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Data compression/decompression apparatus and method

  • US 8,004,429 B2
  • Filed: 09/02/2008
  • Issued: 08/23/2011
  • Est. Priority Date: 09/07/2007
  • Status: Expired due to Fees
First Claim
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1. A data compression/decompression apparatus, the apparatus comprising:

  • a compressor for calculating costs of domain blocks to a range block through forward searching in a search range, for selecting the domain block having the lowest cost to the range block as a reference domain block through backward searching, for generating distance and difference information of the reference domain block, and for encoding the distance and difference information into compressed data of the range block; and

    a decompressor for finding the reference domain block on the basis of the distance and for decoding the compressed data into original data of the range block with reference to the difference information.

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