Information recording medium, information recording and reproduction method, and information recording and reproduction apparatus
OwnerToshiyuki Fukushima, Hiroshi Ueda +2inventors
InventorsToshiyuki Fukushima, Hiroshi Ueda, Motoshi Ito, Kenji Takauchi
Life of this patent
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Abstract
An information recording medium includes a data area for recording data; and a drive information area for recording at least one piece of drive information. The data area is divided into a plurality of segmented areas in a radial direction of the information recording medium. Each at least one piece of drive information includes a recording and reproduction condition corresponding to at least one of the plurality of segmented areas.
Claims77
An information recording medium, comprising:
- a data area for recording data;
- and
- a drive information area for recording at least one piece of drive information,
- wherein:
- the data area is divided into a plurality of segmented areas in a radial direction of the information recording medium, and
- each at least one piece of drive information includes a recording and reproduction condition corresponding to at least one of the plurality of segmented areas.
An information recording medium, comprising:
- a data area for recording data;
- and
- a drive information area for recording at least one piece of drive information,
- wherein:
- a temperature range indicating a range of ambient temperatures of the information recording medium includes a plurality of segmented temperature ranges, and
- each at least one piece of drive information includes a recording and reproduction condition corresponding to at least one of the plurality of segmented temperature ranges.
An information recording and reproduction method for an information recording medium including a data area divided into a plurality of segmented areas in a radial direction of the information recording medium, the method comprising the steps of:
- (a) indicating a segmented area which is a target of recording and reproduction among the plurality of segmented areas;
- (b) obtaining a recording and reproduction condition corresponding to the indicated segmented area:
- and
- (c) performing recording and reproduction based on the obtained recording and reproduction condition.
An information recording and reproduction method for an information recording medium, wherein a temperature range indicating a range of apparatus temperatures of an information recording and reproduction apparatus includes a plurality of segmented temperature ranges, the method comprising the steps of:
- (a) measuring an apparatus temperature of the information recording and reproduction apparatus;
- (b) obtaining a recording and reproduction condition corresponding to a segmented temperature range which includes the measured apparatus temperature;
- and
- (c) performing recording and reproduction based on the obtained recording and reproduction condition.
An information recording and reproduction method for an information recording medium including a drive information area for recording drive information including a plurality of recording and reproduction conditions, the method comprising the steps of:
- (a) determining whether or not the plurality of recording and reproduction conditions included in the drive information area include a first recording and reproduction condition;
- (b) when it is determined that the plurality of recording and reproduction conditions do not include the first recording and reproduction condition, determining whether or not the plurality of recording and reproduction conditions included in the drive information area include a second recording and reproduction condition;
- (c) when it is determined that the plurality of recording and reproduction conditions include the second recording and reproduction condition, calculating the first recording and reproduction condition using the second recording and reproduction condition in a predetermined condition formula;
- and
- (d) performing recording and reproduction based on the calculated first recording and reproduction condition.
An information recording and reproduction apparatus for an information recording medium including a data area divided into a plurality of segmented areas in a radial direction of the information recording medium, the apparatus comprising:
- an adjustment information processing section for obtaining a recording and reproduction condition corresponding to a segmented area which is a target of recording and reproduction among the plurality of segmented areas;
- and
- a recording and reproduction control section for performing recording and reproduction based on the obtained recording and reproduction condition.
An information recording and reproduction apparatus for an information recording medium, wherein a temperature range indicating a range of apparatus temperatures of the information recording and reproduction apparatus includes a plurality of segmented temperature ranges, the apparatus comprising:
- a temperature measuring section for measuring an apparatus temperature of the information recording and reproduction apparatus;
- an adjustment information processing section for obtaining a recording and reproduction condition corresponding to a segmented temperature range which includes the measured apparatus temperature;
- and
- a recording and reproduction control section for performing recording and reproduction based on the obtained recording and reproduction condition.
An information recording and reproduction apparatus for an information recording medium including a drive information area for recording drive information including a plurality of recording and reproduction conditions, the apparatus comprising:
- an adjustment information processing section for determining whether or not the plurality of recording and reproduction conditions included in the drive information area include a first recording and reproduction condition;
- when it is determined that the plurality of recording and reproduction conditions do not include the first recording and reproduction condition, determining whether or not the plurality of recording and reproduction conditions included in the drive information area include a second recording and reproduction condition;
- and when it is determined that the plurality of recording and reproduction conditions include the second recording and reproduction condition, calculating the first recording and reproduction condition using the second recording and reproduction condition in a predetermined condition formula;
- and
- a recording and reproduction control section for performing recording and reproduction based on the calculated first recording and reproduction condition.
Dependencies are inferred from the claim text.