Patents by Inventor Ralf Tönjes

Ralf Tönjes 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).

  • Patent number: 8302148
    Abstract: To improve transmission of digital broadcast information, there is proposed a method of transmitting digital broadcast information from a main transmitter (12) to at least one repeater (14). There is generated a composite digital broadcast signal carrying first digital broadcast information according to a first digital broadcast specification (DVB-T) and second digital broadcast information according to a second digital broadcast specification (DVB-H). The composite digital broadcast is then broadcasted such that the second digital broadcast information (DVB-H) is sent in a transmission mode used for transmission of the first digital broadcast information (DVB-T).
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: October 30, 2012
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Jörg Huschke, Ralf Tönjes, Uwe Horn
  • Publication number: 20090252084
    Abstract: The present invention relates to a method of communicating a push-to data packet within a communications system, where the push-to packet originates from a push-to client participating in a push-to user group comprising at least two push-to clients. The method comprises receiving the push-to data packet from a push-to server and broadcasting the push-to data packet over a broadcast distribution network to broadcasting clients which are not part of the push-to user group. A communications interface arranged to communicate push-to data packets, originating from a push-to client participating in a push-to user group comprising at least two push-to clients, from a push-to server to a broadcast node arranged to broadcast the push-to data packets to broadcasting clients which are not part of the push-to user group is also disclosed.
    Type: Application
    Filed: July 18, 2005
    Publication date: October 8, 2009
    Inventors: Gabor Fodor, Ralf Tönjes
  • Patent number: 7558262
    Abstract: The invention relates to a method for performing a flexible multicast of multicast data to a multicast group within a telecommunication system wherein the multicast data is provided by a broadcast/multicast server and transferred to the users registered to the multicast group by means of channels. In the invention multi-channel multicast groups (B1,B2, . . . ) are provided. Each multi-channel multicast group offers at least one channel wherein a channel transports content. The availability and configuration of the multi-channel multicast group is announced to the users by means of an announcement multicast group (A). The user either initiates the changing to an announced multi channel multicast group or the user is forced by the operator to change in case the operator wants to control the allocation of resources.
    Type: Grant
    Filed: November 29, 2002
    Date of Patent: July 7, 2009
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Ralf Tönjes, Ralf Keller, Thorsten Lohmar, Frank Hundscheidt