| 摘要 |
PURPOSE: A navigation system is provided to be easily installed, and maintained and repaired, and simplify the construction of the navigation system by embedding a navigation main calculation part inserting a map memory stick by each area into an audio/video head unit. CONSTITUTION: A navigation system includes a map memory stick(21) having a key pad, a display, and function selection buttons in front surface of a panel and memorizing a national map divided into each area inside an audio/video head unit(20) mounting a GSP receiver, a navigation main calculation part(22) playing the map memory stick to be inserted, and a gyroscope(23) integrately formed in the inside of the audio/video head unit.
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