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Class Information
Number: 342/32
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Aircraft collision avoidance system (cas) > With transponder > Included in secondary surveilance radar (ssr) or air traffic control radio beacon system (atcrbs)
Description: Subject matter wherein the transponder means are part of a secondary surveillance radar (SSR) or an air traffic control radio beacon system (ATCRBS).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5334982 |
Airport surface vehicle identification |
Aug. 2, 1994 |
| 5321406 |
Method of track merging in an aircraft tracking system |
Jun. 14, 1994 |
| 5317316 |
Method of altitude track initialization in an aircraft tracking system |
May. 31, 1994 |
| 5280285 |
Method of improved initial transmission of acquisition and tracking interrogations in an aircraft tracking system |
Jan. 18, 1994 |
| 5252978 |
Collision warning system |
Oct. 12, 1993 |
| 5218365 |
Beacon interrogator beamwidth control using sidelobe signal integration in transponders |
Jun. 8, 1993 |
| 5198823 |
Passive secondary surveillance radar using signals of remote SSR and multiple antennas switched in synchronism with rotation of SSR beam |
Mar. 30, 1993 |
| 5196855 |
Secondary surveillance radar system |
Mar. 23, 1993 |
| 5196856 |
Passive SSR system utilizing P3 and P2 pulses for synchronizing measurements of TOA data |
Mar. 23, 1993 |
| 5182563 |
Enhanced performance mode S interrogator |
Jan. 26, 1993 |
| 5122804 |
Method and apparatus for ground radar information display system |
Jun. 16, 1992 |
| 5107268 |
Method of multipath track reduction in an aircraft tracking system |
Apr. 21, 1992 |
| 5089822 |
Interrogation signal processor for air traffic control communications |
Feb. 18, 1992 |
| 5077673 |
Aircraft traffic alert and collision avoidance device |
Dec. 31, 1991 |
| 5075694 |
Airborne surveillance method and system |
Dec. 24, 1991 |
| 5032841 |
Method and apparatus for ground radar information display system |
Jul. 16, 1991 |
| 4910526 |
Airborne surveillance method and system |
Mar. 20, 1990 |
| 4899156 |
Virtual ATCRBS using signals of remote SSR |
Feb. 6, 1990 |
| 4789865 |
Collision avoidance system |
Dec. 6, 1988 |
| 4782450 |
Method and apparatus for passive airborne collision avoidance and navigation |
Nov. 1, 1988 |
| 4768036 |
Collision avoidance system |
Aug. 30, 1988 |
| RE32368 |
Collision avoidance system for aircraft |
Mar. 10, 1987 |
| 4642648 |
Simple passive/active proximity warning system |
Feb. 10, 1987 |
| 4486755 |
Collision avoidance system |
Dec. 4, 1984 |
| 4454510 |
Discrete address beacon, navigation and landing system (DABNLS) |
Jun. 12, 1984 |
| 4293857 |
Collision avoidance warning system |
Oct. 6, 1981 |
| 4197538 |
Pilot's traffic monitoring system |
Apr. 8, 1980 |
| 4196434 |
Surveillance system for collision avoidance of aircrafts using radar beacon |
Apr. 1, 1980 |
| 4167006 |
Collision avoidance system of aircraft |
Sep. 4, 1979 |
| 4161729 |
Beacon add-on subsystem for collision avoidance system |
Jul. 17, 1979 |
| 4128839 |
Means for accumulating aircraft position data for a beacon based collision avoidance system and other purposes |
Dec. 5, 1978 |
| 4107674 |
Collision avoidance system for aircrafts |
Aug. 15, 1978 |
| RE29260 |
Proximity indication with range and bearing measurements |
Jun. 7, 1977 |
| 4027307 |
Collision avoidance/proximity warning system using secondary radar |
May. 31, 1977 |
| 4021802 |
Collision avoidance system |
May. 3, 1977 |
| 3959793 |
Proximity indication with means for computing the distance from an own station to an interrogating secondary surveillance radar |
May. 25, 1976 |
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