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Class Information
Number: 702/93
Name: Data processing: measuring, calibrating, or testing > Calibration or correction system > Direction (e.g., compass) > By another sensor
Description: Subject matter wherein the calibration or correction is performed based on measurements of a secondary sensor.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7359776 |
Apparatus for correcting and diagnosing angular rate sensors installed in an automotive vehicle |
Apr. 15, 2008 |
| 7275008 |
Calibration of 3D field sensors |
Sep. 25, 2007 |
| 7254503 |
Light source wavelength correction |
Aug. 7, 2007 |
| 7233873 |
Rotor position detection in an electrical machine |
Jun. 19, 2007 |
| 7155836 |
Method and apparatus for using magnetic field |
Jan. 2, 2007 |
| 7117111 |
Adjusting method of a tilt meter |
Oct. 3, 2006 |
| 6931339 |
Compass and communication system |
Aug. 16, 2005 |
| 6868360 |
Small head-mounted compass system with optical display |
Mar. 15, 2005 |
| 6850859 |
Sensor drift compensation by lot |
Feb. 1, 2005 |
| 6763293 |
Calibration procedure for a permanently powered relative steering wheel angle sensor with power-loss indication |
Jul. 13, 2004 |
| 6634207 |
Accelerometer compensation in an inertial navigation system |
Oct. 21, 2003 |
| 6449572 |
Method and device for classifying the driving style of a driver in a motor vehicle |
Sep. 10, 2002 |
| 6401036 |
Heading and position error-correction method and apparatus for vehicle navigation systems |
Jun. 4, 2002 |
| 6401047 |
System using information on a communications bus to eliminate magnetic noise |
Jun. 4, 2002 |
| 6253154 |
Method and apparatus for navigating with correction of angular speed using azimuth detection sensor |
Jun. 26, 2001 |
| 6192315 |
Dual-calibrated compass |
Feb. 20, 2001 |
| 6128585 |
Method and apparatus for calibrating a noncontact gauging sensor with respect to an external coordinate system |
Oct. 3, 2000 |
| 6047237 |
Compass precalibration method |
Apr. 4, 2000 |
| 5908466 |
Method of determining a directional change during vehicle navigation, apparatus for carrying out such a method, and vehicle comprising such an apparatus |
Jun. 1, 1999 |
| 5890099 |
Apparatus for measuring a turning rate, particularly of a motor vehicle |
Mar. 30, 1999 |
| 5862517 |
System for re-registering a sensor during a live event |
Jan. 19, 1999 |
| 5850625 |
Sensor fusion apparatus and method |
Dec. 15, 1998 |
| 5828980 |
Coning compensation in strapdown inertial navigation systems |
Oct. 27, 1998 |
| 5828984 |
Data processing method for an electronic compass system |
Oct. 27, 1998 |
| 5748505 |
Method and apparatus for calibrating a noncontact gauging sensor with respect to an external coordinate system |
May. 5, 1998 |
| 5487009 |
Method for determining the course of a land vehicle by comparing signals from wheel sensors with signals of a magnetic sensor |
Jan. 23, 1996 |
| 5485385 |
Magnetic azimuth sensor compensation apparatus for vehicle navigation system and method thereof |
Jan. 16, 1996 |
| 5479161 |
Automatic calibration of redundant sensors |
Dec. 26, 1995 |
| 5440484 |
Calibration method for a relative heading sensor |
Aug. 8, 1995 |
| 5422817 |
Strapdown inertial navigation system using high order |
Jun. 6, 1995 |
| 5367898 |
Method of calculating scale factor of gyro |
Nov. 29, 1994 |
| 5331578 |
Procedure for measuring angles and trajectories by means of gyros and inertial systems |
Jul. 19, 1994 |
| 5319561 |
Apparatus for estimating current heading using magnetic and angular velocity sensors |
Jun. 7, 1994 |
| 5301114 |
Inertial navigation system including self-contained performance validating arrangement |
Apr. 5, 1994 |
| 5287628 |
Omni range inclino-compass |
Feb. 22, 1994 |
| 5287297 |
Magnetic direction finder with correcting circuit |
Feb. 15, 1994 |
| 5283743 |
Vehicle-direction measuring apparatus |
Feb. 1, 1994 |
| 5270959 |
Bias correction apparatus of gyro |
Dec. 14, 1993 |
| 5235514 |
Apparatus for estimating current heading using magnetic and angular velocity sensors |
Aug. 10, 1993 |
| 5172323 |
Apparatus for determining the attitude of a vehicle |
Dec. 15, 1992 |
| 5172322 |
Vehicular traveling direction measuring system with automatic center coordinate position correction |
Dec. 15, 1992 |
| 5170354 |
Vehicular traveling direction measuring system with automatic center coordinate position correction |
Dec. 8, 1992 |
| 5065612 |
Method of correcting zero point of gyro and apparatus therefor |
Nov. 19, 1991 |
| 5023799 |
Vehicular traveling direction measuring system |
Jun. 11, 1991 |
| 5001647 |
Inertial transformation matrix generator |
Mar. 19, 1991 |
| 4870602 |
Method for determining route angles |
Sep. 26, 1989 |
| 4862398 |
Correcting method and correcting errors in a terrestrial magnetism heading sensor |
Aug. 29, 1989 |
| 4831563 |
Method of processing output data from geomagnetic sensor |
May. 16, 1989 |
| 4800501 |
Vehicle land navigating device |
Jan. 24, 1989 |
| 4793187 |
Circuit arrangement for the compensation of temperature-dependent and temperature-independent drift and for the compensation of the sensitivity of a capacitive sensor |
Dec. 27, 1988 |
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