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公开(公告)号：US08773805B2
公开(公告)日：2014-07-08
申请号：US13600649
申请日：2012-08-31
摘要： Tape media life is increased by dynamically controlling a turn around point (TAP) on the tape media for either an end of a tape wrap or a directional change from a first longitudinal position tape section to a second longitudinal position tape section for reducing damage to the tape media caused by debris by monitoring the TAP for all tape media motion and adjusting tape deceleration for maintaining the TAP to be located at the second longitudinal position tape section.
摘要翻译： 磁带介质寿命通过动态地控制磁带介质上的转向点（TAP）来增加磁带的一端或从第一纵向位置带段到第二纵向位置带段的方向改变，以减少对 通过监测所有胶带介质运动的TAP以及调节胶带减速度来保持TAP位于第二纵向位置带部分，由碎片引起的胶带介质。
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公开(公告)号：US07443623B2
公开(公告)日：2008-10-28
申请号：US12048090
申请日：2008-03-13
CPC分类号： G11B5/584
摘要： Selection of servo signals for peak detection of timing based servo tracks of magnetic tape for lateral positioning of heads relative to the magnetic tape. Servo signals from magneto-resistive servo read head(s) reading a magnetic tape are digitized by analog to digital converter(s); digital peak measurement apparatus is configured to sense the digital converter(s), and provide positive peak values and negative peak values of the digitized servo signals; and control apparatus is configured to determine the greater of the provided positive peak values or negative peak values, and select servo signals having the greater values for a servo channel. Servo apparatus is configured to respond to the selected servo signals to control the lateral positioning of the servo read head(s).
摘要翻译： 选择伺服信号，用于峰值检测用于磁头的定时伺服磁道，用于磁头相对于磁带的横向定位。 来自读磁带的磁阻伺服读头的伺服信号由模拟数字转换器数字化; 数字峰值测量装置被配置为感测数字转换器，并且提供数字化伺服信号的正峰值和负峰值; 并且控制装置被配置为确定所提供的正峰值或负峰值中的较大值，并且选择对伺服信道具有较大值的伺服信号。 伺服装置被配置为响应所选择的伺服信号以控制伺服读取头的横向定位。
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3.发明授权公开(公告)号：US07986482B2
公开(公告)日：2011-07-26
申请号：US12133253
申请日：2008-06-04
CPC分类号： G11B15/32 , G11B15/43 , G11B15/46 , G11B23/107
摘要： As the result of a tape stick condition of magnetic tape with respect to a tape head, the supply reel and the take-up reel apply a base tension to the magnetic tape therebetween of substantially less than a full tension that occurs when the tape is running, and one reel varies the applied tension greater than and less than the base tension by an amount less than the base tension. The variation of the applied tension comprises first applying the greater tension and in succession, second, applying the less tension, comprising a whip effect. The whip effect may be in accordance with a sine wave. The varied tension is less than the base tension to maintain positive tension.
摘要翻译： 作为磁带相对于磁带头的磁带条状的结果，供带盘和卷取卷轴对其之间的磁带施加基本张力，其基本上小于当磁带运行时发生的全张力 ，并且一个卷轴将施加的张力大于和小于基础张力改变小于基础张力的量。 所施加的张力的变化包括首先施加更大的张力并且连续地施加较小的张力，包括鞭子效应。 鞭子效应可能与正弦波一致。 变化的张力小于基础张力以保持正张力。
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公开(公告)号：US20090302143A1
公开(公告)日：2009-12-10
申请号：US12133253
申请日：2008-06-04
IPC分类号： G11B15/46
CPC分类号： G11B15/32 , G11B15/43 , G11B15/46 , G11B23/107
摘要： As the result of a tape stick condition of magnetic tape with respect to a tape head, the supply reel and the take-up reel apply a base tension to the magnetic tape therebetween of substantially less than a full tension that occurs when the tape is running, and one reel varies the applied tension greater than and less than the base tension by an amount less than the base tension. The variation of the applied tension comprises first applying the greater tension and in succession, second, applying the less tension, comprising a whip effect. The whip effect may be in accordance with a sine wave. The varied tension is less than the base tension to maintain positive tension.
