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公开(公告)号：US5198948A
公开(公告)日：1993-03-30
申请号：US622558
申请日：1990-12-05
CPC分类号： G11B5/3143 , G11B5/4886
摘要： A servo head in a disk file data storage system includes at least one shield which acts to block radiation emanating from a nearby data head and thus reduce noise induced in the servo head. The shield is located on either side of an essentially flat conducting coil in a servo transducer, or a data transducer or both. The shield may be either a single layer of material or multiple layers.
摘要翻译： 磁盘文件数据存储系统中的伺服磁头包括至少一个屏蔽件，其用于阻止从附近的数据磁头发出的辐射，从而减少伺服磁头引起的噪声。 屏蔽位于伺服换能器中的基本平坦的导电线圈的两侧，或数据换能器或两者之间。 屏蔽可以是单层材料或多层。
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2.发明授权Servo head with close servo transducer placement for improved passive noise cancellation 失效伺服头具有紧密的伺服传感器放置，可改善无源噪声消除
公开(公告)号：US5471354A
公开(公告)日：1995-11-28
申请号：US248756
申请日：1994-05-25
CPC分类号： G11B5/5526 , G11B5/11 , G11B5/4886 , G11B5/596
摘要： A servo head in a disk file data storage system includes two servo transducers which are connected so that noise induced by a nearby writing data head cancels. The first servo transducer, mounted on a slider, reads information stored on a servo disk. A second servo transducer, also located on the slider, is connected to the first servo transducer to produce an output signal so that noise signals induced in the first servo transducer by operation of the data transducer tend to be canceled by noise signals induced in the second servo transducer by operation of the data transducer. The two servo transducers are located such that they are closely spaced relative to the size of the servo transducers. The close proximity of the two servo transducers reduces the effect of unequal shielding from noise signals induced in the two servo transducers by the data head.
摘要翻译： 磁盘文件数据存储系统中的伺服磁头包括两个连接的伺服传感器，使得由附近写入数据磁头引起的噪声消除。 安装在滑块上的第一个伺服传感器读取存储在伺服盘上的信息。 也位于滑动器上的第二伺服传感器连接到第一伺服换能器以产生输出信号，使得通过数据传感器的操作在第一伺服换能器中感应的噪声信号倾向于通过在第二伺服传感器中感应的噪声信号来消除 伺服传感器通过数据传感器的操作。 这两个伺服传感器的位置使得它们相对于伺服换能器的尺寸紧密地间隔开。 两个伺服传感器的紧密接近减少了由数据头在两个伺服传感器中感应到的噪声信号的不平等屏蔽的影响。
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3.发明授权Methods of improved servo head passive noise cancellation by placement and orientation of multiple servo transducers 失效通过多个伺服传感器的放置和定向改进伺服头无源噪声消除的方法
公开(公告)号：US5210669A
公开(公告)日：1993-05-11
申请号：US573878
申请日：1990-08-27
CPC分类号： G11B5/596 , G11B5/11 , G11B5/4886 , G11B5/5526
摘要： A servo head in a disk file data storage system includes two servo transducers which are connected so that noise induced by a nearby writing data head will cancel. The two servo transducers are located an equal distance from the data transducer. The pole tips of the first servo transducer are positioned to read servo information stored on an adjacent servo disk. The pole tips of the second servo transducer are oriented away from the servo disk surface to prevent the second servo transducer from reading an unwanted signal from the servo disk.
摘要翻译： 磁盘文件数据存储系统中的伺服磁头包括两个连接的伺服传感器，使得由附近写入数据磁头引起的噪声将被取消。 两个伺服传感器位于与数据传感器相等的距离处。 第一伺服传感器的极尖定位成读取存储在相邻伺服盘上的伺服信息。 第二伺服传感器的极尖取向远离伺服盘表面，以防止第二伺服传感器从伺服盘读取不需要的信号。
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公开(公告)号：US5136439A
公开(公告)日：1992-08-04
申请号：US415053
申请日：1989-09-29
CPC分类号： G11B5/59688
摘要： A demodulator system demodulates position information signals provided by a transducer in response to position information. The position information is read from a quadrature field and a normal field on a disk in a data storage system. A rectifier rectifies the position information signals to provide rectified position signals. An integrating capacitor integrates the rectified position signals to produce position error signals representative of trasducer position.
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公开(公告)号：US5117408A
公开(公告)日：1992-05-26
申请号：US415500
申请日：1989-09-29
CPC分类号： G11B5/5556
摘要： Transducer position is determined relative to a disk in a data storage system. Track identification information is read from a disk in the data storage system to provide a coarse position signal identifying a track that the transducer is positioned over. Position error samples are read from a disk in the data storage system to provide a fine position signal representing transducer position error within a track that the transducer is positioned over. Then, the coarse position signal and the fine position signal are correlated so they correspond to the same track on the disk.
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公开(公告)号：US5182682A
公开(公告)日：1993-01-26
申请号：US829613
申请日：1992-01-30
IPC分类号： G11B5/596
CPC分类号： G11B5/59688
摘要： A sector on a disk contains position information used to determine position error of a transducer over the disk. The sector has a normal field with a first side and a second side. The first side is oriented opposite the second side on the disk. A first quadrature field is located on the first side of the normal field and a second quadrature field is located on the second side of the normal field.
摘要翻译： 磁盘上的扇区包含用于确定磁盘上传感器位置误差的位置信息。 该扇区具有带有第一侧和第二侧的正常场。 第一面与磁盘上的第二面相对。 第一正交场位于正常场的第一侧，第二正交场位于正常场的第二侧。
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