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Arithmetic decoding apparatus and method

  • US 7,304,590 B2
  • Filed: 01/24/2006
  • Issued: 12/04/2007
  • Est. Priority Date: 04/04/2005
  • Status: Expired due to Fees
First Claim
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1. An arithmetic decoding apparatus comprising:

  • an arithmetic decoding unit which determines a range of a most probable symbol and a range of a least probable symbol required to decode a current symbol, comparing a current offset and the range of the most probable symbol required to decode the current symbol, and determines and outputs a value of the current symbol; and

    a predicted arithmetic decoding unit which determines a range of a most probable symbol and a range of a least probable symbol required to decode a next symbol using a prediction that the current symbol is the most probable symbol, compares a next offset and the range of the most probable symbol required to decode the next symbol, and determines and outputs a value of the next symbol.

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