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    • 7. 发明授权
    • Liquid level detector
    • 液位检测器
    • US07437929B2
    • 2008-10-21
    • US10558707
    • 2004-05-17
    • Shigeki KoideKiyoshi EnomotoTadao NakagawaYoshiyuki ShimazakiYoshihiro KamimuraTetsuya Satoh
    • Shigeki KoideKiyoshi EnomotoTadao NakagawaYoshiyuki ShimazakiYoshihiro KamimuraTetsuya Satoh
    • G01F23/00
    • G01F23/36G01F23/363
    • The present invention provides an inexpensive small-sized liquid level detector. A liquid level detector 1 includes a float moving in accordance with variations in liquid level, a hard circuit board 5, resistors 12a and 12b provided on the circuit board 5, a first sliding path 14 made of a plurality of electrodes 13 provided on the circuit board 5 and connected to the resistors 12a and 12b, and a first contact 6 coming into contact with the first sliding path 14, and the liquid level detector 1 outputs an electrical signal based on the resistances of the resistors 12a and 12b which are varied by the first contact 6 coming into contact with at least one of the plurality of electrodes 13 forming the first sliding path 14 in accordance with a variation of the float. A second sliding path 15 electrically connected to the first sliding path 14 is provided on the circuit board 5, a second contact 7 coming into contact with the second sliding path 14 is provided, and each of the first and second contacts 6 and 7 is electrically connected to an external circuit.
    • 本发明提供一种廉价的小型液位检测器。 液面检测器1包括根据液位变化移动的浮子,设置在电路板5上的硬电路板5,电阻器12a和12b,由多个电极13制成的第一滑动路径14, 电路板5并连接到电阻器12a和12b以及与第一滑动路径14接触的第一触点6,液位检测器1基于电阻器12a和11b的电阻输出电信号 第二触点6根据浮子的变化与形成第一滑动路径14的多个电极13中的至少一个接触而变化。 电连接到第一滑动路径14的第二滑动路径15设置在电路板5上,设置与第二滑动路径14接触的第二触点7,并且第一和第二触点6和7中的每一个电气 连接到外部电路。
    • 8. 发明申请
    • Radio communication apparatus and radio communication system
    • 无线电通信装置和无线电通信系统
    • US20070218870A1
    • 2007-09-20
    • US11717737
    • 2007-03-14
    • Tetsuya Satoh
    • Tetsuya Satoh
    • H04M11/04
    • G01S5/12G01S3/72G01S5/0289H04W64/00
    • A radio communication apparatus includes a variable directivity antenna and a control unit and performs radio communication with another radio communication apparatus. The control unit calculates a position of the another radio communication apparatus by measuring a distance to the another radio communication apparatus and measuring directivity of the another radio communication apparatus by switching directivity of the wave of radio communication using the variable directivity antenna with a MEMS switch. Moreover, the control unit controls the output of the variable directivity antenna according to the calculated position of the another radio communication apparatus.
    • 无线通信装置包括可变方向性天线和控制单元,并与另一无线通信装置进行无线通信。 控制单元通过使用具有MEMS开关的可变方向性天线切换无线电通信的波的方向性,通过测量到另一无线电通信装置的距离并测量另一无线电通信装置的方向性来计算另一无线电通信装置的位置。 此外,控制单元根据计算出的另一无线通信装置的位置来控制可变方向性天线的输出。