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)
11/2004
11/03/2004CN1543715A Data message bit synchronization and local time correction methods and architectures
11/03/2004CN1543714A Spread spectrum receiver architectures and methods therefor
11/03/2004CN1543115A A method for preventing network address translation (NAT) device from being attacked by network user
11/03/2004CN1543099A Test apparatus and control method thereof for use with location based service system capable of optimizing location based service by adjusting maximum antenna range
11/02/2004US6813561 Relative positioning for vehicles using GPS enhanced with bluetooth range finding
11/02/2004US6813560 Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris
11/02/2004US6813500 Cellular telephone using pseudolites for determining location
11/02/2004US6812887 Method and apparatus for saving power in a global positioning system receiver
11/02/2004CA2176878C Protocol and mechanism for mutter mode communication for stationary master tracking unit
10/2004
10/28/2004WO2004093339A1 Apparatus for and method of making pulse-shape measurements
10/28/2004WO2004093337A1 Motion detecting wireless receiver and signal monitoring method therefor
10/28/2004WO2004092762A1 Multiple pass location processor
10/28/2004WO2004092761A1 Method for the acquisition of a radio-navigation signal by satellite
10/28/2004WO2004079928A3 Pde autonomous accuracy certification testing method and system
10/28/2004WO2004065980B1 Using multiple detection algorithms in positioning signal processing
10/28/2004WO2004051512A3 Generating entries for a database supporting a positioning of a mobile terminal
10/28/2004US20040213334 Real-time software receiver
10/28/2004US20040212531 Positioning system
10/28/2004US20040212530 Method for iterative determination of distance between receiving station and transmitting station and also calculating unit and computer software product
10/28/2004DE10316290A1 Calculation of the distance between a receiving station, e.g. a GPS receiver, and a transmitting station, by use of an iterative method in which an initial calculation of the number of whole signal codes is carried out only once
10/28/2004CA2522463A1 Apparatus for and method of making pulse-shape measurements
10/28/2004CA2522059A1 Method for the acquisition of a radio-navigation signal by satellite
10/27/2004EP1470653A1 Multiple initial search method for cdma and gps system
10/26/2004US6810072 System for acquiring spread spectrum signals
10/26/2004US6809684 Signal deformation monitor
10/26/2004US6809683 Portable tester for LAAS ground facility
10/21/2004WO2004091210A1 Moving picture processing device, information processing device, and program thereof
10/21/2004WO2004091202A1 Moving picture processing device, information processing device, and program thereof
10/21/2004WO2004091201A1 Moving picture processing device, information processing device, and program thereof
10/21/2004WO2004091120A1 Method for operating an active gps receiver using a bts position remote input
10/21/2004WO2004091090A1 A radio beacon
10/21/2004WO2004029807A3 Methods and apparatus for evaluating operational integrity of a data processing system using moment bounding
10/21/2004WO2003045084A3 Provision of location information
10/21/2004US20040210389 Satellite navigation system using multiple antennas
10/21/2004US20040209626 Method and device for detecting an interference condition
10/21/2004US20040209625 Mobile position fixing
10/21/2004US20040208236 Apparatus for and method of making pulse-shape measurements
10/21/2004US20040208137 System and method for selecting a communication band
10/21/2004US20040207556 Position location using broadcast television signals and mobile telephone signals
10/21/2004CA2520189A1 Method for operating an active gps receiver using a bts position remote input
10/20/2004EP1469287A2 Device for map information processing and position display
10/20/2004EP1468305A1 Provision of location information
10/20/2004CN2650063Y Rapid positioning timing theodolite
10/19/2004US6807485 Integrated position and direction system with radio communication for updating data
10/19/2004US6807127 Navigational device for an underwater diver
10/19/2004US6806827 Using FFT engines to process decorrelated GPS signals to establish frequencies of received signals
10/19/2004US6805467 Emergency laser array signal light
10/14/2004WO2004088913A1 Phase comparison circuit and clock recovery circuit
10/14/2004WO2004088792A1 Vehicle rearview assembly incorporating a tri-band antenna module
10/14/2004WO2004088532A1 Method for determining the correlation between received samples and available replica samples
10/14/2004WO2004088531A1 Method for determining the correlation between received samples and available replica samples
