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12 条记录 (耗时 0.024 秒)

    Optical waveguide filter using multi-mode interference
    6.
    发明授权
    Optical waveguide filter using multi-mode interference 失效
    光波导滤波器采用多模干扰

    公开(公告)号：US06690856B2

    公开(公告)日：2004-02-10

    申请号：US10004812

    申请日：2001-12-07

    申请人： Doohwan Lee ,  Sangsun Lee

    发明人： Doohwan Lee ,  Sangsun Lee

    IPC分类号： G02B626

    CPC分类号： G02B6/4246 ,  G02B6/2813 ,  G02B6/29344

    摘要： An optical waveguide filter including a multi-mode waveguide having a predetermined width, a predetermined length and a predetermined thickness includes a transmitting light source and a photo detector coupled to one side of the multi-mode waveguide; and a transmission line coupled to the other side of the multi-mode waveguide, wherein one hundred percent of an output optical power having a first wavelength from the transmitting light source is transferred to the transmission line, and one hundred percent of an input optical power having a second wavelength from the transmission line is transferred to the photo detector.

    摘要翻译： 包括具有预定宽度，预定长度和预定厚度的多模波导的光波导滤波器包括耦合到多模波导的一侧的透射光源和光电检测器; 以及耦合到多模波导的另一侧的传输线，其中具有来自发射光源的第一波长的输出光功率的百分之一被传输到传输线，并且百分之一的输入光功率 具有来自传输线的第二波长被传送到光电检测器。

    Fuel cell system with fuel reforming units
    7.
    发明授权
    Fuel cell system with fuel reforming units 有权
    具有燃料重整单元的燃料电池系统

    公开(公告)号：US08101306B2

    公开(公告)日：2012-01-24

    申请号：US11496588

    申请日：2006-08-01

    申请人： Soonho Kim ,  Doohwan Lee ,  Hyun-chul Lee ,  Eun-duck Park

    发明人： Soonho Kim ,  Doohwan Lee ,  Hyun-chul Lee ,  Eun-duck Park

    IPC分类号： H01M8/06

    CPC分类号： H01M8/0668 ,  H01M8/0612 ,  Y02P70/56

    摘要： A fuel cell system and an operating method of the same. The fuel cell system includes a carbon monoxide adsorbing device that is disposed at an exit of a shift reactor and removes carbon monoxide which is not completely removed in the shift reactor. Therefore, a start-up time of the fuel cell system is remarkably reduced without poisoning catalysts of electrodes of the fuel cell. An overall volume of the fuel cell system can be reduced since the carbon monoxide adsorbing device is only operating during the start-up, and thus the fuel cell system can be economically manufactured and operated. Additionally, the carbon monoxide adsorbent can be regenerated, thereby increasing economic efficiency of the fuel cell system.

    摘要翻译： 燃料电池系统及其操作方法。 燃料电池系统包括一个一氧化碳吸附装置，其设置在换档反应器的出口处，并且除去在换档反应器中未完全去除的一氧化碳。 因此，不会燃料电池的电极的催化剂中毒，燃料电池系统的启动时间显着降低。 由于一氧化碳吸附装置仅在起动时才起作用，所以能够降低燃料电池系统的总体积，能够经济地制造和运转燃料电池系统。 此外，可以再生一氧化碳吸附剂，从而提高燃料电池系统的经济效率。

    Optical attenuator using multi-mode interference
    8.
    发明授权
    Optical attenuator using multi-mode interference 有权
    光衰减器采用多模干扰

    公开(公告)号：US06728463B2

    公开(公告)日：2004-04-27

    申请号：US10004811

    申请日：2001-12-07

    申请人： Doohwan Lee ,  Sangsun Lee

    发明人： Doohwan Lee ,  Sangsun Lee

    IPC分类号： G02B600

    CPC分类号： G02F1/225 ,  G02F1/0147 ,  G02F2001/217 ,  G02F2203/48

    摘要： An optical attenuator includes a first multi-mode waveguide varying a phase of an optical signal input through an input terminal; first and second single-mode waveguides having an input terminal coupled to an output terminal of the first multi-mode waveguide and varying a phase of the optical signal by a thermo-optic effect by electrodes attached thereto; and a second multi-mode waveguide having an input terminal coupled to an output terminal of the first and second single-mode waveguides and varying a phase of the optical signal, wherein a predetermined optical power distribution obtained by offsetting or adding up a phase varied in the first and second multi-mode waveguides and a phase varied by the thermo-optic effect is transferred to an output terminal of the second multi-mode waveguide.

