WO2004107337A1 - 光情報記憶装置および光情報記憶システム - Google Patents
光情報記憶装置および光情報記憶システム Download PDFInfo
- Publication number
- WO2004107337A1 WO2004107337A1 PCT/JP2003/006863 JP0306863W WO2004107337A1 WO 2004107337 A1 WO2004107337 A1 WO 2004107337A1 JP 0306863 W JP0306863 W JP 0306863W WO 2004107337 A1 WO2004107337 A1 WO 2004107337A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- medium
- optical
- unit
- information
- storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
- G11B17/225—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records wherein the disks are transferred from a fixed magazine to a fixed playing unit using a moving carriage
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
- G11B23/505—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges of disk carriers
Definitions
- the present invention integrates an optical information storage device that performs information reproduction on at least an optical storage medium on which information is reproduced by light and also cleans the optical storage medium, and a plurality of optical information storage devices.
- Optical information storage system Background art
- a magnetic tape storage device which is a type of large-capacity information storage device, can realize a large capacity exceeding the capacity of an 8-disk at low cost.However, magnetic tape is a sequential medium that reads and writes information sequentially. As a result, there is a difficulty in information input / output speed, and currently it is used only for long-term storage of information.
- Optical information storage devices that use optical storage media, such as MOs and DVDs, to store information on hard disks and magnetic tapes that have these disadvantages can read and write information at high speed, and have a blue laser diode.
- Optical information storage devices that use optical storage media, such as MOs and DVDs, to store information on hard disks and magnetic tapes that have these disadvantages can read and write information at high speed, and have a blue laser diode.
- a dramatic increase in capacity is expected due to technological innovations such as the development of magnetic tapes and surface recording methods, and realization of storage capacity comparable to magnetic tape storage devices is expected. It is attracting attention as a next-generation memory device.
- the latest technology includes a magazine for storing a plurality of optical storage media, a drive for reading and writing information from and to the optical storage medium, and a changer for moving the optical storage medium between the magazine and the drive.
- An optical information storage device compactly housed in a housing has been devised (hereinafter, such an optical information storage device is referred to as a multi-media storage device).
- a multi-media storage device By using such a multi-media storage device, it is possible to easily increase the capacity by increasing the number of optical storage media or arranging a plurality of multi-media storage devices. Maintenance can be easily performed by exchange.
- information is recorded on an optical storage medium by irradiating light from a head, or reflected light reflected on the optical storage medium is received by a head, and based on the reflected light, an optical storage medium is used.
- the reproduction of information recorded in a computer has been performed. Therefore, if dirt such as dust or tar such as tobacco adheres to the head, information cannot be read and written correctly, and the performance of the optical information storage device may be degraded.
- Patent Document 1 a method of directly cleaning a head by mounting a cleaning medium on an optical information storage device (for example, Patent Document 1, Patent Document 2, Patent Document 3, Patent Document 4, and Patent Document 5). See also) and methods for cleaning the optical storage medium with a cleaning drive provided separately from the recording / reproducing drive to prevent unwanted objects from being brought into the recording / reproducing drive.
- Patent Document 3, Patent Document 4, and Patent Document 6 have been devised.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2000-093112
- Patent Document 3 Patent Document 3
- Patent Document 4 Patent Document 4
- Patent Document 5 (Patent Document 5)
- Patent Document 6 (Patent Document 6)
- the cleaning medium is rotated in the drive, so that dust and dirt are scattered and dispersed, and the cleaning medium itself becomes dirty due to repeated cleaning. Unnecessary substances may adhere to the head again.
- the present invention is applied to a multi-media storage device in which a plurality of optical storage media are stored, the number of optical storage media that can be stored is reduced by the number of cleaning media mounted, and the storage capacity of the entire multi-media storage device is reduced. There is also a problem that is reduced.
- cleaning is performed, for example, by the operator instructing the start of cleaning, or detecting the dirt on the head or optical storage medium and instructing the cleaning.
