| 摘要 |
<p>PURPOSE:To prevent wire-tapping and robbery including a software by controlling the turn-on of one part or the entire parts of a system power source when specified code information for the system power source turn-on control is inputted. CONSTITUTION:In the control processing of robbery-proof at a power source control processor 2, the contents of a C flag showing the setting of a robbery- proof function received from a CPU in the set processing routines of various flags are stored in an inside RAM 5, in the case of turning on the system power source, it is judged whether a power on key code is inputted from a ten key pad 41 or not and when the power on key code is inputted, a P flag showing the presence/absence of the input is turned on. When the P flag is turned on, it is judged whether the inputted power on key code is coincident with a set power on key code or not, when they are coincident, the key lock of power on (to turn on the system power source) is canceled, and a power on processing with the on operation of a power supply switch 6 is enabled for the first time.</p> |
