Receivers (ipc) Patents (Class 342/357.51)
  • Patent number: 10178523
    Abstract: A position detection system is provided which is capable of inhibiting an increase in system costs and improving accuracy of detecting a position of a terminal. In the position detection system, a first terminal measures radio waves from a wireless connection device or a second terminal, and transmits a measurement result to a position detection server through the wireless connection device.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: January 8, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Issei Ikezaki, Takatsugu Ito, Taisuke Konishi
  • Patent number: 10110583
    Abstract: Some embodiments provide an account-access recovery method that receives a request to recover access to an account. The method also assesses recent usage of a device that is associated with the account. The method also, based on the assessment, selects a recovery process from a group of different recovery processes for regaining access to the account. The method also provides the selected recovery process to a party that is requesting the access recovery.
    Type: Grant
    Filed: August 7, 2016
    Date of Patent: October 23, 2018
    Assignee: APPLE INC.
    Inventors: Ivan Krstic, James Wilson, Eric Daniel Friedman, Selvarajan Subramaniam, Patrice O. Gautier, John Patrick Gates, Ramarathnam Santhanagopal, Prabhakaran Vaidyanathaswami, Sudhakar Mambakkam, Raghunandan Pai, Karthik Narayanan
  • Patent number: 10085289
    Abstract: A base station may obtain channel usage information identifying usage of one or more unlicensed radio frequency (RF) spectrum bands. The base station may select a selected band, of the one or more unlicensed RF spectrum bands, based on the channel usage information. The base station may select one or more RF channels, of multiple RF channels included in the selected band, based on a congestion value of the selected band. The congestion value may be determined based on values of the channel usage information corresponding to the selected band. The selected RF channel may include an impaired RF channel that may not permit full bandwidth utilization due to constraints. The base station may communicate with user equipment via the one or more RF channels of the selected band.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: September 25, 2018
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Sergio Aguirre, Rakesh Chandwani
  • Patent number: 9535160
    Abstract: A positioning system comprises an onboard GNSS satellite receiver in a mobile element belonging to a user which estimates the position of said mobile element at various instants, a first processing module determining a consistency indicator by combining the estimated positions and data provided by secondary information sources, using a dynamic model of movement of the mobile elements to be positioned. The indicator is determined by comparing a speed, acceleration, gyration triplet derived from direction and velocity measurements taken by the mobile element, to a dynamic model of movement of an object, vehicle, person or animal to be positioned. The system comprises a consolidation module containing means storing the positions estimated at various instants, a digital filter to obtain a filtered position from the stored positions of a user, the consistency indicator calculated from filtered positions; and detection means determining from the consistency indicator whether the estimated positions are falsified.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: January 3, 2017
    Assignee: Thales
    Inventor: Yves Bardout
  • Patent number: 9276689
    Abstract: Apparatus for providing timing information, the apparatus comprising: a primary reference time clock (PRTC) that provides a reference time of day (ToD) and a reference frequency; a packet master clock that receives the ToD and reference frequency and is configured to distribute timing to a slave clock in accordance with a timing over packet procedure responsive to the ToD and the reference frequency; and a housing that houses the PRTC and packet master clock which may be plugged into a conventional small form factor (SFP) compliant cage to connect the packet master clock to a packet switched network (PSN).
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: March 1, 2016
    Assignee: RAD DATA COMMUNICATIONS LTD.
    Inventors: Alon Geva, Yaakov Stein
  • Patent number: 9250097
    Abstract: A navigation system includes a Global Positioning System (GPS) enabled wireless phone and a GPS navigation system. The GPS enabled wireless phone includes a GPS receiver, a communications interface, and processing circuitry coupled to the GPS receiver and to the communications interface. The GPS navigation system includes a GPS receiver, a communications interface operable to communicatively couple to the communications interface of the GPS enabled wireless phone, and processing circuitry coupled to the GPS receiver and to the communications interface. The processing circuitry of the GPS navigation system is operable to establish device pairing with the GPS enabled wireless phone and to exchange GPS information and other information with the GPS enabled wireless phone via the secure link.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: February 2, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: James D. Bennett, Jeyhan Karaoguz, Jeffrey D. Wheeler
  • Patent number: 9069599
    Abstract: In embodiments of the present invention improved capabilities are described for a virtualization environment adapted for development and deployment of at least one software workload, the virtualization environment having a metamodel framework that allows the association of a policy to the software workload upon development of the workload that is applied upon deployment of the software workload. This allows a developer to define a security zone and to apply at least one type of security policy with respect to the security zone including the type of security zone policy in the metamodel framework such that the type of security zone policy can be associated with the software workload upon development of the software workload, and if the type of security zone policy is associated with the software workload, automatically applying the security policy to the software workload when the software workload is deployed within the security zone.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: June 30, 2015
    Assignee: ServiceMesh, Inc.
