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1. 发明授权

US07177114B1 Apparatus, system, and method for the velocity proportional clocking of time base servo tape storage devices 失效
标题翻译：时基伺服磁带存储装置的速度比例时钟的装置，系统和方法
公开(公告)号：US07177114B1
公开(公告)日：2007-02-13
申请号：US11225930
申请日：2005-09-13
申请人： Nhan Xuan Bui , Robert Allen Hutchins , Eiji Ogura , Mark Allan Taylor , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Robert Allen Hutchins , Eiji Ogura , Mark Allan Taylor , Kazuhiro Tsuruta
IPC分类号： G11B5/584 , G11B15/46
CPC分类号： G11B15/1875 , G11B5/584 , G11B15/4673 , G11B20/10222 , G11B20/16 , G11B27/107 , G11B2220/90
摘要： An apparatus, system, and method are disclosed for the velocity proportional clocking of time base servo tape storage devices. The apparatus, system, and method allow the velocity of time base servo tape storage devices to be adjusted and maintained by adjusting the frequency of a clock. In one embodiment, a velocity command is received and the clock signal frequency is varied in response to the command. A feedback control signal may then be produced to control the velocity of a time base servo device in response to the clock signal frequency, the feedback control signal being used to vary the velocity of a servo motor. In one embodiment, the velocity of the servo motor varies directly proportionate to the clock signal frequency.
摘要翻译：公开了一种用于时基伺服带存储装置的速度比例时钟的装置，系统和方法。该装置，系统和方法允许通过调节时钟的频率来调整和维持时基伺服带存储装置的速度。在一个实施例中，接收速度命令并响应于该命令改变时钟信号频率。然后可以产生反馈控制信号以响应于时钟信号频率来控制时基伺服装置的速度，反馈控制信号用于改变伺服电动机的速度。在一个实施例中，伺服电动机的速度与时钟信号频率成正比。

2. 发明授权

US07990649B2 Method and apparatus to set a wrap angle of a read/write head 失效
标题翻译：设置读/写头的包角的方法和装置
公开(公告)号：US07990649B2
公开(公告)日：2011-08-02
申请号：US12505439
申请日：2009-07-17
申请人： Nhan Xuan Bui , Reed Alan Hancock , Robert Allen Hutchins , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Reed Alan Hancock , Robert Allen Hutchins , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B17/00 , G11B5/584 , G11B27/36 , G11B15/60 , G11B15/00 , G11B21/02
CPC分类号： G11B15/602 , G11B5/0083 , G11B5/584 , G11B5/78 , G11B15/62
摘要： A method is presented for setting a wrap angle of a read/write head having a servo element and multiple read elements, where the servo element and the read elements can detect a servo signal. The method includes moving a sequential information storage medium having a longitudinal axis and a servo band encoded therein adjacent to the read/write head. The longitudinal axis and a flat upper surface of the read write head define the wrap angle. The method further includes detecting the servo signal using one of the read elements. If the read element is unable to detect the servo signal, then the remaining read elements are sensed to detect the servo signal.
摘要翻译：提出了一种用于设置具有伺服元件和多个读取元件的读/写头的包角的方法，其中伺服元件和读取元件可以检测伺服信号。该方法包括移动具有与读/写头相邻编码的纵轴和伺服带的顺序信息存储介质。读写头的纵向轴线和平坦的上表面限定了包角。该方法还包括使用读取元件之一来检测伺服信号。如果读取元件不能检测到伺服信号，则检测剩余的读取元件以检测伺服信号。

3. 发明授权

US06940682B2 Data read transducers for determining lateral position of a tape head with respect to longitudinal servo bands of magnetic tape 失效
公开(公告)号：US06940682B2
公开(公告)日：2005-09-06
申请号：US10660436
申请日：2003-09-10
申请人： Nhan Xuan Bui , Robert Allen Hutchins , Glen Alan Jaquette , Larry Leeroy Tretter , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Robert Allen Hutchins , Glen Alan Jaquette , Larry Leeroy Tretter , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： In a magnetic tape system, during lateral repositioning of a tape head between servo bands, the servo head is not on a servo band and is unable to provide servo position information. Hence, information about the lateral position may be lost. A control system selectively senses data read transducers of the tape head; and, upon detecting a servo signal of a servo band from a sensed data read transducer, determines the lateral position of the tape head with respect to the detected servo band based upon the position of the data read transducer that sensed the detected servo signal.

