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US20110140969 Method And System For Hybrid Positioning Using Partial Distance Information  
The present invention provides a method and system for positioning one or more anchor nodes or one or more non-anchor nodes in one or more communication networks. A non-anchor node may be in...
US20110095946 METHOD AND SYSTEM FOR ENHANCING A LOCATION SERVER REFERENCE DATABASE THROUGH ROUND-TRIP TIME (RTT) MEASUREMENTS  
A mobile device in a cellular communication network collects three or more round-trip time (RTT) measurements for a single active cell. The collected RTT measurements are transmitted to a location...
US20130335273 COLLABORATIVE NAVIGATION TECHNIQUES FOR MOBILE DEVICES  
Various methods, apparatuses and/or articles of manufacture are provided which may be implemented to perform and/or otherwise support collaborative navigation between a plurality of mobile devices....
US20110232585 Radial-shape wireless dog fence system and method  
A radial-shaped wireless fence system is provided that contains one or more dogs in a user-defined area without the need for a physical fence or underground wire. The system includes a base unit...
US20130082878 WI-FI POSITION FIX  
A method of forming an estimate of the two-dimensional position of a radio receiver relative to a plurality of radio transmitters each having an associated position estimate and a position...
US20120169543 TRUE OMNI-DIRECTIONAL ANTENNA  
An antenna and a method for using the antenna in a wireless appliance are provided. The antenna includes a conducting surface having a length and a width; a dielectric slit having a slit length...
US20130176175 Apparatus For Arrow Locating And Game Tracking  
A signal-transmitting arrow operable to transmit an encoded RF signal, an arrow locating and game tracking receiver system for use with the signal-transmitting arrow, and a transmitter-nock unit...
US20110074632 WIRELESS POSITIONING METHOD AND APPARATUS  
A wireless positioning method of a receiver is provided. Signals are received from a plurality of transmitters, propagation taps of the plurality of transmitters received from the plurality of...
US20110187600 SYSTEM AND METHOD FOR MEASUREMENT OF DISTANCE TO A TAG BY A MODULATED BACKSCATTER RFID READER  
Distance to a modulated backscatter tag is measured with a RFID reader that measures changes in phase with frequency of modulated backscattered RF signals. Measured distances are linked to a...
US20130069828 LOCATION BASED DETERMINATION TO PERFORM A RANGING PROCEDURE  
Methods and systems are described for using location-based information to determine whether to perform a ranging procedure. A change in location of a device is identified. The identified change in...
US20110074634 WIRELESS POSITIONING METHOD AND APPARATUS  
A wireless positioning method of a receiver is provided. Signals are received from a plurality of transmitters, propagation taps of the plurality of transmitters received from the plurality of...
US20110298664 SYSTEMS AND METHODS FOR USING A SATELLITE POSITIONING SYSTEM TO DETECT MOVED WLAN ACCESS POINTS  
The disclosed subject matter generally relates to hybrid positioning systems and methods and, more specifically, systems and methods of detecting moved WLAN assess points using a wireless local...
US20110298663 SYSTEMS AND METHODS FOR USING A SATELLITE POSITIONING SYSTEM TO DETECT MOVED WLAN ACCESS POINTS  
The disclosed subject matter generally relates to hybrid positioning systems and methods and, more specifically, systems and methods of detecting moved WLAN assess points using a wireless local...
US20140184447 PHASE-BASED RANGING FOR BACKSCATTER RFID TAGS  
A RF tag reader may use spatial averaging to compensate for the limitations of performing multi-frequency continuous-wave ranging (MFCW) in a bandwidth-limited environment. Although MFCW provides...
US20130147667 SYSTEM FOR DETERMINING POSITION IN A WORK SPACE  
A system for determining the dimensional coordinates of a point of interest in a work space, includes a plurality of fixed-position ranging radios, located at known positions in the work space, and...
US20140203971 SYSTEM AND METHOD FOR TRACKING AND LOCATING A PERSON, ANIMAL, OR MACHINE  
A system and method for estimating the position of an object, such as a person, animal, or machine. The system includes first and second inertial measurement units, a first and second originator...
