发明名称 Radio-frequency identification (RFID) tag employing unique reception window and method therefor
摘要 A radio-frequency identification (RFID) tag employing a unique reception window and method for operating the tag system provides low-power operation for enhanced tag battery life, while providing addressable tags that can receive commands and data from the system, which can be a wireless local area network (WLAN) incorporating location finding for locating the tags. Interference with other tags and other transmitters is prevented by either using a sniffer circuit to determine that no network transmission is in progress, or by using a special non-interfering coding sequence. A receiver within the tag is operated for a predetermined period of time after a periodic transmission is made from the tag, and an address decoder determines if the tag is being addressed. The receiver can receive data and/or commands after being addressed and is shutdown if the window time elapses, the tag is not addressed, or at the completion of data/command transfer.
申请公布号 US7295115(B2) 申请公布日期 2007.11.13
申请号 US20050059047 申请日期 2005.02.16
申请人 AEROSCOUT, LTD. 发明人 ALJADEFF DANIEL;AMSALEM REUVEN
分类号 G08B13/14;G01S5/06;G01S13/76;G01S13/87 主分类号 G08B13/14
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