| 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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| 02/25/1998 | EP0825580A1 Transmission system and coding communication for a transmission system |
| 02/25/1998 | EP0824706A1 Method for automatically reducing orbit-received carrier acquisition and tracking thresholds |
| 02/24/1998 | US5721555 Frequency spectral line tracking receiver |
| 02/19/1998 | WO1998007045A1 Enhanced time of arrival method |
| 02/19/1998 | WO1998007044A1 Vehicular tracking and location |
| 02/19/1998 | CA2265721A1 Vehicular tracking and location |
| 02/18/1998 | CN1173633A Method for displaying current position of moving object in navigation device in accordance with position condition of moving object |
| 02/17/1998 | US5719567 System for enhancing navigation and surveillance in low visibility conditions |
| 02/11/1998 | CN1173226A An impulse radar with swept range gate |
| 02/10/1998 | US5717406 Enhanced position calculation |
| 02/10/1998 | US5717404 Satellite ephemeris determination system using GPS tracking techniques |
| 02/10/1998 | US5717403 Method and appartus for accurate frequency synthesis using global positioning system timing information |
| 02/05/1998 | WO1998004929A1 Integrity monitoring method and apparatus for gps and dgps receivers |
| 02/05/1998 | DE19630722A1 Satellite navigation receiver device for reprocessing satellite signals |
| 02/04/1998 | EP0822679A2 New CDMA code generator employing mixing ergodic transformation |
| 02/04/1998 | CN1172531A Dual frequency global positioning system |
| 01/29/1998 | WO1998003881A1 Differential ground station repeater |
| 01/27/1998 | US5712867 Two-way paging apparatus having highly accurate frequency hopping synchronization |
| 01/27/1998 | US5712641 Interference cancellation system for global positioning satellite receivers |
| 01/27/1998 | US5712639 Method for the localizing of a transceiver of data packets |
| 01/22/1998 | WO1998002984A2 Low power signal processing for spread spectrum receivers |
| 01/22/1998 | WO1998002975A1 Method for efficient sampling in a correlator |
| 01/22/1998 | WO1998002974A1 Parallel correlator for a spread spectrum receiver |
| 01/22/1998 | WO1998002973A1 Pre-acquisition frequency offset removal in a gps receiver |
| 01/22/1998 | WO1998002972A1 Method for doppler-replica harmonic avoidance in a gps receiver |
| 01/22/1998 | WO1998002830A1 Low power parallel correlator for measuring correlation between digital signal segments |
| 01/22/1998 | WO1998002762A2 Method and apparatus for precision geolocation |
| 01/22/1998 | WO1998002759A1 Gps receiver with efficient signal acquisition |
| 01/22/1998 | WO1998002758A1 Power efficient receiver |
| 01/22/1998 | DE19634781C1 Remote angle recognition method e.g. for joystick etc. |
| 01/20/1998 | CA2066540C Multiple user digital receiving apparatus and method with time division multiplexing |
| 01/15/1998 | WO1998001768A1 Ambiguity resolution in mcps |
| 01/13/1998 | US5708679 Hitless ultra small aperture terminal satellite communication network |
| 01/13/1998 | US5708439 Method and apparatus for observing unknown codes on satellite positioning system |
| 01/13/1998 | US5708436 Multi-mode radar system having real-time ultra high resolution synthetic aperture radar (SAR) capability |
| 01/08/1998 | WO1998000727A1 Fault detection and exclusion used in a global positioning system (gps) receiver |
| 01/08/1998 | DE19625452A1 Transmitting signals to motor vehicles |
| 01/07/1998 | EP0815463A1 Method and device for analysing radio navigation signals |
| 01/06/1998 | US5704583 Range pole data collector holder |
| 12/31/1997 | CN2271717Y Microwave radiometer with digital automatic compensation |
| 12/30/1997 | US5703597 Adaptive carrier phase lock loop in a GPS receiver |
| 12/30/1997 | US5703591 Aircraft N-number control system |
| 12/30/1997 | US5702070 Apparatus and method using relative GPS positioning for aircraft precision approach and landing |
| 12/29/1997 | EP0814435A2 Salvagable device for storing and archiving operation-specific data of vessels |
| 12/29/1997 | EP0814345A2 Mobile object positioning system, especially for vehicles |
| 12/29/1997 | EP0814343A2 Optical head of optical beacon |
| 12/29/1997 | EP0813698A1 Synchronization system for a shared channel communication system |
| 12/29/1997 | EP0813689A1 Differential ranging for a frequency-hopped remote position determination system |
| 12/29/1997 | EP0813687A1 Doppler positioning using non-planar movement of source |
| 12/24/1997 | CN1168476A Extra long electromagnetic wave remote detecting method and equipment |
| 12/23/1997 | US5701328 Chirped spread spectrum positioning system |
| 12/18/1997 | WO1997047987A1 Spoofing detection system for a satellite positioning system |
