Patents by Inventor James Thomas Rayfield

James Thomas Rayfield 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: 6161145
    Abstract: In a data processing environment where a client requests a server to perform part of its processing, a method of updating the client's version of server-related data without requiring the client to be a server, includes steps of: receiving, at a control point server, a first request from the client requesting that server-related data be transferred from the control point server to the client; and in response to the first request, sending the server-related data from the control point server to the client, along with a unique bind token identifying a version number of the server-related data such that each time the server-related data changes a new unique bind token is associated with the data, where the client uses the server-related data to form a second request for the server to perform part of the client's processing, and where the client sends said bind token to the server as part of the second request.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: December 12, 2000
    Assignee: International Business Machines Corporation
    Inventors: Andrew John Bainbridge, Stephen James Cocks, Donald Francis Ferguson, Thomas Freund, Avraham Leff, Glyn Normington, James Thomas Rayfield, Robert Anthony Storey
  • Patent number: 6014700
    Abstract: A method of performing workload management within an object-oriented client/server computing environment wherein one of a plurality of servers is chosen to satisfy a client request based on at least one workload management policy, said method, which takes place within the client, includes steps of: deciding whether a client application program has issued a request for a server to do some work; forming an extended object reference based on said request, said extended object reference having, in addition to a server address field and an object key field, at least one additional field; accessing workload management policy data based on said extended object reference; and selecting one of said plurality of servers based on said accessed workload management policy data.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: January 11, 2000
    Assignee: International Business Machines Corporation
    Inventors: Andrew John Bainbridge, Stephen James Cocks, Donald Francis Ferguson, Thomas Freund, Avraham Leff, Glyn Normington, James Thomas Rayfield, Robert Anthony Storey
  • Patent number: 5835711
    Abstract: A leaky bucket checker which combines synchronous updates with event driven asynchronous updates triggered by packet arrivals. A synchronous update is performed exactly as an event-driven update by assuming that a packet of length zero has arrived at the time of the update. These updates are performed in a round robin fashion on each connection. Therefore, assuming that one such update can be performed in each clock tick, the maximum bit representation of the last update time state variable can be limited to N bits for 2.sup.N total connections. Given the reduced processing and storage costs, a great number of network connections and leaky bucket checkers is possible.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: November 10, 1998
    Assignee: International Business Machines Corporation
    Inventors: Paul Chang, Roch A. Guerin, Abhay Kumar Parekh, James Thomas Rayfield