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Integrating graphics input device

  • US RE35,342 E
  • Filed: 10/29/1992
  • Issued: 10/01/1996
  • Est. Priority Date: 11/20/1989
  • Status: Expired due to Term
First Claim
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1. A graphics input device, comprising:

  • a case assembly;

    a penlike stylus;

    a graphics entry area mounted to the case assembly;

    an XY positioning assembly mounted to the case assembly for moveably positioning the stylus on the case assembly with respect to the graphics entry area;

    an XY position signal generator mounted to the case assembly for generating graphics entry signals representative of movement of the stylus with respect to the graphics entry area;

    the XY position signal generator including an XY position sensor defining the graphics entry area;

    the XY positioning assembly including a carriage assembly mounted to the case assembly for moveably positioning the stylus with respect to the XY position sensor, the carriage assembly including a substantially circular aperture corresponding to the graphics entry area, the circular aperture positioned adjacent the XY position sensor;

    the XY positioning assembly further including means mounted to the case assembly for retaining the stylus for movement within the circular aperture against the XY position sensor;

    a gap mounted to the case assembly apart from the stylus; and

    a force vector signal generator mounted to the case assembly which generates a force vector signal representing a change of a graphics entry area location in response to manipulation of the grip.

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