| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a flash ROM data management device capable of managing data by more accurately predicting a marginal time at which data retained in a flash ROM possibly disappears. <P>SOLUTION: A control circuit 2 predicts a retainable time TId of data retained in the flash ROM 14 on the basis of the device characteristic and state of use of the flash ROM 14 being a device for retaining data of a navigation system 1 for vehicle, and rewrites the data retained in the flash ROM 14 before the retainable time TId elapses. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
