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1.发明授权Method for establishing and maintaining radial position for hard disk drive self servo write without seed wedges 失效用于建立和保持硬盘驱动器自动伺服写入的径向位置的方法，无需种子楔形公开(公告)号：US07826167B2
公开(公告)日：2010-11-02
申请号：US12272482
申请日：2008-11-17
CPC分类号： G11B5/59688 , G11B5/59638 , G11B5/59666
摘要： Magnetic reference patterns may be generated on a disk or other magnetic media without the need for seed wedges. This involves writing a first magnetic reference pattern to the disk with a servo writer. The disk may then be transferred to a hard disk drive. Control circuitry within the hard disk drive may recognize the first magnetic reference pattern and then position a RW head within the hard disk drive based on the first magnetic reference pattern. As the RW drive is accurately positioned based on the first magnetic reference pattern a second magnetic reference pattern may be written to the disk using the RW head. The RW head location is determined based on the velocity and phase between the read-write head and spiral sync marks contained within the first magnetic reference pattern.
摘要翻译： 可以在盘或其他磁性介质上产生磁参考图案，而不需要种子楔。 这涉及用伺服写入器将第一磁参考图形写入盘。 然后可以将磁盘传输到硬盘驱动器。 硬盘驱动器内的控制电路可以识别第一磁性参考图案，然后基于第一磁性参考图案将RW磁头定位在硬盘驱动器内。 由于RW驱动器基于第一磁性参考图案精确地定位，所以可以使用RW磁头将第二磁性参考图案写入磁盘。 基于包含在第一磁参考图案内的读写头和螺旋同步标记之间的速度和相位来确定RW磁头位置。
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2.发明申请Method for establishing and maintaining radial position for hard disk drive self servo write without seed wedges 失效用于建立和保持硬盘驱动器自动伺服写入的径向位置的方法，无需种子楔形公开(公告)号：US20090067084A1
公开(公告)日：2009-03-12
申请号：US12272482
申请日：2008-11-17
IPC分类号： G11B21/02
CPC分类号： G11B5/59688 , G11B5/59638 , G11B5/59666
摘要： Magnetic reference patterns may be generated on a disk or other magnetic media without the need for seed wedges. This involves writing a first magnetic reference pattern to the disk with a servo writer. The disk may then be transferred to a hard disk drive. Control circuitry within the hard disk drive may recognize the first magnetic reference pattern and then position a RW head within the hard disk drive based on the first magnetic reference pattern. As the RW drive is accurately positioned based on the first magnetic reference pattern a second magnetic reference pattern may be written to the disk using the RW head. The RW head location is determined based on the velocity and phase between the read-write head and spiral sync marks contained within the first magnetic reference pattern.
摘要翻译： 可以在盘或其他磁性介质上产生磁参考图案，而不需要种子楔。 这涉及用伺服写入器将第一磁参考图形写入盘。 然后可以将磁盘传输到硬盘驱动器。 硬盘驱动器内的控制电路可以识别第一磁性参考图案，然后基于第一磁性参考图案将RW磁头定位在硬盘驱动器内。 由于RW驱动器基于第一磁性参考图案精确地定位，所以可以使用RW磁头将第二磁性参考图案写入磁盘。 基于包含在第一磁参考图案内的读写头和螺旋同步标记之间的速度和相位来确定RW磁头位置。
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3.发明授权Method for establishing and maintaining radial position for hard disk drive self servo write without seed wedges 失效用于建立和保持硬盘驱动器自动伺服写入的径向位置的方法，无需种子楔形公开(公告)号：US07471481B2
公开(公告)日：2008-12-30
申请号：US11405871
申请日：2006-04-18
CPC分类号： G11B5/59688 , G11B5/59638 , G11B5/59666
摘要： Magnetic reference patterns may be generated on a disk or other magnetic media without the need for seed wedges. This involves writing a first magnetic reference pattern to the disk with a servo writer. The disk may then be transferred to a hard disk drive. Control circuitry within the hard disk drive may recognize the first magnetic reference pattern and then position a RW head within the hard disk drive based on the first magnetic reference pattern. As the RW drive is accurately positioned based on the first magnetic reference pattern a second magnetic reference pattern may be written to the disk using the RW head. The RW head location is determined based on the velocity and phase between the read-write head and spiral sync marks contained within the first magnetic reference pattern.
