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    Remote data transfer system with ambient light insensitive circuitry
    1.
    发明授权
    Remote data transfer system with ambient light insensitive circuitry 失效
    具有环境光不敏感电路的远程数据传输系统

    公开(公告)号：US5134277A

    公开(公告)日：1992-07-28

    申请号：US577796

    申请日：1990-09-05

    申请人： Michael J. Yerbury ,  Christopher J. Gamgee ,  Graeme J. Bullock ,  Peter L. Jones

    发明人： Michael J. Yerbury ,  Christopher J. Gamgee ,  Graeme J. Bullock ,  Peter L. Jones

    IPC分类号： A01K11/00 ,  A01K29/00 ,  G06K7/00 ,  G07C9/00

    CPC分类号： G07C9/00111 ,  A01K11/00 ,  A01K29/005 ,  G06K7/0008

    摘要： A remote data transfer system, particularly an identification system for identifying objects such as livestock, pets and containers. An interrogator generates a directional light beam which the operator can direct at a selected animal or package up to 30-14 200 meters away; and a tag transponder carried by the object is activated only on receipt of the light beam, and transmits a coded RF signal. The signal is received by the interrogator which displays the identity of the animal derived from the coded RF signal. In its "receive" mode, the tag transponder requires minimal power, thereby prolonging battery life. A short rise time light pulse (or a pulse sequence) is identified and used to switch power to the transponder. After transmission of the coded RF signal, the transponder returns to a low power draw stand-by state. The tag is also able to transmit real time information, with or without the tag identity data. Furthermore, the tag is able to accept data from a remote source and substantially simultaneously transmit data.

    摘要翻译： 远程数据传输系统，特别是用于识别诸如家畜，宠物和容器之类的物体的识别系统。 询问器产生定向光束，操作者可以在距离30-1400米处的所选择的动物或包装上引导; 并且由对象携带的标签应答器仅在接收到光束时被激活，并且发送编码的RF信号。 信号由询问器接收，该询问器显示从编码的RF信号导出的动物的身份。 在“接收”模式下，标签转发器需要最小功率，从而延长电池寿命。 识别短的上升时间光脉冲（或脉冲序列），并将其用于切换到应答器的电源。 在发送编码的RF信号之后，应答器返回到低功率待机状态。 该标签还能够发送具有或不具有标签标识数据的实时信息。 此外，标签能够接收来自远程源的数据并且基本上同时发送数据。