Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2006-01-05
2009-06-30
Neyzari, Ali (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S047280
Reexamination Certificate
active
07554900
ABSTRACT:
An optical disc (200) according to the present invention has a recording area divided into 28 zones of from a zone Z0to a zone Z27. In a given zone, the number of waves of a wobble is set so as to be equal, that is, the number of waves of the ADIP carrier is set so as to be equal, between optional two neighboring turns of the track or between optional two neighboring tracks. This achieves inphase-outphase matching on an average, for decreasing a WPP signal, so that such an optical disc may be provided in which no low frequency components are superposed on push-pull signals, even though the optical disc is of such a type in which the track pitch is narrower than 1.6 μm, such as 1.25 μm, or in which a mark is detected by DWDD from a groove, as in the case of the next generation MD2.
REFERENCES:
patent: 6172952 (2001-01-01), Inokuchi et al.
patent: 6603729 (2003-08-01), Van Den Enden
patent: 6751185 (2004-06-01), Van Den Enden
patent: 6765847 (2004-07-01), Birukawa et al.
patent: 2001/0026515 (2001-10-01), Mochizuki et al.
patent: 2001/0050888 (2001-12-01), Eguchi et al.
patent: 0 813 198 (1997-12-01), None
patent: 0 821 350 (1998-01-01), None
patent: 1 207 531 (2002-05-01), None
patent: 10-3667 (1998-01-01), None
patent: 10-91967 (1998-04-01), None
patent: 10-124878 (1998-05-01), None
patent: 10-134357 (1998-05-01), None
patent: 11-45439 (1999-02-01), None
patent: 2000-113453 (2000-04-01), None
patent: 2001-250239 (2001-09-01), None
patent: WO 00/08636 (2000-02-01), None
Patent Abstracts of Japan, JP 2000-113453, Apr. 21, 2000.
Patent Abstracts of Japan, JP 10-134357, May 22, 1998.
Neyzari Ali
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Sony Corporation
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