    Inventors: Frank R. Martinez, Eric Pulier
  • Publication number: 20150145723
    Abstract: A system and method are provided for determining a distribution of a position error of a receiver of localization signals, the signals being sent by at least one satellite. The system includes the receiver, one position of which is known as first position and is affected by an error, known as first error, having a distribution, known as first distribution, a first device for determining positions of the satellite(s), known as second positions, a device for transmitting the second position of the first determination device to the receiver, and the first distribution is defined by at least one first cumulant, of higher-than-second order.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 28, 2015
    Inventor: Mathias VAN DEN BOSSCHE
  • Publication number: 20150145725
    Abstract: A navigation device includes an antenna to receive a satellite signal, a control unit to control provision of the satellite signal, an amplifier circuit for amplification of the satellite signal, and a positioning unit to position the navigation device based upon the satellite signal. When the navigation device has been successfully positioned, the control unit disables the amplifier circuit, and provides the satellite signal to the positioning unit for position calculation.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 28, 2015
    Inventor: Kuan-Hung Yeh
  • Publication number: 20150138015
    Abstract: An object is to provide in a positioning device of a moving body such as a vehicle, a technique which can modify a built-in clock error of a moving body to increase accuracy of a velocity. The positioning device includes a built-in clock error estimating unit which estimates a built-in clock error of the vehicle as a built-in clock error based on a difference between a delta range and a calculated range rate, and a range rate estimating unit which estimates a vehicle stop range rate based on position and velocity of GPS satellite based on transmission signal and a vehicle position, and modifies a calculated range rate, based on the built-in clock error. Further, the positioning device includes an own vehicle velocity calculating unit which calculates own vehicle velocities in three axial directions which form an orthogonal coordinate system, based on a navigation matrix, the vehicle stop range rate and the modified calculated range rate.
    Type: Application
    Filed: June 27, 2012
    Publication date: May 21, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tadatomi Ishigami, Atsushi Maeda, Masatoshi Fujii, Hirokazu Chiyonobu, Kohei Fujimoto
  • Publication number: 20150133171
    Abstract: A method, device and circuit for determining a position of a mobile cellular communication device is disclosed. A pseudolites positioning signal is received in a first frequency band at an antenna of the mobile cellular communication device. The pseudolites signal is converted from the first frequency band to a Global Navigation Satellite System (GNSS) frequency band to obtain a corresponding positioning signal in the GNSS frequency band. The converted positioning signal is delivered to a GNSS chipset of the mobile cellular communication device. The GNSS chipset determines the position of the mobile cellular communication device using the converted positioning signal.
    Type: Application
    Filed: November 12, 2013
    Publication date: May 14, 2015
    Applicant: BLACKBERRY LIMITED
    Inventors: Mohammad Shafiq BANI HANI, Arnold SHEYNMAN, Bruce Allen BERNHARDT
  • Publication number: 20150123845
    Abstract: A GPS positioning method for a mobile terminal, and a mobile terminal are provided. The method includes: after GPS positioning is started, acquiring a first cell identifier of a first cell in which the mobile terminal is located; acquiring, according to the first cell identifier, first latitude and longitude information corresponding to the first cell identifier from a correspondence table stored on the mobile terminal, where the correspondence table includes a cell identifier and latitude and longitude information corresponding to the cell identifier; and with reference to the first latitude and longitude information, and time information and ephemeris information that are acquired in advance, performing GPS positioning on the mobile terminal by using a GPS receiver of the mobile terminal.
    Type: Application
    Filed: December 12, 2014
    Publication date: May 7, 2015
    Inventors: Tongbo Wang, Wenfeng Yao, Gaopeng Li
  • Publication number: 20150123844
    Abstract: Disclosed are methods, systems and/or devices to calibrate a network time by acquisition of satellite positioning system (SPS) signals and different instances of time, and time-tagging SPS times according to the network time. In particular, the network time may be calibrated based, at least in part, on a first difference between first and second SPS times obtained at two SPS position fixes and a second difference between corresponding first and second time stamps.
