Patents by Inventor Bjorn Erik Rutget Jonsson

Bjorn Erik Rutget Jonsson 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).

  • User authentication method and apparatus
    Patent number: 5668876
    Abstract: Authorization for a user to use a service is provided by a modified pager which calculates a unique response code to a transmitted challenge code based on the challenge code, an input personal identification number, and an internal key. The response code is input to a simple terminal, such as a telephone and if the unique response code is acceptable, the user may access the desired service, such as cashless transactions or long distance phone service.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: September 16, 1997
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Johan Per Falk, Bjorn Erik Rutget Jonsson