An apparatus is provided for allowing simple entry and display of location information in a vehicle travel guide system. Spot information corresponding to contents carried on an atlas is stored in a memory card 24, and by designating a retrieval condition such as an atlas name corresponding to an atlas,...http://www.google.com/patents/US5353034?utm_source=gb-gplus-sharePatent US5353034 - Position information inputting apparatus for a vehicle travel guide system