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1. 发明申请

WO2018235011A1 TAPE TRANSPORT CONTROL WITH SUPPRESSION OF TIME-VARYING TENSION DISTURBANCES 审中-公开
公开(公告)号：WO2018235011A1
公开(公告)日：2018-12-27
申请号：PCT/IB2018/054539
申请日：2018-06-20
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM (CHINA) INVESTMENT COMPANY LTD. , IBM DEUTSCHLAND GMBH
发明人： PANTAZI, Angeliki , CHERUBIN, Giovanni , TAKETOMI, Tomoko , BUI, Nhan Xuan , LANTZ, Mark Alfred
IPC分类号： G11B15/43
摘要： Embodiments of the present invention provide a tape transport control system with enhanced regulation of tape tension and velocity over the entire length of the tape. The tape transport control system comprises of circuitry adapted to output and circuitry adapted to receive one or more signals representing a tape velocity, at least one radius of either the first tape reel or the second tape reel, and a tape tension, and based on the received signals, generate at least one control signal to control at least one of the first reel motor or the second reel motor so as to reduce a tension disturbance at a minimum, one frequency corresponding to a time-varying reel-rotation frequency, based on controller parameters that depend on the tape velocity and on the at least one radius of either the first tape reel or the second tape reel.

2. 发明申请

WO2014083508A2 SERVO PATTERN OF A TAPE STORAGE MEDIUM 审中-公开
标题翻译：磁带存储介质的伺服模式
公开(公告)号：WO2014083508A2
公开(公告)日：2014-06-05
申请号：PCT/IB2013/060436
申请日：2013-11-27
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM RESEARCH GMBH
发明人： CHERUBINI, Giovanni , ENGELEN, Johan B. C. , FURRER, Simeon , JELITTO, Jens , LANTZ, Mark Alfred
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： A tape storage medium comprises at least one servo band (SB) along a longitudinal extension (x) of the tape storage medium (TP) for supporting to determine positional information. The servo band (SB) comprises a first servo subband (SB1) extending along the longitudinal extension (x) of the tape storage medium (1) and a second servo subband (SB2) extending along the longitudinal extension (x) of the tape storage medium (TP) next to the first servo subband (SB1). The first servo subband (SB1) comprises a frame servo pattern containing a set of servo frames (FR), wherein each servo frame (FR) of the set comprises a first burst (A) comprising at least two servo stripes (SP1) inclined at a first angle ( α) with respect to a direction orthogonal to the longitudinal extension (x) of the tape medium (TP), followed by a second burst (B) comprising at least two servo stripes (SP2) inclined at a second angle (β) with respect to the direction orthogonal to the longitudinal extension (x) of the tape medium (TP), which second angle (α) is different from the first angle (β). The second servo subband (SB2) contains a set of servo tracks (STx) extending along the longitudinal extension (x) of the tape storage medium (TP) and arranged next to each other, wherein each servo track (STx) of the set contains a servo pattern of magnetic transitions representing a waveform when being read, and wherein the waveforms of adjacent servo tracks (STx) are orthogonal to each other.
摘要翻译：磁带存储介质包括沿着带存储介质（TP）的纵向延伸（x）的至少一个伺服带（SB），用于支持确定位置信息。伺服带（SB）包括沿着磁带存储介质（1）的纵向延伸（x）延伸的第一伺服子带（SB1）和沿带存储介质（1）的纵向延伸（x）延伸的第二伺服子带介质（TP）位于第一伺服子带（SB1）旁边。第一伺服子带（SB1）包括包含一组伺服帧（FR）的帧伺服模式，其中该组的每个伺服帧（FR）包括第一突发（A），其包括至少两个倾斜于相对于与带介质（TP）的纵向延伸（x）正交的方向的第一角度（α），随后是包括以第二角度倾斜的至少两个伺服条纹（SP2）的第二突发（B）相对于与带介质（TP）的纵向延伸（x）正交的方向，该第二角度（α）与第一角度（＆amp; bgr）不同。第二伺服子带（SB2）包含沿着磁带存储介质（TP）的纵向延伸（x）延伸并彼此相邻布置的一组伺服磁道（STx），其中该组的每个伺服磁道（STx）包含在读取时表示波形的磁转移的伺服模式，并且其中相邻伺服磁道（STx）的波形彼此正交。

3. 发明申请

WO2013144739A1 VIBRATION CONTROL IN DATA STORAGE DEVICES 审中-公开
标题翻译：数据存储设备中的振动控制
公开(公告)号：WO2013144739A1
公开(公告)日：2013-10-03
申请号：PCT/IB2013/051725
申请日：2013-03-05
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM JAPAN, LTD. , IBM RESEARCH GMBH
发明人： LANTZ, Mark Alfred , PANTAZI, Angeliki
IPC分类号： G11B21/12 , G11B15/467 , G11B21/10
CPC分类号： G11B5/584 , G11B5/5582 , G11B5/59694 , G11B27/36
摘要： Data storage devices (1) are provided in which tracking control is adapted to counter effects of vibration. A storage device has a device body (2) and a read/write head (6) for reading and writing data in a data track (10) of a storage medium (5) carried by the device body (2) in use. An actuator system (7) is mounted on the device body (2) for effecting movement of the read/write head (6) relative to the data track (10) to align the head with the data track. The actuator system (7) has a plurality of degrees of freedom for effecting said movement, and a controller (12) controls the actuator system (7) to effect said movement. At least one body vibration sensor (8) is provided on the device body (2) for generating a signal indicative of vibration of the body. At least one actuator vibration sensor (9) is provided on the actuator system (7) for generating a signal indicative of vibration of the actuator system. The controller (12) is adapted to process the signals from the body and actuator vibration sensors (8, 9) to derive at least one coupling signal indicative of vibration coupling between said degrees of freedom, and to control the actuator system (7) in dependence on said at least one coupling signal and the signal from said at least one body vibration sensor (8).
摘要翻译：提供数据存储装置（1），其中跟踪控制适于对抗振动的影响。存储装置具有用于在使用中由装置主体（2）承载的存储介质（5）的数据轨道（10）中读取和写入数据的装置主体（2）和读/写头（6）。执行器系统（7）安装在设备主体（2）上，用于相对于数据轨道（10）执行读/写磁头（6）的移动，以使磁头与数据磁道对准。致动器系统（7）具有多个自由度来实现所述移动，并且控制器（12）控制致动器系统（7）来实现所述移动。至少一个身体振动传感器（8）设置在装置主体（2）上，用于产生指示身体振动的信号。至少一个致动器振动传感器（9）设置在致动器系统（7）上，用于产生指示致动器系统振动的信号。控制器（12）适于处理来自主体和致动器振动传感器（8,9）的信号以导出表示所述自由度之间的振动耦合的至少一个耦合信号，并且控制致动器系统对所述至少一个耦合信号和来自所述至少一个身体振动传感器（8）的信号的依赖性。

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