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With transmisson of bearing or position determinative signals

Subclass of:

342 - Communications: directive radio wave systems and devices (e.g., radar, radio navigation)

342350000 - DIRECTIVE

342385000 - Beacon or receiver

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
342387000 Iso-chronic type 72
342394000 Iso-phase type 7
342399000 Tacan 2
20110215968SYSTEM AND METHOD OF GENERATING A RADIO FREQUENCY SIGNAL - A system and method of generating a radio frequency signal adapted for allowing a receiving device to calculate a navigational indicator relative to a plurality of antennas. The system comprising a radio frequency generator unit for generating: a primary signal for driving at least one antenna of the plurality of antennas to provide a primary transmission; and an actively derived secondary signal to complement the primary signal for driving at least one other antenna of the plurality of antennas to provide, collectively with the primary transmission, the combined transmission, wherein the combined transmission, relative to the primary transmission only, provides a reduced observed distortion at the receiving device.09-08-2011
20140285379MONITORING DEVICE AND DOPPLER VOR SYSTEM - According to one embodiment, a monitoring device includes a monitoring antenna, a frequency converter, a filter, a detector, and an azimuth detector. The monitoring antenna receives a carrier wave, an upper sideband wave, and a lower sideband wave as a VOR signal. The frequency converter converts a frequency band of the VOR signal into an IF band. The filter includes passband. The passband removes a component of the lower sideband wave in the VOR signal. The detector detects a component of the carrier wave, and a component of the upper sideband wave from the signal output from the filter. The azimuth detector detects an azimuth based on the detected carrier wave component, and the detected upper sideband wave component.09-25-2014
342393000 Iso-frequency type 2
20100207820DISTANCE MEASURING DEVICE - Problems The present invention relates to a distance measuring device that measures the distance between a single signal transmitting means and a single signal receiving means with high accuracy by the signal transmitting means transmitting radio frequency signals.08-19-2010
20130063308Cell Organization and Transmission Schemes in a Wide Area Positioning System (WAPS) - A position location system comprises transmitters that broadcast positioning signals. Each broadcasted positioning signal comprises a pseudorandom ranging signal. The position location system includes a remote receiver that acquires and measures the time of arrival of the positioning signals received at the remote receiver. During an interval of time, at least two positioning signals are transmitted concurrently by the transmitters and received concurrently at the remote receiver. The two positioning signals have carrier frequencies offset from one another by an offset that is less than approximately twenty-five percent of the bandwidth of each positioning signal of the two positioning signals. Cross-interference between the positioning signals is reduced by tuning the remote receiver to a frequency of a selected signal of the two positioning signals and correlating the selected signal with a reference pseudorandom ranging signal matched to a transmitted pseudorandom ranging signal of the selected signal.03-14-2013
342398000 Rotating beacon signal 2
20110102265Localization 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; transmitting a wireless signal while the first antenna rotates about the axis for every a predetermined central angle; receiving the wireless signal at the sensor node; obtaining Received Signal Strength Indications (RSSIs) of the respective wireless signals; and determining a location of the sensor node according to the RSSIs.05-05-2011
20120212373System for Measuring the Radial Speed of a Moving Body - A system for measuring the radial speed of a moving body in a line of sight determined for a referential position includes an emitter assembly for emitting a signal and a referential receiver assembly dedicated to reception of said signal. The emitter assembly is disposed on a first of the elements of a group formed by the moving body and the referential position. The receiver assembly is disposed on a second of the elements of the group. The emitter assembly is able to emit a signal on at least two emission frequencies, said emission frequencies being separated by a chosen emission frequency gap. The system includes a means for analyzing the signal received by the receiver assembly, to measure the reception frequency gap separating the signal reception frequencies to calculate the radial speed of the moving body according to a function of the reception frequency gap and emission frequency gap.08-23-2012
342407000 Fixed course or bearing indicating 2
20090115662Localizer cable fault analyzer - A Localizer cable fault analyzer that memorizes which antenna in a Localizer antenna array caused a fault. The Localizer equipment monitors the antenna transmit and monitor cables for continuity using a DC voltage. The present invention senses the voltage drop on the antenna circuit when a fault occurs and causes an indicator device to signal the presence of the fault in that particular antenna circuit. The indicator device continues to signal the presence of a fault until a reset switch is activated.05-07-2009
20150301150DELIVERY BEACON DEVICE AND METHODS FOR USE THEREWITH - A beacon device includes a beacon code generator that generates beacon data that uniquely indicates a subscriber. A beacon generator generates a wireless homing beacon that indicates the beacon data. The wireless homing beacon is detectable by the at least one drone delivery device to facilitate a service delivery by the drone delivery device at the location of the beacon device.10-22-2015
Entries
DocumentTitleDate
