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Haptic trackball device

  • US 20020054011A1
  • Filed: 02/18/2000
  • Published: 05/09/2002
  • Est. Priority Date: 06/23/1998
  • Status: Active Grant
First Claim
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1. A haptic feedback trackball device coupled to a host computer implementing a host application program, said haptic feedback device used by a user to provide input to said host computer, the haptic feedback device comprising:

  • a housing that is physically contacted by said user, said housing resting on a support surface;

    a sphere positioned in said housing, said sphere rotatable in two rotary degrees of freedom;

    a sensor device coupled to said housing of said mouse, said sensor device detecting said movement of said sphere in said rotary degrees of freedom and outputting sensor signals representative of said movement; and

    an actuator coupled to said housing of said device, said actuator operative to apply a force to said housing approximately along an axis that is substantially perpendicular to said support surface, wherein said force is transmitted to said user contacting said housing.

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