Patents by Inventor Jan C. G. Hultkrantz

Jan C. G. Hultkrantz 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 handling a multi-media call setup request
    Patent number: 8737968
    Abstract: A service node in a telecommunication network is arranged to receive a Multi-Media video call setup for a terminal to be called. The called terminal is called by the service node according to either a video or a voice call setup, depending on a current allowed answer mode of the called terminal. Responding to the call setup will, depending on either answering or rejecting the call setup by the called terminal, and depending whether the call setup is for a voice or a video call, be handled by the service node according to a predetermined method. When a call setup is answered by the called terminal, the service node further supports a method of toggling between a video call and a voice call at the called terminal.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: May 27, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jan C. G. Hultkrantz, Jan Lidin