Abstract: A method and apparatus can ascertain a location of a personal portable wireless communication device. Movement of the personal portable wireless communication device can be sensed using a plurality of movement sensors on the personal portable wireless communication device. Wireless network signal strengths can be measured by the personal portable wireless communication device. A location of the personal portable wireless communication device can be ascertained based on the sensed movement of the personal portable wireless communication device and the measured wireless network signal strengths through Bayesian filtering.

Abstract: In an implementation, techniques are provided for tracking the location of a device that transmits wireless signal. The wireless signal can be received at a set of receivers. Distances to the device are determined based on signal strength. From the distances, boundaries encompassing possible locations of the device are defined. Boundary intersections are analyzed in order to determine the location of the device.

Abstract: Embodiments of the present invention for determining a geo-location for a device in communication with a network service provider begin with installing a mechanism for collecting geolocation data at a client device. The mechanism may be implemented as a mobile app, client application, browser plug-in, or other mechanism. The mechanism may collect geolocation data from multiple sources, including the device itself and other devices within the vicinity. The mechanism may also collect data regarding selected programs that may be installed on the client device. The geolocation data and program data may be transmitted back to a server for processing. The server may determine whether a geolocation is acceptable by determining a geolocation from the geolocation data, a likelihood of accuracy and/or trust score, as well as determining if any undesirable programs are stored on the client device.

Abstract: A method on a first device for estimating path-loss between the first device and a second device is described. A user context indicator associated with the first device is determined. At least one path-loss parameter of a plurality of path-loss parameters for the first device is updated based on the user context indicator. At least one wireless signal is received from the second device. The path-loss between the first device and the second device is estimated based on the plurality of path-loss parameters and the at least one wireless signal.

Abstract: A method of implementing a location-based service within a building is provided. The method includes receiving, from at least one electronic device, a plurality of data sets indicating information of wireless signals which the at least one electronic device measures for each time or for each location within the building; determining a similarity between the plurality of data sets; generating a logical path by integrating similar data sets; and generating a wireless signal map within the building by mapping the logical path to a physical path of the building.

Abstract: Aspects of the present disclosure provide techniques for constructing a scalable model of an indoor space using crowd-sourced inertial navigation system (INS) signals from mobile devices. By tracking INS signals from a number of participating users, the user's trajectories can be estimated as they move their mobile devices indoors. The estimated trajectories can be scored against similar routes taken by other users. Routes with the highest scores are then laid out over a map of the indoor space to identify areas most often traveled to and from landmarks and distances between the landmarks.

Abstract: Directions are provided to a location in an indoor space in response to receiving a request from a mobile device. First, a map of the indoor space is processed to identify navigable areas in the indoor space. A distance transform is then executed on the map as part of a process to generate a directed graph. The directed graph includes nodes that correspond to points in the indoor space and paths that correspond to routes between the nodes. Next, a navigation table is generated based on the directed graph to identify a shortest route from each node to at least one other node. In response to a request for directions to a location in the indoor space, the navigation table is accessed to identify a route to the requested location. The identified route is then provided to a mobile device such that an end user may navigate to the location.

Abstract: In one embodiment, techniques are employed to estimate a position of a wireless local area network (WLAN) enabled mobile device. The mobile device receives one or more wireless local area network (WLAN) packets transmitted within a range of the mobile device. The mobile device extracts information from the one or more WLAN packets to identify one or more WLAN access points (APs), and caches information indicating an identity of the one or more WLAN APs and a time of detection of the one or more WLAN APs. Subsequent to the caching, a request may be received for a position estimate of the mobile device. In response to the subsequently-received request for the position estimate, the cached information is provided to a WLAN positioning system (WPS) to obtain an estimate of a position of the mobile device.

Abstract: A system for analyzing the network traffic health of an inventory management system that includes an autonomous vehicle and a plurality of access points. The autonomous vehicle interacts with access points in an inventory management system, and network traffic information related to network connectivity between the autonomous vehicle and the access points is obtained. The autonomous vehicle or the access points transmit(s) the network traffic information to a computer system that can generate a graphical user interface that represents the network traffic information for the inventory management system. The network traffic information can include a variety of information about the interactions between autonomous vehicles and access points, such as roam time of the autonomous vehicles between access points as the autonomous vehicles navigate within the inventory management system.

