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)
01/2004
01/28/2004EP1384094A2 Altitude estimations system and method cross reference to related applications
01/28/2004EP1384091A2 Detecting tool orientation alignment depth and leveling
01/28/2004CN1471641A Method and apparatuses for using satellite status information in satellite positioning system
01/27/2004US6684158 Method for aiding a global positioning system
01/27/2004US6683923 Method and apparatus for detecting and tracking coded signals in a noisy background environment
01/27/2004US6683867 Parallel precise time transfer to multiple GPS units
01/27/2004US6683564 High-sensitivity satellite positioning system receivers and reception methods
01/27/2004US6683563 System for determining precise orbit of satellite and method thereof
01/22/2004WO2004008339A1 Method and device for detecting a similarity in the shape of sampled signals
01/22/2004WO2004008170A2 Assisted gps signal detection and processing system for indoor location determination
01/22/2004WO2003084079A3 Automatic sequential tuning of narrowband receivers of a wireless location system for voice/traffic channel tracking
01/22/2004US20040014505 Method of saving power by reducing active reception time in standby mode
01/22/2004US20040014433 Radio transceiver and method of controlling direction of radio-wave emission
01/22/2004US20040013175 Method and apparatus for detecting spread spectrum signal spread code synchronization
01/22/2004US20040012962 Emergency laser array signal light
01/22/2004US20040012669 Conferencing system with integrated audio driver and network interface device
01/22/2004US20040012526 Method and apparatus for reducing electromagnetic interference and jamming in GPS equipment operating in rolling environments
01/22/2004US20040012523 Method for positioning of an electronic device, a system, and an electronic device
01/22/2004US20040012522 Adaptive gps and ins integration system
01/22/2004US20040012521 Method for determining the correlation between a received beacon signal and a reconstructed signal
01/22/2004US20040012520 Self-calibrating electronic distance measurement instrument
01/22/2004US20040012518 Tracking system using miniaturized concealable communications module
01/20/2004US6681181 GPS receiver with improved immunity to burst transmissions
01/20/2004US6680695 Communications system that reduces auto-correlation or cross-correlation in weak signals
01/15/2004WO2004005954A2 Cross-correlation mitigation method and apparatus for use in a global positioning system receiver
01/15/2004US20040010369 Gps receiver tracking system
01/15/2004US20040010368 Assisted GPS signal detection and processing system for indoor location determination
01/15/2004US20040008660 Dedicated device for automatically accessing wireless internet network and supplying wireless packet data-based indoor-capable GPS locations
01/15/2004US20040008139 System and method to estimate the location of a receiver in a multi-path environment
01/14/2004EP1380852A1 Satellite position measurement system
01/14/2004EP1380851A1 Position calculation method and a mobile terminal and a server therefor
01/14/2004EP1379894A2 Memory reduction method for a dsp-based gps processor
01/14/2004EP1379893A1 Gps-based positioning system for mobile gps terminals
01/14/2004CN1468473A Mobile-assisted network based techniques for improving accuracy of wireless location system
01/14/2004CN1468023A Position calculation method and a mobile terminal and a server therefor
01/13/2004US6678510 Method, apparatus and system for GPS time synchronization using cellular signal bursts
01/13/2004US6677894 Method and apparatus for providing location-based information via a computer network
01/13/2004US6677893 Method and apparatus for locating the source of unknown signal
01/08/2004WO2004004366A2 Method and system for implementing a communications transceiver using modified gps user equipment
01/08/2004WO2004003703A2 A power saving mobility aware system and method
01/08/2004US20040006444 Apparatus and method for testing performance of mobile station having GPS function
01/08/2004US20040004570 Method and apparatus for interference reduction in a positioning system
01/08/2004CA2490851A1 A power saving mobility aware system and method
01/07/2004CN1466822A Method and apparatus for detecting spread spectrum signal spread code synchronization
01/07/2004CN1466739A Position recognizind device and position recognizind method and accouting device and accounting method
01/06/2004US6675018 Method of and system for estimating a time of arrival of a radio signal
01/06/2004US6675003 L1/L2 GPS receiver
