Iso-chronic Type Patents (Class 342/387)
  • Patent number: 10267895
    Abstract: Various technologies for identifying RF emitters in geolocation datasets are described herein. Doppler signatures of RF emitters and geolocation data of objects in a scene are collected simultaneously, then range-rate profiles of the movement of the RF emitters and the objects in the scene are computed. An RF emitter is identified in a geolocation dataset by comparing the motion of the RF emitter with the motion of an object in the scene as described by the respective range-rate profiles.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: April 23, 2019
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Richard M. Naething, Richard C. Ormesher
  • Patent number: 10261169
    Abstract: The present invention provides methods for an active RFID tag target location system that provides for an iterative recalculating of a target location estimate by successively testing receiver TOA and DTOA error measurements and discarding outlier receivers. The present invention works to reduce the erratic effects that multipath channel interference and random noise play in target location systems due to incorrect identification of the main pulse of the transmit signal. In addition to providing for a greater accuracy and consistency in a TOA-based target location system, the method also provides for an opportunity to reduce a transmission bandwidth associate with the TOA transmission by the multiple receivers. The method may be considered a post-processing element, as the determination of TOA and DTOA may require a real-time calculation, where the timing constraints for the ensuing target location estimate may be less severe.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: April 16, 2019
    Assignee: Zebra Technologies Corporation
    Inventors: Edward A. Richley, Belinda Turner, Chang Wang
  • Patent number: 10263813
    Abstract: A signal receiving apparatus includes a phase recovery look, a phase estimation circuit, a phase noise detection circuit, and a bandwidth setting circuit. The phase recovery loop performs a phase recovery process on an input signal according to a bandwidth setting. The phase estimation circuit generates an estimated phase associated with the input signal. The phase noise detection circuit determines a phase noise amount according to the estimated phase. The bandwidth setting circuit calculates an average and a variance of the phase noise amounts, and adjusts the bandwidth setting of the phase recovery loop according to the average and the variance.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: April 16, 2019
    Assignee: MSTAR SEMICONDUCTOR, INC.
    Inventors: Chia-Chun Hung, Ting-Nan Cho, Kai-Wen Cheng, Tai-Lai Tung
  • Patent number: 10244364
    Abstract: A system and related methods for location determination aboard a subject vehicle not equipped with a GNSS-based positioning system receives position signals transmitted by non-satellite atmospheric vehicles and surface objects, which may include precise locations of the transmitting objects or position metrics associated with containment regions within which the transmitting objects should be to a particular certainty level. The received position signals may include ADS-B signals transmitted by proximate aircraft and facilities. The system may determine ownship location via multilateration of received position signals, via processing the received position metrics and corresponding containment regions, or via combining or correlating the two to determine accurate ownship location data of the subject vehicle.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: March 26, 2019
    Assignee: uAvionix Corporation
    Inventor: Paul Beard
  • Patent number: 10234537
    Abstract: A beacon includes a housing, multiple directional radio frequency antennas, a multiplexer, and a signal source that produces a signal output. The directional radio frequency antennas are attached to the housing such that each directional radio frequency antenna points out radially from an axis of the housing in a direction different than the other directional radio frequency antennas. The multiplexer is electrically connected to each of the directional radio frequency antennas and to the signal source. The multiplexer is configured to sequentially conduct the radio signal output from the signal source to each of the directional radio frequency antennas to produce a wireless signal, wherein the signal output is only conducted to one of the directional radio frequency antennas at any given time and includes a unique identifier identifying the antenna it is currently being transmitted from. The beacon may also include electrical hardware for performing time of flight measurements.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: March 19, 2019
    Assignee: Otter Products, LLC
    Inventor: Christopher R. Langlois
  • Patent number: 10230446
    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: March 12, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pengfei Sun, Chen Qian, Bin Yu
  • Patent number: 10203397
    Abstract: Devices, systems, and methods for improving performance in positioning systems. Performance may be improved using disclosed signal processing methods for separating eigenvalues corresponding to noise and eigenvalues corresponding to one or more direct path signal components or multipath signal components.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: February 12, 2019
    Assignee: NextNav, LLC
    Inventors: Andrew Sendonaris, Norman F. Krasner, Jagadish Venkataraman, Chen Meng
  • Patent number: 10171129
    Abstract: Embodiments enable communicating Ultra Wideband (UWB) devices to collaborate by exchanging pulse shape information. The UWB devices use the pulse shape information to improve ranging accuracy. The improved ranging accuracy can be used in complex multipath environments where advanced estimation schemes are used to extract an arriving path for time-of-flight estimation. To determine the pulse shape information to be shared, some embodiments include determining location information of a UWB device and selecting the pulse shape information that satisfies regional aspects. The pulse shape information includes a time-zero index specific to a ranging signal that is used by UWB receivers to establish timestamps time-of-flight calculations. Some embodiments include measuring performance characteristics and selecting different pulse shape information based on the performance characteristics for improved accuracy.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: January 1, 2019
    Assignee: Apple Inc.
