Patents by Inventor Jae Myung Chung

Jae Myung Chung 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).

  • Selective write power variability for magnetic recording
    Patent number: 9805752
    Abstract: A storage device includes a storage controller that controls a writer to generate a magnetic field at an air-bearing surface (ABS) of a storage medium and to selectively alter a strength of the magnetic field by a predetermined amount when writing data to select data tracks on the storage medium.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 31, 2017
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Jung Min Yoon, Jae Myung Chung, Hwajun Kim
  • SELECTIVE WRITE POWER VARIABILITY FOR MAGNETIC RECORDING
    Publication number: 20170133047
    Abstract: A storage device includes a storage controller that controls a writer to generate a magnetic field at an air-bearing surface (ABS) of a storage medium and to selectively alter a strength of the magnetic field by a predetermined amount when writing data to select data tracks on the storage medium.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 11, 2017
    Inventors: Jung Min Yoon, Jae Myung Chung, Hwajun Kim
  • Asymmetrical write fault thresholds
    Patent number: 9087540
    Abstract: Systems and methods are disclosed that implement asymmetrical write fault thresholds. A data storage device may apply a different write fault threshold to each side of a target track, allowing a write head to deviate from a track center more in one direction than in the other direction. In some embodiments, the asymmetrical write fault thresholds may be applied to shingled tracks, allowing a lower write fault threshold to be applied in the direction of previously written shingled tracks, and a higher write fault threshold to be applied in the direction of tracks which are not yet written.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: July 21, 2015
    Assignee: Seagate Technology LLC
    Inventors: Jungho Lee, Jae Myung Chung, Jung Min Yoon, Hwa Jun Kim