Input control for appliances

摘要

A light-beam mover (21) moves a light-beam in the control field (1) depending on the light-beam motion signal, different positions or positional changes of the object in the control field associated to different reactions in the apparatus. The light beam mover and light sensor (11) for generating output signal depending on the reflected light-beam, are arranged at a side of control field where the object is introduced. Independent claims are also included for the following: (1) computer mouse; and (2) keyboard.