Patents by Inventor David Scott C. Amiss

David Scott C. Amiss 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).

  • Patent number: 11482247
    Abstract: A data storage device is disclosed comprising a head actuated over a magnetic media comprising a plurality of tracks. A first pattern of magnetic transitions is written to a first segment of a first track. Preparation is made to write a second pattern of magnetic transitions to a second segment of a second track adjacent the first segment of the first track. When the second pattern matches the first pattern, a write boost is configured to a first setting, and when the second pattern does not match the first pattern, the write boost is configured to a second setting. The second pattern of magnetic transitions is then written to the second segment of the second track using the configured write boost.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: October 25, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Guoxiao Guo, Charles A. Park, David Scott C. Amiss, Duc H. Banh, Joey M. Poss, Weldon M. Hanson
  • Publication number: 20220246173
    Abstract: A data storage device is disclosed comprising a head actuated over a magnetic media comprising a plurality of tracks. A first pattern of magnetic transitions is written to a first segment of a first track. Preparation is made to write a second pattern of magnetic transitions to a second segment of a second track adjacent the first segment of the first track. When the second pattern matches the first pattern, a write boost is configured to a first setting, and when the second pattern does not match the first pattern, the write boost is configured to a second setting. The second pattern of magnetic transitions is then written to the second segment of the second track using the configured write boost.
    Type: Application
    Filed: February 23, 2021
    Publication date: August 4, 2022
    Inventors: Guoxiao Guo, Charles A. Park, David Scott C. Amiss, Duc H. Banh, Joey M. Poss, Weldon M. Hanson
  • Patent number: 11200912
    Abstract: A data storage device is disclosed comprising a head actuated over a magnetic media. A write boost is configured to a first setting, and a first pattern of magnetic transitions is written to a first servo field of a servo sector on the magnetic media using the first setting for the write boost. The write boost is configured to a second setting different from the first setting, and the first pattern of magnetic transitions is written to a second servo field of the servo sector on the magnetic media using the second setting for the write boost.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: December 14, 2021
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Guoxiao Guo, Charles A. Park, David Scott C. Amiss, Duc H. Banh, Joey M. Poss, Weldon M. Hanson
  • Patent number: 10410656
    Abstract: A data storage device is disclosed comprising a head actuated over a disk, wherein the head comprises a spin torque oscillator (STO). A first bias signal is applied to the STO during a first interval preceding a write operation to write data to the disk, wherein the first bias signal causes the STO to protrude toward the disk. After the first interval, a second bias signal is applied to the STO during a second interval spanning at least part of the write operation, wherein an amplitude of the first bias signal is in the range of 1.1 to 1.5 times an amplitude of the second bias signal.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: September 10, 2019
    Assignee: Western Digital Technologies, Inc.
    Inventors: Guoxiao Guo, Soo-Choon Kang, Hongchao T. Zhao, David Scott C. Amiss, Duc H. Banh