US 7,321,548 B2 | ||
Optical disk, optical disk recording method and optical disk apparatus | ||
Yutaka Okamoto, Chofu (Japan); Hideo Ando, Hino (Japan); Chosaku Noda, Kawasaki (Japan); and Yutaka Kashihara, Fuchu (Japan) | ||
Assigned to Kabushiki Kaisha Toshiba, Kawasaki-shi (Japan) | ||
Filed on Nov. 25, 2006, as Appl. No. 11/563,170. | ||
Application 11/328132 is a division of application No. 11/059386, filed on Feb. 17, 2005, granted, now 7,012,873. | ||
Application 11/059386 is a division of application No. 10/748142, filed on Dec. 31, 2003, granted, now 6,870,804. | ||
Application 10/748142 is a division of application No. 10/441119, filed on May 20, 2003, granted, now 6,711,111. | ||
Application 10/441119 is a division of application No. 09/861715, filed on May 22, 2001, granted, now 6,587,417. | ||
Application 11/563170 is a continuation of application No. 11/328132, filed on Jan. 10, 2006. | ||
Claims priority of application No. 2000-151421 (JP), filed on May 23, 2000. | ||
Prior Publication US 2007/0086318 A1, Apr. 19, 2007 | ||
This patent is subject to a terminal disclaimer. | ||
Int. Cl. G11B 7/24 (2006.01) |
U.S. Cl. 369—275.4 [369/275.1; 369/59.22; 369/59.1] | 1 Claim |
1. An optical disc, comprising:
a first area including first data formed as pre-pit data; and
a second recording area being configured to store second recording data,
a minimum mark length of the second recording data being based on a 2T system, the second recording data being recorded in
such a manner as to be detected in partial response and maximum likelihood (PRML) detecting system, a part of the pre-pit
data being measured by a slicer, other part of the pre-pit data being detected by the PRML detecting system, and both of outputs
from the slicer and the PRML detecting system being allowed to be corrected for error data, respectively.
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