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| Number | Title | Issue Date |
| 8174256 | Methods and systems for magnetic field sensing One embodiment relates to a sensor. The sensor includes a first magnet having a first surface and a second magnet having a second surface. A differential sensing element extends alongside the first and second surfaces. The differential sensing element includes a fir... | 05/08/2012 |
| 8143884 | Current interface with a blocking capacitor attached to an additional pin It is described a current interface (100, 200) with a blocking capacitor (128, 228). The blocking capacitor (128, 228) is attached to an additional pin (115, 215), thus allowing a supply voltage ripple rejection of an internal sensor circ... | 03/27/2012 |
| 8125217 | Magnetoresistive array design for improved sensor-to-magnet carrier tolerances An AMR array magnetic position sensing method and system for improving sensor-to-magnet carrier misposition. A magnetic carrier can be provided, which maintains two or more magnets with angled magnetic vectors position above an array of AMR array sensors. The magnet... | 02/28/2012 |
| 8102172 | Position detector including magnetoresistive elements A circular top surface of a magnet is magnetized to the N-pole, and a back surface thereof is magnetized to the S-pole. A detector moves within the X-Y plane at positions located away from the top surface of the magnet. A pair of X-direction detecting elements and a... | 01/24/2012 |
| 8093886 | Rotation-angle-detecting apparatus A rotation-angle-detecting apparatus comprising a magnet rotor, a magnetic sensor detecting the direction of magnetic flux from the magnet rotor, a correction circuit, and an angle-calculating circuit, the magnetic sensor having bridge circuits X and Y each comprisi... | 01/10/2012 |
| 8076927 | Magnetic-field sensor and method of calibrating a magnetic-field sensor An embodiment of a magnetic-field sensor has a plurality of sensor elements connected to form measurement arrangements, each measurement arrangement having a measurement tap, and a control circuit formed to perform an embodiment of a method of calibrating the magnet... | 12/13/2011 |
| 8058866 | Off-center angle measurement system An angle measurement system including a magnet coupled to a rotating member and adapted to provide a magnetic field which rotates with the rotating member about a rotational axis of the rotating member, and an integrated circuit angle sensor disposed within the magn... | 11/15/2011 |
| 8054067 | Magnetic sensor and rotation-angle-detecting apparatus with a bridge circuit A magnetic sensor comprising a bridge circuit in which four magnetoresistive devices are connected, the magnetoresistive device comprising a spin-valve, giant-magnetoresistive film comprising a pinned layer having unidirectional magnetic anisotropy, a free layer who... | 11/08/2011 |
| 8049490 | Silicon MEMS resonator devices and methods Embodiments of the invention are related to MEMS devices and methods. In one embodiment, a MEMS device includes a resonator element comprising a magnetic portion having a fixed magnetization, and at least one sensor element comprising a magnetoresistive portion, whe... | 11/01/2011 |
| 8026715 | Magneto-resistance based nano-scale position sensor A position sensor and method include a magnetic component, a first magneto-resistive sensor disposed in proximity to the magnet/coil; and a second magneto-resistive sensor disposed in proximity to the magnetic component and the first magneto-resistive sensor. The fi... | 09/27/2011 |
| 8022693 | Magnetic field sensitive sensor A sensor, preferably for magnetic rotary or linear sensor systems which include a scale arranged at a given distance from the sensor. The sensor has at least one magnetic field-sensitive GMR sensor element, which is arranged in a housing. The housing additionally in... | 09/20/2011 |
| 7990135 | Apparatus and method for detecting position of magnetic element An exemplary apparatus for detecting whether a magnetic element is mounted at a correct position on a retaining member is provided. The apparatus includes a holder, a magnetoresistive sensor, and a processor. The magnetoresistive sensor is held by the holder and cap... | 08/02/2011 |
| 7969145 | Position detecting device with a magnetoresistive element Disclosed is a position detecting device provided with a magnetoresistive element that can accurately detect a position using a magnet and a detector that moves opposite to the magnet. A front surface of a magnet having a circular shape is magnetized to the N-pole, ... | 06/28/2011 |
| 7965073 | Distance measuring device The invention relates to a distance measuring device, in particular to a magnetostrictive distance measuring device, which can be manufactured in a simple and cost efficient manner and still satisfy strict requirements with respect to tightness, with an elongated ho... | 06/21/2011 |
