Patent ID: 6785424
Filing Date: 2004-08-31
Classification: H04N

Abstract:
A decoding method comprising the steps of:receiving an encoded code sequence and analyzing an encoded command included in the encoded code sequence, wherein the encoded command is one byte code and comprises high-order bits indicating combination of a plurality of encoding modes, mid-order bits indicating byte lengths of one encoding mode and low-order bits indicating byte lengths of another encoding mode: determining, based upon the high-order bits of the encoded command, to which combination of repetition, copying and raw-data substitution the code sequence applies; decoding each encoded command of the encoded code sequence, in accordance with a result determined in said determining step, by a combination of at least two conversion operations from among repetition, copying and raw-data substitution and by the byte lengths specified by the mid-order bits and the low-order bits; and outputting the decoded data obtained in said decoding step.