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Systems and methods having LPRF device wake up using wireless tag

  • US 20050093703A1
  • Filed: 11/12/2004
  • Published: 05/05/2005
  • Est. Priority Date: 12/22/2000
  • Status: Active Grant
First Claim
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1. An asset-tracking system having a wireless transceiver that may be used to read one or more wireless tags (WTs) that are disposed externally to and in proximity thereof, the wireless transceiver (WRT) comprising:

  • (a) a low power radio frequency (LPRF) communications component capable of powering down to conserve energy and capable of powering up in response to an electronic signal, the LPRF communications component including a transmitter and a first receiver; and

    (b) a second receiver providing in response to receipt by the second receiver of a radio frequency broadcast the electronic signal in order to power up the LPRF communications component.

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