    摘要翻译： 光衰减器包括改变通过输入端输入的光信号的相位的第一多模波导; 第一和第二单模波导具有耦合到第一多模波导的输出端的输入端，并且通过附着于其上的电极的热光效应改变光信号的相位; 以及第二多模式波导，其具有耦合到第一和第二单模波导的输出端的输入端，并改变光信号的相位，其中通过偏移或相加在第 第一和第二多模波导和由热光效应变化的相位被传送到第二多模波导的输出端。

    Receiver
    9.
    发明授权
    Receiver 有权
    接收器

    公开(公告)号：US09136893B2

    公开(公告)日：2015-09-15

    申请号：US13520268

    申请日：2011-01-12

    申请人： Takana Kaho ,  Yo Yamaguchi ,  Hiroyuki Shiba ,  Doohwan Lee ,  Takayuki Yamada ,  Kazunori Akabane ,  Kazuhiro Uehara

    发明人： Takana Kaho ,  Yo Yamaguchi ,  Hiroyuki Shiba ,  Doohwan Lee ,  Takayuki Yamada ,  Kazunori Akabane ,  Kazuhiro Uehara

    IPC分类号： H04B1/16 ,  H04B1/30 ,  H04B1/00

    CPC分类号： H04B1/30 ,  H04B1/0057

    摘要： A receiver includes a local signal generator, a power phase adjuster, and a frequency converter so as to perform frequency conversion on signals included in a plurality of radio frequency bands. The local signal generator supplies a plurality of local signals. The power phase adjuster adjusts local signals in terms of signal power or relative phases. The frequency converter performs frequency conversion on radio frequency bands by use of local signals adjusted with the power phase adjuster, thus sorting them in a desired frequency range.

    摘要翻译： 接收机包括本地信号发生器，电力相位调节器和频率转换器，以对包括在多个无线电频带中的信号执行频率转换。 本地信号发生器提供多个本地信号。 功率相位调节器根据信号功率或相对相位调整本地信号。 变频器通过使用通过电力相位调节器调整的本地信号在射频上执行频率转换，从而将它们分组到期望的频率范围。

    RECEIVER
    10.
    发明申请
    RECEIVER 有权
    接收器

    公开(公告)号：US20120281718A1

    公开(公告)日：2012-11-08

    申请号：US13520268

    申请日：2011-01-12

    申请人： Takana Kaho ,  Yo Yamaguchi ,  Hiroyuki Shiba ,  Doohwan Lee ,  Takayuki Yamada ,  Kazunori Akabane ,  Kazuhiro Uehara

    发明人： Takana Kaho ,  Yo Yamaguchi ,  Hiroyuki Shiba ,  Doohwan Lee ,  Takayuki Yamada ,  Kazunori Akabane ,  Kazuhiro Uehara

    IPC分类号： H04B1/18

    CPC分类号： H04B1/30 ,  H04B1/0057

    摘要： A receiver includes a local signal generator, a power phase adjuster, and a frequency converter so as to perform frequency conversion on signals included in a plurality of radio frequency bands. The local signal generator supplies a plurality of local signals. The power phase adjuster adjusts local signals in terms of signal power or relative phases. The frequency converter performs frequency conversion on radio frequency bands by use of local signals adjusted with the power phase adjuster, thus sorting them in a desired frequency range.

    摘要翻译： 接收机包括本地信号发生器，电力相位调节器和频率转换器，以对包括在多个无线电频带中的信号执行频率转换。 本地信号发生器提供多个本地信号。 功率相位调节器根据信号功率或相对相位调整本地信号。 变频器通过使用通过电力相位调节器调整的本地信号在射频上执行频率转换，从而将它们分组到期望的频率范围。