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Class Information
Number: 342/40
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Air traffic control > Secondary surveilance radar (ssr) or air traffic control radar beacon system (atcrbs) > With defruiting or degarbling
Description: Subject matter including means to eliminate random nonsynchronous unintentional return signals in a beacon system or to decode multiple overlapping signal transmission interference.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7277043 |
Tactical aircraft check algorithm, system and method |
Oct. 2, 2007 |
| 7095360 |
Secondary surveillance radar system, ground equipment for use therein, and response signal checking method applied thereto |
Aug. 22, 2006 |
| 6985102 |
Method and system for deinterleaving |
Jan. 10, 2006 |
| 6819282 |
Super-resolution processor/receiver to discriminate superimposed secondary surveillance radar (SSR) replies and squitter |
Nov. 16, 2004 |
| 6727842 |
Digital IF processor |
Apr. 27, 2004 |
| 6573858 |
Tandem-cycle target/track assignment method in combined radar/ADS surveillance environment |
Jun. 3, 2003 |
| 6483453 |
Method for reducing transmit power for traffic alert and collision avoidance systems and airborne collision avoidance systems |
Nov. 19, 2002 |
| 6337652 |
SSR station and aircraft secondary surveillance network |
Jan. 8, 2002 |
| 6005510 |
Method for the processing of multiple paths |
Dec. 21, 1999 |
| 5920278 |
Method and apparatus for identifying, locating, tracking, or communicating with remote objects |
Jul. 6, 1999 |
| 5596326 |
Secondary surveillance radar interrogation system using dual frequencies |
Jan. 21, 1997 |
| 5583505 |
Radar pulse detection and classification system |
Dec. 10, 1996 |
| 5574459 |
Device for the detection and characterizing of radar pulses |
Nov. 12, 1996 |
| 5486829 |
Method of communicating information between an S-mode secondary radar and a target |
Jan. 23, 1996 |
| 5477225 |
Method and apparatus for associating target replies with target signatures |
Dec. 19, 1995 |
| 5463398 |
Method and apparatus for multiple reply rejection when decoding transponder replay signals |
Oct. 31, 1995 |
| 5455586 |
Pulse recognition method and device, and use thereof for the filtering of the S mode responses of a secondary radar |
Oct. 3, 1995 |
| 5432517 |
Method and device for the filtering of responses in a secondary radar extractor |
Jul. 11, 1995 |
| 5406288 |
Method and device to improve the probability of validity of the codes of secondary radar responses |
Apr. 11, 1995 |
| 5394152 |
Radar processing apparatus and method |
Feb. 28, 1995 |
| 5387915 |
Method and apparatus for detecting and decoding transponder reply signals |
Feb. 7, 1995 |
| 5367303 |
Parallel observer spatial evaluator |
Nov. 22, 1994 |
| 5341139 |
Method and device to detect the garbling of pulses received by a secondary radar |
Aug. 23, 1994 |
| 5317316 |
Method of altitude track initialization in an aircraft tracking system |
May. 31, 1994 |
| 5317317 |
Method and device to detect the garbling of pulses received by a secondary radar by phase analysis |
May. 31, 1994 |
| 5264853 |
Method of reducing false tracks due to suppression pulse replies in an aircraft tracking system |
Nov. 23, 1993 |
| 5220329 |
Monopulse reply extractor for SSR navigation systems |
Jun. 15, 1993 |
| 5218365 |
Beacon interrogator beamwidth control using sidelobe signal integration in transponders |
Jun. 8, 1993 |
| 5142287 |
Technique for demodulating and decoding MLS DPSK transmissions using a digital signal processor |
Aug. 25, 1992 |
| 5126744 |
Beacon and mode-4 defruiter |
Jun. 30, 1992 |
| 5089822 |
Interrogation signal processor for air traffic control communications |
Feb. 18, 1992 |
| 5081457 |
Apparatus for reducing synchronous fruit in TCAS surveillance systems |
Jan. 14, 1992 |
| 5063386 |
Device for the detection of the signals of transponders interrogated by a secondary radar in the presence of multiple-path phenomena |
Nov. 5, 1991 |
| 4945550 |
ATCRBS/SIF/TCAS reply decoder |
Jul. 31, 1990 |
| 4899157 |
Leading edge detector/reply quantizer |
Feb. 6, 1990 |
| 4896158 |
Beacon fruit filter |
Jan. 23, 1990 |
| 4796030 |
Dual threshold amplitude detector |
Jan. 3, 1989 |
| 4761651 |
Pulse discriminating system for reply signals in a transponder |
Aug. 2, 1988 |
| 4642638 |
Apparatus for generating enhanced/regenerative bracket decode signals |
Feb. 10, 1987 |
| 4314247 |
Degarbler for an interrogator-transponder system |
Feb. 2, 1982 |
| 4180815 |
Radio identification systems |
Dec. 25, 1979 |
| 4174519 |
Method for the improved utilization of response signals in a _secondary radar system and a secondary radar system for implementing the method |
Nov. 13, 1979 |
| 4167006 |
Collision avoidance system of aircraft |
Sep. 4, 1979 |
| 4167007 |
Method and apparatus for identifying radar targets |
Sep. 4, 1979 |
| 4137531 |
Radar selective interrogation system |
Jan. 30, 1979 |
| 4109248 |
Radar systems |
Aug. 22, 1978 |
| 4070673 |
Radar video digital processor |
Jan. 24, 1978 |
| 4052721 |
Multi-target tracker for tracking near co-range targets |
Oct. 4, 1977 |
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