01/06/2004US6674402 Global positioning system and global positioning apparatus
01/06/2004US6674401 High sensitivity GPS receiver and reception
01/06/2004US6674399 Methods and apparatuses of positioning a mobile user in a system of satellite differential navigation
01/06/2004US6674398 Method and apparatus for providing an integrated communications, navigation and surveillance satellite system
01/02/2004EP1376151A1 Position measuring method and mobile communication terminal
01/02/2004EP1373923A1 Receiver for determining a mobile object orientation
01/02/2004EP1373922A2 Reduced acquisition time for gps cold and warm starts
01/01/2004US20040002331 Method and system for implementing a communications transceiver using modified GPS user equipment
01/01/2004US20040000957 Method of temperature calibrating a numerically controlled oscillator using low tolerance master crystals
12/2003
12/31/2003WO2004001993A1 Reducing cross-interference in a combined gps receiver and communication system
12/31/2003WO2004001439A1 Generic satellite positioning system receivers with programmable inputs and selectable inputs and outputs
12/31/2003CN1465141A Spectrum spreading signal demodulation method and apparatus
12/31/2003CN1465015A Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris
12/30/2003US6671620 Method and apparatus for determining global position using almanac information
12/30/2003US6671377 System and method for downloading network information to mobile stations for location calculation
12/30/2003US6670916 Method and system for position calculation from calculated time
12/30/2003US6670915 Synthetic NAV-data for a high-sensitivity satellite positioning system receiver
12/30/2003US6670914 RF system for rejection of L-band jamming in a GPS receiver
12/30/2003US6670913 Self-calibrating electronic distance measurement instrument
12/30/2003CA2188667C Global positioning system (gps) receiver for recovery and tracking of signals modulated with p-code
12/30/2003CA2186251C Stock locator system using gps translator
12/25/2003US20030236621 Determining the position of a receiver and/or the system time of a positioning system
12/25/2003US20030236620 Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris
12/25/2003US20030234740 Method, receiver and system for determining the time of reception of a beacon signal
12/25/2003US20030234739 Generic satellite positioning system receivers with selectable inputs and outputs
12/25/2003US20030234738 Generic satellite positioning system receivers with programmable inputs
12/24/2003WO2003107031A2 Satellite positioning receiver using two signal carriers
12/24/2003WO2003034090A3 Variable bandwidth code-tracking loop with improved signal dynamics loop noise and sensitivity
12/24/2003WO2003008993A3 Tracker architecture for gps systems
12/24/2003WO2002091012A8 Altitude estimation system and method
12/24/2003CN1463366A Receiver for determining mobile object orientation
12/24/2003CN1132451C Gps辅助数据发送方法和系统 Gps auxiliary data transmission method and system
12/24/2003CA2486079A1 Satellite positioning receiver using two signal carriers
12/23/2003US6667723 System and method for a GPS enabled antenna
12/23/2003US6667713 Self-monitoring satellite system
12/18/2003WO2003104840A1 Adaptive spatial temporal selective attenuator with restored phase
12/18/2003WO2003104839A1 Gps receiver
12/18/2003WO2003104837A1 Reconfigurable geolocation system
12/18/2003WO2003104834A2 Tracking system and associated method
12/18/2003WO2003089953B1 Emergency beacon and method of adjusting beacon transmit period
12/18/2003WO2003060542A3 System for the efficient utilization of navigation satellites
12/18/2003WO2003035427A3 Individual transport control and communication system
12/18/2003US20030231704 GPS receiving apparatus and GPS satellite signal receiving method
12/18/2003US20030231580 Method and device to compute the discriminant function of signals modulated with one or more subcarriers
12/18/2003US20030231132 Method and apparatus for selecting optimal satellites in global positioning system
12/18/2003CA2489089A1 Reconfigurable geolocation system
12/18/2003CA2484901A1 Tracking system and associated method
12/17/2003CN1131657C Method of masuring time difference, and radio system
12/16/2003US6665712 System and method for locating an output device
12/16/2003US6665612 Navigation processing for a satellite positioning system receiver
12/16/2003US6665540 Method and system for locating a mobile terminal in a cellular radio network
12/16/2003US6665539 Position location with low tolerance oscillator
12/16/2003US6664923 Position and velocity Kalman filter for use with global navigation satelite system receivers