Optical disk

Details Optical disk Optical disk

G - Physics

11

B

352/32.4

G11B 20/12 (2006.01) G11B 7/007 (2006.01) G11B 7/013 (2006.01) G11B 27/30 (2006.01)

Patent

CA 1309178

ABSTRACT OF THE DISCLOSURE 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 identification 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.

571998

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