Title:
DISTRIBUTED FILE SYNCHRONIZATION SYSTEM
Document Type and Number:
Japanese Patent JP3042600
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the occurrence of futile data transfer for the change, etc., of a file name at the time of synchronizing the file and to store the file only on a center side.
SOLUTION: Extension file managing tables 16 and 26 identify the substance of the file by the identifier and manages a new file, the change of contents, erasing, storing, etc., as the state of the substance of the file. Extension file operating means 15 and 25 detect file operating instruction from high-order programs 11 and 21 and reflects the state change of files 14 and 24 to the tables 16 and 26. A synchronizing client 17 and a synchronizing server 27 obtain the contents of the tables 16 and 26 of a center computer 1 and a local computer 2 through communication means 18 and 28 to compare, decides processing for synchronizing the state change of the files 14 and 24 and executed only necessitated data exchange through the means 18 and 28.
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Inventors:
Hidekazu Nishikaichi
Application Number:
JP23985396A
Publication Date:
May 15, 2000
Filing Date:
August 22, 1996
Export Citation:
Assignee:
NEC
International Classes:
G06F12/00; (IPC1-7): G06F12/00; G06F12/00
Domestic Patent References:
| JP9265424A | ||||
| JP2110643A | ||||
| JP2183843A | ||||
| JP3216733A | ||||
| JP417039A | ||||
| JP498434A | ||||
| JP4354046A | ||||
| JP784850A | ||||
| JP7160566A | ||||
| JP7168747A | ||||
| JP7234812A | ||||
| JP7334352A |
Attorney, Agent or Firm:
Junichi Kawahara
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