    Inventors: Joachim S. Hammerschmidt, Eren Sasoglu
  • Patent number: 10098116
    Abstract: A method, apparatus and computer program product are provided to collect a channel information in conjunction with wireless communications; estimate at least one of a line of sight traffic and a non-line of sight traffic on the channel based on channel information; and select, with a processor, a frequency band, wherein the frequency band includes at least a respective frequency or frequency range and a frequency band or plurality of frequency bands and a bandwidth for the respective frequency or frequency range and time allocation for the frequency or frequency range. The selection is based on the estimated line of sight and non-line of sight traffic, wherein the respective frequency band comprises selecting at least one of a first frequency band or a second frequency band with the first and second frequency bands being different from one another.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: October 9, 2018
    Assignee: Nokia Technologies Oy
    Inventors: Osman Yilmaz, Mikko Uusitalo
  • Patent number: 10031209
    Abstract: A first distance between a first node and a target node is computed based on a first time-of-flight (ToF) of a communication sequence between the first node and the target node. A second distance between a second node and the target node is computed based on a second ToF of the communication sequence between the first node and the target node, as recorded by the second node. A location of the target node is determined based on the first distance and the second distance.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: July 24, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Souvik Sen, Jung Gun Lee, Haiqing Jiang
  • Patent number: 10020596
    Abstract: A base station performs the combination of digital precoding and analog beamforming. Transceiving antenna elements are classified into antenna groups. The analog beamformer includes branches corresponding to the antenna groups. Each branch includes sub-branches, and each sub-branch is connected to one antenna element. In self-calibration, after pilot signals are transmitted from antenna elements belonging to an antenna group and are received by antenna elements belonging to another antenna group, it is identifiable as to which antenna element transmitted each pilot signal. After pilot signals are received by antenna elements belonging to an antenna group, it is identifiable as to which antenna element received each pilot signal.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: July 10, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Anass Benjebbour, Satoshi Suyama
  • Patent number: 9983292
    Abstract: A method for determining an instantaneous phase difference between time bases of at least two location anchors for a desired point in time (t), each of the location anchors having transmitting and receiving access to a joint broadcast transmission medium and a respective time base for measuring time, wherein a first of the location anchors broadcasts a first broadcast message at least twice; the first location anchor and at least a second of the location anchors receive the first broadcast messages; the second location anchor broadcasting a second broadcast message at least twice; and the second location anchor and at least the first location anchor receive the second broadcast messages. The location server calculates the instantaneous phase difference from a determined first and second clock model functions and from a time elapsed between a reference point in time and the desired point in time t.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: May 29, 2018
    Assignee: NANOTRON TECHNOLOGIES GMBH
    Inventors: Rainer Hach, Albrecht Rommel
  • Patent number: 9967845
    Abstract: Synchronizing the local time of beacons using two way time transfer methods and hardware enabling such methods. Certain systems incorporate receive hardware into beacon circuitry used for transmitting signals so that the beacon can transmit RF signals during transmission periods, and can also receive RF signals from other beacons during non-transmission periods. Receive hardware may be incorporated into beacon circuitry such that the beacon receives an incoming signal and passes that incoming signal to a digital pre-distortion linearization module, which can process that received signal. Methods for controlling whether a beacon transmits RF signals or receives RF signals are also discussed, as are methods for using RF signals received from other beacons for synchronization.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: May 8, 2018
    Assignee: NextNav, LLC
    Inventors: Arun Raghupathy, Subramanian S. Meiyappan
  • Patent number: 9958526
    Abstract: Directional characterization of a location of a target device makes use of multiple radio transmissions that are received from the target device. In some examples, each radio transmission is received at a first antenna at a fixed location, and is also received at a second moving antenna. The received transmissions are combined to determine the directional characterization, for example, as a distribution of power as a function of direction. In some examples, the received radio transmissions are processed to determine, for each of a plurality of directions of arrival of the radio transmissions, a most direct direction of arrival, for example, to distinguish a direct path from a reflected path from the target.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: May 1, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Swarun Suresh Kumar, Dina Katabi
