Patents by Inventor Vasilios V. Daskalopoulos

Vasilios V. Daskalopoulos 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 and apparatus for management of network communications
    Patent number: 8972556
    Abstract: A method and apparatus for maintaining a communication link through a NAT or other boundary device. Keep-alive messages (keep-alives) are transmitted and received by the boundary device to maintain the link therethrough. Address information of a keep-alive purports that keep-alive has traversed or is to traverse a predetermined portion of the communication link, such as a wireless “over the air” portion. However, the keep-alive is inhibited from traversing the predetermined portion. This may be accomplished by one or more of: spoofing the origin of the keep-alive such that it only appears to have traversed the predetermined portion; and causing the keep-alive to be discarded before traversal of the predetermined portion. Discard may be facilitated by configuration of the TTL field of the keep-alive or by use of a filtering device.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: March 3, 2015
    Assignee: Sierra Wireless, Inc.
    Inventors: Richard Thomas Kavanaugh, Gustav Gerald Vos, Vasilios V. Daskalopoulos
  • METHOD AND APPARATUS FOR MANAGEMENT OF NETWORK COMMUNICATIONS
    Publication number: 20120284385
    Abstract: A method and apparatus for maintaining a communication link through a NAT or other boundary device. Keep-alive messages (keep-alives) are transmitted and received by the boundary device to maintain the link therethrough. Address information of a keep-alive purports that keep-alive has traversed or is to traverse a predetermined portion of the communication link, such as a wireless “over the air” portion. However, the keep-alive is inhibited from traversing the predetermined portion. This may be accomplished by one or more of: spoofing the origin of the keep-alive such that it only appears to have traversed the predetermined portion; and causing the keep-alive to be discarded before traversal of the predetermined portion. Discard may be facilitated by configuration of the TTL field of the keep-alive or by use of a filtering device.
    Type: Application
    Filed: May 7, 2012
    Publication date: November 8, 2012
    Inventors: Richard Thomas KAVANAUGH, Gustav Gerald Vos, Vasilios V. Daskalopoulos