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    RADIO INTERROGATOR SYSTEM AND RADIO COMMUNICATION METHOD THEREOF
    1.
    发明公开
    RADIO INTERROGATOR SYSTEM AND RADIO COMMUNICATION METHOD THEREOF 有权
    无线电通信方法和无线电INTERROGATORSYSTEM THEREOF

    公开(公告)号：EP1772970A4

    公开(公告)日：2009-04-29

    申请号：EP04770948

    申请日：2004-07-27

    申请人： FUJITSU LTD

    发明人： TANAKA YOSHINORI ,  NINOMIYA TERUHISA ,  AOKI NOBUHISA

    IPC分类号： G06K7/00 ,  G06K17/00 ,  H04B1/59 ,  H04B5/02

    CPC分类号： G06K7/10356 ,  G06K7/0008

    摘要： A radio interrogator system wherein even if a plurality of radio interrogators are disposed relatively close to each other and operated at the same time, the interference with radio responsors can be reduced and the throughput degradation in the whole system can be improved. The plurality of radio interrogators (100-1 to 100-4) are divided into two groups. It is arranged that the radio interrogators have operation mode establishing parts (51) that can establish, exclusively to the respective groups, either a transmission mode in which to transmit radio transmission signals to radio responsors (40-1 to 40-4) or a reception mode in which to receive radio response signals transmitted from the radio responsors in response to the radio transmission signals from the radio interrogators.

    SHORT DISTANCE WIRELESS COMMUNICATION SYSTEM USING MOBILE TERMINAL AND WIRELESS COMMUNICATION DEVICE THEREFOR
    2.
    发明公开
    SHORT DISTANCE WIRELESS COMMUNICATION SYSTEM USING MOBILE TERMINAL AND WIRELESS COMMUNICATION DEVICE THEREFOR 审中-公开
    无线通信系统中短距离的移动终端和无线通信设备THEREFOR

    公开(公告)号：EP1467519A4

    公开(公告)日：2008-02-27

    申请号：EP02806399

    申请日：2002-01-10

    申请人： FUJITSU LTD

    发明人： IDANI SHIGEHIRO ,  NINOMIYA TERUHISA ,  NAKASHIMA YOSHIYASU ,  YAMADA ISAMU

    IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08

    CPC分类号： H04W76/023 ,  H04L67/04 ,  H04L67/14 ,  H04W28/18 ,  H04W88/04 ,  H04W88/16

    摘要： A wireless communication device (2), which is connected to a server (4) for providing information via a network (3) and is disposed at an access point for relaying information provision service by the server (4) to a portable terminal (1) having a short distance wireless communication function, includes a network interface (26) for connecting to the network (3), a wireless communication interface (21) for the short distance wireless communication with the portable terminal (1), a connection information exchange portion (25) for exchanging connection information for communication establishment with the portable terminal (1) prior to the short distance wireless communication with the portable terminal (1), and a wireless communication management portion (24) for controlling the exchange process of the connection information by the connection information exchange portion (25) and the communication establishment process with the portable terminal (1).