초록 ▼

Typically twelve keys are arranged for one-hand touch typing in alphanumeric data processors permit a single finger to choose either single keys or multiplicities of side-by-side keys to give enough selection for alpha processing and to arrange keys conveniently about the fingers for touch typing. T

Typically twelve keys are arranged for one-hand touch typing in alphanumeric data processors permit a single finger to choose either single keys or multiplicities of side-by-side keys to give enough selection for alpha processing and to arrange keys conveniently about the fingers for touch typing. Tactile feedback structural patterns including indentations and raised surface portions identify single keys and intersections of two and three keys where the finger strokes occur. By providing three key intersections a larger number of different selections of input data characters or control functions may be entered with fewer keyboard keys.

대표청구항 ▼

In a touch type data processor keyboard assembly system of the type having a field of side-by-side keys arranged on a keyboard field for selective manual actuation by the stroke of a single finger of either selected keys individually or multiplicities of simultaneously actuated side-by-side keys arr

In a touch type data processor keyboard assembly system of the type having a field of side-by-side keys arranged on a keyboard field for selective manual actuation by the stroke of a single finger of either selected keys individually or multiplicities of simultaneously actuated side-by-side keys arranged in said field by bridging the multiplicity of keys with a single finger, the improvement comprising: three differing tactile feedback patterns placed in the keyboard field to define finger placement positions for actuating respectively one key, two keys simultaneously and more than two keys simultaneously wherein said patterns comprise keys of different surface configuration, wherein the three differing tactile feedback patterns constitute raised, indented and substantially flat surface configurations.