Cartridge memory, recording medium cartridge and method of manufacturing the same
阅读说明:本技术 盒存储器、记录介质盒及其制造方法 (Cartridge memory, recording medium cartridge and method of manufacturing the same ) 是由 中塩栄治 阿武和男 岩间孝信 栃久保伸哉 足立直大 山鹿実 阿部雅美 于 2019-02-05 设计创作,主要内容包括:[主题]根据本技术内容的实施方式的盒存储器是用于记录介质盒的盒存储器,其包括:存储器单元以及和容量设定单元。所述存储器单元具有能够存储与第二信息记录介质有关的管理信息的存储器容量,所述第二信息记录介质被构造为能够以大于第一数据轨道数量的第二数据轨道数量来记录信息。所述容量设定单元被构造为能够设定被限制为第一容量的数据存储区域,所述第一容量能够存储与被构造为能够以第一数据轨道数量记录信息的第一信息记录介质有关的管理信息。(The cartridge memory according to an embodiment of the present technology is a cartridge memory for a recording medium cartridge, including: a memory unit and a sum capacity setting unit. The memory unit has a memory capacity capable of storing management information relating to a second information recording medium configured to be capable of recording information with a second number of data tracks larger than the first number of data tracks. The capacity setting unit is configured to be able to set a data storage area limited to a first capacity capable of storing management information on a first information recording medium configured to be able to record information in a first number of data tracks.)
1. A cartridge memory which is a cartridge memory for a recording medium cartridge, the cartridge memory comprising:
a memory unit having a memory capacity capable of storing management information relating to a second information recording medium configured to be capable of recording information with a second number of data tracks larger than the first number of data tracks; and
a capacity setting unit configured to be able to set a data storage area to the memory unit, the data storage area being limited to a first capacity capable of storing management information on a first information recording medium configured to be able to record information in a first number of data tracks.
2. The cartridge memory according to claim 1, wherein the capacity setting unit is configured to be able to expand the data storage area limited to the first capacity to a second capacity that is able to store management information about the second information recording medium.
3. The cartridge memory according to claim 1,
the memory unit has a memory capacity of 32KB or more, and
the capacity setting unit sets the first capacity as a data storage area of 16KB or less for the memory unit.
4. The cartridge memory according to claim 1, further comprising:
and a voltage generating unit having an antenna coil for transmission/reception and receiving a signal magnetic field from an external device to generate a voltage.
5. A recording medium cartridge comprising:
a first information recording medium configured to be capable of recording information in a first number of data tracks; and
a cartridge memory, comprising:
a memory unit having a memory capacity capable of storing management information on a second information recording medium configured to be capable of recording information with a second number of data tracks larger than the first number of data tracks; and
a capacity setting unit configured to be able to set a data storage area, which is limited to a capacity capable of storing management information related to the first information recording medium, to a memory unit.
6. The recording medium cartridge according to claim 5, wherein the first recording medium is a magnetic recording medium.
7. The recording medium cartridge according to claim 6, wherein the first recording medium is a tape-shaped recording medium.
8. The recording medium cartridge as claimed in claim 7, wherein the first data track number is 6000 or more.
9. A method of manufacturing a recording medium cartridge, comprising the steps of:
preparing an information recording medium configured to be able to record information in a first number of data tracks, and a cartridge memory having a memory capacity capable of storing management information on a second information recording medium capable of recording information in a second number of data tracks larger than the first number of data tracks; and
setting a data storage area for the memory unit, the data storage area being limited to a capacity capable of storing management information relating to a first information recording medium configured to be capable of recording information in the first number of data tracks.
Technical Field
The present technical disclosure relates to a cartridge memory storing management information of an information recording medium, a recording medium cartridge including the same, and a method of manufacturing the same.
Background
In recent years, magnetic recording media have been widely used for applications such as electronic data backup. As one of the magnetic recording media, for example, since a magnetic tape cartridge has a large capacity and can be stored for a long time, the magnetic tape cartridge is attracting attention as a storage medium for large data and the like.
For example, a magnetic tape cartridge of the LTO (linear tape open) standard is equipped with an RFID (radio frequency identification) tag called a cartridge memory (for example, see patent document 1). Since the cartridge memory receives a signal magnetic field transmitted from a magnetic tape drive (reader/writer) to generate electric power, it is possible to communicate with the reader/writer without a power supply. The cartridge memory includes an antenna and an IC chip for communication/recording, and is configured to be able to read/write production management information, usage history, summary of recorded contents, and the like of the magnetic tape cartridge and the magnetic tape.
Disclosure of Invention
Technical problem to be solved
In this type of magnetic recording medium, the number of data tracks (track density) differs for each generation, and thus a plurality of types of cartridge memories having different capacities have been prepared.
In view of the above, an object of the present technology is to provide a cartridge memory, a recording medium cartridge, and a manufacturing method thereof, which are generally applicable to information recording media of a plurality of generations.
Means for solving the problems
The cartridge memory according to an embodiment of the present technology is a cartridge memory for a recording medium cartridge, including: a memory unit and a capacity setting unit.
