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)
08/2004
08/03/2004US6771625 Pseudolite-augmented GPS for locating wireless telephones
08/03/2004US6771220 Memory efficient jammer locator for a digital adaptive beamforming receiver
08/03/2004US6771215 Determination of the transmission time of a signal part in a positioning system
08/03/2004US6771214 GPS near-far resistant receiver
08/03/2004US6771212 GPS receiver with recalibration and methods for recalibrating and reconfiguring a GPS receiver
08/03/2004US6771211 Method, system and devices for positioning a receiver
08/03/2004CA2289752C Personnel locating system
07/2004
07/29/2004WO2004063897A2 Real-time software receiver
07/29/2004WO2004063763A1 Method and apparatus for performing timing synchronization
07/29/2004WO2004063762A1 Dual redundant gps anti-jam air vehicle navigation system
07/29/2004WO2004063761A2 Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates
07/29/2004US20040147329 Personal golfing assistant and method and system for graphically displaying golf related information and for collection, processing and distribution of golf related data
07/29/2004US20040147239 Determination of the position of a pulse peak
07/29/2004US20040147228 Method and apparatus for signal processing in a satellite positioning system
07/29/2004US20040145975 Portable electronic instrument, such as a wristwatch, including, in particular, an antenna for receiving and/or transmitting radio-frequency signals
07/29/2004US20040145517 Method and apparatus for a satellite payload and radiodetermination
07/29/2004CA2512271A1 Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates
07/29/2004CA2510147A1 Dual redundant gps anti-jam air vehicle navigation system
07/28/2004EP1440288A1 Method and system for verifying the position of a mobile station using checkpoints
07/27/2004US6768767 GPS receiver capable of receiving C/A and P codes on multiple channels
07/27/2004US6768465 Low probability of intercept (LPI) millimeter wave beacon
07/27/2004US6768452 System and method for providing time to a satellite positioning system (SPS) receiver from a networked time server
07/27/2004US6768451 Method for determining the correlation between a received beacon signal and a reconstructed signal
07/27/2004US6768448 Apparatus and method for time maintenance in a satellite position system receiver
07/22/2004WO2004062283A1 Digital television transmitter and receiver for transmitting and receiving dual stream using 4 level vestigial side band robust data
07/22/2004WO2004062240A2 Method and mobile station for determining a code phase
07/22/2004US20040143612 Procedure for estimating a parameter of a local maxima or minima of a function
07/22/2004US20040143393 Flight information computation and display
07/22/2004US20040142701 Method and apparatus for adjusting reference oscillator frequency in a mobile wireless device
07/22/2004US20040141574 Determination of the code phase between a code modulated signal and a replica code sequence
07/22/2004US20040141549 Method and apparatus for performing signal correlation using historical correlation data
07/22/2004US20040141173 Information processing device
07/22/2004US20040140932 Targeted data transmission and location services using digital television signaling
07/22/2004DE10301971B4 Positionsbestimmungsvorrichtung Position determining device
07/21/2004WO2005071431A1 Inertial gps navigation system with modified kalman filter
07/21/2004EP1439401A1 High-sensitivity satellite positioning system receivers and reception methods
07/21/2004EP1438786A2 Fm modulator
07/21/2004EP1438602A2 Method for open loop tracking gps signals
07/21/2004CN1514941A Method and apparatus for determining location using coarse position estimate
07/21/2004CN1158785C System and method for narrowing range of frequency uncertainly of doppler shifted signal
07/20/2004US6765531 System and method for interference cancellation in a location calculation, for use in a wireless location system
07/15/2004WO2004029646A3 Low power detection and compensation for satellite systems
07/15/2004US20040138811 Gps receiver apparatus and receiving method
07/15/2004US20040137963 Irst-worm electronic instrument with antenna
07/15/2004US20040137916 Method, apparatus and system for GPS time synchronization using cellular signal bursts
07/15/2004US20040137914 Communications system that reduces auto-correlation or cross-correlation in weak signals
07/15/2004US20040136446 Pseudo-noise correlator for GPS spread-spectrum receiver
07/15/2004US20040135722 Saddle-type vehicle equipped with a navigation system
07/15/2004US20040135721 Method and system for estimating ionospheric delay using a single frequencey or dual frequency gps signal
07/14/2004EP1437014A2 System for utilizing cell information to locate a wireless device