    Type: Application
    Filed: September 30, 2014
    Publication date: May 7, 2015
    Inventors: Dominic Gerard Farmer, Jie Wu, William James Morrison, Tong Lin, Krishnaranjan S. Rao
  • Publication number: 20150116146
    Abstract: Systems and methods are provided for monitoring carrier phase anomalies in a range finding system. A relative carrier phase between first and second antennas is predicted as a function of a relative position between the two antennas. A relative carrier phase between the first and second receivers is measured based upon at least one transmitted signal received at each of the first and second antennas. An anomaly detection metric is calculated as a difference between the measured relative carrier phase and the predicted relative carrier phase. It is then determined if an anomaly is present according to the anomaly detection metric.
    Type: Application
    Filed: October 29, 2013
    Publication date: April 30, 2015
    Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventor: JEFFREY DICKMAN
  • Publication number: 20150102961
    Abstract: An electronic device includes: a satellite signal receiving section that receives a satellite signal with which positioning information is overlapped from a positioning satellite; a reception control section that controls driving of the satellite signal receiving section; and a detecting section that detects a state change of the electronic device, in which the reception control section allows the satellite signal receiving section to enter a driving state when the detecting section detects the state change to receive the satellite signal. According to this electronic device, it is possible to reduce a TTFF at the positioning start, and to reduce power consumption in the satellite signal reception.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 16, 2015
    Inventors: Takuya TOMII, Reiko Sato
  • Publication number: 20150097724
    Abstract: The present invention relates to processing information generated by GNSS receivers received signals such as GPS, GLONASS, etc. GNSS receivers can determine their position in space. The receivers are capable of determining both coordinates and velocity of their spatial movement. When a receiver is used in any machine control systems, velocity vector heading (in other words, velocity vector orientation) should be determined along with velocity vector's absolute value. Angle, determining velocity vector orientation, is calculated based on velocity vector projections which are computed in navigation receivers. The accuracy of velocity vector orientation calculated based on velocity vector projections strongly enough depends on velocity vector's absolute value. To enhance the accuracy, a method of smoothing primary estimates of velocity vector orientation angles using a modified Kalman filter has been proposed.
    Type: Application
    Filed: July 8, 2014
    Publication date: April 9, 2015
    Inventors: Vladimir V. Veitsel, Dmitry P. Nikitin, Andrey V. Plenkin, Andrey V. Veitsel, Mark I. Zhodzishsky, Victor A. Prasolov
  • Publication number: 20150097723
    Abstract: A system for sharing data between aircraft including a GPS unit for establishing a first aircraft's location and altitude from a network of global satellites and an automatic dependent surveillance broadcast (ADS-B) unit broadcasting a first aircraft's identification as well as it's location and altitude. The system also includes a mechanism for measuring the wind speed and turbulence at the location of the first aircraft and for broadcasting that information to other aircraft in the area. A second aircraft as well as other aircraft also include an ADS-B receiver for receiving such information.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 9, 2015
    Inventor: Erik Jason Bauman
  • Publication number: 20150097728
    Abstract: Control and feature systems for processing signals from a satellite positioning system include an expert system receiver manager; a joint detection, carrier centring and bit sync acquisition subsystem; peak detection; a multi-dimensional measurement interpolation subsystem; a system for mode switching between a navigational signal; and power control module for receiver.
