607 patents
Page 5 of 31
Utility
Frequency detection on sensor integrated circuits
27 Jun 23
According to an embodiment of the present disclosure, an integrated circuit includes: at least one sensing element configured to generate a sensed signal responsive to an electrical or magnetic phenomenon; an analog-to-digital converter configured to convert the sensed signal into a digital signal; and a digital processor configured to detect a target frequency of the electrical or magnetic phenomenon by iteratively applying a first real-valued coefficient to samples of the digital signal using real-valued arithmetic.
Jan Palascak
Filed: 31 Jul 20
Utility
Linear inductive torque sensor
30 May 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
Current sensor system
23 May 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
Single-shunt current measurement
23 May 23
A method comprising: receiving a first current measurement that is taken at a first predetermined time instant; receiving a second current measurement that is taken at a second predetermined time instant; classifying the first current measurement as corresponding to one of a plurality of electrical signals, the first current measurement being classified based, at least in part, on a duty cycle pattern of the plurality of electrical signals; classifying the second current measurement as corresponding to another one of the plurality of electrical signals, the second current measurement being classified based, at least in part, on the duty cycle pattern of the plurality of electrical signals; and adjusting a duty cycle of at least one of the electrical signals based on the first current measurement, the classification of the first current measurement, the second current measurement, and the classification of the second current measurement.
Anton Babushkin, Serhii Korol, Yaroslav Smirnov, Dmytro Sakharov, Masahira Kurihara, Kamyar Khosravi, Vadym Khudobets
Filed: 20 Dec 21
Utility
Adaptive Switching Frequency Selection
18 May 23
A method is provided for use in a sensor, the method comprising: selecting a switching cycle for the sensor; transitioning the sensor into a state in which at least one component of the sensor is periodically turned on and off in accordance with the switching cycle; sampling an analog signal to generate a sampled signal, the analog signal being generated by at least one sensing element, the analog signal being sampled only during periods in which the at least one component of the sensor is turned on; and generating an output signal based, at least in part, on the sampled signal and outputting the output signal.
David J. Haas, Hernán D. Romero
Filed: 12 Nov 21
Utility
Detector System Having Type of Laser Discrimination
18 May 23
Methods and apparatus for receiving a return laser pulse at a detector system having pixels in a pixel array and analyzing a response of the pixels in the pixel array including comparing the response to at least one threshold corresponding to decay of photonic energy of the laser pulse over distance and target reflectivity, wherein the at least one threshold comprises a first threshold corresponding to a low trigger for a pulse generated by a first type of laser and a second threshold corresponding to a high trigger for the pulse generated by the first type of laser.
William P. Taylor, Bryan Cadugan
Filed: 11 Jan 23
Utility
Current sensor integrated circuits
9 May 23
A current sensor integrated circuit configured to sense a current through a current conductor includes a lead frame at least one signal lead, a fan out wafer level package (FOWLP), and a mold material enclosing the FOWLP and a portion of the lead frame.
Shixi Louis Liu, Paul A. David, Natasha Healey
Filed: 7 Oct 21
Utility
Angle Sensor with a Single Die Using a Single Target
4 May 23
In one aspect, an angle sensor includes magnetic-field sensing elements that include a first pair, a second pair, a third pair and a fourth pair of magnetic-field sensing elements; and processing circuitry configured to determine an angle of a rotating ring magnetic having a plurality of North-South pole pairs each having a unique period length.
Rémy Lassalle-Balier
Filed: 4 Nov 21
Utility
Commonly Controlled Buck-boost Converter
27 Apr 23
A method for controlling a buck-boost converter includes generating a first threshold voltage with a decreasing voltage level, generating a second threshold voltage with an increasing voltage level, and sensing an inductor current.
Michele Suraci, Giorgio Oddone
Filed: 26 Oct 21
Utility
Magnitude Calculation in a Magnetic Field Angle Tracking System
20 Apr 23
A magnetic field sensor configured to sense an angle of a magnetic field associated with a rotatable target includes a first magnetic field sensing structure configured to generate a first signal indicative of the magnetic field and a second magnetic field sensing structure configured to generate a second signal indicative of the magnetic field, wherein the first and second magnetic field sensing structures are configured to detect quadrature components of the magnetic field.