4. 发明授权

US07102847B2 Identification of laterally positioned servo bands employing differentiating characteristics of servo patterns 有权
公开(公告)号：US07102847B2
公开(公告)日：2006-09-05
申请号：US11215456
申请日：2005-08-29
申请人： Nhan Xuan Bui , James Howard Eaton , Junichi Fukuda , Glen Alan Jaquette , Eiji Ogura , Mark Allan Taylor , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , James Howard Eaton , Junichi Fukuda , Glen Alan Jaquette , Eiji Ogura , Mark Allan Taylor , Kazuhiro Tsuruta
IPC分类号： G11B5/584 , G11B5/09
CPC分类号： G11B5/584 , G11B5/00813 , G11B5/78
摘要： In a tape having separate servo bands of patterns positioned laterally across the tape, the patterns of a separate servo band have at least one differentiating characteristic with respect to patterns of another of the separate servo bands. The differentiating characteristic allows identification of the separate servo bands. For example, the patterns of a separate servo band have differing azimuthal orientations of detectable transitions with respect to another servo band, such as being laterally inverted. In another, variations in the width of gaps of patterns are made with respect to another servo band. In another, variations are made in the number of the detectable transitions of patterns with respect to the patterns of another servo band.

5. 发明授权

US07102846B2 Identification of laterally positioned servo bands employing differentiating characteristics of servo patterns 失效
公开(公告)号：US07102846B2
公开(公告)日：2006-09-05
申请号：US11215132
申请日：2005-08-29
申请人： Nhan Xuan Bui , James Howard Eaton , Junichi Fukuda , Glen Alan Jaquette , Eiji Ogura , Mark Allan Taylor , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , James Howard Eaton , Junichi Fukuda , Glen Alan Jaquette , Eiji Ogura , Mark Allan Taylor , Kazuhiro Tsuruta
IPC分类号： G11B5/584 , G11B5/09
CPC分类号： G11B5/584 , G11B5/00813 , G11B5/78
摘要： In a tape having separate servo bands of patterns positioned laterally across the tape, the patterns of a separate servo band have at least one differentiating characteristic with respect to patterns of another of the separate servo bands. The differentiating characteristic allows identification of the separate servo bands. For example, the patterns of a separate servo band have differing azimuthal orientations of detectable transitions with respect to another servo band, such as being laterally inverted. In another, variations in the width of gaps of patterns are made with respect to another servo band. In another, variations are made in the number of the detectable transitions of patterns with respect to the patterns of another servo band.

6. 发明授权

US07002763B2 Identification of laterally positioned servo bands employing differentiating characteristics of servo patterns 失效
标题翻译：使用伺服模式的微分特性识别横向定位的伺服带
公开(公告)号：US07002763B2
公开(公告)日：2006-02-21
申请号：US10638041
申请日：2003-08-08
申请人： Nhan Xuan Bui , James Howard Eaton , Junichi Fukuda , Glen Alan Jaquette , Eiji Ogura , Mark Allan Taylor , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , James Howard Eaton , Junichi Fukuda , Glen Alan Jaquette , Eiji Ogura , Mark Allan Taylor , Kazuhiro Tsuruta
IPC分类号： G11B5/09
CPC分类号： G11B5/584 , G11B5/00813 , G11B5/78
摘要： In a tape having separate servo bands of patterns positioned laterally across the tape, the patterns of a separate servo band have at least one differentiating characteristic with respect to patterns of another of the separate servo bands. The differentiating characteristic allows identification of the separate servo bands. For example, the patterns of a separate servo band have differing azimuthal orientations of detectable transitions with respect to another servo band, such as being laterally inverted. In another, variations in the width of gaps of patterns are made with respect to another servo band. In another, variations are made in the number of the detectable transitions of patterns with respect to the patterns of another servo band.
摘要翻译：在具有横向跨越带的位置的分离的图案的带的带中，单独的伺服带的图案相对于另一个分离的伺服带的图案具有至少一个微分特性。微分特性允许识别单独的伺服带。例如，单独的伺服带的图案具有相对于另一个伺服带的可检测转变的方位取向不同，例如横向倒置。另一方面，相对于另一个伺服带，进行图案间隙宽度的变化。另一方面，在相对于另一个伺服带的图案的图案的可检测转变的数量中进行变化。

7. 发明授权

US06937413B2 Tape servo information with superimposed data information providing servo band identification 有权
标题翻译：磁带伺服信息与叠加数据信息提供伺服带识别
公开(公告)号：US06937413B2
公开(公告)日：2005-08-30
申请号：US10638080
申请日：2003-08-08
申请人： Nhan Xuan Bui , James Howard Eaton , Junichi Fukuda , Glen Alan Jaquette , Eiji Ogura , Mark Allan Taylor , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , James Howard Eaton , Junichi Fukuda , Glen Alan Jaquette , Eiji Ogura , Mark Allan Taylor , Kazuhiro Tsuruta
IPC分类号： G11B5/008 , G11B5/584 , G11B5/78 , G11B5/09
CPC分类号： G11B5/584 , G11B5/00813 , G11B5/78
摘要： In magnetic tape having separate longitudinal servo bands of servo information with superimposed data information, the separate servo bands have selected different superimposed data information, to identify the separate servo bands for independent addressability. The servo information comprises non-parallel laterally extending transitions to indicate lateral positioning, and the selected different superimposed data information may comprise a lack thereof in portion(s) of the servo bands. Where the superimposed data information is longitudinal position information of the tape, the selected different superimposed data information may comprise different longitudinal position information of one or more servo band(s). The selected different superimposed data information may comprise a band identifier in the superimposed data information of one or more of the servo bands.
摘要翻译：在具有具有叠加数据信息的伺服信息的单独的纵向伺服带的磁带中，分离的伺服带已经选择了不同的叠加数据信息，以识别用于独立寻址能力的单独的伺服带。伺服信息包括非平行横向延伸的转换以指示横向定位，并且所选择的不同叠加数据信息可能包括在伺服带的一部分中的缺乏。在叠加数据信息是磁带的纵向位置信息的情况下，所选择的不同叠加数据信息可以包括一个或多个伺服带的不同纵向位置信息。所选择的不同的叠加数据信息可以包括一个或多个伺服带的叠加数据信息中的频带标识符。

8. 发明授权

US08405926B2 Tape drive velocity control 失效
标题翻译：磁带机速度控制
公开(公告)号：US08405926B2
公开(公告)日：2013-03-26
申请号：US12842938
申请日：2010-07-23
申请人： Nhan Xuan Bui , Reed Alan Hancock , Randy Clark Inch , Shuhei Nadehara , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Reed Alan Hancock , Randy Clark Inch , Shuhei Nadehara , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B15/52 , G11B15/46
CPC分类号： G11B15/32 , G11B15/46 , G11B15/52
摘要： In accordance with the present invention, a method of operating a magnetic tape drive, a magnetic tape drive and a servo control system are provided for obtaining and maintaining velocity control in a magnetic tape drive. In one embodiment, a method is provided for operating a magnetic tape drive. The tape drive includes a plurality of DC motors, and each DC motor has a plurality of Hall sensors. The DC motors are under the control of a servo system which is configured to read location information from the magnetic tape, and compute a primary tape velocity from the location information, and sense a secondary and tertiary velocity signal and compute a tape velocity based on one of the sensed secondary velocity signal and tertiary velocity. The method includes detecting if the primary velocity location information is available. In response to detecting that the primary velocity location information is available the primary velocity is employed to control the servo system. In response to detecting the primary velocity location information is unavailable then one of a secondary or a tertiary velocity signal is employed. The secondary velocity signal is employed when an absolute value of a term related to tape velocity is less than a predetermined value. The tertiary velocity signal is employed when the absolute value of the term related to tape velocity is greater than the predetermined value.
摘要翻译：根据本发明，提供了一种操作磁带驱动器，磁带驱动器和伺服控制系统的方法，用于获得和维持磁带驱动器中的速度控制。在一个实施例中，提供了一种用于操作磁带驱动器的方法。磁带驱动器包括多个DC电动机，并且每个DC电动机具有多个霍尔传感器。直流电动机处于伺服系统的控制之下，伺服系统被配置为从磁带读取位置信息，并从位置信息计算主带速度，并感测二次和三次速度信号，并基于一个速度信号计算磁带速度的感测二次速度信号和三次速度。该方法包括检测主速度位置信息是否可用。响应于检测到主速度位置信息可用，主速度被用于控制伺服系统。响应于检测到主速度位置信息不可用，则采用次速或三速信号中的一个。当与磁带速度相关的项的绝对值小于预定值时，采用二次速度信号。当与磁带速度相关的项的绝对值大于预定值时，采用三次速度信号。

