Patents by Inventor Scott A. Hughes

Scott A. Hughes 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).

  • Writing and reading user data using servo spirals
    Patent number: 8693131
    Abstract: A system includes a self-servo-write (SSW) module, a read module, and a write module. The SSW module writes servo spirals on a magnetic medium of a hard disk drive (HDD) via a write head of the HDD. The read module reads the servo spirals via a read head of the HDD and generates read signals. The write module writes non-servo data on the magnetic medium via the write head based on the read signals before the SSW module writes servo wedges on the magnetic medium.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: April 8, 2014
    Assignee: Marvell International Ltd.
    Inventors: Jerome F. Richgels, Henri Sutioso, Allen Cheng Wu Hu, Scott A. Hughes
  • Writing and reading user data using servo spirals
    Patent number: 8223452
    Abstract: A system includes a self-servo-write (SSW) module, a read module, and a write module. The SSW module writes servo spirals on a magnetic medium of a hard disk drive (HDD) via a write head of the HDD. The read module reads the servo spirals via a read head of the HDD and generates read signals. The write module writes non-servo data on the magnetic medium via the write head based on the read signals before the SSW module writes servo wedges on the magnetic medium.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: July 17, 2012
    Assignee: Marvell International Ltd.
    Inventors: Jerome F. Richgels, Henri Sutioso, Allen Cheng Wu Hu, Scott A. Hughes