Digital signal coding/decoding apparatus

Details Digital signal coding/decoding apparatus Digital signal coding/decoding apparatus

H - Electricity

03

M

H03M 7/40 (2006.01) H04N 7/26 (2006.01)

Patent

CA 2686449

A digital decoding apparatus and method for receiving and decoding a compression-coded digital signal received in predetermined units, comprises decoding the compressed digital signal in an arithmetic decoding unit. The received digital signal is coded in every predetermined units with updating a table of probability of occurrence which is assigned for each coding symbol. The arithmetic decoding unit initializes a decoding process when decoding of signal in the predetermined units is started. The initializing is performed based on information of initializing the table of probability of occurrence which is multiplexed on a header of data for the predetermined units and information of initializing a register value which shows the arithmetic decoding process.

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