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)
01/2003
01/09/2003WO2003003615A1 Methods for determining times and changes of times of transmission, radio communications system and processor
01/09/2003WO2002050561A9 Gps receiver tracking system
01/09/2003WO2002046788A3 Method and apparatus for determining an error estimate in a hybrid position determination system
01/09/2003US20030008667 System and method for a GPS enabled antenna
01/09/2003US20030008660 System and method for a GPS enabled antenna
01/09/2003US20030008622 System and method for the detection and compensation of radio signal time of arrival errors
01/09/2003US20030008619 Location-based information service for identifying areas with degraded radio signal strength
01/09/2003US20030006935 Local wireless digital tracking network
01/09/2003US20030006930 Altitude estimation system and method
01/08/2003EP1274150A1 Wrist-watch with antenna
01/08/2003EP1273070A1 Microwave antenna for use in a vehicle
01/08/2003EP1272869A2 Method and apparatus for using assistance data relating to satellite positioning systems
01/08/2003EP1272868A1 Temporal and spectral spread submarine locator transmitter, and method and installation using same
01/08/2003EP0958530B1 Method and apparatus for satellite positioning system based time measurement
01/08/2003CN1389741A Method for improving signal catching in global positioning system receiver
01/08/2003CN1389710A Multiple-sensor and multiple-object information fusing method
01/07/2003US6505122 Method and apparatus for providing accurate position estimates in instances of severe dilution of precision
01/07/2003US6504794 Tracking, safety and navigation system for firefighters
01/07/2003US6504610 Method and system for positioning an autonomous mobile unit for docking
01/07/2003US6504503 Peer-to-peer global positioning system
01/03/2003WO2003001699A1 System and method for the detection and compensation of radio signal time of arrival errors
01/03/2003WO2003001698A1 Spectrum spreading signal demodulation method and apparatus
01/03/2003WO2003001400A2 Synthesizing coherent correlation sums at one or multiple carrier frequencies using correlation sums calculated at a coarse set of frequencies
01/03/2003WO2003001236A2 Method and apparatus for providing accurate position estimates in instances of severe dilution of precision
01/03/2003WO2003001235A2 Determining location information from sampled positioning signals
01/03/2003WO2003001234A2 Extracting fine-tuned estimates from correlation functions evaluated at a limited number of values
01/03/2003WO2003001232A2 Location-determination method and apparatus
01/03/2003WO2003001230A2 Signal acquisition using data bit information
01/03/2003WO2003001229A2 Determining the spatio-temporal and kinematic parameters of a signal receiver and its clock by combination of different information.
01/03/2003CA2450308A1 System and method for the detection and compensation of radio signal time of arrival errors
01/02/2003US20030004640 Method and apparatus for providing accurate position estimates in instances of severe dilution of precision
01/02/2003US20030004639 Positioning equipment
01/02/2003US20030002564 Method for controlling the operation of a positioning receiver, and an electronic device
01/02/2003US20030001732 Travel road detector
01/02/2003EP1271178A2 Positioning system for digital telephone networks
01/02/2003EP1271102A2 Spread spectrum receiver with multi-bit correlator
01/02/2003EP1269216A2 Enhanced gps receiver utilizing wireless infrastructure
01/02/2003EP1269215A2 Accurate gps time estimate based on information from a wireless communications system
01/02/2003DE20214382U1 Global Positioning System module is included on standard size chip card incorporating antenna, memory module and central control module
12/2002
12/31/2002US6501543 Apparatus and method for determining position
12/31/2002US6501429 Portable information processing apparatus
12/31/2002US6501424 Use of GPS correction data on trans-oceanic routes
12/31/2002US6501420 Mobile cellular telephone comprising a GPS receiver
12/31/2002US6501393 System and method for using impulse radio technology to track and monitor vehicles
12/31/2002US6501340 Oscillator with frequency stabilizing circuit and method of constructing same
12/29/2002CA2351926A1 Miniaturized locating apparatus
12/27/2002WO2002103383A2 Method and apparatus for distributing satellite tracking information
12/27/2002WO2002103381A2 Method and apparatus for creating and distributing satellite orbit and clock data
12/27/2002WO2002059638A3 Position determination in a wireless communication system with detection and compensation for repeaters
12/27/2002WO2002052871A3 Position updating method for a mobile terminal equipped with a positioning receiver