  • Patent number: 9955301
    Abstract: An autonomous system with no Customer Network Investment is described, wherein the system is configurable to operate on in a band in addition to the LTE band. Such system allows the definition of hybrid operations to accommodate the positioning reference signals (PRS) of LTE and already existing reference signals. The system can operate with PRS, with other reference signals such as cell-specific reference signals (CRS), or with both signal types. As such, the system provides the advantage of allowing network operator(s) to dynamically choose between modes of operation depending on circumstances, such as network throughput and compatibility.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: April 24, 2018
    Assignee: POLTE CORPORATION
    Inventors: Felix Markhovsky, Truman Prevatt
  • Patent number: 9945930
    Abstract: A method, device, system and use for determining a distance, location and/or orientation including the at least relative determination of a position of at least one object using at least two active anchors. A first signal is emitted by a first of the two anchors and is received at the object and by a second of said two anchors. A phase measurement is performed at said second anchor and wherein a distance determination with respect to said first anchor is performed and/or the distance from said first anchor to said second anchor is known. A second, particularly electromagnetic, signal is emitted from said second anchor, and information on phase measurement and distance between said first and second anchors is made available to a computation unit and at least one phase measurement respectively of said first and second signal is performed at said object and made available to said computation unit.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: April 17, 2018
    Assignee: Lambda:4 Entwicklungen GmbH
    Inventor: Rönne Reimann
  • Patent number: 9907042
    Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of determining a Time Synchronization Function (TSF) based on Fine Timing Measurement (FTM) messages. For example, a wireless station may be configured to determine a first TSF value of a local TSF of the wireless station at arrival of a first FTM message from a responder station; to determine a second TSF value of the local TSF at arrival of a second FTM message from the responder station, the second FTM message including a first Time of Departure (TOD) value of the first FTM message; to process a third FTM message from the responder station, the third FTM message including a second TOD value of the second FTM message; and to apply to the local TSF a TSF correction based at least on the first TSF value, the second TSF value, the first TOD value, and the second TOD.
    Type: Grant
    Filed: December 26, 2015
    Date of Patent: February 27, 2018
    Assignee: INTEL IP CORPORATION
    Inventors: Jonathan Segev, Adrian Stephens
  • Patent number: 9877149
    Abstract: An assisted passive geo-location method and system for determining the location of a wireless device. The method includes passive location techniques in order to assist in determining the location of the wireless device and active techniques in order to assist in the calculation of the relative drift between the clock associated with the wireless device and the clock associated with the measuring station.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: January 23, 2018
    Assignee: SR Technologies, Inc.
    Inventor: Mark Passler
  • Patent number: 9814073
    Abstract: Improvements to signaling procedures for use in physical random access channel (PRACH)-based proximity detection are disclosed. Signaling and signaling processes from a serving base station may trigger a more efficient and reliable transmission of PRACH from related user equipment (UE). At the dynamic power nodes (DPNs) monitoring for such PRACH-based proximity, features are disclosed which establish neighbor lists for more efficient management of detection and proximity activation.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: November 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Alan Barbieri, Hao Xu, Vikas Jain, Durga Prasad Malladi, Awaiz Ahmad Khan, Samatha Kotla, Balwinderpal Sachdev
  • Patent number: 9800284
    Abstract: A method and apparatus is disclosed herein for relative calibration of transceivers in a wireless communication system. In one embodiment, the method comprises transmitting multiple pilots from units in the first group; receiving, in response to the multiple pilots, a first set of pilot observations at each unit in the second group; transmitting a single pilot simultaneously from at least two units in the second group; in response to the single pilot, receiving a second set of pilot observations at each unit in the first group; and using the first and second sets of pilot observations to calibrate each of at least two units in the second group based on a reference array of transceivers in the first group of transceivers.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: October 24, 2017
    Assignee: DOCOMO, INC.
