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    • 5. 发明申请
    • Portable cleaning machine
    • 便携式清洁机
    • US20050076467A1
    • 2005-04-14
    • US10681468
    • 2003-10-08
    • Ronald StephensGary JohnsDavid MoineRichard Wareham
    • Ronald StephensGary JohnsDavid MoineRichard Wareham
    • A47L5/00A47L5/36A47L9/00A47L9/32A47L11/00A47L11/30A47L11/34B08B5/04
    • A47L5/225A47L11/34A47L11/4061A47L11/4075
    • A cleaning apparatus for cleaning a surface is provided. The cleaning apparatus has a housing for movement along a surface with a suction nozzle assembly having an inlet and outlet provided on the housing. A recovery container is removably mounted to the housing. A hose having a first end detachably connected to the outlet of the suction nozzle and a second end in fluid communication with the recovery container floor-scrubbing machine is provided. A vacuum source is in fluid communication with the suction nozzle, hose, and recovery container for drawing dirt from the cleaning surface into the inlet of the suction nozzle and into. The cleaning apparatus further includes a handle movably connected to the housing and movable between a first position that locks the first end of the hose to the housing to a second position that unlocks the first end of the hose to the housing.
    • 提供了用于清洁表面的清洁装置。 清洁装置具有用于沿着表面移动的壳体,其具有在壳体上设置有入口和出口的吸嘴组件。 回收容器可拆卸地安装到壳体上。 一种软管,其具有可拆卸地连接到吸嘴的出口的第一端和与回收容器地板洗涤机流体连通的第二端。 真空源与吸嘴,软管和回收容器流体连通,用于将污垢从清洁表面吸入吸嘴的入口并进入。 清洁装置还包括可移动地连接到壳体的手柄,并且可在将软管的第一端与壳体锁定到将软管的第一端解锁到壳体的第二位置之间移动。
    • 6. 发明申请
    • Wavelength division multiplexing methods and apparatus for constructing photonic beamforming networks
    • 用于构建光子束成形网络的波分复用方法和装置
    • US20070154220A1
    • 2007-07-05
    • US11712701
    • 2007-02-28
    • Ronald Stephens
    • Ronald Stephens
    • H04B10/00
    • H04J14/02H01Q3/2676
    • Methods and apparatus for constructing phased array antenna beamforming networks are provided, that allow to scan multiple beams and select appropriate sets of delay lines simultaneously. The beamforming networks disclosed herein generate less losses than conventional ones and in some cases, do not require active switching, making them completely passive. Three main methods are comprised in the invention: (1) laser wavelength hierarchies, (2) arrangements of Wavelengths Division Multiplexing (WDM) components, (3) re-use of laser wavelengths. Multiple laser wavelengths are arranged in groups and subgroups (wavelength hierarchies) in the wavelength domain. By switching between these wavelength groupings, the arrangements of WDM components disclosed herein enable the beamforming network to direct the beam signals to the proper time delay lines, and to differentiate multiple beams. The method of laser wavelength re-use permits to significantly reduce the number of wavelengths utilized, and thus to limit them to the standard wavelengths specified by the ITU.
    • 提供了用于构造相控阵天线波束形成网络的方法和装置,其允许扫描多个波束并同时选择合适的延迟线组。 这里公开的波束形成网络产生比常规波束成形网络更少的损耗,并且在一些情况下,不需要主动切换,使得它们完全被动。 本发明包括三个主要方法:(1)激光波长层次,(2)波分复用(WDM)分量的布置,(3)重复使用激光波长。 多个激光波长在波长域中以组和子组(波长层级)排列。 通过在这些波长分组之间进行切换,本文公开的WDM组件的布置使得波束成形网络能够将波束信号引导到适当的时间延迟线并区分多个波束。 激光波长重复使用的方法允许显着减少使用的波长数量,从而将其限制在由ITU规定的标准波长。