Patents by Inventor Kenneth H. Sinden

Kenneth H. Sinden 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).

  • Magnetic disc storage device with track centering correction
    Patent number: 4149199
    Abstract: In a magnetic disc data storage device using exchangeable magnetic discs for recording data signals, a track containing reference signals is provided and a read-write head is moved to the reference track and as the disc rotates, the position of the head relative to the axis of rotation of the head is sampled. Any errors in the position of the reference signals due to eccentricity of the track are stored and are used during subsequent accesses of data tracks on the disc to modify the head position so as to ensure that the head follows a track having a predetermined spatial relationship with the reference track.
    Type: Grant
    Filed: July 6, 1977
    Date of Patent: April 10, 1979
    Assignee: Data Recording Instrument Company Ltd.
    Inventors: David M. Chick, Kenneth H. Sinden