The memory unit has a memory capacity capable of storing management information relating to a second information recording medium configured to be capable of recording information with a second number of data tracks larger than the first number of data tracks.
The capacity setting unit is configured to be able to set, to the memory unit, a data storage area limited to a first capacity capable of storing management information related to a first information recording medium configured to be able to record information in a first number of data tracks.
The capacity setting unit may be configured to be able to expand the data storage area limited to the first capacity to a second capacity that is able to store management information related to the second information recording medium.
The memory unit may have a memory capacity of 32KB or more, and the capacity setting unit may be configured to set the data storage region having a first capacity of 16KB or less for the memory unit.
The cartridge memory may further include a voltage generating unit including an antenna coil for transmission/reception and receiving a signal magnetic field from an external device to generate a voltage.
A recording medium cartridge according to an embodiment of the present technology includes: a first information recording medium and a cartridge memory.
The first information recording medium is configured to be capable of recording information in a first number of data tracks.
The cartridge memory includes a memory unit and a capacity setting unit. The memory unit has a memory capacity capable of storing management information relating to a second information recording medium configured to be capable of recording information with a second number of data tracks larger than the first number of data tracks. The capacity setting unit is configured to be able to set a data storage area, which is limited to a capacity capable of storing management information related to the first information recording medium, to the memory unit.
The first recording medium may be a magnetic recording medium.
The first recording medium may be a tape-shaped recording medium.
The first number of data tracks may be 6000 or more.
A method of manufacturing a recording medium cartridge according to an embodiment of the present technology includes the steps of:
preparing an information recording medium configured to be able to record information in a first number of data tracks, and a cartridge memory having a memory capacity capable of storing management information relating to a second information recording medium capable of recording information in a second number of data tracks larger than the first number of data tracks; and
a data storage area is set to the memory unit, the capacity of the data storage area being limited to be capable of storing management information relating to a first information recording medium configured to be capable of recording information in a first number of data tracks.
Advantageous effects of the invention
As described above, according to the present technical contents, it is possible to provide a cartridge memory that is generally applicable to information recording media of a plurality of generations. It should be noted that the effects described herein are not necessarily limiting and may be any of the effects described in the present disclosure.
Drawings
FIG. 1 is an exploded perspective view illustrating a tape cartridge according to an embodiment of the present technology.
FIG. 2 is a schematic perspective view of a tape drive apparatus.
FIG. 3 is a schematic plan view showing a cartridge memory according to an embodiment of the present technology.
Fig. 4 is a block diagram showing the configuration of the cartridge memory.
Fig. 5 is a conceptual diagram illustrating the relationship between memory cells and data storage areas in the cartridge memory.
Fig. 6 is a diagram showing a process of setting a data storage area.
Detailed Description
Hereinafter, embodiments of the present technical content will be described with reference to the accompanying drawings.
Fig. 1 is an exploded perspective view showing a tape cartridge according to an embodiment of the present technology, and fig. 2 is a schematic perspective view of a tape drive apparatus. In the present embodiment, a magnetic tape cartridge of the LTO standard (hereinafter referred to as a magnetic tape cartridge 100) shown in fig. 1 will be described as an example of a recording medium cartridge. Hereinafter, the configurations of the
[ tape cassette ]
As shown in fig. 1, the
A clamp gear (not shown) that engages with a spindle 201 (see fig. 2) of the
A
A
The
Then, in addition to the
[ tape drive apparatus ]
As shown in fig. 2, the
The magnetic
The
The
The
The reader/
For example, the
[ Cartridge storage ]
Subsequently, details of the cartridge memory CM will be described.
(basic construction)
Fig. 3 is a schematic plan view of the cartridge memory CM. The cartridge memory CM includes an RFID tag including a
The
Examples of the management information include product information and usage history information of the
The product information includes production information, the number of data tracks of the
Examples of the use history information include access date and time, address information, a communication history with the reader/
As a summary of the information recorded on the
Since the cartridge memory CM receives the signal magnetic field transmitted from the reader/
The LTO standard tape cartridge has an increased number of data tracks for each generation and a significantly improved recording capacity. For example, the number of data tracks increases from 384 for the primary LTO-1 to 512, 704, 896, 1280, 2176, 3584, and 6656 for LTO-2 through LTO-8, respectively. Similarly, the recording capacity of data increases from 100GB (gigabytes) in LTO-1 to 200GB, 400GB, 800GB, 1.5TB (gigabytes), 2.5TB, 6.0TB, and 12TB, respectively, in LTO-2.
Since the data amount of the management information stored in the cartridge memory increases as the number of data tracks of the magnetic tape increases, the capacity of the cartridge memory (memory capacity) also increases. For example, it has been increased from 4KB (kilobytes) in LTO-1 and LTO-2 to 8KB in LTO-3 through LTO-5 and 16KB in LTO-6 through LTO-8. Therefore, in the future, it is expected that as the amount of data that can be recorded in an LTO increases, the memory capacity of the cartridge memory will further increase.
