关键词: 数字电视, 数字解码器, 中值滤波器

Abstract: The critical technique of digital video decoder in design is discussed, and accomplished with a specific decoder chip presented is adecoder which is asynchronous to following disposal with strong independence compared to common decoders, as is equal to frame synchronous processing.So the decoder has strong adaptive capacity in qualities of various video sources and hassome advantages in chroma disposal.

Key words: digital TV, digital decoder, media filter