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Pen input device

  • US 5,754,169 A
  • Filed: 12/29/1994
  • Issued: 05/19/1998
  • Est. Priority Date: 03/07/1994
  • Status: Expired due to Term
First Claim
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1. A pen input device comprising:

  • a tablet having a display screen for displaying displayed images and an input screen integral with the display screen;

    an input pen for performing coordinate specifying input by contact with said input screen and hand-writing input by contact scanning on said input screen;

    pen position recognizing means for recognizing whether said input pen is in a near position or a remote position with respect to said input screen; and

    display processing means for changing displayed images on said display screen when said input pen is in the near position by said pen position recognizing means,wherein the operation of said display processing means is released in response to recognition of the remote position performed by said pen position recognizing means so as to display unchanged displayed images.

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