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US 6,958,715 B2Granted
Variable length decoding system and method
AssigneeTexas Instruments Incorporated
InventorMinhua Zhou
Life of this patent
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Abstract
A method of decoding variable length codes converts a variable length code table into standard format decomposition tables from which a universal variable length decoder can decode. This allows the same universal variable length decoder to decode any variable length code. The memory required to store the standard format decomposition tables is minimized by the conversion process.
Claims4
A method of decoding variable length codes, comprising:
- (a) providing a translation of a variable length code table into a variable length decode control table and a variable length decode code table;
- (b) applying a universal decode function to an input bitstream, said input bitstream including sequences of codewords from said variable length code table, and said universal decode function interpreting said bitstream using said variable length decode control table to access said variable length decode code table to decode said codewords.
Dependencies are inferred from the claim text.