Patents by Inventor Hidde Beumer

Hidde Beumer 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: 11140555
    Abstract: In one example, a firewall obtains a first network packet that indicates a first mobile country code of a mobile subscriber at a first time and a first mobile network code of the mobile subscriber at the first time. The firewall obtains a second network packet that indicates a second mobile country code of the mobile subscriber at a second time and a second mobile network code of the mobile subscriber at the second time. The firewall determines whether the first mobile country code is different from the second mobile country code or the first mobile network code is different from the second mobile network code. If so, the firewall determines whether a difference between the second time and the first time is less than a threshold difference. If so, the firewall associates the second network packet with a potential security threat.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: October 5, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Hien Thi Thai, Andrew Fu-Chung Teng, Pramod Nair, Hidde Beumer
  • Publication number: 20200404490
    Abstract: In one example, a firewall obtains a first network packet that indicates a first mobile country code of a mobile subscriber at a first time and a first mobile network code of the mobile subscriber at the first time. The firewall obtains a second network packet that indicates a second mobile country code of the mobile subscriber at a second time and a second mobile network code of the mobile subscriber at the second time. The firewall determines whether the first mobile country code is different from the second mobile country code or the first mobile network code is different from the second mobile network code. If so, the firewall determines whether a difference between the second time and the first time is less than a threshold difference. If so, the firewall associates the second network packet with a potential security threat.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 24, 2020
    Inventors: Hien Thi Thai, Andrew Fu-Chung Teng, Pramod Nair, Hidde Beumer
  • Patent number: 9780964
    Abstract: A method is provided in one example and includes determining a bandwidth level associated with a link, which is provided between a first microwave transceiver and a second microwave transceiver. The link is part of a communication ring containing multiple Ethernet ring protection elements. The method also includes comparing the bandwidth level associated with the link to a threshold level. A fail-over can be triggered for a selected one of the plurality of Ethernet ring protection elements if the bandwidth is below the threshold level. In certain example embodiments, the first microwave transceiver and the second microwave transceiver can implement an adaptive modulation protocol on the link.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: October 3, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: Samer M. Salam, Jose A. Liste, Hidde Beumer