20080211718Method and Apparatus for Determining the Position and Orientation of a Missile - A system for determining the position and orientation of a flying object such as a missile includes a ground segment having at least one pseudolite station located on the earth's surface which transmits into space a navigation signal that uniquely identifies the pseudolite station, and a user segment having at least one sensor which is situated in the missile and is designed to receive the navigation signal from the at least one pseudolite station and to determine its absolute position and orientation in space on the basis of the received navigation signal.09-04-2008
20080316103APPARATUS FOR POSITION DETECTION USING MULTIPLE ANTENNAS - An apparatus includes a transmitter and a receiver device, which includes a receiver section and a processing module. The transmitter transmits a high carrier frequency signal. The receiver section includes first and second antennas that have an antenna radiation relationship for receiving the high carrier frequency signal. A receiver module of the receiver section determines first and second signal properties of the received high carrier frequency signal. The processing module determines a position of the receiver device with respect to the transmitter based on the first and second signal properties and maps the position to a coordinate system.12-25-2008
20090040108Determining Precise Direction and Distance to a Satellite Radio Beacon - The present invention discloses a device and method for precisely determining the direction and distance to a satellite radio beacon. In one embodiment, the disclosed device is used for SAR (search and rescue) of people in distress, upon activation of an emergency radio beacon, such as a marine EPIRB (Emergency Position Indicating Radio Beacon) or an airborne ELT (Emergency Locator Transmitter) or a terrestrial PLB (Personal Location Beacon) or a marine SSAS (Ship Security Alert System) beacon, beacons which are part of the Cospas-Sarsat system.02-12-2009
20090085806APPLICATIONS FOR GEOGRAPHICALLY CODED ACCESS POINTS - Applications and uses for geographic coded of network access points includes a method for generating a geographic code and an associated graphical user-interface; a method for rejecting or filtering out geographic codes of inaccurately labeled access points; a method for using geographic codes as part of network service discovery; a method for using geographic codes as part of resource discovery and display; a method for using geographic codes for asset tracking; a method for using geographic codes for file transfer and an associated user interface; a method for using geographic codes for location tracking; a method for using geographic codes as part of a domain name registry; and a method for sending geographic codes automatically.04-02-2009
20090121938Automatic Tracking Camera - A tracking system includes an emitter array configured to emit radiation around a subject to be tracked in at least one dimension wherein each emitter or group of emitters is modulated to permit identification of a source of the radiation. A receiver is configured to receive the radiation from the emitter array, wherein one of the emitter array and the receiver are located on the subject to be tracked. A processor is configured to interpret changes in radiation and correlate the changes to a device position to output a device position control signal.05-14-2009
20090303129METHOD FOR POSITIONING, A POSITIONING SYSTEM, AND AN ELECTRONIC DEVICE - A method for positioning a wireless communication device includes storing position data relating to one or a plurality of reference areas to at least one data base. It is examined which of said reference areas is located in the vicinity of the wireless communication device, and at least position data about the reference area located in the vicinity of the wireless communication device is retrieved for the wireless communication device. In order to perform the positioning, the method further includes selecting the reference area located in the vicinity of the wireless communication device as the default position of the wireless communication device.12-10-2009
20100052989METHOD AND APPARATUS FOR DETERMINING AT A PREDETERMINED GRANULARITY THE DIRECTION AND RANGE OF A TRANSMITTING MOBILE DEVICE - Systems and methods for determining a direction and range, at a predetermined level of granularity, for a transmitting device in a communications system are presented. Determinations, based on indicia related to the signal conditions, information contained in the received signals, and/or inferences surrounding the transmission conditions can be employed in identifying a transmitter, determining the range and direction of a transmitter and/or identifying a relative location of a transmitter without relaying, retransmitting, and/or conveying the transmitted and received signal across a supporting communications network. These determinations can be formed centrally at the transmitting or receiving user equipment or mobile device or formed in a distributed manner between the transmitting and receiving user equipment or mobile devices across a communications system.03-04-2010
20100073234POSITIONING - A system, including: an electrical network fitted to a building, for distributing electrical power within the building to make the building operational, the network comprising a plurality of nodes for outputting the electrical power each node comprising a receptacle for receiving a lighting element; and a plurality of radio devices, retrofitted to the operational building, wherein each of the radio devices is operable, when powered via a respective node of the network, to transmit data relating to positioning.03-25-2010
20100103046Robust Low-Frequency Spread-Spectrum Navigation System - Methods and apparatus are described for a navigation system. A process includes providing a plurality of transmitters distributed throughout a desired coverage area; locking the plurality of transmitters to a common timing reference; transmitting a signal from each of the plurality of transmitters. An apparatus includes a plurality of transmitters distributed throughout a desired coverage area; wherein each of the plurality of transmitters comprises a packet generator; and wherein the plurality of transmitters are locked to a common timing reference.04-29-2010
