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Method and system for inputting coordinates using digitizer

  • US 5,146,049 A
  • Filed: 01/22/1991
  • Issued: 09/08/1992
  • Est. Priority Date: 01/22/1990
  • Status: Expired due to Fees
First Claim
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1. A system for inputting coordinates using a digitizer, comprising:

  • a display device provided with a display which has a first area;

    a digitizer coupled to said display device and provided with a pointing region which has a second area smaller than the first area;

    a pointing device coupled to said digitizer for pointing an arbitrary dot position on the pointing region of said digitizer; and

    control means coupled to said display device and said digitizer for controlling display information on the display of said display device so that a pointing area which is displayed on the display is smaller than the first area and corresponds to the pointing region of said digitizer and a dot pointed by said pointing device on the pointing region of said digitizer is displayed within the pointing area, said pointing region of the digitizer including a number of dots which is greater than or equal to a number of dots included in the pointing area of the display,said control means including means for moving the pointing area on the display in an arbitrary direction depending on a specific part of the pointing region which is pointed by said pointing device.

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