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1. 发明授权

US06252731B1 Parametric optimization using disc drive read channel quality measurements 失效
标题翻译：使用磁盘驱动器进行参数优化读取通道质量测量
公开(公告)号：US06252731B1
公开(公告)日：2001-06-26
申请号：US09016725
申请日：1998-01-30
申请人： Brett Alan Sloan , Karl Louis Enarson , Shawn Alan Wakefield
发明人： Brett Alan Sloan , Karl Louis Enarson , Shawn Alan Wakefield
IPC分类号： G11B2736
CPC分类号： G11B27/36 , G11B5/012 , G11B19/04 , G11B20/10009 , G11B20/10055 , G11B20/10481 , G11B33/10 , G11B2005/001 , G11B2020/1282 , G11B2220/20
摘要： An apparatus and method are disclosed for optimizing the operational performance of a disc drive having a head adjacent a rotatable disc, a servo circuit which controls the position of the head and a read channel for decoding read signals from the head to reconstruct data previously stored on the disc. The read channel includes a channel quality monitor which generates a channel quality measurement indicative of read channel quality, the channel quality measurement determined from error values associated with the data reconstructed by the read channel from the read signal. An optimum value for a selected parameter affecting disc drive performance is selected by determining an associated quality measurement value for each of a plurality of parameter values, and selecting the optimum value for the parameter in relation to the associated quality measurement values. Preferably, each associated quality measurement value is determined in less than one revolution of the disc.
摘要翻译：公开了一种用于优化具有与可旋转盘相邻的头部的盘驱动器的操作性能的装置和方法，控制头部位置的伺服电路和用于解码来自头部的读取信号的读取通道，以重建先前存储在光盘。读通道包括通道质量监视器，其产生指示读信道质量的信道质量测量，从与读信号重构的数据相关联的误差值确定信道质量测量。通过为多个参数值中的每一个确定相关联的质量测量值，并且相对于相关联的质量测量值选择参数的最佳值来选择影响盘驱动器性能的所选参数的最佳值。优选地，在盘的小于一圈内确定每个相关联的质量测量值。

2. 发明申请

US20100262857A1 DATA STORAGE DEVICE INCLUDING A FAILURE DIAGNOSTIC LOG 有权
标题翻译：数据存储设备，包括故障诊断日志
公开(公告)号：US20100262857A1
公开(公告)日：2010-10-14
申请号：US12422607
申请日：2009-04-13
申请人： Karl Louis Enarson , John Edward Moon
发明人： Karl Louis Enarson , John Edward Moon
IPC分类号： G06F12/02 , G06F11/07
CPC分类号： G06F11/0766 , G06F11/073
摘要： In a particular embodiment, a data storage device is disclosed that can include a data storage medium having a device failure partition including a device failure log to store operational state information. The operational state information can include commands, data, performance data, and environmental data associated with the data storage device. The data storage device can further include a controller adapted to selectively store the operational state information to the device failure log in a first-in first-out (FIFO) order representing recent states of the data storage device.
摘要翻译：在特定实施例中，公开了一种数据存储设备，其可以包括具有设备故障分区的数据存储介质，该设备故障分区包括用于存储操作状态信息的设备故障日志。操作状态信息可以包括与数据存储设备相关联的命令，数据，性能数据和环境数据。数据存储设备还可以包括适于以表示数据存储设备的最近状态的先进先出（FIFO）顺序选择性地将操作状态信息存储到设备故障日志的控制器。

3. 发明授权

US08327193B2 Data storage device including a failure diagnostic log 有权
标题翻译：数据存储设备包括故障诊断日志
公开(公告)号：US08327193B2
公开(公告)日：2012-12-04
申请号：US12422607
申请日：2009-04-13
申请人： Karl Louis Enarson , John Edward Moon
发明人： Karl Louis Enarson , John Edward Moon
IPC分类号： G06F11/00
CPC分类号： G06F11/0766 , G06F11/073
摘要： In a particular embodiment, a data storage device is disclosed that can include a data storage medium having a device failure partition including a device failure log to store operational state information. The operational state information can include commands, data, performance data, and environmental data associated with the data storage device. The data storage device can further include a controller adapted to selectively store the operational state information to the device failure log in a first-in first-out (FIFO) order representing recent states of the data storage device.
摘要翻译：在特定实施例中，公开了一种数据存储设备，其可以包括具有设备故障分区的数据存储介质，该设备故障分区包括用于存储操作状态信息的设备故障日志。操作状态信息可以包括与数据存储设备相关联的命令，数据，性能数据和环境数据。数据存储设备还可以包括适于以表示数据存储设备的最近状态的先进先出（FIFO）顺序选择性地将操作状态信息存储到设备故障日志的控制器。

