Radio frequency identification apparatuses
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United States of America Patent
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Aug 17, 2010
Grant Date -
Feb 28, 2008
app pub date -
Aug 29, 2007
filing date -
May 13, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
In one embodiment, a method includes transmitting a signal from a wireless transmitter to a radio frequency (RF) device of a plurality of RF devices within a communication range of the transmitter. The signal is to select a group of the RF devices. A reply signal is received from each RF device if the respective RF device determines that it is a member of the group.
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