US4063073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computer system to prevent collision between moving objects such as aircraft moving from one sector to another
Assignee: Individual
•
Filing: 1974-11-29
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Granted: 1977-12-13
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Expires: 1994-11-29
Abstract
Abstract A 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.
Inventors
- 👤 Larry G. Strayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:14
CPC Classifications
G; G08; G08G; G08G5/00; G08G5/20; G08G5/26; G08G5/50; G08G5/53; G08G5/55; G08G5/70; G08G5/72; G08G5/727
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
240 words
A method of preventing collisions between aircraft moving in an aircraft control sector comprising: continuously generating signals in each aircraft moving within the aircraft control sector which represent the instantaneous velocity and altitude of each aircraft, establishing a communication link between each aircraft moving within the control sector and a ground station for providing the ground station with the signals representative of the instantaneous velocity and altitude of each aircraft moving within the aircraft control sector, defining an imaginary airspace around the center of each aircraft, the airspaces having a given radius (R) and height (H), and moving with and at the same velocity as the aircraft, defining an imaginary airspace having zero velocity around selected objects of terrain located within the aircraft control sector, updating the parameters of each defined airspace as the corresponding aircraft travels by analysis of the instantaneous velocity and altitude of each aircraft moving within the control sector which has been relayed to the ground station by the communication link between the aircraft and the ground station, comparing the parameter of each aircraft defined airspace one at a time with the parameter of all other defined airspaces within a discreet altitude band to determine whether there is an existing or future course conflict under predetermined criteria, producing an indication in the event such conflict is determined, and communicating with any aircraft moving within the control sector on which an indication of conflict has been determined.
Claim 2
Independent Claim
240 words
A method of preventing collisions between aircraft moving in an aircraft control sector comprising: continuously generating signals in each aircraft moving within the aircraft control sector which represent the instantaneous velocity and altitude of each aircraft, establishing a communication link between each aircraft moving within the control sector and a ground station for providing the ground station with the signals representative of the instantaneous velocity and altitude of each aircraft moving within the aircraft control sector, defining an imaginary airspace around the center of each aircraft, the airspaces having a given radius (R) and height (H), and moving with and at the same velocity as the aircraft, defining an imaginary airspace having zero velocity around selected objects of terrain located within the aircraft control sector, updating the parameters of each defined airspace as the corresponding aircraft travels by analysis of the instantaneous velocity and altitude of each aircraft moving within the control sector which has been relayed to the ground station by the communication link between the aircraft and the ground station, comparing the parameter of each aircraft defined airspace one at a time with the parameter of all other defined airspaces within a discreet altitude band to determine whether there is an existing or future course conflict under predetermined criteria, producing an indication in the event such conflict is determined, and communicating with any aircraft moving within the control sector on which an indication of conflict has been determined.
References Cited (Backward Citations)
US3582626A
Cited
US3808598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |