Patents by Inventor Patrick John Korkowski

Patrick John Korkowski 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).

  • Servo grey code error correction
    Patent number: 8972816
    Abstract: The disclosure is related to systems and methods for servo Gray code error detection and correction. A device may include a circuit configured to 1) selectively implement a quality-based error correction system to determine an error in the servo Gray code and correct the error; 2) selectively implement a trajectory-based error correction system to determine an error in the servo Gray code and correct the error; or 3) implement any combination of a quality-based error correction system and a trajectory-based error correction system to determine an error in the servo Gray code and correct the error.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: March 3, 2015
    Assignee: Seagate Technology LLC
    Inventors: Mustafa Can Ozturk, Puskal Prasad Pokharel, Barmeshwar Vikramaditya, Patrick John Korkowski
  • Servo Grey Code Error Correction
    Publication number: 20130250448
    Abstract: The disclosure is related to systems and methods for servo Gray code error detection and correction. A device may include a circuit configured to 1) selectively implement a quality-based error correction system to determine an error in the servo Gray code and correct the error; 2) selectively implement a trajectory-based error correction system to determine an error in the servo Gray code and correct the error; or 3) implement any combination of a quality-based error correction system and a trajectory-based error correction system to determine an error in the servo Gray code and correct the error.
    Type: Application
    Filed: March 22, 2012
    Publication date: September 26, 2013
    Applicant: Seagate Technology LLC
    Inventors: Mustafa Can Ozturk, Puskal Prasad Pokharel, Barmeshwar Vikramaditya, Patrick John Korkowski
  • Measurement of track eccentricity on bit patterned media
    Patent number: 8045282
    Abstract: The eccentricity of tracks defined on a rotating bit patterned media are measured using a readback signal, and the measured eccentricity may be used to control centering of the disk relative to a rotational spindle and/or to control movement of a read/write head relative to a selected track on the disk.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: October 25, 2011
    Assignee: Seagate Technology LLC
    Inventors: Barmeshwar Vikramaditya, Sundeep Chauhan, Patrick John Korkowski
  • Deterministic phase mismatch correction in servo position estimation systems
    Patent number: 7859778
    Abstract: A method includes estimating a phase difference between components of a position signal in a servo position estimation system, and correcting the phase difference of the components of the position signal to provide a phase-compensated position signal.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: December 28, 2010
    Assignee: Seagate Technology LLC
    Inventors: Barmeshwar Vikramaditya, Patrick John Korkowski, Richard Lyle Keizer
  • MEASUREMENT OF TRACK ECCENTRICITY ON BIT PATTERNED MEDIA
    Publication number: 20100195235
    Abstract: The eccentricity of tracks defined on a rotating bit patterned media are measured using a readback signal, and the measured eccentricity may be used to control centering of the disk relative to a rotational spindle and/or to control movement of a read/write head relative to a selected track on the disk.
    Type: Application
    Filed: February 3, 2009
    Publication date: August 5, 2010
    Inventors: Barmeshwar Vikramaditya, Sundeep Chauhan, Patrick John Korkowski