20100123626MOBILE STATION POSITION LOCATING METHOD, POSITION LOCATING BASE-STATION SELECTING METHOD AND MOBILE STATION POSITION LOCATING SYSTEM - A mobile station position locating system is provided in which having a provisional position locating section sets base station set and locate a position of a mobile station as a provisional position locating result using the base station set. A provisional position locating result-group extracting section extracts a provisional position locating result associated with the base station set not including a specified base station, among provisional position locating results. A variation calculating section calculates a variation σ of a provisional position locating result group with each base station being assigned to a specified base station, and a position locating base-station setting section sets a position locating base station excluding the base station assigned to the specified base station, among the provisional position locating result groups with the least variations. A mobile station position locating section locates the position of the mobile station based on position locating results using the base station set constituted of the position locating base stations.05-20-2010
20100127933ALGORITHM 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 converted into a signal vector and each signal vector is integrated for calculating a feature vector of each training location. The coordinate and the feature vector of each training location, after being recorded, are introduced into a numerical data fitting model for constructing the signal pattern function of each beacon. For positioning, the current signal patterns of the beacons adjacent to the user location are detected and converted to a discriminant function. Thereafter, the minimum of the discriminant function is computed so as to find the position of the user location.05-27-2010
20100149040METHOD FOR GENERATING A LOCATION SIGNAL - A communication device uses its FGU to generate a location signal that can be used by a reference device to calibrate the communication device and to determine the distance of the communication device from the reference device. The communication device: receives, from a reference device, at least one location signal control parameter that defines pulse shape characteristics for a location signal; configures its FGU based on the at least one location signal control parameter; generates a linear first part of a phase-incoherent location signal having the defined pulse shape characteristics by progressively sweeping an output of the FGU over a range of frequencies from a first frequency to a second frequency within a first time period; and transmits at least one iteration of the first part of the location signal.06-17-2010
20100164807SYSTEM AND METHOD FOR ESTIMATING STATE OF CARRIER - A system and a method for estimating a state of a carrier are provided. The system includes the carrier, an electromagnetic wave sensing device, a motion sensing device, and a controller. The electromagnetic wave sensing device detects an electromagnetic wave emitted by at least one feature object in an environment around the carrier. The motion sensing device detects motion information of the carrier moving in the environment. The controller estimates state information of the carrier in the environment through a probabilistic algorithm according to the electromagnetic wave and motion information detected by aforementioned sensing devices. Thereby, in the present invention, the location and posture of the carrier in the environment can be precisely estimated according to the motion information of the carrier and existing information of the environment around the same.07-01-2010
20100182201DIRECTIONAL BEACON DEVICE - A beacon device includes a control circuitry, a window, and a plurality of sets of illumination sources. The window includes a prismatic structure forming a ring from a planar perspective. The prismatic structure defines an inside surface and an outside surface from the planar perspective. The plurality of sets of illumination sources are coupled to the control circuitry. Each set of illumination sources includes a first illumination source disposed proximal to the inside surface of the prismatic structure and includes a second illumination source disposed proximal to the outside surface of the prismatic structure. The control circuitry is to illuminate a first set of the plurality of sets of illumination sources to transmit a signal in a first direction.07-22-2010
20100188291Staccato pulse edge correlation - The present invention discloses a system and method for mitigating multipath in DSSS CDMA radio navigation signals by a) transmitting a rapid pulsing pattern from a transmitting device to a position receiver that samples the transmitted signal, b) separating the received samples and storing sample-based correlation accumulation values into independent bins that are synchronous with the received pulsing pattern, c) applying a logical decision process to determine the accumulation bin associated with the leading edges of the received pulses, and d) generating a range estimate from the correlation accumulation bin associated with the leading edges of the received pulses.07-29-2010
20100220011RF TRANSMITTER GEOLOCATION SYSTEM AND RELATED METHODS - A system for geolocating a radio frequency (RF) transmitter in the presence of multipath interference may include a plurality of RF receivers arranged in spaced relation. The system may also include a controller coupled to the plurality of receivers and configured to generate a plurality of measurements associated with the RF transmitter. The controller may also compute a plurality of ambiguity functions based upon the plurality of measurements and due to the multipath interference, and project the plurality of ambiguity functions onto a common geo-referenced grid. The controller may also detect a peak on the common geo-referenced grid indicative of a geolocation of the RF transmitter.09-02-2010
20100225540POSITIONING SYSTEM, AIR CONDITIONING SYSTEM, AND LIGHTING SYSTEM - To provide a positioning system that clearly defines a disposition of a base station for identifying a position of a radio set. While a wireless base station 09-09-2010
20100231454System and method for providing secure communication between network nodes - A network, network device and method is disclosed. A network of network nodes is disclosed in which the network nodes securely transmit communication signals using one or more spatial parameters unique to the network nodes. A dad positioning device capable of operating as a node in a network of the present invention is also disclosed.09-16-2010
20100309052METHOD AND SYSTEM FOR DYNAMIC TRACKING UTILIZING LEAKY WAVE ANTENNAS - Methods and systems for dynamic tracking utilizing leaky wave antennas (LWAs) are disclosed and may include configuring a transmitting angle of a plurality of leaky wave antennas in a wireless device at a desired starting angle. A RF signal strength may be measured at the sweeping transmitting angles for each of the leaky wave antennas, and a location of one or more objects may be tracked from the measured RF signal strength and a corresponding angle of reception of the LWAs. A resonant frequency of the LWAs may be configured utilizing micro-electro-mechanical systems (MEMS) deflection. The LWAs may be situated along a plurality of axes in the wireless device. The LWAs may comprise microstrip or coplanar waveguides, where a cavity height of the LWAs is dependent on spacing between conductive lines in the waveguides. The LWAs may be integrated in integrated circuits, integrated circuit packages, and/or printed circuit boards.12-09-2010
20100315290GLOBALLY-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), a range rate, a range sum, and/or a frequency difference of arrival (FDOA). A processing device may receive the actual signal measurements and navigational data regarding the collectors. Then, the processing device may calculate an estimated target location as a solution to a nonlinear optimization problem where an objective function to be minimized is a weighted sum-of-squares of differences between the actual signal measurements and calculated values corresponding to signal measurements that theoretically should be produced for a particular target location. The algorithm used to solve this problem may be a globally convergent algorithm, such as a Levenberg-Marquardt algorithm.12-16-2010
20110102264APPARATUS AND METHOD FOR DETECTING INTERIOR POSITION USING DIGITAL BROADCASTING SIGNAL - Provided is a receiving apparatus for detecting an interior position using digital broadcasting signals includes: a receiving unit receiving a digital broadcasting signal, which includes navigation information used for determining a position of the receiving apparatus, transmitted from a digital broadcasting signal transmitting apparatus; and an output unit outputting a signal to outside the receiving apparatus via wireless communication, wherein the receiving unit receives the digital broadcasting signals from a plurality of the digital broadcasting signal transmitting apparatuses.05-05-2011
20110227790CUCKOO HASHING TO STORE BEACON REFERENCE DATA - Storing and retrieving beacon reference data in a truncated cuckoo hash table. Checksums of beacon identifiers associated with beacons are used to retrieve beacon reference data describing locations of the beacons in a hash table. The data is stored in one or more hash tables by cuckoo hashing to eliminate aliasing. The hash tables are provided to devices such as mobile devices. The devices retrieve the beacon reference data from the tables based using beacon identifiers of observed beacons. Location information for the devices is inferred using the retrieved beacon reference data. The cuckoo hash tables consume less memory storage space and obfuscate the beacon reference data.09-22-2011
20110227791SELECTING BEACONS FOR LOCATION INFERENCE - Location inference using selected beacons. Data is received representing a set of beacons observed by a computing device. The beacons are located within a first geographic area. A subset (e.g., a clique) of the beacons is selected based on a coverage area of each of the beacons, where each of the beacons in the selected subset has a coverage area that overlaps with the coverage area of each of the other beacons in the selected subset. Using known or estimated positions of the beacons, a second geographic area is defined based on the selected subset of beacons and the beacon reference data and the coverage areas associated therewith. The second geographic area, smaller than the first geographic area, represents an approximate location of the computing device. In some embodiments, the computing device is calculated to be within the second geographic area with 95% probability.09-22-2011
20110260921MULTI-USER INTERACTIVE MOTION TRACKING USING SENSORS - Mobile platforms exchange their positions in a three-dimensional common reference frame based on data from their respective inertial sensors. The mobile platforms establish the common reference frame, e.g., by contacting each other. The position of each mobile platform is updated in its local reference frame and the position is transformed into a position in the common reference frame. The position in the common reference frame may then be transmitted to the other mobile platform, which can then determine the spatial relationship between the mobile platforms based on the received common reference frame position. Either mobile platform may pass the common reference frame to additional mobile platforms by establishing a new reference frame with a new mobile platform, generating a transformation from the new reference frame to the common reference frame and providing the transformation to the new mobile platform.10-27-2011
20120098703Method for Determining Azimuth and Elevation Angles of Arrival of Coherent Sources - A method for jointly determining the azimuth angle θ and the elevation angle Δ of the wave vectors of P waves in a system comprising an array of sensors, a number of waves out of the P waves being propagated along coherent or substantially coherent paths between a source and said sensors, includes at least the following steps: selecting a subset of sensors from said sensors to form a linear subarray of sensors; applying, to the signals from the chosen subarray, an algorithm according to a single dimension to decorrelate the sources of the P waves; determining a first component w of said wave vectors by applying, to the signals observed on the sensors of the chosen subarray, a goniometry algorithm according to the single dimension w; determining a second component u of said wave vectors by applying a goniometry algorithm according to the single dimension u to the signals from the entire array of sensors; determining θ and Δ from w and u.04-26-2012
20120154219SYSTEM AND METHOD FOR LOCATING A TARGET USING A TRANSCEIVER ARRAY - The invention relates to a system and a method for locating at least one target (X) using au array of transceivers or sensors (S), in which at least a portion has a known geographic location, each comprising data processing means (S06-21-2012
20120162013Applications for Geographically Coded Access Points - The present invention provides systems and methods for self-labeling access points with their geographic location from received beacon frames. In particular, the present invention transmits beacon frames including temporary location information from mobile devices. The beacon frames are received by an access point, filtered by the access point and then used to determine a location. Once the location has been determined, the access point uses the determined location to self-label itself by converting the location information to a geographic code and inserting it as part of the SSID of the access point's beacon signal. The present invention also includes a number of methods using geographic codes including a method for generating and transmitting geographic codes for mobile devices, a method for determining a location of an access point, a method for self-labeling an access point, and a method for filtering beacon frames.06-28-2012
20120188128Orientation - An apparatus, a method and a computer program are provided. The apparatus comprises: determination circuitry configured to determine a first bearing from a first location to a radio transmitter at a second location, using at least one radio signal received from the radio transmitter; and orientation circuitry configured to control orientation of an electronic map, to align the first bearing with a second bearing of the electronic map, from the first location to the radio transmitter.07-26-2012
20120262338PROXIMITY MONITORING - Presented is a proximity monitoring apparatus and method. The apparatus comprises: a transmitter adapted to transmit a electromagnetic signal in a periodic time slot defined with reference to a master clock signal; and a detector adapted to receive the electromagnetic signal transmitted by the transmitter, to determine the period of the received electromagnetic signal, and to determine that the received electromagnetic signal was transmitted by the transmitter of the proximity monitoring apparatus if the determined period is within a predetermined range of values10-18-2012
20120280862WIRELESS LOCATION DETECTION AND/OR TRACKING DEVICE AND ASSOCIATED METHODS - The wireless detection beacon is for use with a Radio Frequency (RF) interrogator transmitting at a first frequency and receiving at a second frequency. The wireless detection beacon includes a substrate, a power supply carried by the substrate, an antenna assembly carried by the substrate, and a local oscillator (LO) carried by the substrate and configured to be powered by the power supply to provide an LO signal at a third frequency. A mixer is carried by the substrate and coupled to the antenna assembly and the LO. The mixer is configured to generate an outgoing beacon signal to the antenna assembly at the second frequency based upon mixing an incoming signal from the RF interrogator at the first frequency with the LO signal at the third frequency.11-08-2012
20120280863SYSTEM AND METHOD FOR LOCATION ESTIMATION - A device and method for providing location estimations. The device may be configured to estimate its location be transmitting and/or receiving signals of respective transmission ranges. The device may also be configured to transition from a client device operational mode to a location beacon operational mode once an accurate location estimation has been obtained.11-08-2012
20120299776EMERGENCY POSITION INDICATING RADIO BEACON TERMINAL AND APPARATUS AND METHOD FOR MONITORING OPERATING STATE THEREOF - The present invention relates to an emergency position indicating radio beacon (EPIRB) terminal for confirming positions of ships and rescuing the ships during a marine disaster in a marine search and rescue system and an apparatus and a method for monitoring an operating state of the EPIRB terminal. The EPIRB terminal comprises: a sensor unit for sensing the sinking of a ship in which the EPIRB terminal is provided; a generation unit for generating a distress message corresponding to the sensed result of the sensor unit; and a transmission unit for broadcasting a distress signal including the distress message. The sensor unit comprises: a water-pressure sensor for outputting a water-pressure detection signal by sensing the water pressure in the inside of the ship; a moisture sensor for outputting a moisture detection signal by sensing the moisture inside the ship; and a separation sensor for outputting a separation detection signal by sensing the separation of the EPIRB terminal from the ship. The sensor unit outputs a generating request signal of the distress message to the generation unit by normally sensing the sinking of the ship when the water-pressure detection signal, the moisture detection signal, and the separation detection signal are outputted.11-29-2012
20120319903SYSTEM AND METHOD FOR LOCATING MOBILE DEVICES - A system includes a three dimensional antenna and mobile devices that wirelessly communicate with the antenna. A phase of arrival and a phase difference of arrival are calculated, and a distance between the three dimensional antenna and the mobile device is calculated. A direction between the three dimensional antenna and the mobile device is calculated. The direction calculation includes an angular spread function of multipath scattering in the communication between the three dimensional antenna and the mobile device. The direction calculation further includes an estimation of a propagation delay and an angle in the communication between the three dimensional antenna and the mobile device.12-20-2012
