Patents by Inventor Charles A. T. Feild

Charles A. T. Feild 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 of and system for support of user devices roaming between routing realms by a single network server
    Patent number: 8054804
    Abstract: A network server provisioning at least one Local Area Network (LAN) comprising a client entry store, a packet driver module, a Dynamic Host Configuration Protocol (DHCP) request handler. The LAN has one or more routing realms. The client entry store stores records representing a user device connecting to the LAN provisioned by the network server as a roaming visitor of the LAN to gain temporal access to an outside network through the LAN, and records representing one or more routing realm top-level devices provided on a top level of each routing realm of the LAN. The packet driver module inspects packets arriving from and directed to the user device, and interacts with the client entry store to process the packets. The DHCP request handler examines address data in DHCP packets received from the user device and the records in the client entry store.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: November 8, 2011
    Assignee: SolutionInc Limited
    Inventors: Keith M. Small, Charles A. T. Feild, James R. Currie
  • Method of and System for Support of User Devices Roaming Between Routing Realms by a Single Network Server
    Publication number: 20090193103
    Abstract: A network server provisioning at least one Local Area Network (LAN) comprising a client entry store, a packet driver module, a Dynamic Host Configuration Protocol (DHCP) request handler. The LAN has one or more routing realms. The client entry store stores records representing a user device connecting to the LAN provisioned by the network server as a roaming visitor of the LAN to gain temporal access to an outside network through the LAN, and records representing one or more routing realm top-level devices provided on a top level of each routing realm of the LAN. The packet driver module inspects packets arriving from and directed to the user device, and interacts with the client entry store to process the packets. The DHCP request handler examines address data in DHCP packets received from the user device and the records in the client entry store.
    Type: Application
    Filed: June 25, 2008
    Publication date: July 30, 2009
    Inventors: Keith M. Small, Charles A.T. Feild, James R. Currie