Patents by Inventor Ryan Metivier

Ryan Metivier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Methods and apparatus for magnetic sensors having highly uniform magnetic fields
    Patent number: 10215550
    Abstract: Methods and apparatus for a magnetic sensor including an elliptical magnet to generate substantially circular concentric zones of similar flux density in a plane over and parallel to a surface of the magnet. The sensor can include a sensing element disposed a selected distance from the magnet and a substrate containing circuitry to process a signal from the sensing element to provide a sensor output.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: February 26, 2019
    Assignee: ALLEGRO MICROSYSTEMS, LLC
    Inventors: Ryan Metivier, William P. Taylor
  • Magnetic field sensor and related techniques that inject a synthesized error correction signal into a signal channel to result in reduced error
    Patent number: 10120042
    Abstract: A magnetic field sensor has an error correction signal generator circuit to inject an error correction signal into a primary signal channel to cancel an error signal component in the primary signal channel.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: November 6, 2018
    Assignee: Allegro MicroSystems, LLC
    Inventors: Aurelian Diaconu, Ryan Metivier
  • Systems and methods for a magnet with uniform magnetic flux
    Patent number: 9583247
    Abstract: A magnet includes a magnetic body having a length and width. The body has a first notch in one side and extending along at least a portion of the length of the body, and a second notch in an opposite side of the body extending along at least a portion of the length of the body. A magnetic field produced by the body has a substantially uniform magnetic flux along at least a portion of the length of the body. A system for detecting a target includes one or more magnetic field sensing elements positioned within the portion of the magnetic field having substantially uniform flux.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: February 28, 2017
    Assignee: Allegro MicroSystems, LLC
    Inventors: Paul A. David, Ryan Metivier
  • Systems and Methods for a Magnet with Uniform Magnetic Flux
    Publication number: 20150345990
    Abstract: A magnet includes a magnetic body having a length and width. The body has a first notch in one side and extending along at least a portion of the length of the body, and a second notch in an opposite side of the body extending along at least a portion of the length of the body. A magnetic field produced by the body has a substantially uniform magnetic flux along at least a portion of the length of the body. A system for detecting a target includes one or more magnetic field sensing elements positioned within the portion of the magnetic field having substantially uniform flux.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 3, 2015
    Applicant: Allegro Microsystems, LLC
    Inventors: Paul A. David, Ryan Metivier
  • Magnetic Field Sensor And Related Techniques That Inject A Synthesized Error Correction Signal Into A Signal Channel To Result In Reduced Error
    Publication number: 20150176963
    Abstract: A magnetic field sensor has an error correction signal generator circuit to inject an error correction signal into a primary signal channel to cancel an error signal component in the primary signal channel.
    Type: Application
    Filed: December 23, 2013
    Publication date: June 25, 2015
    Applicant: Allegro Microsystems, LLC
    Inventors: Aurelian Diaconu, Ryan Metivier
  • Circuits and methods for automatically adjusting a magnetic field sensor in accordance with a speed of rotation sensed by the magnetic field sensor
    Patent number: 8793085
    Abstract: A magnetic field sensor and a method used therein provide a measured signal representative of an angular speed of rotation of a target object. The magnetic field sensor, in accordance with the measured speed of rotation, can automatically change various characteristics of the magnetic field sensor.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: July 29, 2014
    Assignee: Allegro Microsystems, LLC
    Inventors: Mark J. Donovan, Michael C. Doogue, Ryan Metivier
  • Magnetic angle and rotation speed sensor with continuous and discontinuous modes of operation based on rotation speed of a target object
    Patent number: 8729890
    Abstract: A magnetic field sensor and a method used therein provide an output signal in angle units representative of an angle of rotation of a target of and also an output signal in speed units representative of a speed of rotation of the target object. A power control circuit can cycle a magnetic field sensor on and off in accordance with a sensed rotation speed of the object.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: May 20, 2014
    Assignee: Allegro Microsystems, LLC
    Inventors: Mark J. Donovan, Ryan Metivier, Michael C. Doogue
  • METHODS AND APPARATUS FOR MAGNETIC SENSORS HAVING HIGHLY UNIFORM MAGNETIC FIELDS
    Publication number: 20130293220
    Abstract: Methods and apparatus for a magnetic sensor including an elliptical magnet to generate substantially circular concentric zones of similar flux density in a plane over and parallel to a surface of the magnet. The sensor can include a sensing element disposed a selected distance from the magnet and a substrate containing circuitry to process a signal from the sensing element to provide a sensor output.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 7, 2013
    Applicant: ALLEGRO MICROSYSTEMS INC.
    Inventors: Ryan Metivier, William P. Taylor
  • Circuits and Methods for Automatically Adjusting a Magnetic Field Sensor in Accordance with a Speed of Rotation Sensed by the Magnetic Field Sensor
    Publication number: 20130046488
    Abstract: A magnetic field sensor and a method used therein provide a measured signal representative of an angular speed of rotation of a target object. The magnetic field sensor, in accordance with the measured speed of rotation, can automatically change various characteristics of the magnetic field sensor.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 21, 2013
    Applicant: ALLEGRO MICROSYSTEMS, INC.
    Inventors: Mark J. Donovan, Michael C. Doogue, Ryan Metivier
  • Magnetic Field Sensor That Provides an Output Signal Representative of an Angle of Rotation and a Speed of Rotation of a Target Object
    Publication number: 20120262155
    Abstract: A magnetic field sensor and a method used therein provide an output signal in angle units representative of an angle of rotation of a target of and also an output signal in speed units representative of a speed of rotation of the target object. A power control circuit can cycle a magnetic field sensor on and off in accordance with a sensed rotation speed of the object.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 18, 2012
    Applicant: ALLEGRO MICROSYSTEMS, INC.
    Inventors: Mark J. Donovan, Ryan Metivier, Michael C. Doogue