Konrad Froitzheim

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Multimedia streams are difficult to transmit in full quality and real-time due to their size and constraints imposed by their timely presentation, Especially in slow channels with variable throughput-such as typical Internet connections-media streaming is extremely hard, We introduce a new iterative method for the transmission of media streams. The idea is(More)
The Abstract Personal Communications Manager (APCM) is an Application programmers Interface (API) for telecommunications, providing simple and powerful interaction between communication applications and protocol software for circuit switched connections and transmission of voice and data. A few generic service primitives are developed through abstraction of(More)
Threads in reactive applications need to service a multitude of events from different sources such as device drivers, communication channels or cooperating threads. While notification about these events can conceptually be understood as a form of "synchronization", most operating systems (including Linux) do not provide a unified abstraction. This paper(More)
We introduce an original scheme that turns the World Wide Web (WWW) into a social place. Our vicinity-based approach is to show the Web's user space to the people surfing on the WWW. Being aware of other Web surfers, people browsing the Web may invoke synchronous communication by a single mouse-click – surfing the Web turns from a lonely affair into a joint(More)