The invention disclosed herein describes a man-machine interface device for controlling access to electronic devices. The man-machine interface device comprises an electronic display unit including a transparent finger touch sensor region that is seated above the display apparatus, which is responsible...http://www.google.es/patents/US7688314?utm_source=gb-gplus-sharePatente US7688314 - Man-machine interface for controlling access to electronic devices
Man-machine interface for controlling access to electronic devices
