Magnetic tape cartridge, magnetic tape drive system, and manufacturing method for magnetic tape cartridge

Abstract

To provide a magnetic tape cartridge, a magnetic tape drive system, and a manufacturing method for the magnetic tape cartridge capable of preventing tampering with the magnetic tape cartridge.SOLUTION: A magnetic tape cartridge is provided on a surface of a case and has a label on which an identifier is indicated and a mark formed over the label and the case for marking to visually confirm the state of attachment of the label to the case.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The disclosed technology relates to a magnetic tape cartridge, a magnetic tape drive system, and a method for manufacturing a magnetic tape cartridge. [Background technology]

[0002] Patent document 1 describes a recording system that includes a reading unit that is built into a recording tape cartridge and reads information recorded on a first recording medium that can read the recorded information non-contact, and a recording unit that records the information read by the reading unit on a second recording medium that can view the recorded information from the outside.

[0003] Patent Document 2 describes a cassette label to be affixed to a cassette-type recording medium containing a recording medium, the cassette label having an integrated circuit having a memory section and a signal processing section, antenna means for transferring at least signals to the integrated circuit, a label base having a shape that allows it to be affixed to any cassette label attachment section of the cassette-type recording medium to which it is to be affixed, the integrated circuit and antenna means being accommodated, and a surface on which any characters, figures, etc. can be written, and on which a mark indicating that a predetermined distance is provided at a position in the longitudinal direction of the cassette label from the accommodated antenna means, and an adhesive member provided on the surface of the label base opposite to the surface for affixing the cassette label to the cassette-type recording medium.

[0004] Patent Document 3 describes a recording media cartridge having a case in which an upper case and a lower case are joined by abutting their peripheral walls and which contains a recording medium, the recording media cartridge being characterized in that a recess is formed in the peripheral wall of the case, spanning the upper case and the lower case, and a non-reattachable sealing member is affixed within the recess, spanning the upper case and the lower case.

[0005] Patent document 4 describes a cassette label having an integrated circuit having a memory section and a signal processing section, antenna means for transferring at least signals to the integrated circuit, and a label base that houses the integrated circuit and the antenna means and is attached to the back of a video cassette tape. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2018-129103 A [Patent Document 2] Japanese Patent Application Publication No. 10-269744 [Patent Document 3] JP 2005-135487 A [Patent Document 4] Japanese Patent Application Publication No. 10-144048 Summary of the Invention

[0007] One embodiment of the technique disclosed herein provides a magnetic tape cartridge, a magnetic tape drive system, and a method for manufacturing a magnetic tape cartridge that are capable of preventing tampering with the magnetic tape cartridge. [Means for solving the problem]

[0008] A first aspect of the technology of the present disclosure is a magnetic tape cartridge having a label attached to the surface of a case and displaying an identifier, the label and the case being marked to visually confirm the attachment state of the label to the case.

[0009] A second aspect of the technique of the present disclosure is the magnetic tape cartridge according to the first aspect, in which the marking is applied by laser marking.

[0010] A third aspect of the technology disclosed herein is a magnetic tape cartridge according to the first aspect, in which the identifier includes a one-dimensional image and / or a two-dimensional matrix image and a character string, and marking is applied over the area of ​​the label in which the character string is displayed and over the case.

[0011] A fourth aspect of the technology disclosed herein is a magnetic tape cartridge according to the first aspect, in which the label has a rectangular shape and the marking is linear and intersects with each of two adjacent sides of the label.

[0012] A fifth aspect of the technology disclosed herein is a magnetic tape cartridge according to the first aspect, wherein the label has a rectangular shape and the marking is formed in a line surrounding at least one of the four corners of the label.

[0013] A sixth aspect of the technique of the present disclosure is the magnetic tape cartridge according to the fifth aspect, wherein the marking is formed in an L-shape.

[0014] A seventh aspect of the technology disclosed herein is a magnetic tape cartridge according to the first aspect, in which, when a character string included in the identifier is a first character string, a second character string, which is a character string corresponding to the first character string, is displayed on the surface of the case outside the area where the label is affixed.

[0015] An eighth aspect of the technique of the present disclosure is the magnetic tape cartridge according to the seventh aspect, wherein the second character string is displayed on a surface of the case to which the label is affixed.

[0016] A ninth aspect of the technique of the present disclosure is the magnetic tape cartridge according to the first aspect, in which the label is a security label that leaves a trace when the label is peeled off.

[0017] A tenth aspect of the technique of the present disclosure is the magnetic tape cartridge according to the first aspect, wherein the label includes a non-contact communication medium in which information indicating an identifier is stored.

[0018] An eleventh aspect of the technology of the present disclosure is a magnetic tape drive system comprising a processor that acquires a label image including an image area showing a label provided on a magnetic tape cartridge of the first aspect, and controls read and write processing for a magnetic tape provided in the magnetic tape cartridge based on the result of determining a label attachment state indicated by markings in the label image.

[0019] A twelfth aspect of the technology of the present disclosure is a method for manufacturing a magnetic tape cartridge, comprising attaching a label displaying an identifier to a surface of a case, and applying a marking formed across the label and the case for visually confirming the attachment state of the label to the case. [Brief description of the drawings]

[0020] [Figure 1] 1 is a schematic perspective view showing an example of the appearance of a magnetic tape cartridge according to an embodiment. [Diagram 2] 1 is a schematic perspective view showing an example of a label displayed on a magnetic tape cartridge according to an embodiment. FIG. [Diagram 3] 1 is a schematic perspective view showing an example of a label displayed on a magnetic tape cartridge according to an embodiment. FIG. [Figure 4] 4 is a conceptual diagram showing an example of a label displayed on a magnetic tape cartridge according to an embodiment. FIG. [Diagram 5] 1 is a schematic diagram illustrating an example of a hardware configuration of a magnetic tape drive system according to an embodiment. [Figure 6] 2 is a conceptual diagram showing an example of functions of a library controller included in the magnetic tape drive system according to the embodiment. FIG. [Figure 7] 10 is a flowchart showing an example of a label attachment process according to the embodiment. [Figure 8] 1 is a schematic perspective view showing an example of a label displayed on a magnetic tape cartridge according to an embodiment. FIG. [Figure 9]1 is a schematic perspective view showing an example of a label displayed on a magnetic tape cartridge according to an embodiment. FIG. [Figure 10] 1 is a schematic perspective view showing an example of a label displayed on a magnetic tape cartridge according to an embodiment. FIG. [Figure 11] 1 is a schematic perspective view showing an example of a label displayed on a magnetic tape cartridge according to an embodiment. FIG. [Figure 12] 1 is a schematic perspective view showing an example of a label displayed on a magnetic tape cartridge according to an embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] First, the terms used in the following description will be explained.

