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Electronic drawing device

  • US 5,604,517 A
  • Filed: 01/14/1994
  • Issued: 02/18/1997
  • Est. Priority Date: 01/14/1994
  • Status: Expired due to Fees
First Claim
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1. An interactive drawing device for use with a drawing instrument, the interactive drawing device comprising:

  • a housing;

    a drawing tablet disposed in the housing and having a drawing surface, the drawing tablet being adapted to generate a series of electrical pulses in response to a drawing instrument moving across its drawing surface, the frequency with which the electrical pulses occur being substantially proportional to the speed of the moving drawing instrument, the individual electrical pulses of the series being substantially the same regardless of the position of the drawing instrument when the drawing instrument moves across the drawing surface at a constant speed;

    a sound generating computer electrically connected to the drawing tablet for receiving the electrical pulses generated by the translation of the drawing instrument across the drawing surface of the drawing tablet and for generating output signals in response thereto; and

    an audible device connected to the sound generating computer for receiving the output signals and for converting the output signals into an audible output, the tempo of the audible output corresponding to the frequency at which the electrical pulses generated by the drawing tablet occur.

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