The mobile phone looks exactly like a conventional cell phone. The pen for writing and telephoning is kept in the side of the bracket and features a built-in microphone and speaker. The signals are transmitted via Bluetooth. A distance sensor recognizes when a user is holding the pen to his or her ear and automatically reduces the volume. To write with the virtual keypad, the user simply “types” with the pen on the projected image. Sophisticated sensor technology recognizes the pen’s position in real time.
The demonstration model of the latest mobile phone isn’t fully functional cell phone yet. At CeBIT, a laptop was used to handle the telephone functions. It hasn’t yet been decided whether Siemens will further develop this technology and launch a mobile phone equipped with this system on the market.
