Recording medium, information recording and reproducing...

Details Recording medium, information recording and reproducing... Recording medium, information recording and reproducing...

2006-12-26

2006-12-26

Tran, Thang V. (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S047220, C369S275300

Reexamination Certificate

active

07154840

ABSTRACT:
Conventionally, as in the case of switching between a DVD-R and a DVD-RAM, when the method of record mark arrangement in a track is changed, the physical format of the disk is also changed. This makes it difficult to ensure compatibility between pieces of data recorded by a plurality of different methods of record mark arrangement. According to the present invention, sector address data and block address data are recorded in each sector by using wobbling or deformation of a recording groove. Then, depending on which address is used, sector data structure is modified, thereby making it possible to select an address data detection and a data structure on a disk in a single physical format depending on the purpose.

REFERENCES:
patent: 5870375 (1999-02-01), Maeda et al.
patent: 6754152 (2004-06-01), Kando et al.
patent: 05-225580 (1993-09-01), None
patent: 07-296389 (1995-11-01), None

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