Optical disk

Details Optical disk Optical disk

1988-07-11

1990-10-16

Canney, Vincent P.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

G11B 700

Patent

active

049640941

ABSTRACT:
The present invention relates to an optical disk having a control track. The control track is divided into sectors in a manner similarly to a data track to record data and comprises a plurality of sectors. Each sector is composed of a sector identifying portion ID in which address information is recorded and a control field portion CF in which control data is recorded. The control field portion CF has the same format as the sector identifying portion ID. The control data is divided into recording data units in the control field portion CF and recorded. An identification flag is provided for each of the sector identifying portion ID and control field portion CF. The control track is searched by the address information in the sector identifying portion ID. The address data and control data are selected by use of the identifying flags in the sector identifying portion ID and control field portion CF, and they are read, then the control data are reassembled in order by using the address data of the sector identifying portion ID.

REFERENCES:
patent: 4571716 (1986-02-01), Szerlip
patent: 4663752 (1987-05-01), Kakuse et al.
patent: 4748611 (1988-05-01), Tsuyoshi et al.
patent: 4800549 (1989-01-01), Yamagami et al.
International Standard Organization Draft Proposal ISO/DP9171-2 (5th DP).

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