Abstract: Embodiments disclosed aggregate a plurality of crowdsourced measurement sets for antennas received from a plurality of Mobile Stations (MS) with a Base Station Almanac (BSA), based on a measurement location estimate and a measurement location uncertainty estimate associated with each measurement set. A map comprising a plurality of map layers may be obtained, where each map layer associates locations in the BSA with spatially variable Forward Link Calibration (FLC) values for the antenna derived from the updated BSA data, wherein each spatially variable FLC value is associated with a corresponding location in the updated BSA data. Map layers, which may also include multipath map and/or received signal strength layers, may be provided to MS? as location assistance data.

Abstract: A location and tracking system has wireless base stations, an input interface, and a processor. It receives initial physical environment inputs for an environment, with default signal attenuation values for wall and obstacle segments. An initial channel parameters fingerprint of projected signal strengths in the environment is generated according to the initial physical environment model. The processor simulates motion of the node along a hth trajectory to create a corresponding fitness function describing how similar the channel parameters estimated along the hth trajectory by the prediction model are to gathered channel parameters by the mobile node along its trajectory. The model and the fingerprint are subsequently modified in iterations as possible mobile node trajectories are determined to perform location error estimation which takes into account the re-calculated fingerprint and gathered channel parameters and the hth trajectory as a ground truth.

Abstract: Techniques for estimating a location of a portable electronic device are provided. The techniques represent radio scene information detected by a portable electronic device as a vector. The vector may then be used to retrieve similar vectors associated with known locations from a corpus. The known locations may then be used to estimate the location of the portable electronic device.

Abstract: A system, method and product for determining a vehicle key fob location. The system may include a control unit for mounting in a vehicle and configured to receive multiple signals, each representing a strength of a wireless signal transmitted between the fob and one of multiple antennas located on a vehicle, and multiple neural networks having a cascade topology. The neural networks may include a first neural network for determining one of a vehicle internal position and a vehicle external position of the fob based on the wireless signal strengths, a second neural network in communication with the first neural network for determining one of multiple vehicle interior positions of the fob based on the wireless signal strengths, and a third neural network in communication with the first neural network for determining one of multiple vehicle exterior positions of the fob based on the wireless signal strengths.

Abstract: A method includes receiving a signal indicative that a first access point can transmit data over a first number of spatial streams, and a second access point can transmit data over a second number of spatial streams. The method includes receiving a probe request from a set of client devices. A first portion of the set of client devices is configured to transmit data over the first number of spatial streams and a second portion of the client devices is configured to transmit data over the second number of spatial streams. The method includes sending a signal to the first portion associated with authorizing the first portion to connect to the first access point and sending a signal to the second portion associated with authorizing the second portion to connect to the second access point.

Abstract: A method of synchronizing optronic systems, of the type operating simultaneously on one and the same scene, each optronic system being intended to emit and/or receive light of a target of the scene and each optronic system having an internal precision clock and a module suitable for synchronizing the internal clock with a reference time signal, the method being characterized in that it has the following steps of receiving and generating a reference time signal by each synchronization module, the reference time signal being independent of the optronic systems and emanating from an item of equipment different from the optronic systems, and synchronizing the internal clock of each optronic system with the reference time signal by the synchronization module.

Abstract: An aiming system of an aimable device includes a user display, an imaging system, user controls, a tracker, and a range finder such as a LRF. The imaging system displays, on the user display, an indicator of the direction in which the device points. The user uses the user controls to lock on a target towards which the device points according to the indicator. Then the tracker tracks the target, and the range finder measures the range to the tracked target. The tracker aims the range finder at the target, or alternatively scans the target and its background, one-dimensionally or two-dimensionally.

Abstract: The present disclosure relates to a method, computing device and computer program product for visual representation of radio frequency (RF) propagation of at least radio cell on a floor plan of a building. The floor plan and the at least one radio cell are displayed on a display of the computing device. At least one density zone is defined on the floor plan via a user interface of the computing device. A RF propagation calculation strategy is selected via the user interface of the computing device. The RF propagation for the at least one radio cell is calculated by a processing unit of the computing device, based on the configuration of the radio cell, the position of the radio cell with respect to the density zone and the selected RF propagation calculation strategy. The processing unit of the computing device further adjusts the calculated RF propagation as a function of a scale of the floor plan.

