发明申请
US20060145897A1 Variable-length encoding method, variable-length decoding method, storage medium, variable-length encoding device, variable-length decoding device, and bit stream 有权
可变长度编码方法,可变长度解码方法,存储介质,可变长度编码装置,可变长度解码装置,以及比特流

  • 专利标题: Variable-length encoding method, variable-length decoding method, storage medium, variable-length encoding device, variable-length decoding device, and bit stream
  • 专利标题(中): 可变长度编码方法,可变长度解码方法,存储介质,可变长度编码装置,可变长度解码装置,以及比特流
  • 申请号: US11368437
    申请日: 2006-03-07
  • 公开(公告)号: US20060145897A1
    公开(公告)日: 2006-07-06
  • 发明人: Shinya KadonoYoshinori MatsuiSatoshi Kondo
  • 申请人: Shinya KadonoYoshinori MatsuiSatoshi Kondo
  • 优先权: JPJP2002-088345 20020327
  • 主分类号: H03M7/00
  • IPC分类号: H03M7/00
Variable-length encoding method, variable-length decoding method, storage medium, variable-length encoding device, variable-length decoding device, and bit stream
摘要:
The present invention correctly decodes data encoded with a variable-length encoding method that improves the compression ratio. The variable-length encoding method encodes a unit data composed of a plurality of sub-data while referencing a parameter table, and includes: an initialization step in which the parameter table is set to initial values; a parameter table information encoding step in which information related to the initialized parameter table is encoded; a parameter obtaining step in which encoding parameters to be used in the encoding of sub-data are obtained from the parameter table; a sub-data encoding step in which variable-length encoding of the sub-data is performed with reference to the obtained encoding parameters; and an encoded information placement step in which the encoded information is placed in a position in which the information can be obtained before the encoded unit data.
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