Patent AT-E400842-T1: [Translated] DEVICE EQUIPPED WITH AN OPTICAL KEYBOARD AND AN OPTICAL INPUT DEVICE

An apparatus includes an optical keyboard and an optical input device controlled by a moving object. The input device has at least one diode laser and photo diode for supplying at least one measuring beam to a device window and for receiving radiation reflected by the object placed on the window. The input device may be integrated in the keyboard such that the measuring beam is guided via the positions of the keys to the window.