Cristian Trinidad, Nicolás Rigoni
Filed: 20 Oct 21
Utility
Dynamic Offset and Amplitude Tracker
20 Apr 23
A method for use in a sensor, comprising: generating a signal that is indicative of an angular position of a rotating target, the signal being generated by at least one magnetic field sensing element; adjusting the signal to produce an adjusted signal, the signal being adjusted based on a current value of a first adjustment coefficient; generating an output signal based on the adjusted signal; and updating the first adjustment coefficient, the updating including replacing the current value of the first adjustment coefficient with a new value of the first adjustment coefficient, the updating being performed by minimizing a function that is based on the current value of the first adjustment coefficient.
Christophe Lutz
Filed: 14 Oct 21
Utility
Channel sensitivity matching
18 Apr 23
A sensor includes: a reference magnetic field generator configured to generate a reference magnetic field that is modulated at a first frequency, a first magnetic field sensing element that is configured to generate a first internal signal that is modulated at a second frequency, and a second magnetic field sensing element that is configured to generate a second internal signal that is modulated at the second frequency.
Ezequiel Rubinsztain, Leandro Fuentes, Juan Guido Salaya Velazquez
Filed: 31 Mar 21
Utility
Linear sensor with dual spin valve element having reference layers with magnetization directions different from an external magnetic field direction
18 Apr 23
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
Fabricating a coil above and below a magnetoresistance element
18 Apr 23
In one aspect, a method includes forming a metal layer on a substrate, wherein the metal layer comprises a first coil, forming a planarized insulator layer on the metal layer, forming at least one via in the planarized insulator layer, depositing a magnetoresistance (MR) element on the planarized insulator layer, and forming a second coil extending above the MR element.
Yen Ting Liu, Maxim Klebanov, Paolo Campiglio, Sundar Chetlur, Harianto Wong
Filed: 17 Jan 22
Utility
Current Sensor Integrated Circuits
13 Apr 23
A current sensor integrated circuit configured to sense a current through a current conductor includes a lead frame at least one signal lead, a fan out wafer level package (FOWLP), and a mold material enclosing the FOWLP and a portion of the lead frame.
Shixi Louis Liu, Paul A. David, Natasha Healey
Filed: 7 Oct 21
Utility
Reducing stray magnetic-field effects using a magnetic-field closed-loop system
11 Apr 23
In one aspect, a magnetic-field sensor includes main coil circuitry configured to generate a first magnetic field signal at a first frequency.
Hernán D. Romero
Filed: 3 Oct 22
Utility
Method and apparatus for detecting errors in a magnetic field sensor
11 Apr 23
A method for use in a sensor includes generating a first signal by a first sensing module in response to a magnetic field associated with a rotating target, generating a base word based on the first signal, the base word including a first base bit that is generated by comparing respective components of the first signal, reversing a respective polarity of the first signal and offsetting the first signal, generating a test word based on the first signal, the test word being generated after the respective polarity of the first signal is reversed and the first signal is offset, the test word including a first test bit that is generated by comparing the respective components of the first signal, and setting a value of an error signal based on whether the test word matches the base word.
Juan Manuel Cesaretti, Leandro Tozzi, Paola Anabella Ceminari
Filed: 20 Jul 21
Utility
Arrayed time to digital converter
4 Apr 23
Methods and apparatus for an arrayed time to digital converter (TDC) having matched delay line sampling.
Charles Myers, Shunming Sun, Adam Lee
Filed: 2 Jun 22
Utility
Current sense calibration in a motor control system
4 Apr 23
A motor control system includes a gate driver motor controller and a microcontroller configured to generate a commutation command signal for coupling to the gate driver motor controller.
Andrea Foletto, Daniel Jacques
Filed: 17 Jan 22
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