Class / Patent application number | Description | Number of patent applications / Date published |
324226000 | Combined | 16 |
20080246469 | PORTABLE ELECTRONIC DEVICE - A portable electronic device includes a body, a flippable unit, a pivoting shaft, a first magnetizable element, a second magnetizable element, a magnetic induction sensor IC, and a magnet. The pivot shaft connects the body and the flippable unit. A display is disposed in the flippable unit for showing an image. The magnetic induction sensor IC is disposed in the body. The magnet is disposed at and rotatable with the pivoting shaft. The first and the second magnetizable elements are disposed between the magnet and the magnetic induction sensor IC to enlarge the magnetic field of the magnet such that the magnetic induction sensor IC is capable of detecting change of the magnetic field of the magnet when the flippable unit together with the magnet is pivoted relative to the body. | 10-09-2008 |
20080258718 | PRESSURE SENSING DEVICE FOR ROTATABLY MOVING PARTS AND PRESSURE DETECTION METHOD THEREFOR - A magnetic pressure sensing device for rotatably moving parts, of the type including at least one magnetic field source element associated to said rotatably moving part and a magnetic field sensing element associated to a fixed part to measure parameters of a magnetic field determined by said magnetic field source element, said parameters of the magnetic field being a function of the pressure applied to said rotatably moving part. The magnetic field source element includes means for rotating around at least one axis the direction of said magnetic field as a function of the pressure applied to said rotatably moving part. | 10-23-2008 |
20080284422 | Method and Device for Analyzing Distribution of Coercive Force in Vertical Magnetic Recording Medium Using Magnetic Force Microscope - In a coercive force distribution analysis device, a magnetic field is applied in substantially vertical direction to a sample having a magnetic thin film capable of recording vertical magnetism. A magnetic flux detection signal is generated in accordance with the leaking magnetic flux generated from a magnetic domain of the sample surface while the sample is horizontally moved. A first and a second external magnetic field corresponding to a first and a second threshold value selected from hysteresis characteristic corresponding to the sample average magnetization are applied to the sample so as to generate image data on a first and a second magnetic domain. The first and the second image data are subjected to digitization processing by the first and the second threshold value and the difference between them is generated as a first coercive force distribution pattern. | 11-20-2008 |
20100026284 | Element for Generating a Magnetic Field - An element for generating a magnetic field, having an annular frame for receiving an annular magnet which rotates with a turboshaft. The magnet is mounted in the frame such that the frame stabilizes and guides the magnet mechanically. In order to specify an element for generating a magnetic field which reliably fixes and guides the magnet, the magnet is connected to the frame by at least one spot weld. | 02-04-2010 |
20100039105 | MAGNETIC OSCILLATOR BASED BIOSENSOR - A biosensor is described. The biosensor includes a fixed multilayer stack providing a magnetization oscillation, a voltage source electrically coupled to the fixed multilayer stack, and a binding molecule covalently bonded to the biosensor. The voltage source provides a direct current through the fixed multilayer stack to generate the magnetization oscillation and a target molecule including a magnetic nanoparticle forms a complex with the binding molecule and alters the magnetization oscillation. | 02-18-2010 |
20110062952 | METHOD FOR ESTIMATING THE WEIGHT OF THE CONTENTS OF A HOUSEHOLD APPLIANCE - A method for estimating the value of the weight of the contents of the oscillating assembly of an electronically controlled household appliance is provided. The oscillating assembly is connected to a frame by a suspension system having a damper. The damper includes at least two mechanical elements adapted to move reciprocally, a magnetic element which detects reciprocal motion, depending upon the distance between the two elements, the magnetic sensor generates an electrical signal. A reading of an initial value of an electric parameter, is taken when the oscillating assembly is empty. A mathematical function is identified on the basis of the initial value and of a plurality of predetermined parameters, which relate the electrical parameter to the weight of the contents. A second reading is taken when contents have been loaded in, and the value of the weight of the contents is estimated by using the mathematical function and electric parameters. | 03-17-2011 |
20130154630 | CURRENT SENSOR - A current sensor includes: a first magnetic sensor and a second magnetic sensor; a first analog-to-digital converter which is connected to the first magnetic sensor and converts an output signal of the first magnetic sensor from an analog signal to a digital signal so as to be output; a second analog-to-digital converter which is connected to the second magnetic sensor and converts an output signal of the second magnetic sensor from an analog signal to a digital signal so as to be output; and an operation device which is connected to the first analog-to-digital converter and the second analog-to-digital converter, and outputs an operation value by subjecting the output signal of the first analog-to-digital converter and the output signal of the second analog-to-digital converter to differential operation. | 06-20-2013 |
