发明名称 |
VERBESSERTES IDENTIFIKATIONSSYSTEM |
摘要 |
A method and an identification system for communicating between a reader (10) and a plurality of transponders (1,2,3) are disclosed. The reader (10) has a transmitter (11) for transmitting a signal and each transponder (1,2,3) includes a receiver for receiving the reader signal and a transmitter for generating a transponder signal. When the reader (10) recognises a transponder signal from one of the transponders (1) it immediately issues a mute instruction, muting all other active transponders (2,3) and passing control to the said transponder (1), without the need for a specifically timed acknowledgement to the said controlling transponder (1). The reader (10) may issue a single disable/wakeup instruction which disables the controlling transponder (1) returning control to the reader (10) and reactivated all muted (but not disabled) transponders.(2,3). <IMAGE> |
申请公布号 |
AT250781(T) |
申请公布日期 |
2003.10.15 |
申请号 |
AT19980921613T |
申请日期 |
1998.05.14 |
申请人 |
BTG INTERNATIONAL LIMITED |
发明人 |
ATKINS, RAYMOND, CATHERALL;MARIAS, MARIO, ALPHONSO;VAN ZYL SMIT, HENDRIK |
分类号 |
G06K19/07;G06K7/00;G06K7/08;G06K7/10;G06K17/00;H04B1/59;H04B5/02;(IPC1-7):G06K7/08 |
主分类号 |
G06K19/07 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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