Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reexamination Certificate
2003-05-30
2008-03-11
Korzuch, William R. (Department: 2627)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S052100, C369S052100
Reexamination Certificate
active
07342871
ABSTRACT:
A high-density optical disc such as a high density-digital versatile disc (HD-DVD) or Blu-ray disc, and a method for reproducing or recording data of the high-density optical disc. The high-density optical disc includes a lead-in area, a data area and a lead-out area. The lead-in area has control information. A minimum mark or space length of the control information recorded in the lead-in area is longer than that of data recorded in the data area. The control information of the lead-in area is copied to the lead-out area. On the basis of the data reproduction or recording method, an optical disc device can correctly read and confirm the control information from the high-density optical disc, minimize the interference between a mark and space in high-density recording data, reduce the effects of scratches or dust on the disc, and efficiently prevent an erroneous data reproduction or recording operation.
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Machine Translation, Fujimoto JP 08339543 A, Dec. 1996.
Kim Young Kuk
Park Kyung Chan
Haley Joseph
Harness & Dickey & Pierce P.L.C.
Korzuch William R.
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