20120326929Method, and Apparatus for Determining the Position Using Radio Signals - A method, comprising: detecting, at an apparatus, one or more radio signals from a first location; using the one or more detected radio signals to estimate a bearing from the first location; and using the bearing estimate to determine whether further detection of one or more radio signals is required before positioning the apparatus; and positioning of the apparatus using a bearing and constraint information.12-27-2012
20130021205HIGH-RESOLUTION, ACTIVE REFLECTOR RADIO FREQUENCY RANGING SYSTEM - A radio frequency ranging system is grounded in establishing and maintaining phase and frequency coherency of signals received by a slave unit from a master unit and retransmitted to the master unit by the slave unit. For a preferred embodiment of the invention, coherency is established through the use of a delta-sigma phase-lock loop, and maintained through the use, on both master and slave units, of thermally-insulated reference oscillators, which are highly stable over the short periods of time during which communications occur. A phase relationship counter is employed to keep track of the fractional time frames of the phase-lock loop as a function of the reference oscillator, thereby providing absolute phase information for an incoming burst on any channel, thereby enabling the system to almost instantaneously establish or reestablish the phase relationship of the local oscillator so that it synchronized with the reference oscillator.01-24-2013
20130106656Method for the Coordinated Processing of Signals Transmitted by Beacons05-02-2013
20130120192HIGH PRECISION RADIO FREQUENCY DIRECTION FINDING SYSTEM - High precision radio frequency direction finding systems are described that can determine an angle-of-arrival and geo-location of a RF emitter with respect to a mobile platform. A radio frequency direction finding (RFDF) system for determining a position of a RF emitter with respect to a mobile platform can include an angle-of-azimuth (AoA) system configured to determine an azimuth of a RF emitter with respect to the mobile platform; an attitude measurement system configured to measure the attitude of the mobile platform; a geo-location system configured to calculate the geo-location of the RF emitter; and a processor system configured to calculate a position of the RF emitter.05-16-2013
20130169484WIDE AREA POSITIONING SYSTEMS AND METHODS - Devices, systems, and methods for sending positional information from transmitters/beacons are disclosed. In one implementation a transmitter generates a range block including a ranging signal and a hybrid block including positioning data, and sends the range block and hybrid block in predefined slots in a transmit frame. A receiver in a user device receives signals from a plurality of transmitters and generates position/location information using trilateration and measured altitude information in comparison with transmitter altitude information.07-04-2013
20130234892Method for Radio Communication Between a Radio Beacon and an Onboard Unit, and Radio Beacon and Onboard Unit Therefor - Selective radio communication between a radio beacon and an onboard unit of a vehicle passing the radio beacon comprising: in the onboard unit determining the current heading of the onboard unit and transmitting information thereon to the radio beacon; in the radio beacon checking whether the heading indicated in the heading information is within predetermined boundaries, and if so, carrying out a radio communication with the onboard unit.09-12-2013
20130234893BROADCASTING DEVICE, POSITION MANAGEMENT SYSTEM, BROADCASTING METHOD, AND STORAGE MEDIUM - A broadcasting device includes a broadcasting unit configured to broadcast positional information indicating the position of the broadcasting device; and a receiving unit configured to receive, from a communication terminal receiving the broadcast positional information, terminal identification information for identifying the communication terminal and the positional information.09-12-2013
20130241773SYSTEM FOR ORIENTING AND POSITIONING AN ELECTROMAGNETIC RECEIVER - According to the invention, a transmitting beacon (09-19-2013
20130278462SYSTEM AND METHOD OF TRANSMITTING LOCATION DATA BASED ON WIRELESS COMMUNICATION ACTIVITY - Systems and methods of transmitting location data based on wireless communication activity can include a location transmitting device having a sensor communicatively coupled to a low-power transmitter. The transmitter (e.g., a Bluetooth™ transmitter) can transmit location data from which an electronic device can derive its location. The sensor can be a sensor configured to detect wireless data transmissions (e.g., cellular data transmissions). In one example, the transmitter can transmit location data in response to the sensor detecting data transmissions of an electronic device. The transmitter can remain in an idle, standby, or otherwise low-power state until the sensor detects data transmissions of an electronic device. In response, the transmitter can transmit data which can be received by the electronic device. The electronic device can then derive the electronic device's location from the data transmitted by the transmitter.10-24-2013
20130293421TERRESTRIAL POSITION AND TIMING SYSTEM - A terrestrial positioning and timing system (TPTS) comprising a ground segment and user segment is disclosed that is comprised of a spread-spectrum based range and bearing reference signal, with respect to a reference time, transmitted by an antenna over a broad region of space; and a spread-spectrum based bearing variable signal with bearing specific modulation referenced to a reference time, transmitted using a scanning antenna over a spatial region of space that is more narrow than the spread-spectrum based range and bearing reference signal transmission spatial area. Various embodiments enable the TPTS station and user to support various position, velocity or time services. Most notably, an embodiment with a single TPTS station, active interrogation/transponder reply, and data delivery subsystem can provide a position, velocity, and time solution for the user. Additional embodiments disclosed provide varying levels of user solutions to include bearing, position, velocity, or time.11-07-2013
