Patents
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)
06/1994
06/21/1994US5323332 Instrument landing system calibrator
06/21/1994US5323165 Two-frequency transmitting apparatus with tone-modulation phasing for an instrument landing system
06/21/1994US5323164 Satellite radio wave capturing method for a global positioning system (GPS) receiver
06/21/1994US5323163 Method of navigating an object using GPS (Global Positioning System)
06/16/1994DE4240284A1 Locating stolen cars and deterring thieves - having radio telephone transmitter=receiver unit concealed in vehicle and activated by call after vehicle is stolen
06/09/1994DE4340955A1 Calculating position of vehicle using GPS satellite navigation system - receiving respective sets of navigation signals from satellites at base station and vehicle receivers, and calculating X,Y,Z error coefficients using second set and known position of second receiver to calculate position of first
06/07/1994US5319376 Arctic submarine buoy and application methods
06/07/1994US5319374 Precise universal time for vehicles
05/1994
05/31/1994US5317514 Integrity monitoring of navigation systems using Baye's rule
05/31/1994US5317323 Passive high accuracy geolocation system and method
05/18/1994EP0597715A1 Automatic aircraft landing system calibration
05/10/1994US5311197 Event-activated reporting of vehicle location
04/1994
04/20/1994EP0592560A1 A position indicating system.
04/20/1994EP0592436A1 Airport control/management system
04/19/1994US5305201 Improved system for monitoring play of a golfer
04/19/1994US5305010 Crystal oscillator synchronized digital very high frequency omni-range (VOR) instrumentation unit
04/14/1994WO1994008405A1 Apparatus and method for providing synchronization of base-stations in a communication system
04/14/1994WO1994008251A1 Device for the acquisition and compression of pulse trains
04/13/1994EP0592307A1 Estimation procedure for the error in the position calculation for a mobile by a GPS receiver, and GPS receiver for the application of the procedure
04/13/1994EP0591835A1 Differential phase measurement through antenna multiplexing
03/1994
03/23/1994EP0587561A1 Gps receiver
03/16/1994EP0587487A1 Impact sensor and distress beacon for aircraft with such a sensor
03/15/1994US5294970 Spatial positioning system
03/08/1994US5293318 Navigation system
03/08/1994US5293170 Global positioning system receiver digital processing technique
03/02/1994EP0585101A2 Object locator system
03/02/1994EP0584635A1 Device for obtaining the aperture configuration of a phased array antenna
03/02/1994CN1083288A Method of and apparatus for radio communicatuion amongst base and mobile terminal employing meter scatter
03/01/1994US5291196 Collision-avoidance method for cooperating carriers and onboard optical assembly designed for its implementation
03/01/1994CA2104938A1 Object locator system
02/1994
02/27/1994CA2104658A1 Ils signal analysis device and method
02/23/1994EP0583523A2 Pager with reverse paging facility
02/23/1994EP0583522A2 Remote position determination system
02/21/1994CA2104555A1 Pager with reverse paging facility
02/21/1994CA2104544A1 Remote position determination system
02/15/1994CA2029815C Apparatus and method for short cycling sequences of a p-code generator
02/15/1994CA1327069C Receiver for bandspread signals, particularly gps receiver
02/09/1994EP0582073A2 Remote position determination
02/09/1994EP0581847A1 System for transmitting data between the ground and moving vehicles, particularly in ground/train communication
02/04/1994CA2097974A1 Remote position determination
01/1994
01/19/1994CN1081011A Passive aircraft monitoring system
01/11/1994US5278568 Method of and apparatus for two-way radio communication amongst fixed base and mobile terminal users employing meteor scatter signals for communications inbound from the mobile terminals and outbound from the base terminals via Loran communication signals
01/11/1994CA1326069C Microwave landing system
01/05/1994EP0577364A2 An apparatus for seismic surveying and a method of synchronizing systems for seismic surveying
12/1993
12/29/1993CN1080059A A pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correctors
12/28/1993US5274675 Method and apparatus for post-correlation scoring circuit
12/23/1993DE4220101A1 Two frequency transmitter combination for instrument landing system - uses differential phase shift of common audio frequency modulations of course and clearance signals
12/20/1993CA2097976A1 Two-frequency transmitting apparatus with tone-modulation phasing for an instrument landing system
12/15/1993EP0574139A1 Passive aircraft monitoring system
12/14/1993US5271034 System and method for receiving and decoding global positioning satellite signals
12/14/1993CA1325261C Automatic, real-time fault monitor verifying network in a microwave landing system
12/07/1993US5268695 Differential phase measurement through antenna multiplexing
12/01/1993EP0572082A2 Vehicle location unit
11/1993
