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Fakultät für Elektrotechnik und Informationstechnik

Nomination in the Competition "ZukunftErfinden 2015":

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Nomination in the category "Engineering";

C. Wietfeld, M. Sbeiti, S. Subik, A. Wolff, "ACCESS METHOD AND COMMUNICATION SYSTEM FOR ACCESSING A PROTECTED COMMUNICATION SERVICE", WO/2013/056737, Oktober 2011

Abstract: The present invention relates to an access method for accessing a protected communication service (4) via a public communication network (3) by means of a secure communication network (2), whereby the secure communication network (2) is based on user groups (21), comprising the steps of defining an access group having access to the communication service (4) based on the user groups (21) of the secure communication network (2), generating a group key for all members of the access group, providing the group key to a member of the access group via the secure communication network (2), and accessing the communication service (4) via the public communication network (3) using the group key. The present invention further relates to a communication system (1) comprising a secure communication network (2) based on user groups (21), a public communication network (3), a protected communication service (4), and an access server (5) for managing access rights to the communication service (4), whereby the communication system (1) is adapted to execute the above method.

Nomination in the category "Progress in Transfer":

Christian Wietfeld, Andreas Lewandowski, Volker Koester, "Approach warning system and method for detecting the approach of moving objects", US9035759 B2 (DE102010022282A1, EP2577639A1, US20130176144, WO2011151291A1), Mai 2010.

Abstract: An approach warning system includes at least one marking module and a warning module. The at least one marking module comprises a marking module transmission unit configured to emit electromagnetic signals, and a motion detector configured to detect a motion. The at least one marking module is configured to emit presence signals as the electromagnetic signals when a motion is detected. The warning module comprises a reception unit configured to receive the electromagnetic signals emitted by the at least one marking module, and an output device configured to emit an approach warning. The warning module is configured to emit the approach warning via the output device dependent on a reception of the presence signals emitted by the at least one marking module.