    Type: Application
    Filed: December 12, 2014
    Publication date: April 9, 2015
    Inventors: Mangesh Chansarkar, Sundar Raman, Charles P. Norman, Paul A. Underbrink, Henry D. Falk, James Brown, Robert Harvey, Peter Michali, William Higgins, Gensheng Zhang, Qingwen Zhang
  • Publication number: 20150097725
    Abstract: A method for reducing the positioning time of a GPS receiver is disclosed. In response to a request from a user function for positioning data a GPS management section instructs a device control section to lower the functions of a group of components. The lowering of the functions of the components reduces the noise level. The GPS management section operates the GPS receiver. The GPS receiver executes an acquisition process in an environment with a low noise level. After completion of the acquisition process, the functions of the component are restored.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 9, 2015
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: YOSHI NISHIOKA, TAKAFUMI ONODERA, MASAHIDE TAMURA
  • Publication number: 20150091750
    Abstract: Devices and methods are directed to estimating a position of the device/user using a delta range measurement (DRM) module to measure a range difference between first and second range values for first and second time instants based on, e.g., carrier phase measurements. The time period between the first and second time instants may be greater than a periodic interval at which a new phase value is sampled. This architecture of the DRM module provides extended delta ranges values which also overlap in time, enabling a combination of improved dilution of precision and keeping fast generation of delta range values suitable for use in continuous filtering. A filter, e.g., a Kalman filter, may be used compute current estimates of two positions, or a combination of a position and a position difference, of the device based at least on the range difference and a priori estimate(s) of the position(s) of the device.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Inventor: Tomer Dahan
  • Publication number: 20150084813
    Abstract: A system comprises a processing server programmed to determine which GPS satellites are currently available for use within a field of view of the processing server. The processing server is programmed to transmit to a terrestrial beacon information about a GPS channel of a GPS satellite which is not currently within the field of view of the processing server. The terrestrial beacon is configured to broadcast a navigation signal useful to determine location using the identified GPS channel. The processing server transmits the ephemeris of the terrestrial beacon to a GPS receiver. The receiver receives the signal from the beacon, and uses the ephemeris received from the processing server for calculating the receiver's location.
    Type: Application
    Filed: April 12, 2013
    Publication date: March 26, 2015
    Inventor: Michael Braiman
  • Publication number: 20150077282
    Abstract: A combination of active reader tags and ultra wideband (UWB) radar systems provide real-time monitoring of first responders, with identification of each team member using active tags, and detection of victims or other subjects using motion or breathing detection, in a field of operations such as a building affected by fire or hazardous material or search and rescue mission area. Initially, a cluster of miniaturized radars (sensors) act in a static mode of operation, gathering static radar information used to depict a constructed layout of the premises. The cluster of radars then operate in a dynamic mode that detects motion or breathing of multiple subjects inside the field of operations. With dual mode operation the system can read the active tags identification, and by triangulation, display the position of each first responder with its identification and positions of subjects on a composite image of the constructed layout.
    Type: Application
    Filed: October 31, 2013
    Publication date: March 19, 2015
    Inventor: Farrokh Mohamadi
  • Publication number: 20150077288
    Abstract: A method and a system for reducing time to first fix (TTFF) in a satellite navigation receiver (SNR) includes constructing an integrated satellite constellation system (ISCS) for transmitting navigation signals over a combination of a first carrier frequency, a second carrier frequency, and a third carrier frequency. The ISCS includes a predetermined number of geosynchronous satellites positioned at first predetermined geographic coordinates in a geosynchronous orbit and a predetermined number of geostationary satellites positioned at second predetermined geographic coordinates in a geostationary orbit. The ISCS transmits navigation data to the SNR over the combination of the first carrier frequency, the second carrier frequency, and the third carrier frequency in reduced time, thereby reducing the TTFF in the SNR. The method and the system also reduce TTFF in a hot start mode and a snap start mode of the SNR by utilizing the third carrier frequency as a data channel.
    Type: Application
    Filed: December 11, 2013
    Publication date: March 19, 2015
    Applicant: ACCORD SOFTWARE & SYSTEMS PVT LTD
    Inventor: Vyasaraj Guru Rao
  • Publication number: 20150070211
    Abstract: Method, system, and device are provided for position determination with the use of predicted ephemeris to reduce the time-to-first-fix. The method includes: in a device, receiving broadcast orbit data and clock states from a plurality of satellites to determine first assistance data for the plurality of satellites, and numerically predicting first ephemeris for the plurality of satellites using the first assistance data. The method also includes: in a server system, receiving precise orbit data and accurate satellite clock states from a global GNSS service network to determine second assistance data; in a device, receiving the second assistance data and numerically predicting second ephemeris using the second assistance data.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 12, 2015
    Inventors: Jian Cheng, Zhike Jia, Zhicui Lu, Jian Chen
  • Publication number: 20150054682
    Abstract: Systems, methods and apparatus are provided through which in some implementations a geographic location of a beacon is determined by a component integrated within or in close proximity to the beacon and the geographic location is communicated to an external network using a wireless communications channel between the beacon and the external network.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Applicant: Times Three Wireless Inc.
