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Match Document Document Title
7391363 System and method for augmentation of satellite positioning systems  
A system and a method for augmentation of satellite positioning systems wherein a monitoring ground station (MGS) is connected to a computer center in charge of determining the level of error of a...
7386395 Systems and methods for shock compensation utilizing an adaptive control technique algorithm  
A method for providing dynamic disturbance compensation to an inertial system is described. The method includes determining estimated correction factors based on received acceleration components,...
7365678 Determining usability of a navigation augmentation system  
In one aspect, the invention is the system for assessing a navigation augmentation environment. The system includes a reference station for receiving messages from a satellite. The reference...
7336225 Synthetic phase processor for controlling accuracy of high integrity GPS positions  
A positioning system or synthetic phase processor or rover station for providing high integrity positions with graduated accuracies. The positioning system includes one or more real time kinematic...
7308276 Method for locating mobile units based on received signal strength ratio  
Location of mobile units in a wireless local area network is based on use of signal strength ratios and other criteria. In one embodiment absolute value of signal strength is used to derive a...
7292185 Attitude determination exploiting geometry constraints  
A method and system for determining at least one attitude angle of a rigid body. The method comprising: receiving a plurality of Global Navigation Satellite System (GNSS) satellite signals with a...
7277048 Asset tracking method  
The present invention relates to a system for managing assets such as vehicles and/or equipment in an area such as a repair yard or parking lot. A plurality of mobile devices periodically wake-up...
7269429 Communications protocol for mobile device  
A communication device and method for operating the same includes a GPS receiver that periodically generates a position signal, a wireless modem transmitting or receiving messages and a controller...
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...
7259717 Method and device for determining the relative position of two points  
The invention relates to a method for determining the relative position of a mobile in relation to the known position of a reference station. The relative position calculation comprises the steps...
7256730 Method and system for real time navigation using satellite transmitted three-carrier radio signals and ionospheric corrections  
The invention concerns a real-time navigation method for locating a rover using three-carrier radio signals of three different frequencies to determine the position of a user, transmitted by...
7248211 Moving reference receiver for RTK navigation  
A method and system are provided to determine a relative position vector between primary receiver associated with a reference station and secondary receiver associated with a user. The method and...
7242347 Low power detection and compensation for satellite systems  
A system is provided for detecting a low-power error condition in a local area augmentation system (LAAS). The system receives a radio signal from a global positioning system (GPS) satellite and...
7233798 Method and apparatus for determining location of a remote unit using GPS  
To address the need for faster location determination by GPS-equipped units, this application describes embodiments of the present invention that provide GPS-assist data to a remote unit ( 110 )...
7228138 Methods, servers, mobile stations, and computer program products using GPS referenced time and delay information in messages for GPS time assistance  
A message is transmitted from a networked GPS time server to a mobile station, the message includes GPS referenced time information indicating an elapsed GPS referenced time interval at the...
7227496 GPS rover station having position dithering for controlling accuracy of secure positions  
A positioning system or synthetic phase processor or rover station for providing high integrity positions with graduated accuracies. The positioning system includes one or more real time kinematic...
7221909 Method for guiding wireless communication device into communicable range and wireless communication device  
A personal digital assistant (PDA) detects its position by a two-axis acceleration sensor provided therein. While the PDA is within a communicable range where the PDA can communicate with the...
7221314 Estimation and resolution of carrier wave ambiguities in a position navigation system  
A method and apparatus for resolving floating point and integer ambiguities in a satellite position navigation system is disclosed. A rover station is periodically positioned at unknown locations...
7218278 Procedure for guiding an aircraft in the approach phase and corresponding ground beacon  
The invention relates to a procedure for guiding an aircraft in the approach phase comprising of receiving information on a predefined approach path, this information being contained in a message M...
7184744 GPS enabled emergency messaging system  
A GPS enabled Emergency Messaging System (GEMS) includes: Emergency Response Centers (ERC's) for defining emergency broadcast messages directed to specified geographic areas; a GPS Control Segment...
7164985 Vehicle-direction estimating device, and driving control device including the vehicle-direction estimating device  
A vehicle serving as a moving station includes two GPS antennas disposed away from one another along the longitudinal direction within the vehicle. For automatic steering in the automatic-driving...
7164383 Navigation system using locally augmented GPS  
A local area augmentation navigation system for determining the location of an object using differential GPS. The system does not require any significant power or communication infrastructure. The...
7142878 Method of timing calibration  
Disclosed is a method for deriving accurate global positioning satellite (GPS) timing by calibrating frame boundaries to GPS timing. Time calibration is achieved by determining a time difference...
7119741 Method for combined use of a local RTK system and a regional, wide-area, or global carrier-phase positioning system  
The present invention includes a method for a combined use of a local RTK system and a regional, wide-area, or global differential carrier-phase positioning system (WADGPS) in which disadvantages...
7116269 Radio and light based three dimensional positioning system  
A radio and light based 3-D positioning system comprising: a stationary integrated self-positioning radio transceiver/laser transmitter (RTR_LT) configured to receive a first plurality of external...
