Granted Patent B2

US 12,223,987 · App. 18/145,257 · Granted Feb 11, 2025

Inventors: Nagisa Yamasaki (Kanagawa, JP); Toru Nakao (Kanagawa, JP); Atsushi Musha (Kanagawa, JP); Kento Takishima (Kanagawa, JP)

Assignee: FUJIFILM Corporation

G11B5/534G11B5/535

Abstract

Claims (75)

1. A magnetic tape cartridge comprising:

a magnetic tape; and

a storage medium in which information on the magnetic tape is stored,

wherein the magnetic tape has a recording surface, at which data is recorded by a magnetic head in a state in which the magnetic tape is made to travel,

wherein angle adjustment information is stored in the storage medium,

wherein the angle adjustment information is information for adjusting an angle at which the magnetic head is inclined with respect to a width direction along the recording surface at a data recording timing, which is a timing at which the data is recorded at the recording surface, and

wherein the storage medium is a medium including a part of the magnetic tape.

2. The magnetic tape cartridge according to claim 1 ,

wherein the angle adjustment information includes width correspondence information corresponding to a width of the magnetic tape, and

the width correspondence information is information acquired in a state in which the magnetic tape is made to travel while the data is recorded in the recording surface.

3. The magnetic tape cartridge according to claim 2 ,

wherein the width correspondence information is acquired at a plurality of points of the magnetic tape in a total length direction of the magnetic tape.

4. The magnetic tape cartridge according to claim 1 ,

wherein the angle adjustment information includes first environment information for specifying an environment.

5. The magnetic tape cartridge according to claim 4 ,

wherein the first environment information is information including at least one of temperature information that indicates a temperature or humidity information that indicates humidity.

6. The magnetic tape cartridge according to claim 1 ,

wherein the angle adjustment information includes angle information that indicates an angle of the magnetic head being inclined with respect to the width direction along the recording surface.

7. The magnetic tape cartridge according to claim 1 ,

wherein the angle adjustment information includes physical feature information that indicates a physical feature of the magnetic tape.

8. The magnetic tape cartridge according to claim 7 ,

wherein the physical feature includes at least one of a thickness of the magnetic tape, a thickness of a magnetic layer of the magnetic tape, a friction coefficient of a front surface of the magnetic tape, a friction coefficient of a back surface of the magnetic tape, a temperature expansion coefficient of the magnetic tape, a humidity expansion coefficient of the magnetic tape, a Poisson's ratio of the magnetic tape, or a substrate of the magnetic tape.

9. A magnetic tape drive comprising:

a processor that is configured to execute processing for a magnetic tape cartridge; and

an angle adjustment mechanism that is configured to adjust an angle of a magnetic head by applying power to the magnetic head,

wherein the magnetic tape cartridge comprises:

a magnetic tape, and

a storage medium in which information on the magnetic tape is stored,

wherein the magnetic tape has a recording surface, at which data is recorded by the magnetic head in a state in which the magnetic tape is made to travel,

wherein angle adjustment information is stored in the storage medium,

wherein the angle adjustment information is information for adjusting the angle at which the magnetic head is inclined with respect to a width direction along the recording surface at a data recording timing, which is a timing at which the data is recorded at the recording surface, and

wherein the storage medium is a medium including a part of the magnetic tape, and

wherein the processor is configured to:

acquire the angle adjustment information from the part of the magnetic tape, and

cause the angle adjustment mechanism to adjust the angle based on the angle adjustment information.

10. The magnetic tape drive according to claim 9 ,

wherein the magnetic tape includes a servo band,

the magnetic head includes a servo reading element, and

the processor is configured to match a positional relationship between the servo band and the servo reading element at the data recording timing with a positional relationship between the servo band and the servo reading element at a first data reading timing which is a timing at which the data is read from the recording surface by causing the angle adjustment mechanism to adjust the angle based on the angle adjustment information.

11. The magnetic tape drive according to claim 9 ,

wherein the magnetic head is configured to read the data from the recording surface,

the angle adjustment information includes second environment information for specifying an environment, and

the processor is configured to:

acquire third environment information for specifying the environment at a timing at which the magnetic head reads the data from the recording surface, and

cause the angle adjustment mechanism to adjust the angle based on a degree of difference between the second environment information and the third environment information.

12. The magnetic tape drive according to claim 9 ,

wherein the processor is configured to:

acquire fourth environment information for specifying an environment at a first timing at which the data is recorded in the recording surface,

acquire fifth environment information for specifying the environment at a second timing at which the data is recorded in the recording surface, the second timing being different from the first timing, and

cause the angle adjustment mechanism to adjust the angle based on a degree of difference between the fourth environment information and the fifth environment information.

13. The magnetic tape drive according to claim 12 ,

wherein the second timing is a timing at which the data is updated by performing overwriting to the data recorded in the recording surface at the first timing and/or a timing at which new data is added to the recording surface in which the data is recorded at the first timing.

14. A magnetic tape system comprising:

a magnetic tape cartridge; and,

a magnetic tape drive including a processor that is configured to execute processing for a magnetic tape and an angle adjustment mechanism that adjusts an angle of a magnetic head by applying power to the magnetic head,

wherein the magnetic tape cartridge comprises:

a magnetic tape, and

a storage medium in which information on the magnetic tape is stored,

wherein the magnetic tape has a recording surface, at which data is recorded by the magnetic head in a state in which the magnetic tape is made to travel,

wherein angle adjustment information is stored in the storage medium,

wherein the angle adjustment information is information for adjusting the angle at which the magnetic head is inclined with respect to a width direction along the recording surface at a data recording timing, which is a timing at which the data is recorded at the recording surface, and

wherein the storage medium is a medium including a part of the magnetic tape, and

wherein the processor is further configured to:

acquires the angle adjustment information from the part of the magnetic tape, and

causes the angle adjustment mechanism to adjust the angle based on the angle adjustment information.

15. An operation method of a magnetic tape drive, the method comprising:

acquiring angle adjustment information from a storage medium included in a magnetic tape cartridge; and

causing an angle adjustment mechanism to adjust an angle of a magnetic head based on the angle adjustment information,

wherein the magnetic tape cartridge comprises:

a magnetic tape, and

the storage medium in which information on the magnetic tape is stored,

wherein the magnetic tape has a recording surface, at which data is recorded by the magnetic head in a state in which the magnetic tape is made to travel,

wherein the angle adjustment information is stored in the storage medium,

wherein the storage medium is a medium including a part of the magnetic tape, and

wherein the angle adjustment information is information for adjusting the angle at which the magnetic head is inclined with respect to a width direction along the recording surface at a data recording timing, which is a timing at which the data is recorded at the recording surface.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (21)