Patents
Sitemap › G01 - Measuring; Testing › G01S - Radio direction-finding; Radio navigation; Determining distance or velocity by use of radio waves; Locating or presence-detecting by use of the reflection or reradiation of radio waves; Analogous arrangements using other waves › 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
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)
12/2002
12/04/2002CN1383493A Method and system for using altitude information in satellite positioning system
12/04/2002CN1382996A Gps接收装置 Gps receiver
12/03/2002US6490524 Post-processing of NMEA data
12/03/2002US6490454 Downlink observed time difference measurements
12/03/2002US6489923 Position location method and apparatus for a mobile telecommunications system
11/2002
11/28/2002WO2002096054A1 Method and apparatus for computing signal correlation
11/28/2002WO2002095441A1 Equipment for assistance in locating a mobile object such as a stray or missing animal
11/28/2002WO2002052296A3 Method and apparatus for a positioning system and augmentation of gps positioning
11/28/2002US20020177952 Gps method and apparatus, navigation system, program storage device and computer data signal embodied in carrier wave
11/28/2002US20020176603 Automatic pan/tilt pointing device, luminaire follow-spot, and 6DOF 3D position/orientation calculation information
11/28/2002US20020175860 Method of measuring time difference, and radio system
11/28/2002US20020175857 Method and apparatus for performing signal correlation
11/28/2002US20020175856 Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris
11/27/2002EP1260830A2 A GPS receiver and method for processing GPS signals
11/27/2002EP1260828A2 System for tracking an object
11/27/2002EP1108222B1 System and method for power saving in a wireless telephone with a gps receiver
11/27/2002EP1097391B1 Gps signal fault isolation monitor
11/27/2002CN1382324A Systems and methods for maintaining operation of receiver co-located with transmitter and susceptable to interference therefrom by desensitization of receiver
11/26/2002US6487499 Method for adjusting a pseudo-range model
11/24/2002CA2348212A1 Automatic pan/tilt pointing device, luminaire follow-spot, and 6dof 3d position/orientation calculation information gathering system
11/21/2002WO2002093947A1 Wireless navigational system, device and method
11/21/2002WO2002093772A2 Processing a spread spectrum signal
11/21/2002WO2002093190A2 Method of improving satellite reacquisition performance for integrated gp/1g navigational systems
11/21/2002WO2002063328A8 Low cost system and method for making dual band gps measurements
11/21/2002WO2002059634A3 Apparatus for processing of gps signals
11/21/2002US20020173937 Method of authenticating beacon
11/21/2002US20020173909 Server-assisted position determination in a radio network
11/21/2002US20020172306 Method and apparatus for performing signal correlation using historical correlation data
11/21/2002US20020172267 Method and apparatus for computing signal correlation at multiple resolutions
11/21/2002US20020172266 Method and apparatus for computing signal correlation
11/21/2002US20020172223 Calibration for wireless location system
11/21/2002US20020171582 GPS receiver and GPS receiver system
11/21/2002US20020171581 Method and apparatus for providing location-based information via a computer network
11/21/2002US20020171549 Reflection multiplier radio wave marker, marker sensor, marker system and traffic system
11/20/2002EP1258850A2 Reflection multiplier radio wave marker system and traffic system
11/20/2002EP1257842A1 A receiver for a satellite based position location system
11/20/2002EP1257841A2 Locating a mobile unit using coherently processed satellite signals combined with signals from stationary beacons
11/20/2002CN1380985A Method of despreading GPS spread spectrum signals
11/20/2002CN1380984A Gps接收机 Gps Receiver
11/19/2002US6484098 GPS method and apparatus, navigation system, program storage device and computer data signal embodied in carrier wave
11/19/2002US6484097 Wide area inverse differential GPS
11/19/2002US6484031 Locating method and arrangement
11/19/2002US6483867 Tracking loop realization with adaptive filters
11/19/2002US6483460 Baseline selection method for use in a wireless location system
11/19/2002US6483457 Global positioning system and global positioning apparatus
11/19/2002US6483456 GPS receiver
11/14/2002WO2002091595A2 Enhanced transponder landing system using data link
11/14/2002WO2002091014A2 A gps based terrain referenced navigation system
11/14/2002WO2002091012A2 Altitude estimation system and method
11/14/2002US20020169578 Method and device for obtaining attitude under interference by a GPS receiver equipped with an array antenna
11/14/2002US20020169550 Method of improving satellite reacquisition preformance for integrated GP/IG navigational systems
11/14/2002US20020169545 Positioning apparatus and navigation apparatus, and positioning method and navigation method
