Patents by Inventor Charles G. Von Hammerstein

Charles G. Von Hammerstein 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).

  • Segmented permanent virtual circuits
    Patent number: 6292495
    Abstract: An apparatus and method for communicating link status information for permanent virtual circuits that share a data link connection identifier. A first frame relay packet that includes link status information for a plurality of virtual circuits that each share a first data link connection identifier is received via a frame relay network. Using the link status information in the first frame relay packet, a second frame relay packet that conforms to a standard local management interface status message format is generated. The second frame relay packet is transmitted to customer premise equipment.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: September 18, 2001
    Assignee: Cisco Technology, Inc.
    Inventors: Charles G. Von Hammerstein, Robert Simon