Abstract: Electronic arrangement for positioning a mobile device, including a mapping entity configured to obtain positioning data, from a plurality of measuring mobile devices present in an area of interest, establish and maintain, based on the obtained data, a multi-level probability map model structure for the area, wherein each higher level covers the area with lower spatial resolution by a plurality of determine sub-areas, each having a unitary character, and each lower level correspondingly covers, for each the sub-area of the adjacent upper level, a plurality of determined sub-areas thereof with higher spatial resolution, the lowest level determining the highest spatial resolution location elements of the model, optionally coordinates, a locating entity configured to obtain data provided by the mobile device, determine an estimate of the position of the mobile device by traversing through at least a portion of a number of vertical candidate paths of the multi-level probability model structure.

Abstract: According to an embodiment, a method provides information regarding the vicinity of a vehicle. The method includes, in the vehicle, providing a sensor signal representative of an environmental condition in a vicinity of the vehicle, transmitting the sensor signal over a power line in the vehicle, receiving the sensor signal transmitted over the power line and transmitting a corresponding wireless sensor signal in the vehicle, receiving the wireless sensor signal and recovering the sensor signal, and presenting the recovered sensor signal in a human-perceivable form.

Abstract: In one embodiment, techniques are employed to estimate a position of a wireless local area network (WLAN) enabled mobile device. The mobile device sniffs one or more WLAN packets destined for one or more WLAN devices other than the mobile device. Information identifying one or more WLAN APs is extracted from the one or more WLAN packets destined for the one or more WLAN devices other than the mobile device. A record of the one or more WLAN APs is generated that includes at least some of the extracted information. A WLAN positioning system (WPS) is cooperated with, to use the generated record of the one or more WLAN APs to obtain an estimate of a position of the mobile device.

Abstract: A method comprises: receiving colliding signals by a receiver from a plurality of signal sources, such that the receiver has a respective non-zero probability of detecting and identifying the colliding signals from each respective one of the signal sources at a given time. The colliding signals are configured with at least one common transmission parameter value so as to interfere with each other, so that the receiver only detects and identifies one of the received colliding signals at any given time. The receiving and identifying are performed during each of a plurality of cycles. A probabilistic model is used to calculate the location of the receiver. The model correlates a respective number of times the receiver detects and identifies one of the colliding signals and the probability of that signal being identified by the receiver, given the location of the receiver.

Abstract: A high integrity navigation system and method are provided. The method comprises performing a cyclic redundancy check (CRC) of a desired flight path of an aircraft, for example an approach to an airport, and comparing the CRC with a stored CRC performed on the identified flight path. If the comparison exceeds a first threshold, a first alert is provided wherein the pilot is to perform a published missed approach. A second alert, also requiring a missed approach, is provided when one or more comparisons are performed of a sensor position of the aircraft with the high integrity flight path; a defined flight path with the high integrity flight path; and the sensor position with an aircraft position determined by a flight management system, and thresholds are exceeded.

Abstract: Positions of non-reference wireless transceivers to be added to a wireless communication network are determined as follows. Each non-reference wireless transceiver performs measurements of times of arrival (TOA) of signals transmitted by other non-reference wireless transceivers, as well as reference wireless transceivers. Thereafter, time difference of arrival (TDOA) values are computed from at least two types of pairs of measurements as follows: (a) unknown-unknown TDOA values are obtained as differences between TOA measurements of signals transmitted by non-reference wireless transceivers and (b) unknown-known TDOA values are obtained as differences between a TOA measurement of a signal transmitted by a non-reference wireless transceiver and another TOA measurement of another signal transmitted by a reference wireless transceiver.

