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)
06/2001
06/28/2001US20010005811 GPS receiver, position-detecting system and positioning method
06/28/2001US20010005680 Position location with low tolerance oscillator
06/28/2001US20010005178 Method and apparatus for geographic-based communication service
06/28/2001DE19960183A1 Stolen vehicle location system in which a vehicle constantly transmits an encoded signal to a central location, and in which the vehicle user has a portable decoding unit, which enables him to decode the transmitted signal
06/28/2001DE10054764A1 Mobile radio hand set location determination for the cellular infrastructure, involves detecting location of mobile radio hand set in response to GPS ephemeris data, clock and differential correction data and updated ephemeris data
06/27/2001EP1110099A1 Position location with a low tolerance oscillator
06/27/2001EP1110098A2 Split c/a code receiver
06/26/2001US6252863 Multipath compensation for pseudorange signals
06/26/2001US6252546 Method and apparatus for processing multipath reflection effects in timing systems
06/26/2001US6252545 Enhancement of signal-detection capability of GPS systems
06/26/2001US6252535 Method and apparatus for acquiring wide-band pseudorandom noise encoded waveforms
06/26/2001US6252525 Anti-collision system
06/21/2001WO2001044829A2 Methods and systems for monitoring multiple channels in a very high frequency omni-directional range receiver
06/21/2001US20010004601 Location and tracking system
06/21/2001US20010004381 Method of synchronizing a receiver, and a receiver
06/21/2001US20010004380 Method for synchronizing a receiver, a positioning system, a receiver and an electronic device
06/21/2001DE19956909A1 Device for remote position monitoring determines position in earth-related coordinate system from signals from satellites of known position, stores and transmits position data
06/21/2001CA2393994A1 Methods and systems for monitoring multiple channels in a very high frequency omni-directional range receiver
06/20/2001EP1109033A1 Gps receiver, position capture system and position determination
06/20/2001EP1108223A1 Method and apparatus for acquiring satellite positioning system signals
06/20/2001EP1108222A1 System and method for power saving in a wireless telephone with a gps receiver
06/20/2001CN1300370A System and method for determining the position of a wireless CDMA transceiver
06/20/2001CN1299976A Positioning method of global positioning system and receiving apparatus of global positioning system
06/19/2001US6249750 Phase detector
06/19/2001US6249680 Radio transmitter location finding in CDMA wireless communication systems
06/19/2001US6249542 Multipath processing for GPS receivers
06/19/2001US6249539 System and method for narrowing the range of frequency uncertainty of a doppler shifted signal
06/19/2001US6249253 Mobile radiotelephone determination using time of arrival of GPS and pilot signals
06/19/2001US6249252 Wireless location using multiple location estimators
06/19/2001US6249246 Location sensor having a satellite receiver for position determination
06/14/2001WO2001042811A1 A receiver for a satellite based position location system
06/14/2001WO2001042810A1 A receiver for a satellite based position location system
06/14/2001WO2001042809A2 Gps athletic performance monitor methods and apparatus thereof
06/14/2001WO2001041879A1 Gps based exercise and training monitoring device
06/13/2001EP1107470A2 Method for synchronizing a receiver in a positioning system
06/13/2001EP1107018A2 Method for synchronizing a receiver
06/13/2001EP1105745A1 Method and system for aiding gps receivers via a cellular or pcs network
06/13/2001CN1299468A Method and apparatus for characterizing multipath interference in circularly polarized signals
06/13/2001CN1299195A Method for synchronous with a receiver and said receiver
06/12/2001US6246960 Enhanced integrated positioning method and system thereof for vehicle
06/12/2001US6246959 Positioning apparatus and positioning information receiving method/apparatus, capable of minimizing shift between reception timing and transmission timing of positioning information
06/12/2001US6246376 Wireless location and direction indicator for multiple devices
06/12/2001US6246363 Method and system for incorporating two-way ranging navigation as a calibration reference for GPS
06/07/2001WO2001040825A1 Method of gps navigation and receiver
06/07/2001WO2001040821A1 Method and apparatus for code phase correlation
06/07/2001WO2001039698A1 Multipath and tracking error reduction method for spread-spectrum receivers