20130154631 | CURRENT SENSOR - A current sensor includes: a conductive member through which a current to be measured flows; first and second magnetic sensors which output output signals having reversed phases to each other due to an induction magnetic field from the current to be measured; and a control unit which performs differential operation on the output signal of the first magnetic sensor and the output signal of the second magnetic sensor, wherein sensing axis directions of the first magnetic sensor and the second magnetic sensor are fixed in the same direction, form a predetermined angle with respect to an application direction of the induction magnetic field from the current to be measured applied to the first magnetic sensor and the second magnetic sensor, and are fixed so that the induction magnetic fields are applied to the first magnetic sensor and the second magnetic sensor in reverse directions to each other. | 06-20-2013 |
20130241540 | Apparatus, Sensor Circuit, and Method for Operating an Apparatus or a Sensor Circuit - A sensor system comprises a sensor element adapted to sense at least one physical quantity, wherein the sensor element is adapted to generate a sensor signal in response to the at least one physical quantity, an evaluation circuit adapted to detect a manipulation of the sensor system based on the sensor signal and stored reference values and to output an indication signal in response to a detected manipulation and a package, the package housing at least the sensor element and the evaluation circuit. | 09-19-2013 |
20140167747 | WELDED PORTION QUALITY DETERMINING SYSTEM - A welded portion quality determining system includes a first plate and a second plate, a welded portion defined at a point where the first plate and the second plate are welded to each other. Magnetic field generators generate a magnetic field to be supplied to the welded portion, and magnetic pickup devices receive the magnetic field generated by the magnetized welded portion to sense the received magnetic field. | 06-19-2014 |
20150097558 | COVER OPENING DETECTION WITH HALL SENSOR - A display terminal, an apparatus for cover opening detection, and a method of arranging a Hall sensor in a display terminal are provided. A display terminal includes a first body, and a Hall sensor disposed in the first body, the Hall sensor including a magnetic field sensing surface configured to sense a magnetic field, in which the magnetic field sensing surface is disposed at a slope with respect to an front surface of the first body. | 04-09-2015 |
20150115943 | APPARATUS USING HALL SENSOR - An apparatus and a method of determining a status of a cover of a display terminal are provided. The apparatus includes a terminal comprising a display screen, and a Hall sensor comprising a magnetic field sensing surface and a plurality of Hall elements disposed substantially parallel with the magnetic field sensing surface, the magnetic field sensing surface being substantially perpendicular to the display screen. | 04-30-2015 |
20160131788 | FERROMAGNETIC INCIDENT DETECTING AND LOGGING ARRANGEMENT - An arrangement for association with an MRI and detecting presence of ferrous material and discriminating out far field magnetic disturbance. The arrangement includes a detector configured to monitor the magnetic field and includes an array of sensors arranged about the periphery of an opening in a spaced arrangement such that each sensor is associated with a different portion of the opening. Each of the sensors is configured to output a signal having a value indicative of the sensed magnetic field at the associated portion of the opening. The arrangement includes a corrector configured to correct each signal value from the change in response to the far field magnetic disturbance and to provide respective corrected signal values. The arrangement includes a processor configured to use the corrected signal values to determine a ferrous-indicating limit is exceeded and to provide a safety response that addresses the ferrous-indicating limit exceed condition. | 05-12-2016 |
20160164463 | MAGNETORESISTIVE MIXER - A magnetoresistive mixer, comprising a spiral coil, a bridge-type magnetoresistive sensor and a magnetic shielding layer, wherein the spiral coil is located between the bridge-type magnetoresistive sensor and the magnetic shielding layer. Four tunnel magnetoresistive sensor units forming the bridge-type magnetoresistive sensor respectively contain N array-type magnetic tunnel junction rows. The magnetic tunnel junction rows are connected in series, parallel, or combination of series and parallel connections to form two port structures. The four tunnel magnetoresistive sensor units are respectively located in two regions of the spiral coil having opposite current directions, sensing axes of magnetic tunnel junctions are perpendicular to the current directions, and in addition, the distribution characteristics of magnetic fields in directions of the sensing axes of the tunnel magnetoresistive sensor units to the magnetic field in the two regions are opposite, and the distribution characteristics in a single region are the same. The first frequency signal is input through the two ends of the spiral coil, the second frequency signal is input between the power and -ground ports of the bridge-type magnetoresistive sensor, and mixing signals are output through a signal output end of the bridge-type magnetoresistive sensor. The magnetoresistive mixer has the characteristics of good linearity, good input signal isolation, and low power consumption. | 06-09-2016 |
20160377576 | Method for eddy current testing - A method for testing the integrity of a component in a measurement area of the component, using an instrument having a flexible part and a rigid end part following the flexible part and carrying an eddy current probe. The method comprises a selection step in which a template corresponding to the measurement area is selected, a shaping step in which the flexible part is shaped against the template thus selected, a positioning step, in which the instrument thus shaped is positioned so that the eddy current probe is placed in the measurement area, and a measurement step, in which a measurement is made via the eddy current probe which has been thus positioned. | 12-29-2016 |
20190145932 | METHODS OF USING NONDESTRUCTIVE MATERIAL INSPECTION SYSTEMS | 05-16-2019 |