System and method for improved updating and annunciation of traffic enforcement camera information in a vehicle using a broadcast content delivery service

摘要

An enhanced broadcast data service with reports locations of traffic enforcement camera locations (e.g., red light cameras and speed cameras) to users. Traffic enforcement camera information is aggregated, verified (e.g., particularly as to traffic enforcement camera type) and stored (e.g., at a server). A broadcast signal comprising program channels and at least one data channel having traffic enforcement camera information is transmitted to a plurality of receivers. Receivers store at least a subset of the traffic enforcement camera information available from the server and synchronize to it using periodic transmitted updates. Receivers compare receiver location data with stored camera location data, and display or generate audible alerts when the receiver is within a selected geographic range of a traffic enforcement camera. Alerts can be filtered as to camera type. A alerts can employ different color camera icons superimposed on a screen map depending on camera type or whether the camera is newly added.

主权项

1. A method of providing traffic enforcement camera location data to a receiver comprising:
receiving at a receiver a broadcast signal comprising a plurality of program channels and at least one data channel, the receiver configured to receive the broadcast signal and demultiplex at least one selected program channel and the data channel therefrom, the data channel comprising traffic enforcement camera data that is periodically updated and is from a content provider that verifies the traffic enforcement camera data, the traffic enforcement camera data comprising at least camera location data and identification data indicating the type of camera selected from a plurality of different types of traffic enforcement cameras identified by the content provider; storing in a memory device of the receiver at least a subset of the traffic enforcement camera data corresponding to a plurality of traffic enforcement cameras, including at least one speed camera; demultiplexing the data channel from the received broadcast signal; updating the traffic enforcement camera data stored in the memory device when the demultiplexed data channel comprises at least one of traffic enforcement camera data for a new traffic enforcement camera, data indicating deletion of the stored traffic enforcement camera data for an identified traffic enforcement camera, and data indicating edits to the stored traffic enforcement camera data for an identified traffic enforcement camera; obtaining position data corresponding to the location of the receiver; comparing the position data of the receiver with the camera location data stored in the memory device; and annunciating selected traffic enforcement camera data from the memory device that corresponds to one or more traffic enforcement cameras located within a selected geographic range of the receiver and its corresponding type from among the plurality of different types of traffic enforcement cameras identified by the content provider.