WO2000067119A3 - Methods and apparatuses for file synchronization and updating using a signature list - Google Patents

Methods and apparatuses for file synchronization and updating using a signature list Download PDF

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Publication number
WO2000067119A3
WO2000067119A3 PCT/US2000/012048 US0012048W WO0067119A3 WO 2000067119 A3 WO2000067119 A3 WO 2000067119A3 US 0012048 W US0012048 W US 0012048W WO 0067119 A3 WO0067119 A3 WO 0067119A3
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WO
WIPO (PCT)
Prior art keywords
segment
copy
file
computer
updating
Prior art date
Application number
PCT/US2000/012048
Other languages
French (fr)
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WO2000067119A2 (en
WO2000067119A9 (en
Inventor
Peter Dickinson
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Symantec Corp
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Family has litigation
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Application filed by Symantec Corp filed Critical Symantec Corp
Publication of WO2000067119A2 publication Critical patent/WO2000067119A2/en
Publication of WO2000067119A3 publication Critical patent/WO2000067119A3/en
Publication of WO2000067119A9 publication Critical patent/WO2000067119A9/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates
    • G06F8/658—Incremental updates; Differential updates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99931—Database or file accessing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99951—File or database maintenance
    • Y10S707/99952—Coherency, e.g. same view to multiple users
    • Y10S707/99953—Recoverability

Abstract

A server computer generates an update file for transmission to a client computer that permits the client computer to generate a copy of a current version of a subscription file from a copy of an earlier version of the subscription file. For each segment of the current version of the subscription file, the server computer searches an earlier version of a signature list for an old segment signature which matches a new segment signature corresponding to the segment. When a match is detected, the server computer writes a command in the update file for the client computer to copy an old segment of the client's computer's copy of the earlier version of the subscriptionfile into the client computer's copy of the current version of the subscription file, where the old segment corresponds to the segment for which a match was detected.
PCT/US2000/012048 1999-05-03 2000-05-02 Methods and apparatuses for file synchronization and updating using a signature list WO2000067119A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/303,958 1999-05-03
US09/303,958 US6574657B1 (en) 1999-05-03 1999-05-03 Methods and apparatuses for file synchronization and updating using a signature list

Publications (3)

Publication Number Publication Date
WO2000067119A2 WO2000067119A2 (en) 2000-11-09
WO2000067119A3 true WO2000067119A3 (en) 2001-04-26
WO2000067119A9 WO2000067119A9 (en) 2002-04-04

Family

ID=23174433

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/012048 WO2000067119A2 (en) 1999-05-03 2000-05-02 Methods and apparatuses for file synchronization and updating using a signature list

Country Status (2)

Country Link
US (2) US6574657B1 (en)
WO (1) WO2000067119A2 (en)

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