4. 发明授权

US6115201A Disc drive head bias current optimization 失效
标题翻译：光盘驱动头偏置电流优化
公开(公告)号：US6115201A
公开(公告)日：2000-09-05
申请号：US40667
申请日：1998-03-18
申请人： Karl Louis Enarson , Deanne Sue Grover , Hieu Van Nguyen , John Michael Baker
发明人： Karl Louis Enarson , Deanne Sue Grover , Hieu Van Nguyen , John Michael Baker
IPC分类号： G11B5/00 , G11B5/012 , G11B5/035 , G11B5/40 , G11B5/455 , G11B5/55 , G11B19/04 , G11B5/03
CPC分类号： G11B5/012 , G11B19/04 , G11B5/40 , G11B5/455 , G11B2005/0018 , G11B5/035 , G11B5/5534
摘要： An apparatus and method are disclosed for determining a maximum magnitude of bias current that can be safely applied to a head of a disc drive. The disc drive comprises a head disposed adjacent a rotatable disc having a recording surface on which data are magnetically stored, a preamplifier circuit which selectively applies bias currents to the head, and a head bias current selection circuit, operably coupled to the preamplifier circuit, which first determines the maximum magnitude of bias current that can be applied to the head in relation to a maximum power dissipation rating of the head and voltage measured across the head when at least one initial bias current of selected magnitude is applied to the head. Thereafter, a range of bias currents having different magnitudes less than or equal to the maximum magnitude are selected and evaluated to select an optimum magnitude for subsequent use by the drive.
摘要翻译：公开了用于确定可以安全地施加到盘驱动器的头部的偏置电流的最大幅度的装置和方法。磁盘驱动器包括一个与可旋转磁盘相邻设置的磁头，磁头具有数据被磁性存储的记录表面，选择性地向磁头施加偏置电流的前置放大器电路和可操作地耦合到前置放大器电路的磁头偏置电流选择电路，当至少一个选定幅度的初始偏置电流施加到磁头时，首先确定可以施加到磁头的偏置电流的最大幅度相对于在头部测量的磁头和电压的最大功率损耗等级。此后，选择并且评估具有小于或等于最大幅度的不同幅度的偏置电流范围，以选择用于驱动器后续使用的最佳量值。

5. 发明授权

US06266203B1 Integrated temperature sense circuit in a disc drive 失效
标题翻译：集成温度检测电路在磁盘驱动器中
公开(公告)号：US06266203B1
公开(公告)日：2001-07-24
申请号：US09052887
申请日：1998-03-31
申请人： David Ray Street , John Michael Baker , Karl Louis Enarson , Timothy Ted Walker , Ronald Duane Metzner , Anish A. Ukani
发明人： David Ray Street , John Michael Baker , Karl Louis Enarson , Timothy Ted Walker , Ronald Duane Metzner , Anish A. Ukani
IPC分类号： G11B502
CPC分类号： G11B5/012 , G11B5/5565 , G11B25/043 , G11B33/144 , G11B2005/001
摘要： A method and apparatus are disclosed for optimizing operational performance of a disc drive. The disc drive is provided with an integrated temperature measurement circuit which provides a temperature measurement signal indicative of operational temperature of the disc drive. The integrated temperature measurement circuit is formed as part of an application specific integrated circuit (ASIC) housing additional circuitry used by the disc drive during operation. A parametric configuration circuit, operably coupled to the integrated temperature measurement circuit, identifies selected parameters for use by the disc drive to optimize disc drive performance, the parameters arranged as a plurality of parameter sets corresponding to a plurality of predefined operational temperature ranges. The parametric configuration circuit periodically measures the operational temperature of the disc drive through evaluation of the temperature measurement signal, identifies the operational temperature range in which the measured operational temperature falls, and implements the parameter set corresponding to the identified operational temperature range.
摘要翻译：公开了一种用于优化盘驱动器的操作性能的方法和装置。盘驱动器配备有集成的温度测量电路，其提供指示盘驱动器的操作温度的温度测量信号。集成温度测量电路形成为在运行期间容纳由磁盘驱动器使用的附加电路的专用集成电路（ASIC）的一部分。可操作地耦合到集成温度测量电路的参数配置电路识别所选择的参数供盘驱动器使用以优化磁盘驱动器性能，该参数被布置为对应于多个预定义的工作温度范围的多个参数组。参数配置电路通过评估温度测量信号周期性地测量磁盘驱动器的工作温度，识别测量的工作温度下降的工作温度范围，并实现与所识别的工作温度范围对应的参数组。

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