发明授权
US06778103B2 Encoding and decoding apparatus using context 有权
使用上下文的编码和解码设备

  • 专利标题: Encoding and decoding apparatus using context
  • 专利标题(中): 使用上下文的编码和解码设备
  • 申请号: US10226292
    申请日: 2002-08-23
  • 公开(公告)号: US06778103B2
    公开(公告)日: 2004-08-17
  • 发明人: Noriko Satoh
  • 申请人: Noriko Satoh
  • 优先权: JP10-229094 19980813; JP11-050500 19990226
  • 主分类号: H03M734
  • IPC分类号: H03M734
Encoding and decoding apparatus using context
摘要:
A symbol string detection unit detects the second symbol string matching the first symbol string having a predetermined length n from input character strings. A matching length detection unit detects a matching length k between the third symbol string following the first symbol string and the fourth symbol string following the second symbol string. A coding unit codes an input symbol string based on the symbol string detected by the symbol string detection unit and the matching length k detected by the matching length detection unit.
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