Patents by Inventor Gunnar Larson

Gunnar Larson 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 arrangement for automatically controlling access between a computer and a communication network
    Patent number: 8341735
    Abstract: The present invention relates to a device and method for increasing the security for a computer or server adapted for communication with a communication network, for example the Internet. The method for automatically controlling access between the computer and the communication network arranges the access to be dependent on user activity. The user activity is determined by monitoring signal activity between the computer and at least one input/output device adapted for communication with the computer, and the user activity being defined as detection of signal activity between the computer and the input/output device. Access to the communication network is only allowed if user activity is occurring or has occurred in a predetermined time period.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: December 25, 2012
    Assignee: AB Snalle
    Inventors: Gunnar Larson, Peter Fuks, Jorgen Appelgren
  • Method and arrangement for automatically controlling access between a computer and a communication network
    Publication number: 20060117384
    Abstract: The present invention relates to a device and method for increasing the security for a computer or server adapted for communication with a communication network, for example the Internet. The method for automatically controlling access between the computer and the communication network arranges the access to be dependent on user activity. The user activity is determined by monitoring signal activity between the computer and at least one input/output device adapted for communication with the computer, and the user activity being defined as detection of signal activity between the computer and the input/output device. Access to the communication network is only allowed if user activity is occurring or has occurred in a predetermined time period.
    Type: Application
    Filed: April 16, 2003
    Publication date: June 1, 2006
    Inventors: Gunnar Larson, Peter Fuks, Jorgen Appelgren
  • Inductive heating unit
    Patent number: 4969158
    Abstract: An inductive heating unit for a magnetically permeable ladle containing molten steel has a cylindrical permeable wall for receiving the ladle and on which is wound an induction coil with an outer cylindrical permeable wall surrounding and enclosing the coil. The coil is wound from a conductor formed by a plurality of superposed flat metal strips which are insulated from each other. The outer wall is formed with a vertical channel in which a power lead for the coil is positioned.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: November 6, 1990
    Assignee: ASEA Brown Boveri
    Inventors: Hans-Gunnar Larson, Gote Tallback, Bjorn Widell