Direct-conversion frequency mixer
    1.
    发明授权
    Direct-conversion frequency mixer 有权
    直接转换混频器

    公开(公告)号:US07542521B2

    公开(公告)日:2009-06-02

    申请号:US11226045

    申请日:2005-09-14

    IPC分类号: H03K9/00

    摘要: Provided is a direct-conversion frequency mixer for down converting a radio frequency (RF) signal into a baseband signal, in which a single phase RF signal and a quadrature location oscillation (quadrature LO) signal are used to generate the baseband signal, the frequency mixer comprising a first frequency mixing unit that uses quadrature LO signals having respective phases of 0 degrees and 180 degrees to directly down-convert the single phase RF signal into the in-phase baseband signal, and a second frequency mixing unit that uses quadrature LO signals having respective phases of 90 degrees and 270 degrees to directly down-convert the single phase RF signal into the quadrature-phase baseband signal, whereby drains and sources of the transistor for receiving the quadrature LO signal and the transistor for receiving the RF signal are connected in common, thus enabling low power source voltage driving.

    摘要翻译: 提供了一种用于将射频(RF)信号下变频为基带信号的直接转换混频器,其中使用单相RF信号和正交位置振荡(正交LO)信号来产生基带信号,频率 混频器,其包括使用具有0度和180度的相位的正交LO信号的第一频率混合单元,以将单相RF信号直接下变频为同相基带信号;以及第二混频单元,其使用正交LO信号 具有90度和270度的各个相位以将单相RF信号直接下变频为正交基带信号,由此连接用于接收正交LO信号的晶体管的漏极和源极以及用于接收RF信号的晶体管被​​连接 因此能够实现低电源电压驱动。

    WASHING MACHINE
    3.
    发明申请
    WASHING MACHINE 审中-公开
    洗衣机

    公开(公告)号:US20110283743A1

    公开(公告)日:2011-11-24

    申请号:US13143034

    申请日:2009-12-30

    IPC分类号: D06F21/02

    CPC分类号: D06F37/22 D06F37/20

    摘要: Drum type washing machine is disclosed, including a cabinet having a base plate, a tub fixedly secured to an inside of the cabinet, a drum positioned in the tub for holding washing water, a rotation shaft connected to a rear of the drum, a bearing housing assembly for supporting the rotation shaft, buffering and supporting members connected between the bearing housing assembly and the base plate, and fastening means for fastening the bearing housing assembly to the cabinet releasably.

    摘要翻译: 公开了一种滚筒式洗衣机,包括具有基板的柜体,固定在机壳内部的桶,定位在桶中用于保持洗涤水的滚筒,连接到滚筒后部的旋转轴, 用于支撑旋转轴的壳体组件,连接在轴承壳体组件和基板之间的缓冲和支撑构件以及用于将轴承壳体组件可释放地紧固到机壳的紧固装置。

    Method for laser hammering a multi-channel optoelectronic device module
    4.
    发明授权
    Method for laser hammering a multi-channel optoelectronic device module 有权
    激光锤击多通道光电器件模块的方法

    公开(公告)号:US6087621A

    公开(公告)日:2000-07-11

    申请号:US177480

    申请日:1998-10-23

    摘要: A method for correcting or hammering a deformation which occurs in the multi-channel optoelectronic module and is caused by a post welding shift. The multi-channel optoelectronic module has an optical fiber support member for supporting an optical fiber array. The method includes the steps of: assembling the multi-channel optoelectronic module by using a laser welding process; and forming at least one welded portion on a predetermined position of said optical fiber supporting member corresponding to the deformation to thereby recover the deformation by using a shrinkage effect of the welded portion.

    摘要翻译: 一种用于校正或锤击在多通道光电子模块中发生并且由后焊移位引起的变形的方法。 多通道光电子模块具有用于支撑光纤阵列的光纤支撑构件。 该方法包括以下步骤:通过使用激光焊接工艺组装多通道光电子模块; 并且在与所述变形相对应的所述光纤支撑构件的预定位置上形成至少一个焊接部分,从而通过使用所述焊接部分的收缩效应来恢复所述变形。