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公开(公告)号：US20170033805A1
公开(公告)日：2017-02-02
申请号：US15290880
申请日：2016-10-11
发明人： Ara Patapoutian , Bruce Buch , Rose Shao
CPC分类号： H03M13/1111 , H03M13/1105 , H03M13/3738 , H03M13/3746 , H03M13/3784 , H03M13/616 , H03M13/6325 , H04L1/0057
摘要： An iterative decoder is controlled to iteratively decode a block by performing one or more decoding iterations for the block. The iterative decoder uses a parity-check matrix and can be configured to process that parity-check matrix for parallel, sequential or a combination of parallel and sequential (“hybrid”) parity constraint updates.
摘要翻译： 控制迭代解码器以通过对该块执行一个或多个解码迭代来迭代地解码块。 迭代解码器使用奇偶校验矩阵，并且可以被配置为处理用于并行，顺序或并行和顺序（“混合”）奇偶校验约束更新的组合的奇偶校验矩阵。
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公开(公告)号：US09626989B1
公开(公告)日：2017-04-18
申请号：US14861369
申请日：2015-09-22
发明人： Bruce Buch , Wenzhong Zhu
CPC分类号： G11B5/02 , G11B2005/0021 , G11B2220/252
摘要： A heat-assisted magnetic recording (HAMR) device includes transducer head comprising a heat source and a writer. The HAMR device further includes a power controller configured to selectively power on and off the heat source independent of current flowing through a write coil of the writer based on a position of the transducer head relative to an adjacent rotating media.
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公开(公告)号：US09552252B2
公开(公告)日：2017-01-24
申请号：US14467983
申请日：2014-08-25
发明人： Jon D. Trantham , Brian T. Edgar , Mark Gaertner , Bruce Buch
CPC分类号： G06F11/1004 , G06F11/1012 , H03M13/09 , H03M13/096
摘要： Certain exemplary aspects of the present disclosure are directed towards methods and apparatuses in which logic circuitry generates an error detection code based on user data received from a host, and further generates a first set of check bits, to be written to the non-volatile memory circuit in conjunction with the user data, by combining the error detection code with a hashed data address of the user data. In some embodiments, the check bits associated with the user data providing verification that the user data was written in the appropriate physical block address of the non-volatile memory circuit.
摘要翻译： 本公开的某些示例性方面涉及其中逻辑电路基于从主机接收的用户数据生成错误检测码的方法和装置，并进一步产生要写入非易失性存储器的第一组校验位 通过将错误检测码与用户数据的散列数据地址组合在一起，与用户数据相结合。 在一些实施例中，与用户数据相关联的校验位提供用户数据被写入非易失性存储器电路的适当物理块地址中的验证。
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公开(公告)号：US20160260446A1
公开(公告)日：2016-09-08
申请号：US14636018
申请日：2015-03-02
发明人： Bruce Buch , Stefan A. Ionescu
IPC分类号： G11B5/09
摘要： Transmission signals may generated based on three differential signals and transmitted along a channel. Each of the plurality of transmission signals may include a signal representative of each of the three differential signals. After receiving the transmission signals, the original three differential signals may be generated based on the transmission signals.
摘要翻译： 传输信号可以基于三个差分信号产生并沿着信道传输。 多个发送信号中的每一个可以包括表示三个差分信号中的每一个的信号。 在接收到发送信号之后，可以基于发送信号来生成原始的三个差分信号。
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公开(公告)号：US20160055053A1
公开(公告)日：2016-02-25
申请号：US14467983
申请日：2014-08-25
发明人： Jon D. Trantham , Brian T. Edgar , Mark Gaertner , Bruce Buch
CPC分类号： G06F11/1004 , G06F11/1012 , H03M13/09 , H03M13/096
摘要： Certain exemplary aspects of the present disclosure are directed towards methods and apparatuses in which logic circuitry generates an error detection code based on user data received from a host, and further generates a first set of check bits, to be written to the non-volatile memory circuit in conjunction with the user data, by combining the error detection code with a hashed data address of the user data. In some embodiments, the check bits associated with the user data providing verification that the user data was written in the appropriate physical block address of the non-volatile memory circuit.
