ATM adaptation layer receiver for fixed bit rate video service

摘要

The present invention relates to an ATM adaptation layer for providing a fixed bit rate image service in an ATM network to an ATM (Asynchronous Transfer Mode: hereinafter referred to as ATM) service recommended in the broadband information transmission mode in the CCITT, A SAR header is searched and compensated by a SAR sublayer for a SAR-PDU having a fixed bit rate to be transmitted to an ATM network, and the convergence sublayer performs FEC decoding for a CS-PDU to obtain pure video information Video codec so that it can be used for video communication of fixed bit rate in ATM network. On the other hand, if the output connection is modified for connection with the audio codec, it is possible to accommodate a high-quality voice service having a fixed bit rate.