Patents by Inventor Steven H. Powell

Steven H. Powell 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).

  • Kernels, description tables and device drivers
    Patent number: 5778226
    Abstract: Description tables can be linked to a kernel to form a device driver. The description tables can be device description tables and adapter description tables. The kernel is operating system dependent. The description tables are operating system independent and can be linked to other kernels for other operating systems. A library of kernels for different operating systems can share a common set of kernel requests.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: July 7, 1998
    Assignee: Iomega Corporation
    Inventors: Phillip M. Adams, Larry W. Holmstrom, Steve A. Jacob, Steven H. Powell, Robert F. Condie, Martin L. Culley
  • Kernels, description tables, and device drivers
    Patent number: 5459867
    Abstract: Description tables can be linked to a kernel to form a device driver. The description tables can be device description tables and adapter description tables. The kernel is operating system dependent. The description tables are operating system independent and can be linked to other kernels for other operating systems. A library of kernels for different operating systems can share a common set of kernel requests.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: October 17, 1995
    Assignee: Iomega Corporation
    Inventors: Phillip M. Adams, Larry W. Holmstron, Steve A. Jacob, Steven H. Powell, Robert F. Condie, Martin L. Culley
  • Servo control of seek operation in magnetic disk drive
    Patent number: 4532562
    Abstract: An improved method and apparatus for servo control of the position of a read/write head with respect to a magnetic disk is disclosed. The disk comprises permanently recorded position data information. Upon initiation of a head traverse or "seek" operation, the microprocessor is controlled to select predetermined portions of instruction sequences, all of which sequences are used in the event the seek is such that the head reaches its maximum velocity. Otherwise, portions of the accelerate and decelerate command sequences are chosen together with constant velocity commands as necessary to insure that the head is decelerated smoothly to a stop at the appropriate position.
    Type: Grant
    Filed: November 25, 1983
    Date of Patent: July 30, 1985
    Assignee: Iomega Corporation
    Inventor: Steven H. Powell
  • Servo control of seek operation in magnetic disk drive
    Patent number: 4439800
    Abstract: An improved method and apparatus for servo control of the position of a read/write head with respect to a magnetic disk is disclosed. The disk comprises permanently recorded position data information. Upon initiation of a head traverse or "seek" operation, the microprocessor is controlled to select predetermined portions of instruction sequences, all of which sequences are used in the event the seek is such that the head reaches its maximum velocity. Otherwise, portions of the accelerate and decelerate command sequences are chosen together with constant velocity commands as necessary to insure that the head is decelerated smoothly to a stop at the appropriate position.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: March 27, 1984
    Assignee: Iomega Corporation
    Inventor: Steven H. Powell