Detachable joystick device for attachment to a mobile phone comprises a joystick lever that interacts with the cursor keys of the phone's normal keypad to improve mobile phone game playing

摘要

Telecommunications terminal or mobile phone (10) has an additional detachable extension (1) with a pivoting control lever (3) that interacts with the keys (2, 4, 6, 8) of the phone's standard keypad to provide an extended games capability. The invention also relates to a corresponding extension for attachment to a mobile phone housing to provide a joystick type capability.