| 摘要 |
<p>An apparatus for parallel decoding of encoded image signals supplied in the form of an encoded bit stream, each of the image frames being decomposed into a predetermined number of variable length encoded blocks in the encoded bit stream, comprises: a circuit (10) having a single input terminal and N output terminals for receiving the encoded bit stream through the single input terminal, and demultiplexing the blocks in the encoded bit stream over the N output terminals; N parallel processing paths, each including a buffer memory (31A,31B,...,31N) respectively for performing the decoding operation including the variable length decoding on the blocks provided in its buffer memory; a provisional buffer memory circuit (20), disposed between the N output terminals and the N parallel processing paths, for temporarily storing the blocks to be applied to the respective buffer memory when the respective buffer memory is in a buffer full state, and providing the blocks to the respective buffer memory as the respective buffer memory has been released from the buffer full state; and a circuit (40) for multiplexing the output signals from the N parallel processing paths into a single data stream. The parallel decoding apparatus of the present invention can perform the decoding operation optimally with N buffer memories having an overall storage capacity far less than the prior art parallel decoding apparatus. <IMAGE></p> |