- Explicit operations and complicated mechanisms are required for cleaning, and if the frequency of cleaning is increased, the head can be kept clean. There is an inconvenience that the time for performing the original operation is reduced, and the Development of an optical information storage device capable of performing leaning is desired. Disclosure of the invention
- the present invention has been made in view of the above circumstances, and in an optical information storage device in which components and a plurality of optical storage media are built in a housing, an optical information storage device capable of appropriately performing cleaning with a simple mechanism, and It is an object to provide an optical information storage system in which a plurality of optical information storage devices are integrated.
- an optical information storage device of the present invention comprises a box-shaped housing
- a medium storage unit that is arranged at one end in the housing and stores a plurality of disk-shaped optical storage media from which at least information is reproduced by light;
- An information reproducing unit for reproducing information from an optical storage medium which is arranged at a distance from the medium storing unit in the housing;
- a medium moving unit disposed between the medium storing unit and the information reproducing unit, for moving the optical storage medium between the medium storing unit and the information reproducing unit;
- the medium moving unit includes a cleaning unit disposed on a path for moving the optical storage medium, the cleaning unit removing unnecessary substances on the optical storage medium.
- optical information storage device of the present invention unnecessary substances adhering to the optical storage medium are removed before the optical storage medium is loaded into the information reproduction unit, and thus unnecessary substances are mixed in the information reproduction unit. Can be prevented beforehand. Further, according to the optical information storage device of the present invention, since it is not necessary to provide a cleaning drive for cleaning the optical storage medium, it is possible to suppress an increase in the size of the device, and the cleaning frequency is high. It does not affect the operation time of the storage device.
- the above-mentioned medium storage section is configured such that the optical storage media are stored side by side with a gap therebetween, and when the optical storage medium is taken in and out of the gap.
- a preferred embodiment is one in which a cleaning member that contacts the optical storage medium and wipes unnecessary objects on the optical storage medium is provided, and that also serves as the above-described cleaning unit.
- the cleaning member such as a sheet as described above, each time an optical storage medium is inserted into or removed from the medium storage unit, the cleaning member is used. Unnecessary objects on the optical storage medium are wiped off. Therefore, the cleaning can be automatically performed by a simple mechanism without requiring an explicit operation or a complicated mechanism for performing the cleaning.
- the medium moving unit includes a cleaning member that contacts the optical storage medium when the optical storage medium is moved and wipes off unnecessary objects on the optical storage medium.
- An embodiment in which the above-mentioned cleaning unit is used also is a preferable embodiment.
- the cleaning member is a sheet.
- the cleaning member is a brush.
- optical information storage device of the present invention
- the medium storage unit is detachably disposed at one end of a housing.
- the housing includes a medium storage unit, a medium moving unit, and an information reproducing unit arranged in a line therein, and the medium storage unit. , A medium moving unit, an information reproducing unit, and a cleaning unit.
- the system housing in which a plurality of the optical information storage devices are mounted is further provided with a connection section for detachably connecting the optical information storage device.
- the medium storage unit, the information reproducing unit, and the medium moving unit are housed compactly in the housing, so that the number of optical storage media can be increased and a plurality of optical information storage devices can be provided.
- the capacity can be easily expanded by arranging them, and maintenance can be performed by attaching / detaching or replacing the media storage unit or optical storage medium located at one end in the housing. Can be easily performed.
- the optical information storage system of the present invention includes a box-shaped housing, a medium storage unit that is disposed at one end in the housing and stores a plurality of disk-shaped optical storage media on which at least information is reproduced by light.
- An information reproducing unit for reproducing information from the optical storage medium which is disposed at a distance from the medium storing unit in the housing; and a medium storing unit, which is disposed between the medium storing unit and the information reproducing unit.
- control unit that controls recording and / or reproduction of information in each of the plurality of optical information storage devices mounted on the system housing.
- a plurality of optical information storage devices in which a medium storage unit, a recording / reproducing unit, and a medium moving unit are housed in a compact manner are provided.
- a system can be constructed, and the optical storage media stored in each of the optical information storage devices can be appropriately cleaned by a simple mechanism.
- the capacity can be easily expanded by increasing the number of optical storage media and optical information storage devices, and maintenance can be easily performed by attaching / detaching or replacing the medium storage unit or the optical information storage device.
- FIG. 1 is an external view showing each embodiment of the optical information storage system and the optical information storage device of the present invention.
