Apparatus for recording and reproducing data on a magneto-optica

Details Apparatus for recording and reproducing data on a magneto-optica Apparatus for recording and reproducing data on a magneto-optica

1994-02-24

1996-06-18

Hindi, Nabil Z.

Dynamic information storage or retrieval

Control of storage or retrieval operation by a control...

Mechanism control by the control signal

369 50, 369 60, G11B 700

Patent

active

055285708

ABSTRACT:
An optical disc system uses a recordable MD (mini disc) which can be applied to a multi-media system mass storage, such as a CD-ROM. In an optical disc system in which data of n sectors and added data of m sectors are error-corrected in a CIRC (Cross Interleave Reed-Solomon code) fashion and error-corrected data is recorded on an MD 16 in units of L+n+m sectors (L is the number of link sectors), when data is recorded and/or reproduced, a rotational speed of the MD 16 is selected to be (L+m+n) times at least. When n is 32 sectors, m is 1 sector, and L is 3 sectors then the rotational speed is 9/8 times and a maximum data transfer rate is selected to be 150 kB/s. In this way, data in a CD-ROM 10 can be recorded on the MD 16 at substantially the same transfer rate as the maximum data transfer rate (150 kB/s) of the CD-ROM 10.

REFERENCES:
patent: 5222054 (1993-06-01), Muraoka et al.
patent: 5311492 (1994-05-01), Tabuchi et al.
patent: 5323367 (1994-06-01), Tamura et al.
patent: 5331617 (1994-07-01), Fuma et al.
patent: 5343452 (1994-08-01), Maeda et al.
patent: 5388093 (1995-02-01), Yoshida et al.
patent: 5392265 (1955-02-01), Takezawa
European Patent Office, Patent Abstracts of Japan, Publ. No. JP4258834, Publ. date Sep. 14, 1992, Class G11B, Subclass 11/10.

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