Patent application number | Description | Published |
20090046398 | 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 to the at least one sensor element for biasing the at least one sensor element, wherein the magnet has a magnetization that is non-perpendicular to the plane of the at least one sensor element, and wherein the magnetization includes a component parallel to the plane of the at least one sensor element that increases a sensitive range of the at least one sensor element along the first axis. | 02-19-2009 |
20090160461 | CAPACITIVE SENSOR AND MEASUREMENT SYSTEM - A system includes a capacitive sensor including a first electrode and a second electrode. The system includes a measurement system configured to sense a capacitance between the first electrode and the second electrode and apply a first offset to the sensed capacitance to provide an offset compensated capacitance. | 06-25-2009 |
20090190283 | PREDICTIVE PHASE LOCKED LOOP SYSTEM - A phase locked loop (PLL) circuit includes a first signal detector having a first input terminal configured to receive a varying first input signal, a second input terminal configured to receive a feedback signal that corresponds to the center of the input frequency, and an output terminal configured to provide an output signal corresponding to a phase difference between the first input and feedback signals. A delay estimator has an input terminal configured to receive the output signal from the first phase detector and in response thereto, output a phase difference estimation signal. A variable delay circuit has an input terminal configured to receive the phase difference estimation signal and in response thereto, phase shift the second input signal. | 07-30-2009 |
20090243633 | Capacitance Sensor - A capacitance sensor, having at least one electrode is disclosed. A frequency spread signal generation circuit is coupled to the at least one electrode to apply a frequency spread signal based on a spread sequence. A periodic signal with a frequency is coupled to the at least one electrode. A frequency controller is coupled to the frequency spread signal generation circuit to vary the frequency of the periodic signal. A receiver circuit is coupled to the at least one or a further electrode to receive a version of the frequency spread signal which depends on a capacitance applied to the at least one electrode. An evaluation circuit is coupled to the receiver circuit to determine a capacitance value based on the received, dependent version of the frequency spread signal. | 10-01-2009 |
20090273341 | SYSTEM INCLUDING SIGNAL OFFSET ESTIMATION - A system includes a first circuit configured to convert a first analog signal to a first digital signal. The system includes a second circuit configured to determine an area of the first digital signal above a set value and an area of the first digital signal below the set value to provide a second digital signal indicating an offset of the first analog signal. | 11-05-2009 |
20090295380 | CIRCUIT THAT PROVIDES OUTPUT VOLTAGES IN A HOMOGENOUS MAGNETIC FIELD - A circuit including Hall plates and an amplifier. The Hall plates are configured to provide Hall voltages in a homogenous magnetic field such that a first Hall plate has a first positive voltage and a first negative voltage and a second Hall plate has a second positive voltage and a second negative voltage. The amplifier is configured to receive the Hall voltages and provide a first output voltage that corresponds to the first positive voltage and the second positive voltage and a second output voltage that corresponds to the first negative voltage and the second negative voltage. | 12-03-2009 |
20100079269 | CAPACITIVE DETECTION SYSTEMS AND METHODS - The invention is related to capacitive sensing and detection systems and methods. In one embodiment, a capacitive sensor system comprises a first electrode arrangement having a first characteristic and related to a first capacitance, a second electrode arrangement having a second characteristic different from the first characteristic and related to a second capacitance, and a control unit coupled to the first and second electrode arrangements and configured to identify an object-dependent variable from at least one of the first and second characteristics and first and second capacitances. | 04-01-2010 |
20100079283 | CAPACITIVE DETECTION SYSTEMS AND METHODS - The invention is related to capacitive sensing and detection systems and methods. In one embodiment, a capacitive sensor system comprises a first electrode and a second electrode forming a first capacitive sensor mounted to a vehicle and configured to create a first electric field directed outward from the vehicle, and a control unit coupled to the first and second electrodes and configured to measure a change in the first electric field. In another embodiment, a method comprises capacitively sensing an object relative to a vehicle and communicating information related to the object. In yet another embodiment, a method comprises configuring a capacitive sensor to sense an object relative to a vehicle, and providing a path to communicate information from the capacitive sensor. | 04-01-2010 |
20100145580 | CAPACITIVE OBJECT RECOGNITION USING ADJUSTABLE ELECTRODE - A system for capacitive object recognition including a pair of electrodes, one of the electrodes having an adjustable parameter, and a controller modeling current pathways formed by interaction of an object with an electric field between the pair electrodes as a network of capacitors. The controller is configured to set the adjustable parameter to a first setting and to apply a set of alternating current voltages to the pair electrodes and measure a resulting first set of current values at each of the electrodes, configured to set the adjustable parameter to a second setting and apply the set of alternating current voltages to the pair of electrodes and measure a resulting second set of current values at each of the electrodes, and configured to determine values for up to all capacitors of the network of capacitors based on the first and second sets of current values. | 06-10-2010 |
20110068779 | Bias field generation for a magneto sensor - Embodiments related to the generation of magnetic bias fields for a magneto sensor are described and depicted. | 03-24-2011 |
20110101964 | Magnetic Encoder Element for Position Measurement - A magnetic encoder element for use in a position measurement system including a magnetic field sensor for measuring position along a first direction is disclosed. The encoder element includes at least one first track that includes a material providing a magnetic pattern along the first direction, the magnetic pattern being formed by a remanent magnetization vector that has a variable magnitude dependent on a position along the first direction. The gradient of the remanent magnetization vector is such that a resulting magnetic field in a corridor above the first track and at a predefined distance above the plane includes a field component perpendicular to the first direction that does not change its sign along the first direction. | 05-05-2011 |
20110187359 | Bias field generation for a magneto sensor - Embodiments related to the generation of magnetic bias fields for a magneto sensor are described and depicted. | 08-04-2011 |
20140218014 | BIAS FIELD GENERATION FOR A MAGNETO SENSOR - Embodiments related to the generation of magnetic bias fields for magnetic sensing are described and depicted. In one embodiment, a sensor includes at least one magnetosensitive element, and a magnetic body with an opening, the magnetic body comprising magnetic material, the magnetic body having inclined surface sections shaped by the opening, wherein the sensor is arranged within the opening such that the magneto-sensitive element is in lateral directions bounded by the inclined surface sections. | 08-07-2014 |
20140288883 | METHOD FOR DETERMINING AN ANGLE OF A MAGNETIC POLE OF A ROTATING OBJECT - In various embodiments, a method may include: generating at least one time stamp based on detection of at least a first magnetic field event of at least one pole of a magnetic object during a first rotation; determining a model of the magnetic object based on the at least one time stamp, wherein the model describes a magnetic pattern caused by the first rotation of the magnetic object; generating at least one further time stamp based on detection of at least a second magnetic field event of the at the least one pole of the magnetic object during a second rotation; and updating the model based on the at least one further time stamp. | 09-25-2014 |