Patents
Sitemap › G01 - Measuring; Testing › G01S - Radio direction-finding; Radio navigation; Determining distance or velocity by use of radio waves; Locating or presence-detecting by use of the reflection or reradiation of radio waves; Analogous arrangements using other waves › 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
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)
10/1999
10/26/1999US5974356 System and method for determining vehicle travel routes and mileage
10/26/1999US5973643 Method and apparatus for mobile emitter location
10/26/1999US5973640 Method and device for managing status/alarm message of GPS receiver and broadcasting system time
10/21/1999WO1999053707A1 Method of measuring time difference, and radio system
10/21/1999WO1999053338A2 Method and apparatus for determining time in a satellite positioning system
10/21/1999CA2557823A1 Method and apparatus for determining time in a satellite positioning system
10/20/1999EP0950194A2 An improved gps receiver utilizing a communication link
10/20/1999EP0950193A1 Gps receiver fault detection method and system
10/19/1999US5969678 System for hybrid wired and wireless geographic-based communications service
10/19/1999US5969674 Method and system for determining a position of a target vehicle utilizing two-way ranging
10/19/1999US5969672 GPS signal fault isolation monitor
10/19/1999US5969671 Method for the real-time determination of a time delay between stations in a radiolocation/radionavigation system
10/19/1999US5969670 Inexpensive monitoring technique for achieving high level integrity monitoring for differential GPS
10/19/1999US5967652 Apparatus for projecting electromagnetic radiation with a tailored intensity distribution
10/13/1999EP0948748A1 Gps multipath detection method and system
10/12/1999US5966403 Apparatus for use in decoding a composite signal
10/07/1999WO1999050985A1 Method and arrangement for synchronisation at a mobile radio communications system
10/07/1999WO1999050685A2 Electronic navigation apparatus
10/07/1999WO1999050618A1 Robust accurate gps time reference for space application
10/07/1999WO1999039517A3 Time difference of arrival measurement system
10/06/1999EP0946920A2 Method and apparatus for real-time ionospheric mapping and dynamic forecasting
10/06/1999EP0835455B1 Differential satellite positioning system ground station with integrity monitoring
10/05/1999US5963601 Variable suppression of multipath signal effects
10/05/1999US5963582 Mitigation of multipath effects in global positioning system receivers
10/05/1999US5963167 Analyzing system for global positioning system and general satellite tracking
09/1999
09/30/1999DE19902956A1 Enduring marking of important sites surveyed using engineering means
09/29/1999EP0944872A1 Map-based navigation system with overlays
09/29/1999EP0944842A1 High precision hardware carrier frequency and phase aiding in a gps receiver
09/28/1999US5960355 Method and an arrangement relating to telecommunication systems
09/28/1999US5960341 Positioning system having an RF-measurements databank
09/28/1999US5960047 System and method for transmitting information signals
09/28/1999US5959575 Interior GPS navigation
09/28/1999US5957717 Range pole with integrated power system
09/28/1999CA2072121C Precision landing system utilizing ground-based central processing system to calculate aircraft position by eleminating transponder delay time from elapsed time measurements
09/23/1999WO1999048233A1 Pseudolite-augmented gps for locating wireless telephones
09/23/1999WO1999047943A1 System and method for determining the position of a wireless cdma transceiver
09/23/1999DE19810719A1 Method of improving the noise resistance of receivers for satellite navigation, esp. for narrowband noise sources
09/21/1999US5956250 Apparatus and method for autonomous vehicle navigation using absolute data
09/21/1999US5955987 Hybrid radio frequency system with distributed anti-jam capabilities for navigation use
09/21/1999US5955986 Low-power satellite-based geopositioning system
09/21/1999US5955971 Window-passage detection system of an airplane
09/15/1999EP0941487A1 Method and apparatus for determining time for gps receivers
09/14/1999US5953367 Spread spectrum receiver using a pseudo-random noise code for ranging applications in a way that reduces errors when a multipath signal is present
09/14/1999US5952968 Method and apparatus for reducing jamming by beam forming using navigational data
09/14/1999US5952960 Method and apparatus for receiving a pseudorandom code
09/09/1999DE19809212A1 Determining geographic position of receiver in geographic area
09/08/1999EP0940016A1 A signal correlation technique for a spread spectrum receiver to reduce multipath errors
09/08/1999EP0939906A1 Gps receiver with efficient signal acquisition
