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Dive into the research topics where Rolf Hagen is active.

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Featured researches published by Rolf Hagen.


Computer Communications | 1982

Interworking of text communications services and networks

Rolf Hagen

The acceptance of new text communication services depends, in part, on whether interworking is possible with other existing or future services. The features of these services are basically determined by their communications protocols. Interworking is to be implemented by automatic facilities located in, or at the boundaries of, the telecommunications networks supporting the services. Aspects of these facilities, known as converters, include centralized versus decentralized siting and implementation, and the mode of operation. In addition, another factor influencing the functions carried out by the converters is the type of interworking. The interworking between the teletex and telex services is discussed as an example.


Archive | 1983

Method and circuit arrangement for transmitting communication signals between switching centers of first and second switching networks operating with different transmission procedures

Rolf Hagen; Peter Weidner


Archive | 1980

CIRCUIT ARRANGEMENT FOR TRANSMITTING DIGITAL SIGNALS BETWEEN TRANSMITTER/ RECEIVER DEVICES USING DIFFERENT DATA TRANSMISSION PROCEDURES AND DIFFERENT DATA FORMATS

Ola Bergmann; Rolf Hagen; Jürgen Ing. Grad. Harenberg; Herbert Steiner


Archive | 1980

Switch-through unit for bit groups within a program controlled, electronic data switching system

Rainer Gaiser; Rolf Hagen; Bernhard Schaffer


Archive | 1980

Circuit arrangement and method for multi-address switching operations

Rolf Hagen; Diethard Linck; Joerg Pappenberger


Archive | 1980

Conversion circuit arrangement and method for switching digital encoded signals

Ola Bergman; Rolf Hagen; Juergen Harenberg; Herbert Steiner


Archive | 1980

Circuit arrangement for transmitting digital signals between transmitting and/or receiving devices operating with different data transmission procedures and different data formats

Rolf Hagen; Ola Bergman; Juergen Harenberg; Herbert Steiner


Archive | 1983

VERFAHREN UND SCHALTUNGSANORDNUNG ZUM UEBERTRAGEN VON NACHRICHTENSIGNALEN ZWISCHEN MIT UNTERSCHIEDLICHEN UEBERTRAGUNGSPROZEDUREN ARBEITENDEN VERMITTLUNGSSTELLEN EINES ERSTEN VERMITTLUNGSNETZES UND EINES ZWEITEN VERMITTLUNGSNETZES

Rolf Hagen; Peter Weidner


Archive | 1980

Circuit arrangement for the transmission of digital signals between transmitting and receiving equipment operating with different data transmission modes and different data formats

Rolf Hagen; Ola Bergman; Jürgen Ing. Grad. Harenberg; Herbert Steiner


Archive | 1983

Method and circuit arrangement for the transmission of information signals between exchanges of a first and second switching network utilizing different transmission procedures

Rolf Hagen; Peter Weidner

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