Patents by Inventor Shang-Shen Tung

Shang-Shen Tung 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 fault-tolerant, scalable and non-blocking three-phase flushing for committing database transactions in a cluster of multiprocessors
    Patent number: 6338146
    Abstract: An apparatus, method and medium for implementing fault-tolerant three-phase flushing for database transaction commits in a cluster including multiple nodes of shared-memory processors. The apparatus, method and medium include executing the primary of a commit coordinator process pair on a first of the nodes and executing its backup on a second node, executing the primary of a resource manager process pair on a third node and executing its backup on a fourth, and executing the primary of a Log process pair on a fifth node and executing its backup on a sixth. The first and second nodes as distinct from each other, as are the third and fourth nodes, as are the fifth and sixth nodes.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: January 8, 2002
    Assignee: Compaq Computer Corporation
    Inventors: Charles S. Johnson, Shang-Shen Tung, Y. C. Cheung, Muhammad Shariq