Patent ID: 8055443
Filing Date: 2011-11-08
Classification: G01C,G08G

Abstract:
1. A method for filtering traffic information broadcast from a one-to-many network to a user of a vehicle navigation system, comprising the steps of: determining whether a broadcast of the traffic information is received by the vehicle navigation system from at least a first terrestrial repeater and a second terrestrial repeater; determining a current position of the vehicle navigation system based on at least the received broadcast from the first terrestrial repeater and the second terrestrial repeater; determining a traffic filtering radius specified by the vehicle navigation system; filtering the received traffic information using the specified filtering radius around the determined current position of the vehicle navigation system; discarding received traffic information that relates to traffic conditions located outside the specified filtering radius around the determined current position of the vehicle navigation system; receiving the filtered traffic information that relates to traffic conditions located inside the specified filtering radius at the vehicle navigation system; providing a scrollable list of applicable freeways associated with the filtered traffic information to the user on a traffic display; providing an option to allow the user to select one of the applicable freeways that are provided in the scrollable list; and displaying details of traffic conditions to a user on the traffic display for a selected one of the applicable freeways.