| 摘要 |
<p>PURPOSE:To execute a uniform map display with high accuracy, and also, to contrive to realize the non-adjustment of a device, by adopting a storage means as a recording medium of map information, and digitizing the circuit for the most part. CONSTITUTION:An azimuth control part 1, an address selector 2 and a pointer address counter 4 constitutes an access control means as a whole, and a map generating part 5 and a video amplifying part 6 constitutes a map video generating means as a whole. In a memory 3, a map data which has digitized map information is stored in advance. From this memory 3, each map data is read out successively by the access control means, and a map video is outputted through the map video generating means.</p> |
