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公开(公告)号：US20240221786A1
公开(公告)日：2024-07-04
申请号：US18222964
申请日：2023-07-17
发明人： Robert P. Ryan , James N. Malina
IPC分类号： G11B17/028
CPC分类号： G11B17/028
摘要： A disk media retaining and exchange system configured to accept a disk media assembly including a disk and a ferromagnetic material coupled therewith, includes a spindle motor assembly with a spindle motor and a permanent magnet retainer coupled therewith, whereby the system is configured to retain the disk on the spindle motor by a magnetic force between the ferromagnetic material of the disk media assembly and the permanent magnet retainer of the spindle motor assembly. An electromagnet disk exchange tool may be employed, configured such that energization of coils in close proximity to the disk media assembly overcomes the magnetic force to release the disk media assembly from retention with the spindle motor assembly, and generates another magnetic force between the ferromagnetic material of the disk media assembly and at least one electromagnet of the exchange tool to remove the disk away from the spindle motor for disk exchange.
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公开(公告)号：US11756583B2
公开(公告)日：2023-09-12
申请号：US17465848
申请日：2021-09-03
发明人： Toshiki Hirano
CPC分类号： G11B17/028 , G11B17/0282 , G11B17/0284 , G11B19/2009 , G11B5/5526 , G11B21/22 , G11B33/0461 , G11B33/1446
摘要： A removable disk clamp assembly for mounting disk media on a motor-driven spindle of a magnetic read-write device includes a disk clamp and a mechanism for generating a predetermined force to press the disk media to a flange of the spindle such that the predetermined force can be repeatedly overcome by an applied counterforce to remove the disk clamp from engagement with a hub of the spindle. Such a mechanism may include a spring-loaded removable disk clamp assembly or a magnetic removable disk clamp assembly, and whereby a vacuum-driven chuck may be employed for disk and clamp handling purposes, all of which are suitable for implementation and use in a read-write device configured for use in an archival data storage system library such as in a cleanroom storage system.
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公开(公告)号：US20210319807A1
公开(公告)日：2021-10-14
申请号：US17035695
申请日：2020-09-29
发明人： Li ZHANG , Meng NING , Ziqiang ZHANG , Weixi YOU , Shijie BAI
IPC分类号： G11B17/028 , G11B33/04 , G11B7/0045 , G11B17/035 , G11B17/049 , B65G1/04
摘要： Disclosed is a rotary cage type optical disk library storage system capable of replacing optical disks. The device includes a case, a burning device, and a rotary cage storage device. The burning device is fixed in the case and includes a burn cabinet, a disk feeding mechanism and an internal gripping mechanism. Multiple optical disk cartridges are arranged in layers from top to bottom in the burning cabinet. The disk feeding mechanism is located just below the burning cabinet. The internal gripping mechanism can move up and down and grab and place the optical disk. The rotary cage storage device and the burning device are fixed in the case side by side. The rotary cage storage device includes a rotary cage mechanism, a rotary cage cassette placed in the rotary cage mechanism for storing optical disks, and a belt drive mechanism driving the rotary cage mechanism to rotate.
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公开(公告)号：US10650857B2
公开(公告)日：2020-05-12
申请号：US16287078
申请日：2019-02-27
发明人： Yutaka Horiguchi
IPC分类号： G11B20/12 , G11B19/04 , G11B17/028
摘要： According to one embodiment, a magnetic disk device includes a disk medium which has a first region, a second region, and a redundant third region, and a control circuitry. The first region is a region to which first data received from a host is written. The second region is a region to which the first data is temporarily written before the first data is written to the first region. The control circuitry executes defect detection to the first region. Upon detecting a defect, the control circuitry substitutes a first location having the defect in the first region with a second location in the third region. Depending on a total size of free regions of the third region, the control circuitry reallocates a fourth region from the second region to the third region. The fourth region is part or all of the second region.
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公开(公告)号：US20200075054A1
公开(公告)日：2020-03-05
申请号：US16287078
申请日：2019-02-27
发明人： Yutaka Horiguchi
IPC分类号： G11B19/04 , G11B17/028
摘要： According to one embodiment, a magnetic disk device includes a disk medium which has a first region, a second region, and a redundant third region, and a control circuitry. The first region is a region to which first data received from a host is written. The second region is a region to which the first data is temporarily written before the first data is written to the first region. The control circuitry executes defect detection to the first region. Upon detecting a defect, the control circuitry substitutes a first location having the defect in the first region with a second location in the third region. Depending on a total size of free regions of the third region, the control circuitry reallocates a fourth region from the second region to the third region. The fourth region is part or all of the second region.
