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Tactile character input in computer-based devices

  • US 6,326,947 B1
  • Filed: 03/02/1999
  • Issued: 12/04/2001
  • Est. Priority Date: 03/02/1999
  • Status: Expired due to Term
First Claim
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1. A character entry device comprising:

  • tactile character segment guides upon which characters can be traced by a human user;

    sensors associated with the segment guides to indicate when particular segment guides are traced; and

    decoding logic that compares ordered sequences of actually traced segments to a plurality of predefined ordered segment sequences to determine characters corresponding to the actually traced ordered segment sequences, at least some of the predefined ordered segment sequences including three or more segments.

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