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1. 发明授权

US08773809B2 Systems and methods for medium proximity detection in a read channel 有权
标题翻译：在读通道中进行中等接近检测的系统和方法
公开(公告)号：US08773809B2
公开(公告)日：2014-07-08
申请号：US13690435
申请日：2012-11-30
申请人： LSI Corporation
发明人： Ming Jin , Erich F. Haratsch , Jason S. Goldberg , Kurt J. Worrell , Scott M. Dziak , Jeffrey P. Grundvig
IPC分类号： G11B21/02
CPC分类号： G11B27/36 , G11B5/6076 , G11B2220/2516
摘要： A contact event between a sensing device and a storage medium is detected by receiving a signal indicating a physical proximity between the sensing device and the storage medium; generating a plurality of frequency bin outputs; comparing one or more frequency bin outputs to a corresponding first level threshold to yield a corresponding comparator output; summing the comparator output with at least one prior instance of the comparator output to yield an aggregated value; comparing the aggregated value to an aggregate threshold to yield an aggregate output; and generating a contact event output if one or more of a first group of the plurality of frequency bin outputs has an associated aggregate output set to a predefined binary value and a predefined minimum number of a second group of the plurality of frequency bin outputs has an associated aggregate output set to a predefined binary value.
摘要翻译：通过接收指示感测装置和存储介质之间的物理接近的信号来检测感测装置和存储介质之间的接触事件; 产生多个频率仓输出; 将一个或多个频率仓输出与相应的第一电平阈值进行比较以产生相应的比较器输出; 将比较器输出与比较器输出的至少一个先前实例相加以产生聚合值; 将聚合值与聚合阈值进行比较以产生总产出; 以及如果所述多个频率仓输出中的第一组中的一个或多个具有设置为预定二进制值的相关联的聚合输出并且所述多个频率仓输出中的第二组的预定最小数量具有关联的聚合输出设置为预定义的二进制值。

2. 发明申请

US20140104716A1 PREAMPLIFIER-TO-CHANNEL COMMUNICATION IN A STORAGE DEVICE 有权
标题翻译：存储设备中的前置通道到通道通信
公开(公告)号：US20140104716A1
公开(公告)日：2014-04-17
申请号：US13650474
申请日：2012-10-12
申请人： LSI CORPORATION
发明人： Ross S. Wilson , Jason S. Goldberg
IPC分类号： G11B5/09
CPC分类号： G11B5/09
摘要： An apparatus comprising a preamplifier, a channel, and a controller. The preamplifier may be configured to read/write data to a drive with a read/write head, in response to (i) a plurality of digital control signals multiplexed to be sent/received over a first bus and (ii) one or more analog data signals sent/received over a second bus. The channel may be configured to (i) connect to the first and second bus, and (ii) send/receive the plurality of digital control signals through (a) a plurality of interconnects and (b) the first bus. The controller may be configured to send/receive the digital control signals over the interconnects. The apparatus may be configured to (i) read/write the analog data signals to the drive and (ii) generate the digital control signals, in response to one or more input/output requests received from a drive interface.
摘要翻译：一种包括前置放大器，通道和控制器的装置。响应于（i）多路复用以通过第一总线发送/接收的多个数字控制信号，以及（ii）一个或多个模拟信号，前置放大器可以被配置为向具有读/写头的驱动器读/写数据通过第二总线发送/接收的数据信号。信道可以被配置为（i）连接到第一和第二总线，以及（ii）通过（a）多个互连和（b）第一总线发送/接收多个数字控制信号。控制器可以被配置为通过互连发送/接收数字控制信号。该装置可以被配置为（i）响应于从驱动器接口接收到的一个或多个输入/输出请求，将模拟数据信号读取/写入驱动器和（ii）生成数字控制信号。

