This paper proposes a new architecture for a singlechip MPEG-2 video encoder with scalability for HDTV and demonstrates its exibility and usefulness. The architecture based on three-layer cooperation provides exible data-transfer that improves the encoder from the standpoints of versatility, scalability, and video quality. The LSI was successfully fabricated in the 0.25-m four-metal CMOS process. Its small size and its low power consumption make it ideal for a wide range of applications, such as DVD recorders, PC-card encoders and HDTV encoders.
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