Patents by Inventor Michael Constantin Melas

Michael Constantin Melas 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).

  • Matched filter detection for time based servo signals in a tape drive
    Patent number: 6940683
    Abstract: Disclosed are a system, a method, and article of manufacture to provide for filtering a servo signal in a tape drive using a matched filter that is optimized for the operating tape velocity of the tape drive. A servo controller for track following on a tape uses a digital filter implementation of the matched filter to produce a filtered servo signal. The digital filter is optimized for different tape velocities by selecting digital filter coefficients for the digital filter that depend upon the tape velocity presently in use. The filtered servo signal is used by the servo controller to provide improved track following in a tape drive.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: September 6, 2005
    Assignee: International Business Machines Corporation
    Inventors: David Berman, Nhan Xuan Bui, Michael Constantin Melas, Mark Allan Taylor