| 摘要 |
PURPOSE:To avoid the breakdown of a system by separating an abnormal part in case the input is possible via a touch sensor or a keyboard and accepting the input from the touch sensor or the keyboard only. CONSTITUTION:A control mechanism 8 performs the transaction control jobs including a process of the operation input data, etc. While a touch sensor abnormality detecting mechanism 10 and a keyboard abnormality detecting mechanism 11 detects the abnormal actions of a touch sensor input mechanism 3 and a keyboard input mechanism 4 respectively. An OR gate 16 always applies the OR to the data received from both mechanisms 3 and 4 and transmits these data to the mechanism 8. In case the mechanism 10 detects the abnormality of a touch sensor, the input given from the touch sensor is prevented. While the input given from a keyboard is prevented in case the mechanism 11 detects the abnormality of the keyboard. Thus the abnormal touch sensor or keyboard is separated in an operation mode and therefore the breakdown of a system can be avoided. |