    Inventors: Michael Hryciuk, Andrew Borsodi
  • Publication number: 20150054683
    Abstract: Systems, methods and apparatus are provided through which in some implementations a geographic location of a beacon is determined by a component integrated within or in close proximity to the beacon and the geographic location is communicated to an external network using a wireless communications channel between the beacon and the external network.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Applicant: Times Three Wireless Inc.
    Inventors: Michael Hryciuk, Andrew Borsodi
  • Publication number: 20150054680
    Abstract: A method, apparatus, and system for reducing memory and communication bandwidth requirements for digital signal samples in Global Navigational Satellite System (GNSS) receivers using an adaptive compression/decompression process are described.
    Type: Application
    Filed: November 13, 2013
    Publication date: February 26, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Gary LENNEN
  • Publication number: 20150054684
    Abstract: An information processing apparatus capable of detecting an emergency signal includes a first obtainment unit configured to obtain positional information representing a current position of the information processing apparatus; a selection unit configured to select one of a plurality of broadcast stations using the positional information obtained by the first obtainment unit; a reception unit configured to receive a radio wave signal at a frequency of the broadcast station selected by the selection unit; and a first output unit configured to output an audio signal obtained by demodulating the radio wave signal received by the reception unit.
    Type: Application
    Filed: August 19, 2014
    Publication date: February 26, 2015
    Inventor: Takeshi EJIMA
  • Publication number: 20150048971
    Abstract: An echo signal processing device is provided. The device includes an image generating module configured to generate an echo image at a plurality of timings, the echo image generated based on echo signals received by an antenna installed in a movable body. The device also includes a positional information acquiring module configured to acquire absolute positional information of the movable body. The device also includes an analytic area specifying module configured to specify an analytic area in the echo image by an absolute position, based on the absolute positional information. The device also includes a storage configured to store analytic area images, each analytic area images being a part of each echo image, the part corresponding to the analytic area. The device also includes a calculating module configured to calculate echo signal information regarding the echo signals from the analytic area, based on the stored analytic area images.
    Type: Application
    Filed: July 2, 2014
    Publication date: February 19, 2015
    Inventor: Hironori Susaki
  • Publication number: 20150042511
    Abstract: A system and method of continuous carrier wave reconstruction includes a radio navigation receiver that includes one or more processors, memory coupled to the one or more processors, and an input for receiving a signal from a transmitter. The signal has a phase. The one or more processors are configured to obtain phase lock on the received signal, extract first phase information from the received signal, detect a loss in phase lock on the received signal, and extrapolate second phase information while phase lock is lost using a model of the phase. In some embodiments, the one or more processors are further configured to reconstruct the carrier signal based on the first and second phase information. In some embodiments, the one or more processors are further configured to scale the first and second phase information from a first nominal frequency of the received signal to a different second nominal frequency.
    Type: Application
    Filed: April 3, 2014
    Publication date: February 12, 2015
    Applicant: Coherent Navigation, Inc.
    Inventors: Isaac T. Miller, William J. Bencze, Robert W. Brumley, Brent M. Ledvina, Mark L. Psiaki, Thomas J. Holmes, Clark E. Cohen
  • Publication number: 20150035700
    Abstract: A global navigation satellite system (GNSS) enabled device that is configured to distinguish reflected GNSS signals from direct GNSS signals utilizing three-dimensional models of the terrain in the proximity of the GNSS enabled device. By utilizing the identification of reflected GNSS signals, the reflected GNSS signals can be excluded and/or weighted to achieve a more accurate location determination.
    Type: Application
    Filed: September 27, 2013
    Publication date: February 5, 2015
    Applicant: Broadcom Corporation
    Inventors: Frank VAN DIGGELEN, Stephen Mole
  • Publication number: 20150022395
    Abstract: Receiver and methods for determining system time of a navigation system is disclosed. In one example, the receiver includes a baseband processing module and a calculation module. The baseband processing module is configured for obtaining satellite information from the navigation system. The calculation module is configured for estimating a pseudorange based on the satellite information; smoothing the pseudorange via a code; calculating clock bias and clock drift based on the smoothed pseudorange; and determining system time of the navigation system based on the calculated clock bias and clock drift.
