Filing system for managing recording and retrieving of informati

Details Filing system for managing recording and retrieving of informati Filing system for managing recording and retrieving of informati

1996-10-17

1999-02-23

Chan, Eddie P.

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

707205, G06F 1212

Patent

active

058754768

ABSTRACT:
Filing system for managing recording and retrieving of information files on a record carrier of a rewritable type, which have a limited number of overwrites, such as CD-Erasable having a phase-change recording layer. The system includes a unit for generating non-file and file items having management information and a unit for assigning areas on the record carrier for recording the items. The management information includes references indicative of the areas, and the items include at least one item of a first type to be recorded at a predetermined area (e.g., a Primary Volume Descriptor as in ISO 9660) and items of a second type to be recorded at variable areas (e.g., a Path Table and Directory Files). To restrict the number of overwrites, the unit for assigning areas is arranged for assigning areas for items of the second type in such a way that in operational use updated versions of items of the second type are preferably assigned the same area as the original version of the respective item.

REFERENCES:
patent: 5337197 (1994-08-01), Brown et al.
patent: 5613088 (1997-03-01), Achiwa et al.
patent: 5623470 (1997-04-01), Asthana et al.
"Information Processing--Volume and File Structure of CD-ROM for Information Interchange", International Standard, ISO 9660, 1988.
ISO 9660 `Information Processing--Volume and file structure of CD-ROM for information interchange`, corrected edition, Sep. 1988, pp. 1-31.

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