- FIG. 2 is a diagram illustrating a hardware structure of the blade device.
- FIG. 3 is a functional block diagram showing the functional structure of the blade.
- FIG. 4 is a diagram showing the internal structure of the magazine.
- FIG. 5 is a diagram showing a structure near the head of the drive.
- FIG. 6 is a flowchart showing a series of processes for reading and writing information from / to the MO disk.
- FIG. 7 is a diagram showing the M ⁇ disk and the sheet when the M ⁇ disk is removed from the magazine.
- FIG. 8 is a diagram showing the inside of a magazine according to the second embodiment of the present invention.
- FIG. 9 is a diagram showing the inside of a magazine according to the third embodiment of the present invention.
- FIG. 10 is a diagram illustrating a hardware structure of a blade device according to the fourth embodiment of the present invention.
- FIG. 1 is an external view showing each embodiment of the optical information storage system and the optical information storage device of the present invention.
- FIG. 1 shows a blade device 10 corresponding to an embodiment of the optical information storage device of the present invention using a magneto-optical (MO) disk as an example of the optical storage medium according to the present invention, and a plurality of (in FIG. An aggregate system 20 corresponding to one embodiment of the optical information storage system of the present invention, in which (10) blade devices 10 are incorporated, is shown.
- the housing 11 of the blade unit 10 has a length exceeding 2.5 times the diameter of the MO disk, a width slightly larger than the diameter of the M ⁇ disk (height in this figure), and a diameter greater than the diameter of the M ⁇ disk.
- the housing 11 corresponds to an example of the housing according to the present invention
- the magazine 12 corresponds to an example of the medium storage unit according to the present invention.
- a plurality of blade devices 10 are mounted in the housing 21 of the collective system 20 so that they can be freely inserted and removed.
- the magazine 12 of each blade device 10 is equipped with the blade device 10 in the housing of the integrated system 20. It is detachable even when inserted into the body 21.
- the collective system 20 is also provided with a control device 22 that controls recording and reproduction of information in each of the plurality of blade devices 10.
- Such a collective system 20 is a compact, large-capacity storage system in which a plurality of blade devices 10 are compactly housed in a housing 21. Also, the capacity can be easily expanded by increasing the number of MO disks and blade devices 10. Maintenance can be easily performed by attaching and detaching and replacing the magazine 12 and the blade device 10.
- FIG. 2 is a diagram illustrating a hardware structure of the blade device.
- the blade device 10 also shown in FIG. 1 includes the above-described magazine 12 and a drive 16 for recording and reproducing information on and from the MO disk 13 in a housing 11.
- a changer 15 for moving the M ⁇ disk 13 between them is provided between them.
- the drive 16 corresponds to an example of an information reproducing unit according to the present invention
- the changer 15 corresponds to an example of a medium moving unit according to the present invention.
- a connector 17a of an interface for transferring data between the blade device 10 and the outside is provided, and the blade device 10 is assembled as shown in FIG.
- the connector 17a is inserted into the housing 21 of the system 20, the connector 17a is joined to the connector of the collective system 20.
- the connector 17a corresponds to an example of the connecting portion according to the present invention.
- FIG. 3 is a functional block diagram showing the functional structure of the blade.
- the blade device 10 includes the magazine 12, the changer 15, and the drive 16, and further corresponds to the control unit 18 for controlling the changer 15 and the drive 16, and the connector 17a shown in FIG. Also, an interface 17 is provided for transferring data between the blade device 10 and the outside overnight.
- the interface 17 is selected from well-known high-speed serial interfaces such as IEEE 1394, USB, and serial ATA, and the detailed description thereof is omitted.
- the drive 16 is provided with a spindle motor 16a for holding and rotating the MO disk 13 and a head 16b for recording and reproducing information by irradiating the MO disk 13 with a laser beam.
- Two heads 16b are provided for each of the first surface (front surface) and the second surface (back surface) of the MO disk.
- the drive 16 also includes a read / write channel 16c for each of the first and second surfaces, and a first-in first-out (FIFO) memory 16d that functions as a buffer.
- the magazine 12 is provided with a FRAMI 4 in which the disk number of the stored MO disk 13 and the address information where the MO disk 13 is stored are stored.
