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33 条记录 (耗时 0.015 秒)

    Wireless tag
    7.
    发明公开
    Wireless tag 有权
    Drahtloses Etikett

    公开(公告)号：EP2341468A1

    公开(公告)日：2011-07-06

    申请号：EP10194650.7

    申请日：2010-12-13

    申请人： FUJITSU LIMITED

    发明人： Kai, Manabu ,  Ninomiya, Teruhisa ,  Baba, Syunji

    IPC分类号： G06K19/04 ,  G06K19/077 ,  G11B23/00 ,  H01Q1/38

    CPC分类号： G06K19/041 ,  G06K19/045 ,  G06K19/07749 ,  G11B23/0042 ,  H01Q1/2225 ,  H01Q1/48 ,  H01Q13/106

    摘要： The present invention provides a wireless tag to be attached onto a disc-shaped recording medium including first and second regions. The first region, made of a nonconductive member, is disposed on the inner radial part of the recording medium, whereas the second region, including a conductive member, is disposed on the outer radial part of the recording medium. The wireless tag includes: a feed section connected to a wireless IC chip; a conductive plate including a slot therein; and a slot antenna for receiving power from the feed section. The conductive plate is formed for at least partially overlapping with the second region when the wireless tag is attached onto the inner radial part of the recording medium. The slot has a length set for obtaining an inductance enough to cause a resonance between the slot antenna and the wireless IC chip at a predetermined wireless frequency.

    摘要翻译： 本发明提供一种要附着到包括第一和第二区域的盘形记录介质上的无线标签。 由非导电构件制成的第一区域设置在记录介质的内部径向部分上，而包括导电构件的第二区域设置在记录介质的外部径向部分上。 无线标签包括：连接到无线IC芯片的馈电部分; 导电板，其中包括槽; 以及用于从馈电部分接收电力的缝隙天线。 当无线标签附着到记录介质的内部径向部分上时，导电板形成为与第二区域至少部分重叠。 该槽具有一定长度，用于获得足以在预定无线频率下引起缝隙天线与无线IC芯片之间的谐振的电感。

    Antenna, tag communication apparatus, and reader-writer system
    8.
    发明公开
    Antenna, tag communication apparatus, and reader-writer system 有权
    RFID Etikett Lese- / Schreibsystem

    公开(公告)号：EP2309414A1

    公开(公告)日：2011-04-13

    申请号：EP10176271.4

    申请日：2010-09-10

    申请人： Fujitsu Limited

    发明人： Kai, Manabu ,  Ninomiya, Teruhisa

    IPC分类号： G06K7/08 ,  G06K7/10 ,  H01Q1/22

    CPC分类号： G06K7/10316 ,  G06K7/10178 ,  G06K7/10336 ,  G06K7/10346 ,  G06K19/07796 ,  H01Q1/2216 ,  H01Q1/38 ,  H01Q9/42

    摘要： A first antenna section included in an antenna has a first conductor, supplies electric power to a plurality of stacked tags, and transmits electromagnetic waves to and receives electromagnetic waves from the plurality of tags. One end of the first conductor is a feeding point and an other end of the first conductor is an open end. The first conductor is connected to a reader-writer device for communicating with the plurality of tags. The first conductor can output electromagnetic waves. A second antenna section included in the antenna has a second conductor one end of which is a feeding point, an other end of which is an open end, and which is opposite to the first conductor of the first antenna section with the plurality of tags therebetween.

    摘要翻译： 包括在天线中的第一天线部分具有第一导体，向多个堆叠的标签提供电力，并且向多个标签发送电磁波并接收电磁波。 第一导体的一端是馈电点，第一导体的另一端是开口端。 第一导体连接到用于与多个标签通信的读写器设备。 第一根导体可以输出电磁波。 包括在天线中的第二天线部分具有第二导体，其一端是馈电点，其另一端是开口端，并且与第一天线部分的第一导体相对，其间具有多个标签 。

    Carrier sensing method and RFID transeiver device using the same
    9.
    发明授权
    Carrier sensing method and RFID transeiver device using the same 有权
    载波侦听方法及使用该方法的RFID收发装置

    公开(公告)号：EP1710726B1

    公开(公告)日：2017-11-22

    申请号：EP05254650.4

    申请日：2005-07-26

    申请人： FUJITSU LIMITED

    发明人： Ninomiya, Teruhisa ,  Tanaka, Yoshinori

    IPC分类号： G06K7/00 ,  G06K19/07

    CPC分类号： G06K7/10069 ,  G06K19/07

    摘要： An RFID transceiver device is proposed capable of carrier sensing even when the difference in the carrier frequency between two systems is close to "0". The device includes a control and signal processing circuit (10); a local oscillation circuit (11) that generates a local oscillation signal of frequency that is specified by said control and signal processing circuit; and a reception circuit (14) that demodulates the reception signal using the local oscillation signal frequency that is output from said local oscillation circuit (11); wherein the control and signal processing circuit (10) performs control so as to output, to the local oscillation circuit (11), a local oscillation signal of a reference frequency in the case of ordinary communication, and output, to the local oscillation circuit, a local oscillation signal shifted by a prescribed frequency with respect to said reference frequency in the case of carrier sensing, as a local oscillation signal for demodulating the reception signal in the reception circuit (14).