公开(公告)号：US20230052640A1

公开(公告)日：2023-02-16

申请号：US17400170

申请日：2021-08-12

Applicant: International Business Machines Corporation

Inventor： Tsuyoshi Miyamura ,  Noriko Yamamoto ,  Atsushi Abe ,  Shinsuke Mitsuma ,  Hiroshi Itagaki ,  Tohru Hasegawa

IPC: G11B15/06 ,  G11B15/093

Abstract: In an approach to improving write performance by enabling host data transfer immediately after a reposition command, responsive to receiving on a tape drive a reposition command from a host, a ready response is returned to the host. Write data from the host is accumulated in a write buffer, where the write data is accumulated in the write buffer while simultaneously moving a tape media in the tape drive to a target location. The write data from the write buffer is written to the tape media immediately after the target location is reached on the tape drive.

公开(公告)号：US10276204B1

公开(公告)日：2019-04-30

申请号：US15961682

申请日：2018-04-24

Applicant: International Business Machines Corporation

Inventor： Kevin B. Judd ,  Ernest S. Gale ,  Randy C. Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta ,  Pamela R. Nylander-Hill ,  Tsuyoshi Miyamura

IPC: G11B15/093 ,  G11B15/43 ,  G11B5/55

Abstract: A tape drive-implemented method, according to one embodiment, includes: detecting a read error, determining whether a current tension setting of the magnetic tape is accurate, determining whether the read error is part of an error burst in response to determining that the current tension setting of the magnetic tape is accurate, sending instructions to perform a first re-read attempt in response to determining that the read error is not part of an error burst, determining whether the first re-read attempt was performed successfully, selecting a range of tension settings in response to determining that the first re-read attempt was not performed successfully, selecting a range of lateral offsets, sending instructions to apply each unique combination of tension settings and lateral offsets, for each of the unique combinations applied, sending instructions to perform a second phase re-read attempt, and determining whether the second phase re-read attempt was performed successfully.

公开(公告)号：US20160125909A1

公开(公告)日：2016-05-05

申请号：US14896350

申请日：2013-06-24

Applicant: HEWLETT PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Donald J Fasen ,  Vernon L. Knowles

IPC: G11B15/093 ,  G11B5/008 ,  G11B15/52

CPC classification number: G11B15/43 ,  G11B15/093 ,  G11B15/46 ,  G11B15/54

Abstract: A tension feedback signal is generated to reduce tension variation on a tape occurring at a reel frequency. Tension variation information may be obtained and used to generate the tension feedback signal. The tension feedback signal may be combined with a constant tension preset signal. The combined signal may be used to drive a tape reel at a tape reel speed adjusted according to the combined signal.

Abstract translation: 产生张力反馈信号以减少在卷轴频率处出现的带上的张力变化。 可以获得张力变化信息并用于产生张力反馈信号。 张力反馈信号可以与恒定张力预设信号组合。 组合信号可以用于以根据组合信号调整的磁带卷轴速度驱动磁带卷盘。

公开(公告)号：US20150146321A1

公开(公告)日：2015-05-28

申请号：US14548229

申请日：2014-11-19

Applicant: International Business Machines Corporation

Inventor： Shinobu Fujihara ,  Yutaka Oishi

IPC: G11B15/093

CPC classification number: G11B15/087 ,  G11B5/00817 ,  G11B5/09 ,  G11B15/026 ,  G11B15/093 ,  G11B20/10 ,  G11B27/00 ,  G11B27/107 ,  G11B2220/93

Abstract: A method according to another embodiment includes writing data on a tape medium in a direction from a first end toward a second end of the tape medium using a tape recording apparatus. The tape recording apparatus includes a magnetic head and is configured to record data on tape media. The method further includes wrap-turning the running direction of the tape medium before reaching the second end and writing a first portion of data remaining to be written when the data remaining to be written is smaller than a volume of the data to be written in one running of the tape medium so that an end of the data is written at a position close to the first end, and writing a second portion of data remaining to be written toward the first end.

Abstract translation: 根据另一实施例的方法包括使用磁带记录装置在从磁带介质的第一端到第二端的方向上在磁带介质上写入数据。 磁带记录装置包括磁头，并被配置为在磁带介质上记录数据。 该方法还包括在到达第二端之前卷绕磁带介质的运行方向，并且当剩余待写入的数据小于要写入的数据的卷时写入待写入的剩余数据的第一部分 磁带介质的运行，使得数据的结束被写入靠近第一端的位置，并且写入剩余的待写入的数据的第二部分朝向第一端。

公开(公告)号：US20050161545A1

公开(公告)日：2005-07-28

申请号：US10765789

申请日：2004-01-26

Applicant: Nhan Bui ,  Junichi Fukuda ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

Inventor： Nhan Bui ,  Junichi Fukuda ,  Randy Inch ,  Eiji Ogura ,  Kazuhiro Tsuruta

IPC: G11B15/093

CPC classification number: G11B15/093

Abstract: Disclosed are a system, a method, and an article of manufacture to provide for the detection and compensation of tape breakage in a tape drive. The invention operates by simultaneously monitoring the tape reel rotation direction and the ratio of rotation between the tape reels. If the rotation direction is not the same for both reels, then tape breakage is indicated and reel rotation ceases. Tape breakage is also detected if the tape reel angular rotation ratio between the supply and take up reels is not within a specified tape reel ratio range. The tape reel angular rotation ratio is detected by simultaneously measuring the angular rotation of each tape reel in a specified time period and then calculating the ratio. The present invention detects the tape reel angular rotation ratio and if tape reel angular rotation ratio is outside of the specified tape reel ratio range, tape breakage is indicated and reel rotation ceases.

