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| Number | Title | Issue Date |
| 8188919 | Globally-convergent geo-location algorithm A system and method for estimating a geolocation of a non-cooperative target using any reasonable target location estimate. Collectors may acquire actual signal measurements including a direction of arrival (DOA), a target range, a time difference of arrival (TDOA),... | 05/29/2012 |
| 8188920 | Location measurement acquisition optimization with Monte Carlo simulation The present subject matter discloses a method for estimating dilution of precision (DOP) across a service area. A Monte Carlo simulation is used to determine the DOP across a service area. Random points are selected across a service area and as well as the radio tra... | 05/29/2012 |
| 8179320 | Positioning method and devices in a mobile radio communications system The present invention relates to a method and devices for determining the position of a user equipment in a mobile radio communications system. According to the invention, the position is determined via a distortion in a radio signal transmitted to or from the user ... | 05/15/2012 |
| 8164522 | Localization method and system thereof A positioning method for a sensor node is provided, and the method includes steps of: providing a first antenna having a first omnidirectional radiation pattern on a first plane; rotating the first antenna about an axis substantially parallel to the first plane; tra... | 04/24/2012 |
| 8149168 | Position determination using wireless local area network signals and television signals Apparatus having corresponding methods and computer-readable media comprise a first receiver to receive a wireless television signal; a first measurement unit to generate a measurement of the wireless television signal; wherein a position of the apparatus is determi... | 04/03/2012 |
| 8138975 | Interference detection, characterization and location in a wireless communications or broadcast system A Wide Area Sensor Network (WASN) is disclosed that utilizes wideband software defined radios (SDRs) to monitor RF energy over a wide frequency range, detect when critical frequencies are being jammed or otherwise interfered with, and locate the source of the interf... | 03/20/2012 |
| 8089406 | Locationing of communication devices Techniques are disclosed for detecting, identifying, and/or geolocating RF communications devices, such as FRS radios, high-power cordless phones, cellular phones, and other wireless communications receiver devices. The techniques exploit a vulnerability present in ... | 01/03/2012 |
| 8040275 | Method and apparatus for geographic positioning Aspects of the disclosure provide methods for positioning transmitting stations, such as cell towers. Further, aspects of the disclosure provide a database for storing information of the transmitting stations. In addition, aspects of the disclosure provide methods f... | 10/18/2011 |
| 7999729 | Methods and systems for location determination via multi-mode operation Provided is a method for facilitating location determination. The method includes granting a subscriber access to a location determination network via a first device and determining location of a second device via the network, the second device being configurable fo... | 08/16/2011 |
| 7978139 | Direction finding and geolocation of wireless devices Techniques are disclosed that allow for the detection, identification, direction finding, and geolocation of wireless emitters in a given multipath environment. For example, the techniques can be used to detect and identify a line of bearing (LOB) to an IEEE 802.11 ... | 07/12/2011 |
| 7978138 | Direction finding of wireless devices Techniques are disclosed that allow for the detection, identification, and direction finding of wireless emitters in a given multipath environment. For example, the techniques can be used to detect and identify a line of bearing (LOB) to an IEEE 802.11 emitter in a ... | 07/12/2011 |
| 7956807 | Cognitive positioning system This invention provides arbitrary positioning accuracy for cognitive radio communications in both indoor and outdoor environments adaptively. It enables the user or wireless device itself to adjust positioning accuracy adaptively. Hence, this invention can be used f... | 06/07/2011 |
| 7940216 | Method and system for mobile network aided positioning A method for fixing a position of a user apparatus includes the step of starting a fixing session and, within the fixing session, determining a size of a snapshot of a signal of a positioning system depending on the receiving conditions of the signal at the user app... | 05/10/2011 |
| 7916074 | System and method for positioning in configured environments The present invention relates to a system and method for providing location determination in a configured environment in which Global Navigation Satellite System Signals may not be available. In this regard, local beacon systems generate spread spectrum CDMA signals... | 03/29/2011 |
| 7889133 | Multilateration enhancements for noise and operations management Multilateration techniques are used to provide accurate aircraft tracking data for aircraft on the ground and in the vicinity of an airport. From this data, aircraft noise and operations management may be enhanced. Aircraft noise may be calculated virtually using tr... | 02/15/2011 |
| 7876265 | Methods and systems for providing enhanced position location in wireless communications Embodiments disclosed herein relate to methods and systems for providing improved position-location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an embodiment, an access point may replace information (e.g.,... | 01/25/2011 |
| 7859462 | Locating a roving position receiver in a location network The system comprises a positioning-unit device (PUD) that receives, from other PUDs and other signal sources, one or more positioning signals, which each have carrier, code and data componcuts. In response to the received positioning signals and using their known lo... | 12/28/2010 |
| 7688264 | Method and apparatus for passive single platform geo-location The present disclosure provides an RTD that is released from a single primary platform to collect signals from a target emitter and relay data back to a single primary platform, enabling the precise geo-location of the target emitter to be determined in a minimal am... | 03/30/2010 |
| 7667647 | Extension of aircraft tracking and positive identification from movement areas into non-movement areas At most airports, responsibility of air traffic control starts and stops at the entrance or exit to the runway movement areas, which are taxiways and runways. In the non-movement areas, such as hangers, ramps, and aprons, aircraft movements and separation are no lon... | 02/23/2010 |
| 7652627 | System for providing GPS information indoors and method of acquiring indoor GPS information by mobile device A system for providing position information by using a wireless personal area network (WPAN), and a method of acquiring the position information of a mobile device thereof where the system includes: a first node including referenced position information; and a plura... | 01/26/2010 |
