Patents by Inventor Carl Madison

Carl Madison 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: 8897113
    Abstract: A data storage and retrieval system includes a head carriage unit adapted for rotational motion and having multiple heads disposed at a working surface. The system also includes a tape drive unit configured to move a tape media past the working surface of the head carriage unit, the tape media having a width approximately equal to a width of the working surface. As the head carriage unit rotates and the tape moves past the working surface, a first head is configured to write a data track to the tape and a second head is configured to thereafter read the data track, where data read by the second head is for use in verifying data integrity and performing error correction.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: November 25, 2014
    Assignee: Oracle International Corporation
    Inventors: Carl Madison, Timothy C. Ostwald
  • Patent number: 8793713
    Abstract: A data storage and retrieval system includes a head carriage unit having multiple heads disposed at a working surface and a tape drive unit configured to move the tape past the working surface of the head carriage unit in a direction substantially parallel to a tape length. The heads are configured to write primary data tracks to or read primary data tracks from the tape as the head carriage unit rotates and the tape moves past the working surface, the primary data tracks having an arcuate shape and extending substantially along a tape width. The heads are also configured to write at least one secondary data track to or read at least one secondary data track from the tape as the head carriage unit rotates and the tape moves past the working surface, the at least one secondary data track extending substantially along the tape length.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: July 29, 2014
    Assignee: Oracle International Corporation
    Inventors: Carl Madison, Timothy C. Ostwald
  • Patent number: 8780682
    Abstract: A data storage and retrieval system includes a head carriage unit adapted for rotational motion and having multiple heads disposed at a working surface, the head carriage unit adapted for rotational motion. The system also includes a tape drive unit configured to move a tape media past the working surface of the head carriage unit, the tape media having a width approximately equal to a width of the working surface of the head carriage unit. As the head carriage unit rotates and the tape moves past the working surface, a first head is configured to write a data track on the tape and a second head is configured to thereafter read the data track, where data read by the second head is for use in verifying data erasure.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: July 15, 2014
    Assignee: Oracle International Corporation
    Inventors: Carl Madison, Timothy C. Ostwald
  • Publication number: 20140126343
    Abstract: A data storage and retrieval system includes a head carriage unit adapted for rotational motion and having multiple heads disposed at a working surface, the head carriage unit adapted for rotational motion. The system also includes a tape drive unit configured to move a tape media past the working surface of the head carriage unit, the tape media having a width approximately equal to a width of the working surface of the head carriage unit. As the head carriage unit rotates and the tape moves past the working surface, a first head is configured to write a data track on the tape and a second head is configured to thereafter read the data track, where data read by the second head is for use in verifying data erasure.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: Carl Madison, Timothy C. Ostwald
  • Publication number: 20140126344
    Abstract: A data storage and retrieval system includes a head carriage unit adapted for rotational motion and having multiple heads disposed at a working surface. The system also includes a tape drive unit configured to move a tape media past the working surface of the head carriage unit, the tape media having a width approximately equal to a width of the working surface. As the head carriage unit rotates and the tape moves past the working surface, a first head is configured to write a data track to the tape and a second head is configured to thereafter read the data track, where data read by the second head is for use in verifying data integrity and performing error correction.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: Carl Madison, Timothy C. Ostwald
  • Publication number: 20140130067
    Abstract: A data storage and retrieval system includes a head carriage unit having multiple heads disposed at a working surface and a tape drive unit configured to move the tape past the working surface of the head carriage unit in a direction substantially parallel to a tape length. The heads are configured to write primary data tracks to or read primary data tracks from the tape as the head carriage unit rotates and the tape moves past the working surface, the primary data tracks having an arcuate shape and extending substantially along a tape width. The heads are also configured to write at least one secondary data track to or read at least one secondary data track from the tape as the head carriage unit rotates and the tape moves past the working surface, the at least one secondary data track extending substantially along the tape length.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Applicant: Oracle International Corporation
    Inventors: Carl Madison, Timothy C. Ostwald