- the control unit 18 When the unique information for designating the MO disk is specified from the outside of the apparatus via a path (not shown) via the interface 17, the control unit 18 is configured based on the information stored in the RAM 14. Then, find the M ⁇ disk 13 indicated by the unique information, and instruct the changer 15 to the found MO disk 13. The changer 15 takes out the M ⁇ disk 13 specified by the control unit 18 from the magazine 12 and loads it into the drive 16.
- the blade device 10 is provided with an access path 19 for directly accessing the FRAM 14 from outside the blade device 10, bypassing the control unit 18. Even when the power is off, the information stored in the FRAM 14 can be externally confirmed via the access path 19.
- the blade device 10 is basically connected to the collective system 20 shown in FIG. 1 as described above.
- FIG. 4 is a diagram showing the internal structure of the magazine 12.
- the magazine 12 also shown in FIGS. 2 and 3 is provided with a plurality of guide projections 12 a for holding a plurality of MO disks 13, and one side of each guide projection 12 a A sheet 40 made of a nonwoven fabric is stuck.
- the M ⁇ disks 13 are stored side by side with a gap between them by arranging them one by one on each guide protrusion.
- One surface (in this example, the back surface) of each MO disk 13 is closed. It is in contact with 40.
- the magazine 12 corresponds to an example of a medium storage unit according to the present invention, and also serves as an example of a cleaning unit according to the present invention.
- the sheet 40 corresponds to an example of the cleaning member according to the present invention, and also corresponds to an example of the sheet according to the present invention.
- FIG. 5 is a diagram showing a structure near the head of the drive.
- the drive 16 also shown in FIGS. 2 and 3 is provided with two heads 16b, and FIG. 5 shows a structure near the two heads 16b.
- the two heads 16b are arranged with an M ⁇ disk 13 held and rotated by a spindle motor 16a, and each head 16b is provided with a laser diode, a light detecting element, and various other elements.
- a moving assembly (carriage) 31 that irradiates the laser beam to the mirror and returns the light reflected by the M ⁇ disk 13 to the fixed assembly 32, and a control unit (not shown) that controls each element in FIG. ). Further, the moving assembly 31 includes a carriage base 33, a rising mirror 34 that reflects laser light, and a condensing lens 35 that condenses laser light on the MO disk 13. It is equipped with a lens actuator 36 that moves the condenser lens 35.
- the fixed assembly 32 has a built-in beam splitter and prism, and the fixed assembly 32 reflects reflected light from the M disk 13 for focus control, track control, and MO. It is split into three lights for signal.
- the light for focus control is used for focus control for keeping the distance between the condenser lens 35 and the M ⁇ disk 13 constant. Since the MO disk 13 is rotated at a high speed by the spindle motor 16a, the distance between the MO disk 13 and the condenser lens 35 is likely to fluctuate. If the distance between the condenser lens 35 and the MO disk 13 deviates from the focusing distance, the laser light condensed by the condenser lens 35 will move to the desired position on the M ⁇ disk 13 Other than that, there is a problem that information cannot be read and written correctly.
- the light for track control is light used for track control for moving and maintaining the position of the laser light focused by the condenser lens 35 to a position for reading and writing information on the MO disk 13. .
- the focus control is an operation of controlling the position of the condenser lens 35 in the height direction
- the track control is an operation of controlling the position of the condenser lens 35 in the lateral direction.
- TES track error
- the M ⁇ ⁇ signal representing information to be read from or written to the MO disk 13 is detected. Based on this MO signal, information recorded on the MO disk 13 is read.
- FIG. 6 is a flowchart showing a series of processing for reading and writing information from and to the MO disk in the blade device of the present embodiment. In the following, a series of processes for cleaning unnecessary objects adhered to the MO disk 13 and then reading and writing information on the MO disk 13 using the mouthpiece of FIG. 6 will be described.
- the MO disk 13 stored in the magazine 12 shown in FIGS. 2 and 4 is taken out of the magazine 12 by the changer 15.
- FIG. 7 is a diagram showing an MO disk and a sheet when the MO disk is taken out of the magazine.
- the MO disk 13 stored in the magazine 12 The surface is in contact with sheet 40.