US20130265200 Position Determination Using Local Time Difference  
Described are computer-based methods and apparatuses, including computer program products, for determining a position. In some examples, the method includes determining measured time receipt...
US20110187599 Technique For Effectively Communicating Location Information In A Wireless Communication Service  
In providing a wireless location communication service including a location based service to a user of a mobile device, the mobile device sends information concerning a location of the device...
US20070013584 Methods, systems and devices for determining the location of a mobile device based on simulcast communication signals  
A method for determining a position of a mobile device may include receiving a communication signal at the mobile device simulcast from a plurality of transmitters. One of the plurality of...
US20100283682 CLOCK PHASE RANGING METHODS AND SYSTEMS  
A system and method for estimating the range between two devices performs two or more ranging estimates with subsequent estimates performed using a clock that is offset in phase with respect to a...
US20110102266 WIRELESS PROXIMITY PROBE AND METHOD OF OPERATING SAME  
A proximity probe, for use in determining a distance to a probe target, includes a first antenna configured to wirelessly receive a radio-frequency signal at a first predetermined frequency and a...
US20090055123 DISTANCE BASED ASSOCIATION FOR ULTRA WIDE BAND (UWB) WIRELESS PERSONAL AREA NETWORK (PAN) DEVICES  
Methods and wireless communication device for associating UWB (Ultra Wide Band) WPAN devices through the processing of ranging information. Ranging information represents the distance between a...
US20140062793 METHODS AND DEVICES FOR CHANNEL IDENTIFICATION  
This invention relates to methods and devices for channel identification. The invention is particularly concerned with techniques for non-line of sight channel identification. In embodiments of the...
US20130278465 ESTIMATING CHARACTERISTICS OF OBJECTS IN ENVIRONMENT  
Methods and systems disclosed herein may include receiving signals from a transmitter in a receiver; determine a bias of the transmitter and receiver; generating expected observations, based on the...
US20100321245 MULTIBAND TRANSCEIVER AND POSITIONING SYSTEM USING THE TRANSCEIVER  
The present invention comprising: a first local oscillator for generating a first frequency; a second local oscillator for generating a second frequency; phase-difference setting means for setting...
US20120112959 Method And Apparatus For Establishing Meshed GPS Network  
An apparatus and method for determining real time location of assets by calculating the relative position of a plurality of GPS enabled devices transported together, taking advantage of multiple...
US20090212995 DISTRIBUTED ITERATIVE MULTIMODAL SENSOR FUSION METHOD FOR IMPROVED COLLABORATIVE LOCALIZATION AND NAVIGATION  
A computer implemented method for fusing position and range measurements to determine the position of at least one node of a plurality of distributed nodes is disclosed. The method includes (a)...
US20130069829 METHOD AND DEVICES FOR DETERMINING THE DISTANCE BETWEEN A RADIO BEACON AND AN ONBOARD UNIT  
The invention relates to a method for determining the distance between a radio beacon and a vehicle device passing in front of said radio beacon, in a road toll system. A signal of a frequency...
US20100035546 LOCATING REFERENCE NODES FOR POSITIONING DEVICES IN A WIRELESS NETWORK  
A method for matching an actual device in a wireless network to a corresponding device indicated in a plan (1) of such devices is provided. The method is suitable for initiating the commissioning...
US20120262340 STEP FILTER FOR ESTIMATING DISTANCE IN A TIME-OF-FLIGHT RANGING SYSTEM  
A ranging system includes a time of flight subsystem including circuitry incorporated in a mobile node and a base station for generating a TOF signal between the mobile node and the base station,...
US20120212374 METHOD AND APPARATUS FOR RF-BASED RANGING WITH MULTIPLE ANTENNAS  
An apparatus having a first antenna; a second antenna; and a controller coupled to the first and second antennas, wherein the controller is configured to determine a first ranging measurement...
US20090267830 METHOD FOR DETERMINING THE DISTANCE BETWEEN POSITIONING DEVICES AND GROUND MONITORING SYSTEM USING THE METHOD  
A method for determining a distance between positioning devices includes following steps. A ground monitoring system receiving positions of a first positioning device and a second positioning...
