Inverse quantizer

DETAILED DESCRIPTION It is an object of the present invention to provide an inverse quantizing device which has a simple structure utilizing memories, and thereby great reductions in manufacturing costs can be achieved.
It is another object of the present invention to provide an inverse quantizing device which enables real time processing of input data and easy control therefor.
In order to achieve the above objects, the inverse quantizing device according to the present invention comprises: a plurality of memories for receiving input quantized coefficients and quantization levels as their address data and storing resultant data of inverse quantization in groups; and control means for discriminating the group of the input data to be inverse-quantized in accordance with an input block-type and block-strobe signals and providing a selection control signal for selecting one of said plurality of memories which stores the resultant data of the discriminated group; whereby the resultant data stored at an address of the selected memory which is assigned by the input quantized coefficients and the quantization levels is provided.