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Three-dimensional cursor control device

  • US 5,296,846 A
  • Filed: 10/05/1992
  • Issued: 03/22/1994
  • Est. Priority Date: 10/15/1990
  • Status: Expired due to Fees
First Claim
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1. In a system for displaying a three-dimensional stereoscopic image of an object positioned in a displayed three-dimensional volume;

  • a cursor control device comprising a housing defining a volume corresponding to the displayed three-dimensional volume, said device further comprising joystick means operable by the suer for moving the positioning a cursor in the displayed three-dimensional volume, wherein said joystick means includes a knob which is movable from one position to another within the volume defined by said housing;

    said joystick means further comprising a base portion, an upper portion mounted on said base portion, and a shaft having a first end connected to said upper portion and a second end, said knob being positioned on said second end of said shaft;

    said device further comprising potentiometer means responsive to movement of said upper portion relative to said base portion for generating an electrical signal corresponding thereto, said potentiometer means comprising a resistance strip disposed beneath said upper portion and a potentiometer slider extending from said upper portion to said resistance strip.

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