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FINGER POINTING APPARATUS

  • US 20090046059A1
  • Filed: 08/14/2008
  • Published: 02/19/2009
  • Est. Priority Date: 08/15/2007
  • Status: Active Grant
First Claim
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1. A finger pointing apparatus, comprising:

  • at least one pressure sensor fixed on a hand, configured to generate a trigger signal when pressure is produced by a finger contacting an external object;

    at least one electromagnetic wave transmitter corresponding to the at least one pressure sensor, in data communication with the pressure sensor, fixed on the hand, and configured to transmit a first electromagnetic wave after receiving the trigger signal;

    at least two electromagnetic wave receivers arranged at fixed positions with respect to each other, each receiver configured to receive the first electromagnetic wave and configured to generate a second electromagnetic wave and a third electromagnetic wave; and

    a microprocessor in data communication with the at least two electromagnetic wave receivers, configured to calculate coordinate values of a position pressed by the finger based on the second electromagnetic wave and the third electromagnetic wave and configured to output the coordinate values.

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