Patents by Inventor Jan P. Nost

Jan P. Nost 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).

  • Patent number: 5280529
    Abstract: A secure communications network having different types of subscriber terminals (1-4) and switching modules (7-8) connected to other switching modules in the network includes cryptographic devices (13-15) where at least one of the cryptographic devices is a cryptographic-pool device having a number of cryptographic modules (35) wherein the cryptographic-pool device is physically separated from the switching modules (7,8), and wherein at least one of the cryptographic-pool devices (13-18) is within a security guard (9 or 10) connected between a switching module (7 or 8) and the network. A security guard may include routing devices (32,31) or handling control signals that specify protection criteria. A managing device (30) may also be included within a security guard for deciding the manner for carrying a communication channel through the security guard and for setting out rules for governing security-guard decision-making. The managing device may be selectively controlled both on-line and off-line.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: January 18, 1994
    Assignee: Alcatel STK A/S
    Inventor: Jan P. Nost