Electronic data processing input device for receiving and transmitting user data, has power supply system with data connection, and internal storage representing contents on buttons

摘要

The device has a set of keys provided on an upper surface and mechanically separating a set of functional units from each other. The keys are integrated imaging modules i.e. displays, which include various graphical segments for representing different symbols and pictures. A power supply system has data connection, and an internal storage represents contents on the buttons. A distribution module automatically distributes detailed imaging signal to the buttons, and the contents and functions are permutated on the buttons by a permutation module.