Joystick operated positioning device for a computer
Joystick switching device
Joystick with improved actuator
Joystick with membrane sensor
Joystick with uniform center return force
Karaoke data processing system and data processing method
Key arrangement for a keyboard
Key code filter apparatus and method
Key customizing method and portable terminal device
Key data input device and mobile communication terminal...
Key event controlling apparatus
Key free mouse
Key functionality for communication terminal
Key input device
Key input device
Key input device and character input method using...
Key input device and portable telephone incorporating same
Key input device having Braille input function
KEY LAYOUT SETTING APPARATUS TO LAY OUT PLURALITY OF KEYS...
Key lock means and application method of the same