Patents by Inventor Christina Hien Tran

Christina Hien Tran 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 apparatus for polling and selecting any paired device in any drawer
    Patent number: 6021475
    Abstract: A device adapter maintains a device polling table in memory that can be dynamically changed in response to disk drive device failures and is updated with each poll so that failed devices can be quickly deleted from the table and alternate device polling mapping can be achieved. A system reconfiguration is not necessary to implement the modifications to the system processing. The device adapter is capable of a greater variety of processing tasks than is conventional, including determining cylinder head position and copying data that otherwise would be performed by a control unit.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: February 1, 2000
    Assignee: International Business Machines Corporation
    Inventors: Tram Thi Mai Nguyen, Thao Bich Bui, Christina Hien Tran
  • Method and apparatus for polling and selecting any paired device in any drawer
    Patent number: 5826046
    Abstract: A device adapter maintains a device polling table in memory that can be dynamically changed in response to disk drive device failures and is updated with each poll so that failed devices can be quickly deleted from the table and alternate device polling mapping can be achieved. A system reconfiguration is not necessary to implement the modifications to the system processing. The device adapter is capable of a greater variety of processing tasks than is conventional, including determining cylinder head position and copying data that otherwise would be performed by a control unit.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: October 20, 1998
    Assignee: International Business Machines Corporation
    Inventors: Tram Thi Mai Nguyen, Thao Bich Bui, Christina Hien Tran