7110883 Space based augmentation system with hierarchy for determining geographical corrections source  
Systems, devices and methods are provided for determining the appropriate or desired geographical correction source for SBAS corrections. One aspect provided herein is a method. According to one...
7110762 System and method for using corrected signals from a global positioning system to perform precision survey  
In a differential global positioning system that includes one or more base stations and rover units, a system and method for including a radio modem transceiver in the rover units, and packaging...
7098846 All-weather precision guidance and navigation system  
A location of a target is generated by, at each of a plurality of reference sensors, receiving signals from a plurality of positioning system satellites. A set of error measurements are generated...
7091904 Tracker architecture for GPS systems  
A tracker architecture for Global Positioning System (GPS) receivers is disclosed. A typical tracker comprises an RF front end and GPS architecture. The architecture comprises a bus structure, a...
7089113 Subscription system for GPS information  
A GPS information service system for providing supplemental GPS location correction and signal acquisition information to subscribers. A GPS information server broadcasts GPS information encrypted...
7079075 GPS rover station for synthesizing synthetic reference phases for controlling accuracy of high integrity positions  
A positioning system or synthetic phase processor or rover station for providing high integrity positions with graduated accuracies. The positioning system includes one or more real time kinematic...
7071870 Method for combined use of local positioning system and a global positioning system  
The present invention includes a method for a combined use of a local RTK system and a regional, wide-area, or global differential carrier-phase positioning system (WADGPS) in which disadvantages...
7064706 Method and apparatus for assisted GPS  
A cellular network protocol that maintains the reliability of assisted GPS based positioning is taught. An Integrity Monitor (IM) informs mobile stations, their users, or networks of measurement...
7062305 Location identifying apparatus and method of identifying the location of a user  
In a survey system involving either differential global positioning (DGPS) or robotic total station (RTS) systems, the mobile station includes the radio system in the surveyor pole and either...
7042391 Mobile device and method for determining location of mobile device  
A mobile device, for determining location in a wireless network, includes a motion detector for detecting motion of the mobile device; a memory for storing wireless signal strength calibration data...
7019688 LAAS ground facility sigma monitor  
A 1-sigma pseudorange ground monitor (sigma monitor) is described. The sigma monitor calculates a weighted sum of squared deviations referred to as the discriminator for one or several reference...
6996420 Radio communication system, mobile terminal unit thereof, and azimuth determining method  
Disclosed are a mobile station unit which can obtain azimuth information with a simple construction and a radio communication system including the mobile terminal unit. According to the present...
6961018 Method and apparatus for satellite-based relative positioning of moving platforms  
The present invention is directed to the determination of a relative position between moving platforms, using satellite-based navigation techniques and equipment installed on said platforms. It...
6954175 Accurate positioning of devices suspended underwater from a floating body  
A system for determining the position of a device attached to a floating platform floating at the surface of a body of water. The system includes first and second navigation antennas mounted on the...
6950059 Position estimation using a network of a global-positioning receivers  
Disclosed are methods and apparatuses for determining the position of a roving receiver in a coordinate system using at least two base-station receivers, which are located at fixed and known...
6937865 Position detection system integrated into mobile terminal  
A wireless communications mobile terminal conserves bandwidth by determining which position detection assisting devices within a position detection system are available for use and limiting...
6903682 DGPS animal containment system  
An animal containment system includes a receiver unit carried by the animal. The receiver unit includes a GPS receiver for receiving satellite data; a memory for storing a plurality of waypoints...
6885940 Navigation processing for a satellite positioning system receiver  
A method for navigation processing in a satellite positioning system receiver is disclosed. A method in accordance with the present invention comprises separating the three SATPS satellites into a...
6879283 Method and system for transmission of real-time kinematic satellite positioning system data  
A method and system for communication in a real-time kinematic (RTK) positioning system by paging. An RTK positioning system having a reference station and a rover utilizes a paging system for data...
6865394 Location detection method, location detection system and location detection program  
A positioning method, which is related to a technique to measure a correct position of a terminal by preventing time required for the position measurement, of calculating a position of a receiver...
6861979 Method and apparatus for detecting anomalous measurements in a satellite navigation receiver  
A method and apparatus for detecting and correcting anomalous measurements in a satellite navigation receiver is disclosed. Anomalous measurements are detected using the redundancy of observed...
6853916 Method and apparatus for forming a pseudo-range model  
A method and apparatus for locating mobile device over a broad coverage area using a wireless communications link that may have large and unknown latency. The apparatus comprises at least one...
6816110 Precision positioning AGM system  
A precision positioning AGM system is provided for detecting the location of an AGM device, as well as the time of a smart pig passing the location. The practice combines two processes into one by...
6809684 Signal deformation monitor  
A signal deformation monitor that corrects for bias caused by receiver front end signal deformation is disclosed. The signal deformation monitor includes a correlator that determines a plurality of...
6809683 Portable tester for LAAS ground facility  
A portable tester verifies the operational status of a satellite-based navigation ground facility. The portable tester includes a receiver and a computer. In a preferred embodiment, the receiver...
Matches 1 - 50 out of 179 1 2 3 4 >