发明名称 |
Radio frequency identification reader |
摘要 |
Radio Frequency Identification (RFID) readers with a directional coupler. At least one embodiment of the present invention provides an RFID reader designed to use a directional coupler to receive signals from an antenna which is connected to a radio frequency source of the reader to transmit signals. The directional coupler samples the signals received at the antenna and provides the received signal to a receiver of the RFID reader. In one example, the receiver of the RFID reader compares a portion of the signals from the radio frequency source with the received signal from the directional coupler to receive data from RF tags.
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申请公布号 |
US2005156039(A1) |
申请公布日期 |
2005.07.21 |
申请号 |
US20040993668 |
申请日期 |
2004.11.19 |
申请人 |
CARRENDER CURTIS L.;SPEIRS DONALD F. |
发明人 |
CARRENDER CURTIS L.;SPEIRS DONALD F. |
分类号 |
G06K7/00;(IPC1-7):G06K7/00 |
主分类号 |
G06K7/00 |
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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