3. 发明申请

US20140240864A1 STORAGE DEVICE HAVING DEGAUSS CIRCUITRY CONFIGURED FOR GENERATING DEGAUSS SIGNAL WITH ASYMMETRIC DECAY ENVELOPES 有权
标题翻译：具有不平衡衰减信号配置的等离子体电路的存储器件
公开(公告)号：US20140240864A1
公开(公告)日：2014-08-28
申请号：US13873355
申请日：2013-04-30
申请人： LSI Corporation
发明人： Boris Livshitz , Paul Mazur , Anamul Hoque , Jason S. Goldberg
IPC分类号： G11B5/09 , G11B20/10
CPC分类号： G11B20/10481 , G11B5/465 , G11B20/10027
摘要： A hard disk drive or other storage device comprises a storage medium, a write head configured to write data to the storage medium, and control circuitry coupled to the write head. The control circuitry comprises degauss circuitry coupled to or otherwise associated with one or more write drivers. The degauss circuitry is configured to generate an asymmetric degauss signal to be applied to the write head. The asymmetric degauss signal has a waveform with upper and lower decay envelopes that are asymmetric about a specified degauss current level, such as a substantially zero current level.
摘要翻译：硬盘驱动器或其他存储设备包括存储介质，被配置为将数据写入存储介质的写入头和耦合到写入头的控制电路。控制电路包括耦合到一个或多个写入驱动器或以其它方式与一个或多个写入驱动器相关联的消磁电路。消磁电路被配置为产生要施加到写入头的不对称消磁信号。不对称消磁信号具有波形，其具有对于指定的消磁电流水平（例如基本为零电流水平）不对称的上部和下部衰减包络。

4. 发明授权

US09153249B1 Cross-talk measurement in array reader magnetic recording system 有权
标题翻译：阵列阅读器磁记录系统的串扰测量
公开(公告)号：US09153249B1
公开(公告)日：2015-10-06
申请号：US14259388
申请日：2014-04-23
申请人： LSI Corporation
发明人： Travis Oenning , Ross S. Wilson , David W. Kelly , Jason S. Goldberg
IPC分类号： G11B5/02 , G11B5/035
CPC分类号： G11B20/10388 , G11B5/012 , G11B5/035 , G11B5/09 , G11B5/3948 , G11B20/10009 , G11B20/10046 , G11B20/10305 , G11B20/10351
摘要： An apparatus for measuring cross-talk in an array reader magnetic storage system includes an array reader with multiple read heads operable to read data from a magnetic storage medium, a first preamplifier connected to a first read head, a second preamplifier connected to a second read head, and a cross-talk measurement circuit connected to the first preamplifier and to the second preamplifier, operable to measure cross-talk between a first signal from the first read head and a second signal from the second read head.
摘要翻译：一种用于在阵列读取器磁存储系统中测量串扰的装置，包括阵列读取器，其具有可操作以从磁存储介质读取数据的多个读取头，连接到第一读取头的第一前置放大器，连接到第二读取器的第二前置放大器头部和连接到第一前置放大器和第二前置放大器的串扰测量电路，可操作以测量来自第一读取头的第一信号和来自第二读取头的第二信号之间的串扰。

5. 发明申请

US20130148230A1 Systems and Methods for Medium Proximity Detection in a Read Channel 有权
标题翻译：读通道中接近检测的系统和方法
公开(公告)号：US20130148230A1
公开(公告)日：2013-06-13
申请号：US13690435
申请日：2012-11-30
申请人： LSI Corporation
发明人： Ming Jin , Erich F. Haratsch , Jason S. Goldberg , Kurt J. Worrell , Scott M. Dziak , Jeffrey P. Grundvig
IPC分类号： G11B27/36
CPC分类号： G11B27/36 , G11B5/6076 , G11B2220/2516
摘要： A contact event between a sensing device and a storage medium is detected by receiving a signal indicating a physical proximity between the sensing device and the storage medium; generating a plurality of frequency bin outputs; comparing one or more frequency bin outputs to a corresponding first level threshold to yield a corresponding comparator output; summing the comparator output with at least one prior instance of the comparator output to yield an aggregated value; comparing the aggregated value to an aggregate threshold to yield an aggregate output; and generating a contact event output if one or more of a first group of the plurality of frequency bin outputs has an associated aggregate output set to a predefined binary value and a predefined minimum number of a second group of the plurality of frequency bin outputs has an associated aggregate output set to a predefined binary value.
摘要翻译：通过接收指示感测装置和存储介质之间的物理接近的信号来检测感测装置和存储介质之间的接触事件; 产生多个频率仓输出; 将一个或多个频率仓输出与相应的第一电平阈值进行比较以产生相应的比较器输出; 将比较器输出与比较器输出的至少一个先前实例相加以产生聚合值; 将聚合值与聚合阈值进行比较以产生总产出; 以及如果所述多个频率仓输出中的第一组中的一个或多个具有设置为预定二进制值的相关联的聚合输出并且所述多个频率仓输出中的第二组的预定最小数量具有关联的聚合输出设置为预定义的二进制值。

