Patents by Inventor Andrew David Sigal

Andrew David Sigal 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).

  • Dynamic versioning system for multiple users of multi-module software systems
    Patent number: 6182286
    Abstract: A dynamic versioning system for synchronizing different versions of modules among different versions of a complex multi-module software system, and maintaining a consistent view of a version of the complex system for each user having access to the system. The dynamic versioning system grants a user read-only access to the multiple modules in a complex system, and promotes the access to write access only when a user is ready to save a modified module in the permanent non-volatile memory of the complex system. The dynamic versioning system manages the evolving versions of the complex system with a Dynamic Versioning Table (DVT) and master modules that identify the multiple slave modules associated with a particular version of the complex system. Old versions of modules are removed from the complex system's permanent non-volatile memory when the last user has terminated use of the complex system.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: January 30, 2001
    Assignee: Microsoft Corporation
    Inventors: Andrew David Sigal, Daniel Bien, Augusto Pissarra
  • Dynamic versioning system for multiple users of multi-module software system
    Patent number: 5881292
    Abstract: A dynamic versioning system for synchronizing different versions of modules among different versions of a complex multi-module software system, and maintaining a consistent view of a version of the complex system for each user having access to the system. The dynamic versioning system grants a user read-only access to the multiple modules in a complex system, and promotes the access to write access only when a user is ready to save a modified module in the permanent non-volatile memory of the complex system. The dynamic versioning system manages the evolving versions of the complex system with a Dynamic Versioning Table (DVT) and master modules that identify the multiple slave modules associated with a particular version of the complex system. Old versions of modules are removed from the complex system's permanent non-volatile memory when the last user has terminated use of the complex system.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: March 9, 1999
    Assignee: Microsoft Corporation
    Inventors: Andrew David Sigal, Daniel Bien, Augusto Pissarra