20130293422METHOD AND DEVICES FOR IDENTIFYING A VEHICLE USING A LOCATION - Methods for identifying a vehicle using a predetermined location are provided, as well as a radio beacon and an onboard unit for use with the methods. One method comprises: carrying, on the vehicle, an onboard unit that broadcasts status messages that each indicate a current position of the onboard unit and a radio identifier that changes after each or several status messages; receiving at least one status message in a radio beacon; detecting a location usage of the vehicle by evaluating the status message(s) based on the position(s) indicated therein with respect to the predetermined location; transmitting an identification request from the radio beacon to the onboard unit addressed according to the radio identifier from the status message(s); receiving and conducting a legitimacy check of the identification request in the onboard unit and, if the request is legitimate, transmitting an identification of the onboard unit to the radio beacon.11-07-2013
20130307729METHODS AND SYSTEMS FOR USE IN SELECTING TARGETS FOR DIRECTION FINDING SYSTEMS - A first user device transmits a first signal, and a second user device transmits a second signal. A processing unit receives the first signal and the second signal. The processing unit identifies the first user device as an active target and the second user device as an active tracking device based on a predefined rule set including a plurality of selection criteria.11-21-2013
20130321208METHOD AND APPARATUS FOR PROVIDING LOCATION INFORMATION OF USER DEVICES BASED ON SIGNAL FREQUENCIES OF TRANSMITTERS - An approach is provided for providing location information of user devices based on signal frequencies of transmitters. The positioning platform processes and/or facilitates a processing of one or more signals, from one or more transmitters, captured at one or more user devices to determine one or more frequencies of the one or more signals. Next, the positioning platform determines device location information of the one or more user devices based, at least in part, on the one or more frequencies.12-05-2013
20130335271System And Method For Identifying And Tracking 3D Location Of Precast Components - A 3-dimensional (3D) precast locating system for identifying and tracking 3D location, that includes ground elevation and geographical location, of a precast, is provided. The system comprises an RFID tag embedded within the precast, a precast lifting machinery having a hook for lifting the precast, wherein a 3D location of the lifting machinery is predetermined as a reference, and an RFID reader attached to the lifting machinery for identifying the precast by operationally reading the RFID tag of the lifted precast. The system further comprises a sensor assembly for detecting an instant 3D location of the hook with reference to the predetermined 3D location of the lifting machinery and a position translational controller for deriving an instant 3D location of the lifted precast based on the 3D location of the hook detected by the sensor assembly, with reference to the predetermined 3D location of the lifting machinery.12-19-2013
20130342399BROADCASTING DEVICE, COMMUNICATION TERMINAL, AND BROADCASTING SYSTEM - A broadcasting device includes a broadcasting unit configured to broadcast positional information indicating an indoor position of the broadcasting device to a predetermined area, wherein the broadcasting unit broadcasts range information indicating the size of the predetermined area together with the positional information.12-26-2013
20140062790METHOD AND APPARATUS FOR PROVIDING LOCATION SHARING VIA SIMULATION - An approach for providing location sharing via simulation is disclosed. A location sharing platform determines at least one location point associated with at least one device and at least one algorithm for determining at least one predicted route of the at least one device based, at least in part, on the at least one location point. The location sharing platform then causes, at least in part, a transmission of the at least one location point and the at least one algorithm to at least one other device for generating location tracking information.03-06-2014
20140070996METHOD AND APPARATUS FOR FACILITATING DIRECTION FINDING - In a non-limiting and example embodiment, a method is provided for facilitating direction calculation, comprising: detecting, by an apparatus at least one indication frame from another apparatus, determining properties associated with transmission of at least one subsequent frame from the another apparatus on the basis of the at least one indication frame, and gathering measurement information for direction calculation on the basis of the determined properties and the at least one subsequent frame from the another apparatus.03-13-2014
20140077998SUPPLEMENTAL LOCATION-RELATED INFORMATION TRANSMIT IN UNASSOCIATED WIRELESS STATES - Systems and methods are directed to information exchange between a location point (LP) and a wireless device. A LP may include a network access point (AP) and/or a dedicated location entity. In one embodiment, supplemental location-related information of a LP including, but not limited to, a geographic location source, geographic location accuracy, geographic location update time, LP type, distance from another LP, and/or timing offset calibration accuracy, may be wirelessly transmitted from a LP to a wireless device.03-20-2014
20140145881DISTANCE MEASUREMENTS USING A SINGLE WIRELESS READER - A method, comprising: generating or receiving information about multiple distance measurements of distances between the wireless tag and the wireless reader at different points of time; wherein the wireless reader is positioned at different locations in relation to the wireless reader at the different points of time; generating or receiving information about a spatial relationship between the different locations or receiving information indicative of the spatial; and determining the location of the wireless tag in response to the multiple range measurements and the spatial relationship between the different locations.05-29-2014
