Systems and methods for energy based head contact detection
    1.
    发明授权
    Systems and methods for energy based head contact detection 有权
    基于能量的头部接触检测的系统和方法

    公开(公告)号:US09293164B2

    公开(公告)日:2016-03-22

    申请号:US13894680

    申请日:2013-05-15

    申请人: LSI Corporation

    IPC分类号: G11B5/127 G11B5/60

    CPC分类号: G11B5/6076 G11B5/607

    摘要: The present inventions are related to systems and methods for determining contact between two elements, and more particularly to systems and methods for determining contact between a head assembly and a storage medium.

    摘要翻译: 本发明涉及用于确定两个元件之间的接触的系统和方法,更具体地涉及用于确定头部组件和存储介质之间的接触的系统和方法。

    MULTIPLEXED SYNCHRONOUS SERIAL PORT COMMUNICATION WITH SKEW CONTROL FOR STORAGE DEVICE
    2.
    发明申请
    MULTIPLEXED SYNCHRONOUS SERIAL PORT COMMUNICATION WITH SKEW CONTROL FOR STORAGE DEVICE 有权
    用于存储设备的多路同步串行通信

    公开(公告)号:US20150318030A1

    公开(公告)日:2015-11-05

    申请号:US14267344

    申请日:2014-05-01

    申请人: LSI Corporation

    IPC分类号: G11C7/10

    摘要: A method is provided, for example, to implement multiplexed communication between a controller and a preamplifier in a storage device. For example, multiplexed communication is implemented by controlling a bidirectional serial data line of a digital bus to selectively transmit digital signals in either a first direction from the controller to the preamplifier or a second direction from the preamplifier to the controller, in response to a direction control signal, and concurrently transmitting a synchronous clock signal over a clock signal line of the digital bus from the controller to the preamplifier to synchronize transfer and processing of the digital signals transmitted on the bidirectional serial data line of the digital bus. The direction control signal is transmitted from the controller to the preamplifier on one of the bidirectional serial data line and the clock signal line of the digital bus.

    摘要翻译: 例如,提供了一种在存储设备中实现控制器与前置放大器之间的多路复用通信的方法。 例如,通过控制数字总线的双向串行数据线来实现多路复用通信,以响应于方向选择性地将从控制器的第一方向到前置放大器的数字信号或从前置放大器到控制器的第二方向 控制信号,同时通过数字总线的时钟信号线从控制器向前置放大器发送同步时钟信号,以同步数字总线双向串行数据线上发送的数字信号的传送和处理。 方向控制信号在双向串行数据线和数字总线的时钟信号线之一上从控制器发送到前置放大器。

    Systems and Methods for Synchronization Hand Shaking in a Storage Device
    5.
    发明申请
    Systems and Methods for Synchronization Hand Shaking in a Storage Device 有权
    存储设备中同步握手的系统和方法

    公开(公告)号:US20150243311A1

    公开(公告)日:2015-08-27

    申请号:US14217783

    申请日:2014-03-18

    申请人: LSI Corporation

    IPC分类号: G11B5/596 G06F17/30

    摘要: Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for reporting a synchronization indication and for applying a synchronization window. As an example, a system is discussed that includes: a head assembly including a first read head and a second read head; a down track distance calculation circuit operable to calculate a down track distance between the first read head and the second read head; and a synchronization mark detection circuit. The synchronization mark detection circuit is operable to: assert a synchronization mark window based at a location based at least in part on the down track distance; query a first data set derived from the first read head for a synchronization mark occurring within the synchronization mark window; and query a second data set derived from the second read head for the synchronization mark occurring within the synchronization mark window.

    摘要翻译: 用于数据处理的系统,方法,设备,电路,更具体地涉及用于报告同步指示和应用同步窗口的系统和方法。 作为示例,讨论了包括:包括第一读取头和第二读取头的头组件的系统; 下行轨道距离计算电路,用于计算第一读取头和第二读取头之间的下行轨迹距离; 和同步标记检测电路。 同步标记检测电路可操作用于:至少部分地基于下行轨道距离,在至少一个位置处断言同步标记窗口; 查询从所述第一读取头导出的用于同步标记窗口内出现的同步标记的第一数据集; 并且查询从同步标记窗口中出现的用于同步标记的从第二读取头导出的第二数据集。