    Type: Application
    Filed: July 15, 2014
    Publication date: January 22, 2015
    Inventors: Juan Gou, Jinghua Zou, Weihua Zhang
  • Publication number: 20150022394
    Abstract: Methods, systems, computer-readable media, and apparatuses for isolating a desired GNSS signal from a plurality of GNSS signals with the same code are presented. In some embodiments, a method may comprise receiving, by a mobile device, the plurality of GNSS signals, wherein the plurality of GNSS signals include the desired GNSS signal. Subsequently, the method may comprise processing the received plurality of GNSS signals to a down-converted signal, wherein the down-converted signal has a lower frequency than the desired GNSS signal, and wherein the down-converted signal includes a first channel associated with a non-zero frequency. Moreover, the method may comprise processing the down-converted signal to offset the first channel by an offset frequency corresponding to a fraction of the first channel to create an offset down-converted signal. Furthermore, the method may comprise determining the desired GNSS signal from the offset down-converted signal based on the offset frequency.
    Type: Application
    Filed: July 16, 2013
    Publication date: January 22, 2015
    Inventor: Richard Joseph McCONNELL
  • Publication number: 20150009067
    Abstract: A method for contextual inference of user activity is disclosed. In one embodiment, an indication of the motion of a pole mounted sensing device comprising at least one motion sensor and a Global Navigation Satellite System (GNSS) receiver configured to at least generate raw GNSS observables is received from the at least one motion sensor. The indication of the motion of the pole mounted sensing device is correlated with an operation defined in a gesture library regarding GNSS data collect by the GNSS receiver at a time when the indication of the motion is detected. The indication and the GNSS data are stored.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 8, 2015
    Inventors: Richard Rudow, Shawn D. Weisenburger, James M. Janky
  • Publication number: 20140375498
    Abstract: A system and method for asset tracking configuration of a mobile terminal. A mobile terminal can be designed to enable a remote determination of an asset position. In one embodiment, the mobile terminal can include a configured function that enables the mobile terminal to reconfigure mobile terminal operation (e.g., activation of a GPS engine).
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Inventors: John McKethan, Craig Malone, Homaira Akbari
  • Publication number: 20140375499
    Abstract: A system for determining precise position includes a chirp receiver that processes broadcast chirp signals in the frequency domain to distinguish direct path signals from multipath signals. The chirp receiver processes the received chirp signals, which consist of respective pulsed frequency sweeps, by combining a received chirp signal with a synchronized locally generated chirp signal and phase adjusting and concatenating the results over multiple sweeps, based on estimated clock phase errors and expected phase rotations of the direct path signals, to produce a sine wave. The phase adjustment and concatenation allows the use of longer Fast Fourier Transforms (FFTs) that, in turn, provide increased accuracy of frequency estimation and separate component signals that are very close in frequency.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Inventor: James L. Petersen
  • Publication number: 20140375497
    Abstract: A method for detecting and mitigating errors in a positioning system includes receiving a first signal from a global navigation satellite system (GNSS) indicative of a first position and a second signal from the GNSS indicative of a second position of a machine, determining a difference between the first position and the second position, detecting an error in a current position of the machine when the difference between the first and the second position exceeds a threshold of one of (a) a maximum distance given a maximum velocity, and (b) an actual distance determined based on an output of an inertial sensor on the machine, and mitigating the detected error in the current position of the machine by switching from an output of the positioning system to a position output determined based upon the output of the inertial sensor to update the current position.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 25, 2014
    Inventors: Paul R. Friend, Michael Taylor, Steven R. Krause, Andrew Whitten
  • Publication number: 20140378170
    Abstract: A Global Navigation Satellite System (GNSS) chipset embedded within the cellular device is accessed. The GNSS chipset calculates raw pseudoranges. The raw pseudoranges are extracted from the GNSS chipset for processing elsewhere in the cellular device outside of the GNSS chipset. A position fix is calculated based on the raw pseudoranges. At a first point in time, a first image, and at a second point in time, a second image are obtained with an image capturing device that is in a known physical relationship with the cellular device. An estimate of a distance that the cellular device moved from the first point in time to the second point in time is calculated by processing image data collected from the first point in time to the second point in time. The position fix is processed based on the estimate of the distance.
