| Patents for G01S 1 - Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith (15,825) |
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| 11/10/1981 | US4300219 Bowed elastomeric window |
| 11/10/1981 | US4300139 Loran-C navigation apparatus |
| 11/03/1981 | US4298874 Method and apparatus for tracking objects |
| 11/03/1981 | CA1111957A1 Method of and apparatus for unambiguous radio navigation |
| 11/03/1981 | CA1111955A1 Search radar |
| 10/21/1981 | EP0038151A1 Remote object position and orientation locator |
| 10/14/1981 | EP0037725A1 Apparatus for determining the position of a source of electromagnetic radiation relative to a remote object |
| 09/16/1981 | EP0035920A1 Frequency synthesizer and radio navigation system comprising such a synthesizer |
| 09/09/1981 | EP0035441A1 Power feed for Doppler VOR radio navigation system and its use |
| 09/03/1981 | WO1981002442A1 Riser angle positioning system and process |
| 09/02/1981 | EP0034974A1 Monitor for Doppler VOR radionavigation system, and Doppler VOR system comprising it |
| 07/28/1981 | CA1106045A1 Radio navigation with separate correlated scans to avoid reflection interference |
| 07/28/1981 | CA1106044A1 Scanning beam radio navigation method and apparatus |
| 07/09/1981 | WO1981001930A1 Interfering-wave elimination device |
| 07/07/1981 | US4277170 Laser beacon and optical detector system for aircraft collision hazard determination |
| 06/30/1981 | US4276552 Automatic synchronization for receivers of a navigational system |
| 06/30/1981 | CA1104250A1 Method for controlling an antenna of an earth station for telecommunication via satellites |
| 06/02/1981 | CA1102432A1 Controlled beam projector |
| 06/02/1981 | CA1102428A1 Object position and surface determining methods and apparatus |
| 05/19/1981 | US4268832 Multipath discriminating antenna system |
| 05/19/1981 | US4268830 Self calibration of a LORAN-C navigation receiver |
| 05/19/1981 | CA1101541A2 Electronically scanned antenna |
| 04/30/1981 | WO1981001195A1 Method and apparatus for determining position |
| 03/10/1981 | CA1097420A1 Monitor for two frequency localizer guidance system |
| 02/24/1981 | US4253166 Target location systems |
| 02/03/1981 | US4249158 Aircraft take-off and landing system and method for using same |
| 02/03/1981 | CA1095165A1 Electronically scanned antenna |
| 02/03/1981 | CA1095153A1 Helical vertical path control for aircraft area navigation system |
| 01/27/1981 | US4247857 Method for controlling an antenna of an earth station for telecommunication via satellites |
| 01/27/1981 | CA1094669A1 Aircraft take-off and landing system and method for using same |
| 12/30/1980 | CA1092691A1 Vor phase monitoring system |
| 12/16/1980 | US4240079 System for locating mobile objects in distress |
| 12/09/1980 | CA1091311A1 Power-dividing and modulating arrangement |
| 12/02/1980 | US4237555 Automatic modulation system |
| 11/11/1980 | US4232839 Method and system for controlling the decelerated approach of an aerodyne |
| 11/04/1980 | US4232316 Aircraft landing-guiding apparatus |
| 10/07/1980 | US4227261 Transmission of information by sweeping fan-shaped beams |
| 09/30/1980 | US4225966 Power area collocation of transmitters |
| 09/23/1980 | US4224623 Loran-C cycle detector |
| 09/16/1980 | US4223400 Low-frequency directional hydrophone |
| 09/02/1980 | US4220040 Method and system for transmission and receipt of measuring ultrasonic wave |
| 08/26/1980 | US4219888 Surface acoustic signal defader |
| 08/26/1980 | CA1084613A1 Steered lateral course transition control for aircraft area navigation systems |
| 08/26/1980 | CA1084612A1 Signal conditioning circuit |
| 08/07/1980 | WO1980001611A1 Loran c-navigation receiver |
| 08/06/1980 | EP0013706A1 System for automatically monitoring the charging state of the mains independent power supply and the humidity in the responder of a vehicle location system |
| 07/29/1980 | US4215428 Time ratio controlled inverter |
| 07/29/1980 | US4215324 Spatial encoding of a laser beam by means of a Stark cell modulator |
