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| Number | Title | Issue Date |
| 8436772 | Device and method for estimating an orientation of a mobile terminal device A device for estimating a current orientation of a mobile terminal device at a current geographical position, wherein, at the current geographical position, a current measurement package may be determined which has a transmitter identification and an electromagnetic... | 05/07/2013 |
| 8405551 | Location estimation system, method and program Location estimation systems, methods, and non-transitory computer program products. The system includes: storage means provided in the computer, means for storing the vector datasets in the storage means of the computer, means for calculating the similarity between ... | 03/26/2013 |
| 8400358 | Method to modify calibration data used to locate a mobile unit A method of modifying calibration data used to geo-locate a mobile station located in an indoor environment is disclosed. When a mobile station is located indoors, the signal strength of signals received and/or transmitted by the mobile station have the tendency to ... | 03/19/2013 |
| 8395547 | Location tracking for mobile computing device A mobile computing device comprises a wireless transceiver and a processing circuit. The processing circuit is configured to store a data set for a predetermined location, the data set comprising location data and a location name. The processing circuit is further c... | 03/12/2013 |
| 8344948 | Positioning system calibration The described principles provide a method and system for calibrating an UWB RF positioning system. Means for automated calibration of the UWB RF positioning system allow calibration based on simple user input that does not require accuracy. Thus, the disclosed calib... | 01/01/2013 |
| 8339316 | Smart GPS use In one embodiment, a client device generates a location fingerprint. The fingerprint may include various data identified by scanning for WiFi network devices such as the MAC addresses of nearby WiFi access location as well as the respective signal strengths. For eac... | 12/25/2012 |
| 8325090 | Computer-implemented method and system for locating an indoor object A computer-implemented method for locating an indoor object includes: a) receiving an RF coordinate signal and a detecting signal; b) providing information of a located region with reference to the RF coordinate and the detecting signal; c) obtaining a motion sensor... | 12/04/2012 |
| 8289210 | Location measurement acquisition adaptive optimization A disclosed method uses the results of location queries to tune the value of measurements of a property to obtain a statistically representative measurement for geo location. As location requests arrive, a current measurement value associated with the serving area o... | 10/16/2012 |
| 8237612 | Inferring beacon positions based on spatial relationships Estimating positions of beacons based on spatial relationships among neighboring beacons. Beacon reference data defining positions of beacons is stored from beacon fingerprints observed by devices (e.g., enabled with global positioning system receivers). For a recei... | 08/07/2012 |
| 8228234 | Power saving system and method for mobile computing device A mobile computing device includes a housing, a processor provided within the housing, and a location-determining system configured to determine a current location of the mobile computing device at a first rate. The location determining system may be configured to a... | 07/24/2012 |
| 8188921 | Apparatus and method for constructing and utilizing a beacon location database A method to support client device position discovery within a building includes ascribing building position coordinates to beacons within the building. The building position coordinates are converted to physical position coordinates. The physical position coordinate... | 05/29/2012 |
| 8174447 | Concept for localizing a position on a path An apparatus for localizing a position on a path, radio signals of fixedly positioned radio transmitters being receivable along the path, the apparatus including a determiner for determining properties of the radio signals of the fixedly positioned radio transmitter... | 05/08/2012 |
| 8138976 | Method for position estimation using generalized error distributions A method for improving the results of radio location systems that incorporate weighted least squares optimization generalizes the weighted least squares method by using maximum a posteriori (MAP) probability metrics to incorporate characteristics of the specific pos... | 03/20/2012 |
| 8106816 | Method of determining the position of a mobile device A set of device parameters consisting of clock bias and position of a mobile device is determined without previous knowledge of the week number (WN) in that solutions of a set of equations derived from a least squares type weight function involving pseudoranges rela... | 01/31/2012 |
| 8102314 | Method and apparatus for determining the location of a mobile object The invention relates to a position-finding method for determing the location of a mobile object. The features, for example received field strengths, of a plurality of base stations are measured, and the object position is located from these features, using a refere... | 01/24/2012 |
| 8102315 | Algorithm of collecting and constructing training location data in a positioning system and the positioning method therefor An algorithm of collecting and constructing training location data is provided as it is applied to a test space of a plurality of beacons and training locations. The signal patterns of beacons adjacent to each training location are detected. The signal pattern is co... | 01/24/2012 |
| 8081111 | Method and apparatus for locating the source of an unknown signal A method of locating the source of an unknown signal is provided that includes calculating a differential offset for a signal for each of a plurality of positions within a region in which the transmitter must lie, for each of a series of times m with respect to firs... | 12/20/2011 |
| 8077090 | Simultaneous localization and RF modeling The simultaneous localization and RF modeling technique pertains to a method of providing simultaneous localization and radio frequency (RF) modeling. In one embodiment, the technique operates in a space with wireless local area network coverage (or other RF transmi... | 12/13/2011 |
| 8068056 | Location reporting with secure user plane location (SUPL) Techniques for supporting periodic and other location services with Secure User Plane Location (SUPL) and other location architectures are described. The techniques can provide position estimates for a SUPL enabled terminal (SET) to a SUPL agent periodically and/or ... | 11/29/2011 |
| 8059032 | Positioning control device and positioning control method A positioning control device includes a GPS hardware control unit that makes GPS determine a current location at different positioning accuracies, and a positioning request management unit that makes the GPS hardware control unit carry out positioning in response to... | 11/15/2011 |
