Patents by Inventor Todd Michael Lammers

Todd Michael Lammers 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).

  • CHANGING CHARACTERISTICS OF SIGNAL PATTERNS TO REDUCE ADJACENT TRACK INTERFERENCE
    Publication number: 20170103781
    Abstract: First and second signal patterns are used to write corresponding portions of first and second adjacent tracks to a magnetic storage medium. A characteristic of the first signal pattern is changed based on the second signal pattern, the changing of the characteristic reducing an adjacent track interference affecting the second track.
    Type: Application
    Filed: October 9, 2015
    Publication date: April 13, 2017
    Inventors: Todd Michael Lammers, Kaizhong Gao
  • Preamplifier for adjustable write current
    Patent number: 9355677
    Abstract: The implementations disclosed herein provide for a storage device including a preamplifier that dynamically adjusts at least one of a rise time and fall time of an analog write current pulse based on a length of a corresponding write transition and/or characteristics of a media location where the write transition is to be recorded.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: May 31, 2016
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Todd Michael Lammers, Housan Dakroub, Jason C. Jury
  • Magnetic head with integrated write driver
    Patent number: 9269377
    Abstract: An apparatus and associated method generally relate to data writing and more specifically to writing data to a rotating media. An embodiment of such an apparatus comprises a slider body, a transducer and a write driver. The transducer comprises a writer. The write driver is integrated on the slider body, and directly connected to the writer.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: February 23, 2016
    Assignee: Seagate Technology LLC
    Inventors: Mark Anthony Gubbins, Todd Michael Lammers
  • Windowed reference planes for embedded conductors
    Patent number: 9241400
    Abstract: A rigid multi-layer printed circuit board (PCB) has an embedded elongated conductor between opposing first and second reference planes. The first and second reference planes are formed of conductive material and are electrically isolated from the conductor by intervening insulative material. Each of the first and second reference planes have a plurality of spaced apart windows extending therethrough, the windows aligned with the elongated conductor.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: January 19, 2016
    Assignee: Seagate Technology LLC
    Inventors: John Wayne Shaw, Jacob Charles Matousek, Todd Michael Lammers
  • Multi-sensor data transducer
    Patent number: 9147431
    Abstract: Method and apparatus for decoding data, such as from a rotatable magnetic recording medium. In accordance with some embodiments, a plurality of sensors is provided, with each sensor configured to generate a sense signal from an adjacent pattern. A processing circuit is configured to decode data from the adjacent pattern using the generated sense signals.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: September 29, 2015
    Assignee: Seagate Technology LLC
    Inventors: Todd Michael Lammers, Robert Matousek, William Michael Radich
  • PREAMPLIFIER FOR ADJUSTABLE WRITE CURRENT
    Publication number: 20150213813
    Abstract: The implementations disclosed herein provide for a storage device including a preamplifier that dynamically adjusts at least one of a rise time and fall time of an analog write current pulse based on a length of a corresponding write transition and/or characteristics of a media location where the write transition is to be recorded.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 30, 2015
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Todd Michael Lammers, Housan Dakroub, Jason C. Jury
  • Magnetic Head With Integrated Write Driver
    Publication number: 20150103442
    Abstract: An apparatus and associated method generally relate to data writing and more specifically to writing data to a rotating media. An embodiment of such an apparatus comprises a slider body, a transducer and a write driver. The transducer comprises a writer. The write driver is integrated on the slider body, and directly connected to the writer.
    Type: Application
    Filed: December 18, 2014
    Publication date: April 16, 2015
    Inventors: Mark Anthony Gubbins, Todd Michael Lammers
  • Windowed Reference Planes for Embedded Conductors
    Publication number: 20150055307
    Abstract: A rigid multi-layer printed circuit board (PCB) has an embedded elongated conductor between opposing first and second reference planes. The first and second reference planes are formed of conductive material and are electrically isolated from the conductor by intervening insulative material. Each of the first and second reference planes have a plurality of spaced apart windows extending therethrough, the windows aligned with the elongated conductor.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: John Wayne Shaw, Jacob Charles Matousek, Todd Michael Lammers
  • MULTI-SENSOR DATA TRANSDUCER
    Publication number: 20150043098
    Abstract: Method and apparatus for decoding data, such as from a rotatable magnetic recording medium. In accordance with some embodiments, a plurality of sensors is provided, with each sensor configured to generate a sense signal from an adjacent pattern. A processing circuit is configured to decode data from the adjacent pattern using the generated sense signals.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 12, 2015
    Applicant: Seagate Technology LLC
    Inventors: Todd Michael Lammers, Robert Matousek, William Michael Radich
  • Adjusting a preamp write current to apply an asymmetric signal at a write head
    Patent number: 8687311
    Abstract: A first parameter associated with a writer preamp is defined. A write current of the writer preamp is adjusted in accordance with the first parameter so that an asymmetric signal is applied at a write head. The asymmetric signal results in symmetric writing of bits to a medium.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: April 1, 2014
    Assignee: Seagate Technology LLC
    Inventors: Housan Dakroub, Todd Michael Lammers, Thomas Lee Schick
  • ADJUSTING A PREAMP WRITE CURRENT TO APPLY AN ASYMMETRIC SIGNAL AT A WRITE HEAD
    Publication number: 20130301156
    Abstract: A first parameter associated with a writer preamp is defined. A write current of the writer preamp is adjusted in accordance with the first parameter so that an asymmetric signal is applied at a write head. The asymmetric signal results in symmetric writing of bits to a medium.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 14, 2013
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Housan Dakroub, Todd Michael Lammers, Thomas Lee Schick
  • MAGNETIC HEAD WITH INTEGRATED WRITE DRIVER
    Publication number: 20110116193
    Abstract: An apparatus comprises a slider body, a transducer and a write driver. The transducer comprises a writer. The write driver is integrated on the slider body, and directly connected to the writer.
    Type: Application
    Filed: November 16, 2009
    Publication date: May 19, 2011
    Applicant: Seagate Technology LLC
    Inventors: Mark Anthony Gubbins, Todd Michael Lammers