Apparatus for recording and playing back information from an...

Details Apparatus for recording and playing back information from an... Apparatus for recording and playing back information from an...

2006-07-25

2006-07-25

Dinh, Tan (Department: 2653)

Dynamic information storage or retrieval

Simultaneous diverse types of storage or retrieval

C369S275300, C369S053220, C369S047270

Reexamination Certificate

active

07082082

ABSTRACT:
An optical disk, a recording apparatus and playing apparatus which can record various kinds of identification information in the form of a pit train and a bar code without decreasing the data recording area for main information. Both a first data block including a pit train indicating first identification information and a second data block including a bar code indicating second identification information are formed in the recording part at the same radius.

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Information Recording Medium, Tomita Yoshimi (Japan, 2004-103078), Feb. 4, 2004.

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