| 07/29/1980 | CA1082791A1 Harbor radio navigation system |
| 07/23/1980 | EP0013524A2 Method for aiding piloting and landing of an aircraft |
| 07/22/1980 | US4214245 Loran receiving apparatus |
| 06/24/1980 | US4209768 Aircraft take-off and landing system and method for using same |
| 06/17/1980 | US4208736 Hydrophone having a plurality of directional outputs |
| 06/11/1980 | EP0011664A1 Method of and apparatus for radio navigation |
| 06/10/1980 | US4207570 Device for simulating bearing signals of the tacan type |
| 06/10/1980 | CA1079385A2 Below glide slope advisory warning system for aircraft |
| 06/03/1980 | CA1078955A1 Radio navigation antenna system |
| 05/27/1980 | CA1078498A1 Microwave radiation method and apparatus with a combined diffraction edge and radiation screen |
| 05/14/1980 | EP0010568A1 Method and apparatus for camouflaging a metallic object prevent radiometer locating by adapting its own radiation to the ambiant radiation |
| 05/13/1980 | US4203089 Electro-hydroacoustic transducer |
| 04/29/1980 | CA1076687A1 Below glide slope advisory warning system for aircraft |
| 04/16/1980 | EP0009899A1 A projector for projecting electromagnetic control signals |
| 04/15/1980 | CA1075806A1 Synthesis of continuously scanned beam signal from fixed beam components |
| 04/08/1980 | US4197543 Display processor for aircraft landing system |
| 04/08/1980 | US4197542 Radio navigation system |
| 04/08/1980 | US4197522 Low frequency pressure responsive |
| 04/08/1980 | US4197270 Process for bonding with polyethylene encapsulant |
| 04/03/1980 | WO1980000630A1 Installation for transmitting alarm signals |
| 04/01/1980 | US4196346 Laser guided blind landing system for aircraft |
| 04/01/1980 | US4195799 System for guiding flying vehicles with light beam |
| 03/25/1980 | US4195361 Variable frequency acoustic filter |
| 03/25/1980 | US4195300 Device for simulating the locating signals of an ILS beacon |
| 03/25/1980 | US4195299 Loran-C system monitor circuit |
| 03/25/1980 | US4195280 Tuned electrolytic detector |
| 03/11/1980 | US4193130 Fiber optic hydrophone for use as an underwater electroacoustic standard |
| 03/11/1980 | US4193075 Low angle elevation guidance system |
| 03/04/1980 | CA1073085A1 Missile guiding |
| 02/26/1980 | CA1072658A1 Omega-vor/dme positional data computer for aircraft |
| 02/12/1980 | US4188609 Low frequency hydrophone |
| 02/06/1980 | EP0007790A1 Driverless vehicle carrying non-directional detectors auto-guided by light signals |
| 02/06/1980 | EP0007789A2 Driverless vehicle carrying directional detectors auto-guided by light signals |
| 02/06/1980 | EP0007613A2 Apparatus for spatially encoding a laser beam, comprising a Stark cell modulator |
| 02/05/1980 | US4187556 Electro-acoustic transducer with line focus |
| 02/05/1980 | US4186899 Controlled beam projector |
| 01/29/1980 | US4186399 Goniometer circuit for VOR system |
| 01/29/1980 | US4186396 Radar beacon apparatus |
| 01/29/1980 | CA1070803A1 Glide slope warning system with a variable warning rate |
| 01/15/1980 | US4184158 Time shared operation of navigational unit |
| 01/15/1980 | US4184157 Identification tone reconstitution in a time shared navigational receiver |
| 01/15/1980 | US4184156 Doppler radar device for measuring speed of moving objects |
| 01/09/1980 | EP0006804A1 Precision decoder for the first pulse of a pair of pulses |
| 12/11/1979 | US4178631 Digital phase detector and method |
| 12/11/1979 | US4178581 Integrated antenna aperture |
| 12/11/1979 | US4178505 Device for determining the direction towards a remote object |
| 12/04/1979 | US4176814 Terminally corrected projectile |
| 11/13/1979 | CA1066404A1 Monitor for localizer antenna arrays |
| 10/31/1979 | EP0004969A1 Device for automatically monitoring the state of charge of line-independent current sources |
| 10/16/1979 | CA1064593A1 Operating condition data communication system |
| 09/11/1979 | US4167739 Instrument landing system glidepath antenna array and drive therefor |
| 09/11/1979 | CA1062375A1 Operating condition data system |