Patents by Inventor Peter G. Wells

Peter G. Wells 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 error detection in a magnetic field sensor
    Patent number: 10156461
    Abstract: A magnetic field sensor for detecting motion of an object includes error detection circuiting and processing. Magnetic field sensing elements are configured to generate at least two magnetic field signals in response to a magnetic field associated with the object which signals are used by detectors to generate right and left channel signals with edges indicative of motion of the object. A direction calculation processor responsive to right and left channel signals generates a direction signal having a state indicative of a direction of motion of the object and an output signal generator generates an output signal having a pulse indicative of the direction of motion of the object in response to the direction signal. An error detection processor responsive to the output signal and to the direction signal is configured to detect an error in at least one of the direction signal and the output signal.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: December 18, 2018
    Assignee: Allegro MicroSystems, LLC
    Inventors: Steven E. Snyder, Craig McConnell, Peter G. Wells
  • METHODS AND APPARATUS FOR ERROR DETECTION IN A MAGNETIC FIELD SENSOR
    Publication number: 20160123780
    Abstract: A magnetic field sensor for detecting motion of an object includes error detection circuiting and processing. Magnetic field sensing elements are configured to generate at least two magnetic field signals in response to a magnetic field associated with the object which signals are used by detectors to generate right and left channel signals with edges indicative of motion of the object. A direction calculation processor responsive to right and left channel signals generates a direction signal having a state indicative of a direction of motion of the object and an output signal generator generates an output signal having a pulse indicative of the direction of motion of the object in response to the direction signal. An error detection processor responsive to the output signal and to the direction signal is configured to detect an error in at least one of the direction signal and the output signal.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 5, 2016
    Applicant: Allegro Microsystems, LLC
    Inventors: Steven E. Snyder, Craig McConnell, Peter G. Wells