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Single hand keyboard arrays providing alphanumeric capabilities from twelve keys

  • US 4,891,777 A
  • Filed: 05/13/1986
  • Issued: 01/02/1990
  • Est. Priority Date: 05/11/1983
  • Status: Expired due to Term
First Claim
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1. A keyboard system comprising in combination, a plurality of manually actuable keys utilizable for manual entry of designated unique data selections such as numerical digits by strokes of a single finger of single keys, utility means comprising an electronic computer for initiating a multiplicity of different data processing operations uniquely selectable as entries by manual actuation with said single finger of said keys, communication means linking the keys to the utility means to effect said data processing operations from unique sets of keys actuated in sequence, means for establishing different ones of said operations in response to a sequence of a fixed number (X) of sequential manual actuations of said keys by said single finger, X being at least two, whereby X and only X sequential key strokes serves to select the different ones of said operations, and means for establishing a program entry mode of computer operation providing selected ones of said data processing operations as program steps in response to manual actuation of said keys thereby to actuate individual ones of said program steps in said program entry mode, thereby providing for entry of a program from the keyboard by a set of defined selection codes each consisting of a sequence of X sequential finger strokes.

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