Patent ID: 9568330
Date: 2017-02-14
CPC Classifications: G01C

Claim:
1. A method of generating a suggested navigation route with a navigation device, the method comprising: storing in a memory of the navigation device a map database containing names and locations of roads in a road network; storing in the memory of the navigation device off-road trail data containing locations of at least one off-road trail provided by a user of the navigation device, the user storing the off-road trail data in the memory by loading at least one file into the memory; merging off-road segments of the at least one off-road trail provided by the user with the roads of the road network to create a combined map database containing off-road segments and road segments; receiving, with the navigation device, a request from the user for generating navigation directions to a destination location input by the user; generating the suggested navigation route using data stored in the combined map database, the suggested navigation route containing a combination of off-road segments and road segments, and the suggested navigation route being generated for guiding the user as the user operates a motor vehicle; and providing navigation assistance to the user for guiding the user along the suggested navigation route while the user operates the motor vehicle.