6. 发明申请

US20150302887A1 Cross-Talk Measurement In Array Reader Magnetic Recording System 有权
标题翻译：阵列读写器磁记录系统中的串扰测量
公开(公告)号：US20150302887A1
公开(公告)日：2015-10-22
申请号：US14259388
申请日：2014-04-23
申请人： LSI Corporation
发明人： Travis Oenning , Ross S. Wilson , David W. Kelly , Jason S. Goldberg
IPC分类号： G11B20/10
CPC分类号： G11B20/10388 , G11B5/012 , G11B5/035 , G11B5/09 , G11B5/3948 , G11B20/10009 , G11B20/10046 , G11B20/10305 , G11B20/10351
摘要： An apparatus for measuring cross-talk in an array reader magnetic storage system includes an array reader with multiple read heads operable to read data from a magnetic storage medium, a first preamplifier connected to a first read head, a second preamplifier connected to a second read head, and a cross-talk measurement circuit connected to the first preamplifier and to the second preamplifier, operable to measure cross-talk between a first signal from the first read head and a second signal from the second read head.
摘要翻译：一种用于在阵列读取器磁存储系统中测量串扰的装置，包括阵列读取器，其具有可操作以从磁存储介质读取数据的多个读取头，连接到第一读取头的第一前置放大器，连接到第二读取的第二前置放大器头部和连接到第一前置放大器和第二前置放大器的串扰测量电路，可操作以测量来自第一读取头的第一信号和来自第二读取头的第二信号之间的串扰。

7. 发明授权

US08873188B2 Storage device having degauss circuitry configured for generating degauss signal with asymmetric decay envelopes 有权
标题翻译：具有消磁电路的存储装置被配置为用非对称衰减包络产生消磁信号
公开(公告)号：US08873188B2
公开(公告)日：2014-10-28
申请号：US13873355
申请日：2013-04-30
申请人： LSI Corporation
发明人： Boris Livshitz , Paul Mazur , Anamul Hoque , Jason S. Goldberg
IPC分类号： G11B5/03 , G11B5/09 , G11B20/10
CPC分类号： G11B20/10481 , G11B5/465 , G11B20/10027
摘要： A hard disk drive or other storage device comprises a storage medium, a write head configured to write data to the storage medium, and control circuitry coupled to the write head. The control circuitry comprises degauss circuitry coupled to or otherwise associated with one or more write drivers. The degauss circuitry is configured to generate an asymmetric degauss signal to be applied to the write head. The asymmetric degauss signal has a waveform with upper and lower decay envelopes that are asymmetric about a specified degauss current level, such as a substantially zero current level.
摘要翻译：硬盘驱动器或其他存储设备包括存储介质，被配置为将数据写入存储介质的写入头和耦合到写入头的控制电路。控制电路包括耦合到一个或多个写入驱动器或以其它方式与一个或多个写入驱动器相关联的消磁电路。消磁电路被配置为产生要施加到写入头的不对称消磁信号。不对称消磁信号具有波形，其具有对于指定的消磁电流水平（例如基本为零电流水平）不对称的上部和下部衰减包络。

8. 发明授权

US08711502B1 Preamplifier-to-channel communication in a storage device 有权
标题翻译：存储设备中的前置放大器到通道通信
公开(公告)号：US08711502B1
公开(公告)日：2014-04-29
申请号：US13650474
申请日：2012-10-12
申请人： LSI Corporation
发明人： Ross S. Wilson , Jason S. Goldberg
IPC分类号： G11B5/09
CPC分类号： G11B5/09
摘要： An apparatus comprising a preamplifier, a channel, and a controller. The preamplifier may be configured to read/write data to a drive with a read/write head, in response to (i) a plurality of digital control signals multiplexed to be sent/received over a first bus and (ii) one or more analog data signals sent/received over a second bus. The channel may be configured to (i) connect to the first and second bus, and (ii) send/receive the plurality of digital control signals through (a) a plurality of interconnects and (b) the first bus. The controller may be configured to send/receive the digital control signals over the interconnects. The apparatus may be configured to (i) read/write the analog data signals to the drive and (ii) generate the digital control signals, in response to one or more input/output requests received from a drive interface.
摘要翻译：一种包括前置放大器，通道和控制器的装置。响应于（i）多路复用以通过第一总线发送/接收的多个数字控制信号，以及（ii）一个或多个模拟信号，前置放大器可以被配置为向具有读/写头的驱动器读/写数据通过第二总线发送/接收的数据信号。信道可以被配置为（i）连接到第一和第二总线，以及（ii）通过（a）多个互连和（b）第一总线发送/接收多个数字控制信号。控制器可以被配置为通过互连发送/接收数字控制信号。该装置可以被配置为（i）响应于从驱动器接口接收到的一个或多个输入/输出请求，将模拟数据信号读取/写入驱动器和（ii）生成数字控制信号。

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