Class / Patent application number | Description | Number of patent applications / Date published |
342357440 | Providing data for correcting measured positioning data; e.g., DGPS [differential GPS] or ionosphere corrections (IPC) | 26 |
20100225536 | MOBILE UNIT POSITIONING DEVICE - A disclosed vehicle control device includes a first ionospheric state information receiving unit | 09-09-2010 |
20100231447 | GLOBAL NAVIGATION SATELLITE SYSTEM - Each of a first and a second navigation satellite system (NSS) are adapted to operate according to a first and a second specification, respectively, and each includes a first and a second plurality of space vehicles (SV), respectively. Each of the first and the second plurality of SVs are adapted to be identified by a first and a second plurality of unique corresponding identifications (IDs), respectively. A processor is adapted to receive and identify a first plurality of corresponding signals transmitted from the first plurality of SVs in response to the first plurality of unique corresponding IDs. The processor is adapted to receive and identify a second plurality of corresponding signals transmitted from the second plurality of SVs in response to the second plurality of unique corresponding IDs. The processor is adapted to determine position location information in response to receiving and identifying the first plurality of corresponding signals and the second plurality of corresponding signals. | 09-16-2010 |
20110050494 | Network and Method for Calculating Ionosphere Corrections - The invention relates to a network making it possible to calculate and provide ionospheric corrections to the users of a satellite navigation system, wherein the network also comprises: an aeronautical segment comprising an aeronautical user segment composed of a plurality of aircraft each one having an on-board RF receiver capable of measuring delays of the navigation signals transmitted by the satellites and an aeronautical data communication means between the plurality of aircraft and the ground segment in order to transmit said measurements of delays to the ground segment, and means, at the level of the ground segment, of receiving measurements of delays used for the calculation of the grid, the measurements of delays coming from the plurality of aircraft and from the plurality of ground stations. | 03-03-2011 |
20110084877 | IMPROVED SBAS RECEIVER - Disclosed herein is a Satellite Based Augmentation System (SBAS) receiver. The SBAS receiver is configured to receive SBAS messages containing augmentation data and to provide one or more served GPS receivers with augmentation information based on the augmentation data extracted from the received SBAS messages. The SBAS receiver is designed to implement a Finite State Machine (FSM) intended to be common to all served GPS receivers, and configured to evolve based on the received SBAS messages and to store the augmentation data contained therein. The common FSM is further configured to cooperate with a number of correction modules equal to the number of served GPS receivers, each correction module being configured to receive GPS data from a corresponding served GPS receiver, and to compute an augmented position for the corresponding served GPS receiver based on the corresponding GPS data and on augmentation data retrieved from the common FSM. If the correction modules are implemented in the SBAS receiver, then the augmentation information provided by the SBAS receiver to each served GPS receiver is the augmented position computed by the corresponding correction module. If the correction modules are each implemented in a corresponding served GPS receiver, then the augmentation information provided by the SBAS receiver to the served GPS receiver is the augmentation data stored in the common FSM. | 04-14-2011 |
20120127032 | PORTABLE BASE STATION NETWORK FOR LOCAL DIFFERENTIAL GNSS CORRECTIONS - 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. | 05-24-2012 |
20120176271 | Navigation System and Method for Resolving Integer Ambiguities Using Double Difference Ambiguity Constraints - A system and method for providing improved correction information to navigation receivers includes receiving, from a plurality of reference stations at known locations, a plurality of satellite navigation measurements of signals from a plurality of global navigation satellites. A state of the plurality of global navigation satellites is computed based on the received satellite navigation measurements. Baselines, each corresponding to a pair of the reference stations, are identified. For each identified baseline, computing floating and integer values for a double-differenced integer ambiguity. Double-differenced integer ambiguities that satisfy a set of predefined conditions are identified, and the computed state of the plurality of global navigation satellites is adjusted in accordance with an integer value constraint applied to each double-differenced integer ambiguity that satisfies the set of predefined conditions. The correction information is computed from the adjusted computed state of the plurality of global navigation satellites. | 07-12-2012 |
20120274511 | Satellite Based Augmentation System - A system for augmenting the availability and performance of a satellite geolocation system includes at least: a behaviour model of at least one of the satellites of said geolocation system incorporating new parameters with which to augment the operating range of said system; and an indicator of the deviation between said model and the real behaviour of said geolocation satellite, so as to enable the receiver to continue to use said geolocation satellite to determine its position, using the behaviour model, and outside the nominal operating range of the geolocation system. The parameters of the behaviour model include at least a model of distortion of the code chips transmitted by said navigation satellite to said receiver, or a model of distortion of the phase of the signal transmitted by said navigation satellite to said receiver. | 11-01-2012 |
