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Match Document Document Title
9229084 Magnetometer calibration  
A real-time calibration system and method for a mobile device having an onboard magnetometer uses an estimator to estimate magnetometer calibration parameters and a magnetic field external to the...
9036884 Image intensity correction for magnetic resonance imaging  
A magnetic resonance system includes a magnetic resonance scanner having a multi-channel transmit coil or coil system and a magnetic resonance receive element; and a digital processor configured...
9030192 System and method for calibrating a magnetometer on a mobile device  
A method and system are provided for calibrating a magnetometer on a mobile device. The method includes obtaining one or more pairs of magnetometer readings. Each pair includes a first reading and...
9024622 Magnetic field sensor calibratable during measurement operation and method for calibrating a magnetic field sensor during measurement operation  
A magnetic field sensor for detecting first, second, and third spatial components of a magnetic field at a reference point includes a first sensor element arrangement for detecting the first...
9024628 Steering system  
A steering system includes a steering shaft an electric motor that assists a steering component; a torque detection device that generates a first detection signal according to a steering torque;...
9018941 Biasing circuit for a magnetic field sensor, and corresponding biasing method  
Described herein is a biasing circuit for a magnetic-field sensor; the magnetic-field sensor is provided with a first detection structure, which generates a first electrical detection quantity as...
9013175 Reading circuit for a magnetic field sensor with sensitivity calibration, and related reading method  
A reading circuit for a magnetic-field sensor, generating an electrical detection quantity as a function of a detected magnetic field and of a detection sensitivity, is provided with an...
9007053 Circuitry for and a method of compensating drift in resistance in eddy current probes  
Disclosed is an eddy current non-destructive inspection device which includes an eddy current probe with a probe conductor resistance dynamically changing due to operation conditions, such as...
9000754 Method for determining an exciter conductor spacing from a magnetic field sensor, method for calibrating the magnetic field sensor as well as calibratable magnetic field sensor and usage of an exciter conductor structure for determining an exciter conductor spacing  
In determining an exciter conductor spacing of an exciter conductor of an exciter conductor structure from a sensor element of a calibratable magnetic field sensor, first and second electric...
9000763 3-D magnetic sensor  
One embodiment of the present invention relates to a magnetic field sensor comprising a squat soft-magnetic body disposed on a surface of a substrate comprising a magnetic sensor array having a...
8963538 Magnetometer test arrangement and method  
Manufacturing of magnetometer units (20′) employs a test socket (41) having a substantially rigid body (43) with a cavity (42) therein holding an untested unit (20) in a predetermined position...
8952682 System and method for calibrating a magnetometer with visual affordance  
A method and system are provided for calibrating a magnetometer of a mobile device. The method comprises displaying a visual indication of a gestural path on a display of the portable electronic...
8947101 Method and system for measuring the resistance of a resistive structure  
Method and system for measuring the resistance of a resistive structure having at least three nodes. A first calibration signal is determined by measuring a voltage at an output of the resistance...
8933690 Angle detection apparatus  
According to an embodiment of the invention, an angle detection apparatus detects the angle of a rotation axis of a rotating device to generate a first signal and a second signal perpendicular to...
8928309 System and method for operating a mobile device having a magnetometer using error indicators  
A method and system are provided for operating a mobile device having a magnetometer. The method includes obtaining a plurality of error indicators associated with the magnetometer. At least two...
8922198 System and method for calibrating a magnetometer according to a quality threshold  
A method and system are provided for calibrating a magnetometer. The method comprises determining a current quality level associated with magnetometer readings obtained using an active set of...
8829893 Linear position sensor  
In general, the disclosure is directed to techniques for determining the position of a piston within a linear actuator, such as a hydraulic cylinder, in a more cost effective and less...
8781739 Systems and methods for using magnetic field readings to refine device location estimates  
Systems and methods for using magnetic field readings to refine device location estimates are provided. As an example, a plurality of magnetic field readings can be collected by a device as it...
8766623 Magnetic-field sensor including a plurality of magnetoresistive sensor elements and method of calibrating a magnetic-field sensor  
A magnetic-field sensor and a method of calibrating a magnetic-field sensor are disclosed. In one embodiment the method includes supplying the measurement arrangements with an excitation signal to...
8754640 Magnetic field sensors and related techniques that can provide self-test information in a formatted output signal  
A magnetic field sensor can provide an output signal indicative of a passing condition or a failing condition of the magnetic field sensor. The output signal has one of a variety of output signal...
8727696 Calibration of an actuator for a variable geometry turbine  
A variable geometry turbine of the kind used in a turbocharger has a variable geometry element such as a nozzle ring or an annular array of swing vanes that is operated by an actuator. The...
8723509 Electromagnetic position and orientation sensing system  
Magnetic tracking systems and methods for determining the position and orientation of a remote object. A magnetic tracking system includes a stationary transmitter for establishing a reference...
8723512 Circuits and methods for generating a threshold signal used in a magnetic field sensor based on a peak signal associated with a prior cycle of a magnetic field signal  
A circuit to detect a movement of an object includes a magnetic field sensing element for generating a magnetic field signal proportional to a magnetic field associated with the object and a...
8723507 Method and apparatus for performing in-package sensor adjustments  
An illustrative packaged magnetic field sensor includes a power input terminal and a sensor output terminal, both accessible from outside of the package housing. A sensing block is situated in the...
8717009 Magnetometer calibration  
A real-time calibration system and method for a mobile device having an onboard magnetometer uses an estimator to estimate magnetometer calibration parameters and a magnetic field external to the...
