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)
12/2001
12/05/2001CN1325492A Method and apparatus for acquiring satellite positioning system signals
12/04/2001US6327535 Location beaconing methods and systems
12/04/2001US6327473 Method and apparatus for increasing the sensitivity of a global positioning satellite receiver
12/04/2001US6327298 Post-correlation temporal nulling
12/04/2001US6326918 Method and apparatus for geographic-based communications service
11/2001
11/29/2001WO2001090772A1 Gps receiver
11/29/2001WO2001090771A1 Satellite/radio based tracing system
11/29/2001US20010047243 GPS receiver with cross-track hold
11/29/2001US20010046870 Modified transmission method for improving accuracy for E-911 calls
11/29/2001US20010046256 Strong signal cancellation to enhance processing of weak spread spectrum signal
11/29/2001US20010046133 Direct view lighting system with constructive occlusion
11/29/2001DE10026519A1 Mobile telephone that can be used for locating buried people, has transceiver that has functional assembly with circuit arrangement and direction function for locating people buried in accident
11/28/2001EP1157282A1 Sensor system
11/28/2001CN1323991A Method for quickly catching GPS signal from GPS system
11/27/2001US6324474 Method for establishing coverage area and accuracy of a wide-area differential global positioning system
11/27/2001US6324393 Auto locating emergency rescue transmitter (ALERT)
11/27/2001US6324392 Emergency locator and communicator
11/27/2001US6323805 Data boundary aware base station assisted position location
11/27/2001US6323804 Method and apparatus for GPS time determination
11/27/2001US6323803 System and method for incremental broadcast of GPS navigation data in a cellular network
11/22/2001WO2001089108A1 Method and apparatus for code phase tracking
11/22/2001WO2001089105A1 A method of despreading a spread spectrum signal
11/22/2001WO2001087708A2 Selectable range ring for a cockpit display
11/22/2001WO2001006669A8 Systems and methods for maintaining operation of a receiver co-located with a transmitter and susceptible to interference therefrom by desensitization of the receiver
11/22/2001US20010044309 Internet distributed real-time wireless location database
11/22/2001US20010043644 Method of despreading a spread spectrum signal
11/22/2001US20010043641 System and method for narrowing the range of frequency uncertainty of a doppler shifted signal
11/22/2001US20010043148 System and method for providing geographic-based advertising
11/22/2001CA2407742A1 Selectable range ring for a cockpit display
11/20/2001US6321077 Reception control system for automobile
11/20/2001US6320536 GPS receiver
11/15/2001WO2001086893A2 Data packet communications system with a plurality of antennas
11/15/2001WO2001086318A1 Satellite-based positioning system receiver for weak signal operation
11/15/2001WO2001086316A2 Method and apparatus for compensating local oscillator frequency error
11/15/2001WO2001047171A3 Strong signal cancellation to enhance processing of weak spread spectrum signal
11/15/2001US20010040526 System for processing directional signals
11/15/2001CA2411607A1 Satellite-based positioning system receiver for weak signal operation
11/14/2001CN1322452A Improvements in downlink observed time difference measurements
11/14/2001CN1322300A Method and apparatus for communicate auxiliary and location information between cellular telephone network and global positioning system
11/13/2001US6317688 Method and apparatus for achieving sole means navigation from global navigation satelite systems
11/13/2001US6317604 Centralized database system for a wireless location system
11/13/2001US6317602 Signal processing system for locating a transmitter
11/13/2001US6317081 Internal calibration method for receiver system of a wireless location system
11/13/2001US6317078 Method and device for reception processing of a GPS satellite L2 signal
11/08/2001WO2001084745A1 Method and apparatus for interference reduction
11/08/2001WO2001084176A1 Low signal-to-noise ratio positioning system
11/08/2001WO2001084175A1 Method and system for determining geographical co-ordinates in mobile communications networks
11/08/2001WO2001084174A2 Miniature electronic personal locator beacon
11/08/2001WO2001084080A1 Global positioning system tag system
