Method and apparatus for an arbitration scheme for radio frequency identification devices
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United States of America Patent
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Dec 29, 2009
Grant Date -
Sep 21, 2006
app pub date -
May 2, 2006
filing date -
Feb 19, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
RFID tags are identified. In one embodiment, RFID tags may be chosen to respond to an interrogator in accordance with an arbitration scheme. According to one arbitration scheme, each chosen tag may randomly pick a slot value. The interrogator may indicate that the number of slot values is to be adjusted. Each chosen tag may respond to the interrogator with a random number.
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