| 摘要 |
<p>PURPOSE:To input a command without using another input device such as a keyboard so as to improve working efficiency. CONSTITUTION:An optical signal reading part 1 reads an optical signal from a pad exclusively used for inputting the coordinates and a bar code, and converts it into a digial signal. A signal identifying part 2 identifies the signal set from the optical signal reading part 1, and identifies whether the signal is a coordinate signal or a command signal by the bar code, and sends the signal respectively to a coordinate signal converting part 3.1 or a command signal converting part 3.2. The coordinate signal converting part 3.1 and the command signal converting part 3.2 receiving the signals transmit the signals to a host interface 4 after converting them respectively into the signals matched with the host interface.</p> |