Abstract: The invention relates to a method for determining the navigation speed of a carrier using a hybridization device (1) including a Kalman filter (3) developing a hybrid navigation speed (Vref) from inertial measurements calculated by a virtual platform (2) estimating a speed of the carrier (formula (I)) and frequency measurements outputted by a Doppler radar (4) having a multi-lobe antenna built therein, such that a Doppler frequency (F1, F2, F3, F4) is associated with each of the lobes, wherein said method includes the following steps: estimating, from the estimated speed (formula (I)), frequencies (F1, F2, F3, F4) corresponding to each of the Doppler frequencies (formula (II)) outputted by the radar; determining a group of observations where each observation represents an estimation deviation on the Doppler frequency associated with a lobe; calculating, by the Kalman filter (3), a speed correction (?V) to be applied to the estimated speed (formula (I)) on the basis of the group of observations.

Abstract: An apparatus including a processing device which identifies a first travel route, on which first travel route a vehicle can travel to a destination, and which generates a first message containing information regarding the first travel route, and a transmitter which transmits the first message to a communication device located at the vehicle. The apparatus automatically detects a departure of the vehicle from the first travel route, identifies a second travel route in response to the detected departure of the vehicle from the first travel route, generates a second message containing information regarding the second travel route, and transmits the second message to the communication device.

Abstract: A signal selecting device is provided. The signal selecting device includes a transceiver for repeatedly transceiving electromagnetic waves, a target candidate detecting module for detecting a plurality of objects based on echo signals received by the transceiver, a phase change amount calculating module for calculating a phase change amount between two echo signals from two positions of which distances from the transceiver are substantially the same but azimuths from the transceiver are different, and an object selecting module for selecting a predetermined object among the plurality of objects detected by the target candidate detecting module in a first scan based on a phase change amount of the object, the predetermined object being the same object as an object selected by the object selecting module in a second scan that is performed before the first scan.

Abstract: Techniques for determining time of arrivals (TOAs) of signals in a wireless communication network are described. Each cell may transmit (i) synchronization signals on a set of contiguous subcarriers in the center portion of the system bandwidth and (ii) reference signals on different sets of non-contiguous subcarriers distributed across the system bandwidth. A UE may determine TOA for a cell based on multiple signals transmitted on different sets of subcarriers. The UE may perform correlation for a first signal (e.g., a synchronization signal) from the cell to obtain first correlation results for different time offsets. The UE may perform correlation for a second signal (e.g., a reference signal) from the cell to obtain second correlation results for different time offsets. The UE may combine the first and second correlation results and may determine the TOA for the cell based on the combined correlation results.

Abstract: An RF position tracking system for wirelessly tracking the three dimensional position of a device that transmits a radio signal. The device has an antenna and at least one inertial sensor. The system uses a plurality of receiver antennas to receive the device's radio signal at each antenna. The device also incorporates an inertial sensor to improve position stability by allowing the system to compare position data from radio signals to data provided by the inertial sensor.

Abstract: A method for identifying transmitters by a terminal in a single-frequency network comprising a plurality of transmitters. The transmitters are synchronized and transmit with an artificial delay ?i, specific to each transmitter. The method comprises at least one step of acquiring the approximate position of the terminal {circumflex over (p)}, the position pi of a list of transmitters {Tx} in the vicinity of the terminal and the delays ?i associated with them, a step of measuring pseudo-distances ?i between the transmitters and the terminal and a step of associating the measurements ?i with the transmitters of known positions pi by minimizing a cost function, said cost function ?(?i,{circumflex over (p)},?) corresponding to the norm of the error between the measurements ?i and a model of measurements of the pseudo-distances applied to a permutation of the position of the transmitters ?.

Abstract: 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 uncertainty expressible as an uncertainty ellipse having major and minor axes, the method comprising using the uncertainty vectors describing the uncertainty ellipses of the radio transmitters in a predetermined coordinate system to define a new compound coordinate basis, and forming an estimate of the two-dimensional position of the radio receiver in the compound coordinate basis by projecting the major and minor axes of each uncertainty ellipse onto the new compound coordinate basis and calculating the position of the radio receiver by means of a weighted centroid that uses weighting values calculated in the new compound coordinate basis and position estimates of the plurality of the radio transmitters expressed in the compound coordinate basis.

Abstract: Methods, apparatuses, and systems are provided for processing positioning signals to obtain navigation information by applying compressed sensing.

Abstract: In a method for directing a user of a mobile computing device to an object, a mobile computing device determines an area in which a user of the mobile computing device is located. The mobile computing device determines a location of an object within the area, in relation to the user. The mobile computing device provides at least one audio tone to indicate at least the location of the object in relation to the user.

