发明名称 |
ANTICOLLISION PROTOCOL FOR READING MULTIPLE RFID TAGS |
摘要 |
A method of reading multiple RFID tags (10) located in a field of an interrogating antenna (26) is based on periodic transmissions from the tags with large, non-transmission intervals between transmissions. The non-transmission intervals are fixed for a given tag, but are random between tags, preferably due to manufacturing tolerances in electrical components from which the tag is constructed, such that no coordination of transmissions from the interrogating antenna is required.
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申请公布号 |
WO9835327(A1) |
申请公布日期 |
1998.08.13 |
申请号 |
WO1998US01020 |
申请日期 |
1998.01.22 |
申请人 |
CHECKPOINT SYSTEMS, INC. |
发明人 |
BOWERS, JOHN, H.;DAIGLE, JOHN, NELSON;PETROVIC, RADE |
分类号 |
G06K7/00;G08B13/24;(IPC1-7):G08B13/14 |
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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