DECODER WITH CONTROLLING MEANS

摘要

an encoder (10) which encodes digital data by Variable Length Transform; a buffer (20) which transmits data from the encoder (10) at a constant speed; a subtracter (33) which subtracts the write clock signal (WR CLOCK) and the read clock signal (RD CLOCK) applied to the buffer (20); a buffer occupation detector (3400) which detects the amount of data occupation of the buffer (20); a quantization parameter transmitter (3401) which prevents the overflow and the under flow of the buffer (20) by controlling the amount of information generated by feedback of quantization parameter (QP1 - QPN) to the encoder (10).