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Data input system

  • US 4,211,497 A
  • Filed: 03/13/1978
  • Issued: 07/08/1980
  • Est. Priority Date: 03/01/1974
  • Status: Expired due to Term
First Claim
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1. A keyboard apparatus comprising:

  • means defining a plurality of keys including at least one key individual to each of selected ones of the letters comprising the standard 26 letter alphabet arranged in a plurality of rows;

    the keys being positioned in a predetermined array characterized by the positioning of selected keys individual to selected letters that are frequently used in sequence adjacent one another and in accordance with such sequence, and including the following groupings;

    the positioning of keys individual to the letters T, H and E adjacent one another and in sequence;

    the positioning of keys individual to the letters I, N and G adjacent one another and in sequence;

    the positioning of keys individual to the letters A, N and D adjacent one another and in sequence;

    the positioning of keys individual to the letters I, O and N adjacent one another and in sequence; and

    the positioning of keys individual to the letters O, N and E adjacent one another and in sequence;

    the keys having actuating surfaces each normally positioned for cooperation with the actuating surfaces of the remaining keys to define a predetermined surface configuration;

    means extending between the keys and comprising a generally regular continuation of the predetermined surface configuration for facilitating sliding movement of the fingers of an operator between adjacent keys, the sliding movement being substantially parallel to the predetermined surface configuration without requiring substantial movement of the fingers of the operator in direction generally normal to the predetermined surface configuration thereby providing for the sequential actuation of one of the predetermined array of keys by a sliding action of a single finger of the operator across the keys comprising the predetermined array of keys; and

    each of the keys being adapted for actuation in response to minimum movement of the fingers of an operator perpendicular to the predetermined surface configuration.

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