发明名称 |
METHOD AND APPARATUS FOR IMPROVING RECEPTION OF AN RFID TAG RESPONSE |
摘要 |
<p>A method and apparatus for improving reception of responsive RFID signals is provided. The method includes transmitting a plurality of interrogation signals each having a different polarization to activate one or more RFID tags. Responsive signals from the RFID tags are analyzed for receive symbol quality data to select a transmit polarization subset. These polarizations are then used for transmitting further interrogation signals to the RFID tags. The apparatus includes a dual element orthogonal radiator coupled to a transmitter and receiver. A processor controls the transmitter and receiver to transmit a series of RFID interrogation signals each having a different polarization, and receive a series of responsive signals from one or more RFID tags. The responsive signals are analyzed to select a particular a transmit polarization subset that will improve reception of future responsive signals from the RFID tags.</p> |
申请公布号 |
WO2014022048(A1) |
申请公布日期 |
2014.02.06 |
申请号 |
WO2013US48875 |
申请日期 |
2013.07.01 |
申请人 |
MOTOROLA SOLUTIONS, INC. |
发明人 |
CHAN, YIU KWONG,;SHACHAR, AVIV, |
分类号 |
G06K7/00;G06K7/10 |
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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