Multiple data layer optical disk with recorded information ident

Details Multiple data layer optical disk with recorded information ident Multiple data layer optical disk with recorded information ident

1998-01-09

1999-05-18

Young, W. R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 4429, G11B7/095

Patent

active

059057009

ABSTRACT:
An optical disk data storage system uses an optical disk that has a plurality of substrates, each of which has a data surface. The laser light beam from the system is maintained on the data tracks of a selected one of the spaced-apart data surfaces by the use of tracking marks contained on the data surfaces. The system has a controller that identifies the type of data tracking used on the data surfaces from recorded tracking type information.

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