Patent application number | Description | Published |
20090093981 | INTEGRATED TILT COMPENSATED COMPASS IN A SINGLE PACKAGE - A magnetic compass includes a magnetic sensor, an acceleration sensor, respective signal conditioning circuits in electronic communication with the sensors and a microprocessor. These components are arranged and structurally coupled to a single electronic package that supports the sensors, the signal conditioning circuits, and the microprocessor to provide a miniaturized magnetic compass. In addition, a temperature sensor may be coupled to the package to provide temperature compensation for at least some of the above-identified components. | 04-09-2009 |
20120279077 | SYSTEMS AND METHODS FOR THREE-AXIS SENSOR CHIP PACKAGES - Systems and methods for three-axis sensor chip packages are provided. In one embodiment, a directional sensor package comprises: a base; a first sensor die mounted to the base, the first sensor die having a first active sensor circuit and a first plurality of metal pads electrically coupled to the first active sensor circuit; a second sensor die mounted to the base, the second sensor die having a second active sensor circuit located on a first surface, and a second plurality of metal pads electrically coupled to the second active sensor circuit located on a second surface. The second sensor die is positioned such that the second active sensor circuit is oriented orthogonally with respect to the first active sensor circuit region and is perpendicular to the base. The second surface is adjacent to the first surface and angled with respect to a plane of the first surface. | 11-08-2012 |
20120299587 | THREE-AXIS MAGNETIC SENSORS - Systems and methods for three-axis magnetic sensors are provided. In one embodiment, a three-axis magnetic sensor formed on a single substrate comprises: an in-plane two-axis magnetic sensor comprising at least one of either a magnetic-resistance (MR) sensor or a magnetic-inductive (MI) sensor formed on the single substrate; and an out-of-plane magnetic sensor comprising a Hall effect sensor formed on the single substrate. The in-plane two-axis magnetic sensor measures magnetic fields in a first plane parallel to a plane of the substrate, and the out-of-plane magnetic sensor measures magnetic fields along an axis orthogonal to the first plane. | 11-29-2012 |
20120313193 | SYSTEMS AND METHODS FOR THREE DIMENSIONAL SENSORS - Systems and methods for fabricating a multi-axis sensor are provided. In one implementation, a method comprises: fabricating a first die having a first active surface with first application electronics; fabricating a second die having a second active surface with second application electronics and a plurality of electrical connections that extend from the second application electronics to a side surface interface of the second die that is adjacent to the second active surface; aligning the side surface interface to be coplanar with the first active surface; and forming at least one electrical connection between the plurality of electrical connections and the first active surface. | 12-13-2012 |
20130116943 | APPARATUS AND METHOD FOR DETERMINING IN-PLANE MAGNETIC FIELD COMPONENTS OF A MAGNETIC FIELD USING A SINGLE MAGNETORESISTIVE SENSOR - A method to measure an applied magnetic field in a plane is provided. The method includes simultaneously applying a first and second alternating drive current to a respective first and second strap overlaying a magnetoresistive sensor so the magnetoresistive sensor is subjected to a periodically rotating magnetic drive field rotating in the plane in the magnetoresistive sensor. When the applied magnetic field to be measured is superimposed on the periodically rotating magnetic drive field rotating in the plane, the method includes extracting a second harmonic component of an output voltage output from the magnetoresistive sensor. The magnitude of the magnetic field to be measured in the plane is proportional to an amplitude of the extracted second harmonic component of the output voltage. The orientation of the magnetic field to be measured in the plane is related to a phase angle of the extracted second harmonic component of the output voltage. | 05-09-2013 |
20130334311 | ANISOTROPIC MAGNETO-RESISTANCE (AMR) GRADIOMETER/MAGNETOMETER TO READ A MAGNETIC TRACK - A solid state magnetic sensor for sensing magnetic information on a magnetic track is provided. The solid state magnetic sensor includes at least one half of a Wheatstone bridge including at least two legs, each of the at least two legs including at least a portion of a strip of magnetic material, and barber pole nonmagnetic shorting bars arranged on the portions of the strip forming the at least two legs of the at least one half of the Wheatstone bridge. An inner gap between parallel and adjacent strips of a respective at least two legs is on the order of a transition length on the magnetic track to be sensed. | 12-19-2013 |