Patents by Inventor Dan Marvin Neal

Dan Marvin Neal 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).

  • Method and system for providing hot plug of adapter cards in an expanded slot environment
    Patent number: 6338107
    Abstract: A method of providing an interconnection between one or more peripheral devices and a system bus of a computer system selectively establishes and removes a connection from a primary peripheral bus to a secondary peripheral buses, and determines a target from among the one or more peripheral devices when a bus bridge is a master of the primary peripheral bus, using an address decoder. Access to and from the primary peripheral bus is controlled using an arbiter to select a master for the primary peripheral bus from among the one or more peripheral devices, to allow both (i) selective establishing and removing of a connection from the primary peripheral bus to one of the secondary peripheral buses in response to the selection of the master, and (ii) isolating of the master prior to establishing the connection to the secondary peripheral bus. Hot Plug Control Logic and Switch Control Logic in conjunction with the arbiter allows Hot Plug support along with the expanded slot environment.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: January 8, 2002
    Assignee: International Business Machines Corporation
    Inventors: Dan Marvin Neal, Richard Allen Kelley
  • Method and system for PCI slot expansion via electrical isolation
    Patent number: 6237057
    Abstract: A method of providing an interconnection between one or more peripheral devices and a system bus of a computer system selectively establishes and removes a connection from a primary peripheral bus to a secondary peripheral buses, and determines a target from among the one or more peripheral devices when a bus bridge is a master of the primary peripheral bus, using an address decoder. Access to and from the primary peripheral bus is controlled using an arbiter to select a master for the primary peripheral bus from among the one or more peripheral devices, to allow both (i) selective establishing and removing of a connection from the primary peripheral bus to one of the secondary peripheral buses in response to the selection of the master, and (ii) isolating of the master prior to establishing the connection to the secondary peripheral bus.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: May 22, 2001
    Assignee: International Business Machines Corporation
    Inventors: Dan Marvin Neal, Richard Allen Kelley
  • Method and system for providing peer-to-peer control in an expanded slot environment using a bridge as an agent for controlling peripheral device
    Patent number: 6195723
    Abstract: A method of providing an interconnection between one or more peripheral devices and a system bus of a computer system selectively establishes and removes a connection from a primary peripheral bus to a secondary peripheral buses, and determines a target from among the one or more peripheral devices when a bus bridge is a master of the primary peripheral bus, using an address decoder. Access to and from the primary peripheral bus is controlled using an arbiter to select a master for the primary peripheral bus from among the one or more peripheral devices, to allow both (i) selective establishing and removing of a connection from the primary peripheral bus to one of the secondary peripheral buses in response to the selection of the master, and (ii) isolating of the master prior to establishing the connection to the secondary peripheral bus.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: February 27, 2001
    Assignee: International Business Machines Corporation
    Inventors: Dan Marvin Neal, Richard Allen Kelley