[0022] NVM is an abbreviation for "Non-Volatile Memory". CPU is an abbreviation for "Central Processing Unit". GPU is an abbreviation for "Graphics Processing Unit". RAM is an abbreviation for "Random Access Memory". EEPROM is an abbreviation for "Electrically Erasable and Programmable Read Only Memory". EL is an abbreviation for "Electronic Luminescent". LCD is an abbreviation for "Liquid Crystal Display". SSD is an abbreviation for "Solid State Drive". HDD is an abbreviation for "Hard Disk Drive". USB is an abbreviation for "Universal Serial Bus". ASIC is an abbreviation for "Application Specific Integrated Circuit". FPGA is an abbreviation for "Field-Programmable Gate Array". SoC is an abbreviation for "System-on-a-chip". PLC is an abbreviation for "Programmable Logic Controller". IC is an abbreviation for "Integrated Circuit." RFID is an abbreviation for "Radio Frequency IDentifier." CCD is an abbreviation for "Charge-Coupled Device." LED is an abbreviation for "light-emitting diode." AI is an abbreviation for "Artificial Intelligence."

[0023] 1, the direction of arrow A in the magnetic tape cartridge 10 is regarded as the front direction, and the side of the magnetic tape cartridge 10 in the front direction is regarded as the front side of the magnetic tape cartridge 10. In the following description of the structure of the magnetic tape cartridge 10, "front" refers to the front side of the magnetic tape cartridge 10.

[0024] 1, for convenience of explanation, the direction opposite to the front direction of the magnetic tape cartridge 10 is referred to as the rear direction of the magnetic tape cartridge 10, and the rear side of the magnetic tape cartridge 10 is referred to as the rear side of the magnetic tape cartridge 10. In the following explanation of the structure of the magnetic tape cartridge 10, "rear" refers to the rear side of the magnetic tape cartridge 10.

[0025] 1, the direction of arrow B perpendicular to the direction of arrow A is defined as the right direction, and the right side of the magnetic tape cartridge 10 is defined as the right side of the magnetic tape cartridge 10. In the following description of the structure of the magnetic tape cartridge 10, "right" refers to the right side of the magnetic tape cartridge 10.

[0026] 1, the direction opposite to the right side of the magnetic tape cartridge 10 is referred to as the left side of the magnetic tape cartridge 10, and the left side of the magnetic tape cartridge 10 is referred to as the left side of the magnetic tape cartridge 10. In the following description of the structure of the magnetic tape cartridge 10, "left" refers to the left side of the magnetic tape cartridge 10.

[0027] 1, the direction perpendicular to the directions of arrows A and B is indicated by arrow C, the direction of arrow C is the upward direction of the magnetic tape cartridge 10, and the upward side of the magnetic tape cartridge 10 is the upper side of the magnetic tape cartridge 10. In the following description of the structure of the magnetic tape cartridge 10, "upper" refers to the upper side of the magnetic tape cartridge 10.

[0028] 1, the direction opposite to the upper direction of the magnetic tape cartridge 10 is referred to as the lower direction of the magnetic tape cartridge 10, and the lower side of the magnetic tape cartridge 10 is referred to as the lower side of the magnetic tape cartridge 10. In the following description of the structure of the magnetic tape cartridge 10, "lower" refers to the lower side of the magnetic tape cartridge 10.

[0029] As shown in FIG. 1 as an example, a magnetic tape cartridge 10 has a box-shaped case 12 that is generally rectangular in plan view. The magnetic tape cartridge 10 is an example of a "magnetic tape cartridge" according to the technology of the present disclosure. The case 12 is made of resin such as polycarbonate, and has an upper case 14 and a lower case 16. The upper case 14 and the lower case 16 are joined by welding (e.g., ultrasonic welding) and screw fastening with the lower peripheral surface of the upper case 14 in contact with the upper peripheral surface of the lower case 16. The joining method is not limited to welding and screw fastening, and other joining methods may be used. The case 12 is an example of a "case" according to the technology of the present disclosure.

[0030] The cartridge reel 18 is rotatably accommodated inside the case 12. The cartridge reel 18 includes a reel hub 18A, an upper flange 18B1, and a lower flange 18B2. The reel hub 18A is formed in a cylindrical shape. The reel hub 18A is the axial center of the cartridge reel 18, and the axial direction of the reel hub 18A is aligned with the vertical direction of the case 12, and is disposed in the center of the case 12. The upper flange 18B1 and the lower flange 18B2 are each formed in an annular shape. The upper end of the reel hub 18A is fixed to the center of the upper flange 18B1 in a plan view, and the lower end of the reel hub 18A is fixed to the center of the lower flange 18B2 in a plan view. The magnetic tape MT is wound around the outer circumferential surface of the reel hub 18A, and the ends of the magnetic tape MT in the width direction are held by the upper flange 18B1 and the lower flange 18B2. The reel hub 18A and the lower flange 18B2 may be molded as a single unit.

[0031] An opening 12B is formed on the rear side of the right wall 12A of the case 12. The magnetic tape MT is pulled out from the opening 12B.

[0032] As an example, as shown in Fig. 2, a label 20 is provided on the surface of the case 12 of the magnetic tape cartridge 10. In the example shown in Fig. 2, the label 20 is affixed to the surface of the front wall 12C of the case 12. The label 20 has, for example, a rectangular shape. In the example shown in Fig. 2, the label 20 is a rectangle having a long side along the longitudinal direction of the front wall 12C of the case 12. The label 20 is an example of a "label" according to the technology of the present disclosure.

[0033] The material of the label 20 is not particularly limited, and may be made of paper or resin. Furthermore, a coating layer may be formed on the surface of the label 20.

[0034] An identifier 19 is displayed on the label 20. The identifier 19 includes a barcode 19A. The barcode 19A is a one-dimensional image indicating information for identifying the magnetic tape cartridge 10 (for example, a serial number assigned by a user for managing the magnetic tape cartridge 10, etc.). The identifier 19 is an example of an "identifier" according to the technology of the present disclosure, and the barcode 19A is an example of a "one-dimensional image" according to the technology of the present disclosure.

[0035] 2, the identifier 19 includes a character string 19B. The character string 19B is a character string indicating information for identifying the magnetic tape cartridge 10 (for example, a character string including a combination of alphanumeric characters). By displaying the character string 19B, the user can visually identify the magnetic tape cartridge 10. The character string 19B is an example of a "character string" according to the technology of the present disclosure.

[0036] 2, a label 20 on which a barcode 19A and character string 19B are printed is attached to the surface of the case 12. Here, the barcode 19A and character string 19B are printed in two rows, an upper row and a lower row, on the label 20. On the label 20, the character string 19B is printed on the upper side, and the barcode 19A is printed on the lower side.

