AN ATTACHABLE INPUT DEVICE ON MOBILE UNIT

摘要

PURPOSE: An attachable input device on a mobile unit is provided to embody a wireless mouse function by the power source from a mobile terminal. CONSTITUTION: A first protective cover(100) is attached to a single-side of the portable phone(300). A plurality of input units(114) outputs the signal generated by pressurized or rotation. The first connection unit(225) of the second protective cover(200) is electrically connected to the cellular phone. The second connection unit(226) is applied the power source from outside. A light receiving element(212) of the optical sensor(210) senses the light which is emitted from the emitting device(211) and is reflected to the floor side and the position signal is outputted. A mouse motion information in which the microprocessor(220) is acknowledged as the location of the mouse pointer and selection of the mouse menu is processed.