20120280859 | SYSTEMS AND METHODS OF ASSISTED GPS - Embodiments of an improved assisted global positioning system (GPS) method and system are described. Wireless access points send assistance data to GPS receivers that are integrated into cellular chipsets and other chipsets. The access points may also act as fixed location references for differential GPS (DGPS) mobile stations. Errors caused by multipath travel of the GPS signals are reduced by using fixed location reference receivers. | 11-08-2012 |
20120306694 | GNSS Signal Processing with Regional Augmentation Message - Methods and apparatus for processing of GNSS data derived from multi-frequency code and carrier observations are presented which make available correction data for use by a rover located within the region, the correction data comprising: the ionospheric delay over the region, the tropospheric delay over the region, the phase-leveled geometric correction per satellite, and the at least one code bias per satellite. In some embodiments the correction data includes an ionospheric phase bias per satellite. Methods and apparatus for determining a precise position of a rover located within a region are presented in which a GNSS receiver is operated to obtain multi-frequency code and carrier observations and correction data, to create rover corrections from the correction data, and to determine a precise rover position using the rover observations and the rover corrections. The correction data comprises at least one code bias per satellite, a fixed-nature MW bias per satellite and/or values from which a fixed-nature MW bias per satellite is derivable, and an ionospheric delay per satellite for each of multiple regional network stations and/or non-ionospheric corrections. Methods and apparatus for encoding and decoding the correction messages containing correction data are also presented, in which network messages include network elements related to substantially all stations of the network and cluster messages include cluster elements related to subsets of the network. | 12-06-2012 |
20130088385 | Space Based Augmentation System Adapted for Improving the Accuracy and Reliability of Data Provided by a Satellite Navigation System and Associated Method - A space-based augmentation system improving the accuracy and reliability of satellite navigation system data includes, each at least: a ground station transmitting data to satellites, a ground station receiving signals transmitted by a satellite and by a satellite equipped with transmitting/receiving means for transmitting data received from the ground transmitting station for a given geographical area; two ground computing centres, redundantly and respectively calculating navigation message streams and transmitting to the ground transmitting station navigation message streams and information representative of Quality of Service provided by the system, from signals transmitted by the ground receiving stations. The computing centres, ground receiving station and ground transmitting station are connected by a communication network. The ground transmitting station selects navigation message streams of a master computing centre according to information representative of respective Quality of Service of said computing centres, and said computing centres are synchronized on said master computing centre. | 04-11-2013 |
20130093618 | METHOD AND SYSTEM FOR IMPROVING ACCURACY OF POSITION CORRECTION DATA IN DIFFERENTIAL GLOBAL POSITIONING SYSTEM USING VEHICLE TO VEHICLE COMMUNICATION - A method and system for improving accuracy of a position correction data in a differential global positioning system (DGPS) using vehicle to vehicle (V2V) communication, capable of correcting a DGPS data received from a road side unit (RSU) into information calculated by a sensor, and providing neighbouring vehicles with the corrected value as the DGPS data using the V2V communication, are provided. | 04-18-2013 |
20130141278 | Navigation Data Structure Generation And Data Transmission For Optimal Time To First Fix - A method and system for transmitting navigation data to a satellite navigation receiver for reducing time to first fix is provided. A signal generation system generates a navigation data structure comprising a first sub-frame and a second sub-frame for accommodating selective ephemeris data, a third sub-frame for accommodating first parameters of almanac data, and a fourth sub-frame for accommodating a text message comprising second parameters of almanac data, and transmits the selective ephemeris data and the first and second parameters of almanac data to the satellite navigation receiver. The configuration of the navigation data structure enables the satellite navigation receiver to collect the navigation data in reduced time. Each satellite of a constellation simultaneously transmits distinct first parameters of the almanac data in the third sub-frame of the navigation data structure to the satellite navigation receiver, thereby allowing the satellite navigation receiver to receive collective almanac data in reduced time. | 06-06-2013 |
20140132444 | GNSS Reference for Subscribed Precisions - This application discloses a GNSS reference apparatus having a vector error generator and a reference data server. The vector error generator generates one or more sequences of keyed intentional errors made confidential with confidential error keys, and then combines the sequences to generate a sequence of reference erroneous positions. The reference data server issues GNSS position-determination reference data based on the reference erroneous positions where the keyed intentional errors for at least one of the confidential sequences are reversible with confidential access to the corresponding confidential error key for determining a GNSS-based position. | 05-15-2014 |
