278 patents
Page 4 of 14
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
Method and Apparatus for Detecting Angular Position of a Target Having Variable Target Features
9 Feb 23
A method includes receiving a signal that is generated at least in part by one or more magnetic field sensing elements in response to a magnetic field associated with a rotating target, the rotating target a changing feature that changes with target rotation angle, the one or more magnetic field sensing elements being part of a sensor; detecting a current value of the signal; and identifying a current angular position of the rotating target relative to the sensor based on: (i) the current value of the signal and (ii) a map that maps each of a plurality of values of the signal to a different respective angular position of the rotating target.
Syed Bilal Ali, Andreas P. Friedrich, Fabian Winkler
Filed: 4 Aug 21
Utility
Reducing Stray Magnetic-field Effects Using a Magnetic-field Closed-loop System
26 Jan 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
26 Jan 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
Detector Array Yield Recovery
19 Jan 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
Magnetic-field Sensor with Test Pin for Control of Signal Range And/or Offset
19 Jan 23
In one aspect, an integrated circuit (IC) includes a magnetic-field sensor.
Kevin Maffei
Filed: 13 Jul 21
Utility
Low Dropout (Ldo) Voltage Regulator
12 Jan 23
A low dropout (LDO) voltage regulator includes a first LDO stage that receives a first supply voltage and is active during a first time interval and a second LDO stage that receives a second supply voltage and is active during a second time interval.
Gorjan Georgievski, Giorgio Oddone, Michele Suraci
Filed: 9 Jul 21
Utility
Use Of Channel Information To Generate Redundant Angle Measurements On Safety Critical Applications
5 Jan 23
A sensor system and method use channel information to generate redundant angle measurements for sensing rotation of magnets about a given axis of rotation.
Juan Manuel Cesaretti, Andrea Foletto
Filed: 30 Jun 21
Utility
Semiconductor Device
29 Dec 22
A first semiconductor region, a second semiconductor region, and a third semiconductor region are arranged in layers.
Bungo TANAKA
Filed: 29 Jun 21
Utility
Supply Voltage Configurable Sensor
22 Dec 22
A sensor includes a sensing element configured to generate a sensing element output signal indicative of a sensed parameter and a signal path responsive to the sensing element output signal and having at least one of an adjustable gain or an adjustable offset, wherein the signal path is configured to generate a sensor output signal indicative of the sensed parameter.
Alexander Latham, Evan Shorman, Michael C. Doogue
Filed: 17 Jun 21
Utility
Photoreceiver Array Having Microlenses
22 Dec 22
Methods and apparatus for a first photodetector array die having pixels from a first end to a second end and a second photodetector array die having pixels from a first end to a second end.
Bryan Cadugan, Harry Chandra, William P. Taylor
Filed: 21 Jun 21
Utility
Angle Sensor
15 Dec 22
Methods and apparatus for prosing a sensor IC package having first and second sets of magnetic field sensing elements and a third set of magnetic field sensing elements located between the first and second positions, wherein the first, second, and third sets of magnetic field sensing elements have a first axis of sensitivity and a second axis of sensitivity, wherein the first and second axes of sensitivity are orthogonal.
Yannick Vuillermet, Andreas P. Friedrich
Filed: 10 Jun 21
Utility
Arrayed Time to Digital Converter
8 Dec 22
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
Auto-calibration for Multi-pole Angle Sensors with Mechanical Modulation
8 Dec 22
A sensor, comprising: a processing circuitry configured to: receive a first signal that is generated by a first magnetic field sensing element, the first signal being generated in response to a magnetic field that is indicative of rotation of a target; identify N local maxima of the first signal, where N is a positive integer, and N>1; identify N local minima of the first signal; generate a first offset adjustment signal and a first gain adjustment signal based on: (i) a first sum of the local maxima of the first signal and (ii) a second sum of the local minima of the first signal; and adjust the first signal based on the first offset adjustment signal and the first gain adjustment signal.
Sergio Nicolás Deligiannis, Nicolás Rigoni
Filed: 27 May 21
Utility
Synchronous Converter for Use with Reverse Current Protection Diode
1 Dec 22
A converter to convert an input voltage into a regulated output current for supplying a load includes a reverse current protection diode having an anode coupled to the input voltage and a cathode, an energy storage element coupled to the cathode of the reverse current protection diode, a high side transistor coupled to the energy storage element and responsive to a high side control signal, and a low side transistor coupled to the energy storage element and responsive to a low side control signal.
Vishal Ghorband, George P. Humphrey
Filed: 28 May 21
Utility
Coil Actuated Sensor with Sensitivity Detection
27 Oct 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: 1 Jul 22
Utility
Electronic Circuit Having Vertical Hall Elements Arranged on a Substrate to Reduce an Orthogonality Error
27 Oct 22
An electronic circuit can have a first plurality of vertical Hall elements and a second plurality of vertical Hall elements all disposed on a substrate having a plurality of crystal unit cells, wherein the first plurality of vertical Hall elements have longitudinal axes disposed within five degrees of parallel to an edge of the crystal unit cells, and wherein the second plurality of vertical Hall elements have longitudinal axes disposed between eighty-five and ninety-five degrees relative to the longitudinal axes of the first plurality of vertical Hall elements.
Hernán D. Romero, Gerardo A. Monreal
Filed: 23 Apr 21
Utility
Ultra-low Noise Capacitively-coupled Auto-zeroed and Chopped Amplifier with Sensor Offset Compensation
27 Oct 22
In some embodiments, a circuit includes: a first chopping circuit configured to receive an input signal and generate a modulated signal responsive to the input signal; first and second input capacitors selectively coupled to receive a modulated signal or a common-mode voltage; an amplifier having an input and an output, the input coupled to the first and second input capacitors; an auto-zeroing circuit comprising one or more auto-zeroing feedback capacitors selectively coupled between the amplifier input and output; a gain selection circuit comprising one or more gain selection feedback capacitors coupled to the amplifier input and selectively coupled to the amplifier output or the common-mode voltage; an offset compensation circuit comprising one or more offset capacitors coupled to the amplifier input and selectively coupled to a reference voltage or the common-mode voltage; and a second chopping circuit configured to generate a demodulated signal responsive to the amplifier output.
Karel Znojemsky, Richard Stary
Filed: 21 Apr 21
Utility
System and Related Techniques That Provide an Angle Sensor for Sensing an Angle of Rotation of a Ferromagnetic Screw
20 Oct 22
A system and a method can use a magnetic field sensor to measure rotation angles of a ferromagnetic object in the form of a screw having screw threads.
Aurelian Diaconu, Paul A. David
Filed: 16 Apr 21