Disk-device correcting system, information managing device, master-disk producing device, and master-disk producing method

1. A disk-device correcting system comprising:

a master-disk producing device that produces a master disk that serves as a pattern when forming a servo signal on a track of a first disk, the master disk including one of a medium for magnetic transfer, a discrete track medium, and a patterned medium;

a disk producing device that produces the first disk on which the servo signal is formed on the track using the master disk:

a first disk device that includes the first disk produced by the disk producing device, and reads the servo signal recorded on the track of the first disk while correcting the servo signal; and

a correction-information storing device that stores master-disk identification information for identifying the master disk, which is specific information that is specific to the master disk, and first correction-information for correcting the servo signal of the first disk produced from the master disk, in a corresponding manner,

wherein:

the master-disk producing device produces the master disk with the master-disk identification information added,

the disk producing device produces the first disk with the master-disk identification information added, using the master disk with the master-disk identification information added,

the first disk device obtains, after the first disk with the master-disk identification information added is mounted, the first correction information from the correction-information storing device based on the master-disk identification information of the first disk, and

the first correction information includes information for correcting a missing portion of the servo signal on the track.

2. The disk-device correcting system according to claim 1 , further comprising:

a second disk device that includes a second disk produced from a master disk that is common to the first disk,

wherein the first correction information is second correction information for correcting a servo signal of the second disk measured by the second disk device.

3. The disk-device correcting system according to claim 1 , wherein the first correction information includes information for correcting a rotation synchronization component of a positional difference on the track when reading out the servo signal.

4. The disk-device correcting system according to claim 1 , wherein the specific information is recorded on a same line across a plurality of tracks on the first disk in a radial direction of the first disk.

5. The disk-device correcting system according to claim 1 , wherein the specific information is recorded with a bit length longer than the servo signal on the track on the first disk.

6. The disk-device correcting system according to claim 1 , wherein the specific information is recorded repeatedly a plurality of times in a direction of the track on the first disk.

7. The disk-device correcting system according to claim 1 , wherein the specific information is recorded by being included in the servo signal on the first disk.

8. A disk-device correcting system comprising:

a master-disk producing device that produces a master disk that serves as a pattern when forming a servo signal on a track of a first disk, the master disk including one of a medium for magnetic transfer, a discrete track medium, and a patterned medium;

a disk producing device that produces the first disk on which the servo signal is formed on the track using the master disk:

a first disk device that includes the first disk produced by the disk producing device, and reads the servo signal recorded on the track of the first disk while correcting the servo signal; and

a correction-information storing device that stores master-disk identification information for identifying the master disk, which is specific information that is specific to the master disk, and first correction-information for correcting the servo signal of the first disk produced from the master disk, in a corresponding manner,

wherein:

the master-disk producing device produces the master disk with the master-disk identification information added,

the disk producing device produces the first disk with the master-disk identification information added, using the master disk with the master-disk identification information added,

the first disk device obtains, after the first disk with the master-disk identification information added is mounted, the first correction information from the correction-information storing device based on the master-disk identification information of the first disk, and

the specific information is recorded on either one or an innermost track position and an outermost track position corresponding to a movable limit position of a head that reads the servo signal with respect to the track on the first disk.

9. The disk-device correcting system according to claim 8 , further comprising:

a second disk device that includes a second disk produced from a master disk that is common to the first disk, wherein

the first correction information is second correction information for correcting a servo signal of the second disk measured by the second disk device.

10. The disk-device correcting system according to claim 8 , wherein

the first correction information includes information for correcting a rotation synchronization component of a positional difference on the track when reading out the servo signal.

11. The disk-device correcting system according to claim 8 , wherein

the specific information is recorded on a same line across a plurality of tracks on the first disk in a radial direction of the first disk.

12. The disk-device correcting system according to claim 8 , wherein

the specific information is recorded with a bit length longer than the servo signal on the track on the first disk.

13. The disk-device correcting system according to claim 8 , wherein

the specific information is recorded repeatedly a plurality of times in a direction of the track on the first disk.

14. The disk-device correcting system according to claim 8 , wherein

the specific information is recorded by being included in the servo signal on the first track.

15. A disk-device correcting system comprising:

a master-disk producing device that produces a master disk that serves as a pattern when forming a servo signal on a track of a first disk, the master disk including one of a medium for magnetic transfer, a discrete track medium, and a patterned medium;

a disk producing device that produces the first disk on which the servo signal is formed on the track using the master disk:

a first disk device that includes the first disk produced by the disk producing device, and reads the servo signal recorded on the track of the first disk while correcting the servo signal; and

a correction-information storing device that stores master-disk identification information for identifying the master disk, which is specific information that is specific to the master disk, and first correction-information for correcting the servo signal of the first disk produced from the master disk, in a corresponding manner,

wherein:

the master-disk producing device produces the master disk with the master-disk identification information added,

the disk producing device produces the first disk with the master-disk identification information added, using the master disk with the master-disk identification information added,

the first disk device obtains, after the first disk with the master-disk identification information added is mounted, the first correction information from the correction-information storing device based on the master-disk identification information of the first disk, and

the specific information is recorded in a system area in which information for controlling the first disk device is recorded on the first disk.

16. The disk device correcting system according to claim 15 , further comprising:

a second disk device that includes a second disk produced from a master disk that is common to the first disk, wherein

the first correction information is second correction information for correcting a servo signal of the second disk measured by the second disk device.

17. The disk device correcting system according to claim 15 , further comprising:

the first correction information includes information for correcting a rotation synchronization component of a positional difference on the track when reading out the servo signal.

18. The disk device correcting system according to claim 15 , wherein

the specific information is recorded on a same line across a plurality of tracks on the first disk in a radial direction of the first disk.

19. The disk device correcting system according to claim 15 , wherein

the specific information is recorded with a bit length longer than the servo signal on the track on the first disk.

20. The disk device correcting system according to claim 15 , wherein

the specific information is recorded repeatedly a plurality of times in a direction of the track on the first disk.