10/14/2004US20040203915 Method and apparatus for locating a mobile receiver having a position cache
10/14/2004US20040203913 Position calculation method and a mobile terminal and a server therefor
10/14/2004US20040203876 Method and apparatus for determining location of a remote unit using GPS
10/14/2004US20040203875 System and method for aiding a location determination in a positioning system
10/14/2004US20040203869 WLAN device positioning
10/14/2004US20040203853 Position determination for a wireless terminal in a hybrid position determination system
10/14/2004US20040203566 Beacon for locating and tracking wireless terminals
10/14/2004US20040203461 Method and system for providing GPS interference information from a civilian mobile vehicle communications system
10/14/2004US20040203391 Contact-free data communications system, data communications device, contact-free identification tag, program for controlling the contact-free identification tag, and program for controlling the data communications device
10/14/2004US20040202363 Method and apparatus for three-dimensional tracking of infra-red beacons
10/14/2004US20040202235 Spread spectrum receiver with multi-bit correlator
10/14/2004US20040201521 Method for delivering secondary (non-location) data to a GPS receiver
10/14/2004US20040201519 Positioning system, and method for offering positioning information
10/13/2004EP1467575A1 Localization system
10/13/2004EP1467221A2 GPS receiver with signal memories and parallel correlators
10/13/2004EP1466188A1 System and method for subband beamforming using adaptive weight normalization
10/13/2004EP1388241A4 Method and apparatus for computing signal correlation
10/13/2004EP0910903B1 Acquisition in a gps receiver
10/13/2004CN1537395A Improved method for estimating TDOA and FDOA in wireless location system
10/13/2004CN1537361A System and method for GPS enabled antenna
10/13/2004CN1537236A Apparatus, method and system of transferring correction information
10/13/2004CN1537235A Improvements in radio positioning systems
10/12/2004US6804494 System and method for the detection and compensation of radio signal time of arrival errors
10/12/2004US6804290 Method of acquiring signal code phases and geographic positioning receiver
10/07/2004WO2004086081A2 A method and device to improve mobile positioning by using a second frequency source
10/07/2004WO2004086080A1 Methods, systems and computer program products for providing location determination information to an assisted location service
10/07/2004WO2004086078A1 A device and method for determining an epoch using a de-spread spread-spectrum signal
10/07/2004WO2004086077A1 Method and apparatus for performing signal correlation
10/07/2004WO2004085211A2 Vehicle proximity alarm system and method
10/07/2004WO2004068160A3 Portable detachable self-contained tracking unit for two-way satellite communication with a central server
10/07/2004WO2004062240A3 Method and mobile station for determining a code phase
10/07/2004WO2004031794A3 Method and apparatus for determining location of a remote unit using gps
10/07/2004US20040199833 Measurement fault detection
10/07/2004US20040198449 Systems and methods for transmitting global positioning system information
10/07/2004US20040198393 Radio transceiver and method of controlling direction of radio-wave emission
10/07/2004US20040198387 Position detection system and portable terminal
10/07/2004US20040198384 Mobile communications device integrating positioning function and method for displaying positioning information in real time thereof
10/07/2004US20040198378 Method and system for amending wireless assisted global positioning system networks
10/07/2004US20040196895 Determining the correlation between received samples and available replica samples
10/07/2004US20040196894 Determining the correlation between received samples and available replica samples
10/07/2004US20040196208 Antenna system and RF signal interference abatement method
10/07/2004US20040196186 Radio positioning systems
10/07/2004US20040196184 Method and apparatus for determining the position and orientation of an object using a doppler shift of electromagnetic signals
10/07/2004US20040196183 Cross-correlation mitigation method and apparatus for use in a global positioning system receiver
10/07/2004US20040196179 Vehicle rearview assembly incorporating a tri-band antenna module
10/07/2004CA2519625A1 Vehicle proximity alarm system and method
10/06/2004EP1463954A1 Device and method for the suppression of pulsed wireless signals
10/06/2004EP1463953A1 Method for the ground-based monitoring of ewf-type anomalies in a positioning satellite signal
10/06/2004CN1535543A Monitoring of call information in wirelsss location system