Servo methods and systems using existing data structures and medium edge position
    1.
    发明授权
    Servo methods and systems using existing data structures and medium edge position 有权
    使用现有数据结构和中等边缘位置的伺服方法和系统

    公开(公告)号:US07102845B2

    公开(公告)日:2006-09-05

    申请号:US10942658

    申请日:2004-09-15

    IPC分类号: G11B5/596

    CPC分类号: G11B5/584

    摘要: The present invention provides servo systems and accompanying methods for determining the relative position of a transducer head to a magnetic storage tape utilizing existing data structures on the magnetic storage tape and the position of the tape edge. In one example, a method for positioning a transducer head relative to a magnetic storage medium includes sensing a read signal from a read element associated with a transducer head, the read signal in response to a reference data track stored on a magnetic storage medium, optically sensing a position of an edge of the storage medium, and repositioning the transducer head relative to the storage medium in response to the read signal and the position of the edge of the storage medium.

    摘要翻译: 本发明提供了伺服系统和相关方法,用于利用磁存储带上的现有数据结构和磁带边缘的位置确定换能器头与磁存储磁带的相对位置。 在一个示例中,用于相对于磁存储介质定位换能器头的方法包括:检测来自与换能器头相关联的读取元件的读取信号,该读取信号响应于存储在磁性存储介质上的参考数据轨迹,光学地 感测存储介质的边缘的位置,以及响应于读取信号和存储介质的边缘的位置,相对于存储介质重新定位换能器头。

    Servo methods and systems using masked medium edge position sensors
    2.
    发明授权
    Servo methods and systems using masked medium edge position sensors 有权
    使用屏蔽中间位置传感器的伺服方法和系统

    公开(公告)号:US07136255B2

    公开(公告)日:2006-11-14

    申请号:US10942678

    申请日:2004-09-15

    IPC分类号: G11B5/584

    CPC分类号: G11B5/584

    摘要: The present invention provides servo systems and accompanying methods for determining the relative position of a transducer head to a magnetic storage tape utilizing the position of the magnetic storage tape edge. In one example, a method for positioning a transducer head relative to a magnetic storage medium includes optically sensing a position of an edge of the storage medium, and repositioning the transducer head relative to the storage medium based on the read signal and the position of the edge of the storage medium.

    摘要翻译: 本发明提供了伺服系统和伴随的方法,用于利用磁存储带边缘的位置确定换能器头与磁存储带的相对位置。 在一个示例中,用于相对于磁存储介质定位换能器头的方法包括光学地感测存储介质的边缘的位置,并且基于读取信号和相对于存储介质的位置来重新定位换能器头相对于存储介质 存储介质的边缘。

    Servo methods and systems using existing data structures and optical masks
    3.
    发明授权
    Servo methods and systems using existing data structures and optical masks 有权
    使用现有数据结构和光学掩模的伺服方法和系统

    公开(公告)号:US07139152B2

    公开(公告)日:2006-11-21

    申请号:US10929039

    申请日:2004-08-27

    IPC分类号: G11B5/584

    CPC分类号: G11B5/584

    摘要: In one example, a method is provided for detecting the relative position of a transducer head with respect to a storage medium utilizing existing or previously written data structures on a magnetic storage tape and optically diffractive media. The method includes generating a read signal from a read element associated with a transducer head, the read signal generated from a reference data track stored on a magnetic storage medium, and determining a relative position of a first diffractive medium with respect to a second diffractive medium, wherein the first diffractive medium is associated with the storage medium. The transducer head is repositioned relative to the storage medium in response to the read signal and the relative position of the first diffractive medium and the second diffractive medium.