8710825 Method and system of a sensor interface having dynamic automatic gain control  
Embodiments of the invention described herein provide a magnetic sensor interface capable of adjusting signal conditioning dynamically such that the true positive and negative peaks of the input...
8692546 Circuits and methods for generating a diagnostic mode of operation in a magnetic field sensor  
A magnetic field sensor includes a diagnostic circuit that allows a self-test of most of, or all of, the circuitry of the magnetic field sensor, including a self-test of a magnetic field sensing...
8686715 Impedance compensation method for giant magneto-impedance magnetic sensors to null out the terrestrial residual magnetic field  
The invention is a method, described with the appropriate auxiliary electronic circuitry, for compensating the effect of the earth's magnetic field on Giant Magneto-Impedance magnetic sensors. The...
8680846 Circuits and methods for self-calibrating or self-testing a magnetic field sensor  
A magnetic field sensor includes a reference-field-sensing circuit channel that allows a calibration or a self-test of the circuitry of the magnetic field sensor. The magnetic field sensor can...
8653824 Delta temperature test method and system  
A method for quasi-static testing a magnetic recording head read sensor is described. The method includes applying a first voltage to a heater in the magnetic recording head and measuring an...
8633685 System and method for measuring alignment errors of shafts  
The invention concerns a system for measuring the alignment error of two axles provided with a first and a second coupling part by means of a biaxial orthogonal magnetic sensor system comprising a...
8614572 Integrated magnetic field generation and detection platform  
An integrated magnetic field generation and detection platform is described that is capable of manipulating and detecting individual magnetic particles, such as spherical super-paramagnetic beads,...
8604777 Current sensor with calibration for a current divider configuration  
An integrated circuit (IC) current sensor that self-calibrates to adjust its signal gain when employed in a current divider configuration is presented. The current sensor includes an integrated...
8575878 Energy converter  
An energy converter includes a magnetism generation mechanism unit that generates a magnetic field when connected to an AC electrical power source, and a rotating mechanism unit having a single...
8577640 Magnetometer bias and anomaly detector  
The computer implemented method, system or computer program product comprises collecting magnetometer data from the device; and calculating a center of a shape of the magnetometer data as a result...
8558537 Method to test the measurement accuracy of at least one magnetic field sensor using a semiconductor chip having a measurement coil  
In a process for testing the measurement accuracy of at least one magnetic field sensor, in particular during manufacturing, a semiconductor wafer that has at least two semiconductor chips is...
8560259 Dynamically self-adjusting magnetometer  
A dynamically self-adjusting magnetometer is disclosed. In one embodiment, a first sample module periodically generates an electronic signal related to at least one magnetic field characteristic...
8554503 Method for calibrating a thickness gauge  
A method for calibration of a thickness gauge is provided in which the thickness gauge measures the thickness of a measured object in a stipulated measurement direction with at least one...
8542010 Circuits and methods for generating a diagnostic mode of operation in a magnetic field sensor  
A magnetic field sensor includes a diagnostic circuit that allows a self-test of most of or all of, the circuitry of the magnetic field sensor, including a self-test of a magnetic field sensing...
8532952 Processes to create discrete corrosion defects on substrates and establish corrosion NDI test standards  
Methods and apparatuses are provided for creation of discrete corrosion defects with a wide range of diameter to depth aspect ratios for painted test standards. Also provided are methods for use...
8485014 Apparatus and methods for imbalance compensation  
Provided are apparatus and methods for compensation of mechanical imbalance in a measurement apparatus, that provides options for increased accuracy and/or less expensive manufacture of a torsion...
8476896 Method and sensor arrangement for determining the position and/or change of position of a measured object relative to a sensor  
A method for determining the position and/or change of position of a measured object relative to a sensor, where the sensor preferably has a sensor coil to which an alternating current is applied,...
8456160 Three axis field monitor  
The gauss meter devices of the present invention are small, low power 3 axis field monitor board which detects DC to slow varying magnetic fields. The unit is designed to be embedded into a system...
8448490 Processes to create discrete corrosion defects on substrates and establish corrosion NDI test standards  
Methods and apparatuses are provided for creation of discrete corrosion defects with a wide range of diameter to depth aspect ratios for painted test standards. Also provided are methods for use...
8432156 System and method for obtaining magnetometer readings for performing a magnetometer calibration  
A system and method of obtaining magnetometer readings for performing a magnetometer calibration are provided. The method comprises detecting initiation of a magnetometer calibration; displaying a...
8423228 Apparatus and method for detecting decrease in tire air pressure and program for detecting decrease in tire air pressure  
An apparatus for detecting a decrease in air pressure of a tire attached to a vehicle includes a rotation speed detection means for periodically detecting rotation speeds of tires of respective...
8421445 Position detecting system and position detecting method  
A system includes an object in a space to generate an induced field; coils that generate a driving field; a detecting coil that detects a synthetic field of the driving field and the induced...
8415947 Method for stress assessment that removes temperature effects and hysteresis on the material property measurements  
An apparatus for the nondestructive measurement of materials that includes at least two layers of electrical conductors. Within each layer, a meandering primary winding is used to create a...
8405385 Temperature and drift compensation in magnetoresistive sensors  
Double modulation of a magnetoresistive sensor entails modulating both an excitation (e.g., voltage or current) applied to the sensor and a tickling magnetic field applied to the sensor. The...
8368389 Sensor unit  
In a sensor of a sensor unit in which working voltage or calibration voltage is supplied through a single input end, working voltage can be stably supplied to the sensor after initial calibration....

Matches 1 - 50 out of 392 1 2 3 4 5 6 7 8 >