Grundig Multimedia B.v.

Thorsten Herfet

Hans-Juergen Busch

Werner Bauer-Schmidt

The present invention relates to a method and a system for controlling and/or exchanging data for multimedia appliances and an appliance suitable therefor According to prior art, methods and systems for controlling and exchanging data for multimedial appliances have the disadvantage that said methods, systems and appliances are very simple with regard to the requirements and the possibilities at hand and involve considerable hardware requirements. The invention is based upon the fact that each appliance which is integrated into the system sends a message at regular intervals and by means of the bus as soon as said appliance has been activated The type of the appliance can be detected by means of said message which also reveals that the appliance is switched on, i.e. active. All the remaining active appliances in the system evaluate said messages and send such messages themselves as long as said appliances are active. The active appliances can control other active appliances or exchange data with other active appliances if required because each active appliance is thus provided with information on the other active appliances in the system.

Method and system for controlling and exchanging data for multimedia appliances and an appliance suitable therefor

The invention relates to a method for transmitting time-critical data packets in digital wireless transmission systems. Time-critical data packets are used e.g., in the transmission of MPEG-coded signals, since information about the temporal positions of the data packets in relation to each other must be known in the MPEG decoder. The aim of the invention is to enable data packets of this type to be transmitted via a propagation time-constrained transmission link. To this end, time information relating to the temporal position of a particular data packet is tagged onto said data packet at the sender end. This time information is then used at the receiver end to re-establish the original temporal positions of the individual data packets in relation to each other.

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Altdorf, Germany

Thorsten Herfet