| 摘要 |
A variable length coder for converting fixed bit length data to variable bit length data has a codetable for storing codewords, which codewords define a bitsequence and length of the bitsequence. A bitmap indicates the presence of codewords in the codetable. The bitmap is addressed by one or more bits from the fixed bit length. An addresser converts one or more bits from the fixed bit length data to a codetable address, which codetable address is used to index the codetable.
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