Variable length code decoder for video decompression operations

Details Variable length code decoder for video decompression operations Variable length code decoder for video decompression operations

H - Electricity

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H03M 7/40 (2006.01) G06F 17/14 (2006.01) G06T 9/00 (2006.01) G10L 19/02 (2006.01) H03M 7/42 (2006.01) H04N 5/44 (2006.01) H04N 5/60 (2006.01) H04N 7/26 (2006.01) H04N 7/30 (2006.01) H04N 7/50 (2006.01) H04N 7/52 (2006.01) G10L 19/00 (2006.01) H04N 5/21 (2006.01)

Patent

CA 2096584

A Variable Length Code Decoder for Video Decompression Operations Frank H. Liao Abstract of the Disclosure A decoder for compressed video signals comprises a central processing unit (CPU), a dynamic random access memory (DRAM) controller, a variable length code (VLC) decoder, a pixel filter and a video output unit. The microcoded CPU performs dequantization and inverse cosine transform using a pipelined data path, which includes both general purpose and special purpose hardware. In one embodiment, the VLC decoder is implemented as a table- driven state machine where the table contains both control information and decoded values.

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