| Patent application number | Description | Published |
|---|
| 20090228210 | NAVIGATION SYSTEM BASED ON NEUTRINO DETECTION - A method and system for navigating is disclosed. The method and system comprises measuring the angle of arrival of neutrinos emitted by a source and tagging the neutrino measurements utilizing an accurate clock. The method and system further includes processing the tagged neutrino measurements through a computational model of a neutrino generator and combining the processed measurements with navigational aids to provide location information. A system and method in accordance with an embodiment measures angle of arrival of neutrinos generated by the sun, and therefore derives navigation information which is obtainable deep underground or underwater. Additionally, the system provides robust navigation, without drift, in the absence of other common navigation systems such as global positioning systems. | 09-10-2009 |
| 20090315764 | PRECISE ABSOLUTE TIME TRANSFER FROM A SATELLITE SYSTEM - Systems and methods according to one or more embodiments are provided for obtaining a precise absolute time using a satellite system. The precise absolute time may be used, for example, as an aid for positioning systems including navigation in attenuated or jammed environments. A method of obtaining precise absolute time transfer from a satellite according to an embodiment comprises: receiving a precision time signal from a satellite, wherein the precision time signal comprises a periodic repeating code; determining a timing phase of the code; receiving additional aiding information; and using the timing phase and the additional aiding information to determine a precise absolute time. | 12-24-2009 |
| 20090315769 | INTERNET HOTSPOTS LOCALIZATION USING SATELLITE SYSTEMS - Systems and methods according to various embodiments provide for navigation in attenuated environments by integrating satellite signals with Internet hotspot signals. In one embodiment, a receiver unit adapted to perform geolocation comprises an antenna adapted to receive a precision time signal from a satellite and receive additional aiding information from a wireless network station, wherein the precision time signal comprises a periodic repeating code. The receiver unit also comprises a processor and a memory adapted to store a plurality of computer readable instructions which when executed by the processor are adapted to cause the receiver unit to: use the precision time signal and the aiding information to determine a precise absolute time, determine positioning information associated with the receiver unit, use the positioning information to request location information of the wireless network station, and determine an absolute geolocation of the receiver unit using the positioning information and the location information. | 12-24-2009 |
| 20100171652 | LOCAL CLOCK FREQUENCY CALIBRATION USING LOW EARTH ORBIT (LEO) SATELLITES - Various techniques are provided for calibrating a frequency of a local clock using a satellite signal. In one example, a method of transferring frequency stability from a satellite to a device includes receiving a signal from the satellite. The method also includes determining a code phase from the satellite signal. The method further includes receiving aiding information. In addition, the method includes calibrating a frequency of a local clock of the device using the code phase and the aiding information to substantially synchronize the local clock frequency with a satellite clock frequency. | 07-08-2010 |
| 20110148701 | Precise Absolute Time Transfer From A Satellite System - Systems and methods according to one or more embodiments are provided for obtaining a precise absolute time using a satellite system. The precise absolute time may be used, for example, as an aid for positioning systems including navigation in attenuated or jammed environments. A method of obtaining precise absolute time transfer from a satellite according to an embodiment comprises: receiving a precision time signal from a satellite, wherein the precision time signal comprises a periodic repeating code; determining a timing phase of the code; receiving additional aiding information; and using the timing phase and the additional aiding information to determine a precise absolute time. | 06-23-2011 |
