| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a memory device and an on-board navigation system which can quickly start even in low temperatures. <P>SOLUTION: This memory device 5 has a memory 35 to store information, a driver 39 to turn the memory 35, a head to record or reproduce information on the memory 35 turned by the driver 39, a sensor to detect the temperatures of the sliders 97, 98, 99 when turning, PTC heaters 113, 117 to heat the sliders 97, 98, 99, and a controller to turn on the PTC heaters 113, 117 when the temperatures detected by the sensor are not higher than the predetermined reference temperature T1. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