11/08/2001WO2001039698A8 Multipath and tracking error reduction method for spread-spectrum receivers
11/08/2001US20010039476 Global Positioning System tag system
11/08/2001CA2406285A1 Miniature electronic personal locator beacon
11/07/2001EP1152546A2 System for acquiring spread spectrum signals
11/07/2001EP1152255A2 Fast GPS signal acquisition in GPS systems
11/07/2001EP1152254A2 Combined GPS and CDMA in a mobile transceiver
11/07/2001EP1151495A1 Rearview mirror with integrated microwave receiver
11/07/2001EP1151321A1 Method and apparatus for gps assistance in a communication system
11/06/2001US6314370 Map-based navigation system with overlays
11/06/2001US6314366 Satellite based collision avoidance system
11/06/2001US6314363 Computer human method and system for the control and management of an airport
11/06/2001US6314308 Method and apparatus for providing reserve power in a cellular telephone
11/06/2001US6314281 Method and apparatus for precisely locating a mobile unit
11/06/2001US6313789 Joint tracking of the carrier phases of the signals received from different satellites
11/06/2001US6313787 Method and apparatus for assisted GPS protocol
11/06/2001US6313786 Method and apparatus for measurement processing of satellite positioning system (SPS) signals
11/05/2001CA2308001A1 Ice hockey arrays computer system (ihacs)
11/01/2001WO2001081941A1 Multipath propagation detection and avoidance method and system
11/01/2001WO2001081939A1 Radio frequency beacon
10/2001
10/31/2001EP1149373A1 Fleet position monitoring system
10/31/2001EP1149304A1 Method of gps navigation and receiver
10/31/2001EP1149302A1 Method and apparatus for code phase correlation
10/31/2001CN2457296Y Satellite positioning safe
10/31/2001CN1319961A GPS receiver and portable communication device
10/31/2001CN1319955A Intensification for GPS system signal test
10/30/2001US6311128 Combined navigation and mobile communication satellite architecture
10/30/2001US6311127 Satellite navigation system having redundant signal processing and matched filtering
10/30/2001US6310561 Transmission system and coding communication method for a transmission system
10/25/2001WO2001079878A2 Personal communications device with gps receiver and comon clock source
10/25/2001WO2001079877A2 Signal detector and method employing a coherent accumulation system to correlate non-uniform and disjoint sample segments
10/25/2001US20010034210 Enhanced GPS receiver utilizing wireless infrastructure
10/25/2001US20010033627 Method for performing location determination and an electronic device
10/25/2001CA2305633A1 Outdoor competitor gps-based data logger
10/24/2001EP1148344A1 Positioning of a wireless terminal with satellite positioning signals or base station signals
10/24/2001CN1318752A Acquisition of pilot phase offset delay parameter for radio terminal
10/23/2001US6308077 Apparatus and method for providing synchronization of base-stations in a communication system
10/23/2001US6307504 Method and system for using altitude information in a satellite positioning system
10/23/2001US6307485 Map display unit
10/20/2001CA2338615A1 Obtaining pilot phase offset time delay parameter for a wireless terminal of an integrated wireless-global positioning system
10/18/2001WO2001077705A2 Global positioning system receiver capable of functioning in the presence of interference
10/18/2001WO1999057575A3 Method and system for using altitude information in a satellite positioning system
10/17/2001EP1146349A2 A method for performing location determination and its corresponding receiver
10/17/2001EP1145036A1 Method for improving the wireless location system
10/17/2001EP1145035A2 Method and system for using altitude information in a satellite positioning system
10/17/2001EP1145034A1 Bandwidth synthesis for wireless location system
10/17/2001EP1145032A2 Calibration for wireless location system
10/17/2001EP1145031A1 A method of and system for estimating a time of arrival of a radio signal
10/16/2001USRE37408 Reduction of time to first fix in an SATPS receiver
10/16/2001US6304218 Wireless communication system and method and system for detection of position of radio mobile station
10/16/2001US6304216 Signal detector employing correlation analysis of non-uniform and disjoint sample segments
10/16/2001US6304212 Position data display/control apparatus and methods