09/08/1999EP0939904A1 Vehicular tracking and location
09/07/1999US5949815 For use in decoding a composite signal
09/07/1999US5949812 Method and system for conserving battery reserves in a navigation receiver by slowing and/or stopping the system clock during low demand
09/07/1999US5949375 Method of and apparatus for calculating position of movable body in navigation system, method of and apparatus for correcting the position, and program storage device readable by the apparatus
09/07/1999US5949374 Two-channel fast-sequencing high-dynamics GPS navigation receiver
09/07/1999US5949372 Signal injection for calibration of pseudo-range errors in satellite positioning system receivers
09/02/1999WO1999044073A1 Stand alone global positioning system (gps) and method with high sensitivity
09/01/1999EP0938683A1 Satellite signal receiver with detector of incoherence between code phase and carrier frequency measurements
08/1999
08/31/1999US5945944 To determine position of a mobile global positioning system receiver
08/31/1999US5944770 Method and receiver using a low earth orbiting satellite signal to augment the global positioning system
08/31/1999CA2074167C Solid state current controlled interruption system
08/26/1999WO1999043150A1 Camera tracking system for a virtual television or video studio
08/26/1999WO1999033302A3 Locating method and arrangement
08/26/1999DE19907642A1 Portable GPS navigation computer for land vehicles or sailing craft
08/26/1999DE19807276A1 Control process for receivers and/or direction finders
08/26/1999CA2322020A1 Camera tracking system for a virtual television or video studio
08/25/1999EP0938190A2 Integrated global positioning system receiver
08/24/1999US5943629 Method and apparatus for real-time ionospheric mapping and dynamic forecasting
08/24/1999US5943363 Digital spread spectrum GPS navigation receiver
08/19/1999WO1999034230A3 Improvements relating to position determinations
08/18/1999EP0936521A2 Integrated vehicle positioning and navigation system, apparatus and method
08/18/1999EP0936520A2 Integrated vehicle positioning and navigation system, apparatus and method
08/18/1999EP0936519A1 Integrated vehicle positioning and navigation system, apparatus and method
08/18/1999EP0936518A2 Integrated vehicle positioning and navigation system, apparatus and method
08/18/1999EP0936517A2 Integrated vehicle positioning and navigation system, apparatus and method
08/18/1999EP0936516A2 Integrated vehicle positioning and navigation system, apparatus and method
08/18/1999EP0935739A1 Position detector with satellite signal receiver
08/17/1999US5940458 Method and compensating for time error of time/frequency generator using global positioning system
08/17/1999US5940027 High accuracy low power GPS time source
08/12/1999DE19806646C1 Camera tracking system for virtual television or video studio
08/11/1999EP0934535A1 Gps/irs global position determination method and apparatus with integrity loss provisions
08/11/1999EP0934507A2 Instrument landing system glide path transmitter device
08/11/1999EP0934506A2 Methods for gyro bias estimation using gps
08/10/1999US5936573 Real-time kinematic integrity estimator and monitor
08/10/1999US5936571 Integrated GPS/interference location system
08/05/1999WO1999039517A2 Time difference of arrival measurement system
08/05/1999WO1999039258A1 Portable data processing device
08/05/1999WO1999039219A1 Radio location system including transceiver tags
08/04/1999CN1225210A Method for efficient sampling in a correlator
08/04/1999CN1225208A Method for doppler-replica harmonic avoidance in a GPS receiver
08/04/1999CN1225184A Low power parallel correlator for measuring correlation between digital signal segments
08/04/1999CN1225175A GPS receiver with efficient signal acquisition
08/04/1999CN1225174A Power efficient receiver
08/03/1999US5931890 Positioning system utilizing GPS satellites
08/03/1999US5931889 Clock-aided satellite navigation receiver system for monitoring the integrity of satellite signals
07/1999
07/28/1999EP0932049A2 Positioning apparatus used in a cellular communication system and capable of carrying out a positioning with a high accuracy in urban area
07/27/1999US5929805 Differential phase measurement scheme for a multiplexing GPS attitude receiver
07/27/1999US5929777 Radio activated personal infrared distress beacon
07/22/1999WO1999036795A1 Reducing cross-interference in a combined gps receiver and communication system
07/22/1999WO1999026370A3 Fast acquisitions of direct sequence spread spectrum signals
07/22/1999DE19800411A1 Method for location, determination and control of ships using inner waterways
07/21/1999EP0929821A1 Ambiguity resolution for ambiguous position solutions using satellite beams
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