20140197989ACTIVE POSITIONING SYSTEM - The object of the present disclosure is an active positioning system for positioning at least one mobile device (07-17-2014
20140253383POSITIONING BEACON TRANSMITTER - Disclosed are systems, methods and devices for configuring a beacon transmitter for use in positioning operations of mobile devices. A beacon transmitter may be connected to a utility grade power source at a power cable. The beacon transmitter may also demodulate one or more data signals transmitted over the power cable to at least partially define a configuration for the beacon transmitter.09-11-2014
20140253384Tiered Positioning Assistance Data for Mobile Devices Within an Indoor Environment - Various methods, apparatuses and/or articles of manufacture are provided which may be implemented in one or more electronic devices supporting mobile device positioning within an indoor environment. Tiered positioning assistance data (tiered-PAD) corresponding to an indoor environment may be generated and/or distributed. Mobile device positioning and/or navigation capabilities may be based, at least in part, on tiered-PAD corresponding to the indoor environment. Tiered-PAD may be provided to a plurality of mobile devices. A given mobile device may, for example, select applicable portion(s) of tiered-PAD to affect one or more positioning functions and/or the like which may be performed, at least in part, by the mobile device.09-11-2014
20140292580WIDE AREA POSITIONING SYSTEM - Systems and methods are described for determining position of a receiver. The positioning system comprises a transmitter network including transmitters that broadcast positioning signals. The positioning system comprises a remote receiver that acquires and tracks the positioning signals and/or satellite signals. The satellite signals are signals of a satellite-based positioning system. A first mode of the remote receiver uses terminal-based positioning in which the remote receiver computes a position using the positioning signals and/or the satellite signals. The positioning system comprises a server coupled to the remote receiver. A second operating mode of the remote receiver comprises network-based positioning in which the server computes a position of the remote receiver from the positioning signals and/or satellite signals, where the remote receiver receives and transfers to the server the positioning signals and/or satellite signals.10-02-2014
20150015441METHODS FOR PROVIDING POSITIONING SERVICE FOR A WIRELESS DEVICE IN AN WIRELESS NETWORK AND RELATED WIRELESS DEVICES - Methods for providing positioning service for a wireless device within a wireless network are provided. First, at least one positioning signal is received by a first wireless device, wherein, each of the at least one position signal is received from at least one wireless device other than the first wireless device and each indicates the positions of the at least one wireless device other than the first wireless device. The position of the first wireless device is then determined according to the at least one positioning signal received from the at least one wireless device.01-15-2015
20160018505Vessel Communications Systems and Methods - Vessel communications systems and methods are described. According to one aspect, a vessel communications method includes receiving a first communication including first positional data which indicates a location of a first vessel, receiving a second communication including second positional data which indicates a location of a second vessel, using the first and second positional data, identifying a wireless communications range of the first vessel overlapping with a wireless communications range of the second vessel at a moment in time, as a result of the identifying, controlling only one of the first and second vessels to output wireless communications which include both of the first and second positional data.01-21-2016
20160018509ELECTRICALLY SMALL, RANGE AND ANGLE-OF-ARRIVAL RF SENSOR AND ESTIMATION SYSTEM - An RF emitter sensing device is provided comprising an antenna circuit and an estimator configured to output, for one or more incoming signals-of-interest (SoI), either or both of an estimated range to the emitter of each SoI, and estimates for one or more angles corresponding to the 3D angle-of-arrival (AoA) of each SoI, wherein: the antenna circuit has a plurality of ports that each output an output signal containing the one or more SoI, the antenna circuit including one or more multi-port antennas, each multi-port antenna having two or more ports, each multi-port antenna being configured to pick up a combination of one or more E-field signals and one or more H-field signals from each SoI, in a common volume of space.01-21-2016
20160025837Positioning System and Method - A method and system for providing location information to a mobile device includes providing an apparatus with a beacon. The apparatus stores identification information associated with the apparatus, and obtains information describing the correspondence between location information and apparatus identification information to determine the location of the apparatus from the stored identification information. The apparatus transmits the location information to the beacon which transmits the information to the mobile device. In addition, information defining movement of a mobile device through a navigation zone includes an array of beacons that are in communication with each other. The mobile device is provided at a first location in the navigation zone and communicates with a first beacon to indicate its proximity to the first beacon. The device moves through the zone to other locations and communicates with another beacon in proximity to the second location to indicate its proximity to the second beacon.01-28-2016

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