12/26/2002US20020199196 Position location using global positioning signals augmented by broadcast television signals
12/26/2002US20020198656 Inertial GPS navigation system
12/26/2002US20020198632 Method and arrangement for communicating between vehicles
12/26/2002US20020198001 Method and apparatus for an independent positioning system and augmentation of GPS
12/26/2002US20020197963 Data communications system including a local beacon
12/26/2002US20020196180 GPS for high altitude satellites
12/25/2002CN1097364C Management of status/alarm message of GPS receiver and broadcasting system time
12/24/2002US6498585 Method and apparatus for rapidly estimating the doppler-error and other receiver frequency errors of global positioning system satellite signals weakened by obstructions in the signal path
12/24/2002US6498584 GPS receiver and method thereof
12/19/2002WO2002101408A1 System and method for monitoring and displaying athlete characteristics
12/19/2002WO2002086534A3 System and method for providing worldwide seamless location coverage
12/19/2002US20020190898 Method and apparatus for creating and distributing satellite orbit and clock data
12/19/2002US20020190896 GPS-based positioning system for mobile GPS terminals
12/19/2002DE10126947A1 Drahtlos arbeitendes Daten-Übertragungssystem mit einer lokalen Sende-/Empfangseinrichtung (Bake) Wireless data transmission system working with a local transmitting / receiving device (beacon)
12/18/2002EP1267498A1 A method and apparatus for controlling the operation of a positioning receiver
12/18/2002EP1267175A2 Location determination using location data items received by short-range communication
12/18/2002EP1023612B1 Reduced global positioning system receiver code shift search space for a cellular telephone system
12/18/2002EP0951697B1 Method and system for motion analysis
12/18/2002EP0855041B1 A gps receiver and method for processing gps signals
12/18/2002CN1096754C Information transmission facilities and method using radiating guide system
12/18/2002CN1096611C Dual-frequency global positioning system
12/17/2002US6496533 Receiver having a memory search for fast acquisition of a spread spectrum signal
12/17/2002US6496145 Signal detector employing coherent integration
12/12/2002WO2002099454A2 Method and apparatus for generating and distributing satellite tracking information
12/12/2002WO2002099453A2 An inertial/gps navigation system
12/12/2002US20020188403 Method and apparatus for generating and distributing satellite tracking information
12/12/2002US20020188386 GPS based terrain referenced navigation system
12/12/2002US20020186794 Radiofrequency signal receiver with means for correcting the effects of multipath signals, and method for activating the receiver
12/12/2002US20020186167 Automatic synchronous tuning of narrowband receivers of a wireless location system for voice/traffic channel tracking
12/12/2002US20020186166 Location determination using location data items received by short-range communication
12/12/2002US20020186150 System and method for detecting interference in global positioning satellite signals
12/11/2002EP1265371A1 Radio receiver with means for correcting multipath effects and method
12/11/2002EP1264195A1 Telematics method for helicopters
12/11/2002EP1025453B1 Positioning system for digital telephone networks
12/11/2002CN1384369A RF signal receiver with device to improve receiving dynamic state of signal
12/10/2002US6493378 Methods and apparatuses for reducing multipath errors in the demodulation of pseudo-random coded signals
12/10/2002US6492944 Internal calibration method for receiver system of a wireless location system
12/08/2002CA2387891A1 Radiofrequency signal receiver with means for correcting the effects of multipath signals, and method for activating the receiver
12/05/2002WO2002077661A3 Reduced acquisition time for gps cold and warm starts
12/05/2002WO2002069301A3 Road safety system
12/05/2002WO2001035054A9 Methods and appparatus for measuring orientation and distance
12/05/2002US20020183925 Positioning apparatus and method
12/05/2002US20020183076 Multi-mode global positioning system for use with wireless networks
12/05/2002US20020183070 Method and system for GPS bit-edge synchronization in the presence of burst-mode interference
12/05/2002US20020181721 Sound source probing system
12/04/2002EP1263150A2 Data transmission system with a local beacon
12/04/2002EP1262791A2 Receiver and its method of synchronisation
12/04/2002EP1262790A2 Method and apparatus for determining time for GPS receivers
12/04/2002EP1057041B1 Stand alone global positioning system (gps) and method with high sensitivity
12/04/2002CN2524455Y Multifunctional alarm and communication devices