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| Number | Title | Issue Date |
| 8188919 | Globally-convergent geo-location algorithm A system and method for estimating a geolocation of a non-cooperative target using any reasonable target location estimate. Collectors may acquire actual signal measurements including a direction of arrival (DOA), a target range, a time difference of arrival (TDOA),... | 05/29/2012 |
| 8184053 | Position estimating system, radio communication apparatus, program, position estimating method and information server A radio communication apparatus has a storage section for correlating and storing positional information and identification information of the base station, a receiving section for receiving radio signals transmitted from the base station and containing the identifi... | 05/22/2012 |
| 8184045 | Processing of satellite positioning system signals The invention provides a method of processing signals from a satellite positioning system in which a user inputs an approximate indication of current position, and this is used when processing satellite samples to reduce the processing required or increase the relia... | 05/22/2012 |
| 8184051 | Method and arrangement for measuring the directional characteristic of an antenna to be tested A method of measuring a directional graph of a test antenna includes disposing a plurality of measuring probes relative to the test antenna, each being disposed at a different first predetermined height above a reference plane; disposing the test antenna at a second... | 05/22/2012 |
| 8179321 | Context sensitive mobile device utilization tracking A method and apparatus for generating context sensitive mobile device utilization data. The method comprises retrieving mobile device utilization data from a mobile device utilization and tracking device, retrieving location data from the tracking device, retrieving... | 05/15/2012 |
| 8179319 | Adaptive optimization of estimation of the angle of arrival of a signal received by an array of antenna elements A parameter of interest of a signal, such as the angle of arrival of a target signal received by an antenna system having an array of antenna elements, is estimated by (a) obtaining disparate observations of the target signal received by the antenna system; (b) with... | 05/15/2012 |
| 8179312 | 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 e... | 05/15/2012 |
| 8179311 | Method for the acquisition of signals of a global navigation satellite system A method of acquisition of a received signal received from a global navigation satellite system, includes: obtaining a snapshot of the received signal; correlating the snapshot with a locally-generated signal, wherein the correlating includes: trying a phase delay v... | 05/15/2012 |
| 8174445 | Method and apparatus for enhanced 911 location using power control in a wireless system Methods of selecting a transmitter power for a mobile telephone include receiving a telephone number and transmitting a control message associated with selection of a transmitter power if the telephone number meets a predetermined criterion. For example, if the tele... | 05/08/2012 |
| 8169368 | Method, apparatus and computer program for updating antenna beam angles of a directional antenna of wireless device Antenna beam angles of one or more directional antennas of a wireless device are updated to communicate with a plurality of other wireless devices. Each one of the antenna beam angles is associated with one of the plurality of other wireless devices. At least one an... | 05/01/2012 |
| 8169366 | Reconfigurable satellite positioning system receivers Methods and apparatus are provided for operatively enabling at least a first receiver path to receive a first signal associated with a first satellite positioning system (SPS), operatively enabling at least a second receiver path to receive a signal associated with ... | 05/01/2012 |
| 8164516 | GPS-based positioning system for mobile GPS terminals The present invention discloses a GPS system that uses call-processor intelligence to determine the mode of operation of a GPS receiver located in a GPS terminal. The modes are selected based on the availability of network facilities, the GPS information that can be... | 04/24/2012 |
| 8164513 | Present position locating method An evaluation point E of a present position candidate corresponding to each satellite set is calculated based on an a priori residual (APR) (APR value), a PDOP value, and the number of satellites of the target satellite set according to E=k1·f1(APR)+k... | 04/24/2012 |
| 8164515 | Methods and apparatus to locate a wireless device Methods and apparatus to locate a wireless device are described. A disclosed example method includes transmitting a request location message from a first wireless station to a second wireless station to determine a geographic location of a third wireless station, re... | 04/24/2012 |
| 8164517 | Global positioning system receiver timeline management Satellite positioning system (SATPS) receiver that has a plurality of modes and channels, where a timeline module configures the channels based on the mode of operation of the SATPS receiver and reconfigures the channels if the mode of operation of the SATPS changes... | 04/24/2012 |
| 8164519 | Fast acquisition engine A method of fast acquisition of a location of a device is disclosed. The method generally includes the steps of (A) repeatedly powering up automatically (i) a radio receiver and (ii) a given subset of a plurality of correlators in some of a plurality of search engin... | 04/24/2012 |
| 8154443 | Method and system for GNSS coexistence A system and method for operating a wireless transmitter and a global navigation satellite (“GNSS”) receiver coexistent in a mobile wireless device. A mobile wireless device includes a GNSS receiver and a wireless networking system. The wireless networking syste... | 04/10/2012 |
| 8154444 | Emergency beacon with encoded warning A personal locator beacon (PLB) that is used to transmit a radio frequency emergency distress signal. The PLB contains a GPS receiver to determine the exact global positioning coordinates of the beacon. The transmitted distress signal contains a security message tha... | 04/10/2012 |
| 8154449 | Signal acquisition systems with applications of general clocks A global positioning system (GPS) system includes a clock module for providing multiple counter values at multiple time points. The GPS system also includes a system module coupled to the clock module. The system module is capable of obtaining a time value for each ... | 04/10/2012 |
| 8154446 | Method for acquiring signal of satellite Disclosed is a method for acquiring a signal of a satellite by a receiver, including pre-storing weighting factors of satellites, which include possibility indexes of satellite signal acquisition with respect to positions and times of the receiver, receiving a reque... | 04/10/2012 |
