Patents by Inventor Enrico Sentieri

Enrico Sentieri 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).

  • SYSTEM AND METHOD FOR DISK DRIVE FLY HEIGHT MEASUREMENT
    Publication number: 20250201271
    Abstract: A method for determining a fly height includes measuring a first differential voltage between a first head of a disk drive and a reference voltage with a first front end circuit, converting the first differential voltage to a first analog current signal with the first front end circuit, and converting the first analog current signal to a second differential voltage with a first back end circuit. The first front end circuit is coupled with the first head. The first back end circuit is coupled with the first front end circuit. The method further includes determining a first capacitance between the first head and a first disk of the disk drive based on the second differential voltage and determining the fly height between the first head and the first disk using the first capacitance.
    Type: Application
    Filed: October 28, 2024
    Publication date: June 19, 2025
    Inventors: Enrico Sentieri, Paolo Pulici, Enrico Mammei, Michele Bartolini, Matteo Tonelli
  • SYSTEM AND METHOD FOR DISK DRIVE FLY HEIGHT MEASUREMENT
    Publication number: 20250069623
    Abstract: A system for determining a fly height includes a first head of a disk drive, a second head of the disk drive, a capacitive sensor circuit coupled to the first head and the second head, and a logic device coupled to the capacitive sensor circuit. The capacitive sensor circuit is configured to measure a first capacitance between the first head and the first disk, remove noise from the first capacitance using a second capacitance between the second head and the second disk, and based thereon determine a corrected first capacitance. The logic device is configured to determine the fly height between the first head and the first disk using the corrected first capacitance.
    Type: Application
    Filed: November 13, 2024
    Publication date: February 27, 2025
    Inventors: Paolo Pulici, Michele Bartolini, Enrico Sentieri, Enrico Mammei, Matteo Tonelli, Dennis Hogg
  • System and method for disk drive fly height measurement
    Patent number: 12170103
    Abstract: A system for determining a fly height includes a first head of a disk drive, a second head of the disk drive, a capacitive sensor circuit coupled to the first head and the second head, and a logic device coupled to the capacitive sensor circuit. The capacitive sensor circuit is configured to measure a first capacitance between the first head and the first disk, remove noise from the first capacitance using a second capacitance between the second head and the second disk, and based thereon determine a corrected first capacitance. The logic device is configured to determine the fly height between the first head and the first disk using the corrected first capacitance.
    Type: Grant
    Filed: August 11, 2023
    Date of Patent: December 17, 2024
    Inventors: Paolo Pulici, Michele Bartolini, Enrico Sentieri, Enrico Mammei, Matteo Tonelli, Dennis Hogg
  • System and method for disk drive fly height measurement
    Patent number: 12165680
    Abstract: A method for determining a fly height includes measuring a first differential voltage between a first head of a disk drive and a reference voltage with a first front end circuit, converting the first differential voltage to a first analog current signal with the first front end circuit, and converting the first analog current signal to a second differential voltage with a first back end circuit. The first front end circuit is coupled with the first head. The first back end circuit is coupled with the first front end circuit. The method further includes determining a first capacitance between the first head and a first disk of the disk drive based on the second differential voltage and determining the fly height between the first head and the first disk using the first capacitance.
    Type: Grant
    Filed: December 13, 2023
    Date of Patent: December 10, 2024
    Assignee: STMICROELECTRONICS INTERNATIONAL N.V.
    Inventors: Enrico Sentieri, Paolo Pulici, Enrico Mammei, Michele Bartolini, Matteo Tonelli
  • SYSTEM AND METHOD FOR DISK DRIVE FLY HEIGHT MEASUREMENT
    Publication number: 20240005956
    Abstract: A system for determining a fly height includes a first head of a disk drive, a second head of the disk drive, a capacitive sensor circuit coupled to the first head and the second head, and a logic device coupled to the capacitive sensor circuit. The capacitive sensor circuit is configured to measure a first capacitance between the first head and the first disk, remove noise from the first capacitance using a second capacitance between the second head and the second disk, and based thereon determine a corrected first capacitance. The logic device is configured to determine the fly height between the first head and the first disk using the corrected first capacitance.
    Type: Application
    Filed: August 11, 2023
    Publication date: January 4, 2024
    Inventors: Paolo Pulici, Michele Bartolini, Enrico Sentieri, Enrico Mammei, Matteo Tonelli, Dennis Hogg
  • System and method for disk drive fly height measurement
    Patent number: 11756582
    Abstract: A system for determining a fly height includes a first head of a disk drive, a second head of the disk drive, a capacitive sensor circuit coupled to the first head and the second head, and a logic device coupled to the capacitive sensor circuit. The capacitive sensor circuit is configured to measure a first capacitance between the first head and the first disk, remove noise from the first capacitance using a second capacitance between the second head and the second disk, and based thereon determine a corrected first capacitance. The logic device is configured to determine the fly height between the first head and the first disk using the corrected first capacitance.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: September 12, 2023
    Assignees: STMicroelectronics, Inc., STMicroelectronics S.r.l.
    Inventors: Paolo Pulici, Dennis Hogg, Michele Bartolini, Enrico Sentieri, Enrico Mammei