摘要翻译： 作为磁带相对于磁带头的磁带条状的结果，供带盘和卷取卷轴对其之间的磁带施加基本张力，其基本上小于当磁带运行时发生的全张力 ，并且一个卷轴将施加的张力大于和小于基础张力改变小于基础张力的量。 所施加的张力的变化包括首先施加更大的张力并且连续地施加较小的张力，包括鞭子效应。 鞭子效应可能与正弦波一致。 变化的张力小于基础张力以保持正张力。
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公开(公告)号：US20080158721A1
公开(公告)日：2008-07-03
申请号：US12048090
申请日：2008-03-13
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： Selection of servo signals for peak detection of timing based servo tracks of magnetic tape for lateral positioning of heads relative to the magnetic tape. Servo signals from magneto-resistive servo read head(s) reading a magnetic tape are digitized by analog to digital converter(s); digital peak measurement apparatus is configured to sense the digital converter(s), and provide positive peak values and negative peak values of the digitized servo signals; and control apparatus is configured to determine the greater of the provided positive peak values or negative peak values, and select servo signals having the greater values for a servo channel. Servo apparatus is configured to respond to the selected servo signals to control the lateral positioning of the servo read head(s).
摘要翻译： 选择伺服信号，用于峰值检测用于磁头的定时伺服磁道，用于磁头相对于磁带的横向定位。 来自读磁带的磁阻伺服读头的伺服信号由模拟数字转换器数字化; 数字峰值测量装置被配置为感测数字转换器，并且提供数字化伺服信号的正峰值和负峰值; 并且控制装置被配置为确定所提供的正峰值或负峰值中的较大值，并且选择对于伺服信道具有较大值的伺服信号。 伺服装置被配置为响应所选择的伺服信号以控制伺服读取头的横向定位。
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公开(公告)号：US07369342B2
公开(公告)日：2008-05-06
申请号：US11286808
申请日：2005-11-22
CPC分类号： G11B5/584
摘要： Selection of servo signals for peak detection of timing based servo tracks of magnetic tape for lateral positioning of heads relative to the magnetic tape. Servo signals from magneto-resistive servo read head(s) reading a magnetic tape are digitized by analog to digital converter(s); digital peak measurement apparatus is configured to sense the digital converter(s), and provide positive peak values and negative peak values of the digitized servo signals; and control apparatus is configured to determine the greater of the provided positive peak values or negative peak values, and select servo signals having the greater values for a servo channel. Servo apparatus is configured to respond to the selected servo signals to control the lateral positioning of the servo read head(s).
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公开(公告)号：US20120275049A1
公开(公告)日：2012-11-01
申请号：US13546973
申请日：2012-07-11
申请人： Scott Milton Fry , Ernest Stewart Gale , Kenji Nakamura , Hirokazu Nakayama , Pamela Ruth Nylander-Hill
发明人： Scott Milton Fry , Ernest Stewart Gale , Kenji Nakamura , Hirokazu Nakayama , Pamela Ruth Nylander-Hill
CPC分类号： G11B27/36 , G11B2220/90
摘要： A method according to one embodiment includes monitoring a data transfer operation for detecting temporary errors; determining whether an error burst has occurred based on the monitoring; if an error burst has occurred, altering a condition of the data transfer operation; monitoring the data transfer operation having the altered condition for detecting temporary errors; determining whether another error burst has occurred based on the monitoring of the data transfer operation having the altered condition; and if another error burst has occurred, altering another condition of the data transfer operation. Additional systems and methods are also presented.
摘要翻译： 根据一个实施例的方法包括监视用于检测临时错误的数据传送操作; 基于所述监视来确定是否发生错误突发; 如果发生错误突发，则改变数据传送操作的状态; 监视具有用于检测临时错误的改变条件的数据传送操作; 基于对具有改变的条件的数据传送操作的监视来确定是否发生了另一个错误突发; 并且如果发生另一个错误突发，则改变数据传送操作的另一条件。 还介绍了其他系统和方法。
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8.发明授权公开(公告)号：US08625226B2
公开(公告)日：2014-01-07
申请号：US13304227
申请日：2011-11-23
CPC分类号： G11B20/10046 , G11B20/10509 , G11B2220/90 , H03H21/0012 , H03H2021/0072
摘要： A method for selecting which tap coefficients of a programmable finite-impulse-response (FIR) equalizer to fix is disclosed. In one embodiment, such a method includes performing an initial calibration to determine an initial value for each tap coefficient of a FIR equalizer. These initial values may be used to produce a first waveform. The method then performs an operation on the first waveform to produce a second waveform comprising multiple lobes. The second waveform is then analyzed to determine one or more lobes of the second waveform that have the largest area. The method then fixes coefficients of one or more taps that are closest to the lobe or lobes having the largest area. A corresponding apparatus and computer program product are also disclosed.
摘要翻译： 公开了一种用于选择可修复有限脉冲响应（FIR）均衡器的抽头系数以进行固定的方法。 在一个实施例中，这种方法包括执行初始校准以确定FIR均衡器的每个抽头系数的初始值。 这些初始值可用于产生第一波形。 该方法然后对第一波形执行操作以产生包括多个波瓣的第二波形。 然后分析第二波形以确定具有最大面积的第二波形的一个或多个波瓣。 该方法然后固定最靠近具有最大面积的凸角或凸角的一个或多个抽头的系数。 还公开了相应的装置和计算机程序产品。
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9.发明授权Technique for fixing tap coefficients in a programmable finite-impulse-response equalizer 失效在可编程有限脉冲响应均衡器中固定抽头系数的技术公开(公告)号：US08605380B1
公开(公告)日：2013-12-10
申请号：US13550603
申请日：2012-07-17
IPC分类号： G11B5/035
CPC分类号： G11B5/00817 , G11B5/09 , G11B20/10009 , G11B20/10046 , G11B2220/90
摘要： A method for selecting which tap coefficients of a programmable finite-impulse-response (FIR) equalizer to fix includes performing an initial calibration to determine an initial value for each tap coefficient of a FIR equalizer. Using these initial values, a “total” FIR equalizer is determined which sets the tap coefficients to their initial values. The method further determines multiple sets of tap coefficients that may potentially be fixed in the FIR equalizer. For each set of tap coefficients that may potentially be fixed, the method determines a “fixed” FIR equalizer that sets the tap coefficients in the set to their initial values and other tap coefficients to zero. The method then determines a phase-difference energy between the “total” FIR equalizer and the “fixed” FIR equalizer for each set of tap coefficients that may potentially be fixed. The set of tap coefficients associated with the lowest phase-difference energy are then fixed.
摘要翻译： 用于选择要修复的可编程有限脉冲响应（FIR）均衡器的抽头系数的方法包括执行初始校准以确定FIR均衡器的每个抽头系数的初始值。 使用这些初始值，确定“总共”FIR均衡器，其将抽头系数设置为其初始值。 该方法还确定可能在FIR均衡器中可能固定的多组抽头系数。 对于潜在固定的每组抽头系数，该方法确定一个“固定”FIR均衡器，其将集合中的抽头系数设置为其初始值和其他抽头系数为零。 该方法然后确定可能可能固定的每组抽头系数的“总”FIR均衡器和“固定”FIR均衡器之间的相位差能量。 然后，与最低相位差能量相关联的抽头系数的集合是固定的。
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公开(公告)号：US06629657B2
公开(公告)日：2003-10-07
申请号：US09816950
申请日：2001-03-22
IPC分类号： G11B23107
CPC分类号： G11B23/037 , B65H18/10 , B65H2301/41368 , B65H2301/414322 , B65H2701/11332 , G11B15/66 , G11B15/67 , G11B23/107
摘要： A method and apparatus to dispose a tape around the hub portion of a rotatable reel disposed within a tape cartridge, said hub including a pair of flanges extending outwardly therefrom and arranged to contain said tape, each of said flanges having an inner surface, said tape disposed on said hub such that a first edge of a first portion of said tape is disposed on the inner surface of a first flange and such that neither of the edges of a second portion of the tape are disposed on the inner surface of that first flange. A tape cartridge comprising a length of tape and rotatable reel disposed therein, said rotatable reel including a hub, and said hub including a pair of flanges extending outwardly therefrom and arranged to contain said tape, each of said flanges having an inner surface, said tape disposed on said hub such that a first edge of a first portion of said tape is disposed on the inner surface of a first flange and such that neither of the edges of a second portion of the tape are disposed on the inner surface of that first flange.
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