Coding device with termination of decoder operation

H - Electricity – 03 – M

Patent

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Details

H03M 7/00 (2006.01) H03M 7/40 (2006.01) H04N 1/32 (2006.01) H04N 1/333 (2006.01) H04N 1/417 (2006.01)

Patent

CA 2128852

This invention relates to a coding system and the coding method in encoding information source symbols of an image. When the total number of original information source symbols cannot be known at the decoding site just from the encoded symbols, it is an object to finish the decoding process correctly and decode the symbols equal to the number of original information source symbols. Accordingly, the coding system of the present invention includes an encoder for encoding information source symbols and a decoder for decoding information source symbols, wherein a total number of the information source symbols for encoding and decoding is not known before coding begins. The encoder of the present invention provides a notify unit for transmitting the number of information source units counted by an encoder information source unit memory to the decoder after encoding has started. The decoder of the present invention includes a decode terminator to receive the number of information source units counted by the notify unit for comparing the number of information source units counted by the decoder and the number of information source units notified by the notify unit and terminating the decoding according to a result of the comparison.

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