9. 发明申请

US20120019953A1 'Tape Drive Velocity Control' 失效
标题翻译： “磁带驱动器速度控制”
公开(公告)号：US20120019953A1
公开(公告)日：2012-01-26
申请号：US12842938
申请日：2010-07-23
申请人： Nhan Xuan Bui , Reed Alan Hancock , Randy Clark Inch , Shuhei Nadehara , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Reed Alan Hancock , Randy Clark Inch , Shuhei Nadehara , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B19/02
CPC分类号： G11B15/32 , G11B15/46 , G11B15/52
摘要： In accordance with the present invention, a method of operating a magnetic tape drive, a magnetic tape drive and a servo control system are provided for obtaining and maintaining velocity control in a magnetic tape drive. In one embodiment, a method is provided for operating a magnetic tape drive. The tape drive includes a plurality of DC motors, and each DC motor has a plurality of Hall sensors. The DC motors are under the control of a servo system which is configured to read location information from the magnetic tape, and compute a primary tape velocity from the location information, and sense a secondary and tertiary velocity signal and compute a tape velocity based on one of the sensed secondary velocity signal and tertiary velocity. The method includes detecting if the primary velocity location information is available. In response to detecting that the primary velocity location information is available the primary velocity is employed to control the servo system. In response to detecting the primary velocity location information is unavailable then one of a secondary or a tertiary velocity signal is employed. The secondary velocity signal is employed when an absolute value of a term related to tape velocity is less than a predetermined value. The tertiary velocity signal is employed when the absolute value of the term related to tape velocity is greater than the predetermined value.
摘要翻译：根据本发明，提供了一种操作磁带驱动器，磁带驱动器和伺服控制系统的方法，用于获得和维持磁带驱动器中的速度控制。在一个实施例中，提供了一种用于操作磁带驱动器的方法。磁带驱动器包括多个DC电动机，并且每个DC电动机具有多个霍尔传感器。直流电动机处于伺服系统的控制之下，伺服系统被配置为从磁带读取位置信息，并从位置信息计算主带速度，并感测二次和三次速度信号，并基于一个速度信号计算磁带速度的感测二次速度信号和三次速度。该方法包括检测主速度位置信息是否可用。响应于检测到主速度位置信息可用，主速度被用于控制伺服系统。响应于检测到主速度位置信息不可用，则采用次速或三速信号中的一个。当与磁带速度相关的项的绝对值小于预定值时，采用二次速度信号。当与磁带速度相关的项的绝对值大于预定值时，采用三次速度信号。

10. 发明授权

US07903368B2 Tape cartridge having tape media with longitudinally shifted servo pattern for increased sampling rate 有权
标题翻译：磁带盒具有带有纵向移位伺服模式的磁带介质，以提高采样速率
公开(公告)号：US07903368B2
公开(公告)日：2011-03-08
申请号：US12024127
申请日：2008-02-01
申请人： Nhan Xuan Bui , Reed Alan Hancock , Eiji Ogura , Kazuhiro Tsuruta
发明人： Nhan Xuan Bui , Reed Alan Hancock , Eiji Ogura , Kazuhiro Tsuruta
IPC分类号： G11B5/584
CPC分类号： G11B5/584
摘要： A magnetic tape cartridge including magnetic tape with servo information is provided. The servo information comprises a plurality of parallel longitudinal servo bands that lie between a plurality of longitudinal data bands. The plurality of servo bands include odd servo bands and even servo bands, wherein each of the odd servo bands lie between each of the even servo bands. Each of the plurality servo bands include a plurality of frames, wherein each frame includes a plurality of bursts of transition stripes, and each burst having a first transition stripe. The first transition stripe of each burst of each the odd servo band is longitudinally shifted from the first transition stripe of each burst of each even servo band by a substantially equal distance, D, such that servo information of the odd servo bands is interleaved with the servo information from the even servo bands.
摘要翻译：提供一种包括具有伺服信息的磁带的磁带盒。伺服信息包括位于多个纵向数据带之间的多个并行纵向伺服带。多个伺服频带包括奇数伺服频带和偶数伺服频带，其中奇数伺服频带中的每一个位于每个偶数伺服频带之间。多个伺服频带中的每一个包括多个帧，其中每个帧包括多个过渡条纹脉冲串，并且每个脉冲串具有第一过渡条带。每个奇数伺服频带的每个脉冲串的第一个转移条纹从每个偶数伺服频带的每个脉冲串的第一转移条带纵向偏移大致相等的距离D，使得奇数伺服带的伺服信息与来自偶数伺服带的伺服信息。

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