System and method for in-place modification of information recor

Details System and method for in-place modification of information recor System and method for in-place modification of information recor

1996-03-15

1998-11-03

Swann, Tod R.

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

395616, 711102, 711112, G06F 1730

Patent

active

058322639

ABSTRACT:
A system and method for allowing modification of information recorded in a read-only storage, including CD-ROMs, ROMs, read-only network directories, read-only files, and WORM media and devices (after being written or burnt.) The method and system intercepts read and write requests targetted at the read-only storage and remaps them when appropriate to a modifiable storage area. The modifying information may appear to the user to supplement, alter, or delete information recorded in the read-only storage. Information is combined from the modifiable storage and the read-only storage and presented to the user such that the entire read-only storage information need not be copied into memory.

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patent: 5542081 (1996-07-01), Geronimi

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