WO2007050018A8 - Method and system for compressing data - Google Patents
Method and system for compressing dataInfo
- Publication number
- WO2007050018A8 WO2007050018A8 PCT/SE2006/001198 SE2006001198W WO2007050018A8 WO 2007050018 A8 WO2007050018 A8 WO 2007050018A8 SE 2006001198 W SE2006001198 W SE 2006001198W WO 2007050018 A8 WO2007050018 A8 WO 2007050018A8
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elements
- sequence
- subsequence
- symbols
- compressing data
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000013144 data compression Methods 0.000 abstract 1
- 230000001131 transforming effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3084—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction using adaptive string matching, e.g. the Lempel-Ziv method
- H03M7/3086—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction using adaptive string matching, e.g. the Lempel-Ziv method employing a sliding window, e.g. LZ77
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/3084—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction using adaptive string matching, e.g. the Lempel-Ziv method
- H03M7/3088—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction using adaptive string matching, e.g. the Lempel-Ziv method employing the use of a dictionary, e.g. LZ78
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
- H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
The invention concerns a novel method for lossless data compression of a sequence of elements. The method comprises the steps of transforming the original sequence of data elements into a new sequence of symbols representing one of a literal element, a backward reference to a previously occurring subsequence of elements, or a table reference to a subsequence in one or more tables of frequently occurring subsequences of elements, and encoding the new sequence of symbols into a uniquely decodeable bit stream for compressing the original sequence.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06799795A EP1941617A4 (en) | 2005-10-24 | 2006-10-23 | Method and system for compressing data |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0502351-0 | 2005-10-24 | ||
SE0502351A SE530081C2 (en) | 2005-10-24 | 2005-10-24 | Method and system for data compression |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007050018A1 WO2007050018A1 (en) | 2007-05-03 |
WO2007050018A8 true WO2007050018A8 (en) | 2007-10-04 |
Family
ID=37968054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2006/001198 WO2007050018A1 (en) | 2005-10-24 | 2006-10-23 | Method and system for compressing data |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1941617A4 (en) |
SE (1) | SE530081C2 (en) |
WO (1) | WO2007050018A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8983388B2 (en) | 2008-09-30 | 2015-03-17 | Google Technology Holdings LLC | Method and apparatus to facilitate preventing interference as between base stations sharing carrier resources |
US8996018B2 (en) | 2008-10-30 | 2015-03-31 | Google Technology Holdings LLC | Method and apparatus to facilitate avoiding control signaling conflicts when using shared wireless carrier resources |
US8165597B2 (en) | 2009-03-25 | 2012-04-24 | Motorola Mobility, Inc. | Method and apparatus to facilitate partitioning use of wireless communication resources amongst base stations |
EP2712089A1 (en) * | 2012-09-20 | 2014-03-26 | Alcatel-Lucent | Method for compressing texts and associated equipment |
US11741121B2 (en) | 2019-11-22 | 2023-08-29 | Takashi Suzuki | Computerized data compression and analysis using potentially non-adjacent pairs |
US10387377B2 (en) | 2017-05-19 | 2019-08-20 | Takashi Suzuki | Computerized methods of data compression and analysis |
CN113868206A (en) * | 2021-10-08 | 2021-12-31 | 八十一赞科技发展(重庆)有限公司 | Data compression method, decompression method, device and storage medium |
CN116665836B (en) * | 2023-07-26 | 2023-10-27 | 国仪量子(合肥)技术有限公司 | Editing and storing method, reading and playing method and electronic equipment for sequence data |
CN118018032B (en) * | 2024-04-09 | 2024-06-14 | 西安西驰信息技术有限公司 | Remote control data transmission method of intelligent switch cabinet |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4730348A (en) * | 1986-09-19 | 1988-03-08 | Adaptive Computer Technologies | Adaptive data compression system |
US5001478A (en) * | 1989-12-28 | 1991-03-19 | International Business Machines Corporation | Method of encoding compressed data |
US5010344A (en) * | 1989-12-28 | 1991-04-23 | International Business Machines Corporation | Method of decoding compressed data |
US5488365A (en) * | 1994-03-01 | 1996-01-30 | Hewlett-Packard Company | Method and apparatus for compressing and decompressing short blocks of data |
US5729228A (en) * | 1995-07-06 | 1998-03-17 | International Business Machines Corp. | Parallel compression and decompression using a cooperative dictionary |
JP3277792B2 (en) * | 1996-01-31 | 2002-04-22 | 株式会社日立製作所 | Data compression method and apparatus |
US5951623A (en) * | 1996-08-06 | 1999-09-14 | Reynar; Jeffrey C. | Lempel- Ziv data compression technique utilizing a dictionary pre-filled with frequent letter combinations, words and/or phrases |
-
2005
- 2005-10-24 SE SE0502351A patent/SE530081C2/en not_active IP Right Cessation
-
2006
- 2006-10-23 WO PCT/SE2006/001198 patent/WO2007050018A1/en active Application Filing
- 2006-10-23 EP EP06799795A patent/EP1941617A4/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
EP1941617A1 (en) | 2008-07-09 |
SE0502351L (en) | 2007-04-25 |
EP1941617A4 (en) | 2012-09-19 |
SE530081C2 (en) | 2008-02-26 |
WO2007050018A1 (en) | 2007-05-03 |
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