Method for communicating with RF transponders
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United States of America Patent
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Nov 30, 1999
Issued Date -
N/A
app pub date -
Jul 6, 1998
filing date -
Sep 30, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A method of selecting groups of radio frequency RF transponders (tags) for communication between a base station and the tags. The tags are selected into groups according to a physical attribute of the signal sent by the tags to the base station, or according to the physical response of the tags to a physical attribute of the signal sent from the base station to the tags. Communication with the tags is thereby simplified, and the time taken to communicate with the first tag is markedly reduced.
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