Data input/output device, data input/output method and storage medium
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United States of America Patent
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-
Sep 3, 2002
Grant Date -
N/A
app pub date -
Nov 8, 1999
filing date -
Nov 10, 1998
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A file control part 1 newly opens a file A in a file storage part 11 through a file accessing part 2, and secures a file data area having a certain size. An input/output control part 4 issues a request of writing into the file A to the file control part 1, and then writes data supplied from an input/output device 7 directly to a proper position of the data portion of the file A stored in a storage part 6 on the basis of information about the file A from the file control part 1. When the size of data to be written exceeds the file size previously secured, an input/output file managing part 8 requests again the file control part 1 to supplement a file data area having a certain size and makes it supplement the file data area.
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