    摘要翻译: 在一个示例中,提供了一种用于利用磁存储带和光学衍射介质上的现有或预先写入的数据结构来检测换能器头相对于存储介质的相对位置的方法。 该方法包括从与换能器头相关联的读取元件产生读取信号,从存储在磁性存储介质上的参考数据轨道产生的读取信号,以及确定第一衍射介质相对于第二衍射介质的相对位置 ,其中所述第一衍射介质与所述存储介质相关联。 响应于读取信号和第一衍射介质和第二衍射介质的相对位置,换能器头相对于存储介质重新定位。

    Methods and systems for magnetic recording
    4.
    发明授权
    Methods and systems for magnetic recording 有权
    磁记录方法和系统

    公开(公告)号:US07116514B2

    公开(公告)日:2006-10-03

    申请号:US10928229

    申请日:2004-08-27

    IPC分类号: G11B5/584

    摘要: According to one aspect, methods and systems for determining the position of a recording head using existing data structures on magnetic storage media are provided. In one example, a recording head writes data to an active track on a magnetic storage tape, the recording head including a write element and a read element in a known spatial relationship, wherein the read element is configured to access at least a portion of a reference track when the write element is accessing the active track. A controller determines a relative position of the transducer element to the reference track and repositions the recording head to write data to the active track. The read element may be a backward channel reader or dedicated read element of the recording head for reading reference tracks during read and/or write operations.

    摘要翻译: 根据一个方面,提供了使用磁存储介质上的现有数据结构来确定记录头的位置的方法和系统。 在一个示例中,记录头将数据写入磁存储磁带上的活动轨道,记录头包括已知空间关系的写入元件和读取元件,其中读取元件被配置为访问至少一部分 写入元素访问活动轨道时的参考轨迹。 控制器确定换能器元件与参考轨道的相对位置,并重新定位记录头以将数据写入到主动轨道。 读取元件可以是用于在读取和/或写入操作期间读取参考轨道的记录头的反向通道读取器或专用读取元件。

    Four channel azimuth and two channel non-azimuth read-after-write
longitudinal magnetic head
    6.
    发明授权
    Four channel azimuth and two channel non-azimuth read-after-write longitudinal magnetic head 有权
    四通道方位角和双通道非方位读写纵向磁头

    公开(公告)号:US6130804A

    公开(公告)日:2000-10-10

    申请号:US370459

    申请日:1999-08-09

    摘要: A read-after-write head for four channel azimuth recording in one mode of operation and two channel non-azimuth recording in another mode of operation. Four forward write head gaps, four read head gaps, and four backward write head gaps are geometrically positioned within a rotatable and laterally indexable face plate of a recording head housing. The read and write heads gaps collectively provide four forward write channels, four read channels, and four backward write channels. During the azimuth mode of operation, the head is rotated to the preselected positive or negative azimuth angle and all of the read and write channels are utilized. During the non-azimuth, or vertical, mode of operation, write channels two and four are utilized in combination with read channels one and three to provide two-channel non-azimuth, or vertical, operation.

    摘要翻译: 在一种操作模式下的四通道方位记录读写头读取器,另一种操作模式下的两通道非方位记录。 四个前向写入头间隙,四个读取头间隙和四个向后写入头部间隙几何地位于记录头壳体的可旋转和可侧向可转位的面板内。 读写头间隙共同提供四个正向写入通道,四个读取通道和四个反向写入通道。 在方位操作模式下,头部旋转到预选的正或负方位角,并利用所有的读和写通道。 在非方位或垂直操作模式期间,将两个和四个写入通道与读取通道一和三组合使用以提供双通道非方位或垂直操作。

    Method for optimized tape tension adjustment for a tape drive
    7.
    发明授权
    Method for optimized tape tension adjustment for a tape drive 失效
    用于磁带驱动器的优化胶带张力调整方法

    公开(公告)号:US5216556A

    公开(公告)日:1993-06-01

    申请号:US692107

    申请日:1991-04-26

    IPC分类号: G11B15/43 G11B33/10

    CPC分类号: G11B15/43 G11B33/10

    摘要: A method for adjusting the tension of a tape in a tape drive is disclosed. The tape is loaded into the tape drive. A test signal is then provided to record test information onto the tape while the tape tension is varied concurrently in a prescribed manner. The test information is read immediately to provide a test readback signal. The test readback signal is processed to determine a functional relationship between the test readback signal and the tape tension. An operating tape tension value is computed based upon the functional relationship. The operating tape tension is implemented on the tape drive in the form of a command signal to a motor means of the tape drive.