[0037] Meanwhile, various information is recorded on the magnetic tape MT in the magnetic tape cartridge 10, and the information is read and written as necessary. Such information may include highly confidential information. Therefore, various means for preventing unauthorized reading and writing of information from the magnetic tape cartridge 10 have been considered. However, if the cartridge reel 18 on which the magnetic tape MT is wound is replaced in the magnetic tape cartridge 10, the magnetic tape MT may be tampered with. Therefore, there is a demand for preventing disassembly of the magnetic tape cartridge 10.

[0038] When the magnetic tape cartridge 10 is disassembled, the label 20 attached to the case 12 is peeled off, or the peeled off label 20 is reattached. Or, another label 20 is affixed instead. Therefore, in the magnetic tape cartridge 10 according to the present embodiment, a marking 22 is formed across the label 20 and the case 12. The marking 22 is a mark formed across the label 20 and the case 12. That is, the marking 22 straddles the outer edge of the label 20, and a part of the marking 22 is formed on the case 12, and the rest of the marking is formed on the label 20. The marking 22 is used for a user to visually confirm the state of the label 20 attached to the case 12. In the example shown in FIG. 2, a left marking 22A and a right marking 22B are formed as the marking 22. The marking 22, the left marking 22A, and the right marking 22B are examples of "marking" according to the technology of the present disclosure.

[0039] 3, the left marking 22A is formed at a position facing the upper left corner 20A of the label 20. The left marking 22A is formed in a line shape that intersects with the top side 20B and the left side 20C of the label 20. In other words, the left marking 22A is formed in a line shape that intersects with each of the two adjacent sides of the label 20.

[0040] The left marking 22A is formed in a line surrounding the upper left corner 20A. In the example shown in Fig. 3, the left marking 22A is formed in an L-shape. Specifically, a corner of the L-shape faces the upper left corner 20A of the label 20, and straight lines extending from the corners intersect with the upper side 20B and the left side 20C, respectively. Both ends of the L-shape are located on the case 12.

[0041] The right marking 22B is formed at a position facing the upper right corner 20D of the label 20. The right marking 22B is formed in a line shape that intersects with the top side 20B and the right side 20E of the label 20. In other words, the right marking 22B is formed in a line shape that intersects with each of the two adjacent sides of the label 20.

[0042] The right marking 22B is formed in a line shape surrounding the upper right corner 20D. In the example shown in Fig. 3, the right marking 22B is formed in an L shape. Specifically, a corner of the L shape faces the upper right corner 20D of the label 20, and straight lines extending from the corners intersect with the top side 20B and the right side 20E, respectively. Both ends of the L shape are located on the case 12.

[0043] The marking 22 is formed across the area of ​​the label 20 where the character string 19B is displayed and the case 12. Specifically, the left marking 22A is formed on the left side of the character string 19B, and the right marking 22B is formed on the right side of the character string 19B. In other words, the marking 22 is not formed in the area where the barcode 19A is displayed.

[0044] The left marking 22A and the right marking 22B are applied by laser marking. Specifically, laser light L is applied to the label 20 attached to the case 12, and the label 20 and the case 12 are partially scraped away to form a groove. As a result, the marking 22 is applied to the surface of the case 12 as a laser mark. Also, a part of the label that has been altered by the irradiation of the laser light L remains in the groove.

[0045] As an example, consider the case where the label 20 is peeled off the case 12 as shown in FIG. As shown in FIG. 1, after the label 20 is peeled off, the area between the upper left corner 20A of the label 20 and the left marking 22A remains on the case 12. Also, the area between the upper right corner 20D of the label 20 and the right marking 22B remains on the case 12. This allows visual confirmation that the previously attached label 20 has been peeled off.

[0046] Also, Figure 4 As shown in FIG. 4, a case will be considered in which a label 20 is peeled off and then another label 20 is affixed. In this case, the newly affixed label 20 does not have a marking 22. Therefore, the marking 22 is only affixed to the case 12 side. In other words, the marking 22 is not affixed to both the case 12 and the label 20. In the example shown in FIG. 1, the L-shaped left marking 22A and a part of the right marking 22B remain on the case 12. This makes it possible to visually confirm that another label 20 has been affixed after the label 20 has been peeled off.

[0047] Also, Figure 4 <c>Consider the case where the label 20 is peeled off and then reattached, as shown in FIG. 4. In this case, although the reattached label 20 has a marking 22, it is difficult to reattach the label 20 in exactly the same position as before it was peeled off. Specifically, this is because the position of the marking 22 on the label 20 must match the position of the marking 22 on the case 12 exactly. Therefore, after the label 20 is reattached, the marking 22 on the label 20 and the marking 22 on the case 12 are often not continuous. <c>In the example shown in FIG. 1, the marking 22 on the label 20 and the marking 22 on the case 12 are misaligned in the vertical and horizontal directions. This makes it possible to visually confirm that the same label 20 has been peeled off and then reattached. In this way, the marking 22 makes it possible to visually confirm the attachment state of the label 20 to the case 12.

[0048] The above-mentioned state of the affixed label 20 is visually checked by a user before the magnetic tape cartridge 10 is loaded into an apparatus (e.g., a magnetic tape library). If the user determines, as a result of visually checking the state of the affixed label 20, that the magnetic tape cartridge 10 may have been tampered with, the user will discontinue use of the magnetic tape cartridge 10.

[0049] Also, the state of attachment of the label 20 may be checked inside a device that reads and writes the magnetic tape cartridge 10. Below, an example in which the state of attachment of the label 20 is checked inside the magnetic tape library 32 will be described.

[0050] 5, the magnetic tape drive system 30 includes a magnetic tape library 32, a library controller 40, and a host computer 38. The magnetic tape drive system 30 is an example of a "magnetic tape drive system" according to the technology of the present disclosure.

[0051] The magnetic tape library 32 is capable of storing a plurality of magnetic tape cartridges 10. The magnetic tape library 32 also includes one or more magnetic tape drives 34. The magnetic tape library 32 also includes a cartridge storage shelf 35 and a transport mechanism 36.

[0052] The cartridge storage shelf 35 is a shelf made up of a number of cells (i.e., cartridge storage cells) large enough to store the magnetic tape cartridges 10, and each cartridge storage cell stores a predetermined number of magnetic tape cartridges 10, for example, one each. The cartridge storage cells are arranged in a lattice pattern of, for example, 10 rows and 5 columns. Note that this is merely an example, and other arrangements may be used.

[0053] The transport mechanism 36 transports the magnetic tape cartridge 10 between the cartridge storage cell and the magnetic tape drive 34. The transport mechanism 36 operates under the control of a library controller 40. The library controller 40 outputs a transport mechanism drive signal to the transport mechanism 36. The transport mechanism drive signal is a signal that instructs the transport mechanism 36 to drive.

