A data compression system (200) employs an encoder (210) optimized to decorrelate and make independent from the original signal (202), the quantization noise produced during signal compression by a quantizer (214). Because the quantization noise produced during signal compression is made...http://www.google.de/patents/US5802481?utm_source=gb-gplus-sharePatent US5802481 - Adaptive filtering for use with data compression and signal reconstruction 
