Patents by Inventor Michael Ranjel

Michael Ranjel 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).

  • Combining narrowband applications with broadband transport
    Patent number: 7054305
    Abstract: ATM is used as a transport and switching mechanism in a hybrid STM/ATM network while the signaling remains normal narrowband signaling. The narrowband signaling is transported on permanent paths over ATM connections, and the narrowband speech channels are transported on ATM and switched on a “Per call basis” (on-demand) through an ATM switch. A translator formats a call-setup-related signaling message into ATM cells so that the signaling message can be routed through an ATM switch to a circuit switched (STM) node. The circuit switched node (PSTN/ISDN) sets up a physical connection for the call and generates a further signaling message therefor that relates to the physical connection. The ATM switch routes an ATM cell-formatted version of the further signaling message to another ATM switch over an ATM physical interface. Thus, the ATM switch switches both narrowband traffic and signaling for the call over the ATM physical interface.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: May 30, 2006
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Ros-Marie Furtenback, Magnus Hallenstål, Jan Alvar Gjärdman, Tomas Nylander, Michael Ranjel
  • Narrowband applications using ATM switching and transport
    Patent number: 6775266
    Abstract: ATM is used as a transport and switching mechanism in a hybrid STM/ATM network (20), while the signaling remains normal narrowband signaling. The narrowband signaling is transported on permanent paths over ATM connections, and the narrowband speech channels are transported on ATM and switched on a “per call basis” (on-demand) through an ATM switch. The hybrid STM/ATM network has an access node (22) which services narrowband terminals and which generates a signaling message in connection with call setup. A translator (50) formats the first signaling message into ATM cells so that the first signaling message can be routed through an ATM switch (40) to a circuit switched (STM) node (30). The circuit switched node (PSTN/ISDN) sets up a physical connection for the call and generates a further signaling message for the call, the further signaling message pertaining to the physical connection.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: August 10, 2004
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Ros-Marie Furtenback, Magnus Hallenstål, Jan Alvar Gjärdman, Tomas Nylander, Michael Ranjel
  • Combining narrowband applications with broadband transport
    Publication number: 20020051443
    Abstract: ATM is used as a transport and switching mechanism in a hybrid STM/ATM network (20), while the signaling remains normal narrowband signaling. The narrowband signaling is transported on permanent paths over ATM connections, and the narrowband speech channels are transported on ATM and switched on a “per call basis” (on-demand) through an ATM switch. The hybrid STM/ATM network has an access node (22) which services narrowband terminals and which generates a signaling message in connection with call setup. A translator (50) formats the first signaling message into ATM cells so that the first signaling message can be routed through an ATM switch (40) to a circuit switched (STM) node (30). The circuit switched node (PSTN/ISDN) sets up a physical connection for the call and generates a further signaling message for the call, the further signaling message pertaining to the physical connection.
    Type: Application
    Filed: May 25, 2001
    Publication date: May 2, 2002
    Inventors: Ros-Marie Furtenback, Magnus Hallenstal, Jan Alvar Gjardman, Tomas Nylander, Michael Ranjel