Information recording medium and information reproduction...

Details Information recording medium and information reproduction... Information recording medium and information reproduction...

2003-08-13

2008-08-26

Feild, Joseph (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S069000

Reexamination Certificate

active

07417942

ABSTRACT:
There are provided parts where respective addresses of grooves on both sides of a land are identical to each other, and selection marks indicating validity of the parts are disposed. The selection marks determines the validity by taking advantage of the fact that there occurs a difference in wobble waveform in the land between a case of wobble data of the grooves on both sides of the land are identical and a case of the wobble data differ from each other. In this case, the wobble address method having an advantageous format efficiency can be used in combination with land/groove recording capable of narrowing down tracks, so that a reproduction method using a large capacity optical disc capable of high-density recording can be implemented.

REFERENCES:
patent: 5452284 (1995-09-01), Miyagawa et al.
patent: 5936932 (1999-08-01), Nakane et al.
patent: 6744718 (2004-06-01), Ko et al.
patent: 2003/0137911 (2003-07-01), Nakao et al.
patent: 9-106549 (1997-04-01), None
patent: 2856390 (1998-11-01), None

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