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    • 24. 发明授权
    • Wireless monitoring system and child station therefor
    • 无线监控系统及其子站
    • US07917093B2
    • 2011-03-29
    • US11730060
    • 2007-03-29
    • Ken Takei
    • Ken Takei
    • H04B17/00
    • H04B7/10
    • A wireless monitoring system using a base station and a child station, includes the base station including a base-station transmitting and a base-station receiving antenna, and the child station including a child-station receiving antenna, a nonlinear, a smoothing circuit, a first high-frequency band-pass filter, an intermediate-frequency band-pass filter, a demodulator, a baseband, a modulator, and a child-station transmitting antenna. The base-station transmitting antenna and the child-station receiving antenna include circularly-polarized antennas which have a same rotating direction, and the child-station transmitting antenna and the base-station receiving antenna include circularly-polarized antennas which have a polarization characteristic rotating in a direction opposite to the base-station transmitting antenna and the child-station receiving antenna.
    • 使用基站和子站的无线监视系统包括基站发射和基站接收天线的基站,子站包括子站接收天线,非线性,平滑电路, 第一高频带通滤波器,中频带通滤波器,解调器,基带,调制器和子站发射天线。 基站发射天线和子站接收天线包括具有相同旋转方向的圆极化天线,子站发射天线和基站接收天线包括具有偏振特性旋转的圆极化天线 在与基站发射天线和子站接收天线相反的方向上。
    • 25. 发明授权
    • Skeleton equalizing antenna, RFID tag and RFID system using the same
    • 骨架均衡天线,RFID标签和RFID系统使用相同
    • US07791542B2
    • 2010-09-07
    • US12081901
    • 2008-04-23
    • Ken Takei
    • Ken Takei
    • H01Q1/12
    • H01Q1/2208H01Q1/38H01Q1/44H01Q9/04H01Q9/0407
    • The problems to be solved by the present invention are to provide an antenna which is applied to a wireless identification system wherein there is a long distance between a device to execute identification and a device attached to an object to be identified and which does not cause deterioration in aesthetic terms and covering of a meaningful symbol, and further to provide a wireless system using the antenna. According to the present invention, there are provided an antenna having a circularly polarizing function and a frequency equalizing function achieved by a grid structure having roughness and fineness around a feeding point and density which allows visible light to pass through, an RFID tag using the antenna, and an RFID system using the tag.
    • 本发明要解决的问题是提供一种应用于无线识别系统的天线,其中在执行识别的设备和附接到要识别的对象的设备之间存在长距离并且不会导致劣化的天线 在美学方面和有意义的符号的覆盖,并进一步提供使用该天线的无线系统。 根据本发明,提供了一种具有圆偏振功能和频率均衡功能的天线,其通过具有馈送点周围的粗糙度和细度的边界和允许可见光通过的密度的网格结构实现,使用天线的RFID标签 ,以及使用该标签的RFID系统。
    • 26. 发明申请
    • RFID tag
    • RFID标签
    • US20090091456A1
    • 2009-04-09
    • US12285303
    • 2008-10-01
    • Ken Takei
    • Ken Takei
    • G08B13/14
    • H01Q1/2225G06K19/0775H01Q9/0407H01Q21/28
    • An RFID tag of the present invention is provided to suppress variations in the capacity component that occur during physical coupling between an antenna and a semiconductor chip as part of the manufacturing process. The RFID tag includes an antenna with a pair of electric contacts, draw-out conductors of the electric contacts, and an RFID chip with a pair of electric contacts, wherein the electric contacts of the antenna are encompassed to their corresponding electric contacts of the RFID chip, and draw-out electrodes are drawn out in an opposite direction to the facing direction overlapped direction).
    • 提供本发明的RFID标签,以抑制作为制造过程的一部分的在天线和半导体芯片之间的物理耦合期间发生的电容分量的变化。 RFID标签包括具有一对电触头的天线,电触点的拉出导体和具有一对电触头的RFID芯片,其中天线的电触点包围在其对应的RFID触点中 芯片和引出电极在与相对方向重叠方向相反的方向上被拉出)。
    • 28. 发明申请
    • Small multi-mode antenna and rf module using the same
    • 小型多模式天线和rf模块使用相同
    • US20060262028A1
    • 2006-11-23
    • US10525378
    • 2002-10-15
    • Ken Takei
    • Ken Takei
    • H01Q1/50H01Q1/38
    • H01Q5/00H01Q1/241H01Q1/38H01Q5/314H01Q9/0442H01Q9/30
    • A small multi-mode antenna in which a single feeding point can be used commonly for multiple frequencies and an RF module using such antenna for use in less-costly and small multimedia wireless apparatus is provided. The antenna is configured such that a single feeding point 4 which is common for multiple frequencies is set up at one end of a radiating conductor 1, a first one-port resonant circuit 2 is connected to the one end thereof, and a second one-port resonant circuit 3 is connected to the other end of the radiating conductor 1. With a conductance component of admittance in view from the feeding point 4 toward free space equaling the characteristic admittance in the RF circuit, a susceptance component of the admittance is canceled out by the resonant circuit 2 connected to the feeding point 4 for multiple frequencies.
    • 提供了一种小型多模式天线,其中单个馈电点可以共同用于多个频率,并且使用这种天线的RF模块用于较便宜且小型的多媒体无线装置中。 天线被配置为使得在辐射导体1的一端处设置多个频率共同的单个馈电点4,其一端连接有第一单端口谐振电路2, 端口谐振电路3连接到辐射导体1的另一端。 利用从馈电点4向与RF电路中的特征导纳相等的自由空间的导纳电导分量,由与多个频率的馈电点4连接的谐振电路2抵消导纳的电纳分量。