Patents by Inventor Mark E. Pease

Mark E. Pease 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).

  • Servo address system
    Patent number: 4977472
    Abstract: A dedicated servo disk is encoded with a plurality of bit frames. Each bit frame is positioned between synchronizing bits. Each bit frame contains a first and second portion in timed succession and a plurality of servo bits are arranged in first and second distinct patterns. A bit frame can contain an intermediate code bit with a plurality of intermediate code bits and quadrature position signals used to form the unique track address. The track address is repeated throughout the associated servo track. The dedicated servo disk is used in an servo address system.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: December 11, 1990
    Assignee: Seagate Technology, Inc.
    Inventors: Le Roy A. Volz, Mark E. Pease