11/25/1993WO1993023763A1 Passive aircraft monitoring system
11/23/1993US5265025 Navigation system using satellite signals
11/23/1993US5264857 Method and apparatus for signal modulation and detection
11/18/1993EP0328617B1 Phase demodulator and its application to an mls-type landing system
11/10/1993EP0568886A1 Circuit and phase shifters for generating signals for TACAN antennas
11/06/1993CA2095510A1 Circuit for generating rf signals for electronically scanned antennas and in particular for tacan systems, and phase shifter suitable for the same
11/04/1993DE4312599A1 Optical transmitter for required position direction finder - includes rotation-symmetrical body in transmitter whose axis is located in laser beam at rest position
11/03/1993EP0568393A2 Radio communication apparatus
11/02/1993CA2095284A1 Method of and apparatus for two-way radio communication amongst fixed base and mobile terminal users employing meteor scatter signals for inbound communications from the mobile terminals and outbound communications from the base terminals via loran communication signals combined with loran navigational transmissions
10/1993
10/28/1993WO1993021540A1 Method and system for determining the position and direction of a moving object and applications thereof
10/19/1993US5254998 Executive monitor for microwave landing system
10/06/1993EP0564209A2 Picture information memory device and picture information reproducing device using pockels readout optical modulator element
10/05/1993US5250955 State entry beacon system
09/1993
09/28/1993US5248983 Transmitting station for a position locating system, particularly for the microwave landing system, and methods for monitoring and controlling such a transmitting station
09/28/1993US5248981 Apparatus and method for positioning of a gps receiver
09/22/1993EP0561540A1 Satellite radio wave capturing method of GPS receiver
09/22/1993EP0561539A2 Method for setting search widthsband of a GPS receiver
09/15/1993EP0560470A1 Personnel identification devices
09/14/1993US5245659 Constant ratio coding for multipath rejection and ECCM enhancement
09/14/1993US5245628 Enhanced l1/l2 code channel for global positioning system receivers
09/07/1993CA1322037C Airborne receiver in microwave landing system with channel selection means by manual input of familiar abbreviations of airports
09/02/1993DE4206327A1 Two-frequency transmitter with audio modulation phasing - radiates clearance signal into broader angle than course signal for suppression of difference-of-depth-of-modulation interference
08/1993
08/31/1993US5241700 Receiver of an electromagnetic signal with a known nominal frequency, liable to be affected by an unknown variation, in particular by the doppler shift
08/31/1993US5241561 Radio receiver
08/24/1993US5239669 Coupler for eliminating a hardwire connection between a handheld global positioning system (GPS) receiver and a stationary remote antenna
08/19/1993DE4204229A1 Phase-normal controller for synchronisable frequency synthesiser - produces corrective tuning voltage for reference oscillator by digital=to=analogue conversion from satellite time signal
08/19/1993DE4204164A1 Position and mission data unit for GPS flight navigation and flight data processing - has display for aeroplanes and helicopters used in general air traffic supported by global positioning satellite system and data unit of modular design
08/17/1993CA1321419C Phase signal filtering apparatus applicable to a global positioning system
08/10/1993US5235513 Aircraft automatic landing system
08/04/1993EP0543954A4 Spatial positioning system
08/03/1993US5233626 Repeater diversity spread spectrum communication system
07/1993
07/28/1993EP0552975A2 A pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlators
07/13/1993CA1320255C Method of and apparatus for message communication on loran-c navigational signal broadcasts and the like with reduced navigation errors and with reduced skywave navigation location errors
07/06/1993US5226061 Transmitters and transmitter circuits
07/06/1993US5225828 Infrared identification beacon
06/1993
06/29/1993US5223843 High performance global positioning system receiver means and method
06/24/1993CA2058352A1 Calibration of plural-channel system
06/23/1993EP0547274A1 Calibration of plural - channel system
06/22/1993US5222245 Gps receiver
06/22/1993US5222099 Spread spectrum signal receiving apparatus
06/15/1993US5220333 Method and apparatus for determining universal coordinated time from Loran-C transmissions
06/08/1993US5218366 Emergency transmitter buoy for use on marine vessels
06/08/1993US5218360 Millimeter-wave aircraft landing and taxing system
06/02/1993EP0543954A1 Spatial positioning system.
06/01/1993US5216352 Solid state current controlled interruption system
05/1993
05/26/1993EP0543028A1 Method of generating a stable frequency signal for a power-supply-apparatus and a synchronising and receiver device for it
05/18/1993CA1318009C Roadside beacon system with polarized beams