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公开(公告)号：US20240212708A1
公开(公告)日：2024-06-27
申请号：US18599062
申请日：2024-03-07
申请人： FUJIFILM CORPORATION
发明人： Toru NAKAO , Tetsuya KANEKO , Yoichi AKANO
CPC分类号： G11B5/5928 , G11B5/78 , G11B5/84 , G11B15/43 , G11B15/602
摘要： A plurality of servo patterns are recorded in a magnetic tape along a longitudinal direction. The servo pattern is at least one linear magnetization region pair. The linear magnetization region pair includes a first linear magnetization region, which is linearly magnetized, and a second linear magnetization region, which is linearly magnetized. The first linear magnetization region and the second linear magnetization region are inclined in opposite directions with respect to a first imaginary straight line along a width direction of the magnetic tape. The first linear magnetization region has a steeper inclined angle with respect to the first imaginary straight line than the second linear magnetization region.
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公开(公告)号：US11222665B2
公开(公告)日：2022-01-11
申请号：US16762776
申请日：2018-11-09
申请人： Sony Corporation
发明人： Tetsuo Endo
摘要： A servo writer includes a writing head that writes a servo signal on a long magnetic tape that is traveling and at least two first guide rollers that guide the travel of the magnetic tape, in which the at least two first guide rollers on which a spiral groove is provided have a circumferential surface that has contact with the traveling magnetic tape, tensile forces act on the magnetic tape from the at least two first guide rollers in a width direction of the traveling magnetic tape, and the tensile forces that act on the magnetic tape from the at least two first guide rollers cancel each other.
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公开(公告)号：US20220005509A1
公开(公告)日：2022-01-06
申请号：US17448168
申请日：2021-09-20
发明人： Miki NAMIHISA , Kouki UEFUNE , Toshio TAKAHASHI
摘要： The present disclosure generally relates to a tape embedded drive having a plurality of feedthrough connectors. The feedthrough connectors are symmetrically placed within the tape embedded drive such that regardless of whether an even or odd number of feedthrough connectors are present, the feedthrough connectors are symmetrical about a centerline of the tape embedded drive. In such a layout, the tape embedded drive is more stable due to symmetrical mass balance. Additionally, the tape embedded drive is more cost effective to produce.
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4.发明授权公开(公告)号：US11011205B2
公开(公告)日：2021-05-18
申请号：US16762341
申请日：2018-11-09
申请人： Sony Corporation
发明人： Tetsuo Endo
摘要： A servo writer includes a writing head that writes a servo signal on a long magnetic tape that is traveling, a guide roller that is provided on an upstream side of a travel path with respect to the writing head and guides the traveling magnetic tape, and a polishing unit that is provided on an upstream side of the travel path with respect to the guide roller and polishes at least one edge of the traveling magnetic tape, in which the guide roller includes a flange that regulates the travel of the magnetic tape.
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公开(公告)号：US10854236B1
公开(公告)日：2020-12-01
申请号：US16567849
申请日：2019-09-11
发明人： David Harper , Nhan Xuan Bui
摘要： At least one jack screw from a tape deck base may be removed. The tape deck base may be below a rigid support base that includes a rigid support shaft in the center of the rigid support base. A piezoelectric stack may be inserted where the at least one jack screw was removed from the tape deck base. The piezoelectric stack may tilt a tape guide roller bearing in a skew direction to improve the motion of tape in a tape path.
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公开(公告)号：US10825475B1
公开(公告)日：2020-11-03
申请号：US16655894
申请日：2019-10-17
申请人： DELL PRODUCTS, LP
发明人： Jeffrey J. Demoss
摘要： A hard disk drive includes a disk having a servo region and data tracks. The servo region has servo data for formatting some of the data tracks for high capacity storage and others of the data tracks for low capacity storage. A head writes user data to the high capacity tracks in response to vibration less than a threshold value, and otherwise writes the user data to the low capacity tracks.
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公开(公告)号：US10679662B2
公开(公告)日：2020-06-09
申请号：US16591684
申请日：2019-10-03
发明人： Nhan X. Bui , Kevin B. Judd , Randy C. Inch , Mark A. Lantz , David H. F. Harper
摘要： A determination is made whether read/write is enabled within the tape drive storage unit. In response to determining that read/write is enabled, a determination is made whether a temperature within the tape drive storage unit exceeds a threshold value. In response to determining that the temperature within the tape drive storage unit exceeds the threshold value, a determination is made of a direction of travel of a tape media within the tape drive storage unit. In response to determining that the direction of travel is a forward direction, a first cooling device is powered on. The first cooling device lowers the temperature of a first guide roller and the tape media coming off a first tape storage reel prior to the tape media passing by a read/write head within the tape drive storage unit.
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公开(公告)号：US10679651B2
公开(公告)日：2020-06-09
申请号：US16297376
申请日：2019-03-08
发明人： Robert G. Biskeborn
IPC分类号： G11B5/40 , G11B5/255 , G11B5/187 , G11B5/39 , G11B15/60 , G11B5/58 , G11B15/62 , G11B15/43 , G11B5/008 , G11B5/31 , G11B5/48
摘要： An apparatus includes a module having a tape bearing surface, a first edge, and a second edge, where a first tape tenting region of the tape bearing surface extends from the first edge along the tape bearing surface toward the second edge. A guide is positioned relative to the first edge for inducing tenting of a moving magnetic recording tape and to create a point of inflection of the moving magnetic recording tape at a location above the tape bearing surface that is about midway between a peak of the tenting and a point of closest approach of the moving magnetic recording tape to the tape bearing surface. A sensor is located in a thin film region of the module. The sensor has a free layer. The location of the point of inflection of the moving magnetic recording tape is between the free layer and the second edge.
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公开(公告)号：US20200126587A1
公开(公告)日：2020-04-23
申请号：US16450844
申请日：2019-06-24
摘要： A tape drive-implemented method, according to one embodiment, includes: using formatting information which corresponds to a magnetic tape loaded in the tape drive to identify wraps on the magnetic tape. Identifying wraps on the magnetic tape includes: identifying an outermost wrap on the magnetic tape on a first side of the magnetic tape, and identifying an outermost wrap on the magnetic tape on a second side of the magnetic tape. A procedure is also performed for each of the wraps identified using the formatting information. Performing the procedure for a given one of the wraps includes: sending one or more instructions to position a magnetic head of the tape drive over the given wrap, and collecting PES information which corresponds to the given wrap.
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公开(公告)号：US10580450B2
公开(公告)日：2020-03-03
申请号：US16130822
申请日：2018-09-13
发明人： Robert G. Biskeborn , Calvin S. Lo
摘要： An apparatus, according to one embodiment, includes a module having a tape bearing surface, an array of magnetic transducers, and a channel in the tape bearing surface. The channel has a longitudinal axis oriented about parallel to a longitudinal axis of the array of magnetic transducers for inducing tenting of a moving magnetic recording tape above the array of magnetic transducers. Moreover, the channel has a shape with a middle section of similar recession therealong between straight opposite ends.
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