DIGITAL SIGNAL CODING/DECODING APPARATUS

摘要

A digital decoding apparatus and method for receiving a compression coded digital signal in predetermined transmission unites for decoding are taught. A probability of occurrence based on information multiplexed into data constituting said transmission unit is initialized when decoding of the transmission unit is started. A binarization rule based on a type of decoded data is generated. The probability of occurrence of symbol generated by the binarization rule is provided. Arithmetic decoding based on the probability of occurrence thus generated is executed.