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Data entry system

  • US 5,984,548 A
  • Filed: 10/14/1998
  • Issued: 11/16/1999
  • Est. Priority Date: 09/22/1997
  • Status: Expired due to Term
First Claim
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1. A data entry system, comprising:

  • an ergonomic base adapted to be graspable by two hands of a user, said ergonomic base having an upper surface and a side surface;

    upper surface control means disposed on said ergonomic base upper surface and adapted for operation by either of two of a user'"'"'s digits to generate a first set of electrical signals, said first set of electrical signals representing a first portion of alphabetic characters of an alphabet; and

    ,side surface control means disposed on said ergonomic base side surface and adapted for operation by at least another of a user'"'"'s digits on either of the user'"'"'s two hands to generate a second set of electrical signals when operated independently of said upper surface control means, said second set of electrical signals representing a second portion of alphabetic characters of the alphabet, said first and second portions of alphabetic characters together representing at least a majority of alphabetic characters of the alphabet, said side surface control means generating a third set of electrical signals when operated in combination with said upper surface control means.

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