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