[0054] The magnetic tape cartridge 10 is loaded into the magnetic tape drive 34. The library controller 40 outputs a tape drive drive signal to the magnetic tape drive 34. The tape drive drive signal is a signal that instructs the magnetic tape drive 34 to drive. In accordance with the tape drive drive signal, the magnetic tape drive 34 reads data from the magnetic tape MT contained in the magnetic tape cartridge 10 and writes data to the magnetic tape MT.

[0055] The library controller 40 is communicatively connected to the magnetic tape library 32 via a communication cable. The library controller 40 comprehensively controls the transport mechanism 36 and the magnetic tape drive 34. For example, the library controller 40 controls the removal of the magnetic tape cartridge 10 from the cartridge storage shelf 35 and the storage of the magnetic tape cartridge 10 in the cartridge storage shelf 35. The library controller 40 controls the transportation of the magnetic tape cartridge 10. The library controller 40 controls the loading of the magnetic tape cartridge 10 into the magnetic tape drive 34 and the removal of the magnetic tape cartridge 10 from the magnetic tape drive 34. The library controller 40 controls the reading of data from the magnetic tape MT, the writing of data to the magnetic tape MT, and the like.

[0056] The host computer 38 is communicatively connected to the library controller 40 via a communication cable. Here, wired communication is illustrated as an example, but the present invention is not limited to this, and wireless communication may also be used. The host computer 38 receives instructions from a user and instructs the reading of data from the magnetic tape MT contained in the magnetic tape cartridge 10 and the writing of data to the magnetic tape MT.

[0057] Under the control of the host computer 38, the library controller 40 searches for a specific magnetic tape cartridge 10 (e.g., a magnetic tape cartridge 10 from which data is to be read or written) from among multiple magnetic tape cartridges 10, controls the transport mechanism 36 to remove the specific magnetic tape cartridge 10 from the cartridge storage shelf 35, and controls the magnetic tape drive 34 to read and write data from the magnetic tape MT in the specific magnetic tape cartridge 10.

[0058] The library controller 40 includes a computer 42. The computer 42 includes a processor 44, a storage 46, and a RAM 48. The processor 44, the storage 46, and the RAM 48 are connected to a bus 49.

[0059] The processor 44 controls the entire library controller 40. The processor 44 has, for example, a CPU and a GPU, and controls the entire library controller 40. The GPU operates under the control of the CPU and is responsible for screen display and / or image processing. The processor 44 may be one or more CPUs that have a GPU function integrated therein, or one or more CPUs that do not have a GPU function integrated therein. The processor 44 is an example of a "processor" according to the technology of the present disclosure.

[0060] The storage 46 is a non-volatile storage device that stores various programs and various parameters. An example of the storage 46 is a flash memory (for example, an EEPROM and / or an SSD). Note that the flash memory is merely one example, and may be another non-volatile storage device such as an HDD, or may be a combination of two or more types of non-volatile storage devices. The RAM 48 is a volatile memory used as a work area when various programs are executed.

[0061] The processor 44 outputs a transport mechanism drive signal. The transport mechanism 36 selectively performs a loading operation and a storing operation in accordance with the transport mechanism drive signal input from the processor 44. The loading operation refers to the operation of removing the magnetic tape cartridge 10 from the cartridge storage shelf 35 and loading the magnetic tape cartridge 10 into the magnetic tape drive 34. The storing operation refers to the operation of removing the magnetic tape cartridge 10 from the magnetic tape drive 34 and storing it back in the cartridge storage shelf 35.

[0062] The processor 44 outputs a tape drive drive signal. The magnetic tape drive 34 selectively performs a read operation to read data from the magnetic tape MT and a write operation to write data to the magnetic tape MT in accordance with the tape drive drive signal input from the processor 44.

[0063] The host computer 38 gives instructions to the library controller 40 in response to a user request. The host computer 38 includes a processor 38A, a storage 38B, and a RAM 38C. The processor 38A controls the entire host computer 38. An example of the processor 38A is a CPU. The storage 38B is a non-volatile memory. Various programs are stored in the storage 38B. An example of the storage 38B is a flash memory (for example, an EEPROM and / or an SSD). The RAM 38C is a volatile memory used as a work area when various programs are executed.

[0064] The processor 38A, the storage 38B, and the RAM 38C are connected to the bus 38D. The host computer 38 is connected to a receiving device 38E including, for example, a mouse, a keyboard, and a touch panel, and a monitor 38F such as an EL display or LCD. The receiving device 38E receives instructions from a user for the host computer 38. The monitor 38F displays an output from the host computer 38 on a screen. Note that, although the receiving device 38E and the monitor 38F are exemplified here as independent devices, the technology of the present disclosure is not limited thereto, and an input / output device in which the receiving device 38E and the monitor 38F are integrated may be applied. As an example of the input / output device, a touch panel display in which the touch panel included in the receiving device 38E and the monitor 38F are integrated may be mentioned.

[0065] In this embodiment, control processing is performed by the processor 44 to visually check the affixed state of the label 20 on the magnetic tape cartridge 10. A control processing program 46A is stored in the storage 46. The processor 44 reads the control processing program 46A from the storage 46 and executes the read control processing program 46A on the RAM 48 to perform reading control processing. The control processing is realized by the processor 44 operating as an acquisition unit 44A and a control unit 44B.

[0066] As an example, as shown in FIG. 6, the control unit 44B controls the optical conditions of a barcode reader 37 provided in the transport mechanism 36. The barcode reader 37 is a device for reading a barcode 19A. The barcode reader 37 includes a light source 37A and a light receiving device 37B. For example, the light receiving device 37B is an imaging device including a light receiving element. An example of the light receiving element is a CCD image sensor. Also, for example, the light source 37A is an LED light source capable of emitting infrared light.

[0067] The barcode reader 37 reads the barcode 19A displayed on the label 20 of the magnetic tape cartridge 10. The scanning light Ls emitted from the light source 37A is reflected by the barcode 19A. A part of the scanning light Ls is reflected by the barcode 19A, and a return light Lr is obtained. The return light Lr is detected by the light receiving device 37B.

[0068] Based on the detection result of the light receiving element in the light receiving device 37B, a label image 50 is generated which is an image showing the label 20 of the magnetic tape cartridge 10 and its surroundings. The label image 50 includes an image showing the label 20 and an image showing the marking 22. In the processor 44 of the library controller 40, the acquisition unit 44A acquires the label image 50 from the light receiving device 37B. Then, the control unit 44B acquires the label image 50 from the acquisition unit 44A. The label image 50 is an example of a "label image" according to the technology of the present disclosure.

[0069] The control unit 44B executes image recognition processing on the label image 50 to obtain the state of attachment of the label 20 to the case 12. Here, the image recognition processing may be an AI type image recognition processing or a pattern matching type image recognition processing. As a result of the image recognition processing, the control unit 44B obtains the state of attachment of the label 20. In the example shown in FIG. 6, the marking 22 is not applied to the label 20, and an image area showing the marking 22 applied to the case 12 is detected.

