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7392134 |
Satellite navigation controller
A navigation device changes a position determination accuracy of a receiver for satellite navigation to a higher accuracy in the following cases: when the subject vehicle approaches a destination,...
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7391366 |
High sensitivity GPS receiver and method for compensating for Doppler variation
A global positioning system (GPS) receiver and method are provided for compensating for Doppler variation to accurately detect GPS signals in an environment in which intensities of the GPS signals...
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7382314 |
Handheld GPS device
A handheld GPS device has a device body. A base band processor is installed in the device body. Three antennas with high directivity are respectively installed perpendicular to three surfaces of...
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7365681 |
GPS receiver having a prescribed time-of-entry into an operation mode
A GPS receiver having a fast method for determining GPS clock time. The GPS receiver includes a signal processor for receiving GPS signals from GPS satellites and detecting current GPS data bits...
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7348922 |
Antenna system for a GPS receiver
An antenna system for a GPS receiver that includes a casing and a micro processor. The antenna system includes at least two antenna units, a micro controller, a switching unit and a signal...
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7348921 |
GPS receiver using stored navigation data bits for a fast determination of GPS clock time
A GPS receiver having a fast method for determining GPS clock time. The GPS receiver includes a signal processor for receiving GPS signals from GPS satellites and detecting current GPS data bits...
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7342533 |
Method and apparatus for obtaining satellite trajectory data at a satellite positioning system receiver
Method and apparatus for locating position of a mobile receiver is described. In one embodiment, satellite measurements are obtained at the mobile receiver for a plurality of satellites in a...
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7336224 |
Satellite positioning system receivers and methods
A satellite positioning system receiver having a battery, wherein the receiver is programmed to determine ( 310 ) whether the receiver is connected to a power supply other than its battery, to...
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7327311 |
Method of despreading GPS signals
A method of despreading GPS spread spectrum signals containing pseudorandom noise (PRN) code sequences and received by a GPS receiver ( 24 ) is disclosed together with a GPS receiver ( 24 ) and a...
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7324045 |
System and method for fast initialization of navigational satellite signal receivers
The present invention provides a method and apparatus for a satellite navigation receiver to lock onto satellite signals in the cold start mode with no information on the receiver position, the...
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7298326 |
Portable device and method employing beam selection to obtain satellite network positioning signals
A portable device, such as a handheld device ( 10 ), laptop device or other suitable portable device, employs an antenna beam selection structure that is coupled to a plurality of built-in antennas...
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7298324 |
Apparatus for and method of improving position and time estimation of radio location devices using calibrated pulse shapes
GPS receivers utilize reference pulse shapes in operations to determine estimates of position and time to correct for range biases in differential operations and in signal quality operations. The...
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7295156 |
Cellphone GPS positioning system
A mobile GPS location system. The location system includes a mobile radio transceiver for transmitting a radio positioning signal and receiving a responsive radio system signal having a radio...
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7295155 |
Satellite positioning apparatus and method
Available-satellite data indicating satellites available for satellite positioning is obtained from a GPS receiver, and satellites continuously available for satellite positioning in the current...
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7292867 |
Location-aware fitness training device, methods, and program products that support real-time interactive communication and automated route generation
A portable fitness device includes a global positioning system (GPS) receiver that receives GPS signals, a wireless wide-area network transmitter supporting communication over-the-air to a wireless...
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7292186 |
Method and system for synchronizing multiple tracking devices for a geo-location system
A method and system of synchronizing multiple tracking devices in a geo-location receiver system comprising: receiving a first plurality of geo-location signals with a first tracking device; and...
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7283091 |
Radio positioning system for providing position and time for assisting GPS signal acquisition in mobile unit
A mobile location system. The GPS location system includes a radio positioning system (RPS) for determining times-of-arrival at several locations for a radio positioning signal transmitted from a...
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7280071 |
Method and apparatus for computing position and velocity of receiver using independently-derived sets of satellites
A satellite-signal reception-processing apparatus for receiving signals, which each have completed a spectrum-spreading process using a spreading code, from a plurality of artificial satellites....
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7277054 |
Method for positioning, a positioning system, and an electronic device
A method for positioning a wireless communication device where position data of one or a plurality of reference points is stored into at least one data base, and which of the reference points is...
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7277049 |
Method for providing location aiding among peers operating in a direct communication mode
A mobile communication device ( 202 ) outside the service area of a communications network 210 in need of satellite positioning assistance information to perform a location determination ( 308 )....
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7272401 |
Apparatus and method for determining position information of user equipment
An apparatus for determining position information of one or more UEs (User Equipments), which includes a plurality of Node Bs for transmitting propagation signals to UEs positioned in a specific...
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7263440 |
Satellite based positioning method and system for coarse location positioning
A satellite based positioning method and system including storing satellite sub-almanac data on a mobile station. Embodiments include using the sub-almanac data to take measurements and calculate a...
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7257417 |
Method for determining a change in a communication signal and using this information to improve SPS signal reception and processing
Methods and apparatuses for determining a position of a mobile satellite positioning system (SPS) receiver which is coupled to a communication receiver or transceiver. In one exemplary method, a...
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7256733 |
Method and system for positioning signal acquisition assistance window evaluation
A system and method examines the quality of a positioning signal acquisition assistance window of an assisted position location system. The fit of acquisition assistance windows is examined using a...
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7250904 |
Navigation satellite acquisition in satellite positioning system receiver
A method in a mobile satellite positioning system receiver operating in cold-start mode, including searching for and detecting ( 310 ) a first satellite in a constellation of orbiting satellites,...
