Patents by Inventor Eman B. Schaffer

Eman B. Schaffer 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).

  • Transporting X.25-over-ISDN through IP, using CUGS/protocol translation
    Patent number: 8391293
    Abstract: In one example embodiment, the method includes receiving an X.25 packet at a LAN interface of a network device. Further, the method includes determining whether a local CUG value is associated with the X.25 packet. The local CUG value may be replaced with a network CUG value associated with the X.25 packet. Thereafter, the X.25 packet, and the associated network CUG value, may be formatted to generate an IP packet. The formatting may include the use of at least one formatting regime including encapsulating the X.25 packet, that includes the associated network CUG value, in an XOT, or using protocol translation to translate the X.25 packet that includes the network CUG value into an equivalent IP packet. The method includes transmitting the IP packet using a WAN interface card, the WAN interface card including a primary interface, and at least one backup interface.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: March 5, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Ramesh Srinivasan, Eman B. Schaffer, Stephen Canby, Jose Martin Ruiz, Subramaniam Mahadevan
  • TRANSPORTING X.25-OVER-ISDN THROUGH IP, USING CUGS/PROTOCOL TRANSLATION
    Publication number: 20090196299
    Abstract: In one example embodiment, the method includes receiving an X.25 packet at a LAN interface of a network device. Further, the method includes determining whether a local CUG value is associated with the X.25 packet. The local CUG value may be replaced with a network CUG value associated with the X.25 packet. Thereafter, the X.25 packet, and the associated network CUG value, may be formatted to generate an IP packet. The formatting may include the use of at least one formatting regime including encapsulating the X.25 packet, that includes the associated network CUG value, in an XOT, or using protocol translation to translate the X.25 packet that includes the network CUG value into an equivalent IP packet. The method includes transmitting the IP packet using a WAN interface card, the WAN interface card including a primary interface, and at least one backup interface.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 6, 2009
    Inventors: Ramesh Srinivasan, Eman B. Schaffer, Stephen Canby, Jose Martin Ruiz, Subramaniam Mahadevan