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Smart tag activation

  • US 7,604,178 B2
  • Filed: 05/11/2005
  • Issued: 10/20/2009
  • Est. Priority Date: 05/11/2005
  • Status: Active Grant
First Claim
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1. A method for activating a device, comprising:

  • listening for an activate command at a device;

    receiving the activate command, the activate command including an activate code;

    activating the device in a first high power mode if the activate code matches one of a plurality of values stored in the device; and

    activating the device in a second high power mode if the activate code matches another of the plurality of values stored in the device,wherein activating the device includes the steps in the device of;

    listening, in a low power mode, for the activate command,receiving a signal that may or may not be the activate command,determining based on an interrupt signal whether the signal is the activate command, andpowering up the device in the corresponding high power mode if the activate code is determined to match one of the plurality of prestored values.

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