    Type: Application
    Filed: May 2, 2014
    Publication date: December 25, 2014
    Inventors: Richard Rudow, Robert Wold, Venkateswaran Kasirajan, Nicholas C. Talbot, Peter Van Wyck Loomis, Shawn D. Weisenburger, James M. Janky
  • Publication number: 20140368382
    Abstract: Providing indoor location, position, or tracking of a mobile computer using combined sensor data and network related information is disclosed. Outdoor location, indoor location, and determined motion information may be combined to track the mobile computer indoors.
    Type: Application
    Filed: August 15, 2014
    Publication date: December 18, 2014
    Applicant: HJ Laboratories, LLC
    Inventors: Harry Vartanian, Jaron Jurikson-Rhodes
  • Publication number: 20140361925
    Abstract: Disclosed is a signal receiving apparatus including: a receiver configured to comprise a plurality of terminals to receive different plural satellite signals; a storage portion configured to store characteristic information therein corresponding to the plurality of satellite signals; and a controller configured to determine which of the plurality of satellite signals is received by the plurality of terminals, based on the characteristic information, and configured to control the receiver to tune the plurality of satellite signals received by the plurality of terminals, according to the determination result.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 11, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Young-jin LEE
  • Publication number: 20140354472
    Abstract: A satellite signal navigation receiver can reduce channel resource usage and matched filter requirements by producing a single-bit local replica code from the combined incoming signals of each in view satellite. In one embodiment, the E1-B and E1-C signals from a Galileo satellite are received and converted into single-bit digital representations (B and C, respectively). A modified local replica code D is created by modifying (B?C) by replacing all “?2” values with “?1” values, by replacing all “+2” values with “+1” values, and by replacing all zero values such that a sum of the replaced zero values over a predetermined period will approximately equal zero. For instance, the “0” values can be replaced with alternating “?1” and “+1” values. Another modified replica code D* can be created by modifying (B+C) in a similar manner.
    Type: Application
    Filed: May 9, 2013
    Publication date: December 4, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Gary LENNEN
  • Publication number: 20140355497
    Abstract: Apparatus, method, and system example embodiments provide an improved RF front end to simultaneously transmit and receive signals for cellular telecommunications. In an example embodiment, an apparatus comprises a tunable duplexer selectively connected to an antenna, configured to transmit and receive radio frequency communication signals in a group of at least two bands; and a tunable transmit filter in the duplexer, capable of being tuned to have an inductance value approximately matching at least two inductance values corresponding respectively to pass the at least two bands in the group, each of the at least two bands in the group having a positive duplex offset and each of the at least two inductance values that correspond respectively to the at least two bands in the group, having an inductance value that approximately matches the inductance values corresponding respectively to the other bands in the group.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 4, 2014
    Inventor: Michael REIHA
  • Publication number: 20140354473
    Abstract: One embodiment of the invention provides a receiver for use in a navigation system comprising multiple transmitters. Each transmitter transmits a positioning signal comprising a pseudo-random noise (PRN) sequence corresponding to the respective transmitter. The receiver comprises a code module for supplying multiple PRN sequences corresponding to the respective multiple transmitters; and a correlator for correlating the PRN sequences supplied by the code module with an incoming signal. The multiple PRN sequences are based on a single Sidelnikov/Lempel/Cohn/Eastman (SLCE) generative sequence uSLCE, and each of said multiple PRN sequences, denoted ui satisfies the equation: ui=uSLCE?TiuSLCE, where ? indicates element by element binary XOR addition, and Ti indicates a cyclic shift of i chips.
    Type: Application
    Filed: August 16, 2011
    Publication date: December 4, 2014
    Applicant: EUROPEAN SPACE AGENCY
    Inventor: Stefan Wallner
  • Publication number: 20140347217
    Abstract: A DGNSS-based guidance system, wherein a rover receiver first utilizes data from a master base station transceiver, a DGNSS reference network, or some other differential source to compute a differentially corrected location to establish a reference DGNSS relationship. Using this location and data observed only at the rover, the rover computes an internal set of differential corrections, which set is stored in computer memory, updated as necessary, and applied in future times to correct observations taken by the rover. As the rover enters into areas of other base station receiver reference networks, the rover transceiver will send positional information it receives from the master base station to the new, secondary base station. The secondary base station then calibrates its own reference information using information sent from the original master base station.