Abstract: A method and apparatus for controlling location information at a computer device such as a mobile telephone. Location information is intercepted and obtained by, for example, intercepting it from an Application Programming Interface destined for a location application. The location application is identified, and a rule is determined for applying to the location information on the basis of the identified location application. The rule is applied to the location information to give amended location information, and the amended location information is then sent to the location application.

Abstract: An embodiment of the invention provides a method of determining a location of a mobile target that processes locations for the target provided by a wireless location technology tracker system to determine if the locations are outliers, discards locations that are determined to be outliers, and uses locations determined not to be outliers as locations for the target.

Abstract: Disclosed herein are embodiments of a balloon-based positioning system and method. In one example embodiment, a system includes a group of at least three balloons deployed in the stratosphere and a control system configured for: determining a first set of spatial relationships relating to the group; determining a second set of spatial relationships relating to at least a portion of the group and to a reference point; determining a position of the reference point relative to the earth; using the determined first set, the determined second set, and the determined position of the reference point relative to the earth as a basis for determining a position of a target balloon in the group relative to the earth; and transmitting the determined position of the target balloon relative to the earth.

Abstract: A method and system of determining the position of a radio signal transmitter are described. The method includes determining the type of radio signal being transmitted from the radio signal transmitter by analysing radio signal characteristics and correlating different sets of information to determine the position of the radio signal transmitter. Each set of information corresponds to a different relative position of at least one receiver to the transmitter and includes radio signal data derived from radio signals received by the at least one receiver from the transmitter at each respective relative position and positioning data containing information about the position of the at least one receiver at each respective relative position.

Abstract: Systems and methods are operable maintain a proscribed Self Separation distance between an unmanned aircraft system (UAS) and an object. In an example system, consecutive intruder aircraft locations relative to corresponding locations of a self aircraft are determined, wherein the determining is based on current velocities of the intruder aircraft and the self aircraft, and wherein the determining is based on current flight paths of the intruder aircraft and the self aircraft. At least one evasive maneuver for the self aircraft is computed using a processing system based on the determined consecutive intruder aircraft locations relative to the corresponding locations of the self aircraft.

Abstract: A handle bar route extension mechanism for creating or modifying a flight route. The handle bar route extension mechanism can allow a user to create or modify a flight route using a destination point. The handle bar route extension mechanism can be automatically rendered in a display in response to a touch input. In some configurations, the handle bar route extension mechanism may be rendered in a display in various directions or various lengths based on different inputs. In further configurations, more than one handle bar route extension mechanism may be rendered in a display.

Abstract: The present invention provides a system, method and computer program for anonymous localization. The location of a mobile device can be determined based on received signal strength (RSS) from one or more access points (APs) and a radio map. A radio map can be generated by measuring RSS at a set of fingerprints, which are a finite set of reference points within the area to be mapped.

Abstract: Apparatus and methods for scanning for access points (APs) for wireless local area network (WLAN) positioning. In one embodiment a wireless device includes a WLAN positioning system. The WLAN positioning system includes an AP scanner. The AP scanner is configured to determine which WLAN channels are being used by APs proximate to the wireless device. The AP scanner is also configured to scan for AP transmissions only the WLAN channels determined to be used by APs proximate to the wireless device. The AP scanner is further configured to extract signal strength and AP identification information for WLAN positioning from the AP transmissions on the scanned channels.

Abstract: A method and apparatus for limiting redundant positioning polling from a mobile device in a Real-Time Location System (RTLS) is disclosed. The method comprises reading a current position of the mobile device, establishing a virtual perimeter around the mobile device, measuring a plurality of signal strengths from a plurality of access points within the virtual perimeter, determining whether the mobile device has moved outside of the virtual perimeter, and transmitting a plurality of signal strengths from a plurality of access points to a location server when the mobile device has moved outside of the virtual perimeter.

