Patent US4918442A successfully refreshed from Google Patents.
US4918442A
Expired / Lapsed
US
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Airplane collision avoidance system
Assignee: Individual
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Filing: 1988-10-03
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Granted: 1990-04-17
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Expires: 2008-10-03
Abstract
Abstract A collision avoidance system for airplanes particularly suited for clear weather visual circumstances which includes television cameras suitably positioned on an airplane to view all areas where there is a potential for collision with another airplane. The system includes an on-board television display in ready view of the pilot which is connected to a machine vision system predeterminedly programmed to respond to other flying objects which could present a collision hazard. The television cameras on the airplane are, in turn, connected to the machine vision system so as to transmit images to which it is responsive thereby causing an alert condition for pilot scrutiny.
Inventors
- 👤 Donald W. Bogart, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:48
CPC Classifications
G; G08; G08G; G08G5/00; G08G5/50; G08G5/53; G01; G01S; G01S11/00; G01S11/12; G08G5/55; G08G5/70; G08G5/72; G08G5/723
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
97 words
A collision avoidance system for airplanes including: television cameras, which create images of objects through correspondingly arranged pixels, positioned on an aircraft so as to view areas of potential collision; a machine vision system responsively connected to said television cameras; an on-board annunciator display responsively connected to said machine vision system positioned to be viewed by the pilot of said aircraft; wherein said machine vision system includes a computer programmed to identify correspondingly predetermined contrasting individual pixel arrangements as collision hazards which cause alarm signals; and electronic means to send said alarm signals to said annunciator display.
Claim 2
Dependent Claim
97 words
A collision avoidance system for airplanes including: television cameras, which create images of objects through correspondingly arranged pixels, positioned on an aircraft so as to view areas of potential collision; a machine vision system responsively connected to said television cameras; an on-board annunciator display responsively connected to said machine vision system positioned to be viewed by the pilot of said aircraft; wherein said machine vision system includes a computer programmed to identify correspondingly predetermined contrasting individual pixel arrangements as collision hazards which cause alarm signals; and electronic means to send said alarm signals to said annunciator display.
Claim 3
Dependent Claim
86 words
A collision avoidance system for airplanes as defined in claim 1 wherein said television cameras produce an array of pixels which are a uniform shade until a predetermined object appears in the field of view and said viewed object causes a contrasting shade of pixels to be generated corresponding to its location in said camera field of view; and said computer responsive thereto rapidly processes said contrasting shade of pixels to identify arrangements preprogrammed to cause said alarm signals to be sent to said annunciator display.
References Cited (Backward Citations)
US3053932A
Cited
US4001499A
Cited
US4071843A
Cited
US4277170A
Cited
US4445185A
Cited
US4688046A
Cited
US4799267A
Cited
US4602336A
Cited
US4581762A
Cited
US4816828A
Cited
US4713669A
Cited
US4805015A
Cited
US4779095A
Cited
US4731663A
Cited
US4792904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-16 | 1993-10-16 | 1994-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-16 | 1997-10-16 | 1998-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-16 | 2001-10-16 | 2002-04-17 | $7700.00 | Window Closed / Lapsed |