| 7965074 | Position sensor and bias magnetic field generating device Disclosed herein is a position sensor including, a magnetic recording medium including two incremental layers and an absolute layer, the absolute layer provided between the incremental layers, each of the layers having magnetic information recorded therein, and a ma... | 06/21/2011 |
| 7956604 | Integrated sensor and magnetic field concentrator devices Embodiments of the invention are related to integrated sensor and magnetic concentrator devices and methods. In one embodiment, an integrated circuit comprises a sensor device and a magnetic field concentrator. The sensor device comprises a first sensor element, a s... | 06/07/2011 |
| 7876091 | Magnetic encoder A magnetic encoder is provided, in which a large output voltage (a large amplitude) is obtained so that the magnetic encoder can have a strong resistance to external noise and so that malfunction can be prevented. Each of first to fourth magnetoresistance ele... | 01/25/2011 |
| 7839140 | Position detector and method employing plural sensor units for detecting a position of a packaging material with magnetic marking A position detector arrangement for detecting a position of a packaging material with magnetic marking comprises a sensor assembly comprising a plurality of magnetic sensor units each comprising an output providing an output signal. The magnetic sensor units are arr... | 11/23/2010 |
| 7839141 | Method of biasing a magneto resistive sensor element A method of biasing a magneto resistive sensor element includes providing at least one magneto resistive sensor element having a magnetic sensitivity along a first axis that is parallel to a plane of the at least one sensor element. A magnet is positioned adjacent t... | 11/23/2010 |
| 7825656 | Temperature compensation for spaced apart sensors A device includes a pair of individual sensors spaced apart from each other. A current source provides current to both of the individual sensors. A differential temperature sensor is coupled thermally proximate the individual sensors and provides a temperature diffe... | 11/02/2010 |
| 7812596 | Two-dimensional position sensing system A position sensing system includes a plurality of two-axis anisotropic magneto-resistive (AMR) sensors to determine the position of a user interface. A magnetic member is coupled to the user interface, which is movable to a position along a random path. The pluralit... | 10/12/2010 |
| 7800356 | Position detection apparatus using magnetoresistive effect element A circular surface of a magnet is magnetized to an N-pole, and a back surface is magnetized to an S-pole. A detection unit moves in an X-Y plane at a position apart from the surface of the magnet. An X-direction detection element and a Y-direction detection element ... | 09/21/2010 |
| 7786725 | Magnetic field detection apparatus for detecting an external magnetic field applied to a magnetoresistance effect element, and method of adjusting the same A magnetic field detection apparatus capable of changing the detection range and detection sensitivity as desired for a specific application is disclosed. A magnetoresistance effect element is applied a bias magnetic field and an external magnetic field. The bias ma... | 08/31/2010 |
| 7772835 | AMR array magnetic design for improved sensor flexibility and improved air gap performance An AMR array magnetic position sensing system for improved sensor flexibility and improved air gap performance is disclosed. A pair of magnets can be enclosed in a magnet carrier that moves along a path and located above an array of AMR position sensors. The magnets... | 08/10/2010 |
| 7705586 | Magnetic sensor for input devices In an example embodiment, a magnetic sensor has a magnet and a magneto-resistive, arranged on a substrate such that magnetic field lines through the magneto-resistive element are substantially parallel to a plane of the substrate. Movement of a movable magnetically ... | 04/27/2010 |
| 7671583 | Sensor element with laminated and spiral structure and without a power supply for a revolution counter A sensor element for a revolution counter includes a laminated structure suitable to cause a change in magnetisation in the sensor element without a power supply, simply by the displacement of a magnetic field past the sensor element. Moreover, the laminated structu... | 03/02/2010 |
| 7652471 | Magnetic tagging of magnetoresistive sensors A magnet's N and S polarity can be alternately assembled within a MR sensor housing to determine the type of sensor that is assembled. In an MR sensor package including a housing having a sensing face and adapted for containing a sensing transducer and magnet, it ca... | 01/26/2010 |
