Patent ID: 9551589
Date: 2017-01-24
CPC Classifications: G01C,G06K

Claim:
1. A method of providing audible natural navigational guidance output from a wireless device, comprising: determining a current location of said wireless device based on measurement data provided by a navigation application program; measuring the current location and direction of travel of a wireless device with respect to an upcoming maneuver point along a navigated route based on map data characterizing a geographic area; determining a natural guidance point selection area relating to said upcoming maneuver point based on said map data; determining available geographic features from a plurality of geographic features within said natural guidance point selection area based on said map data, wherein each geographic feature includes a plurality of visual characteristics identified in said map data; comparing each geographic feature against each other geographic feature based on said respective plurality of visual characteristics to identify at least one locally unique geographic feature from said available geographic features within said determined natural guidance point selection area; varying a priority of each of said at least one locally unique geographic feature within said determined natural guidance point selection area based on a proximity to said upcoming maneuver point; and outputting audio from said wireless device, said audio relating to one of said at least one locally unique geographic feature having a highest varied priority.