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Data input unit

  • US 5,929,841 A
  • Filed: 01/31/1997
  • Issued: 07/27/1999
  • Est. Priority Date: 02/05/1996
  • Status: Expired due to Term
First Claim
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1. A data input unit comprising:

  • an input unit for indicating an arbitrary spatial position;

    a detecting unit for detecting three-dimensional position information corresponding to the spatial position as an absolute coordinate from said detecting unit;

    a processing unit including an operating section for converting the three-dimensional position information into position information represented by a coordinate in a specific plane and a height in an axial direction perpendicularly intersecting to the plane, a memory section for storing the position information converted by said operating section, and an I/O section for outputting display information which is changed according to a size of the height information taken out from said memory section; and

    an output unit for displaying a two-dimensional display of the spatial position of said input unit based upon the display information from said processing unit.

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