| 摘要 |
<p>PROBLEM TO BE SOLVED: To protect the secrecy of information by comparing position informa tion with a current position and protecting the information stored in an informa tion processor, based on the compared result. SOLUTION: A position detection part 120 detects the current position of information processor based on an inputted signal and outputs this detected result to a comparator part 140. The comparator part 140 compares the current position of information processor inputted from the position detection part 120 with initial position information stored in a position information storage part 130 and discriminates whether the both are coincident or not. When they are coincident, the comparator part 140 waits the input of the new detected result from the position detection part 120. When they are not coincident, on the other hand, the comparator part 140 reports non-coincidence to a function control part 150. Corresponding to this report, the function control part 150 executes processing for protecting the information stored in the information processor.</p> |
