A "double-touch" input method is described that is particularly suitable for use as a substitute for a "double-click" input from a mouse or trackball, and that is particularly suitable for use with a touch panel. Briefly, the input method involves contacting a touch panel at a first location (for example,...http://www.google.de/patents/US5943043?utm_source=gb-gplus-sharePatent US5943043 - Touch panel "double-touch" input method and detection apparatus
