Device and service for transmitting video image data and request signals device

摘要

The transmission device includes a transmitter (SEN) and a receiver (ENP) which are incorporated in a server (SER). A transmission request is received from a video telephone (TEL2) via the ISDN (NET). The transmitted video image data is coded using a coding unit (K), which comprises two coders (K1,K2) for coding still pictures and picture sequences. The coder is selected in dependence on the received request signal, using a microprocessor (CTRL). The video data are transmitted in real time to the video telephone via a switching connection.