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)
03/2003
03/25/2003US6538600 Wireless assisted GPS using a reference location
03/20/2003WO2003024131A1 System for utilizing cell information to locate a wireless device
03/20/2003WO2003023445A1 Interference suppression method and device, in reception, for a wideband radio signal
03/20/2003WO2003023444A1 Gps near-far resistant receiver
03/20/2003WO2003023442A2 Gps receiver and related method
03/20/2003WO2003023441A2 System and method to estimate the location of a receiver
03/20/2003WO2003023440A2 System and method to estimate the location of a receiver in a multi-path environment
03/20/2003WO2003023434A2 Lpi millimeter wave beacon
03/20/2003WO2002088767A3 Mobile communication apparatus
03/20/2003WO2002059640A3 Peer to peer information exchange for mobile communications devices
03/20/2003US20030056221 Digital implementation of multi-channel demodulators
03/20/2003US20030055562 Global positioning system roadside integrated precision positioning system
03/20/2003US20030054839 Cell phone position measurement system, position measurement method, and cell phone terminal
03/20/2003US20030054834 Method and system for verifying the position of a mobile station using checkpoints
03/20/2003US20030054756 Techniques for circumventing jamming of global positioning system receivers
03/20/2003US20030052817 Method and apparatus for processing of satellite signals without time of day information
03/20/2003US20030052797 Speed trap detection and warning system
03/20/2003CA2459369A1 Interference suppression method and device, in reception, for a wideband radio signal
03/19/2003EP1293797A1 Method and electronic device for performing positioning
03/19/2003EP1292843A1 A method of despreading gps spread spectrum signals
03/19/2003EP0974063B1 Method for checking the reliability of nominal position indications
03/18/2003US6535815 Position updating method for a mobile terminal equipped with a positioning receiver
03/18/2003US6535801 Method and apparatus for accurately determining the position of satellites in geosynchronous orbits
03/18/2003US6535548 Mobile wireless communication devices for receiving spread spectrum signals and methods therefor
03/18/2003US6535163 Determining location information using sampled data containing location-determining signals and noise
03/13/2003WO2003021714A2 An antenna system and rf signal interference/jamming abatement in a terrestrial gps apparatus and method
03/13/2003WO2002052225A3 Geographical navigation using multipath wireless navigation signals
03/13/2003WO2002017639B1 System and method for television enhancement
03/13/2003US20030050949 Simultaneous computation of multiple complex number multiplication products
03/13/2003US20030050089 Mobile station having indoor/outdoor mode shifting function
03/13/2003US20030050082 Transmission system and coding communication method for a transmission system
03/13/2003US20030050077 Mobile communication terminal and method having calculated terminal position uncertainty check function
03/13/2003US20030048218 GPS based tracking system
03/12/2003EP1292043A1 Position fixing system
03/12/2003EP1291665A2 Cross correlation system for time recovery in network-assisted GPS positioning
03/12/2003EP1290469A1 Gps receiver
03/12/2003EP1290465A1 Personal locatiom detection system
03/12/2003EP1290463A2 Method and apparatus for compensating local oscillator frequency error
03/12/2003CN1402836A System for processing directional radio signals
03/12/2003CN1402586A Method and device for estimating position by signal arrival time
03/12/2003CN1402443A Radio communication terminal unit and method for sending locating information
03/11/2003US6532255 Method and arrangement for minimizing the autocorrelation error in the demodulation of a spread-spectrum signal subject to multipath propagation
03/11/2003US6532251 Data message bit synchronization and local time correction methods and architectures
03/06/2003WO2003019892A1 Navigation data prediction for gps and glonas weak signal tracking
03/06/2003WO2003018398A1 Safety system at sea for accurately locating a shipwrecked navigator
03/06/2003WO2003018397A1 Safety system at sea equipped with at least a locator and survival radio beacon for a shipwrecked person
03/06/2003WO2002059636A3 Navigation aid