| 7652470 | Ball and sleeve joint for a motor vehicle A ball and sleeve joint for a motor vehicle has a housing (1) and a ball sleeve (5) which extends out of the housing (1) on both sides. The ball sleeve (5), has a through hole (8) and a bearing area (4) and is mounted with t... | 01/26/2010 |
| 7642773 | Magnetic sensor, production method thereof, rotation detection device, and position detection device A one-chip type magnetic sensor is provided in which thin-film anisotropic magnetoresistance elements are formed on an IC substrate. Applied magnetic fields can be detected in the magnetic sensor in vertical and horizontal directions, and detection sensitivity can b... | 01/05/2010 |
| 7635974 | Magnetic tunnel junction (MTJ) based magnetic field angle sensor A magnetic field angle sensor for measurement of a magnetic field angle over a 360° range has magnetic tunnel junction elements oriented at multiple angles. The magnetic field angle sensor includes multiple magnetic tunnel junction elements formed on a substrate th... | 12/22/2009 |
| 7626380 | Sensor module for detecting relative displacement and method of detecting moving direction using the same The present invention relates to a sensor module for detecting a relative displacement of an object having a groove pattern with alternately formed projection and depression, which comprises a magnet for generating a magnetic field; a giant magneto resistance (GMR) ... | 12/01/2009 |
| 7612555 | High-resolution magnetic encoder A high-resolution magnetic encoder system includes a magnetic resistive sensor, a fixed suspension, and a mechanism. The magnetic resistive sensor is mounted to the fixed suspension above a magnetic medium having at least one magnetic track. The fixed suspension is ... | 11/03/2009 |
| 7589522 | Method and apparatus for contactless detection of the rotational angle of a rotatable element The invention relates to a device and a method for determining the rotational angle of a rotatable element in a non-contact manner, the device including at least one magnetoresistive sensor element which emits at least one first signal for determining a rotational a... | 09/15/2009 |
| 7570048 | Magnetic sensor having spin valve type electro-magnetic transformation device A magnetic sensor for detecting an object includes: a detection portion including one half bridge, which has two spin valve type electro-magnetic transformation devices disposed on a substrate; and a magnet near the detection portion having a magnetic field changeab... | 08/04/2009 |
| 7548058 | Rotational angel detector with rotational-angle change-amount calculating unit calculating amount of change of absolute rotational angle A small-sized rotational angle detector can output both the absolute rotational angle α including the frequency of the steering shaft and the relative rotational angle signal. The amount of change of the absolute rotational angle is calculated on a sampling-period ... | 06/16/2009 |
| 7492150 | Circuit arrangement method for obtaining an output signal, and rotational speed measurement device comprising such a circuit arrangement A circuit arrangement for obtaining an output signal (Va) form a signal (Vs) containing at least one alternating component comprises a signal source (1) that supplies this signal (Vs), a first peak value detection device (2) for determining a maximum v... | 02/17/2009 |
| 7443161 | Method of determining angles In order to provide a method of determining an angle a of an external magnetic field relative to a magnetoresistive angle sensor with two full bridges which respectively supply an output signal U1=U0sin(2α), U2=U0cos(2α)... | 10/28/2008 |
| 7441322 | Method of manufacturing a magnetic detection apparatus A magnetic detection apparatus can be improved in its product yield. The magnetic detection apparatus includes a resin compact having a the magnet arranged in opposition to an object to be detected for generating a magnetic field, an IC chip with a magnetic detectio... | 10/28/2008 |
| 7439734 | Rotary encoder and method for its operation A rotary encoder includes a first group of components and a second group of components. The first group of components has a pulse wire, a detector, and a circuit configuration. The second group of components has a magnet and a code element. Upon approach of the magn... | 10/21/2008 |
| 7439835 | Rotary selector A rotary selector as display console for contact-free on and off switching as well as for switching of the automatic control of a number of different cycles of electronically operated domestic applicances, such as washing machines, dryers, dishwashers or comparable ... | 10/21/2008 |