Abstract: A method and apparatus for harvesting information from a plurality of radio frequency (RF) sources. In one example, a collector device receives RF signals from the RF sources to produce the harvesting information. The collector device also determines environmental context information describing a physical environment of the collector device as the RF signals were being received, and a position of the collector device where the RF signals where received. The collector device then associates the environmental context information with the harvesting information and the position, and transmits the harvesting information and position with the associated environmental context information to a server device. The server device may then compute positioning information biased to different environmental contexts. This biased positioning information may then be utilized by other collector devices having similar environmental contexts to better estimate their respective locations.

Abstract: According to an embodiment of the present invention, geolocations of multiple unknown radio frequency (RF) signal sources are determined using three-dimensional (3-D) geolocation techniques. The three-dimensional (3-D) geolocation techniques obtain reliable geolocation estimates of radio frequency (RF) emitters based on energy or received signal strength (RSS) of emitter transmitted signals and based on their time differences of arrival (TDOAs) at various sensor locations. The energy based geolocations and the time difference of arrival (TDOA) geolocations are combined to determine an overall set of geolocations for multiple unknown radio frequency (RF) signal sources. The geolocation information is used to track and monitor the locations of the multiple emitters.

Abstract: At a current position, a measurement packet is determined by a mobile terminal device at a measurement time. The measurement packet includes transmitter identifications of radio transmitters receivable at the current position of the mobile terminal device at the measurement time. By means of reference measurement packets provided to the mobile terminal device, the mobile terminal device itself can determine its current position. Additionally, a deviation of the determined transmitter identifications of the measurement packet from reference transmitter identifications of the reference measurement packets is determined.

Abstract: Systems and methods are provided for tracking at least position and angular orientation. The system comprises a computing device in communication with at least two cameras, wherein each of the cameras are able to capture images of one or more light sources attached to an object. A receiver is in communication with the computing device, wherein the receiver is able to receive at least angular orientation data associated with the object. The computing device determines the object's position by comparing images of the light sources and generates an output comprising the position and angular orientation of the object.

Abstract: Various arrangements for performing location disambiguation are presented. A mobile device may receive a plurality of location hypotheses. The mobile device may also receive an indication of a disambiguation evaluation technique selected from a plurality of disambiguation evaluation techniques. The mobile device may perform the disambiguation evaluation technique using the plurality of location hypotheses. Using the disambiguation evaluation technique, a location hypothesis of the plurality of location hypotheses may be selected by the mobile device as corresponding to the mobile device's location.

Abstract: A method for the construction of commuting matrices using call detail records, computer programs and a use for providing user's mobility information, including computing mechanism for constructing a commuting matrix according to phone call records of a user. The method includes: a) providing a user's origin time range; b) providing a user's destination time range or second user's origin time range; c) constructing the commuting matrix based on call detail records using the user's origin time range and the user's destination time range; d) comparing the commuting matrix with a predetermined ground truth matrix and obtaining a comparison result; and e) optimizing the origin time range and/or destination time range based on the comparison result.

Abstract: Techniques are provided for utilizing one or more mobile devices to estimate distances between wireless access points (APs). Embodiments can, for example, enable mobile devices, wireless APs, and/or other systems to estimate a distance between two wireless APs using Round-Trip Time (RTT) measurements obtained by one or more mobile devices. The RTT measurements can be utilized based on whether one or more related Received Signal Strength Indication (RSSI) measurements exceed a threshold value. Embodiments can also utilize crowdsourcing to obtain distance estimation data (e.g., distance estimates, RTT and/or RSSI measurements, etc.) from one or more mobile devices and/or propagate a determined distance, based on the distance estimation data, to multiple devices.

Abstract: Embodiments enable geofencing applications and beacon watch lists. A computing device with at least a first processor and a second processor identifies a set of beacons associated with a geofence. The first processor consumes less power when operating than the second processor. The first processor is provided with the identified set of beacons. In beacon watch list embodiments, the first processor detects one or more beacons proximate to the computing device, compares the detected beacons with the provided set of beacons to determine whether the computing device is within the geofence, and updates a location status based on the comparison. In tiered geofencing implementations, the computing device switches among positioning modalities based on a distance from the computing device to the geofence to save power.

Abstract: Methods and apparatuses are provided that may be implemented in a mobile device to determine that the mobile device is located within a particular level of a multi-level physical structure based, at least in part, on a comparison of measured wireless signals and stored measurements of wireless signals.