11/14/2002US20020168988 Time acquisition in a wireless position determination system
11/14/2002US20020168985 GPS assistance messages in cellular communications networks and methods therefor
11/14/2002US20020167995 Radiofrequency signal receiver with means for improving the reception dynamic of said signals
11/14/2002US20020167441 Infrastructure-aiding for satellite navigation receiver and method
11/14/2002US20020167417 Location system using retransmission of identifying information
11/14/2002DE10220366A1 Lokalisierungssystem mit einer Rückübertragung der Identifikationsinformation Localization system with a retransmission of the identification information
11/13/2002EP1256814A2 GPS method and apparatus, navigation system, and computer program
11/13/2002EP1256813A2 Apparatus and method for navigation and positioning
11/13/2002EP1256014A1 Hierarchical delay lock loop code tracking system with multipath correction
11/13/2002EP1256013A1 Device and method for detecting flying objects
11/13/2002EP0830616B1 Mitigation of multipath effects in global positioning system receivers
11/12/2002US6480787 GPS receiving system
11/12/2002US6480557 Portable GPS-receiver for a personal safety system
11/12/2002US6480150 Autonomous hardwired tracking loop coprocessor for GPS and WAAS receiver
11/12/2002US6480145 GPS receiver and GPS position measurement method
11/12/2002CA2259766C Positioning apparatus used in a cellular communication system and capable of carrying out a positioning with a high accuracy in urban area
11/07/2002WO2002089507A1 System and method for providing position-based information to a user of a wireless device
11/07/2002WO2002088769A1 Power managing apparatus for receiving of global positioning system
11/07/2002WO2002088768A2 A spread-spectrum receiving method and associated system
11/07/2002WO2002088767A2 Mobile communication apparatus
11/07/2002WO2002071095A3 Method and apparatus providing improved position estimate based on an initial coarse position estimate
11/07/2002WO2002058425A3 Radio communications system and method for determining the position of at least one user device
11/07/2002US20020164998 System and method for providing position-based information to a user of a wireless device
11/07/2002US20020164994 Modular transponder
11/07/2002US20020163901 Location data validation by static entities receiving location data items by short-range communication
11/06/2002EP1255123A1 RF signal receiver with means to improve the dynamics of the reception of the signals
11/06/2002EP1255121A1 A method for reducing multipath interferences errors in a navigation receiver
11/06/2002EP1254378A1 Methods, mobile stations and systems for acquiring global positioning system timing information
11/06/2002EP1179267A4 System and method for communicating between a special number call answering agency and a mobile action asset
11/05/2002US6476762 Method for performing positioning and an electronic device
11/05/2002US6476581 Methods for making apparel and sensor covering with energy converting, storing and supplying capabilities and other electrical components integrated therein
11/04/2002CA2384228A1 Radiofrequency signal receiver with means for improving the reception dynamic of said signals
10/2002
10/31/2002WO2002087261A2 Methods and apparatus for high-accuracy position location using search mode ranging techniques
10/31/2002WO2002086534A2 System and method for providing worldwide seamless location coverage
10/31/2002WO2002086442A2 Tracking device
10/31/2002WO2002068985A3 Hybrid system for position determination by a mobile communications terminal
10/31/2002WO2002046786A3 Location-determination method and apparatus
10/31/2002US20020161523 Positioning error range setting apparatus, positioning error range setting method, positioning error range setting processing program embodied on computer-readable medium and navigation apparatus
10/31/2002US20020161522 Low cost system and method for making dual band GPS measurements
10/31/2002US20020159542 Method for determining a boundary of an information element, a system, and an electronic device
10/31/2002US20020158805 Rearview mirror with integrated microwave receiver
10/31/2002US20020158794 Apparatus and method for performing open loop tracking of a signal
10/31/2002DE10119886A1 Position finding system for use in large towns, has Global Positioning System receiver for coarse position determination, and correction transmitters at distance for making measurement more accurate
10/30/2002EP1253439A2 Apparatus and method for determining positioning error range
10/30/2002EP1253438A2 Methods and apparatus for estimating accuracy of range measurement signals
10/30/2002EP1253437A2 Method and apparatus for high-accuracy position location using search mode ranging techniques
10/30/2002EP1252533A2 Multi-frequency pseudolites for carrier-based differential-position determination
10/30/2002EP1252480A1 Image metrology methods and apparatus
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