摘要翻译： 本公开的某些示例性方面涉及其中逻辑电路基于从主机接收的用户数据生成错误检测码的方法和装置，并进一步产生要写入非易失性存储器的第一组校验位 通过将错误检测码与用户数据的散列数据地址组合在一起，与用户数据相结合。 在一些实施例中，与用户数据相关联的校验位提供用户数据被写入非易失性存储器电路的适当物理块地址中的验证。
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6.发明授权Template misalignment and eccentricity error compensation for a patterned medium 有权图案化介质的模板不对准和偏心误差补偿公开(公告)号：US09269384B1
公开(公告)日：2016-02-23
申请号：US14725858
申请日：2015-05-29
发明人： Bruce Buch
CPC分类号： G11B5/59616 , G11B5/59627
摘要： Compensation for template misalignment and offset induced eccentricity errors for a multi-template patterned medium, such as a bit patterned medium (BPM) used to record data in a data storage device. In some embodiments, a rotatable patterned data recording medium has a plurality of concentric tracks, each track having data fields interspersed with servo fields and timing fields. A data transducer senses the respective data, servo and timing fields on a target track. A disc-locked clock (DLC) circuit generates separate servo clock and data clock signals that are frequency modulated responsive to variations in locations of the timing fields.
摘要翻译： 用于多模板图案化介质（例如用于在数据存储设备中记录数据的位图形介质（BPM））的模板不对准和偏移引起的偏心误差的补偿。 在一些实施例中，可旋转图案化数据记录介质具有多个同心轨道，每个轨道具有分散有伺服场和定时场的数据场。 数据传感器检测目标轨道上的相应数据，伺服和定时字段。 盘锁时钟（DLC）电路产生单独的伺服时钟和数据时钟信号，其响应于定时场的位置变化而被频率调制。
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公开(公告)号：US20150246476A1
公开(公告)日：2015-09-03
申请号：US14194733
申请日：2014-03-02
发明人： Philip Steiner , Kim Y. Lee , Koichi Wago , Bruce Buch , David S. Kuo
CPC分类号： G03F7/0002
摘要： The embodiments disclose an analyzer configured to determine positions of circumferential gratings track features and alignment patterns in a first template and a phase device configured to determine positions of radial gratings features and interspersed pattern fields in a second template, wherein the first template is transferred and cross-imprinted with the second template features and patterns to form a third template substrate as a rectangular patterned stack imprint template.
摘要翻译： 实施例公开了一种分析器，被配置为确定第一模板中的圆周光栅轨迹特征和对准图案的位置，以及被配置为确定第二模板中的径向光栅特征和散布图案场的位置的相位装置，其中第一模板被传送和交叉 用第二模板特征和图案打印，以形成第三模板底物作为矩形图案堆叠印模板。
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公开(公告)号：US10033408B2
公开(公告)日：2018-07-24
申请号：US15290880
申请日：2016-10-11
发明人： Ara Patapoutian , Bruce Buch , Rose Shao
摘要： An iterative decoder is controlled to iteratively decode a block by performing one or more decoding iterations for the block. The iterative decoder uses a parity-check matrix and can be configured to process that parity-check matrix for parallel, sequential or a combination of parallel and sequential (“hybrid”) parity constraint updates.
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公开(公告)号：US09779770B1
公开(公告)日：2017-10-03
申请号：US15174520
申请日：2016-06-06
发明人： Thomas P. Nolan , Bruce Buch , Philip L. Steiner
CPC分类号： G11B5/64
摘要： A three-dimensional magnetic recording media can consist of a single recording layer configured with three or more separate magnetization levels. A first magnetization level can be written to a selected region of said recording layer by applying a first write field to the grains of said region to form a “spin-up” magnetization in the grains of said region. A second magnetization level can be written by applying a second opposite write field to selected grains of said region to form a “spin-down” magnetization. At least a third intermediate magnetization level can be written by applying a weaker or alternating write field to grains of said region to form an intermediate magnetization comprising a mixture of spin-up and spin-down grains. By such method, said region may comprise a data bit capable of storing 3 or more units of information corresponding to the number of separate magnetization levels employed.
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公开(公告)号：US09508361B2
公开(公告)日：2016-11-29
申请号：US14636018
申请日：2015-03-02
发明人： Bruce Buch , Stefan A. Ionescu
IPC分类号： G11B5/09
摘要： Transmission signals may generated based on three differential signals and transmitted along a channel. Each of the plurality of transmission signals may include a signal representative of each of the three differential signals. After receiving the transmission signals, the original three differential signals may be generated based on the transmission signals.
摘要翻译： 传输信号可以基于三个差分信号产生并沿着信道传输。 多个发送信号中的每一个可以包括表示三个差分信号中的每一个的信号。 在接收到发送信号之后，可以基于发送信号来生成原始的三个差分信号。
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