Patent ReferencesNavigation instrument Navigation instrument Navigation apparatus based on present position calculating system Adaptive in-vehicle route guidance system Vehicle position determining apparatus Navigation apparatus Vehicle location detecting system On-board navigation system capable of switching from music storage medium to map storage medium Method of and arrangement for representing travel guiding information Vehicle route planning system Patent #: 5184303 InventorsApplicationNo. 841798 filed on 02/26/1992US Classes:701/211, Having audio or visual route guidance340/988, VEHICLE POSITION INDICATION340/995.2, Intersection turn guidance342/396, Omega701/200, NAVIGATION701/217Using dead-reckoning apparatusExaminersPrimary: Teska, Kevin J.Assistant: Louis-Jacques, Jacques H. Attorney, Agent or FirmInternational ClassG06G 007/78Foreign Application Priority Data1991-03-18 JPAbstractThe present invention relates to an on-board navigation system which continuously informs a driver of the degree of approach of a vehicle to a destination by outputting a sound suited to the driver's actual running feeling. | |