| US 7,551,533 B2 | ||
| Optical disk, optical disk drive and method of playing back an optical disk | ||
| Yutaka Kashihara, Chigasaki (Japan); Atsushi Ishihara, Yokohama (Japan); Yuji Nagai, Sagamihara (Japan); Taku Kato, Kamakura (Japan); Yutaka Yamanaka, Tokyo (Japan); and Tatsunori Ide, Tokyo (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan); and NEC Corporation, Tokyo (Japan) | ||
| Filed on Feb. 01, 2006, as Appl. No. 11/344,217. | ||
| Claims priority of application No. 2005-026744 (JP), filed on Feb. 02, 2005. | ||
| Prior Publication US 2006/0182428 A1, Aug. 17, 2006 | ||
| Int. Cl. G11B 7/00 (2006.01) | ||
| U.S. Cl. 369—53.1 [369/53.22; 369/59.25] | 11 Claims |
| 1. An optical disk having a center hole and a burst cutting area (BCA) which is a circular region surrounding the center hole
and which has a data format comprising:
a plurality of sub-data units, each having a preamble, data, an error-detecting code, error-correcting codes, a postamble
and sync codes; and
a coupling code arranged between two adjacent sub-data units and coupling the two adjacent sub-data units.
|