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RFID-BASED INPUT DEVICE

  • US 20100289744A1
  • Filed: 07/30/2010
  • Published: 11/18/2010
  • Est. Priority Date: 07/30/2010
  • Status: Active Grant
First Claim
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1. An input device for use with a computer system, the input device comprising:

  • an array of antennas for transmitting and receiving radio frequency signals;

    a portable unit operating within radio frequency range of the array of antennas, said portable unit comprising;

    a transmitting radio frequency circuit powered by the radio frequency signals transmitted by the array of antennas;

    wherein a location of the portable unit is estimated by the radio frequency signals transmitted from the portable unit to a processor device.

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