    Type: Application
    Filed: August 12, 2014
    Publication date: November 27, 2014
    Inventor: John A. McClure
  • Publication number: 20140350885
    Abstract: A method for evaluating satellite positioning quality and a satellite receiver are disclosed. Satellite information is obtained from one or more satellites of the set of satellites. The satellite information includes an observed value of a parameter of each of the one or more satellites. An estimated value of each observed value is determined based on the satellite information. A set of residual values between the estimated values and the observed values is obtained. A positioning quality associated with the set of satellites is determined based on the set of residual values.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 27, 2014
    Inventors: Juan Gou, Jinghua Zou, Chih-Lang Lin
  • Publication number: 20140347216
    Abstract: The present disclosure discloses an ephemeris collection device and a method of collecting ephemeris data. The ephemeris collection device may include a data storage unit, configured to store a first part of a first ephemeris subframe if a synchronization of the first ephemeris subframe is not completed; and a subframe merge unit, coupled with the data storage unit and configured to receive a second part of the first ephemeris subframe from the subframe synchronizer and retrieve the first part of the first ephemeris subframe from the data storage unit during a subsequent transmission of the first ephemeris subframe. A complete first ephemeris subframe is obtained based on the first part and the second part of the first ephemeris subframe.
    Type: Application
    Filed: March 31, 2014
    Publication date: November 27, 2014
    Applicant: O2Micro Inc.
    Inventors: Jinghua Zou, Weihua Zhang, Juan Gou
  • Publication number: 20140340256
    Abstract: The present invention relates to devices and methods for tracking movement in a marine environment. At least one tracking device that is adapted to be deployed on a surface of the water, wherein the tracking device is capable of moving along the same trajectory of a desired object. Data from the tracking devices are received by at least one satellite, transmitted to a database, and used to determine the forecasted trajectory of the desired object. All data collected from deployed tracking devices may be integrated into a spatial data repository for analysis and reporting using GIS and associated information technologies, thereby allowing for more accurate decision-making and asset deployment during a fluid spill or similar marine contamination event. The present invention also allows for the collection and modeling of accurate localized sea current data, which may assist with marine and coastal engineering works such as shoreline protection and port dredging.
    Type: Application
    Filed: August 4, 2014
    Publication date: November 20, 2014
    Inventors: Peter R. O'Regan, Ali Amer Al-Mohsen
  • Publication number: 20140320341
    Abstract: A position calculating method includes receiving positioning information including at least earth orientation information from a positioning satellite that transmits the positioning information, calculating orbit information of the positioning satellite using the positioning information, and calculating a position of a receiver using a signal from the positioning satellite and the orbit information.
    Type: Application
    Filed: January 20, 2014
    Publication date: October 30, 2014
    Applicant: Seiko Epson Corporation
    Inventor: Kiyotaka MURAKI
  • Publication number: 20140313076
    Abstract: A system for indoor localization using satellite navigation signals in a Distributed Antenna System. The system includes a plurality of Off-Air Access Units (OAAUs), each operable to receive an individual satellite navigation signal from at least one of a plurality of satellite navigation systems (e.g., GPS, GLONASS, Galileo, QZSS, or BeiDou) and operable to route signals optically to one or more DAUs. The system further includes a plurality of remote DRUs located at a Remote location that are operable to receive signals from a plurality of local DAUs. Moreover, the system includes an algorithm to delay each individual satellite navigation signal for providing indoor localization at each of the plurality of DRUs.
    Type: Application
    Filed: March 6, 2014
    Publication date: October 23, 2014
    Applicant: DALI SYSTEMS CO. LTD.
    Inventors: Daryl Meerkerk, Shawn Patrick Stapleton
  • Publication number: 20140306842
    Abstract: The present disclosure relates to a method for determining the position of a WLAN positioning system (WPS) and satellite positioning system (SPS) enabled device. The method can include determining an initial WPS position of the device using WPS, calculating an error region around the initial WPS position of the device, dividing the error region into a plurality of points, obtaining satellite measurements from at least two satellites in view of the device, determining a variation in a receiver clock bias for each point within the error region based on the satellite measurements from at least two satellites, selecting the point with the lowest variation in the receiver clock bias, and determining whether or not to use the point with the lowest variation in receiver clock bias to refine the initial WPS position of the device.
    Type: Application
    Filed: January 27, 2014
    Publication date: October 16, 2014
    Applicant: Skyhook Wireless, Inc.
    Inventors: Farshid ALIZADEH-SHABDIZ, Mohammad A. HEIDARI