Patents by Inventor Shinya Osaki

Shinya Osaki 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).

  • Methods and apparatus for data storage on magnetic media including error correction codes
    Patent number: 6631485
    Abstract: In a digital data storage system providing two or more levels of interleaved Reed-Solomon error correction coding together with a track checksum, the track checksum is calculated according to an algorithm which has no correlation with the Reed-Solomon codeword generation rules. This allows miscorrections at the C2 correction level to be determined reliably thereby enhancing the correction rate. Also disclosed is a system which uses the enhanced ability to identify C2 miscorrections, to mark C2 miscorrections to the third level of error correction thereby allowing double error correct at the third level.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: October 7, 2003
    Assignees: Hewlett-Packard Development Company, L.C., Sony Corporation
    Inventors: Stephen Morley, Robert Williams, Shinya Osaki, Mark Robert Watkins, Toshiyuki Hirose