Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2002-02-25
2008-11-04
Young, Wayne (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S059250, C369S053200, C369S094000, C369S275300
Reexamination Certificate
active
07447124
ABSTRACT:
The present invention relates to a recording and/or reproduction apparatus and a program suitable for use to record or reproduce data onto or from an optical disk having two recording layers on one side thereof.In an optical disk which has, on one side thereof, two layers including a recording film L0layer in an unformatted state and another recording film L1layer in a formatted state, the recording film L0layer is formatted with marks at step S1, and formation of marks corresponding to recording data is started beginning with the recording film L0layer at step S2. After the recording film L0layer is used up, marks corresponding to recording data are formed on the recording film L1layer at step S3. The present invention can be applied, for example, to a DVD player.
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Chow Lixi
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sony Corporation
Young Wayne
LandOfFree
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