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Radio frequency identification devices, backscatter communication device wake-up methods, communication device wake-up methods and a radio frequency identification device wake-up method

  • US 20040198233A1
  • Filed: 10/02/2002
  • Published: 10/07/2004
  • Est. Priority Date: 10/02/2002
  • Status: Active Grant
First Claim
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1. A wireless communication device comprising:

  • a processor configured to process a plurality of received wireless signals and to control the communication of a plurality of outputted wireless signals, wherein the processor is configured to control the communication of the outputted wireless signals using backscatter modulation;

    circuitry coupled with the processor and configured to control operations of the processor; and

    wherein the processor is configured to output a reference signal responsive to detection of radio frequency energy, the circuitry is configured to analyze the reference signal and the radio frequency energy, and the processor is configured to enter a predefined mode of operation utilizing an increased amount of electrical energy responsive to the analysis of the reference signal and the radio frequency energy by the circuitry.

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