US20060071854 Ranging and positioning method and apparatus  
The method and apparatus are for use in a building (2) having walls (8) and corridors (10) extending longitudinally (4) and laterally (6). Base stations (20, 22) have antennae orientated with a...
US20090213003 POSITIONING DEVICE AND METHOD FOR MEASURING THE DISTANCE BETWEEN MULTIPLE POSITIONING DEVICES  
A positioning device includes an antenna, a receiving module, a processing module and an output module. The receiving module receives positioning signals transmitted from positioning satellites and...
US20120032855 HIGH-RESOLUTION RANGING AND LOCATION FINDING USING MULTICARRIER SIGNALS  
The invention relates to methods and systems for accurate ranging and geo-locationing using coherent multicarrier (CM) signals and based on a high-resolution estimation of a receiver timing offset...
US20130207844 HYBRID DIRECTION IDENTIFYING APPARATUS AND METHOD  
A hybrid direction apparatus and method that rapidly and accurately detects a direction of a radio signal source based on a direction detecting scheme by comparing an amplitude or signal strength,...
US20080129599 Systems and methods for locating targets using digital elevation model survey points  
A method for determining the position of a target using digital terrain elevation data survey points and a corresponding target locating system are described. The method includes selecting at least...
US20100283683 POSITION INFORMATION DETECTION SYSTEM AND POSITION INFORMATION DETECTION METHOD  
An object of the present invention is to achieve a position information detection system with high precision when an obstruction and a reflective object exist. A position information detection...
US20110001668 REBROADCASTING METHOD AND SYSTEM FOR NAVIGATION SIGNALS  
A “synchrolite” or rebroadcasting device allows GPS or GNSS navigation signals received at one or several locations to be processed at a separate location. The signals received by the syn...
US20110248887 GEOLOCATION LEVERAGING SPOT BEAM OVERLAP  
A method and system are disclosed for providing an estimate of a location of a user receiver device. The method and system involve emitting from at least one vehicle at least one spot beam on...
US20110148714 Near Field Electromagnetic Location System and Method  
A system and method for determining a position of a locus comprising a locator device for disposition at the locus; the locator device configured for receiving an electromagnetic signal from a...
US20140070997 Navigation Using Range Measurements to OFDM Transmitters  
A signal receiver receives a time-domain signal that includes a plurality of pilot tones at a plurality of corresponding frequencies. The time-domain signal is transmitted from a transmit location....
US20110140970 BASE STATION DEVICE AND DISTANCE MEASURING METHOD  
Provided are a distance measuring device and a distance measuring method which can easily distinguish a reflected signal from a desired tag from an unnecessary wave so as to improve the distance...
US20110260923 SYSTEM AND METHOD FOR POSITIONING USING SIGNAL TRANSMIT POWER AND SIGNAL RECEIVE PACKET ERROR RATIO  
A system and method for positioning using signal transmit power, SNR of the signal receiving unit, signal receive PER or PLR, and distance relationship between the signal source and receiving unit....
US20100245174 POSITIONING DEVICE AND PROGRAM RECORDING STORAGE MEDIUM FOR POSITIONING  
A positioning device includes: a device body; a direction change detecting section that detects whether a traveling direction of the device body has been changed based on a detection of an azimuth...
US20100149031 SYSTEM AND METHOD FOR DETERMINING FORGED RADIO FREQUENCY MEASUREMENTS  
A system and method for determining whether a wireless device has transmitted one or more forged radio frequency (“RF”) measurements. A first set of signals from a plurality of RF sources may be ...
US20140009340 ASYMMETRIC RANGING PROCESSING  
Processing associated with ranging operations is shifted from a first apparatus to a second apparatus. For example, upon sampling a received ranging signal (e.g., a pulse) from the second...
US20120139791 Concept for Determining an Estimated Value of a Location of a Receiving Element  
Apparatus for determining an estimated value for a location of a receiving element within a reference system which may receive signals of a signal source movable to different measuring positions,...
Matches 1 - 48 out of 48