607 patents
Page 10 of 31
Utility
Detector System Comparing Pixel Response with Photonic Energy Decay
15 Sep 22
Methods and apparatus for a controlling a stimulus source to direct photons to a pixel in a pixel array contained in a detector system, analyzing a response of the pixel in the pixel array; and generating an alert based on the response of the pixel in the pixel array.
William P. Taylor, Bryan Cadugan
Filed: 10 Mar 21
Utility
Magnetic field sensor integrated circuit with an integrated coil enclosed with a semiconductor die by a mold material
13 Sep 22
A magnetic field sensor includes a lead frame, a semiconductor die, a conductive coil, a mandrel, and a non-conductive mold material.
Ravi Vig, William P. Taylor, Paul A. David, P. Karl Scheller, Andreas P. Friedrich
Filed: 22 Dec 20
Utility
Integrated Shunt and Magnetic Field Current Sensor
8 Sep 22
According to some embodiments, a device includes: a magnetic field current sensor magnetically coupled to a conductor and configured to generate a magnetic field signal having a magnitude responsive to a current flowing through the conductor; a shunt interface having first and second input terminals electrically coupled to ends of a shunt disposed along the conductor, the shunt interface configured to generate a shunt signal having a magnitude responsive to the current flowing through the conductor; and a diagnostic circuit configured to receive the magnetic field signal and the shunt signal and to generate a fault signal based on a comparison between the magnitude of the magnetic field signal and the magnitude of the shunt signal.
Andreas P. Friedrich, Loïc André Messier, Alexander Latham
Filed: 2 Mar 21
Utility
Phase compensation for an inductive position sensor
6 Sep 22
An interface circuit for a position sensor system including an oscillator generating an oscillation signal having a carrier frequency and a primary phase, a primary coil responsive to the oscillation signal, and a secondary coil electromagnetically coupled to the primary coil by a target and configured to generate a secondary signal having the carrier frequency and a secondary phase provides phase compensation.
Mathew Drouin
Filed: 28 Oct 20
Utility
Stray Field Immune Coil-activated Sensor
1 Sep 22
A magnetic field sensor includes: a substrate; a transmission coil formed on the substrate, the transmission coil being configured to generate a direct magnetic field; a sensing bridge that is formed on the substrate, the sensing bridge being configured to detect the direct magnetic field and a reflected magnetic field that is generated by a target, the reflected magnetic field being generated in response to eddy currents that are induced in the target by the direct magnetic field; a processing circuitry being configured to generate an output signal that is indicative of a position of the target, the output signal being generated by normalizing a first signal with respect to a second signal, the first signal being generated at least in part by using the sensing bridge, and the second signal being generated at least in part by using the sensing bridge, wherein the second signal is based on the detected direct magnetic field.
Hernán D. Romero
Filed: 26 Feb 21
Utility
Sensor integrated circuit load current monitoring circuitry and associated methods
30 Aug 22
A sensor integrated circuit including a regulator for generating a regulated voltage includes a digital load configured to draw a load current from the regulator in response to a clock signal during in situ operation and a comparator configured to determine the absence or presence of a fault during in situ operation.
Glenn A. Forrest, Thomas J. Kovalcik, Wei Zhang
Filed: 10 Feb 21
Utility
Coil actuated sensor with sensitivity detection
30 Aug 22
A magnetic field sensor includes at least one coil responsive to an AC coil drive signal; at least one magnetic field sensing element responsive to a sensing element drive signal and configured to detect a directly coupled magnetic field generated by the at least one coil and to generate a magnetic field signal in response to the directly coupled magnetic field; a processor responsive to the magnetic field signal to compute a sensitivity value associated with detection of the directly coupled magnetic field and substantially independent of a reflected magnetic field reflected by a conductive target disposed proximate to the at least one magnetic field sensing element; and an output signal generator configured to generate an output signal of the magnetic field sensor indicative of the reflected magnetic field.
Alexander Latham, Claude Fermon, Jason Boudreau, Myriam Pannetier-Lecoeur, Bryan Cadugan, Hernán D. Romero
Filed: 26 May 17
Utility
Magnetic field sensor with stacked transducers and capacitive summing amplifier
9 Aug 22
A magnetic field sensor includes a current source configured to generate a bias current, a plurality of magnetic field transducers, each having power terminals coupled to the current source and output terminals at which an output signal of the transducer is provided, wherein the power terminals of each of the plurality of magnetic field transducers are electrically coupled together in series so that the bias current flows through each of the plurality of magnetic field transducers in series.