| 8054226 | Method for estimating location of nodes in wireless networks A method localizes a set of nodes in a wireless network that includes a target node having unknown location and a set of anchor nodes having known locations. The set of anchor nodes is partitioned into subsets of anchor nodes, wherein each subset has at least three ... | 11/08/2011 |
| 8031120 | Wireless position location and tracking system Techniques for accurate position location and tracking suitable for a wide range of facilities in variable environments are disclosed. In one aspect, a system for position location comprises a plurality of sensors (e.g. a network monitor, an environment sensor) for ... | 10/04/2011 |
| 8022875 | Indoor localization system and method An indoor localization method is implemented using an indoor localization system that includes beacons deployed in an indoor space and transmitting localization signals, and a radio badge for receiving the localization signals. The indoor localization method include... | 09/20/2011 |
| 8022876 | Indoor localization system and method An indoor localization method is implemented using an indoor localization system that includes beacons in an indoor space and each periodically transmitting a localization signal, a radio badge receiving the localization signals, and a host coupled to the beacons an... | 09/20/2011 |
| 7986271 | Tracking of emergency personnel Techniques are disclosed that allow for the detection, identification, direction finding, and geolocation of emergency personnel in a given multipath environment. For example, the techniques can be used to detect and identify multiple lines of bearing (LOBs) to an I... | 07/26/2011 |
| 7956808 | Method for position estimation using generalized error distributions A method for improving the results of radio location systems that incorporate weighted least squares optimization generalizes the weighted least squares method by using maximum a posteriori (MAP) probability metrics to incorporate characteristics of the specific pos... | 06/07/2011 |
| 7916085 | Method and apparatus for locating the source of radio frequency emissions At least two receiver sets are provided. A data processor is in communication with the receiver sets, wherein the data processor tags position data and radio frequency emission data from the receiver sets. A data storage unit is in communication with the data proces... | 03/29/2011 |
| 7911384 | System and method for enhancing the accuracy of a location estimate A method for enabling a system to enhance the accuracy of a location estimate modifies weights in a weight matrix associated with receiver station measurements in parallel with successive refinements of the location estimate. In a typical location estimation scenari... | 03/22/2011 |
| 7898472 | Method and apparatus for precise relative positioning in multiple vehicles A system and method for determining the position and velocity of a plurality of vehicles relative to a host vehicle using GPS data. The method includes building a graph of the vehicles that define weighted baselines between each of the vehicles and the host vehicle ... | 03/01/2011 |
| 7868826 | Method and system for determining locations of mobile stations using directional corrections A base station almanac (BSA) stores directional forward link calibration (FLC) values that correct for differences between the listed locations of base station antennas and the actual locations of the antennas. Each directional FLC value is specific to wireless sign... | 01/11/2011 |
| 7868825 | Apparatus and method for transforming signal strength of wireless positioning system An apparatus for transforming a signal strength of a wireless positioning system is provided. The apparatus is adapted for eliminating the difference of signal strengths between different mobile communication apparatuses or different environments. The apparatus incl... | 01/11/2011 |
| 7852266 | Apparatus and method for collaborative location awareness based on weighted maximum likelihood estimation Provided is an apparatus and method for collaborative location awareness based on weighted maximum likelihood estimation (MLE), which is configured to improve accuracy of location awareness between nodes in estimating a location of a blind node. The method includes ... | 12/14/2010 |
| 7821456 | Method and apparatus for utilization of location determination signal samples in noisy environments An apparatus for location determination includes a location determination receiver configured to receive location determination signals, a location determination signal quality assessment component configured to assess a quality of received location determination si... | 10/26/2010 |
| 7817092 | Agile electromagnetic geolocation The unknown location of an electromagnetic transmitter is determined by receiving the radiation at plural sensors distributed over an area. Received power is determined at each sensor, and normalized by taking ratios of powers from the various sensors. A plurality o... | 10/19/2010 |
| 7800540 | Method and system for determining locations of mobile stations using directional corrections A base station almanac (BSA) stores directional forward link calibration (FLC) values that correct for differences between the listed locations of base station antennas and the actual locations of the antennas. Each directional FLC value is specific to wireless sign... | 09/21/2010 |
| 7791538 | Location estimation method and system, and wireless device A location estimation system in which the location of a target device is estimated from the known locations of a set of anchor devices and information obtained from wireless signals transmitted between the target device and the anchor devices. The estimation process... | 09/07/2010 |
| 7786935 | Method and system for inferring a location of a mobile computing device A computer-based method for inferring a location of a mobile computing device comprises the steps of using the mobile computing device to receive data about one or more devices present in a first location at a first time, including those devices available for connec... | 08/31/2010 |
| 7701393 | Radio frequency navigation using frequency response matching A method for radio navigation may include predicting a frequency response for each of a multiplicity of possible device locations. The method may also include measuring a frequency response at an actual device location. The method may further include matching the me... | 04/20/2010 |
| 7659850 | Method and system for determining locations of mobile stations using directional corrections A base station almanac (BSA) stores directional forward link calibration (FLC) values that correct for differences between the listed locations of base station antennas and the actual locations of the antennas. Each directional FLC value is specific to wireless sign... | 02/09/2010 |
| 7626545 | Wireless position location and tracking system Techniques for accurate position location and tracking suitable for a wide range of facilities in variable environments are disclosed. In one aspect, a system for position location comprises a plurality of sensors (e.g. a network monitor, an environment sensor) for ... | 12/01/2009 |