03/06/2003WO2002041504A3 Methods and apparatus for identifying asset location in communication networks
03/06/2003WO2002005080A3 Methods for automatically detecting gps hardware
03/06/2003US20030045305 Positioning system of wireless terminal
03/06/2003US20030045304 Wireless terminal
03/06/2003US20030045303 Mobile station and its program
03/06/2003US20030045302 Mobile communication system and program for specifying location of terminal unit
03/06/2003US20030043086 Antenna system and RF signal interference abatement method
03/06/2003US20030043069 Wireless communications terminal, computer program executable by wireless communications terminal and method for outputting positional information from wireless communications terminal
03/06/2003DE20219388U1 Mobile information system, uses navigation to supply location related data such as for commercial and emergency services locations
03/05/2003EP1289331A2 Method of locating a mobile station based on observed time difference
03/05/2003EP1288672A1 Method and apparatus for processing signals for ranging applications
03/05/2003EP1287624A1 A method of despreading a spread spectrum signal
03/05/2003EP1287375A1 Determining time in a gps receiver
03/05/2003EP1166143B1 Systems and methods for resolving gps pseudo-range ambiguity
03/05/2003EP0779990B1 Time-of-flight radio location system
03/05/2003CN1401083A Hierarchical delay lock loop code tracking system with multipath correction
03/05/2003CN1400474A All-solid integrated smalltype millimeter-ware anticollision radar equipment
03/04/2003US6529829 Dead reckoning system for reducing auto-correlation or cross-correlation in weak signals
03/04/2003US6529828 Integrated position and direction system with map display oriented according to heading or direction
03/04/2003US6529708 Efficient determination of time of arrival of radio communication bursts
03/04/2003US6529165 Radio positioning systems
03/04/2003US6529160 Method and system for determining carrier frequency offsets for positioning signals
02/2003
02/27/2003WO2003017518A1 Data message bit synchronization and local time correction methods and architectures
02/27/2003WO2003017503A2 Spread spectrum receiver architectures and methods therefor
02/27/2003WO2003016940A2 Tag tracking
02/27/2003WO2003016818A2 Three dimensional mapping system for automotive vehicles
02/27/2003WO2002086442A3 Tracking device
02/27/2003WO2002075349A3 Time acquisition in a wireless position determination system
02/27/2003WO2002062039A3 Mobile computing and communication
02/27/2003WO2002050561A3 Gps receiver tracking system
02/27/2003US20030040869 Providing time sychronization to a gps locator
02/27/2003US20030040852 Self-monitoring satellite system
02/27/2003US20030040323 Method of locating a mobile station based on observed time difference
02/27/2003US20030039172 Temporal and spectral spread submarine locator transmitter, and method and installation using same
02/26/2003EP1285419A2 Selectable range ring for a cockpit display
02/26/2003EP1285232A1 Global positioning system tag system
02/25/2003US6526352 Method and arrangement for mapping a road
02/25/2003US6526322 Shared memory architecture in GPS signal processing
02/25/2003US6525689 Method of despreading GPS spread spectrum signals
02/25/2003US6525688 Location-determination method and apparatus
02/25/2003US6525687 Location-determination method and apparatus
02/20/2003WO2003015258A2 Fm modulator
02/20/2003WO2003014761A2 Method and apparatus for processing signals for ranging applications
02/20/2003WO2002030005A8 Systems and methods for providing gps time and assistance data in a packet switched mobile communications network
02/20/2003WO2002017643A8 Method of enhancing streaming media content
02/20/2003US20030036849 Track model constraint for GPS position
02/20/2003US20030036830 Three-dimensional mapping systems for automotive vehicles and other articles
02/20/2003US20030036390 Method of and system for estimating a time of arrival of a radio signal
02/20/2003CA2456131A1 Radio pulse communications systems
02/19/2003EP1284050A1 Method and apparatus for code phase tracking
02/18/2003US6522890 Location and tracking system
02/18/2003US6522698 Method of transmitting and receiving data, system and receiver therefor
02/18/2003US6522682 Triple multiplexing spread spectrum receiver
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