    Inventor: Haralabos Papadopoulos
  • Patent number: 9743369
    Abstract: A handset agent calibration solution is provided that uses the GPS receivers on mobile devices to determine a location of the mobile device to calibrate timing based locating systems. The handset agent can be installed on the mobile device and can upload to an internet server the coordinates captured by the GPS receiver along with the observed time differences. The observed time differences and the location of the mobile device can be used to solve for reference time differences to calibrate unsynchronized macrocells. The reference time difference can be used to solve for the location of other mobile devices if the observed time differences between that mobile device and the macrocells are known. The solution can include receiving measurement reports from many mobile devices to obtain averaged observed time differences at a reference location to achieve more accurate reference time differences.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: August 22, 2017
    Assignee: AT&T MOBILITY II LLC
    Inventors: Jeremy Fix, Francisco Martinez, Sheldon Kent Meredith
  • Patent number: 9736628
    Abstract: An object location tracking system may include an object, a mobile communication device, and a data storage system. The object may include a wireless short range communication system that wirelessly transmits object identification information over a short range that uniquely identifies the object. The mobile communication device may have a location detection system that generates location information indicative of the location of the wireless communication device; a wireless short range communication system that wirelessly receives the object identification information from the object when the object is in close proximity to the mobile communication device; and a wireless data communication system that wirelessly communicates the location information and the object identification information to a data storage system. The data storage system may receive and store the location information and the object identification from the wireless data communication system in the mobile communication device.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: August 15, 2017
    Assignee: Twych Innovation, Inc.
    Inventor: Dan Jordan
  • Patent number: 9709656
    Abstract: A method and devices are disclosed, for tracking a radio beacon from a moving device, while the beacon transmits periodic signals, which the device detects at least at two different locations, and the device provided with information enabling determining the time difference between transmissions of these periodic signals. The method discloses a formula for estimating the angle between the course of the moving device and the beacon: arccos [c*(TDOA12?TDOT12)/baseline12]; wherein the moving device detects signal 1 and signal 2 respectively at location 1 and location 2, the distance between these locations defined as baseline12, TDOA12 is the Time Difference of Arrival of the signals at the two locations, TDOT12 is the time difference between transmission of these signals, and c is the speed of light.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: July 18, 2017
    Inventor: Daniel A. Katz
  • Patent number: 9696407
    Abstract: The present disclosure is directed to a system and method for determining an ownship position of an aircraft. The method includes the steps of receiving data from a plurality of proximate aircraft and examining the data. Next, the method involves selecting a plurality of reference aircraft from the plurality of proximate aircraft, and receiving data from each reference aircraft. The data received from the reference aircraft is then correlated to a common time in order to create a reference frame for calculating the position of the aircraft. The next step of the method is to calculate the ownship position of the aircraft based on the data received from the reference aircraft and the common time. The system includes a receiver, processor, display, and transmitter, which are used to determine the ownship position of an aircraft.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: July 4, 2017
    Assignee: Rockwell Collins, Inc.
    Inventors: William T. Greenleaf, Andrew M. Vesel, Scott F. Bauler, Steve J. Nieuwsma, Richard S. Dove
  • Patent number: 9698841
    Abstract: Systems, methods, apparatuses, and computer readable media are disclosed for associating a radio frequency identification tag with a participant. In one embodiment, a method is provided for associating an unassociated RF location tag with a participant. The method may include determining an unassociated RF location tag to be associated with the participant, receiving sensor derived data from one or more sensors, determining an identity of the particular participant using the sensor derived data, and associating the identity of the particular participant with the unassociated RF location tag.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: July 4, 2017
    Assignee: ZIH Corp.
    Inventors: Rodrigo Alonso, Belinda Turner, Aitan Ameti, David Senerchia
  • Patent number: 9693187
    Abstract: A passive geo-location method for determining the location of a wireless device. The method includes receiving, by a measuring receiver at a first position, a first beacon transmitted to the measuring receiver by the wireless device, and receiving, by the measuring receiver at a second position, a second beacon transmitted to the measuring receiver by the wireless device. When the first position differs from the second position by less than a predetermined distance, the method further includes determining a relative drift between a clock associated with the wireless device and a clock associated with the measuring receiver, and determining a location of the wireless device based at least on the determined relative drift.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: June 27, 2017
    Assignee: SR TECHNOLOGIES, INC.