    Diffractive position sensors and control systems
    8.
    发明授权
    Diffractive position sensors and control systems 失效
    衍射位置传感器和控制系统

    公开(公告)号:US07149050B2

    公开(公告)日:2006-12-12

    申请号:US10927732

    申请日:2004-08-27

    IPC分类号: G11B5/584

    CPC分类号: G11B5/584

    摘要: According to one aspect, systems and methods are provided for detecting the relative position of a transducer head with respect to a storage medium utilizing optically diffractive media. In one example, a head positioning servo system includes a transducer head assembly, a diffractive medium spatially fixed with respect to the transducer head assembly, a light source for illuminating at least a portion of a magnetic storage medium and the diffractive medium, a detector for detecting light from the light source illuminating the magnetic storage medium and the diffractive medium, and a controller for adjusting the position of the transducer head with respect to the magnetic storage medium in response to the detected light.

    摘要翻译: 根据一个方面,提供了系统和方法,用于利用光学衍射介质来检测换能器头相对于存储介质的相对位置。 在一个示例中,头定位伺服系统包括换能器头组件,相对于换能器头组件空间固定的衍射介质,用于照射磁存储介质和衍射介质的至少一部分的光源,用于 检测来自照射所述磁存储介质和所述衍射介质的光源的光;以及控制器,用于响应于所检测到的光而调节所述换能器头相对于所述磁存储介质的位置。

    Electromagnetic void-sensing probes and position control systems
    9.
    发明授权
    Electromagnetic void-sensing probes and position control systems 有权
    电磁空穴传感探头和位置控制系统

    公开(公告)号:US07085095B2

    公开(公告)日:2006-08-01

    申请号:US10928003

    申请日:2004-08-27

    IPC分类号: G11B5/584 G11B21/02 G11B17/00

    CPC分类号: G11B5/584

    摘要: In one aspect, an electromagnetic or capacitive sensing position system for determining the relative position of at least one void in a conductive material is provided. In one example, the system includes a sensor (or probe) having at least two probe elements (e.g., tips or plates). The position of the probe relative to the at least one void is determined in response to an electrical signal (e.g., a differential signal) measured across the two probe elements that varies in response to interaction of the probe elements with the at least one void. The system may be used, e.g., to servo a magnetic head assembly relative to a magnetic storage tape.

    摘要翻译: 在一个方面,提供了用于确定导电材料中的至少一个空隙的相对位置的电磁或电容感测位置系统。 在一个示例中,该系统包括具有至少两个探针元件(例如尖端或板)的传感器(或探针)。 响应于响应于探针元件与至少一个空隙的相互作用而变化的两个探针元件测量的电信号(例如,差分信号)来确定探针相对于至少一个空隙的位置。 该系统可以用于例如相对于磁存储带来伺服磁头组件。

    Electromagnetic void-sensing probes and position control systems
    10.
    发明申请
    Electromagnetic void-sensing probes and position control systems 有权
    电磁空穴传感探头和位置控制系统

    公开(公告)号:US20050088770A1

    公开(公告)日:2005-04-28

    申请号:US10928003

    申请日:2004-08-27

    CPC分类号: G11B5/584

    摘要: In one aspect, an electromagnetic or capacitive sensing position system for determining the relative position of at least one void in a conductive material is provided. In one example, the system includes a sensor (or probe) having at least two probe elements (e.g., tips or plates). The position of the probe relative to the at least one void is determined in response to an electrical signal (e.g., a differential signal) measured across the two probe elements that varies in response to interaction of the probe elements with the at least one void. The system may be used, e.g., to servo a magnetic head assembly relative to a magnetic storage tape.

    摘要翻译: 在一个方面,提供了用于确定导电材料中的至少一个空隙的相对位置的电磁或电容感测位置系统。 在一个示例中,该系统包括具有至少两个探针元件(例如尖端或板)的传感器(或探针)。 响应于响应于探针元件与至少一个空隙的相互作用而变化的两个探针元件测量的电信号(例如,差分信号)来确定探针相对于至少一个空隙的位置。 该系统可以用于例如相对于磁存储带来伺服磁头组件。