Implementing geo-fencing on mobile devices
Patent 6983202 Issued on January 3, 2006. Estimated Expiration Date: 
April 12, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 12, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesVehicle map position determining apparatus Monitoring of route and schedule adherence Aircraft wake vortex hazard warning apparatus Model-based feature tracking system Patent #: 5801970 InventorAssigneeApplicationNo. 10822490 filed on 04/12/2004US Classes:701/207Employing position determining equipmentExaminersPrimary: Nguyen, Tan T.Attorney, Agent or FirmForeign Patent References
International ClassG01C 21/30AbstractA location of a vehicle is monitored using a predefined geo-fencing boundary within a coordinate system. An angle between a selected straight edge of the boundary and an axis of the coordinate system is determined, and the boundary is rotated by the angle such that the selected straight edge of the rotated boundary is parallel to the axis of the coordinate system. Subsequently, a set of coordinates associated with a particular location of a monitored device are identified and rotated by the previously determined angle. The rotated set of coordinates is then compared to the rotated boundary to determine a location of the monitored device with respect to the selected boundary. This information can be used to determine whether the vehicle remains within the predefined geo-fencing boundary.Other References
Field of SearchNAVIGATIONDetermination of travel data based on the start point and destination point Route pre-planning Great circle route Employing position determining equipment For use in a map data base system Route correction, modification, or verification Using Global Positioning System (GPS) Means to improve accuracy of position or location Determining range without range measurement RELATIVE LOCATION Collision avoidance Course to intercept Having image processing Changing the image coordinates Registering or aligning multiple images to one another To position or translate an image To rotate an image Rotation of image is limited to 90 degrees, 180 degrees, or 270 degrees | |