- the changer 15 moves the MO disk 13 toward the drive 16 while keeping the MO disk 13 and the sheet 40 in contact with each other. At this time, unnecessary substances attached to the surface of the MO disk 13 that has come into contact with the sheet 40 are wiped off (step S1 in FIG. 6).
- the MO disk 13 is transported to the drive 16 as it is, and is mounted on the drive 16.
- the mounted MO disk 13 has been cleaned of unnecessary matter in advance, and the problem of unnecessary matter entering the drive 16 has been prevented.
- the MO disk 13 mounted on the drive 16 is held and rotated by the spindle motor 16a in FIG. .
- the laser light focused by the focusing lens 35 is reflected on the disk, and the reflected light is transmitted from the moving assembly 31 to the fixed assembly 32.
- the transmitted reflected light is split into light for focus control, track control, and light for the MO signal, and the FES, TESS, and MO signals are detected from these lights.
- the detection of the above signal is continuously performed at regular time intervals while the M ⁇ disk 13 is rotating.
- a series of focus control described above is performed using the FES of these signals (step S3 in FIG. 6), and the focus control between the condenser lens 35 and the MO disk 13 in FIG. 5 is performed. Is kept constant.
- the track control described above is performed using the TES of the detected signals (step S4 in FIG. 6), and the center of the track on the MO disk 13 is focused by the condensing lens 35 in FIG.
- the focused light beam is followed.
- step S5 information is read from and written to the MO disk 13 based on the M ⁇ signal detected in that state. Through such a series of operations, information can be correctly read and written to the M ⁇ disk 13.
- the MO disk 13 is a magazine. Unnecessary substances adhering to the MO disk 13 are wiped off each time they are taken out of the gin 12, so there is no need for an explicit cleaning operation or a complicated mechanism, and appropriate cleaning is performed with a simple mechanism. be able to.
- M ⁇ disk 13 may be stored in magazine 12 at any time.
- the cleaning disk in the magazine 12 By storing the cleaning disk in the magazine 12 in this way, the head 16b can be cleaned directly by cleaning the head 16b directly, and the cleaning disk can be used for cleaning. Since the dirt attached to the disc is removed by the sheet 40, the cleaning disc can be used repeatedly.
- the second embodiment has the same configuration as that of the first embodiment shown in FIG. 2, but differs from the first embodiment in the position of the sheet attached inside the magazine.
- FIG. 8 is a diagram showing the inside of a magazine according to the second embodiment of the present invention. Unlike the first embodiment shown in FIG. 4, the magazine 12 of the second embodiment shown in FIG. 8 has sheets attached not only on one side of the guide projections 12a but also on both sides of the guide projections 12a. It is attached.
- the third embodiment has a configuration similar to the configuration of the first embodiment shown in FIG. However, the position of the sheet attached inside the magazine is different from the first embodiment and the second embodiment.
- FIG. 9 is a diagram showing the inside of a magazine according to the third embodiment of the present invention. Unlike the first embodiment shown in FIG. 4 and the second embodiment shown in FIG. 8, the magazine 12 of the third embodiment shown in FIG. 9 has a sheet having substantially the same thickness as the guide projections 12a. 4 2 is attached so as to be connected to the guide projection 1 2 a.
- the magazine 12 of this embodiment is applied in place of the magazine 12 shown in FIGS. 2 and 4.
- the MO disk 13 When moving the upper surface of the MO disk 13 into the magazine 12 by moving the upper surface into contact with the sheet 42, the lower surface of the MO disk 13 is moved by contacting the lower surface of the MO disk 13 with the sheet 42.
- the cleaning member can clean both sides of the MO disk 13.
- the cleaning member is attached to the inside of the magazine, but in the present embodiment, the cleaning member is mounted on the changer.
- FIG. 10 is a diagram illustrating a hardware structure of a blade device according to the fourth embodiment of the present invention.
- the blade device 10 of the present embodiment shown in FIG. 10 has substantially the same configuration as the blade device of the first embodiment shown in FIG. 2, but the blade device 10 of the present embodiment has a changer 15.
- a brush 50 is provided on the top.
