Optical disk having wobble patterns representing control...

Details Optical disk having wobble patterns representing control... Optical disk having wobble patterns representing control...

2006-04-11

2006-04-11

Psitos, A M (Department: 2656)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S275300, C369S275400

Reexamination Certificate

active

07027374

ABSTRACT:
On an optical disk medium according to the present invention, address information is recorded along a wobbling track groove2.The track groove2is made up of a plurality of unit sections22, 23.Each of these unit sections22, 23has side faces that are displaced periodically in a disk radial direction. This displacement oscillates at a single period in a tracking direction. However, the displacement pattern differs depending on “each bit of address information (subdivided information)” allocated to each of the unit sections22, 23.

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Minamino J-I et al., “Practical Study of Saw-tooth Wobble Addressing by Theoretical and Experimental Approaches,” Jpn. J. Appl. Phys., vol. 41, No. 3B, Mar. 1, 2002, pp. 1741-1742.

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