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7633438 |
Method of downloading ephemeris data based on user activity
Ephemeris data is downloaded intelligently to a GPS-enabled wireless communications device based on user activity rather than at fixed predetermined intervals. Ephemeris data can be downloaded to...
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7633439 |
Method and system for processing positioning signals based on predetermined message data segment
A method and system for determining a geolocation of an object includes collecting a positioning signal including a predetermined message data segment. A time of arrival of the predetermined...
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7633440 |
Positioning receiver
A positioning receiver is shown having one or more receiving channels for receiving a signal from a positioning station, a controlling element for controlling the reception of the signal from the...
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7630830 |
Navigation apparatus, driving direction guidance method, and navigation system
A navigation apparatus and a driving direction guiding method are capable of clearly indicating a correct direction in which a vehicle should be driven at an exit when the vehicle exits a parking...
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7629925 |
Positioning apparatus
A positioning apparatus and a point positioning method which estimated with high accuracy with only one linear regression equation is provided. The positioning apparatus ( 10 ) includes the two GPS...
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7626958 |
Serial port multiplexing protocol
An interface system for interfacing to a first receiving device receiving a first plurality of signals and a second receiving device receives a second signal includes a microcontroller coupled to...
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7626539 |
Method and apparatus for managing time in a satellite positioning system
A method, apparatus and system for time management in a position-location system is described. The method may include (i) obtaining, at a global-navigation-satellite-system receiver while being...
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7626542 |
Mitigating interference in a signal
A method and receiver are disclosed for mitigating or substantially canceling signal interference between signals detected at the receiver. Once a presumed interfering signal(s) is acquired,...
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7623069 |
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...
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7623067 |
Fast search GPS receiver
A system within a multi-channel GPS receiver that searches for Global Positioning System (GPS) satellites by receipt of a plurality of GPS signals where each GPS signal corresponds to a GPS...
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7623068 |
Detection of deception signal used to deceive geolocation receiver of a satellite navigation system
A method for detecting the presence of a deception signal associated with a satellite navigation system. The deception signal has certain “observables”, which can be used by a GPS receiver to...
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7619560 |
GPS processing arrangement
A software GPS processing arrangement comprising a FIFO buffer for receiving a stream of the GPS signal samples, a memory, a DMA controller for transferring the GPS signal samples from the FIFO...
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7612713 |
First output position calculation method, storage medium, positioning device, and electronic instrument
In the first positioning, a positioning process that calculates the present position based on acquired GPS satellite signals (step A 3 ) is performed a plurality of times. A number of times that...
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7612711 |
System and method for communicating low data rate information with a radar system
A method is disclosed for transmitting low data rate symbols from a communications terminal to a burst radar transceiver. A plurality of bursts can be emitted from a burst radar transceiver, each...
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7609204 |
System and method for dynamically estimating output variances for carrier-smoothing filters
An improved system and method is disclosed for dynamically estimating the output variances of carrier-smoothing filters used, for example, in GPS receivers. By accurately estimating the output...
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7605750 |
Enhancing mobile multiple-access communication networks
A global positioning system receiver for use to determine accurate position during flight based on data received from GPS satellites, the receiver including a clock with high short term accuracy,...
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7603232 |
Vehicle position tracking system via satellite and method thereof
A vehicle position information transmitter via satellite, a method thereof, a vehicle position tracking system using the same and a method thereof are provided. The transmitter transmits vehicle...
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7598907 |
System and method for WWAN/WLAN position estimation
Apparatuses and methods for implementing the GPS positioning functionalities in devices that are capable of communicating using IP packets are disclosed. The aiding-information-enhanced GPS...
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7593706 |
Dynamic pre-selector for a GPS receiver
A GPS receiver circuit ( 300 ) for reducing insertion loss. The receiver circuit ( 300 ) includes a switch ( 304 ) for diverting input signals between a filtered pathway ( 312 ) and a short circuit...
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7593738 |
GPS synchronization for wireless communications stations
A method and system are specified to determine, provide, and exploit the precise time base relations between the distinct signal timings of the Global Positioning System (GPS) and a wireless...
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7592950 |
Method and apparatus for combining measurements and determining clock offsets between different satellite positioning systems
Method and apparatus for processing satellite signals from a first satellite navigation system and a second satellite navigation system is described. In one example, at least one first pseudorange...
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7590405 |
Apparatus for enabling a mobile communicator and methods of using the same
An apparatus and method for enabling a Mobile Communicator, such as a cell phone or Mobile Communication Device. A Mobile Communicator comprising: an Enabling System, wherein the Enabling System...
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7586382 |
Methods and systems for temperature related frequency drift compensation
Systems and methods are provided that compensate for frequency drift due to temperature variation without the need for a temperature sensor. In one embodiment, a navigation receiver with an...
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7586440 |
Independent positioning device and independent positioning method
A linear regression equation is comprised of the objective variables and the explanatory variables. The objective variables are comprised of the L1 carrier phases, the L2 carrier phases, the C/A...
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7579984 |
Ultra-tightly coupled GPS and inertial navigation system for agile platforms
An Ultra-Tightly Coupled GPS-inertial navigation system for use in a moving agile platform includes a range residual extractor that uses best curve fitting of a third order polynomial for...