    Inventor: Mark Passler
  • Patent number: 9658309
    Abstract: Systems and methods for locating an object are disclosed herein. The locator system includes a plurality of reference units and a processor in communication with the reference units. The reference units are positioned about a region in which a mobile unit is located, and each reference unit includes a transceiver for transmitting and receiving a transaction-based location signal to and from the mobile unit. The processor is configured for estimating time offsets between the mobile unit and reference units and aligning the transaction-based location signals from the reference units by removing the time offsets. The processor is further configured for collectively processing data representative of the aligned location signals based on a plurality of potential locations to identify at least one of the potential locations as a likely mobile unit location.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: May 23, 2017
    Inventors: Vincent Thomas Amendolare, R. James Duckworth, David Cyganski
  • Patent number: 9651648
    Abstract: Geolocation is performed by receiving, at a plurality of non-earthbound platforms each moving in a known manner within a spatial coordinate system, a radio frequency (RF) signal transmitted from a transmitter at an unknown location on earth within the spatial coordinate system. For each of the platforms, a phase change of the received frequency carrier is measured over the same duration of time. The measured phase changes are combined to determine the transmitter location.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: May 16, 2017
    Assignee: Sandia Corporation
    Inventors: John J. Mason, Louis Romero
  • Patent number: 9654927
    Abstract: An example of the invention provides a motion detection method for a portable device. The method includes steps of: generating a first cell location data at a first time point according to signals transmitted by a plurality of base stations; generating a second cell location data at a second time point according to signals transmitted by a plurality of base stations, wherein the first time point and the second time point are two successive time points, and the first cell location data and the second cell location data includes names or identification data of base stations detected by the portable device; determining whether the portable device is moved according to the first cell location data and the second cell location data.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: May 16, 2017
    Assignee: AthenTek Incorporated
    Inventors: Haoren Kao, Chia Cheng Lee, Chun-Nan Chen
  • Patent number: 9655074
    Abstract: Services based on radio frequencies like GPS, RFID, GSM, CDMA, Wi-Fi or Bluetooth triangulation allows us to know, with some level of confidence, the position of a mobile device. However, those methods rely on special software and/or hardware. They also fail inside buildings since they cannot provide fine granulated values with a high level of accuracy. Each radio frequency device (mobile or not) emits a signal with a given strength and identification (Mac address or similar) to the air. The signal is captured by our nodes (at least 2 of the nodes), that measures the strength of the signal and therefore calculate the distance estimation. Since the signal is affected by electromagnetic noise, number of people in the building, or even temperature, the suggested system self corrects the values by knowing the distance between the nodes and measuring the signal strength. This gives to the system a very low error margin of about 1%.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: May 16, 2017
    Assignee: MOVVO, S.A.
    Inventor: Roberto Ugo Di Cera Colazingari
  • Patent number: 9629119
    Abstract: Techniques are presented herein to coordinate ranging exchanges between base stations in order to enable any number of wireless devices in the vicinity of the base stations to obtain signals associated with ranging exchanges between base stations, time-of-departure report messages transmitted by the base stations to each other and time-of-arrival report messages transmitted by the base stations to each other, for use in computing the location of the wireless devices. Based on the multi-channel time-of-arrivals computed for the wireless device with respect to each base station, the multi-channel time-of-arrivals contained in the time-of-arrival report messages transmitted between base stations and the known locations of the base stations, a physical location is computed for the wireless device.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: April 18, 2017
    Assignee: Cisco Technology, Inc.
    Inventor: Brian D. Hart
  • Patent number: 9625566
    Abstract: A direct geolocation approach for estimating a location of a stationary emitter located on the Earth surface is provided. The approach uses data collected during a plurality of time periods including Time Difference of Arrival (TDOA) and Frequency Difference of Arrival (FDOA) measurements of a radar pulse sent from the emitter, and altitude measurements of an aircraft above the Earth surface. The approach includes estimating a location of the emitter for each of the time periods based on the TDOA, FDOA, and altitude measurements associated with a respective time period. The estimated location of the stationary emitter includes possible longitude and latitude of the emitter. The approach further includes averaging the estimated locations associated with the plurality of time periods to form an averaged estimated location of the emitter. A convenient example of the approach computes the location of the emitter based on the averaged estimated location.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: April 18, 2017
    Assignee: Raytheon Company
    Inventor: John T. Broad
  • Patent number: 9568588
    Abstract: A system and method for using a receiving wireless device to passively detect target wireless devices or access points, quantify signal strengths of the target wireless devices or access points, and accurately identify a position for, or geolocate, the target wireless devices or access points. A position of the receiving wireless device is determined and correlated with a signal strength received from a target wireless device taken from multiple positions of the receiving wireless device. A trilateration algorithm is applied to the correlated date to obtain coarse geographic positions for the target wireless device, then a filtering algorithm is applied to obtain an accurate position for the target wireless device, which is in turn displayed to a user of the receiving wireless device.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: February 14, 2017
    Assignee: Lockheed Martin Corporation
    Inventors: Eric B. Jones, Kenneth R. Good, Kyle J. Roach
  • Patent number: 9565542
    Abstract: The accuracy of a location determination mechanism may be determined as compared to another location determination mechanism. Dialing 9-1-1 on a mobile communication device may trigger location determination of the device via a GPS-based mechanism. The location information may be time stamped. The location and time information may be provided to a network. The network may determine the location of the device via network infrastructure. The network may time stamp this second set of locations. The determination of the locations of the device via GPS and via the network infrastructure may occur approximately during the same time frame. The first set of locations and the second set of locations may be time aligned, and the differences between the two sets may be utilized to determine the accuracy of network-infrastructure-based location determination mechanism as compared to the GPS-based location determination mechanism.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: February 7, 2017
    Assignees: AT&T Mobility II LLC, AT&T Intellectual Property I, L.P.