07/14/2004EP1436996A1 Interactive protocol for remote management of access control to scrambled data
07/14/2004EP1436958A1 A digital implementation of multi-channel demodulators
07/14/2004EP1436909A1 Satellite positioning system receiver with reference oscillator circuit and methods therefor
07/14/2004CN1512142A Personal positioning monitoring method and device with life sign detection function
07/14/2004CN1157868C GPS receiver with search frequency band switchover function and terminal equipment
07/13/2004US6762715 Positioning receiver and positioning calculation method
07/13/2004US6762714 Low cost system and method for making dual band GPS measurements
07/13/2004US6762710 Target designation system
07/13/2004US6762600 Method and apparatus for electromagnetic position and orientation tracking with distortion compensation employing a modulated signal
07/13/2004CA2145964C Feeding method and device, particularly for a doppler vor system, modulator suitable for the same and doppler vor system
07/08/2004WO2004057364A2 Method and system for real time navigation using satellite transmitted three-carrier radio signals and ionospheric corrections
07/08/2004WO2004057361A1 Acoustic location determination method and system
07/08/2004WO2004040329A3 System and method for estimating clock acceleration and location determination
07/08/2004WO2003104834A3 Tracking system and associated method
07/08/2004US20040132516 Mobile telephone system capable of effectively utilizing GPS information even if direct reception by a mobile telephone apparatus is difficult
07/08/2004US20040132421 Mobile communications device with GPS receiver and common clock source
07/08/2004US20040130841 Method and apparatus for providing an integrated communications, navigation and surveillance satellite system
07/08/2004US20040130485 Position estimation using a network of a global-positioning receivers
07/07/2004CN1510433A Satellite navigation positioning systems
07/07/2004CN1157091C Selection of location measurement units for determining position of mobile communication station
07/07/2004CN1156994C Multi-channel digital receiver for GPS
07/06/2004US6760664 Autonomous navigation system based on GPS and magnetometer data
07/06/2004US6760663 Solution separation method and apparatus for ground-augmented global positioning system
07/06/2004US6760592 System and method for cyclic carrier de-rotation for earliest time of arrival estimation in a wireless communications system
07/06/2004US6760582 Method and apparatus for testing assisted position location capable devices
07/06/2004US6760364 Multipath processing for GPS receivers
07/06/2004US6760043 System and method for web based enhanced interactive television content page layout
07/06/2004US6759960 System and method for providing improved services in a geographic-based network system
07/01/2004WO2004055541A1 Method and device for generating a constant envelope navigation signal with four independent codes
07/01/2004WO2004015443A3 System and method for acquisition management of subject position information
07/01/2004US20040125868 Acquisition and tracking of burst code signals
07/01/2004US20040125015 Method and mobile station for determining a code phase
07/01/2004US20040125014 Power saving device and method for gps receiver
07/01/2004US20040123903 Hydrant monument
06/2004
06/30/2004EP1434360A1 Synchronization circuit
06/30/2004EP1434359A1 Method for generating a sequence synchronised with an external signal, synchronization circuit and receiver
06/30/2004EP1433001A2 Global positioning apparatus and method for using a temperature compensated oscillator to perform a position fix
06/30/2004EP1433000A2 Gps receiver and related method
06/30/2004EP0941487B1 Method and apparatus for determining time for gps receivers
06/30/2004EP0940016B1 A signal correlation technique for a spread spectrum receiver to reduce multipath errors
06/30/2004CN2622957Y GP terminal
06/30/2004CN1155835C Combined GPS positioning system and communication system utilizing shared circuitry
06/29/2004US6757610 Method for rapid location determination using parametric values obtained in a previous location determination
06/29/2004US6756941 Method for calculating absolute time difference in radio system, and radio system
06/24/2004US20040122881 Integrated circuit for code acquisition
06/24/2004US20040121756 Individual emergency tracking system
06/24/2004US20040120440 Synchronization circuit
06/24/2004US20040120439 Method for producing a sequence synchronized with an external signal and synchronization circuit and receiver
06/24/2004US20040120385 Integrated circuit for code acquisition
06/24/2004US20040119639 System and method for providing time to a satellite positioning system (sps) receiver from a networked time server