Systems and methods having LPRF device wake up using wireless tag
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United States of America Patent
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Dec 26, 2006
Issued Date -
N/A
app pub date -
Nov 12, 2004
filing date -
Dec 22, 2000
priority date (Note) -
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Abstract
Systems and methods utilized a wireless transceiver (5008) having a low power radio frequency (LPRF) component (5010) that powers down to conserve energy and powers up in response to a signal; and a second receiver (5014) that provides the signal via line (5018) in response to receipt of a radio frequency broadcast. The broadcast is targeted to activate particular transceivers by including in the broadcast identifications such as class designations, in which case the transceivers power up and form networks. A transceiver may include one or more identifications and may include a unique identification of the transceiver itself. The LPRF component may be a Bluetooth radio, but in such case the overall transceiver itself only draws about 10 to 15 .mu.A while actively awaiting and screening for a targeted broadcast.
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