    Inventors: Sheldon Kent Meredith, Rick Tipton, William Cottrill
  • Patent number: 9523984
    Abstract: Methods and systems for determining instructions for pulling over an autonomous vehicle are described. An example method may involve identifying a region of a road ahead of the autonomous vehicle based on lane boundaries of the road, one or more road boundaries indicating an edge of the road, and a size of the autonomous vehicle. The method may also involve determining a braking profile for reducing the speed of the autonomous vehicle based on the region and a speed of the autonomous vehicle. The method may also involve determining, based on the braking profile, a trajectory such that the autonomous vehicle will travel within the region while reducing the speed of the autonomous vehicle. The method may further involve determining instructions for pulling over and stopping the autonomous vehicle in the region in accordance with the determined trajectory and storing the instructions in a memory accessible by a computing device.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: December 20, 2016
    Assignee: Google Inc.
    Inventors: Joshua Seth Herbach, Nathaniel Fairfield
  • Patent number: 9519046
    Abstract: Systems and methods for determining signal source location in wireless local area networks are disclosed. An example method includes receiving, from a first signal reader, a first time-of-arrival measurement for a first radio frequency (RF) signal generated by a first wireless local area network (WLAN) signal source located at a first known location, the first time-of-arrival measurement being relative to a first clock of the first signal reader; receiving, from a second signal reader, a second time-of-arrival measurement for the RF signal, the second time-of-arrival measurement being relative to a second clock of the second signal reader, wherein the first clock is not synchronized with the second clock; defining a first time relationship between the first clock and a system time based on the first time-of-arrival measurement; and defining a second time relationship between the second clock and the system time based on the second time-of-arrival measurement.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: December 13, 2016
    Assignee: ZIH Corp.
    Inventor: Robert W. Boyd
  • Patent number: 9465096
    Abstract: A determining method includes obtaining by each monitoring apparatus among plural monitoring apparatuses disposed encompassing a given area having plural wireless communications apparatuses, hop count information that indicates a hop count of a wireless signal transmitted by one wireless communications apparatus among the wireless communications apparatuses and received by the monitoring apparatus via multi-hop communication by the wireless communications apparatuses; calculating by each monitoring apparatus, an estimated line that represents candidates of a position of the one wireless communications apparatus, the estimated line being calculated from an estimated distance between the monitoring apparatus and the one wireless communications apparatus, based on the hop count; correcting by each monitoring apparatus, the calculated estimated line based on information indicating a node-less area in which no wireless communications apparatus of the given area is present; and determining the position of the one w
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: October 11, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Toshiya Otomo, Koichiro Yamashita, Takahisa Suzuki, Hiromasa Yamauchi, Koji Kurihara, Yuta Teranishi
  • Patent number: 9465892
    Abstract: In accordance with embodiments of the present invention, a method for associating metadata with a media object is provided. The method provides the ability to tag, or bookmark, a point in time for future use. The method includes receiving the metadata, an associated time condition, and an associated user identification. The method further includes storing at least the time condition. The at least stored time condition is used, at least in part, for associating the metadata with the media object. The media object is then provided to the user. In some embodiments the media object is not available for association with the metadata at the time the metadata is received. In other embodiments, the media object is provided by an external application.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: October 11, 2016
    Assignee: Yahoo! Inc.