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公开(公告)号：US10460758B2
公开(公告)日：2019-10-29
申请号：US15916451
申请日：2018-03-09
发明人： Yap Pow Ming , Su Ying , Cho Kok Liang , Lee Chee Xian , Lim Jun Long
IPC分类号： G11B17/038 , G11B17/028 , G11B17/022 , G11B17/02 , G11B19/20
摘要： A disk drive assembly including a spindle motor including a hub and a central axis, at least one disk disk having a central opening positioned on the hub and concentric about the central axis, an annular ring member concentric about the central axis, wherein a first portion of the annular ring member is in contact with an outer surface of a top disk of the disk stack, and a disk clamp ring screw adjacent to and in contact with a second portion of the annular ring member, wherein the disk clamp ring screw provides a clamping force to at least partially compress the annular ring member toward the top disk of the disk stack.
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公开(公告)号：US20190279677A1
公开(公告)日：2019-09-12
申请号：US15916451
申请日：2018-03-09
发明人： Yap Pow Ming , Su Ying , Cho Kok Liang , Lee Chee Xian , Lim Jun Long
IPC分类号： G11B17/028
摘要： A disk drive assembly including a spindle motor including a hub and a central axis, at least one disk disk having a central opening positioned on the hub and concentric about the central axis, an annular ring member concentric about the central axis, wherein a first portion of the annular ring member is in contact with an outer surface of a top disk of the disk stack, and a disk clamp ring screw adjacent to and in contact with a second portion of the annular ring member, wherein the disk clamp ring screw provides a clamping force to at least partially compress the annular ring member toward the top disk of the disk stack.
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公开(公告)号：US10388317B2
公开(公告)日：2019-08-20
申请号：US16239705
申请日：2019-01-04
发明人： Jung-Fang Chang , Cheng-Wen Huang
IPC分类号： G11B17/02 , G11B17/028 , G11B17/08
摘要： A disc pick-and-place device including a disc pick-and-place body and a quantity sensing unit is provided. The disc pick-and-place body is for clamping and unloading at least one disc. The quantity sensing unit is disposed on the disc pick-and-place body for sensing the quantity of the at least one disc clamped on the disc pick-and-place body. The quantity sensing unit includes a movable piece and an optical distance measuring device. The movable piece leans on at least one disc and moves as the quantity of the at least one disc changes. The optical distance measuring device is for emitting a beam and receiving the beam reflected from the movable piece to detect the quantity of the at least one disc.
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公开(公告)号：US20190228802A1
公开(公告)日：2019-07-25
申请号：US15947974
申请日：2018-04-09
IPC分类号： G11B17/028 , G11B33/06
CPC分类号： G11B17/0286 , G11B33/06
摘要： A disc drive has an opening portion for inserting a disc. The disc drive includes a driving unit, a moving member, a traverse, a disc positioning structure and a restoring structure. When the disc is intended to be clamped on the traverse, the driving unit drives the moving member to move the traverse to a disc holding position to clamp the disc; and the moving member moves the disc positioning structure to a disc release position so that the disc positioning structure does not contact the disc. When the disc is intended to be released from the traverse, the driving unit drives the moving member to move the traverse to a disc unloading position to unload the disc; and the restoring structure moves the disc positioning structure to a disc loading position to support the disc.
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公开(公告)号：US20190206435A1
公开(公告)日：2019-07-04
申请号：US16294196
申请日：2019-03-06
发明人： Shigehiko IWAMA , Makoto ITONAGA , Yuichi HASEGAWA , Koji TSUJITA , Masayuki ONO , Katsue HORIKOSHI
IPC分类号： G11B17/028
CPC分类号： G11B17/0284 , G11B17/028 , H01F7/02
摘要： A magnet structure includes first and second magnet units. The first magnet unit is provided with a first magnet fixing section that includes a first surface and a first magnet having a first polarity on the first surface's side. The second magnet unit is provided with a second magnet fixing section that includes a second surface and a second magnet having a second polarity on the second surface's side, the second polarity being an opposite polarity to the first polarity. The first and second surfaces are located next to one another on the same plane to form a magnetic attachment surface which is magnetically attached to a magnetically-attached object. The second magnet unit is supported by the first magnet unit so as to move in a predetermined range.
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