Craig S. Petrie, Hernán D. Romero, David J. Haas
Filed: 18 Nov 20
Utility
Linear bridge having nonlinear elements for operation in high magnetic field intensities
9 Aug 22
In one aspect, a bridge includes a first magnetoresistance element having a first reference angle; a second magnetoresistance element in series with the first magnetoresistance element and having a second reference angle; a third magnetoresistance element in parallel with the first magnetoresistance element and having the first reference angle; and a fourth magnetoresistance element in series with the third magnetoresistance element and having the second reference angle.
Rémy Lassalle-Balier
Filed: 6 Jul 20
Utility
Current Sensor for Compensation of On-die Temperature Gradient
4 Aug 22
A sensor including: a substrate having a first region and a second region; a first series of first magnetoresistive (MR) elements formed on the substrate, the first series of first MR elements including at least two first MR elements; and a second series of second MR elements that is coupled in parallel with the first series of first MR elements to form a bridge circuit, the second series of second MR elements being formed on the substrate, the second series of second MR elements including at least two second MR elements, each of the at least two second MR elements having a different pinning direction than each of the at least two first MR elements, wherein one of the at least two first MR elements and one of the at least two second MR elements are formed in the first region of the substrate and have different pinning directions.
Noémie Belin
Filed: 22 Apr 22
Utility
Linear Sensor with Dual Spin Valve Element Having Reference Layers with Magnetization Directions Different from an External Magnetic Field Direction
4 Aug 22
In one aspect, a linear sensor includes at least one magnetoresistance element that includes a first spin valve and a second spin valve positioned on the first spin valve.
Rémy Lassalle-Balier, Maxime Rioult
Filed: 3 Feb 21
Utility
Motor Controller with Stall Detection
4 Aug 22
A motor control system for controlling operation of a motor having a plurality of windings includes a gate driver to provide a control signal to one or more switching elements controlling a voltage applied to the plurality of windings and a Field Oriented Control (FOC) controller configured to generate a PWM signal for coupling to the gate driver, wherein the FOC controller comprises a d-axis control loop configured to generate an applied d-axis voltage and a q-axis control loop configured to generate an applied q-axis voltage.
Kamyar Khosravi, Masahira Kurihara, Andrew Adib
Filed: 29 Jan 21
Utility
Magnetic sensor with improved stress compensation accounting for temperature
2 Aug 22
A magnetic field sensor is provided with improved stress compensation accounting for temperature.
Juan Manuel Cesaretti, Evan Shorman
Filed: 12 Aug 19
Utility
Differential current sensor package
2 Aug 22
Methods and apparatus for measuring a current difference between at least two primary current paths in a current sensor integrated circuit package.
Maxwell McNally, Kevin Buckley, Alexander Latham
Filed: 22 Mar 21
Utility
Methods and apparatus for trimming a magnetic field sensor
2 Aug 22
Method and apparatus for trimming a magnetic field sensor having a first magnetic field sensing element.
Virag V. Chaware, Jesse Lapomardo, David J. Haas
Filed: 17 Jul 15
Utility
Magnetic-field Closed-loop Sensors with Diagnostics
28 Jul 22
Magnetic-field sensors use magnetic closed-loops with magnetic-field sensing elements, e.g., magnetoresistance (MR) elements, and diagnostic circuitry operating in a separate frequency band than that used for magnetic field sensing.
Hernán D. Romero
Filed: 18 Apr 22
Utility
Signal Isolator Having at Least One Isolation Island
28 Jul 22
Methods and apparatus for a signal isolator having reduced parasitics.
Robert A. Briano, Alejandro Gabriel Milesi
Filed: 19 Apr 22
Utility
Sensor Signaling of Absolute and Incremental Data
28 Jul 22
A sensor integrated circuit (IC) includes a sensing element configured to sense a parameter associated with a target, a processor coupled to the sensing element and configured to generate a sensed signal indicative of the parameter associated with the target, and an output module coupled to receive the sensed signal.
Emanuele Andrea Casu, Cédric Gillet, Nicolás Rigoni, Florencia Ferrer, Andreas P. Friedrich, Emil Pavlov
Filed: 12 Apr 22
Utility
Circuit For Reducing An Offset Component Of A Plurality Of Vertical Hall Elements Arranged In One Or More Circles
14 Jul 22
A magnetic field sensor can be are based upon three element vertical Hall element building blocks, e.g., three element or six element vertical Hall element arrangements, all arranged in a circle.
Bruno Luis Uberti, Gerardo A. Monreal, Hernán D. Romero
Filed: 13 Jan 21
Utility
Semiconductor Device
14 Jul 22
A semiconductor device is disclosed that includes a group of trenches positioned in active region inside a first semiconductor region.
Taro KONDO
Filed: 12 Jan 21