[0070] The control unit 44B determines the attachment state of the label 20 based on the detection result of the image area including the marking 22. The control unit 44B determines the attachment state of the label 20 by using, for example, a table (not shown) in which the detection result in the label image 50 is input information and the attachment state of the label 20 is output information. In the example shown in Fig. 6, the marking 22 is not applied to the label 20 but is applied to the case 12, so the control unit 44B determines the attachment state of the label 20 as follows: after the label 20 is peeled off, another label 20 is attached.

[0071] Note that, here, an example of the form in which the affixing state of the label 20 is determined using a table has been described, but this is merely one example. For example, the affixing state of the label 20 may be determined using a trained model for determining the affixing state of the label 20. In this case, machine learning is performed on the neural network using data indicating the affixing state of the label 20 as correct answer data and a plurality of label images 50 as example data, thereby obtaining a trained model for determining the affixing state of the label 20.

[0072] The control unit 44B controls the reading and writing of information from and to the magnetic tape MT in the magnetic tape drive 34 based on the determined affixing state of the label 20. For example, when the affixing state of the label 20 is a state in which the label 20 has been peeled off and a different label 20 has been affixed, the control unit 44B executes control to prohibit the reading and writing of information from and to the magnetic tape MT. Specifically, the control unit 44B outputs a signal to the magnetic tape drive 34 to prohibit reading and writing from and to the magnetic tape MT. This makes it impossible to use a magnetic tape cartridge 10 that may have been tampered with.

[0073] As another example of control by the control unit 44B, control may be executed to prohibit reading and writing of information from the magnetic tape MT even when the label 20 is peeled off and then reattached with the same label 20. In addition to the control to prohibit reading and writing from the magnetic tape MT, control may be executed to notify the user that the magnetic tape cartridge 10 may have been disassembled.

[0074] Next, the process of attaching the label 20 in this embodiment (hereinafter also simply referred to as the "attaching process") will be described with reference to Fig. 7. Fig. 7 shows an example of the attaching process in this embodiment. The attaching process is performed as part of the manufacturing process of the magnetic tape cartridge 10. The attaching process shown in Fig. 7 is an example of a "magnetic tape cartridge manufacturing method" according to the technology of the present disclosure.

[0075] 7, as an example, first in step ST10, the label 20 is affixed to the case 12 of the magnetic tape cartridge 10. After that, the affixing step proceeds to step ST12.

[0076] In step ST12, markings are applied across the label 20 and the case 12 of the magnetic tape cartridge 10. For example, L-shaped markings 22 are formed at positions facing the upper left corner 20A and at positions facing the upper right corner 20D of the label 20. This completes the attachment process.

[0077] As described above, in the magnetic tape cartridge 10 according to the present embodiment, the label 20 is provided on the surface of the case 12. The identifier 19 is displayed on the label 20. The marking 22 for visually checking the affixing state of the label 20 is provided across the label 20 and the case 12. This allows the user to easily visually check the affixing state of the label 20 when the label 20 is peeled off or replaced with another label, since the marking 22 changes. When the magnetic tape cartridge 10 is disassembled and tampered with, it is assumed that the label 20 will be replaced. In this configuration, the affixing state of the label 20 can be recognized, which has a psychological deterrent effect on those who would tamper with the magnetic tape cartridge 10 by disassembling it, and tampering of the magnetic tape cartridge 10 can be suppressed.

[0078] For example, the environments in which the magnetic tape cartridge 10 is used vary from data centers, government offices, large companies, and other places with high interest in information security, to individuals or small and medium-sized enterprises, and other places with relatively low interest. Therefore, users have different awareness of the risk of the magnetic tape cartridge 10 being disassembled and tampered with. In this configuration, the method of applying the marking 22 can prevent tampering with the magnetic tape cartridge 10, so that the information security function of the magnetic tape cartridge 10 can be provided according to the needs of the user. In other words, the security level can be changed by selecting whether or not to apply the marking 22 at the manufacturing stage according to the needs of the user.

[0079] In addition, in the magnetic tape cartridge 10 according to this embodiment, the marking 22 is applied by laser marking. As a result, a part of the label 20 remains in a groove formed in the case 12 by a laser by the laser marking, so that it is easy to find that the label 20 has been peeled off. For example, if the marking 22 is merely printed on the surface of the label 20 and the case 12, the marking 22 may be removed by wiping off the paint or thinly scraping the surface. In this configuration, the groove is formed by laser marking, and a part of the label 20 (for example, a component resulting from the alteration of the label 20) remains inside the groove, so that it is difficult to remove the marking 22. Therefore, there is a psychological deterrent effect on those who would tamper with the magnetic tape cartridge 10 by disassembling it, and tampering with the magnetic tape cartridge 10 can be further suppressed.

[0080] In the magnetic tape cartridge 10 according to this embodiment, the identifier 19 displayed on the label 20 includes a barcode 19A and a character string 19B. In the label 20, a marking 22 is applied across the area where the character string 19B is displayed and the case 12. As a result, the marking 22 is applied in the print area of ​​the character string 19B, so that the effect on reading the barcode 19A can be reduced. In other words, if the marking 22 is applied in the area where the barcode 19A is displayed, the marking 22 will be recognized as part of the barcode 19A, and there is a possibility that a reading error of the barcode 19A will occur. In this configuration, the marking 22 is applied in the area where the character string 19B is displayed, so that a reading error of the barcode 19A can be suppressed.

[0081] Furthermore, in the magnetic tape cartridge 10 according to this embodiment, the label 20 has a rectangular shape, and the marking 22 is a line that intersects with each of two adjacent sides of the label 20. This makes it easier to find the change in the top / bottom and left / right attachment position of the label 20 when the label 20 is replaced with another label. As a result, it becomes easier to visually check the attachment state of the label.

[0082] Moreover, in the magnetic tape cartridge 10 according to this embodiment, the label 20 has a rectangular shape, and the marking 22 is formed in a line surrounding at least one of the four corners of the label 20. Since the marking 22 is formed in a line surrounding the corner of the label 20, when the label 20 is replaced, it is easy to find a change in the attachment position of the label 20 in the vertical and horizontal directions. Even if the label 20 is peeled off, an area including the corner of the label 20 remains on the case 12, so it is easy to find that the label 20 has been peeled off. As a result, it is easy to visually check the attachment state of the label.

[0083] Moreover, in the magnetic tape cartridge 10 according to this embodiment, the marking 22 is formed in an L-shape. Because the marking 22 is formed in an L-shape, the distance over which the marking 22 is formed can be made longer, and the marking 22 can be more easily viewed, compared to, for example, a case in which the marking 22 is a single straight line. Furthermore, when the marking 22 is formed by laser marking, a larger portion of the label 20 remains in the laser mark (for example, a groove), and the affixed state of the label 20 can be more easily viewed.

