Stammnitz, P.P.StammnitzBottcher, K.K.BottcherGruneberg, K.K.GrunebergHofker, U.U.HofkerKlein, H.H.Klein2022-03-082022-03-081992https://publica.fraunhofer.de/handle/publica/320614This paper describes the hardware realization of a data rate reduction codec used for increasing the playing time of a digital video cassette recorder. The experimental codec is designed for reduction factors between 2 and 5. Algorithms utilized for data rate reduction are DCT, adaptive quantization and variable length encoding. Interframe editing and shuttle mode are supported by a special codec architecture.endata compressiondiscrete cosine transformshigh definition televisionimage codingvideo tape recordersinterframe editingdigital HDTV recordingdata rate reduction codecvideo cassette recorderdctadaptive quantizationvariable length encodingshuttle modecodec architecture621conference paper