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7250903 |
GPS spoofer and repeater mitigation system using digital spatial nulling
A system and method using a multi-element digital beamformer for detection and mitigation of spoofer and repeater threats to GPS that would not be addressed by baseline signal-to-noise (SNR)...
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7246011 |
Combined parallel and sequential detection for GPS signal acquisition
A two part signal acquisition process includes a parallel signal detection process and signal verification/false alarm rejection process. A massively parallel architecture of acquisition...
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7242348 |
Satellite information update system, positioning auxiliary information provision device, positioning auxiliary information provision device control method, positioning auxiliary information provision device control program, and computer readable recording medium having recorded therein positioning auxiliary information provision device control program
A positioning auxiliary information provision device 30 has: a auxiliary information generation device to generate positioning auxiliary information including satellite information; a satellite...
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7239273 |
Apparatus and method for calculating satellite acquisition information to recognize position of mobile station
An apparatus for calculating satellite acquisition information for controlling a position determination entity (PDE) to determine a position of the MS in a network assisted GPS system comprising an...
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7215281 |
Wireless network assisted GPS system
A method and apparatus for locating a mobile communications device such as a cell phone includes apparatus for communicating with base stations and apparatus for communicating with satellites....
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7212157 |
Method for creating acquisition assistance information in assisted global positioning system
A method for creating acquisition assistance information (AA data) for acquiring of a global positioning system (GPS) signal in an assisted global positioning system (AGPS) is provided. The method...
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7209077 |
Global positioning system signal acquisition assistance
There is disclosed a method of determining a code phase search window for use by a satellite positioning system receiver associated with a mobile terminal of a communications network when acquiring...
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7196661 |
Security system including a method and system for acquiring GPS satellite position
A security system and a method and apparatus utilize a transmitter and a receiver with a GPS sub-system in a GPS appliance. Ephemeris and almanac data are updated at preprogrammed times within...
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7196660 |
Method and system for determining time in a satellite positioning system
Method and apparatus for receiving an estimate of time in a satellite signal receiver receives an estimate of time from a server and compensates for error of a clock in the satellite signal...
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7193560 |
GPS receiver
A GPS receiver is disclosed which has an omnidirectional antenna and a directional antenna and is configured to (i) acquire a first GPS signal from the output of the directional antenna, either...
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7190307 |
Fast reacquisition of a GPS signal
A receiver in receipt of a plurality of pseudo noise codes, where each of the pseudo noise codes originates from a GPS transmitter and a plurality of chips make tip each pseudo noise code with an...
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7183973 |
Culled satellite ephemeris information based on accurate distance in range calculations, for quick, accurate assisted locating satellite location determination
Locating satellites (e.g., GPS) are culled into a preferred group having a longest dwell time based on a time passing through an ellipsoid arc path through a cone of space, and communicated to...
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7180446 |
Continuous integration based satellite navigational signal acquisition
A method and device to acquire navigational satellite signals combines non-coherent and coherent integrations and can efficiently acquire both strong and weak signals. Successive steps eliminate...
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7161532 |
Satellite navigation method
A satellite navigation method determined the position of the receiver ( 1 ) by determining the signal travel time between the satellites ( 3, 4 ) and the receiver ( 1 ). Either the times of...
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7158080 |
Method and apparatus for using long term satellite tracking data in a remote receiver
Method and apparatus for using long term satellite tracking data in a remote receiver is described. In one example, long term satellite tracking data is received at a remote receiver from a server....
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7154438 |
Prioritized list of potential culled satellite ephemeris information for quick, accurate assisted locating satellite location determination
Locating satellites (e.g., GPS) are culled into a preferred group having a longest dwell time based on a time passing through an ellipsoid arc path through a cone of space, and communicated to...
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7148844 |
Global positioning apparatus and method for using a temperature compensated oscillator to perform a position fix
A global positioning receiver unit utilizes a temperature compensated oscillator and a unit controller. The temperature compensated oscillator generates a clock signal, and the unit controller is...
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7142157 |
Determining position without use of broadcast ephemeris information
Devices and methods are described for determining position information without broadcast ephemeris data for extended time periods. A server or client device receives or collects historical state...
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7142156 |
System and method for providing time to a satellite positioning system (SPS) receiver from a networked time server
System and method for enabling signal acquisition in a satellite positioning system (SPS) when signals from SPS satellites are attenuated by the operating environment of a SPS receiver. A preferred...
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7142155 |
GPS receiver
A GPS receiver calculates a position with as high accuracy as possible by appropriately setting a threshold of a reception level of the signal from each GPS satellite and a DOP threshold based on...
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7133745 |
Method for compensating rotational position error of robot cleaner
A method for compensating a rotational position error of a robot cleaner is disclosed to reduce a rotational position error of a robot cleaner by compensating an offset value of a gyro sensor of...
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7127351 |
Combined parallel and sequential detection for GPS signal acquisition
A two part signal acquisition process includes a parallel signal detection process and signal verification/false alarm rejection process. A massively parallel architecture of acquisition...
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7123190 |
Skipping z-counts and accurate time in GPS receivers
A navigation-satellite receiver comprises high-sensitivity radio frequency front-end and navigation processor associated with a client CPU. The client CPU runs an operating system that serially...
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7119742 |
Method and apparatus for estimating position utilizing GPS satellite signal
The invention is directed to an apparatus and method for determining or estimating position using GPS signals. The system includes a receiver such as a GPS receiver for receiving GPS signals and a...
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7116270 |
Method and system for multipath detection
A navigation system including a GPS receiver; a variable directivity antenna capable of forming a null point in at least one direction; a null point setting unit for setting the null point of the...
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