Information recording medium having an area for recording inform

Details Information recording medium having an area for recording inform Information recording medium having an area for recording inform

1989-06-27

1990-03-20

Sikes, William L.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 55, G11B 700

Patent

active

049107240

ABSTRACT:
There is disclosed an information recording medium having an area for recording data and an area for recording a directory used to manage the recorded data, by providing an area for recording information indicating logical erasure of the unnecessary data. In the information record method of the present invention, when unnecessary data is produced, information indicating the logical erasure of the data is recorded in the area of the information record medium in which the directory is recorded.

REFERENCES:
patent: 4308557 (1981-12-01), Dieterich
patent: 4309721 (1982-01-01), Christopher
patent: 4497050 (1985-01-01), Beetstra
patent: 4519058 (1985-05-01), Tsurushima et al.
patent: 4545044 (1985-10-01), Satoh et al.
patent: 4742507 (1988-05-01), Kuroki et al.
Proceedings of the International Conference on Data Engineering, Los Angeles, 1984, pp. 175-180, IEEE, New York; P. Rathmann; Dynamic Data Structures on Optical Disks.

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