508 patents
Utility
Electrical offset compensating in a magnetoresistance bridge
21 Mar 23
In one aspect, bridge circuitry includes a first magnetoresistance (MR) element; a second MR element connected in series with the first MR element at a first node; a third MR element; a fourth MR element connected in series with the third MR element at a second node; a first switch connected at one end to a supply voltage and connected at the other end to the third MR element; a second switch connected at one end to ground and connected at the other end to the fourth MR element; a third switch connected at one end to ground and connected at the other end to the third MR element and the first switch; and a fourth switch connected at one end to the supply voltage and the other end to the fourth MR element and the second switch.
Hernán D. Romero
Filed: 23 Mar 21
Utility
Dual Circuit Digital Isolator
16 Mar 23
An apparatus including; a substrate; an isolator that is formed over the substrate, the isolator including a silicon shield layer that is formed between a first buried oxide (BOX) layer and a second BOX layer; a silicon layer having an oxide trench structure formed therein, the oxide trench structure being arranged to define a first silicon island and a second silicon island; a first electronic circuit that is formed over the first silicon island; and a second electronic circuit that is formed over the second silicon island, the first electronic circuit being electrically coupled to the first electronic circuit.
Sundar Chetlur, Maxim Klebanov, Cory Voisine, Kenneth Snowdon, Hsuan-Jung Wu
Filed: 31 Oct 22
Utility
Reducing stray magnetic field effect on an angle sensor
14 Mar 23
In one aspect, an angle sensor includes a first linear sensor and a second linear sensor.
Rémy Lassalle-Balier, Jean-Michel Daga
Filed: 25 Feb 20
Utility
Current Sensor System
9 Mar 23
A current sensor system, includes: a plurality of conductors that are integrated into a substrate, each of the plurality of conductors having a respective first through-hole formed therein and a plurality of current sensors, each of the plurality of current sensors being disposed on the substrate.
Yannick Vuillermet, Loïc André Messier
Filed: 7 Sep 21
Utility
Linear Inductive Torque Sensor
9 Mar 23
Methods and apparatus for linear inductive torque sensing that may include transmitting an AC magnetic field with a transmit coil toward a conductive target and receiving a field reflected by the conductive target with a receive coil, wherein the conductive target comprises first and second targets positioned with respect to each other and each shaped to linearly increase or decrease an amount of conductive area of the conductive target due to relative movement of the first and second targets which changes an amount of the field reflected by the conductive target.
Alexander Latham, Hernán D. Romero
Filed: 3 Sep 21
Utility
Magnetic-field sensor with test pin for control of signal range and/or offset
7 Mar 23
In one aspect, an integrated circuit (IC) includes a magnetic-field sensor.
Kevin Maffei
Filed: 13 Jul 21
Utility
TMR assembly having a heat sink
7 Mar 23
Methods and apparatus for a sensor including a series of tunneling magnetoresistance (TMR) pillars and a heatsink adjacent to at least one of the TMR pillars, where the heatsink comprises Titanium Nitride (TiN).
Sundar Chetlur, Maxim Klebanov, Yen Ting Liu, Paolo Campiglio
Filed: 4 Mar 22
Utility
Detector array yield recovery
7 Mar 23
A method includes forming a plurality of identical arrays on a semiconductor wafer, each array having a plurality of detectors, screening each of the plurality of arrays to determine an operational status of each of the plurality of arrays, and selecting one of the plurality of arrays for use based on the determination of the operational status of the plurality of arrays.
Logan G. Stewart, Andrew S. Huntington, William P. Taylor
Filed: 15 Jul 21
Utility
Temperature sensing of a photodetector array
7 Mar 23
Methods and apparatus for temperature sensing in a detector system.
Bryan Cadugan
Filed: 14 Apr 21
Utility
Packaged Current Sensor Integrated Circuit
2 Mar 23
A packaged current sensor integrated circuit includes a primary conductor having an input portion and an output portion configured to carry a current to be measured by one or more magnetic sensing elements supported by a semiconductor die adjacent to the primary conductor.