[0084] In the magnetic tape drive system 30 according to this embodiment, the acquisition unit 44A acquires the label image 50 in the processor 44 of the library controller 40. The control unit 44B executes image recognition processing on the label image 50, and further determines the affixing state of the label 20 based on the result of the image recognition processing. Then, the control unit 44B controls reading and writing of the magnetic tape MT included in the magnetic tape cartridge 10 according to the affixing state of the label 20. The fact that the label 20 has been replaced means that the magnetic tape cartridge 10 has been disassembled and that the magnetic tape MT may have been tampered with. Therefore, the affixing state of the label 20 is determined, and the reading and writing of the magnetic tape MT is controlled according to the determination result. This makes it possible to restrict the use of the magnetic tape cartridge 10 that may have been tampered with.

[0085] In the above embodiment, an example has been described in which the affixed state of the label 20 is recognized inside the magnetic tape library 32 in the magnetic tape drive system 30, but the technology of the present disclosure is not limited to this. For example, the affixed state of the label 20 may be recognized inside a standalone magnetic tape drive 34 that does not have a library function. In this case, the magnetic tape drive 34 is an example of a "magnetic tape drive system" according to the technology of the present disclosure.

[0086] (First Modification) In the above embodiment, the magnetic tape cartridge 10 is described with the marking 22 formed thereon, but the technology of the present disclosure is not limited thereto. In the present first modified example, together with the marking 22, a case character string 24 is displayed on the surface of the case 12 in an area other than the area where the label 20 is affixed.

[0087] 8, an identifier 19 displayed on a label 20 includes a character string 19B. In the following description of this modified example, for convenience of explanation, the character string 19B will be referred to as a label character string 19B.

[0088] Case string 24 is displayed on case 12 in an area other than the area where label 20 is affixed. Case string 24 is a string displayed on case 12, and indicates content corresponding to label string 19B. Label string 19B is an example of a "first string" according to the technology of the present disclosure, and case string 24 is an example of a "second string" according to the technology of the present disclosure.

[0089] Specifically, the case character string 24 indicates the same content as the label character string 19B. Note that the same content as the label character string 19B includes being exactly the same content as the label character string 19B, and further includes being content that allows individual identification of the magnetic tape cartridge 10 to the same extent as the label character string 19B.

[0090] Furthermore, the case character string 24 may indicate content in which part of the label character string 19B has been omitted or part of the label character string 19B has been added, or may indicate another character string into which the label character string 19B has been converted.

[0091] Here, the case character string 24 is printed vertically in the area to the right of the label 20 on the front wall 12C of the case 12. That is, the case character string 24 is displayed on the surface to which the label 20 is affixed.

[0092] The means for displaying the case character string 24 is not particularly limited, and the case character string 24 may be printed by spraying paint onto the case 12, or the case character string 24 may be engraved by laser marking or the like.

[0093] As described above, in the magnetic tape cartridge 10 according to the first modified example, the case character string 24 is displayed on the surface of the case 12 in an area other than the area where the label 20 is affixed. This makes it easier for the user to discover that the label 20 has been replaced by comparing the case character string 24 printed on the case 12 with the label character string 19B displayed on the label 20. In other words, even if the label 20 has been replaced, it is difficult to rewrite the case character string 24 printed on the surface of the case 12. Therefore, if the case character string 24 and the label character string 19B do not match, it is possible to discover that the label 20 has been replaced.

[0094] Furthermore, in the magnetic tape cartridge 10 according to the first modified example, the case character string 24 is printed on the front wall 12C, which is the surface to which the label 20 is affixed. This allows the user to compare the case character string 24 with the label character string 19B at a glance, making it easier for the user to discover that the label 20 has been replaced.

[0095] In the above first modified example, the case character string 24 is printed on the front wall 12C of the case 12, but the technology of the present disclosure is not limited to this. The case character string 24 may be displayed on the upper surface and / or the lower surface of the case 12 together with the front wall 12C of the case 12 or instead of the front wall 12C.

[0096] (Second Modification) In the above embodiment, an example in which the marking 22 is formed on the magnetic tape cartridge 10 has been described, but the technology of the present disclosure is not limited to this. In the present second modified example, the marking 22 is formed and a security label 26 is used as the label 20.

[0097] As an example, as shown in FIG. 9, a barcode 19A and a character string 19B are displayed on a security label 26 as the identifier 19. In a case 12, a marking 22 is applied across the security label 26 and the case 12. When the security label 26 is peeled off, a trace of the removal remains in the area where the security label 26 was attached. In the example shown in FIG. 9, after the security label 26 is peeled off, the adhesive 26A remains as the characters "OPEN VOID" in the area where the security label 26 was attached. In this way, a trace of the removal of the security label 26 remains on the case 12. A user can know that the security label 26 has been removed by visually checking the trace of the removal of the security label 26. The security label 26 is an example of a "security label according to the technology of the present disclosure."

[0098] Furthermore, when the security label 26 is peeled off, the marking 22 remains on the case 12 as well as a trace that the security label 26 has been peeled off, as described above. In particular, when the marking 22 is L-shaped and is formed at a position facing a corner of the security label 26, part of the security label 26 also remains. In the example shown in Fig. 9, an area defined by the upper right corner 20D of the security label 26 and the right marking 22B remains. By visually checking the marking 22 together with the trace that the security label 26 has been peeled off, the user can know that the security label 26 has been peeled off.

[0099] As described above, in the magnetic tape cartridge 10 according to the second modified example, the security label 26 that leaves a trace when the label 20 is peeled off is used as the label 20. This makes it easier for the user to discover that the label 20 has been peeled off.

[0100] (Third Modification) In the above embodiment, the magnetic tape cartridge 10 is described with the marking 22 formed thereon, but the technology of the present disclosure is not limited thereto. In the second modified example, the marking 22 is formed and the label 20 is provided with a non-contact communication medium 28.

[0101] 10, a barcode 19A and a character string 19B are displayed on a label 20 as the identifier 19. On the case 12, a marking 22 is provided across the label 20 and the case 12.

[0102] The label 20 includes a non-contact type communication medium 28. The non-contact type communication medium 28 is embedded in the label 20. The non-contact type communication medium 28 is equipped with an IC chip (not shown) having an NVM. In this embodiment, a so-called passive type RFID tag is adopted as the non-contact type communication medium 28, and various information is read and written to the non-contact type communication medium 28 in a non-contact manner. The non-contact type communication medium 28 is an example of a "non-contact type communication medium" according to the technology of the present disclosure.