Abstract translation: 公开了一种用于提供磁带驱动器中的磁带破损的检测和补偿的系统，方法和制品。 本发明通过同时监测磁带卷轴的旋转方向和磁带盘之间的旋转比来操作。 如果两个卷轴的旋转方向不一致，则表示带子断裂，并且卷轴旋转停止。 如果供纸卷取卷轴之间的磁带卷轴角度旋转比不在指定的磁带卷盘比范围内，则也会检测到磁带断线。 通过在规定的时间段内同时测量每个磁带卷轴的角度旋转，然后计算该比率来检测磁带卷轴角度旋转比。 本发明检测磁带卷轴的角度旋转比，如果磁带卷轴角度旋转比在指定的磁带卷盘比例范围之外，则表示磁带破损并且卷轴旋转停止。

公开(公告)号：US06873486B2

公开(公告)日：2005-03-29

申请号：US10459568

申请日：2003-06-12

Applicant: Seiji Tateishi

Inventor： Seiji Tateishi

IPC: G11B15/02 ,  G11B15/093 ,  G11B15/60 ,  G11B17/00 ,  G11B27/36

CPC classification number: G11B15/607 ,  G11B15/602

Abstract: To measure a lateral shift of running magnetic tape caused by a lateral movement of the magnetic tape which occurs while the magnetic tape is running, a fixed write head H1 of a measurement apparatus 10 magnetizes part of the running magnetic tape MT in a section of the apparatus 10 where the magnetic tape MT is free from restriction on lateral movement; a pair of guides 14, 14 in a tape guide unit of the apparatus 10 is located downstream of the fixed write head H1 to restrict the lateral movement of the magnetic tape MT; and a fixed read head H2 reads information recorded on the magnetic tape MT in the tape guide unit.

Abstract translation: 为了测量在磁带运行时由磁带的横向移动引起的运行磁带的横向偏移，测量装置10的固定写入头H1在部分磁带 装置10，其中磁带MT不限制横向移动; 设备10的带引导单元中的一对引导件14,14位于固定写入头H1的下游，以限制磁带MT的横向移动; 并且固定的读取头H2读取记录在磁带引导单元中的磁带MT上的信息。

公开(公告)号：US06158682A

公开(公告)日：2000-12-12

申请号：US512326

申请日：2000-02-24

Applicant: Masayuki Kijima ,  Hideo Nishijima ,  Kaneyuki Okamoto ,  Takeo Ohkouchi ,  Yukinobu Tada

Inventor： Masayuki Kijima ,  Hideo Nishijima ,  Kaneyuki Okamoto ,  Takeo Ohkouchi ,  Yukinobu Tada

IPC: G11B15/093 ,  G11B15/22 ,  G11B15/46 ,  G11B15/48 ,  G11B15/54 ,  B65H59/38

CPC classification number: G11B15/093 ,  G11B15/22 ,  G11B15/46 ,  G11B15/48 ,  G11B15/54

Abstract: On the occasion of stopping the tape running at a high speed, a winding radius of the tape supply reel is detected to set the tape deceleration rate (a) on the basis of the detected winding radius of the supply reel. After the tape running speed is decelerated up to the allowable speed VL in the predetermined deceleration rate (a), the tape is stopped by effectuating the brake. Thereby, the tape can be driven at the speed higher than the allowable speed VL without generating any damage, enabling reduction of time required for the fast-forward/rewind operation. Moreover, application flexibility is improved by providing a couple of tape running modes at the first high speed V1 which is higher than the allowable speed VL and the second high speed V2 which is lower than the allowable speed VL. In addition, running of the tape can be ceased within the predetermined time t from the input of the stop command signal by specifying the maximum speed Vmax depending on the preset deceleration rate (a) and limiting the tape running speed with the maximum speed Vmax.

