Patents by Inventor David Brownhill

David Brownhill 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).

  • Dynamic tunneling over virtual private network connections based on network conditions
    Patent number: 8627449
    Abstract: Techniques are provided for transmitting data securely across virtual private network (VPN) connections. A first VPN connection is initiated between a first device and a second device. The second device selects a first communication protocol to be used for the first VPN connection with the first device. The first device generates session identification data associated with the first VPN connection and sends the session identification data to the second device over the first VPN. The second device receives the session identification data and stores it. The second device determines when the first VPN connection has been disrupted. The second device then selects a second communication protocol and initiates a second VPN connection using the second communication protocol with the first device. The second device transmits the session identification data to the first device, and the first device associates the second VPN connection with the first VPN connection using session identification data.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: January 7, 2014
    Assignee: Cisco Technology, Inc.
    Inventors: Vincent Parla, Todd Short, Marc Tardif, David Brownhill
  • Dynamic Tunneling over Virtual Private Network Connections based on Network Conditions
    Publication number: 20120227102
    Abstract: Techniques are provided for transmitting data securely across virtual private network (VPN) connections. A first VPN connection is initiated between a first device and a second device. The second device selects a first communication protocol to be used for the first VPN connection with the first device. The first device generates session identification data associated with the first VPN connection and sends the session identification data to the second device over the first VPN. The second device receives the session identification data and stores it. The second device determines when the first VPN connection has been disrupted. The second device then selects a second communication protocol and initiates a second VPN connection using the second communication protocol with the first device. The second device transmits the session identification data to the first device, and the first device associates the second VPN connection with the first VPN connection using session identification data.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 6, 2012
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Vincent Parla, Todd Short, Marc Tardif, David Brownhill