Koder mit Wörtern variabler Länge, der zwei Tabellen benutzt

摘要

A variable length coder for converting a source digital code, which is provided from an image signal encoding apparatus using an inter mode or an intra mode compression, to a variable length code by using a first VLC table and a second VLC table, while gauging the amount of output data from the encoding apparatus with a quantization parameter ranging from 1 to 31, comprising: a first VLC unit for encoding the digital source code into the variable length code using the first table; a second VLC unit for encoding the digital source code into the variable length code using the second table; and a switch for selectively providing the source digital code to said first or said second VLC unit, depending on the inter or the intra mode compression and the magnitude of the quantization parameter. <IMAGE>