    Two dimensional magnetic recording servo system adaptive combination
    7.
    发明授权
    Two dimensional magnetic recording servo system adaptive combination 有权
    二维磁记录伺服系统自适应组合

    公开(公告)号:US08837068B1

    公开(公告)日:2014-09-16

    申请号:US14259424

    申请日:2014-04-23

    申请人: LSI Corporation

    IPC分类号: G11B5/09

    CPC分类号: G11B5/59688 G11B5/59622

    摘要: A servo system includes multiple interpolators operable to interpolate equalized data for multiple signal paths in a two dimensional magnetic recording system to yield interpolated signals at different phases, scaling circuits operable to scale the interpolated signals by adaptive scaling factors, a signal combining circuit operable to combine the scaled signals, a phase tracking circuit operable to select one of the phases of the combined signal, and an error gradient circuit operable to adapt the adaptive scaling factors.

    摘要翻译: 伺服系统包括多个内插器,其可操作以在二维磁记录系统中内插多个信号路径的均衡数据,以产生不同相位的内插信号,缩放电路可操作以通过自适应缩放因子缩放内插信号;信号组合电路,可操作以组合 缩放信号,可操作以选择组合信号的相位之一的相位跟踪电路和可操作以适应自适应缩放因子的误差梯度电路。

    TAG MULTIPLICATION VIA A PREAMPLIFIER INTERFACE
    8.
    发明申请
    TAG MULTIPLICATION VIA A PREAMPLIFIER INTERFACE 有权
    通过前置接口进行标签复用

    公开(公告)号:US20140168809A1

    公开(公告)日:2014-06-19

    申请号:US13719615

    申请日:2012-12-19

    申请人: LSI CORPORATION

    IPC分类号: G11B20/10

    CPC分类号: G11B20/10222

    摘要: An apparatus having a controller and a preamplifier is disclosed. The controller may be configured to generate information on a serial bus coupled to a preamplifier interface. The preamplifier may be configured to (i) generate a count value in response to a clock signal synchronized to a recording medium and (ii) generate a plurality of tag signals based on the information and the count value. The tag signals may gate a read operation and a write operation of the preamplifier.

    摘要翻译: 公开了一种具有控制器和前置放大器的装置。 控制器可以被配置为在耦合到前置放大器接口的串行总线上产生信息。 前置放大器可以被配置为(i)响应于与记录介质同步的时钟信号产生计数值,以及(ii)基于该信息和计数值生成多个标签信号。 标签信号可以选通前置放大器的读取操作和写入操作。

    Multiplexed synchronous serial port communication with skew control for storage device
    9.
    发明授权
    Multiplexed synchronous serial port communication with skew control for storage device 有权
    用于存储设备的多路同步串口通信与偏移控制

    公开(公告)号:US09430148B2

    公开(公告)日:2016-08-30

    申请号:US14267344

    申请日:2014-05-01

    申请人: LSI Corporation

    IPC分类号: G06F13/00 G06F3/06 G11C7/10

    摘要: A method is provided, for example, to implement multiplexed communication between a controller and a preamplifier in a storage device. For example, multiplexed communication is implemented by controlling a bidirectional serial data line of a digital bus to selectively transmit digital signals in either a first direction from the controller to the preamplifier or a second direction from the preamplifier to the controller, in response to a direction control signal, and concurrently transmitting a synchronous clock signal over a clock signal line of the digital bus from the controller to the preamplifier to synchronize transfer and processing of the digital signals transmitted on the bidirectional serial data line of the digital bus. The direction control signal is transmitted from the controller to the preamplifier on one of the bidirectional serial data line and the clock signal line of the digital bus.

    摘要翻译: 例如,提供了一种在存储设备中实现控制器与前置放大器之间的多路复用通信的方法。 例如,通过控制数字总线的双向串行数据线来实现多路复用通信,以响应于方向选择性地将从控制器的第一方向到前置放大器的数字信号或从前置放大器到控制器的第二方向 控制信号,同时通过数字总线的时钟信号线从控制器向前置放大器发送同步时钟信号,以同步数字总线双向串行数据线上发送的数字信号的传送和处理。 方向控制信号在双向串行数据线和数字总线的时钟信号线之一上从控制器发送到前置放大器。