Patents by Inventor Thomas P. Van Wormer

Thomas P. Van Wormer 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 arbitrating transactions between domains in a computer system
    Patent number: 6915450
    Abstract: A method for communicating transactions includes providing an interconnect having a plurality of ports for communicating transactions between a plurality of domains in a computing system is provided. Each port is associated with a subset of the domains. The interconnect includes a first signal path for transmitting a first portion of the transaction and a second signal path for transmitting a second portion of the transaction. A transaction issued from a port associated with more than one of the domains is identified. An error in one of the first and second portions of the transaction is identified. The transaction is canceled responsive to identifying the error. A computing system for communicating transactions includes first and second devices. The first device is adapted to receive a first portion of a transaction. The second device is adapted to receive a second portion of the transaction in lockstep with respect to the first device.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: July 5, 2005
    Assignee: Sun Microsystems, Inc.
    Inventors: Andrew E. Phelps, Thomas P. Van Wormer, Gary L. Riddle
  • Method and apparatus for arbitrating transactions between domains in a computer system
    Publication number: 20030084373
    Abstract: A method for communicating transactions includes providing an interconnect having a plurality of ports for communicating transactions between a plurality of domains in a computing system is provided. Each port is associated with a subset of the domains. The interconnect includes a first signal path for transmitting a first portion of the transaction and a second signal path for transmitting a second portion of the transaction. A transaction issued from a port associated with more than one of the domains is identified. An error in one of the first and second portions of the transaction is identified. The transaction is canceled responsive to identifying the error. A computing system for communicating transactions includes first and second devices. The first device is adapted to receive a first portion of a transaction. The second device is adapted to receive a second portion of the transaction in lockstep with respect to the first device.
    Type: Application
    Filed: November 1, 2001
    Publication date: May 1, 2003
    Applicant: Sun Microsystems, Inc.
    Inventors: Andrew E. Phelps, Thomas P. Van Wormer, Gary L. Riddle