| 8149168 | Position determination using wireless local area network signals and television signals Apparatus having corresponding methods and computer-readable media comprise a first receiver to receive a wireless television signal; a first measurement unit to generate a measurement of the wireless television signal; wherein a position of the apparatus is determi... | 04/03/2012 |
| 8138973 | Phased array antenna This invention relates to utilizing a larger number of lower power transmit/receive modules in a phased antenna array in order to utilize cheaper and simpler transmit/receive modules whilst retaining comparable power per unit area as can be achieved through using co... | 03/20/2012 |
| 8138975 | Interference detection, characterization and location in a wireless communications or broadcast system A Wide Area Sensor Network (WASN) is disclosed that utilizes wideband software defined radios (SDRs) to monitor RF energy over a wide frequency range, detect when critical frequencies are being jammed or otherwise interfered with, and locate the source of the interf... | 03/20/2012 |
| 8134500 | Method and apparatus for enhanced autonomous GPS Method and apparatus for locating position of a remote receiver is described. In one example, long term satellite tracking data is obtained at a remote receiver. Satellite positioning system (SPS) satellites are detected. Pseudoranges are determined from the remote ... | 03/13/2012 |
| 8134502 | Method and apparatus for reducing power consumption in GNSS receivers Systems and methods are disclosed to use adaptive continuous tracking (ACT) to reduce the power consumption of GNSS receivers. In GNSS receivers, a longer observation time of the satellites translates into better positioning accuracy but also consumes more power. AC... | 03/13/2012 |
| 8130140 | Optimized beamforming for satellite communication A method for determining beamforming weights used onboard a satellite and ground-based beamforming weights used in a ground-based station as part of a satellite communication system. This beamforming method is a two-stage beamforming process that requires a reduced ... | 03/06/2012 |
| 8125387 | Regional satellite positioning supplementary system Systems and methods for a navigation satellite of a satellite positioning supplementary system are provided in which a unit generates a navigation signal with a signal strength being dimensioned in such a way that it is still possible to receive signals of other sat... | 02/28/2012 |
| 8125378 | System and method for determining position using doppler velocities This disclosure is directed to systems and methods for providing GPS positioning determinations from a single set of Doppler measurements from a plurality of satellites in conjunction with satellite ephemeris data and a rough GPS time estimate. Measured Doppler velo... | 02/28/2012 |
| 8125385 | Apparatus and method for phase fronts based on superluminal polarization current An apparatus and method for a radiation source involving phase fronts emanating from an accelerated, oscillating polarization current whose distribution pattern moves superluminally (that is, faster than light in vacuo). Theoretical predictions and experimental meas... | 02/28/2012 |
| 8125386 | Steerable antenna and receiver interface for terrestrial broadcast Antennas with steerable antenna patterns and techniques for using such antennas are described. In accordance with the invention, antenna patterns with one or more NULLs are used. Through the use of digital control signals the antenna pattern is steered so that a sou... | 02/28/2012 |
| 8125388 | Method for calibrating an AOA location system for all frequencies in a frequency hopping signal A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in response to one or more calibration signals injected into the system at... | 02/28/2012 |
| 8120530 | Method and device for using GNSS satellite trajectory extension data in mobile apparatus A method and device for using satellite trajectory extension data in a mobile apparatus. The device in accordance with the present invention comprises an I/O interface and a microprocessor. The input/output (I/O) interface is used for obtaining at least one satellit... | 02/21/2012 |
| 8120527 | Satellite differential positioning receiver using multiple base-rover antennas A rover processor determines position of a rover based upon the interaction between multiple antennas located at the rover and multiple antennas located at a base. The rover antennas may include a rover master antenna having a phase center located at the centroid of... | 02/21/2012 |
| 8115678 | Generating an array correlation matrix using a single receiver system According to one embodiment, generating an array correlation matrix includes interfacing with an antenna system that has antenna elements. The antenna elements receive incoming signals, and each antenna generates a response signal in response to receiving the signal... | 02/14/2012 |
| 8106826 | Antenna arrangement An antenna has multiple antenna elements, with a beam forming Butler matrix, having antenna ports and input/output ports, with each of said antenna elements being connected to a respective port of the beam forming Butler matrix. Transceiver circuitry is connected to... | 01/31/2012 |
| 8106828 | Location identification using broadcast wireless signal signatures An apparatus for location identification using broadcast wireless signal signatures includes a receiver to receive first measurements of a plurality of wireless television signals. The first measurements are made by a remote device receiving the plurality of wireles... | 01/31/2012 |
| 8106815 | System for positioning a terrestrial user Disclosed is a system for positioning a terrestrial user. The system includes navigation satellites placed in medium altitude orbits, management satellites placed in high orbits, able to manage the navigation satellites and communicate with the Earth. The management... | 01/31/2012 |
| 8106827 | Adaptive array control device, method and program, and adaptive array processing device, method and program An adaptive array control device is described. The adaptive array control device includes a first array processing section and a second array processing section in which phase responses are almost opposite with respect to a target signal and a signal incoming from a... | 01/31/2012 |
| 8102317 | Location identification using broadcast wireless signal signatures An apparatus comprises a receiver to receive a plurality of wireless television signals each representing a television channel, and a measurement circuit to identify the television channels based on the wireless television signals. One or more of a plurality of poss... | 01/24/2012 |
| 8102316 | System and method for tracking lost subjects A method for monitoring and tracking the position of a subject comprises, in an exemplary embodiment, the steps of embedding a transponder into an article to be worn by the subject and installing software in a GPS-enabled receiver, such as a cell phone or the like, ... | 01/24/2012 |