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7580794 |
Remote subscription unit for GNSS information
A GPS information service system for providing supplemental GPS correction and signal acquisition information to subscribers. A GPS information server broadcasts GPS aiding information encrypted...
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7579985 |
Positioning apparatus, control method of positioning apparatus, control program for positioning apparatus, and computer readable recording medium for storing control program for positioning apparatus
A positioning apparatus for positioning a current position based on satellite signals from positioning satellites includes: positioning time unit information estimating means for estimating...
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7576690 |
Position determination with reference data outage
Position determination at a rover station on the basis of positioning signals from a plurality of positioning satellites. During normal operation a position of the rover station is determined on...
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7574168 |
Selective GPS denial system
A selective GPS denial system includes a plurality of GPS deniers for disrupting reliable operation of GPS receivers, a plurality of remote sensor interfaces, a gateway, and a computer management...
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7573423 |
Method of acquiring satellite data
The present invention provides a method of acquisition of satellite data by a mobile device including a radio navigation satellite system (RNSS) receiver. The method includes: the receiver...
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7574301 |
Global positioning system receiver and correlating circuit thereof
A global positioning System receiver and a correlating circuit thereof are disclosed. They sequentially and in parallel generate the portion of bits of the C/A code representing the satellite,...
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7574218 |
Systems and methods for transmitting global positioning system information
A wireless communication system includes a location assist system that is configured to interface with a network, such as the Internet, or a server, such as an HTTP server, to obtain GPS...
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7570206 |
Positioning device, positioning control method, positioning control program, and computer-readable recording medium having positioning control program recorded thereon
A positioning device comprising: a peak frequency determination section which determines a peak frequency which is a reception frequency corresponding to a maximum correlation value of a specific...
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7570207 |
Positioning device, electronic instrument, and storage medium storing program
Signals output from two filters included in a filter section 70 and differing in passband are respectively stored in different memories included in a memory section 80 , and a positioning...
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7567208 |
Position and time determination under weak signal conditions
Described herein are systems and methods that are capable of determining receiver position and system time under weak signal conditions. When the receiver is unable to accurately determine the...
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7564406 |
Method and apparatus in standalone positioning without broadcast ephemeris
The present invention provides methods and system for enabling a standalone navigation receiver capable of generating receiver specific predicted satellite orbits based on historical navigation...
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7551133 |
GPS navigation using interacting multiple model (IMM) estimator and probabilistic data association filter (PDAF)
A method for GPS navigation which uses an interacting multiple-model (IMM) estimator with a probabilistic data association filter (PDAF) improves navigation performance. The method includes (a)...
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7551132 |
GPS receiver with fast acquisition time
Method for acquiring a plurality of GPS signals, in which the signals received from the space vehicles are correlated, in an array of parallel processing modules ( 20 ) with local replicas of a...
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7551126 |
GNSS sample processor for determining the location of an event
An apparatus and method for determining a GNSS position of an event where an event capture device writes a short burst of GNSS signal samples with an approximate time into an event data file and a...
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7545317 |
Method and apparatus for navigation data downloads from weak signals
The present invention provides systems and methods that enable a standalone receiver capable of downloading navigation data under weak signal conditions. In an embodiment, a standalone navigation...
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7545319 |
Configurable satellite positioning system receivers with programmable inputs
Generic SATPS receivers and methods for configuring generic SATPS receivers that include a plurality of outputs are provided. These configurable SATPS receivers are adapted to be utilized in at...
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7545850 |
Analog compression of GPS C/A signal to audio bandwidth
The present invention discloses analog methods and circuits for compression of the GPS C/A signal to audio bandwidths to improve TTFF times, as well as decreasing auto correlation errors in systems...
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7545316 |
Apparatus and methods to share time and frequency data between a host processor and a satellite positioning system receiver
Methods and apparatus to share time and frequency data between a host processor and a satellite position system (SPS) receiver in a satellite positioning system are disclosed. An example method...
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7545894 |
Method and apparatus for detecting and processing global positioning system (GPS) signals
A method acquires a location system signal that includes second data signals superimposed on the first data signals. The method includes iterating Doppler frequency offset values and time offsets...
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7538725 |
GPS positioning method and GPS position device
In the present invention, a conditional probability distribution function of received signal which is conditioned with a received signal amplitude (a), a pseudo range (p) and a navigation bit (b m...
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7535417 |
Enhancing time keeping accuracy for low power GPS receivers
A mobile device including a positioning device for determining position by timing analysis of received signals, the positioning device including a system for determining timing accuracy, the system...
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7535414 |
Navigational positioning without timing information
Provided herein are systems and methods that enable a navigation receiver to determine receiver position using a low ppm (Parts Per Million) Real Time Clock (RTC) under weak satellite signal...
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7532159 |
Fast time to first fix by calibration of a real time clock
A generic navigation satellite system (GNSS) signal receiver having a fast time to first fix by calibrating a low power always-on real time clock (RTC). The receiver includes an RTC calibrator...
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7528771 |
Method and system for GPS position measuring and frequency error detecting method
A receiver terminal receives a frequency from an external reference oscillator portion, which is more accurate than that of a frequency generated within the receiver in a local oscillator portion....
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7525481 |
Performance of a receiver in interfering conditions
A device 20 includes a receiver 21 for receiving and processing signals at least in a first frequency band and an antenna 216 which is connected to the receiver 21 . In order to improve the...
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