摘要翻译： 可以在盘或其他磁性介质上产生磁参考图案，而不需要种子楔。 这涉及用伺服写入器将第一磁参考图形写入盘。 然后可以将磁盘传输到硬盘驱动器。 硬盘驱动器内的控制电路可以识别第一磁性参考图案，然后基于第一磁性参考图案将RW磁头定位在硬盘驱动器内。 由于RW驱动器基于第一磁性参考图案精确地定位，所以可以使用RW磁头将第二磁性参考图案写入磁盘。 基于包含在第一磁参考图案内的读写头和螺旋同步标记之间的速度和相位来确定RW磁头位置。
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公开(公告)号：US07502187B2
公开(公告)日：2009-03-10
申请号：US10900547
申请日：2004-07-28
申请人： Viswanath Annampedu , Fatih Sarigoz
发明人： Viswanath Annampedu , Fatih Sarigoz
IPC分类号： G11B5/09
CPC分类号： G11B20/14 , G11B7/0053 , G11B27/36
摘要： A recording system, such as a magnetic or optical recording system, employs an address mark (AM) detector that searches for an address mark pattern that is augmented by one or more bits of a preamble field so that a false detection rate is reduced. In one case, the address mark includes L bits, and the AM detector compares i) the input detected bits with ii) a SAM pattern of L bits augmented with m bits of the preamble to detect the SAM. In another case, the address mark includes less than L bits (e.g., L−k bits), and the AM detector compares i) the input detected bits with ii) a SAM bit-pattern of (L−k) bits augmented with m bits of the preamble to detect the SAM.
摘要翻译： 诸如磁或光记录系统的记录系统使用地址标记（AM）检测器，其搜索由前导码字段的一个或多个比特扩充的地址标记模式，从而减少错误检测率。 在一种情况下，地址标记包括L位，并且AM检测器将i）输入检测到的比特与ii）增加了前导码的m位的L比特的SAM模式以检测SAM。 在另一种情况下，地址标记包括小于L位（例如，Lk位），并且AM检测器将i）输入检测到的比特与ii）以前同步码的m比特增加的（Lk）比特的SAM比特模式进行比较 检测SAM。
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公开(公告)号：US20060023603A1
公开(公告)日：2006-02-02
申请号：US10900547
申请日：2004-07-28
申请人： Viswanath Annampedu , Fatih Sarigoz
发明人： Viswanath Annampedu , Fatih Sarigoz
IPC分类号： G11B5/09
CPC分类号： G11B20/14 , G11B7/0053 , G11B27/36
摘要： A recording system, such as a magnetic or optical recording system, employs an address mark (AM) detector that searches for an address mark pattern that is augmented by one or more bits of a preamble field so that a false detection rate is reduced. In one case, the address mark includes L bits, and the AM detector compares i) the input detected bits with ii) a SAM pattern of L bits augmented with m bits of the preamble to detect the SAM. In another case, the address mark includes less than L bits (e.g., L-k bits), and the AM detector compares i) the input detected bits with ii) a SAM bit-pattern of (L-k) bits augmented with m bits of the preamble to detect the SAM.
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6.发明申请Method for establishing and maintaining radial position for hard disk drive self servo write without seed wedges 失效用于建立和保持硬盘驱动器自动伺服写入的径向位置的方法，无需种子楔形公开(公告)号：US20070211367A1
公开(公告)日：2007-09-13
申请号：US11405871
申请日：2006-04-18
申请人： King Lau , Richard Wong , Fatih Sarigoz , Ara Nazarian
发明人： King Lau , Richard Wong , Fatih Sarigoz , Ara Nazarian
CPC分类号： G11B5/59688 , G11B5/59638 , G11B5/59666
摘要： Magnetic reference patterns may be generated on a disk or other magnetic media without the need for seed wedges. This involves writing a first magnetic reference pattern to the disk with a servo writer. The disk may then be transferred to a hard disk drive. Control circuitry within the hard disk drive may recognize the first magnetic reference pattern and then position a RW head within the hard disk drive based on the first magnetic reference pattern. As the RW drive is accurately positioned based on the first magnetic reference pattern a second magnetic reference pattern may be written to the disk using the RW head. The RW head location is determined based on the velocity and phase between the read-write head and servo setter marks contained within the first magnetic reference pattern.
摘要翻译： 可以在盘或其他磁性介质上产生磁参考图案，而不需要种子楔。 这涉及用伺服写入器将第一磁参考图形写入盘。 然后可以将磁盘传输到硬盘驱动器。 硬盘驱动器内的控制电路可以识别第一磁性参考图案，然后基于第一磁性参考图案将RW磁头定位在硬盘驱动器内。 由于RW驱动器基于第一磁性参考图案精确地定位，所以可以使用RW磁头将第二磁性参考图案写入磁盘。 基于包含在第一磁性参考图案中的读写头和伺服设定器标记之间的速度和相位来确定RW磁头位置。
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