A video reproducing apparatus which prevents a degradation in the picture quality by utilizing difference codes which have been added as additional information in coding process based DCT coding. Each of the taken-in codes has its header analyzed by a header analyzer 11, is decoded in a decoder 12, inverse-quantized...http://www.google.com/patents/US5915043?utm_source=gb-gplus-sharePatent US5915043 - Image reproducing apparatus
