Patents by Inventor Carl-Magnus Stenberg

Carl-Magnus Stenberg 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 system for roaming of a mobile communications unit
    Patent number: 9473927
    Abstract: A method for use when a mobile communication device roams between a home network and foreign networks, which device includes a SIM card using an IMSI, includes the steps of storing on the SIM card a first IMSI for network identification; upon receipt of a location update message indicating that the mobile device has moved to a first visited network, firstly causing the HLR to send an instruction message to the mobile device to change, to a second IMSI, the IMSI used for network identification; secondly causing the mobile device to use the second IMSI for network identification and saving the first IMSI; and then causing the mobile device to perform a device network refresh; and upon roaming back to the home network, causing the mobile device to change the IMSI used for network identification back to the first IMSI and then to update its network status.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: October 18, 2016
    Assignee: GLOBETOUCH AB
    Inventors: Carl-Magnus Stenberg, Fredrik Salqvist
  • METHOD AND SYSTEM FOR ROAMING OF A MOBILE COMMUNICATIONS UNIT
    Publication number: 20140220968
    Abstract: A method for use when a mobile communication device roams between a home network and foreign networks, which device includes a SIM card using an IMSI, includes the steps of storing on the SIM card a first IMSI for network identification; upon receipt of a location update message indicating that the mobile device has moved to a first visited network, firstly causing the HLR to send an instruction message to the mobile device to change, to a second IMSI, the IMSI used for network identification; secondly causing the mobile device to use the second IMSI for network identification and saving the first IMSI; and then causing the mobile device to perform a device network refresh; and upon roaming back to the home network, causing the mobile device to change the IMSI used for network identification back to the first IMSI and then to update its network status.
    Type: Application
    Filed: June 30, 2011
    Publication date: August 7, 2014
    Applicant: FOGG MOBILE AB
    Inventors: Carl-Magnus Stenberg, Fredrik Salqvist