- the changer 15 corresponds to an example of the medium moving section according to the present invention, and also serves as an example of the cleaning section according to the present invention.
- the brush 50 corresponds to an example of the cleaning member according to the present invention, and also corresponds to an example of the brush according to the present invention.
- the brush 50 is fixed on the changer 15 at a position where it contacts the MO disk 13 when the MO disk 13 is removed from the magazine 12.
- the changer 15 takes out the M ⁇ disk 13 from the magazine 12, the changer 15 moves the M ⁇ disk 13 in the horizontal direction while keeping the MO disk 13 and the brush 50 in contact with each other. Carry to 6.
- brush 50 changes to MO disk 13 The attached dust is swept away, preventing the dust from entering drive 16.
- a changer may be provided with a cleaning member.
- the MO disk is shown as one type of the optical storage medium according to the present invention, but the optical storage medium according to the present invention may be a DVD or the like.
- the optical information storage device of the present invention may be configured to access only one side of the optical storage medium. Good.
- the cleaning member according to the present invention may be, for example, a sponge.
- the cleaning unit in the optical information storage device may include an air ejector that ejects clean air, and may blow off unnecessary objects on the optical storage medium.
Landscapes
- Automatic Disk Changers (AREA)
- Optical Head (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003241676A AU2003241676A1 (en) | 2003-05-30 | 2003-05-30 | Optical information storage device and optical information storage system |
| JP2005500229A JPWO2004107337A1 (ja) | 2003-05-30 | 2003-05-30 | 光情報記憶装置および光情報記憶システム |
| PCT/JP2003/006863 WO2004107337A1 (ja) | 2003-05-30 | 2003-05-30 | 光情報記憶装置および光情報記憶システム |
| US11/093,780 US20050169125A1 (en) | 2003-05-30 | 2005-03-30 | Optical information storage apparatus and optical information storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2003/006863 WO2004107337A1 (ja) | 2003-05-30 | 2003-05-30 | 光情報記憶装置および光情報記憶システム |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/093,780 Continuation US20050169125A1 (en) | 2003-05-30 | 2005-03-30 | Optical information storage apparatus and optical information storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004107337A1 true WO2004107337A1 (ja) | 2004-12-09 |
Family
ID=33485802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/006863 Ceased WO2004107337A1 (ja) | 2003-05-30 | 2003-05-30 | 光情報記憶装置および光情報記憶システム |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2004107337A1 (ja) |
| AU (1) | AU2003241676A1 (ja) |
| WO (1) | WO2004107337A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010067443A1 (ja) * | 2008-12-11 | 2010-06-17 | 富士通株式会社 | 情報記憶装置および清掃機 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1145489A (ja) * | 1997-07-25 | 1999-02-16 | Nec Yonezawa Ltd | 記録媒体クリーニング機構内蔵の集合型記憶装置 |
| US6006308A (en) * | 1997-03-14 | 1999-12-21 | Hitachi, Ltd. | Removable library media system utilizing redundant data storage and error detection and correction |
| US20020024895A1 (en) * | 2000-07-31 | 2002-02-28 | Sony Corporation | Disc support plate and disc recording and/or reproducing device |
-
2003
- 2003-05-30 WO PCT/JP2003/006863 patent/WO2004107337A1/ja not_active Ceased
- 2003-05-30 AU AU2003241676A patent/AU2003241676A1/en not_active Abandoned
- 2003-05-30 JP JP2005500229A patent/JPWO2004107337A1/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6006308A (en) * | 1997-03-14 | 1999-12-21 | Hitachi, Ltd. | Removable library media system utilizing redundant data storage and error detection and correction |
| JPH1145489A (ja) * | 1997-07-25 | 1999-02-16 | Nec Yonezawa Ltd | 記録媒体クリーニング機構内蔵の集合型記憶装置 |
| US20020024895A1 (en) * | 2000-07-31 | 2002-02-28 | Sony Corporation | Disc support plate and disc recording and/or reproducing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010067443A1 (ja) * | 2008-12-11 | 2010-06-17 | 富士通株式会社 | 情報記憶装置および清掃機 |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003241676A1 (en) | 2005-01-21 |
| JPWO2004107337A1 (ja) | 2006-07-20 |
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