Koninklijke Kpn N.v.

Koninklijke Ptt Nederland N.v.

Frederik Harm Klok

Arian Koster

Mark Johannes Dirksen

Ronald Johannes Mies

Mark Johannes Gerardus Dirksen

The invention relates to a communication system (100) in which information (AV) from a server (101) is transmitted in one direction via a first communication path to a user terminal (102), such as a PC. In response to said information, the user can transmit selection information (I), such as control commands, in the form of data packets via a second communication path. According to the invention the data packets, for example ATM cells, are transmitted in the second communication path over a non-packet switching network (107), such as a telephony network. The invention further provides a device (108; 200) for receiving and routing data packets from a non-packet switching network (107), as well as a method for implementing telecommunication services in which use is made of a communication system (100; 100') of the above-mentioned kind.

Communication system for interactive services with a packet switching

Installation and method for freezing audiovisual data streams, which installation comprises a video freeze control (2) which in equipped to receive a freeze command signal (FR) to be generated by a user and to detect a predetermined marker in a videosignal read from a memory (1), and, after receipt of the freeze command signal and detection of the marker, to supply a video control signal (VSC) for a video switch (4) and a video stop signal (VS) to interrupt reading of the video signal (VID), which video switch comprises a first input, to which the video signal (VID) read out is fed, and a second input, which is connected to a video stuffing generator which generates a video stuffing signal (VIDSTUFF), wherein the video switch (4) connects its output to the second input if this receives the video control signal (VSC) and otherwise connects its output to the first input; at the point in time when reading of the video signal is interrupted, reading of an associated audio signal (AUD), if applicable, is also interrupted.

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Rijswijk, Netherlands

Frederik Harm Klok