20140266877 | PRECISION ACCURACY GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) WITH SMART DEVICES - A global navigation satellite system (GNSS) based precision accuracy navigation and location system includes a Smart device with a hardwired Wi-Fi or Bluetooth connection to a GNSS receiver. Differential GNSS corrections are received over the Internet from a base receiver for precision accuracy positioning, GIS, navigation and other applications. | 09-18-2014 |
20140347215 | MOUNTING DEVICE FOR ANTENNA AND GEODETIC SURVEYING APPARATUS INCLUDING THE SAME - Disclosed herein is a mounting device for an antenna, including: a first supporting part fixed to any geodetic point in a first direction and having a first length; a second supporting part extended from the first supporting part in a second direction and having a second length; a first mounting part extended from a first point of the second supporting part in the first direction and mounted with a first antenna receiving a first satellite navigation signal transmitted from a navigation satellite; and a second mounting part extended from a second point of the second supporting part in the first direction and mounted with a second antenna receiving a second satellite navigation signal transmitted from the navigation satellite. | 11-27-2014 |
20150145722 | USING SBAS IONOSPHERIC DELAY MEASUREMENTS TO MITIGATE IONOSPHERIC ERROR - Systems and methods for using SBAS delay measurements to mitigate ionospheric error are provided. In an embodiment, an array of ionospheric delay measurements of a GNSS is provided, wherein a pierce point is associated with each delay measurement in the array. Further, at least one first element in the array and at least one second element in the array that has a different pierce point than the at least one first element are selected and it's determined whether the difference between the delay measurement of the at least one first element and the delay measurement of the at least one second element is less than a threshold. A level of inflation of error due to geometric screening techniques is adjusted if the difference between the delay measurement of the at least one first element and the delay measurement of the at least one second element is less than the threshold. | 05-28-2015 |
20150362596 | STATE DETECTING METHOD, CORRECTION VALUE PROCESSING DEVICE, POSITIONING SYSTEM, AND STATE DETECTION PROGRAM | 12-17-2015 |
20160061958 | DEVICE FOR INPUTTING RTK CORRECTION DATA TO A GPS - A communications system includes a GPS receiver that receives GPS position data and GPS correction data, a mobile device having a first transceiver and an adapter coupled to the GPS receiver and having a second transceiver and a voltage regulator. The mobile device accesses RTK correction data over a cellular network using a current GPS position and processes the RTK correction data. The second transceiver of the adapter receives the RTK correction data over a wireless signal sent by the first transceiver of the mobile device. The adapter converts the RTK correction data so that the RTK correction data is receivable by a serial port on the GPS receiver that the adapter is coupled and the voltage regulator derives power from the GPS receiver to power the adapter. | 03-03-2016 |
20160077211 | METHOD AND SYSTEM FOR DYNAMIC-TO-DYNAMIC PRECISE RELATIVE POSITIONING USING GLOBAL NAVIGATION SATELLITE SYSTEMS - Global Navigation Satellite (GNS) signal correction system ( | 03-17-2016 |
20160109578 | DISRUPTION DETECTION OF A POSITIONING MEASUREMENT DIFFERENTIAL CORRECTION MESSAGE OF A SATELLITE GEOLOCATION DEVICE - The invention relates to a disruption detection method and device for a positioning measurement correction message of a satellite geolocation device, able to receive a composite radio signal including a plurality of signals each emitted by a satellite in view of the geolocation device, and a positioning measurement differential correction message (MC) emitted by a satellite geolocation precision augmentation system. The device ( | 04-21-2016 |
20160116595 | SYSTEMS AND METHODS FOR AVERAGING SATELLITE SIGMAS AND READMITTING EXCLUDED SATELLITE MEASUREMENTS INTO DIFFERENTIAL CORRECTIONS AND INTEGRITY MONITORS - Systems and methods for averaging satellite sigmas and readmitting excluded satellite measurements into differential corrections and integrity monitors are provided. In one embodiment, a method comprises: calculating a first RFI based averaged sigma and a second RFI based averaged sigma, wherein the first RFI based averaged sigma includes a sigma for the excluded satellite measurement and wherein the second RFI based averaged sigma does not include the sigma for the excluded satellite measurement; and, readmitting the excluded satellite measurement into either a differential correction broadcast or a respective integrity monitor when the first RFI based averaged sigma is less than or equal to the second RFI based averaged sigma. | 04-28-2016 |
20160146942 | USING SPACE-BASED AUGMENTATION SYSTEM (SBAS) GRID IONOSPHERE VERTICAL ERROR (GIVE) INFORMATION TO MITIGATE IONOSPHERE ERRORS FOR GROUND BASED AUGMENTATION SYSTEMS (GBAS) - GBAS includes reference receivers, processing module, and communication device. Processing module checks GNSS satellite measurements to determine proximity of GNSS satellite measurement's IPP to IGPs derived from SBAS geostationary satellites. Processing module determines that GNSS satellite measurement is safe for mitigation using overbounded Vertical Ionosphere Gradient standard deviation sigma-vig (σ | 05-26-2016 |
20160154108 | PORTABLE BASE STATION NETWORK FOR LOCAL DIFFERENTIAL GNSS CORRECTIONS | 06-02-2016 |
20180024248 | SYSTEMS AND METHODS FOR NEQUICK MODELING USING NEURAL NETWORKS | 01-25-2018 |
20190146092 | SYSTEMS AND METHODS FOR IMPROVED ATMOSPHERIC MONITORING AND GPS POSITIONING UTILIZING GNSS TOMOGRAPHIC REFRACTIVITY | 05-16-2019 |
20190146093 | POSITION MEASUREMENT SYSTEM FOR MOVABLE BODY | 05-16-2019 |