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7606665 System and method for employing an aided-alignment mode to align an inertial reference system  
A system and method for aligning an inertial reference system, which is coupled to a moveable body, is provided. The method includes obtaining unaided navigation state information from an unaided...
7509216 Inertial navigation system error correction  
Methods and apparatus for: (a) the correction of one or more elements determined from a first set of continuous gyro and accelerometer measurements comprising using a second set of discontinuously...
7471952 Data terminal device  
A position data receiving part receives position data transmitted from an artificial satellite. A wireless unit transmits and receives data with respect to a base station. A detailed map data...
7440830 Driving support system based on driver visual acquisition capacity  
In a driving support system, a necessary information amount determining section determines the amount of visual information necessary for safe driving. An information acquisition capacity setting...
7437242 Navigation apparatus  
A navigation apparatus mounted on a vehicle is equipped with a first gyro sensor and a second gyro sensor arranged in symmetry with respect to a first axis in a travel direction of the vehicle and...
7437230 Satellite based vehicle guidance control in straight and contour modes  
A method for steering an agricultural vehicle comprising: receiving global positioning system (GPS) data including position and velocity information corresponding to at least one of a position,...
7421343 Systems and methods for reducing vibration-induced errors in inertial sensors  
Systems and methods for reducing vibration-induced bias errors in inertial sensors are disclosed. A system for reducing bias errors in an inertial sensor operating within an environment may include...
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,...
7366612 Method and apparatus for compensating attitude of inertial navigation system and method and apparatus for calculating position of inertial navigation system using the same  
Provided are a method and apparatus for compensating an attitude of an inertial navigation system and a method and apparatus for calculating a position of the inertial navigation system using the...
7346450 Vehicle navigation apparatus for controlling map-matching areas  
A stop area is set in an arbitrary area where map matching processing is to be stopped, by an operation switch group or a remote controller. When a vehicle enters the stop area, the map matching...
7336963 Method and system for delivering location information through a voice messaging system  
A method and system for delivering location information through a voice messaging system is provided. A mobile subscriber may be directed to a voice messaging system if a party is unavailable or...
7310577 Integrated capacitive bridge and integrated flexure functions inertial measurement unit  
An inertia control system includes an integrated inertial measurement unit coupled to an inertial platform. The integrated inertial measurement unit includes three accelerometer gimbals/axes...
7305303 Personal navigation using terrain-correlation and/or signal-of-opportunity information  
A navigation system includes an inertial navigation unit. The navigation system also includes a Kalman filter that generates corrective feedback for use by the inertial navigation unit. The Kalman...
7280916 Method and apparatus for compensating for acceleration errors and inertial navigation system employing the same  
Provided are a method and apparatus for compensating for an acceleration error in an inertial navigation system (INS). The apparatus includes a motion detector that detects the motion of the INS...
7219013 Method and system for fault detection and exclusion for multi-sensor navigation systems  
A new Fault Detection and Exclusion (FDE) approach for tightly integrated GPS/inertial sensors that combines a normalized solution separation for fault detection and a residual monitoring scheme...
7133776 Attitude alignment of a slave inertial measurement system  
A method for attitude alignment of a slave inertial measurement system connected to a rotationally mobile platform supported by a vehicle that is stationary relative to a reference navigation frame...
7130744 Method for determining and compensating the scale factor error caused by a wavelength change in a GPS-based inertial navigation system  
In a GPS-supported inertial attitude and heading reference system equipped with a Kalman correction filter and a multiple axis fiber optic gyroscope, the invention provides for only that scale...
7120522 Alignment of a flight vehicle based on recursive matrix inversion  
A method for recursively determining alignment of a flight vehicle during flight is provided. The method includes generating data in a reference coordinate frame and in a second coordinate frame at...
7103477 Self-calibration for an inertial instrument based on real time bias estimator  
An exemplary inertial measurement apparatus incorporates self-calibrating bias correction signals. First and second inertial instruments generate respective input signals representative of an...
7026956 Method of integrating speed deviation cues in a vehicle navigation display  
A display system for a vehicle is provided. The display system includes a display configured to render a representation of an intended vehicle path. At least one relative speed indicator is...
6923059 Angular motion measurement arrangement  
An angular motion measurement system disposed on a movable platform having a first and second section, the system comprising a first and second measurement arrangement and a processor arrangement....
6912464 Inertial navigation accuracy enhancement  
Apparatus for the improvement of inertial navigation system (INS) position/velocity comprises frame stores for storing sequential images from a video camera and a comparator for comparing pixels in...
6879875 Low cost multisensor high precision positioning and data integrated method and system thereof  
The design of the low cost GPS/IMU positioning and data integrating method, which employs integrated global positioning system/inertial measurement unit enhanced with dual antenna GPS carrier phase...
6876926 Method and system for processing pulse signals within an inertial navigation system  
A method and system for processing pulse signals within an inertial device is provided. The inertial device may have inertial sensors, such as accelerometers and gyroscopes. The inertial sensors...
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...
6789014 Direct modification of DGPS information with inertial measurement data  
A global positioning system based navigation system for a ground vehicle, in particular an agricultural ground vehicle such as a tractor, combine, sprayer, or the like, includes an inertial...
