CA2334442A1 - Method and apparatus for data compression of network packets - Google Patents

Method and apparatus for data compression of network packets Download PDF

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Publication number
CA2334442A1
CA2334442A1 CA002334442A CA2334442A CA2334442A1 CA 2334442 A1 CA2334442 A1 CA 2334442A1 CA 002334442 A CA002334442 A CA 002334442A CA 2334442 A CA2334442 A CA 2334442A CA 2334442 A1 CA2334442 A1 CA 2334442A1
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CA
Canada
Prior art keywords
compression
packet
history
packets
increased
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002334442A
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French (fr)
Other versions
CA2334442C (en
Inventor
Sean Matthew Dorward
Sean Quinlan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
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Lucent Technologies Inc
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Filing date
Publication date
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of CA2334442A1 publication Critical patent/CA2334442A1/en
Application granted granted Critical
Publication of CA2334442C publication Critical patent/CA2334442C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

A method and apparatus for compressing packets that enables inter-packet compression thereby achieving greater robustness and increased compression ratios without the deleterious effects, e.g., the effect of packet loss multiplying, of prior compression schemes. More particularly, a so-called acknowledgment scheme is employed in conjunction with the specific compression algorithm such that the transmitter, i.e., sender, can limit the history used by the compression algorithm to those packets that are correctly received. In particular, a vector identifying the packets used as the history is included in the compressed packet thereby enabling the receiver to reconstruct the packet history state necessary to decompress the packet.
Advantageously, increased robustness and greater compression ratios are achieved independent of any particular one compression scheme.
CA002334442A 2000-03-16 2001-02-07 Method and apparatus for data compression of network packets Expired - Lifetime CA2334442C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/527,315 2000-03-16
US09/527,315 US6388584B1 (en) 2000-03-16 2000-03-16 Method and apparatus for data compression of network packets

Publications (2)

Publication Number Publication Date
CA2334442A1 true CA2334442A1 (en) 2001-09-16
CA2334442C CA2334442C (en) 2005-07-26

Family

ID=24100973

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002334442A Expired - Lifetime CA2334442C (en) 2000-03-16 2001-02-07 Method and apparatus for data compression of network packets

Country Status (5)

Country Link
US (1) US6388584B1 (en)
EP (1) EP1134900B1 (en)
JP (1) JP3875502B2 (en)
CA (1) CA2334442C (en)
DE (1) DE60001210T2 (en)

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CN110518917A (en) * 2019-07-17 2019-11-29 华东计算技术研究所（中国电子科技集团公司第三十二研究所） LZW data compression method and system based on Huffman coding

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110518917A (en) * 2019-07-17 2019-11-29 华东计算技术研究所（中国电子科技集团公司第三十二研究所） LZW data compression method and system based on Huffman coding
CN110518917B (en) * 2019-07-17 2023-01-03 华东计算技术研究所（中国电子科技集团公司第三十二研究所） LZW data compression method and system based on Huffman coding

Also Published As

Publication number Publication date
EP1134900B1 (en) 2003-01-15
CA2334442C (en) 2005-07-26
DE60001210D1 (en) 2003-02-20
JP3875502B2 (en) 2007-01-31
JP2001298369A (en) 2001-10-26
DE60001210T2 (en) 2003-08-21
US6388584B1 (en) 2002-05-14
EP1134900A1 (en) 2001-09-19

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