Abstract translation: 在停止磁带高速运行的情况下，检测带供带盘的卷绕半径，以根据检测到的供带盘的卷绕半径设定带减速度（a）。 在磁带运行速度以预定减速率（a）减速到允许速度VL之后，通过实施制动来停止磁带。 因此，可以以高于允许速度VL的速度驱动带子，而不产生任何损坏，从而能够减少快进/快退操作所需的时间。 此外，通过在高于允许速度VL的第一高速V1和低于容许速度VL的第二高速V2提供一对带运行模式来提高应用灵活性。 此外，通过根据预设减速度（a）指定最大速度Vmax，以最大速度Vmax限制带运行速度，可以在从停止指令信号的输入起的预定时间t内停止带的运行。

公开(公告)号：US6128156A

公开(公告)日：2000-10-03

申请号：US913975

申请日：1998-01-26

Applicant: Ryoji Takamatsu ,  Takeo Kondo

Inventor： Ryoji Takamatsu ,  Takeo Kondo

IPC: G11B15/093 ,  G11B15/18 ,  G11B15/44

CPC classification number: G11B15/444 ,  G11B15/093 ,  G11B15/1883

Abstract: A tape-like recording medium travelling and driving apparatus includes a pair of flywheels respectively rotated and driven, a first reel turntable, and a second reel turntable, a first reel gear unit provided on the first reel turntable and rotated together with the first reel turntable, a second reel gear unit provided on the second reel turntable and rotated together with the second reel turntable, and a transmission mechanism for, transmitting a rotational drive force from any one flywheel by engaging with one of the first and second reel gear units of the pair of flywheels. The transmission mechanism comprises a mid gear to which the rotational drive force is transmitted from any one flywheel of the pair of flywheels and a rotation detecting mechanism for detecting rotation of the mid gear.

Abstract translation: PCT No.PCT / JP97 / 00106 Sec。 371日期1998年1月26日 102（e）日期1998年1月26日PCT 1997年1月20日PCT PCT。 公开号WO97 / 26653 日期1997年7月24日一种带状记录介质行进和驱动装置包括分别旋转和驱动的一对飞轮，第一卷轴转盘和第二卷轴转盘，设置在第一卷轴转台上并一起旋转的第一卷轴齿轮单元 与第一卷轴转盘相连，设置在第二卷轴转台上并与第二卷轴转台一起旋转的第二卷轴齿轮单元，以及用于通过与第一和第二卷轴转盘中的一个传动来自任何一个飞轮的旋转驱动力的传动机构 一对飞轮的卷轴齿轮单元。 传动机构包括一个中间齿轮，旋转驱动力从一对飞轮的任一个飞轮传递到该中间齿轮，以及用于检测中间齿轮的旋转的旋转检测机构。

公开(公告)号：US6021016A

公开(公告)日：2000-02-01

申请号：US964146

申请日：1997-11-06

Applicant: Kouji Minabe ,  Hideo Nishijima ,  Kouji Kaniwa ,  Hiroya Abe ,  Yoshio Narita ,  Teruo Hoshi

Inventor： Kouji Minabe ,  Hideo Nishijima ,  Kouji Kaniwa ,  Hiroya Abe ,  Yoshio Narita ,  Teruo Hoshi

IPC: G11B15/06 ,  G11B15/08 ,  G11B15/087 ,  G11B15/093 ,  G11B15/48

CPC classification number: G11B15/48 ,  G11B15/06 ,  G11B15/08 ,  G11B15/087

Abstract: A magnetic recording and reproducing apparatus arranged to use a magnetic tape. The apparatus operates to derive the current taken-up position of the magnetic tape from the signals that are proportional to the rotation frequencies of a capstan motor, a supply reel and a take-up reel. Only when the taken-up position is near the tape end, the apparatus activates LEDs (light emitting elements) for sensing the tape end and photo-transistors (light receiving elements), for sensing the tape end.

公开(公告)号：US5699206A

公开(公告)日：1997-12-16

申请号：US540219

申请日：1995-10-06

Applicant: Kouji Minabe ,  Hideo Nishijima ,  Kouji Kaniwa ,  Hiroya Abe ,  Yoshio Narita ,  Teruo Hoshi

Inventor： Kouji Minabe ,  Hideo Nishijima ,  Kouji Kaniwa ,  Hiroya Abe ,  Yoshio Narita ,  Teruo Hoshi

IPC: G11B15/06 ,  G11B15/08 ,  G11B15/087 ,  G11B15/093 ,  G11B15/48

CPC classification number: G11B15/48 ,  G11B15/06 ,  G11B15/08 ,  G11B15/087

Abstract: A magnetic recording and reproducing apparatus arranged to use a magnetic tape. The apparatus operates to derive the current taken-up position of the magnetic tape from the signals that are proportional to the rotation frequencies of a capstan motor, a supply reel and a take-up reel. Only when the taken-up position is near the tape end, the apparatus activates LEDs (light emitting elements) for sensing the tape end and photo-transistors (light receiving elements), for sensing the tape end.

Abstract translation: 布置成使用磁带的磁记录和重放装置。 该装置用于从与主导轴马达，供带盘和卷取卷轴的旋转频率成比例的信号导出磁带的当前占用位置。 仅当卷取位置靠近磁带末端时，该装置激活用于感测磁带端的LED（发光元件）和光电晶体管（光接收元件），用于感测磁带端。