Patents by Inventor Douglas Toltzman

Douglas Toltzman 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).

  • Patent number: 5704041
    Abstract: In an Open System Interconnection (OSI) environment, an agent Common Management Information Protocol (CMIP) platform maintains an up to date tree of all of the Managed Object Instances (MOIs), in order to perform scoping functions. The agent platform receives a message from an OSI manager which includes a base MOI and levels below the base MOI to receive the message. The agent platform recurses through the tree below the base MOI to determine which MOIs should receive the message. If the message is delete, the children of MOIs to be deleted are also deleted. The children of undeletable MOIs are not deleted. A current, accurate tree is maintained by the agent platform, which can register a new MOI in the tree when a valid request is received from the MOI or the manager. The agent platform can also deregister an MOI upon valid request from the agent associated with the platform.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: December 30, 1997
    Assignee: International Business Machines Corporation
    Inventors: Wade C. Allen, Jeremy Philip Goodwin, Robert Louis Nielsen, Paul Joseph Reder, Douglas Toltzman
  • Patent number: 5491822
    Abstract: Managed Object Instances (MOIs) in a network of OSI computing systems are created, or deleted, without disrupting their interaction with other managed object instances. This is accomplished by a multi-phase commit process operation where in the first phase, a create or delete request is verified, and the CMIP platform places the created or deleted MOI on a pending list in the CMIP platform, along with information identifying the location of the MOI in a hierarchy of MOIs. In the second phase, the object being created or deleted is asked to accept, or reject, the request. The object responds saying that it accepts or rejects the request. If the request is acceptable, the CMIP platform finishes the object's connection to the tree hierarchy, or disconnects the object from the tree. Then the CMIP platform sends back a message to the object to acknowledge the creation of the object, or to tell the object to delete itself. Finally, the CMIP platform sends a request completion message to the manager.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: February 13, 1996
    Assignee: International Business Machines Corporation
    Inventors: Wade C. Allen, Jeremy P. Goodwin, Robert L. Nielsen, Paul J. Reder, Douglas Toltzman