发明授权
- 专利标题: Data compression method and apparatus
- 专利标题(中): 数据压缩方法和设备
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申请号: US744443申请日: 1991-08-13
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公开(公告)号: US5150119A公开(公告)日: 1992-09-22
- 发明人: Shigeru Yoshida , Yoshiyuki Okada , Yasuhiko Nakano , Hirotaka Chiba
- 申请人: Shigeru Yoshida , Yoshiyuki Okada , Yasuhiko Nakano , Hirotaka Chiba
- 申请人地址: JPX Kawasaki
- 专利权人: Fujitsu Limited
- 当前专利权人: Fujitsu Limited
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX2-213990 19900813; JPX2-281431 19901019; JPX2-281432 19901019; JPX2-281433 19901019
- 主分类号: G06T9/00
- IPC分类号: G06T9/00 ; H03M7/30
摘要:
In a data compression method based on an LZW coding procedure, a list which defines a sequence of tracing partial strings registered in a dictionary is modified so that a position of a first registered partial string among the registered partial strings in a tree structure of registered partial strings is interchanged with a position of a second registered partial string among the registered partial strings in a state where the first and second registered partial strings extend from an identical node of the tree structure.
公开/授权文献
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