06/06/2001EP0866983B1 Mobile position determination
06/05/2001US6243409 Global navigation satellite system receiver with blanked-PRN code correlation
05/2001
05/31/2001US20010002458 GPS receiver with cross-track hold
05/31/2001US20010002203 Spread spectrum receiver with multi-path correction
05/30/2001EP1103156A1 Improvements in downlink observed time difference measurements
05/30/2001EP1103001A1 Geolocation of mobile devices
05/30/2001CN1297155A Timing correction method
05/29/2001US6240367 Full fusion positioning method for vehicle
05/29/2001US6240366 GPS reception ratio detecting apparatus and portable type distance/speed meter capable of indicating GPS signal receiving condition
05/29/2001US6240276 Compensating for errors in tuning frequency of a global positioning satellite (GPS) receiver
05/29/2001US6239743 Integrated split spectrum positioning system receiver
05/29/2001US6239742 Method and apparatus for satellite positioning system based time measurement
05/29/2001US6239721 Bootstrapped location determination
05/29/2001US6238077 Apparatus for projecting electromagnetic radiation with a tailored intensity distribution
05/24/2001US20010001763 Method for transmitting/receiving portions of an audio signal based on a priority of each portion
05/23/2001EP1102415A2 Tracking loop realisation with adaptive filters
05/23/2001EP1102084A2 Method to determine the orientation of the azimuth direction of a navigation apparatus
05/23/2001EP1102083A1 Satellite positioning system receiver operating in presence of parasitic radio waves
05/23/2001CN1296367A Method and device for aiding GPS protocol
05/22/2001US6236937 GPS receiver with cross-track hold
05/22/2001US6236936 Maintaining a desired separation or distribution in a moving cluster of machines using a time multiplexed global positioning system
05/22/2001US6236832 Music-related information transmitted over mobile telephone network to a requesting user
05/22/2001US6236673 Receiver for receiving signals of a statellite nagivation system
05/22/2001US6236365 Location of a mobile station using a plurality of commercial wireless infrastructures
05/22/2001US6236360 Golf course yardage and information system
05/22/2001US6236355 Fast recovery of lock point information for GPS RTK receiver
05/22/2001US6236354 Reducing satellite signal interference in a global positioning system receiver
05/19/2001CA2325775A1 Receiver for satellite positioning system in the presence of parasite radio wave paths
05/19/2001CA2290187A1 Hydrant monument
05/17/2001WO2001035525A1 Sequential-acquisition, multi-band, multi-channel, matched filter
05/17/2001WO2001035054A1 Methods and appparatus for measuring orientation and distance
05/17/2001WO2001035053A1 Image metrology methods and apparatus
05/17/2001WO2001035052A1 Robust landmarks for machine vision and methods for detecting same
05/17/2001US20010001239 Method and apparatus for geographic-based communications service
05/16/2001EP1099955A2 A method of timing calibration
05/16/2001EP1099120A1 Method and apparatus for angle measurement or to define angular location of an object
05/16/2001EP0914618B1 Integrity monitoring method and apparatus for gps and dgps receivers
05/16/2001CN1295775A Method of emasuring time difference, and radio system
05/15/2001US6232918 Antenna array calibration in wireless communication systems
05/12/2001CA2325231A1 Method and apparatus for assisted gps protocol
05/12/2001CA2324798A1 A method of timing calibration
05/10/2001WO2001033302A2 Method and apparatus for position determination using reduced number of gps satellites and synchronized and unsynchronized base stations
05/10/2001WO2001033231A2 Method and apparatus for electromagnetic position and orientation tracking with distortion compensation
05/09/2001EP1097391A1 Gps signal fault isolation monitor
05/09/2001EP1097390A1 Gps satellite drift monitor
05/08/2001US6230018 Devices and processing in a mobile radio communication network having calibration terminals
05/08/2001US6229478 Near-real time DGPS network and server system
05/03/2001WO2001031295A1 Method for detecting the position of an object
05/03/2001US20010000660 Method and apparatus for acquiring wide-band pseudorandom noise encoded waveforms
05/02/2001EP1095292A1 Apparatus and methods for position computation based on broadcast initialization data
05/01/2001US6225945 GPS receiver using coarse orbital parameters for achieving a fast time to first fix
04/2001
04/24/2001US6222484 Personal emergency location system
04/24/2001US6222483 GPS location for mobile phones using the internet
04/19/2001WO2001027650A1 System for processing directional radio signals