Class / Patent application number | Description | Number of patent applications / Date published |
342357390 |
Satellite radio beacon positioning system transmitting time-stamped messages; e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO (IPC)
| 775 |
342357210 |
Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
| 556 |
342357780 |
Using Doppler frequency shift | 3 |
20140168011 | COMMUNICATION APPARATUS - A communication apparatus includes a Doppler shift amount calculation unit configured to calculate a Doppler shift amount of a reception signal which is obtained by modulating a signal, for which spectrum spreading is performed by using a predetermined spread code, by a predetermined carrier frequency, a frequency shift amount setting unit configured to set a frequency shift amount on the basis of the Doppler shift amount, a frequency conversion unit configured to shift the frequency of the reception signal by the frequency shift amount, a coherent addition unit configured to perform coherent addition of the reception signal, a spread code generation unit configured to generate a spread code, and a phase detection unit configured to perform correlation calculation between a calculation result of the coherent addition and the spread code and detect a phase of the spread code of the reception signal on the basis of the correlation calculation result. | 06-19-2014 |
20140354477 | Satellite Orbital Determination (OD) Using Doppler and Kepler Orbital Elements - Technology to determine a satellite's orbit is disclosed. In an example, an orbital determination (OD) device for a satellite operable to determine a satellite's orbit can include computer circuitry configured to: Receive a single global positioning system-generated (GPS-generated) signal from a GPS satellite; decode an ephemeris of the GPS satellite from the GPS-generated signal; determine a Doppler shift and a Doppler trend of the GPS-generated signal; and generate a Doppler-GPS OD using the ephemeris of the GPS satellite and the Doppler shift and the Doppler trend of the GPS-generated signal fit to Kepler orbital elements of an orbit model. | 12-04-2014 |
20160377700 | DOPPLER GEOLOCATION SYSTEM (DGS) - In a geolocation method and/or apparatus, a plurality of satellites is provided in a fixed Earth-Sun coordinate system or a fixed Earth-moon coordinate system. Two respective radio frequency band signals of the plurality of respective radio frequency band signals are received by at least one receiver from at least two satellites of the plurality of satellites, the at least one receiver comprising at least one respective geolocation. The at least one receiver generating at least two pluralities of equal Doppler shift contours corresponding to the at least two satellites of the plurality of satellites. The at least one receiver determines the at least one respective geolocation based at least in part on a universal time and intersections of the at least two pluralities of equal Doppler shift contours. The at least one receiver outputs the at least one respective geolocation. | 12-29-2016 |
Entries |
Document | Title | Date |
20110221631 | SPACECRAFT POSITION ESTIMATING SYSTEM AND METHOD - A system for estimating a spacecraft ( | 09-15-2011 |
20120105277 | TIME SYNCHRONIZATION WITH AMBIENT SOURCES - Systems and methods for extracting synchronization information from ambient signals, such as broadcast television signals, and using the synchronization information as a reference for correcting the local time base so that a GNSS positioning receiver system maintains relative time base accuracy with respect to a GNSS time. | 05-03-2012 |
20130127657 | Method and Apparatus for Acquiring Information about Base Station Antenna, and Base Station Antenna - A method and an apparatus for acquiring information about a base station antenna, and the base station antenna. The apparatus includes at least two receiving antenna units that are configured to receive satellite signals sent by a satellite in a satellite positioning system. The receiving antenna units and the base station antenna accord with a preset position relationship. A processing unit is configured to obtain position information of the receiving antenna units according to the satellite signals and to obtain position information of the base station antenna according to the position information of the receiving antenna units and the preset position relationship between the receiving antenna units and the base station antenna. | 05-23-2013 |