As described above, for the LTO-standard magnetic tape cartridge, a plurality of types of cartridge memories need to be prepared for different generations, and thus increases in production costs and management costs cannot be avoided. In this regard, the cartridge memory CM according to the present embodiment is configured to be universally applicable to LTO of a plurality of generations. Hereinafter, details of the cartridge memory CM will be described.
(details of the cartridge memory)
Fig. 4 is a block diagram showing the configuration of the cartridge memory CM according to the present embodiment. The cartridge memory CM includes a
The
The
The
The
Although the capacity (memory capacity) of the
Examples of the circuit parameters include a capacitance setting value for setting the
The
The
The
The clock
The clock
The
The cartridge memory CM according to the present embodiment includes: a
As described above, in the present embodiment,
In this regard, in the present embodiment, a
For example, in the case where the number of data tracks of the
The aspect of the limitation of the data storage area by the
As shown, the entire capacity of the
The regions R1 and R2 do not necessarily need to be constituted by physically different data blocks, and may be set as regions in which at least a part of the regions overlap each other. Alternatively, a data storage area of a capacity above the specification may be set, and an address may be thinned out (thinned) to store information.
The
Note that a storage area other than the capacity-limited data expansion area may be reserved as an area where data is not stored, or may be used as an area for storing information other than management information. Examples of the information other than the management information include information that can be arbitrarily written by the user, and image data and text data related to information to be recorded in the
Further, the
For example, the
The
The
As described above, according to the cartridge memory CM of the present embodiment, since it includes memory cells having a specific memory capacity that does not depend on the number of data tracks, LTO cartridges of one type can be universally applied to respective generations. As a result, since it is not necessary to prepare a plurality of types of different cartridge memories for each generation, the production cost and the management cost can be reduced. Furthermore, an increase in the number of future data tracks can be coped with by one type of cartridge memory CM.
Further, since the
< modified example >
Although the embodiments of the present technology have been described above, it goes without saying that the present technology content is not limited to the above-described embodiments and various modifications are possible.
For example, although the memory capacity of the
Although in the above-described embodiment, the case memory mounted on the LTO-standard tape cartridge is described as an example, the present technology is not limited thereto, and may also be applied to tape cartridges for standards other than LTO.
Further, the present technical contents can also be applied to another information recording medium other than a magnetic tape (tape-shaped recording medium), such as an optical disk, a magnetic disk, a magneto-optical disk, a semiconductor memory, and a cartridge memory of a portable hard disk drive.
It should be noted that the present technology may adopt the following configuration.
(1) A cartridge memory which is a cartridge memory for a recording medium cartridge, the cartridge memory comprising:
a memory unit having a memory capacity capable of storing management information relating to a second information recording medium configured to be capable of recording information with a second number of data tracks larger than the first number of data tracks; and
a capacity setting unit configured to be able to set a data storage area to the memory unit, the data storage area being limited to a first capacity capable of storing management information on a first information recording medium configured to be able to record information in a first number of data tracks.
(2) The cartridge memory according to (1), wherein the capacity setting unit is configured to be able to expand the data storage area limited to the first capacity to a second capacity that is able to store management information about the second information recording medium.
(3) The cartridge memory according to (1) or (2), wherein,
the memory unit has a memory capacity of 32KB or more, and
the capacity setting unit sets the first capacity as a data storage area of 16KB or less for the memory unit.
(4) The cartridge memory according to any one of (1) to (3), further comprising:
and a voltage generating unit having an antenna coil for transmission/reception and receiving a signal magnetic field from an external device to generate a voltage.
(5) A recording medium cartridge comprising:
a first information recording medium configured to be capable of recording information in a first number of data tracks; and
a cartridge memory, comprising:
a memory unit having a memory capacity capable of storing management information on a second information recording medium configured to be capable of recording information with a second number of data tracks larger than the first number of data tracks; and
a capacity setting unit configured to be able to set a data storage area, which is limited to a capacity capable of storing management information related to the first information recording medium, to a memory unit.
(6) The recording medium cartridge according to (5), wherein the first recording medium is a magnetic recording medium.
(7) The recording medium cartridge according to (6), wherein the first recording medium is a tape-shaped recording medium.
(8) The recording medium cartridge according to (7), wherein the first data track number is 6000 or more.
(9) A method of manufacturing a recording medium cartridge, comprising the steps of:
preparing an information recording medium configured to be able to record information in a first number of data tracks, and a cartridge memory having a memory capacity capable of storing management information on a second information recording medium capable of recording information in a second number of data tracks larger than the first number of data tracks; and
setting a data storage area for the memory unit, the data storage area being limited to a capacity capable of storing management information relating to a first information recording medium configured to be capable of recording information in the first number of data tracks.
Reference numerals
11 Box housing
12 magnetic tape
32 antenna coil
33 IC chip
41 Voltage generating unit
42 memory cell
43 control unit
46 controller
49 capacity setting unit
100 tape cassette
200 magnetic tape driving device
CM box memory
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