| 摘要 |
PURPOSE: A portable keyboard is provided to make a user easily hold the keyboard by replacing a conventional key with a small number of keys, to join with a mouse as a single body, and to input the key with one hand. CONSTITUTION: The portable keyboard comprises a key matrix(220), a microcomputer(210), a pointing device(230), an LED(Light Emitting Diode) display, a beep generating part(250), and an interface(260). The controller scans the key matrix and generates a corresponding scan code. The interface transmits a key code value provided from the controller to a main body of a computer. The key matrix includes an input mode key and the keys generating more than two codes different with each other by the input mode key setting.
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