    Inventor: David Ayman Shamma
  • Patent number: 9438454
    Abstract: Various embodiments associated with synchronization of signal editions from multiple sensors are described. A plurality of sensors can be deployed in an environment. Different copies of a desired signal can be present in the environment and there can be a desire to identify this signal even if the signal is unknown (and a demodulation scheme of the desired signal is not known). The plurality of sensors can sense weak editions of the desired signal and transfer those signals to a master sensor or to a separate location, such as a fusion center. The weak editions may be asynchronous due to the editions being captured at different locations, different channels, different devices, etc. At the master sensor or separate location, the weak editions can be post-synchronized together and then fused together into a strong signal. From the strong signal, a demodulation scheme can be determined and the signal can be demodulated.
    Type: Grant
    Filed: March 3, 2013
    Date of Patent: September 6, 2016
    Assignee: The Government of the United States, as represented by the Secretary of the Army
    Inventor: Wei Su
  • Patent number: 9439046
    Abstract: A radio apparatus transmits a radio signal including identification information for identifying the radio apparatus. A reception terminal receives the radio signal transmitted form the radio apparatus. A positional information management server obtains radio information in which the identification information included in the radio signal and radio field intensity of the radio signal are associated with each other and determines a position of the reception terminal using the obtained radio information. The radio apparatus includes an antenna that transmits the radio signal having directivity toward a floor.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: September 6, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takahiro Yamaguchi, Toru Utsuki, Yasunori Sato
  • Patent number: 9424583
    Abstract: Techniques for displaying virtual objects on devices in differential situations are provided. Augmented reality authoring ensures that users have a consistent experience with virtual objects, including augmented reality images, by delivering the same versions of the virtual objects to devices that are close in terms, for instance, of at least distance and/or time. Devices that are not sufficiently close may receive different versions of the virtual object, thus ensuring that the users of devices that are sufficiently near each other do not experience different versions of the virtual object.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: August 23, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Ezekiel Kruglick
  • Patent number: 9415745
    Abstract: A high intensity light source blocking system for a vehicle operated by a crew member within a cockpit includes an crew member position or eye-position detection system, a transparent dynamic-darkening display covering a window in the crew member cockpit, and a scene imager configured to detect a presence of a high intensity light source and an emanation direction relative to the crew member cockpit. A computing device is connected to the position or eye-position detection system, the transparent dynamic-darkening display and the scene imager, and controls the darkening of a portion of the dynamic-darkening display upon the occurrence of either the high intensity light source having an intensity value equal to or greater than a predetermined threshold, or the crew member position or eye-position being subject to either a direct portion of the high intensity light source or a substantial reflection thereof off a surface within the crew member cockpit.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: August 16, 2016
    Assignee: The Boeing Company
    Inventors: Mark Joseph Clemen, Jr., Alan F. Stewart, Keith John Davis, Mark Stewart Wilenski
  • Patent number: 9404998
    Abstract: A computerized device for use with an object location system and method thereof is provided. The computerized device includes at least one processor in communication with a memory device, the memory device storing a quantity of programmable code having a plurality of processor-executable instructions. A communication element is connected between the processor and at least one monitoring unit. The at least one monitoring unit is positioned remote from the computerized device and a locating circuit substantially secured to an object intermittently communicates an omnidirectional signal to the at least one monitoring unit. A calculator is in communication with the processor. The calculator directs the processor to determine a duration of transmission time of the omnidirectional signal communicated from the locating circuit to the at least one monitoring unit directs the processor to calculate a location of the locating circuit using the determined duration of transmission time of the omnidirectional signal.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: August 2, 2016
    Assignee: Secure Care Products, LLC
    Inventors: Albert Larose, Doug Richard, Matthew Cammack, Christopher D. Stevens, Mike Singer, Sam Corliss, Vijaya Kodali, Ray Scott
  • Patent number: 9386550
    Abstract: Systems and methods are described synchronizing communications frames and their respective time slots for satellite communications architectures having multiple satellites in the same orbital slot in such a way that addresses inter-satellite inter-beam interference. In some embodiments, the first and second satellites communicate with a respective number of ground terminals (e.g., gateway and user terminals) according to first and second satellite time slots, respectively. The satellites maintain relative positions in their orbital slot to manifest a maximum path delay difference between first and second path delays, the first path delay being between the first ground terminals and the first satellite, and the second path delay being between the first ground terminals and the second satellite. A synchronization system can offset the first satellite time slots from the second satellite time slots as a function of the maximum path delay difference.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 5, 2016
    Assignee: VIASAT INC.