[0103] The non-contact read / write device 60 is disposed so as to face the front wall 12C of the magnetic tape cartridge 10, and reads and writes information in a non-contact manner from the non-contact communication medium 28. The non-contact read / write device 60 emits a magnetic field MF toward the non-contact communication medium 28. The magnetic field MF penetrates the non-contact communication medium 28.

[0104] The non-contact type reading and writing device 60 performs non-contact communication with the non-contact type communication medium 28 via the magnetic field MF, and performs processing on the non-contact type communication medium 28 according to a control signal. For example, the non-contact type reading and writing device 60 selectively performs a process of reading information from the non-contact type communication medium 28 and a process of storing information in the non-contact type communication medium 28 (i.e., a process of writing information to the non-contact type communication medium 28).

[0105] Here, the non-contact type reading and writing device 60 may be a handheld type RFID tag reader / writer, or may be an RFID tag reader / writer mounted in the magnetic tape library 32 or the magnetic tape drive .

[0106] The non-contact communication medium 28 stores identifier information 28A indicating the identifier 19 displayed on the label 20. The identifier information is acquired from the non-contact communication medium 28 via the non-contact reading and writing device 60, and the affixing state of the label 20 is confirmed based on the identifier information. That is, if the identifier 19 displayed on the label 20 affixed to the case 12 does not match the identifier 19 indicated by the identifier information 28A, it can be determined that there is a high possibility that the label 20 has been peeled off. Furthermore, if there is a change in the marking 22, it can be determined that there is an even higher possibility that the label 20 has been peeled off.

[0107] As described above, in the magnetic tape cartridge 10 according to the third modified example, the label 20 includes the non-contact communication medium 28 in which the identifier information 28A is stored. This allows the label 20 to be individually identified using the non-contact communication medium 28, making it easier for the user to discover that the label 20 has been replaced.

[0108] In the above embodiment and each of the modified examples, the barcode 19A is displayed as the identifier 19, but the technology of the present disclosure is not limited to this. In the present fourth modified example, a two-dimensional matrix image 19C is displayed as the identifier 19 instead of the barcode 19A.

[0109] 11, as an example, a label 20 is provided on the surface of a case 12 of a magnetic tape cartridge 10. A marking 22 is provided on the case 12, spanning the label 20 and the case 12.

[0110] An identifier 19 is displayed on the label 20. In the example shown in Fig. 11, the identifier 19 is displayed on the surface of the front wall 12C of the case 12. The identifier 19 also includes a character string 19B and a two-dimensional matrix image 19C. The two-dimensional matrix image 19C is a two-dimensional image indicating information for identifying the magnetic tape cartridge 10 (for example, a serial number assigned by a user for managing the magnetic tape cartridge 10, etc.). The two-dimensional matrix image 19C is an example of a "two-dimensional matrix image" according to the technology of the present disclosure.

[0111] In the example shown in Fig. 11, the label 20 is provided with a left side marking 22A and a lower side marking 22C as the marking 22. The lower side marking 22C is formed at a position facing the lower left corner 20F of the label 20. The lower side marking 22C is formed in a line shape that intersects with the lower side 20G and the left side 20C of the label 20. In other words, the lower side marking 22C is formed in a line shape that intersects with each of the two adjacent sides of the label 20. In the example shown in Fig. 11, the lower side marking 22C is formed in an L shape.

[0112] The marking 22 is formed in the region where the character string 19B of the label 20 is displayed. Specifically, the left marking 22A and the lower marking 22C are formed on the left side of the character string 19B. In other words, the marking 22 is not formed in the region where the two-dimensional matrix image 19C is displayed.

[0113] As described above, in the magnetic tape cartridge 10 according to this modified example, the identifier 19 includes the character string 19B and the two-dimensional matrix image 19C. The lower marking 22C is formed in the area where the character string 19B is displayed. As a result, the marking 22 is applied in the printing area of ​​the character string 19B, so that the effect on reading the two-dimensional matrix image 19C can be reduced.

[0114] In the above embodiment and each modified example, the marking 22 is an L-shaped marking 22, but the technology of the present disclosure is not limited to this.< / c> < / c> As shown in FIG. 12, the marking 22 may be arcuate. As shown in FIG. 12, the label 20 may be a line segment intersecting each side of the label 20. <c>As shown in FIG. 12, the marking 22 may be a straight line drawn to cut off a corner of the label 20. Also, the marking 22 does not have to be linear. For example, the marking 22 shown in FIG. <d>The mark may be a circle, as shown in Figure 1. Other examples of marks include marks such as geometric shapes, such as a cross or a polygon, illustrations, or logos (e.g., a company name or product name).

[0115] Furthermore, the length, size, number and arrangement of the markings 22 can be appropriately set in consideration of the productivity of the magnetic tape cartridge 10 and the visibility of the markings 22 .

[0116] In this modified example, the identifier 19 includes the two-dimensional matrix image 19C, but the technology of the present disclosure is not limited to this. For example, the identifier 19 may include a barcode 19A together with the two-dimensional matrix image 19C. The identifier 19 may include a dot code instead of the two-dimensional matrix image 19C and the barcode 19A, or in addition to the two-dimensional matrix image 19C and the barcode 19A.

[0117] In the above embodiment, the magnetic tape drive system 30 has been described as including the magnetic tape library 32, the library controller 40, and the host computer 38, but the technology of the present disclosure is not limited to this. The magnetic tape library 32 may be controlled by a single external control device having functions equivalent to those of the host computer 38 and the library controller 40. The magnetic tape library 32 may also be provided with a single control device having functions equivalent to those of the host computer 38 and the library controller 40.

[0118] In the above embodiment, the control processing program 46A is stored in the storage 46, but the technology of the present disclosure is not limited to this. For example, the control processing program 46A may be stored in a portable storage medium such as an SSD or a USB memory. The storage medium is a non-transitory computer-readable storage medium. The control processing program 46A stored in the storage medium is installed in the computer 42 of the library controller 40. The processor 44 executes the reading control process according to the control processing program 46A.

[0119] In addition, in the above embodiment, the computer 42 is exemplified, but the technology of the present disclosure is not limited to this, and a device including an ASIC, an FPGA, and / or a PLD may be applied instead of the computer 42. In addition, a combination of a hardware configuration and a software configuration may be used instead of the computer 42.

[0120] In addition, the hardware resources for executing the control processes described in the above embodiments can use various processors as shown below. An example of a processor is a CPU, which is a general-purpose processor that functions as a hardware resource for executing control processes by executing software, i.e., a program. An example of a processor is a dedicated electronic circuit, which is a processor having a circuit configuration designed specifically for executing specific processes, such as an FPGA, a PLD, or an ASIC. Each processor has a built-in or connected memory, and each processor executes control processes by using the memory.

[0121] The hardware resource that executes the control process may be one of these various processors, or may be a combination of two or more processors of the same or different types (for example, a combination of multiple FPGAs, or a combination of a CPU and an FPGA). Also, the hardware resource that executes the control process may be a single processor.