| 7595754 | Methods, systems and apparatus for integrated wireless device location determination Methods, devices, and systems are presented for integrated wireless device location determination. A method for determining location on a wireless device includes receiving a request for wireless device location and receiving a plurality of wireless network messages... | 09/29/2009 |
| 7579989 | Method and system for emitter localisation Process and system for the location of emitters in the radar frequency range on the basis of cross position-finding by at least two flying platforms with, in each case, at least one passive HF sensor for ascertaining the geometrical and electronic properties of the ... | 08/25/2009 |
| 7525484 | Gateway and hybrid solutions for wireless location A location system is disclosed for commercial wireless telecommunication infrastructures. The system is an end-to-end solution having one or more location centers for outputting requested locations of commercially available handsets or mobile stations (MS) based on,... | 04/28/2009 |
| 7495613 | System and method for position determination by impulse radio A system and a method for position determination by impulse radio using a first transceiver having a first clock providing a first reference signal and a second transceiver placed spaced from the first transceiver. The system determines the position of the second tr... | 02/24/2009 |
| 7495612 | Method and apparatus to improve ADS-B security Security of ADS-B transmissions is improved in a first embodiment to detect position spoofing. The annunciated position source may then be compared with the derived source and a determination is made regarding the difference between the results. Any position differe... | 02/24/2009 |
| 7486233 | Method and system of positioning The present invention relates to cellular mobile radio systems, particularly to systems of more than one co-sited cell/sector. A method and apparatus for high accuracy enhanced positioning not requiring more sites than one to be involved in positioning is disclosed.... | 02/03/2009 |
| 7471242 | Method and apparatus for installing and/or determining the position of a receiver of a tracking system The present invention pertains to the installation and positioning of the receivers of a wireless tracking system. In such a system, a wireless beaconing device transmits a signal that can be detected by a plurality of wireless receivers positioned at various known ... | 12/30/2008 |
| 7466266 | Psuedo television transmitters for position location An apparatus having corresponding methods comprises a signal generator to generate an radio-frequency (RF) signal comprising a ranging signal comprising a component of a television signal; a wireless transmitter to wirelessly transmit the RF signal; and a self-check... | 12/16/2008 |
| 7446706 | Method and apparatus for processing navigation data in position determination Methods and apparatuses for the processing of false alarms in position determination. At least one embodiment of the present invention estimates and uses measurement false alarm probabilities in the position determination process. In one embodiment, the estimated me... | 11/04/2008 |
| 7433682 | Method and system for providing location based information to a mobile station A system and methods for providing location based services to a mobile station in a cellular wireless system. The system includes components that interact with position determining equipment to locate the mobile station within a region that is defined by a service p... | 10/07/2008 |
| 7423590 | Method and apparatus for improving ADS-B security Security of ADS-B transmissions is improved in a first embodiment to detect position spoofing. The annunciated position source may then be compared with the derived source and a determination is made regarding the difference between the results. Any position differe... | 09/09/2008 |
| 7411512 | Tracking the geographic location of an animal Systems and techniques for tracking the geographic location. In one aspect, a method includes receiving timed magnetic field information descriptive of a magnetic field to which a magnetometer was subject, the magnetic field information having been collected while t... | 08/12/2008 |
| 7408509 | Direction finding method and system using probabilistic mapping A Direction Finding Method and System Using Probabilistic Mapping is disclosed. Also disclosed is a preferred system that employs a technique for taking in data sets (lines of bearing) from DF receivers and characterizing those signals with their respective probabil... | 08/05/2008 |
| 7409287 | System and method for networking a plurality of nodes A system and method for networking a plurality of nodes is disclosed. A network of data devices having data representations of connectivity, network node position, and/or position topologies is also disclosed, wherein the network may be self-configuring and the netw... | 08/05/2008 |
| 7403784 | Method and apparatus for positioning a set of terminals in an indoor wireless environment Methods and apparatus are provided for estimating a location of a plurality of wireless terminals. Signal strength measurements are obtained for at least one packet transmitted by each of the wireless terminals; and a Bayesian algorithm is applied to the signal stre... | 07/22/2008 |
| 7388499 | Electronic tag authentication device and communication adjustment method with electronic tag The electronic tag authentication device of the present invention authenticates the contents of an electronic tag attached to goods. The electronic tag authentication device comprises an antenna directivity change unit for changing the directivity of an antenna for ... | 06/17/2008 |
| 7383043 | Wireless network system capable of tracking a location of a mobile station and a method for tracking a location of the mobile station A system and a method for tracking a location of a private wireless network subscriber can precisely track and find out a location of a subscriber even within a service zone of a base station and can realize this precise tracking in a simple fashion. In a private wi... | 06/03/2008 |
| 7372403 | System and method for position determination by impulse radio A system and a method for position determination by impulse radio where first position information is determined for a first impulse radio using a positioning system, second position information is determined for the first impulse radio using at least one second imp... | 05/13/2008 |
| 7373245 | System and method for networking a plurality of nodes A system and method for networking a plurality of nodes is disclosed. A network of data devices having data representations of connectivity, network node position, and/or position topologies is also disclosed, wherein the network may be self-configuring and the netw... | 05/13/2008 |
| 7370362 | Method and apparatus for locating rogue access point switch ports in a wireless network Methods and apparatus are disclosed for locating and disabling the switch port of a rogue wireless access point. In one embodiment, a network management device is configured to detect the presence of a rogue access point on a managed wireless network. Once detected,... | 05/06/2008 |
