Patents by Inventor Glynda Williams Eaton, legal representative

Glynda Williams Eaton, legal representative 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: 8054577
    Abstract: An integral recording head, for use in a linear tape drive system, includes a circumferentially grooved roller guide assembly and a recording head actuator assembly. The circumferential groove feature is incorporated on the surfaces of the roller guide assembly, and provides a substantial frictional contact force that acts to reduce the lateral motion, and further attenuates high frequency lateral disturbances of the magnetic tape. The reduced high frequency content of the lateral disturbances significantly improves the ability of the actuator to achieve a desired track following control. The grooved roller guide assembly is formed integrally of two solid cylindrical contact surfaces separated by a circumferential slot that accommodates the recording head actuator assembly.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: November 8, 2011
    Assignee: International Business Machines Corporation
    Inventors: James Howard Eaton, Glynda Williams Eaton, legal representative
  • Patent number: 7593194
    Abstract: A multi-channel tape recording head or apparatus that has cable connection pads aligned along a direction that runs substantially perpendicular to a multi-channel tape recording head actuation direction, which allows a ribbon-type external cable, connected to the cable connection pads, to bend in its most flexible direction when the multi-channel tape recording head moves.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: September 22, 2009
    Assignee: International Business Machines Corporation
    Inventors: James Howard Eaton, Glynda Williams Eaton, legal representative
  • Patent number: 7551378
    Abstract: A method and apparatus for writing timing-based magnetic servo band patterns on magnetic storage media. The apparatus includes a magnetic head and a tri-state driver. The driver is adapted to control three magnetic head states including two writes states having positive and negative current outputs, respectively, for performing a write sequence and a rest state, having no current output for avoiding overwriting of the magnetic pattern between write sequences. The driver is further adapted to gradually change the magnetic head state from a rest state to a write state before beginning a write sequence and to gradually change the magnetic head state back to a rest state upon completing a write sequence. Thus, strong uniform signal pulses are produced upon playback of the magnetic pattern.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: June 23, 2009
    Assignee: International Business Machines Corporation
    Inventors: Glynda Williams Eaton, legal representative, James Howard Eaton
  • Patent number: 7460332
    Abstract: An integral recording head, for use in a linear tape drive system, includes a circumferentially grooved roller guide assembly and a recording head actuator assembly. The circumferential groove feature is incorporated on the surfaces of the roller guide assembly, and provides a substantial frictional contact force that acts to reduce the lateral motion, and further attenuates high frequency lateral disturbances of the magnetic tape. The reduced high frequency content of the lateral disturbances significantly improves the ability of the actuator to achieve a desired track following control. The grooved roller guide assembly is formed integrally of two solid cylindrical contact surfaces separated by a circumferential slot that accommodates the recording head actuator assembly.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: December 2, 2008
    Assignee: International Business Machines Corporation
    Inventors: Glynda Williams Eaton, legal representative, James Howard Eaton
  • Patent number: 7280294
    Abstract: A method and apparatus for writing timing-based magnetic servo band patterns on magnetic storage media. The apparatus includes a magnetic head and a tri-state driver. The driver is adapted to control three magnetic head states including two writes states having positive and negative current outputs, respectively, for performing a write sequence and a rest state, having no current output for avoiding overwriting of the magnetic pattern between write sequences. The driver is further adapted to gradually change the magnetic head state from a rest state to a write state before beginning a write sequence and to gradually change the magnetic head state back to a rest state upon completing a write sequence. Thus, strong uniform signal pulses are produced upon playback of the magnetic pattern.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: October 9, 2007
    Assignee: International Business Machines Corporation
    Inventors: Glynda Williams Eaton, legal representative, James Howard Eaton