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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10/30/2002 | CN1377465A System and method for incremental broadcast of GPS navigation data in a cellular network |
10/29/2002 | US6473694 Method, apparatus and system for estimating user position with a satellite positioning system in poor signal conditions |
10/29/2002 | US6473034 Method and system for anti-jamming simulation |
10/29/2002 | US6473030 Infrastructure-aiding for satellite navigation receiver and method |
10/29/2002 | US6473003 Selectable range ring for an ADS-B CDTI cockpit display |
10/24/2002 | WO2002085047A1 Method and system for validating a mobile station location fix |
10/24/2002 | WO2002084322A1 Satellite position measurement system |
10/24/2002 | WO2002084320A2 Method and system for increasing bit rate of digital messages in loran-c navigation systems |
10/24/2002 | WO2002069507A3 System and method for computing navigation information in the presence of interference |
10/24/2002 | US20020156576 Vehicle activity tracking |
10/24/2002 | US20020156556 Multifunctional mobile appliance |
10/24/2002 | US20020155845 Method and apparatus for high-accuracy position location using search mode ranging techniques |
10/24/2002 | US20020155809 Method and system for determining the phase and amplitude of a radio occultation signal |
10/24/2002 | US20020154777 System and method for authenticating the location of content players |
10/24/2002 | US20020154681 Method in the synchronization of a receiver, and a receiver |
10/24/2002 | US20020154060 System and method for providing worldwide seamless location coverage |
10/24/2002 | US20020154058 Mode determination for mobile GPS terminals |
10/24/2002 | US20020154056 Method and apparatus providing improved postion estimate based on an initial coarse postion estimate |
10/24/2002 | CA2443210A1 Method and system for increasing bit rate of digital messages in loran-c navigation systems |
10/23/2002 | CN1375707A Method, system and electronic device for determining information unit boundary |
10/22/2002 | US6470264 Portable information-providing apparatus |
10/22/2002 | US6469663 Method and system for GPS and WAAS carrier phase measurements for relative positioning |
10/17/2002 | WO2002082812A1 Robust data transmission using broadcast digital television signals |
10/17/2002 | WO2002082120A1 Gps-based positioning system for mobile gps terminals |
10/17/2002 | WO2002082119A1 Receiver for determining a mobile object orientation |
10/17/2002 | WO2002082117A1 Device for displaying current speed |
10/17/2002 | WO2002063327A3 Method and apparatus for determining the position of a mobile communication device |
10/17/2002 | US20020151314 Positioning apparatus, positioning method, and positioning system |
10/17/2002 | US20020150150 Spread spectrum receiver with multi-bit correlator |
10/17/2002 | US20020149516 Method and apparatus for determining location using a coarse position estimate |
10/17/2002 | US20020149515 Method for positioning, a positioning system, and an electronic device |
10/17/2002 | US20020149511 Method for measuring distance and position using spread spectrum signal, and an equipment using the method |
10/17/2002 | CA2411107A1 Receiver for determining a mobile object orientation |
10/16/2002 | EP1248940A1 Methods and apparatus for measuring orientation and distance |
10/16/2002 | CN1375063A GPS receiver with emergency communication channel |
10/16/2002 | CN1375062A Method for determining a change in a communication signals and using this information to improve SPS signal reception and processing |
10/15/2002 | US6466958 Parallel frequency searching in an acquisition correlator |
10/15/2002 | US6466846 Method, apparatus, system, and computer software program product for determining position integrity in a system having a global navigation satellite system (GNSS) component |
10/15/2002 | US6466612 Multipath processing for GPS receivers |
10/15/2002 | US6466565 Measurement of spatial signature information in CDMA wireless communication systems |
10/15/2002 | US6466163 GPS receiver and portable communication apparatus |
10/15/2002 | US6466161 Location services system that reduces auto-correlation or cross-correlation in weak signals |
10/15/2002 | US6465963 Headlight control system utilizing information from a microwave receiver |
10/10/2002 | WO2002079797A1 Position measuring method and mobile communication terminal |
10/10/2002 | WO2001086316A3 Method and apparatus for compensating local oscillator frequency error |
10/10/2002 | US20020146065 Pseudo-noise correlator for GPS spread-spectrum receiver |
10/10/2002 | US20020145564 Antenna selection method for a wireless location system |
10/10/2002 | US20020145560 Gps-based positioning system for mobile gps terminals |
10/10/2002 | US20020145557 Location-determination method and apparatus |