6741209 Positioning system  
The invention provides a positional system intended to supplement positional information derived by means of a Global Positioning System (GPS), so as to provide positional data coverage in...
6704619 Method and system for universal guidance and control of automated machines  
A system for universal guidance and control of automated machines incorporates with an IMU (Initial Measuring Unit) installed at an end effector of a motion element of an automated machine,...
6675147 Input method for a driver information system  
A method for input of a sequence of letters and/or numbers in a driver information system provides for input of individual symbols of the sequence of letters and/or numbers either by input of...
6631323 Method and apparatus for improving performance of an inertial navigation system having global positioning system corrections  
Performance of an inertial navigation system (INS) corrected with GPS position data is enhanced with the addition of a filter that smooths the GPS-INS position difference data and couples the...
6615117 Attitude determination system and method with outer-loop gyro scale-factor non-linearity calibration  
A method and apparatus for calibrating rate sensor measurements to compensate for rate sensor scale factor non-linearities. An outer loop compensator compares current rate sensor scale factor...
6571171 Method and apparatus for graphically inserting waypoints for a flight management system  
An apparatus and method for inserting a waypoint into a preexisting flight plan which includes selecting a waypoint on a graphical display of a portion of the flight plan and automatically...
6496778 Real-time integrated vehicle positioning method and system with differential GPS  
A real-time integrated vehicle positioning method and system with differential GPS can substantially solve the problems encountered in either the global positioning system-only or the inertial...
6493631 Geophysical inertial navigation system  
An inertial navigation system employs geophysical (earth's magnetic and gravity) field sensors to measure body rotations of an aircraft or other vehicle. In effect, these replace expensive laser...
6459990 Self-contained positioning method and system thereof for water and land vehicles  
A positioning method and system for water and land vehicles is disclosed for highly accurate and self-contained operation. In which, an inertial navigation system (INS) is built on the micro MEMS...
6415223 Interruption-free hand-held positioning method and system thereof  
An interruption-free hand-held positioning method and system, carried by a person, includes an inertial measurement unit, a north finder, a velocity producer, a positioning assistant, a navigation...
6411868 Method for identifying a stationary state of a vehicle  
A method for distinguishing between a movement state and a rest state of a motor vehicle, in which the output signal of a sensor arranged in the vehicle is evaluated. The invention provides for the...
6401036 Heading and position error-correction method and apparatus for vehicle navigation systems  
The present invention provides methods and devices that enable correction of gyroscope bias and gyroscope bias drift in low-cost, vehicular navigation and positioning systems without using...
6397146 Acceleration compensation in a GPS-inertial navigation system  
The invention is a method and apparatus for compensating for acceleration in a GPS-inertial navigation system. A translated satellite signal is a satellite signal translated in the GPS receiver to...
6385540 Method for detecting road position of car in multiformation road  
The present invention provides a method for identifying a position of a vehicle on a multi-layer road, by which it is possible to judge whether the vehicle is running on an upper layer or a lower...
6317688 Method and apparatus for achieving sole means navigation from global navigation satelite systems  
A sole means global navigation apparatus adapted for use on an aircraft includes a GPS receiver to provide GPS measurement data and an inertial sensor system adapted to provide inertial...
6308134 Vehicle navigation system and method using multiple axes accelerometer  
The improved vehicle navigation system uses a multiple, orthogonal axes accelerometer, such as two or three accelerometers which are mounted orthogonal to one another. The two axes whose...
6292751 Positioning refinement algorithm  
A method is provided for correcting errors in position derived from an inertial measurement unit (IMU), by performing a first zero velocity update at a time when the IMU is at rest, recording the...
6292745 Method and system for forming a database of geographic data for distribution to navigation system units  
A method for forming a geographic database that can be used in a navigation system in which geographic data are transmitted in portions, as needed, from the geographic database to remotely located...
6289268 Attitude determination system and method  
A star tracker coupled to the spacecraft having a star catalog associated therewith. A sun sensor is coupled to the spacecraft. A control processor is coupled to the star tracker and the sun...
6285954 Compensation system  
The invention is a method and apparatus for obtaining an accurate value x 1c of a variable x 1 based on an estimate x 1e that is a function of K variables x 1 , x 2 , . . . , x k , . . . , x K ....
6272432 System and method for correcting star tracker low spatial frequency error in stellar-inertial attitude determination systems  
A system and method of estimating the attitude of a spacecraft compares a three-axis inertial-based estimate of spacecraft attitude to a stellar-based estimate of the spacecraft attitude. A Kalman...
6271789 Method for checking the reliability of nominal position indications  
A method for checking the reliability of nominal position findings on the basis of propagation time measurements. The method is characterized by the use of inertial systems to increase the...
6269306 System and method for estimating sensor errors  
A system 10 for estimating sensor error. In the preferred embodiment, the system 10 includes a module 12 and a linear neuron 14, and is adapted to accurately estimate scale factor and bias error of...
6253154 Method and apparatus for navigating with correction of angular speed using azimuth detection sensor  
An apparatus and method for more accurately determining the position of a moving object by using an azimuth detector distinct from an angular speed detector to correct the gain error and the offset...
Matches 1 - 50 out of 156 1 2 3 4 >