Recordable type information recording medium, information...

Details Recordable type information recording medium, information... Recordable type information recording medium, information...

2011-04-19

2011-04-19

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S275300, C369S283000

Reexamination Certificate

active

07929405

ABSTRACT:
In a recording disc, a straight groove (31) and a position determining pit (33) are formed in an inner circumference area (21), and a straight groove (34) and an over-run preventing pit (36) are formed in an outer circumference area (22), and only a straight groove (37) is formed over the entire middle area (23).

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