Shixi Louis Liu, Robert A. Briano, Natasha Healey
Filed: 8 Nov 22
Utility
Angle Sensor Using Eddy Currents
2 Mar 23
A magnetic field angle sensor includes a coil configured to generate a magnetic field that induces an eddy current in a rotatable target, a first magnetic field sensing structure positioned proximate to the coil and configured to detect a reflected magnetic field generated by the eddy current induced in the target, a second magnetic field sensing structure positioned proximate to the coil and configured to detect the reflected magnetic field generated by the eddy current induced in the target, wherein the first and second magnetic field sensing structures are configured to detect quadrature components of the reflected magnetic field, and a processing module configured to process the reflected magnetic field detected by the first and second magnetic field sensing structures for determining an angular position of the target.
Hernán D. Romero, Octavio H. Alpago
Filed: 24 Aug 21
Utility
Stray Field Immune Angle Sensor
2 Mar 23
A sensor, comprising: a substrate having a reference crystal orientation and a plurality of vertical Hall element pairs that are formed on the substrate.
Hernán D. Romero
Filed: 2 Sep 22
Utility
Magnetic Field Sensor Integrated Circuit with Integral Ferromagnetic Material
23 Feb 23
A magnetic field sensor includes a lead frame, a passive component, semiconductor die supporting a magnetic field sensing element and attached to the lead frame, a non-conductive mold material enclosing the die and at least a portion of the lead frame, and a ferromagnetic mold material secured to a portion of the non-conductive mold material.
Ravi Vig, William P. Taylor, Andreas P. Friedrich, Paul A. David, Marie-Adelaide Lo, Eric Burdette, Eric G. Shoemaker, Michael C. Doogue
Filed: 13 Oct 22
Utility
Packaged Current Sensor Integrated Circuit
23 Feb 23
A packaged current sensor integrated circuit includes a primary conductor having an input portion and an output portion configured to carry a current to be measured by a magnetic sensing element supported by a semiconductor die adjacent to the primary conductor.
Bradley Boden, Rishikesh Nikam, Robert A. Briano
Filed: 10 Mar 22
Utility
Systems and methods for magnetic field sensors with self-test
21 Feb 23
Systems, methods, and apparatuses for magnetic field sensors with self-test include a detection circuit to detect speed and direction of a target.
P. Karl Scheller, James E. Burgess, Steven E. Snyder, Kristann L. Moody, Devon Fernandez, Andrea Foletto
Filed: 17 Aug 20
Utility
Non-uniformity correction of photodetector arrays
21 Feb 23
Methods and apparatus for nonuniformity correction (NUC) for a sensor having an avalanche photodiode (APD) array and an integrated circuit.
Adam Lee, Andrew S. Huntington, Charles Myers, Shunming Sun
Filed: 13 Aug 21
Utility
Non-uniformity Correction of Photodetector Arrays
16 Feb 23
Methods and apparatus for nonuniformity correction (NUC) for a sensor having an avalanche photodiode (APD) array and an integrated circuit.
Adam Lee, Andrew S. Huntington, Charles Myers, Shunming Sun
Filed: 13 Aug 21
Utility
Programmable Active Pixel Test Injection
16 Feb 23
Methods and apparatus for a detector system having a photodetector and an amplifier to amplify the photodetector signal.
Charles Myers, Shunming Sun, Adam Lee
Filed: 12 Aug 21
Utility
Angle sensor using eddy currents
14 Feb 23
A magnetic field angle sensor includes a coil configured to generate a magnetic field that induces an eddy current in a rotatable target, a first magnetic field sensing structure positioned proximate to the coil and configured to detect a reflected magnetic field generated by the eddy current induced in the target, a second magnetic field sensing structure positioned proximate to the coil and configured to detect the reflected magnetic field generated by the eddy current induced in the target, wherein the first and second magnetic field sensing structures are configured to detect quadrature components of the reflected magnetic field, and a processing module configured to process the reflected magnetic field detected by the first and second magnetic field sensing structures for determining an angular position of the target.
Hernán D. Romero, Octavio H. Alpago
Filed: 24 Aug 21
Utility
Detector system comparing pixel response with photonic energy decay
14 Feb 23
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