    Inventor: Donald W. Becker
  • Patent number: 9372252
    Abstract: A system and method for locating an object is provided. A locating circuit substantially secured to the object. A plurality of monitoring units are positioned remotely from the locating circuit, each positioned in a different location, wherein at least a portion of the plurality of monitoring units are positioned in an outdoor environment. An omnidirectional signal is intermittently communicated between the locating circuit and the plurality of monitoring units. A calculator is in communication with each of the plurality of monitoring units. The calculator determines a duration of transmission time of the omnidirectional signal for each of the plurality of monitoring units, and the locating circuit. The calculator calculates a location of the locating circuit using the determined duration of transmission time for each of the plurality of monitoring units and the locating circuit.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: June 21, 2016
    Assignee: Secure Care Products, LLC
    Inventors: Albert Larose, Doug Richard, Matthew Cammack, Christopher D. Stevens, Mike Singer, Sam Corliss, Vijaya Kodali, Ray Scott
  • Patent number: 9372646
    Abstract: A device registration program causes a computer in a mobile terminal to function as a device detecting section, a designated device discriminating section, a display control section, and a device registration section. The device detecting section detects any devices communicable with the mobile terminal. The designated device discriminating section discriminates a device designated according to an orientation of the mobile terminal on the basis of location information and orientation information of the mobile terminal and location information of each of the detected devices. The display control section causes display of a list of icons indicating models of the detected devices and display of an icon of the discriminated device in a different manner than the other icons in the list. The device registration section registers the discriminated device.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: June 21, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Kohei Konishi
  • Patent number: 9338609
    Abstract: A system that combines an indoor positioning system (IPS), virtual network computing (VNC), and at least one mobile processing device, e.g., a tablet computer. The IPS determines the location of the mobile processing device, from which information a most proximate instrument, device, and/or system can be determined. Once the most proximate instrument, device, and/or system is determined, the mobile processing device is adapted to launch a remote desktop session with the instrument, device, and/or system via the VNC. Advantageously, the launched remote desktop session automatically authenticates with the software of the instrument, device, and/or system and, moreover, displays data from the instrument, device, and/or system on the at least one mobile processing device in a format with which an operator is most familiar.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: May 10, 2016
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventor: Michael W. Heydlauf
  • Patent number: 9338626
    Abstract: The accuracy of a location determination mechanism may be determined as compared to another location determination mechanism. Dialing 9-1-1 on a mobile communication device may trigger location determination of the device via a GPS-based mechanism. The location information may be time stamped. The location and time information may be provided to a network. The network may determine the location of the device via network infrastructure. The network may time stamp this second set of locations. The determination of the locations of the device via GPS and via the network infrastructure may occur approximately during the same time frame. The first set of locations and the second set of locations may be time aligned, and the differences between the two sets may be utilized to determine the accuracy of network-infrastructure-based location determination mechanism as compared to the GPS-based location determination mechanism.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: May 10, 2016
    Assignees: AT&T Intellectual Property I, L.P., AT&T Mobility II LLC
    Inventors: Sheldon Kent Meredith, Rick Tipton, William Cottrill
  • Patent number: 9319840
    Abstract: A method for estimating the distance (d) of a receiver (102) from a radio transmitter (101) includes the steps of: receiving (602) radio signals (103, 701) irradiated by the transmitter (101), which include components from which at least three tones (1,2,3,4) are extracted, each having a different frequency; measuring (606) a first phase difference (??21) between first two tones (1, 2) of the at least three tones, whose frequencies (f1, f2) have a first spacing, and measuring a second phase difference (??43) between second two tones (3, 4) of the at least three tones, whose frequencies (f3, f4) have a second spacing, wherein one of the first spacing or second spacing is greater than the other; estimating (607, 611, 613) the distance (d) on the basis of the first phase difference (??21) and the second phase difference (??43).
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: April 19, 2016
    Assignee: SISVEL TECHNOLOGY S.R.L.
    Inventor: Pietro Porzio Giusto
  • Patent number: 9306727
    Abstract: A system and method of synchronizing clocks within a system having a plurality of base stations, wherein each base station includes a frequency locked clock. A fast moving emitter transmits pulses that are received at each base station. A time of arrival for each pulse received by each base station is recorded and the recorded times of arrival are communicated to at least one of the other base stations. The clocks are synchronized as a function of the recorded times of arrival received from each base station.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: April 5, 2016
    Assignee: Raytheon Company
    Inventors: Steven R. Wilkinson, Ulvi Yurtsever