Encoder and decoder

摘要

An encoder for encoding data to be transmitted into a transmission path, characterized in that the encoder comprises:
means for converting digital data to a variable-length code;
means for partitioning the variable-length code by a fixed length, thereby creating a data unit of fixed length for transmission; and
means for inserting a dummy data into a remaining part of the data unit containing an end of the variable-length code, when the variable-length code for a symbol extends over a boundary of the data unit, wherein the dummy data is discarded during a decoding process.