Patent ID: 6384743
Filing Date: 2002-05-07
Classification: G06F,G09B

Abstract:
A touch screen for the vision-impaired comprising:(1) an electronic display screen having a display area; (2) a touch panel commensurate with the display area and providing a coordinate output indicating a touch point in the display area; (3) an electronic computer communicating with the electronic display screen, the touch panel and executing a stored program to: (a) display a plurality of first virtual buttons on the display screen having arbitrary locations within the display area; (b) respond to a touching of one of the plurality of first virtual buttons to execute a subroutine associated with the touched virtual button; (c) generating a plurality of second virtual buttons having a one-to-one correspondence with the first plurality of virtual buttons but arranged on the display screen in a linear array; and (d) respond to a touching of a given one of the plurality of second virtual buttons to execute a subroutine associated with a first virtual button corresponding to the given second virtual button.