Patents by Inventor Shochet Mischo

Shochet Mischo 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: 6366419
    Abstract: Head disc assembly serial number information is encoded in the servo bursts recorded during servo track writing. Specifically, the HDA serial number information is written to the disc during disk manufacture as part of the Servo Track Writing process in between the normal servo frames. The serial number is preferably written on preexisting unique system (non-user) tracks in-between normal servo frames. The encoded serial number can be retrieved by increasing the sampling interval of the servo information, i.e., by over-sampling the servo information. More specifically, by writing the serial number in a servo burst exactly in the middle of two normal servo frames, the information can be retrieved by 2× over-sampling routines called by system diagnostic routines or disc drive certification routines. In addition, a disc drive apparatus having a retrievable encoded head disc assembly serial number is provided.
    Type: Grant
    Filed: August 14, 1999
    Date of Patent: April 2, 2002
    Assignee: Seagate Technology LLC
    Inventors: Stephen Matthew Gaub, Shochet Mischo, Tracy Allen Sowder