04914624 is referenced by 370 patents and cites 3 patents.

Apparatus and methods for creating a virtual push button comprise a touch sensitive orthogonal data field input device useably connected within a computing system in which a touch action at the device generates a stream of data related to the location within the field of the touch action. The orthogonal data field input device includes circuitry for sensing the onset of a first touch action and for monitoring the continuity thereof; and the computing system including a second condition sensor for sensing the occurrence of a second predetermined condition; and, computing circuitry for generating the virtual push button upon the concurrence of touch action continuation and the occurrence of the second predetermined condition.

Title
Virtual button for touch screen
Application Number
7/191227
Publication Number
4914624
Application Date
May 6, 1988
Publication Date
April 3, 1990
Inventor
David I Dunthorn
908 W. Outer Dr., Oak Ridge, 37830
TN, US
Agent
David B Harrison
IPC
G06F 3/02
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