| 摘要 |
A data compression/decompression system employs two stages of data compression. Information and/or character data is first formatted into M-bit width digital data characters for input to the first stage of the data compression system which comprises an expanding run length encoder having N-bit width output character where N > M and the number of M-bit width characters is greater than the number of N-bit width characters. The output of the expanding run length encoder is applied directly to a compatible adaptive string matching second stage data compression encoder of the type which is not degraded or affected by the input.
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