Title:
OPTICAL RECORDING AND REPRODUCING METHOD
Document Type and Number:
Japanese Patent JP2013178858
Kind Code:
A
Abstract:
To provide a recording and reproducing method, by which upon reproducing an optical recording medium having a planar recording/reproducing layer, even in a medium subjected to a recording operation while a defect including deformation of a disk surface is present, tracking on a continuing mark line before and after a defect can be maintained.
In a method for operating tracking on the whole defect or a part of the defect, tracking is controlled by using a signal computed by adding or subtracting a focus control signal component to or from a tracking control signal obtained from a mark line by a reproducing operation. Thus, a reproducing operation is performed under the corrected condition of tracking positions before and after the defect.
Inventors:
USHITA TOMOKI
OKANO YASUHISA
KIKUKAWA TAKASHI
OKANO YASUHISA
KIKUKAWA TAKASHI
Application Number:
JP2012041940A
Publication Date:
September 09, 2013
Filing Date:
February 28, 2012
Export Citation:
Assignee:
TDK CORP
International Classes:
G11B7/09
Domestic Patent References:
| JP2001176094A | 2001-06-29 | |||
| JPH06176390A | 1994-06-24 | |||
| JP2002117554A | 2002-04-19 | |||
| JP2002117554A | 2002-04-19 |
Foreign References:
| WO2010038311A1 | 2010-04-08 | |||
| WO2010038311A1 | 2010-04-08 |
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