10/09/2002 | EP1248117A2 Method, apparatus and system for estimating user position with a satellite positioning system in poor signal conditions |
10/09/2002 | EP1247115A2 Methods and systems for monitoring multiple channels in a very high frequency omni-directional range receiver |
10/09/2002 | EP1247074A1 Global positioning system roadside integrated precision positioning system |
10/09/2002 | CN1373371A Receiver for assisting satellite in navigation with foundation facilities, and method therefor |
10/08/2002 | US6463386 Global positioning system (GPS) and GPS receiver |
10/08/2002 | US6463290 Mobile-assisted network based techniques for improving accuracy of wireless location system |
10/08/2002 | US6463091 Spread spectrum receiver using a pseudo-random noise code for ranging applications in a way that reduces errors when a multipath signal is present |
10/08/2002 | US6462708 GPS-based positioning system for mobile GPS terminals |
10/08/2002 | US6462707 Satellite position monitor |
10/03/2002 | WO2002077662A1 Method and apparatus for locating the source of an unknown signal |
10/03/2002 | WO2002077661A2 Reduced acquisition time for gps cold and warm starts |
10/03/2002 | US20020143467 GPS receiver with cross-track hold |
10/03/2002 | US20020142797 Portable wireless communication systems |
10/03/2002 | US20020142783 Reduced acquisition time for GPS cold and warm starts |
10/03/2002 | US20020141522 Method and apparatus for processing digitally sampled signals at a resolution finer than that of a sampling clock |
10/03/2002 | US20020140599 Integrated dive flag/float and GPS navigation system for scuba divers |
10/03/2002 | CA2407890A1 Method and apparatus for locating the source of an unknown signal |
10/02/2002 | DE10113932A1 Vorrichtung zur Anzeige der aktuellen Geschwindigkeit Means for displaying the current speed |
10/02/2002 | CN1372393A Position detection device, method and system |
10/02/2002 | CN1372146A GPS antenna for two-wheel vehicle |
10/02/2002 | CN1091978C Delay locked loop for use in GPS signal receiver |
10/01/2002 | US6459989 Portable integrated indoor and outdoor positioning system and method |
10/01/2002 | US6459407 Cross-correlation system for time recovery in network-assisted GPS positioning |
10/01/2002 | US6459406 GPS patch antenna attitude reference system |
10/01/2002 | US6459405 Satellite-based location system employing knowledge-based sequential signal search strategy |
10/01/2002 | US6459402 Method for measuring distance and position using spectrum signal, and an equipment using the method |
09/26/2002 | WO2002075349A2 Time acquisition in a wireless position determination system |
09/26/2002 | WO2002075250A1 Method and apparatus for measuring the distance between an object and a known measuring point |
09/26/2002 | WO2001020360A9 Solution separation method and apparatus for ground-augmented global positioning system |
09/26/2002 | US20020138199 Global positioning system tag system |
09/26/2002 | US20020138198 GPS receiving apparatus |
09/26/2002 | US20020135511 Time synchronization of a satellite positioning system enabled mobile receiver and base station |
09/26/2002 | US20020135510 Hybrid system for position determination by a mobile communications terminal |
09/26/2002 | US20020135509 Self-calibrating electronic distance measurement instrument |
09/25/2002 | EP1244225A2 System, method and device for determining a boundary of an information element |
09/25/2002 | EP1243940A2 Apparatus and method for performing open loop tracking of a signal |
09/24/2002 | US6456940 Minimum safe altitude system and method |
09/24/2002 | US6456852 Internet distributed real-time wireless location database |
09/24/2002 | US6456240 High-G, low energy beacon system |
09/24/2002 | US6456237 Method of measuring time difference, and radio system |
09/24/2002 | US6456233 Methods and apparatuses of positioning a mobile user in a system of satellite differential navigation |
09/19/2002 | WO2002073231A2 Server-assisted position determination in a radio network |
09/19/2002 | US20020133294 Satellite based collision avoidance system |
09/19/2002 | US20020133293 Concealable portable GPS communication system |
09/19/2002 | US20020132625 Location detection method, location detection system and location detection program |
09/19/2002 | US20020130813 Ocean altimetry interferometric method and device using GNSS signals |
09/19/2002 | US20020130812 Method and apparatus for determining location using a coarse position estimate |
09/19/2002 | CA2440318A1 Server-assisted position determination in a radio network |
09/18/2002 | EP1240531A1 A receiver for a satellite based position location system |
09/18/2002 | CN1370348A Superregenerative AM demodulator |
09/18/2002 | CN1370279A Method and appts. for locating source of unknown signal |