

    IPC分类号: H04B7/00

    摘要: In measurement of wireless channels in an IEEE 802.11 wireless local area network (WLAN), in the case of multi-channel measurement as in North America in which eight wireless channels Ch1 through Ch8 are available, channel measurement according to a predetermined algorithm is made in which odd-numbered channels Ch1, Ch3, Ch5 and Ch7 are first measured, and if radio interference occurs in channel Ch5, channels Ch4 and Ch6 adjacent to channel Ch5 are measured. This shortens the measurement time that conventionally corresponds to measurement of the eight channels to the time of six channels, i.e., the sum of the measurement time for the odd-numbered channels and that for the channels adjacent to the interference-occurring channel.

    摘要翻译: 在IEEE 802.11无线局域网(WLAN)中的无线信道的测量中,在北美的多信道测量的情况下,其中八个无线信道Ch 1至Ch 8可用,根据预定算法的信道测量是 首先测量奇数通道Ch 1,Ch 3,Ch 5和Ch 7,并且如果在通道Ch 5中发生无线电干扰,则测量与通道Ch 5相邻的通道Ch 4和Ch 6。 这将通常对应于八个信道的测量的测量时间缩短到六个信道的时间,即奇数信道的测量时间和与干扰发生信道相邻的信道的测量时间之和。

    Solid-State Image Pickup Apparatus Including A Global Shutter Function and Control Method Therefor
    7.
    发明申请
    Solid-State Image Pickup Apparatus Including A Global Shutter Function and Control Method Therefor 审中-公开
    包括全局快门功能的固态图像拾取装置及其控制方法

    公开(公告)号:US20100283879A1

    公开(公告)日:2010-11-11

    申请号:US12843619

    申请日:2010-07-26

    IPC分类号: H04N5/335

    摘要: A solid-state image pickup apparatus includes a pixel unit consisting of a plurality of pixels; a pixel control unit for controlling the plurality of pixels; a readout unit for reading a signal of each pixel output from the pixel unit; a shutter unit for establishing a state of a light incident to the pixel unit and that of shielding the pixel unit from the light; and a control unit. The control unit includes an exposure mode changeover unit for changing over an exposure mode to either a first exposure mode performing a simultaneous exposure for all pixels or a second exposure mode performing an exposure for each of a predetermined unit of pixels. The control unit controls the pixel control unit, readout unit and shutter unit according to an exposure mode changed over by the exposure mode changeover unit.

    摘要翻译: 固态图像拾取装置包括由多个像素组成的像素单元; 用于控制所述多个像素的像素控制单元; 读取单元,用于读取从像素单元输出的每个像素的信号; 快门单元,用于建立入射到像素单元的光的状态以及屏蔽像素单元与光的状态; 和控制单元。 控制单元包括曝光模式切换单元,用于将曝光模式转换为针对所有像素执行同时曝光的第一曝光模式或对于每个像素的预定单位执行曝光的第二曝光模式。 控制单元根据曝光模式转换单元改变的曝光模式来控制像素控制单元,读出单元和快门单元。

    Planar optical waveguide device
    10.
    发明授权
    Planar optical waveguide device 失效
    平面光波导器件

    公开(公告)号:US06847772B2

    公开(公告)日:2005-01-25

    申请号:US10273995

    申请日:2002-10-21

    CPC分类号: G02B6/122

    摘要: A planar optical waveguide device including a substrate having a first coefficient of thermal expansion; a lower cladding layer formed on the substrate, the lower cladding layer having a second coefficient of thermal expansion smaller than the first coefficient of thermal expansion; a core formed on the lower cladding layer; an upper cladding layer formed on the lower cladding layer so as to cover the core, the upper cladding layer having the second coefficient of thermal expansion; and a plurality of grooves formed in the upper and lower cladding layers on the opposite sides of the core so as to extend along the core. The planar optical waveguide device further includes a contraction material filling each groove and fixed to the upper and lower cladding layers. The contraction material may be provided by a thermosetting resin.

    摘要翻译: 一种平面光波导器件,包括具有第一热膨胀系数的衬底; 形成在所述基板上的下包层,所述下包层的第二热膨胀系数小于所述第一热膨胀系数; 形成在下包层上的芯; 形成在所述下包覆层上以覆盖所述芯的上包层,所述上包层具有所述第二热膨胀系数; 以及形成在所述芯的相对侧上的上包层和下包覆层中以沿着所述芯延伸的多个槽。 平面光波导装置还包括填充每个沟槽并固定到上包层和下包层的收缩材料。 收缩材料可以由热固性树脂提供。