Patent ID: 7664182
Filing Date: 2010-02-16
Classification: H03M,H04L,H04N

Abstract:
1. A decoding device that decodes a moving picture on a block basis, said decoding device comprising: a demultiplexer configured to receive a picture coded signal and to demultiplex the picture coded signal into a header stream and a frame stream; a header information decoding unit configured to receive the header stream and to perform non-arithmetic decoding on the header stream selectively with either a fixed length code or a variable length code according to a syntax structure signal so as to generate a header code value signal; a header information generating unit configured to receive the header code value signal and to generate a header parameter corresponding to the header code value signal, the header parameter and the header code value signal being common to a plurality of blocks of moving picture signals; an arithmetic decoding unit configured to perform only arithmetic decoding on the frame stream so as to construct a frame code value signal; and a frame decoding unit configured to decode, on the block basis, the frame code value signal with reference to the header parameter so as to output a decoded moving picture signal, wherein the header information decoding unit includes: