Differential data forming method, program, recording medium,...

Details Differential data forming method, program, recording medium,... Differential data forming method, program, recording medium,...

2011-03-15

2011-03-15

Lee, Wilson (Department: 2163)

Data processing: database and file management or data structures

File or database maintenance

Database archive

C707S674000

Reexamination Certificate

active

07908250

ABSTRACT:
One new file and one old file are sequentially compared from the heads of the files on a predetermined data unit basis. If a data match is found, transfer information showing a position and a data length of the old file is output. If a data mismatch is found by the sequential comparison, the old file is searched in both directions from the data position where the mismatch had been found in the old file, thereby finding a portion which matches with the data of the new file. If the matching portion can be found, shift information up to the matching portion on the old file is output. If the matching portion cannot be found, new data is added to transfer replacement information showing a length of data of the mismatching portion of the old file at a position until the matching portion can be found, and the resultant transfer replacement information is output.

REFERENCES:
patent: 5479654 (1995-12-01), Squibb
patent: 5752039 (1998-05-01), Tanimura
patent: 5765167 (1998-06-01), Kiuchi et al.
patent: RE35861 (1998-07-01), Queen
patent: 5822511 (1998-10-01), Kashyap et al.
patent: 5832520 (1998-11-01), Miller
patent: 5873097 (1999-02-01), Harris et al.
patent: 5978805 (1999-11-01), Carson
patent: 6101507 (2000-08-01), Cane et al.
patent: 6236993 (2001-05-01), Fanberg
patent: 6243766 (2001-06-01), Sliger et al.
patent: 6425125 (2002-07-01), Fries et al.
patent: 6526574 (2003-02-01), Jones

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