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HAPTIC DEVICE FOR POSITION DETECTION

  • US 20120293464A1
  • Filed: 05/20/2011
  • Published: 11/22/2012
  • Est. Priority Date: 05/20/2011
  • Status: Active Grant
First Claim
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1. A haptic stylus interface device, comprising:

  • a stylus capable of providing feedback forces, and having a surface contact ball capable of rotating in place;

    a communications module enabling information transfer with a computer;

    a contact ball gripping mechanism that responsively produces a variable contact ball friction force independent of the feedback forces; and

    a stylus proximity determination tool that determines the distance from the contact ball to the contact surface.

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