20130307722 | Automatic Detection of Mode of Transportation by Analyzing Signal Strength of Received GNSS Signals and Speed - Object of the present invention is to provide a method to reduce power consumption of location based services applications, that run on mobile devices, by utilizing processor and positioning resources only when location changes. A method also is provided for detecting or inferring mode of transportation of user of a GNSS-enabled mobile device, such as smart phone, tablet, etc. Modes of transportation consist of: traveling on foot, biking, motor biking, driving or riding on a car, riding on bus, and riding on train. This method is based on analyzing signal strength information of GNSS signals received at location of the user and speed. The latter is used to make distinction between travelling on foot, biking, and motor biking modes. GNSS signal cannot penetrate metal, therefore when the mobile device is inside a vehicle, such as car, bus, or train, GNSS signals that their path collides with roof or metal body of the vehicle would be weak and have low SNR. | 11-21-2013 |
20140049424 | SYSTEMS AND METHODS FOR USING A SATELLITE POSITIONING SYSTEM TO DETECT MOVED WLAN ACCESS POINTS - In one embodiment, an area in which a mobile device may be located is determined using a satellite-based positioning system (SPS). An area in which the mobile device may be located is determined using a wireless local area network based positioning system(WLAN-PS). The area determined using the SPS is compared to the area determined using the WLAN-PS. In response to the area determined using the SPS being remote from the area determined using the WLAN-PS, it is concluded that the one or more WLAN APs have been moved to be about the area determined using the SPS. One or more locations of the one or more WLAN APs are updated in the reference database. | 02-20-2014 |
20140210662 | Demand Positioning - The subject matter disclosed herein relates to determining a location of a mobile device using more than one location-determining technology. | 07-31-2014 |
20140292564 | PORTABLE BIOMETRIC MONITORING DEVICES HAVING LOCATION SENSORS - Assisted-GPS for a portable biometric monitoring device is provided. The portable biometric monitoring device may obtain updated ephemeris data from an associated secondary device via a short-range, low-power communication protocol. The secondary device may be a computing device such as a smartphone, tablet, or laptop. Various rules may control when the ephemeris data is updated. The ephemeris data may be used in the calculation of the global position of the portable biometric monitoring device. Additionally, the portable biometric monitoring device may communicate downloaded position fixing data to the associated secondary device. The associated secondary device may then calculate the global position from the position fixing data. | 10-02-2014 |
20140292565 | PORTABLE BIOMETRIC MONITORING DEVICES HAVING LOCATION SENSORS - Assisted-GPS for a portable biometric monitoring device is provided. The portable biometric monitoring device may obtain updated ephemeris data from an associated secondary device via a short-range, low-power communication protocol. The secondary device may be a computing device such as a smartphone, tablet, or laptop. Various rules may control when the ephemeris data is updated. The ephemeris data may be used in the calculation of the global position of the portable biometric monitoring device. Additionally, the portable biometric monitoring device may communicate downloaded position fixing data to the associated secondary device. The associated secondary device may then calculate the global position from the position fixing data. | 10-02-2014 |
20140292566 | PORTABLE BIOMETRIC MONITORING DEVICES HAVING LOCATION SENSORS - Assisted-GPS for a portable biometric monitoring device is provided. The portable biometric monitoring device may obtain updated ephemeris data from an associated secondary device via a short-range, low-power communication protocol. The secondary device may be a computing device such as a smartphone, tablet, or laptop. Various rules may control when the ephemeris data is updated. The ephemeris data may be used in the calculation of the global position of the portable biometric monitoring device. Additionally, the portable biometric monitoring device may communicate downloaded position fixing data to the associated secondary device. The associated secondary device may then calculate the global position from the position fixing data. | 10-02-2014 |
20150097721 | Anti-Spoofing in a Satellite Navigation System - Embodiments are generally directed to anti-spoofing techniques for satellite navigation systems. In general, the anti-spoofing techniques use codeless or semi-codeless tracking of encrypted satellite signals to generate measurements that can be used to perform consistency checks to received non-encrypted signals. The consistency checks will detect if the non-encrypted signal is a genuine satellite signal or a spoofing signal. | 04-09-2015 |
20160131737 | METHOD AND SYSTEM FOR MONITORING A PHASE FOR TRANSFERRING A SATELLITE FROM AN INTIAL ORBIT TO A MISSION ORBIT - Disclosed is a method ( | 05-12-2016 |