| 12/18/1997 | WO1997047986A1 Satellite signal receiver with position extrapolation filter |
| 12/18/1997 | WO1997047985A1 Satellite signal receiver with detector of incoherence between code phase and carrier frequency measurements |
| 12/18/1997 | WO1997047984A1 Satellite signal receiver with integrity control and exclusion of defective axes |
| 12/18/1997 | WO1997047983A1 Satellite signal receiver with speed computing integrity control |
| 12/18/1997 | CA2257194A1 Satellite signal receiver with detector of incoherence between code phase and carrier frequency measurements |
| 12/10/1997 | EP0811188A1 Means for management, information and communication |
| 12/09/1997 | CA2066280C Image pickup system with a image pickup device for control |
| 12/04/1997 | WO1997045962A1 Method of transmitting and receiving data, system and receiver therefor |
| 12/03/1997 | EP0810447A2 Two-frequency glidepath transmitter station for the standardised instrument landing system ILS |
| 11/27/1997 | WO1997044682A1 Variable suppression of multipath signal effects |
| 11/27/1997 | WO1997044681A1 Suppression of multipath signal effects |
| 11/27/1997 | WO1997044680A1 Weighted carrier phase multipath reduction |
| 11/27/1997 | WO1997039433A3 Method and apparatus for real-time ionospheric mapping and dynamic forecasting |
| 11/27/1997 | DE19615905C1 Recoverable device for storage and archival of operational data for boat or ship |
| 11/25/1997 | US5692008 Apparatus for estimating a line of sight signal propagation time using a reduced-multipath correlation function |
| 11/25/1997 | US5691726 GPS/radio antenna combination |
| 11/20/1997 | WO1997043661A1 Method and apparatus for distance measurement |
| 11/20/1997 | CA2255037A1 Method and apparatus for distance measurement |
| 11/19/1997 | EP0807829A2 Satellite ephemeris determination system using GPS tracking techniques |
| 11/18/1997 | US5689820 Vehicle location unit |
| 11/18/1997 | US5689431 Golf course yardage and information system |
| 11/18/1997 | US5689273 Aircraft surface navigation system |
| 11/18/1997 | US5689271 Method and apparatus for civilian receiver operation with P(Y) code in satellite positioning system receiver |
| 11/12/1997 | EP0806679A1 Receiving device for a navigation system, especially for satellite |
| 11/12/1997 | EP0805988A1 Method for automatically lowering the acquisition and tracking thresholds of spread spectrum codes received in orbit |
| 11/12/1997 | CN1164807A Wireless communication system and method and system for detection of position of radio mobile station |
| 11/12/1997 | CN1164779A Information transmission facilities and method using radiating guide system |
| 11/11/1997 | US5687196 Range and bearing tracking system with multipath rejection |
| 11/11/1997 | US5686925 System for obtaining a velocity of a moving object from a speed sensor with an improved adjustment of a speed conversion coefficient |
| 11/06/1997 | WO1997041457A1 Satellite synchronized 3-d magnetotelluric system |
| 11/06/1997 | DE19616469A1 Differential GPS navigation system |
| 11/05/1997 | EP0805358A2 Method of and apparatus for calculating position of movable body in navigation system, and method of and apparatus for correcting the position |
| 11/05/1997 | EP0804743A1 Global space radio navigation and radiolocation system, beacon, and receiver used in said system |
| 11/04/1997 | US5684755 Underwater pinger automatic deployment switch |
| 11/04/1997 | US5684696 System and method for enabling an autonomous vehicle to track a desired path |
| 10/30/1997 | WO1997040398A2 Spread spectrum receiver with multi-bit correlator |
| 10/30/1997 | CA2252903A1 Spread spectrum receiver with multi-bit correlator |
| 10/23/1997 | WO1997039433A2 Method and apparatus for real-time ionospheric mapping and dynamic forecasting |
| 10/21/1997 | US5680313 Computer based method |
| 10/21/1997 | US5680306 System, and method for enabling a vehicle to track a path |
| 10/16/1997 | WO1997030360A3 Method and arrangement for determining the position of a mobile radio terminal |
| 10/16/1997 | DE19621494C1 Signal device for communication between traffic lights and vehicle |
| 10/14/1997 | US5678169 Receivers for down-conversion of L1 and L2 carrier frequency transmissions from orbiting global positioning system (GPS) satellites |
| 10/14/1997 | US5677841 Control target surveillance system |
| 10/08/1997 | EP0799753A2 Method and device for locating vehicles |
| 10/08/1997 | EP0799428A1 An impulse radar with swept range gate |
| 10/08/1997 | EP0799427A1 A method for integrity monitoring in position determination |
| 10/02/1997 | DE19612876A1 Microwave measuring system for position and coordinate measurements in machine tool |