[0122] As an example of a configuration using one processor, first, there is a configuration in which one processor is configured by combining one or more CPUs and software, and this processor functions as a hardware resource that executes control processing. Second, there is a configuration in which a processor is used that realizes the functions of the entire system including multiple hardware resources that execute control processing in a single IC chip, as typified by SoC. In this way, the control processing is realized using one or more of the above various processors as hardware resources.

[0123] The above description and illustrations are detailed descriptions of the parts related to the technology of the present disclosure, and are merely an example of the technology of the present disclosure. For example, the above description of the configuration, function, action, and effect is an example of the configuration, function, action, and effect of the parts related to the technology of the present disclosure. Therefore, it goes without saying that unnecessary parts may be deleted, new elements may be added, or replacements may be made to the above description and illustrations, within the scope of the gist of the technology of the present disclosure. In addition, in order to avoid confusion and to facilitate understanding of the parts related to the technology of the present disclosure, the above description and illustrations omit explanations of technical common sense that do not require explanation in order to enable the implementation of the technology of the present disclosure.

[0124] In this specification, "A and / or B" is synonymous with "at least one of A and B." In other words, "A and / or B" means that it may be only A, only B, or a combination of A and B. In addition, in this specification, the same idea as "A and / or B" is also applied when three or more things are expressed by connecting them with "and / or."

[0125] All publications, patent applications, and standards mentioned in this specification are herein incorporated by reference to the same extent as if each individual publication, patent application, or standard was specifically and individually indicated to be incorporated by reference.

[0126] The following is further disclosed regarding the above embodiment. <Appendix 1> A label is provided on the surface of the case and displays an identifier; A mark is formed on the label and the case, and a marking is provided for visually confirming the state in which the label is attached to the case. Magnetic tape cartridge. <Appendix 2> The marking is applied by laser marking. 2. A magnetic tape cartridge as described in claim 1. <Appendix 3> the identifier includes a one-dimensional image and / or a two-dimensional matrix image and a character string; The marking is applied to the area on the label where the character string is displayed and to the case. 10. A magnetic tape cartridge according to claim 1 or 2. <Appendix 4> The label has a rectangular shape, The marking is a line that intersects each of two adjacent sides of the label. 4. A magnetic tape cartridge according to claim 1. <Appendix 5> The label has a rectangular shape, The marking is formed in a line shape surrounding at least one of the four corners of the label. 5. A magnetic tape cartridge according to claim 1. <Appendix 6> The marking is formed in an L-shape. 6. A magnetic tape cartridge as described in claim 5. <Appendix 7> If the character string contained in the above identifier is the first character string, A second character string corresponding to the first character string is displayed on the surface of the case in an area other than the area where the label is attached. 7. A magnetic tape cartridge according to claim 1. <Appendix 8> The second character string is displayed on the surface of the case to which the label is attached. 8. The magnetic tape cartridge of claim 7. <Appendix 9> The label is a security label that leaves a trace when the label is removed. 9. A magnetic tape cartridge according to any one of claims 1 to 8. <Appendix 10> The label includes a contactless communication medium in which information indicating the identifier is stored. 10. A magnetic tape cartridge according to any one of claims 1 to 9. <Appendix 11> A processor is provided. The processor is A label image including an image area showing the label provided on the magnetic tape cartridge according to any one of claims 1 to 10 is obtained; Based on the result of judging the state of attachment of the label indicated by the marking in the label image, a read / write process for the magnetic tape included in the magnetic tape cartridge is controlled. Magnetic tape drive system. [Explanation of symbols]

[0127] 10 Magnetic Tape Cartridge 12 cases 12A Right wall 12B opening 12C front wall 14 Upper case 16 Lower case 18 Cartridge reel 18A reel hub 18B1 Top flange 18B2 Bottom flange 19 Identifiers 19A Barcode 19B String (First String) 19C 2D matrix image 20 Label 20A Top left corner 20B Top 20C Left side 20D Top right corner 20E Right side 20F bottom left corner 20G Bottom 22 Marking 22A Left side marking 22B Right side marking 22C Lower marking 24 Second String 26 Security Labels 26A Adhesive 28 Contactless communication media 28A Identifier Information 30 Magnetic Tape Drive System 32 Magnetic Tape Library 34 Magnetic Tape Drive 35 Cartridge Storage Shelf 36 Conveyor mechanism 37 Barcode Reader 37A light source 37B Photodetector 38 Host Computer 38A Processor 38B Storage 38C RAM 38D Bus 38E Reception Device 38F Monitor 40 Library Controller 42 Computers 44 processors 44A Acquisition Department 44B Control section 46 Storage 46A Control Processing Program 48 RAM 49 Bus 50 Label Images 60 Contactless reading and writing device L Laser light Lr Return light Ls Scanning light MF magnetic field MT magnetic tape< / d> < / c>

Claims

1. A label is provided on the surface of the case and displays an identifier; A mark is formed on the label and the case, and the marking is provided for visually confirming the state of attachment of the label to the case. Magnetic tape cartridge.

2. The marking is applied by laser marking.

2. The magnetic tape cartridge of claim 1.

3. the identifier includes a one-dimensional image and / or a two-dimensional matrix image and a character string; The marking is applied to the label over an area in which the character string is displayed and the case.

2. The magnetic tape cartridge of claim 1.

4. The label has a rectangular shape, The marking is a line that intersects each of two adjacent sides of the label.

2. The magnetic tape cartridge of claim 1.

5. The label has a rectangular shape, The marking is formed in a line shape surrounding at least one of the four corners of the label.

2. The magnetic tape cartridge of claim 1.

6. The marking is formed in an L-shape.

6. The magnetic tape cartridge according to claim 5.

7. When a character string included in the identifier is a first character string, A second character string corresponding to the first character string is displayed on the surface of the case in an area other than the area where the label is attached.

2. The magnetic tape cartridge of claim 1.

8. The second character string is displayed on the surface of the case to which the label is attached.

8. The magnetic tape cartridge according to claim 7.

9. The label is a security label that leaves a trace when the label is removed.

2. The magnetic tape cartridge of claim 1.

10. The label includes a contactless communication medium having information indicative of the identifier stored therein.

2. The magnetic tape cartridge of claim 1.

11. A processor is provided. The processor, A label image including an image area showing the label provided on the magnetic tape cartridge according to claim 1 is obtained; Based on the result of judging the state of attachment of the label indicated by the marking in the label image, a read / write process for the magnetic tape included in the magnetic tape cartridge is controlled. Magnetic tape drive system.

12. Affixing a label showing an identifier to the surface of the case; and providing a marking formed across the label and the case for visually confirming the state of attachment of the label to the case; A method for manufacturing a magnetic tape cartridge comprising:

Images