Computer system to prevent collision between moving objects such as aircraft moving from one sector to another
Patent 4063073 Issued on December 13, 1977. Estimated Expiration Date: 
December 13, 1994. 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.
December 13, 1994. 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 References 3582626 3808598 InventorApplicationNo. 05/528435 filed on 11/29/1974US Classes:701/120, Traffic analysis or control of aircraft701/301Collision avoidanceExaminersPrimary: Dildine, R. StephenAbstractA method and system of preventing collisions between aircraft comprising defining an imaginary airspace around the center of each aircraft, the airspace having a given radius (R) and height (H), and moving with and at the same velocity as the aircraft. An imaginary airspace having zero velocity is defined around objects of terrain and the parameters of each defined airspace are updated as the corresponding aircraft travels. The parameters of each aircraft defined airspace is compared one at a time with the parameters of all other defined airspaces within a discrete altitute band under predetermined criteria to determine whether there is an existing or future travel course conflict, and an indication is produced in the event such a conflict is determined. | |
