Electronic pointing apparatus and method

  • US 5,825,350 A
  • Filed: 08/04/1997
  • Issued: 10/20/1998
  • Est. Priority Date: 03/13/1996
  • Status: Expired due to Term
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First Claim
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1. A method for generating movement data indicative of a direction and a distance a display or a displayed cursor on a computer-controlled display screen is to be moved in response to movement of a pointing apparatus, wherein the pointing apparatus includes a gyroscopic element, the method comprising the steps of:

  • sampling an output of the gyroscopic element, the output indicating movement of the pointing apparatus;

    generating the movement data from the sampled output;

    determining whether the movement data indicates that the pointing apparatus has moved at least a first threshold amount;

    in response to the movement data indicating that the pointing apparatus has not moved at least the first threshold amount, altering the movement data to indicate that the pointing apparatus has not moved; and

    in response to the movement data indicating that the pointing apparatus has moved at least the first threshold amount, determining whether the movement data indicates that the pointing apparatus has moved at least a second threshold amount; and

    in response to determining that the movement data indicates that the pointing apparatus has not moved at least the second threshold amount, reducing an amount of movement indicated by the movement data.

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