Sibylle Schaller

Learn More
Resource management offers Quality-of-Service reliability for timecritical continuous-media applications. Currently existing resource management systems provide only means to reserve resources starting with the reservation attempt and lasting for an unspecified duration. However, for several applications such as video conferencing the ability to reserve the(More)
As part of its work on the Heidelberg Transport System (HeiTS) for multimedia communication, the IBM European Networking Center (ENC) has implemented the Experimental Internet Stream Protocol, Version 2 (ST-II). ST-II is a connection-oriented internetworking protocol for multiple-destination communication of real-time data such as digital audio and video.(More)
Mobile devices offer the opportunity to play games nearly everywhere. Moreover, networked games allow individual players to interact with other people and to participate in a larger gaming world, which also provides for new business opportunities. Hence, we currently see an increased interest from game developers, providers and players in mobile games. In(More)
Die Zielstellung dieser Arbeit ist die Erweiterung der bisherigen Instrumentennavigation um eine Funktion der Kollisionswarnung mit Hilfe einer zusätzlichen Abstandsanzeige und einer Warnsystematik. Das Kollisionswarnsystem (DCS) ist eine Erweiterung eines optoelektrischen Navigationssystems (NPU, Fa. Karl Storz, Tuttlingen). Die Messungen zur(More)
Die Herz-Lungen-Maschine (HLM) wurde seit ihrer Einführung stetig weiterentwickelt und modifiziert. Trotz aller technischen Neuerungen und Sicherungseinrichtungen an einer modernen HLM treten während der Perfusion Probleme auf, die ein sofortiges und kompetentes Handeln des Kardiotechnikers und des Chirurgen erfordern. Kontinuierliche Kommunikation sowie(More)
In the emerging era of 3rd generation mobile communication networks, it is expected that operator differentiation in the market will highly depend on the advanced provision of value-added services, including the successful implementation of the Virtual Home Environment (VHE) concept. In this paper, after discussing some issues critical to VHE realization,(More)
Mobile devices offer the opportunity to play games nearly everywhere. Moreover, networked games allow individual players to interact with other people and to participate in a larger gaming world, which also provides for new business opportunities. Hence, we currently see an increased interest from game developers, providers and players in mobile games.(More)
BACKGROUND The effective register accuracy in an situs issues a challenge to the employment of instrument navigation in the ENT Surgery. The idea of the initially determined process Dynamic Registration Supply (DRS) is to improve the register accuracy by the automatic, and interoperability of the register. MATERIALS AND METHODS The aim was to determine(More)
BACKGROUND It is to be expected that, microsurgical operations in ENT must be partially performed without direct vision, e. g. without the possibility of controlling the preparation progress. This study provides a clinical example of how instrument navigation may be used in a safe and reasonable manner to the benefit of treatment quality. It is assumed that(More)
IthACI has been a European project of the ACTS framework concentrating on fast layer 2 forwarding methods for IP traffic based on labeled flow mechanisms. The approach is also known as IP Switching and is considered promising for enhancing IP performance. Several flavors of IP Switching have been proposed by various vendors (e.g. IP Switching by Ipsilon,(More)