Coding device, decoding device, coding method, decoding method

Coding device, decoding device, coding method, decoding method

  • CN 1,848,692 B
  • Filed: 04/14/2006
  • Issued: 07/18/2012
  • Est. Priority Date: 04/14/2005
  • Status: Active Grant
First Claim
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1. encoding device comprises:

  • The code-element string searcher is used for the state that in the predetermined search ranges of the data buffer that is used to preserve input data search and sub-symbols string as the coded object of said input data are complementary;

    The matching length code device;

    Be used for according to internal state by the preservation of internal state save set;

    In allocation process, give matching length with the matching length assignment of code;

    Wherein this matching length is represented as the searching disposal result and the length of said sub-symbols string in the matching status that detected by said code-element string searcher, then according to said matching length, upgrades the said internal state of being preserved by said internal state save set;

    AndThe code-element string code device;

    Be used for position based on the said sub-symbols string of the matching status that detects as the searching disposal result and by said code-element string searcher;

    And, and said sub-symbols string is encoded based on the said matching length code that distributes by said matching length code device.

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