Hardware data compressor using dynamic hash algorithm based on input block type
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United States of America Patent
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Nov 29, 2016
Grant Date -
Nov 17, 2016
app pub date -
Oct 14, 2015
filing date -
May 11, 2015
priority date (Note) -
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Abstract
A hardware data compressor that compresses an input block of characters by replacing strings of characters in the input block with back pointers to matching strings earlier in the input block. A hash table is used in searching for the matching strings in the input block. A plurality of hash index generators each employs a different hashing algorithm on an initial portion of the strings of characters to be replaced to generate a respective index. The hardware data compressor also includes an indication of a type of the input block of characters. A selector selects the index generated by of one of the plurality hash index generators to index into the hash table based on the type of the input block.
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