Compact touch-type keyboard

摘要

A floating button that may be used to replace a plurality of distinct buttons and/or a graphical pointing device. The floating button translates in a region defined by a housing. A sensor detects the location of the button in the region. The locations within the region may be mapped to a plurality of virtual buttons. This permits a button of a size appropriate for comfortable operation by a finger, while allowing the selection of a large number of functions in a space that is only somewhat larger than a single button. The location of the button within its translation region also provides an immediate tactile and visual reference as to the function to be selected.