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1. 发明公开

EP2597641A1 Magnetic recording system with multi-level write current 审中-公开
标题翻译： Magnetisches Aufzeichnungssystem mit Mehrstufen-Schreibstrom
公开(公告)号：EP2597641A1
公开(公告)日：2013-05-29
申请号：EP12183937.7
申请日：2012-09-11
申请人： LSI Corporation
发明人： Livshitz, Boris , Wilson, Ross S. , Goldberg, Jason S.
IPC分类号： G11B5/02
CPC分类号： G11B5/02 , G11B5/012 , G11B5/09 , G11B20/10027 , G11B20/10222 , G11B2220/2516
摘要： Various embodiments of the present invention provide apparatuses, systems and methods for magnetic recording with a multi-level write current waveform. For example, an apparatus for magnetic recording with a multi-level write current waveform is disclosed that includes a pattern detection circuit (400) operable to detect patterns in data to be written by the magnetic write head (764) and to yield a pattern indicator signal (502), and a write driver (132) operable to generate the multi-level write current waveform for the magnetic write head (764). At least one electrical characteristic of the multi-level write current waveform is based upon the patterns detected by the pattern detection circuit (400).
摘要翻译：本发明的各种实施例提供了具有多电平写入电流波形的磁记录的装置，系统和方法。例如，公开了一种具有多电平写入电流波形的磁记录装置，其包括可操作以检测由磁性写入头（764）写入的数据中的图案的模式检测电路（400），并产生图案指示符信号（502）和写入驱动器（132），其可操作以产生用于磁性写入头（764）的多电平写入电流波形。多电平写入电流波形的至少一个电特性基于由图案检测电路（400）检测到的图案。

2. 发明公开

EP2637171A2 Storage device having write signal with multiple-slope data transition 审中-公开
标题翻译： Speechervorrichtung mit Schreibsignal mitMehrfachgefälle-Datenübergang
公开(公告)号：EP2637171A2
公开(公告)日：2013-09-11
申请号：EP13158612.5
申请日：2013-03-11
申请人： LSI Corporation
发明人： Livshitz, Boris , Gleason, Jeffrey A. , Goldberg, Jason S. , Mazur, Paul , Rabe, Cameron C.
IPC分类号： G11B20/10 , G11B5/02 , G11B5/09
CPC分类号： G11B20/10009 , G11B5/02
摘要： A hard disk drive or other disk-based storage device comprises a storage disk, a read/write head configured to read data from and write data to the disk, and control circuitry coupled to or otherwise associated with the read/write head. The control circuitry comprises a write driver configured to generate a write signal for data to be written to the storage disk, and a ultiple-slope transition controller associated with the write driver and configured to control a data transition in the write signal such that the data transition comprises at least two different segments each having a different slope, with the transition controller comprising separate slope control mechanisms for each of the segments. By way of example, the data transition may comprise a dual-slope transition having first and second segments arranged sequentially between a start point and an end point of the data transition, with the slope of the first segment being than or less than the slope of the second segment.
摘要翻译：硬盘驱动器或其他基于磁盘的存储设备包括存储盘，被配置为从盘读取数据并向盘写入数据的读/写头，以及耦合到或与读/写头相关联的控制电路。所述控制电路包括写入驱动器，所述写入驱动器经配置以产生用于写入所述存储盘的数据的写信号，以及与所述写入驱动器相关联并被配置为控制所述写入信号中的数据转换的最小斜率转换控制器，转变包括至少两个不同的段，每个段具有不同的斜率，转移控制器包括用于每个段的单独的斜率控制机构。作为示例，数据转换可以包括具有在数据转换的起始点和终点之间顺序排列的第一和第二段的双斜率转换，第一段的斜率大于或小于第二段。

3. 发明公开

EP2637171A3 Storage device having write signal with multiple-slope data transition 审中-公开
标题翻译：与具有多个梯度数据传送写入信号的存储器设备
公开(公告)号：EP2637171A3
公开(公告)日：2015-10-14
申请号：EP13158612.5
申请日：2013-03-11
申请人： LSI Corporation
发明人： Livshitz, Boris , Gleason, Jeffrey A. , Goldberg, Jason S. , Mazur, Paul , Rabe, Cameron C.
IPC分类号： G11B20/10 , G11B5/02 , G11B5/09
CPC分类号： G11B20/10009 , G11B5/02
摘要： A hard disk drive or other disk-based storage device comprises a storage disk, a read/write head configured to read data from and write data to the disk, and control circuitry coupled to or otherwise associated with the read/write head. The control circuitry comprises a write driver configured to generate a write signal for data to be written to the storage disk, and a ultiple-slope transition controller associated with the write driver and configured to control a data transition in the write signal such that the data transition comprises at least two different segments each having a different slope, with the transition controller comprising separate slope control mechanisms for each of the segments. By way of example, the data transition may comprise a dual-slope transition having first and second segments arranged sequentially between a start point and an end point of the data transition, with the slope of the first segment being than or less than the slope of the second segment.

4. 发明公开

EP2613317A1 Heat assisted magnetic recording system 有权转让
标题翻译：自动化系统（Aufzeichnungssystem）
公开(公告)号：EP2613317A1
公开(公告)日：2013-07-10
申请号：EP12186507.5
申请日：2012-09-28
申请人： LSI Corporation
发明人： Wilson, Ross S. , Goldberg, Jason S.
IPC分类号： G11B5/09 , G11B5/02
摘要： Various embodiments of the present invention provide apparatuses, systems and methods for heat assisted magnetic recording. For example, an apparatus is disclosed that includes a signal generator operable to generate laser trigger pulses (240) at the transition rate of the magnetic write data signal (216), a variable delay element (446) operable to control an alignment between the laser pulse control signal (240) and the magnetic write data signal (216), a phase difference detector (262) operable to control the variable delay element (446), a triggerable pulse generator circuit operable to generate a laser pulse control signal (264) based on the laser trigger pulses (240), a magnetic write head (232) operable to record data to a magnetic storage medium under control of the magnetic write data signal (216), and a laser diode (242) operable to heat the magnetic storage medium under control of the laser pulse control signal (264).
摘要翻译：本发明的各种实施例提供了用于热辅助磁记录的装置，系统和方法。例如，公开了一种装置，其包括可操作以以磁写数据信号（216）的转变速率产生激光触发脉冲（240）的信号发生器，可操作以控制激光器之间的对准的可变延迟元件（446）脉冲控制信号（240）和磁写数据信号（216），可操作以控制可变延迟元件（446）的相位差检测器（262），可操作以产生激光脉冲控制信号（264）的可触发脉冲发生器电路基于所述激光触发脉冲（240），在所述磁写数据信号（216）的控制下可操作以将数据记录到磁存储介质的磁写头（232）;以及激光二极管（242），其可操作以加热所述磁存储介质在激光脉冲控制信号的控制下（264）。

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