公开(公告)号：US06957300B2

公开(公告)日：2005-10-18

申请号：US10143235

申请日：2002-05-10

申请人： Edwin S. Olds ,  Jack A. Mobley ,  Mark D. Hertz ,  Kenny T. Coker

发明人： Edwin S. Olds ,  Jack A. Mobley ,  Mark D. Hertz ,  Kenny T. Coker

IPC分类号： G06F3/06 ,  G06F12/00 ,  G06F12/08

CPC分类号： G06F3/0601 ,  G06F2003/0697

摘要： Method and apparatus for transferring data between a host device and a data storage device having a first memory space and a second memory space. The host issues access commands to store and retrieve data. The device stores commands in the first memory space pending transfer to the second memory space. An interface circuit evaluates relative proximity of first and second sets of LBAs associated with pending first and second commands, and delays promotion of later pending commands in front of earlier pending commands during an overlap condition. If the overlap is caused by performance enhancing features (PEF) the PEFs are disabled so the commands can be scheduled for disc access. Indicators are set in the commands to signal that a PEF has caused the overlap and that PEF can be disabled. Values are added to indicators in the commands such that the PEFs can be modified and avoid overlaps.

摘要翻译： 用于在主机设备和具有第一存储器空间和第二存储器空间的数据存储设备之间传送数据的方法和装置。 主机发出访问命令来存储和检索数据。 设备将命令存储在第一存储器空间中，等待传送到第二存储器空间。 接口电路评估与等待的第一和第二命令相关联的第一组和第二组LBA的相对接近度，并且在重叠条件期间延迟提前稍早的待命命令。 如果重叠是由性能增强功能（PEF）引起的，则PEF被禁用，因此命令可以被调度用于光盘访问。 在命令中设置指示信号，指示PEF已经引起重叠，并且可以禁用PEF。 将值添加到命令中的指示符中，以便可以修改PEF并避免重叠。

公开(公告)号：US06732292B2

公开(公告)日：2004-05-04

申请号：US10090876

申请日：2002-03-04

申请人： Mark D. Hertz ,  Philip E. Cloud ,  Travis D. Fox ,  Edwin S. Olds

发明人： Mark D. Hertz ,  Philip E. Cloud ,  Travis D. Fox ,  Edwin S. Olds

IPC分类号： G06F1120

CPC分类号： G06F3/0659 ,  G06F3/0613 ,  G06F3/064 ,  G06F3/0676

摘要： Method and apparatus for transferring data between a host device and a data storage device having a first memory space and a second memory space. The host issues access commands to store and retrieve data. The device stores write data associated with write commands in the first memory space pending transfer to the second memory space. An interface circuit evaluates relative proximity of first and second sets of LBAs associated with pending first and second write commands, and forms an adaptive bi-directional write skip mask when the sets of LBAs fit within a predetermined mask interval. The mask is preferably slidably adjustable to encompass both sets of LBAs and is preferably expandable to accommodate additional sets of LBAs. The data within the mask are treated as a combined write command and are thereafter written in an order corresponding to an order in which the data appear in the mask.

摘要翻译： 用于在主机设备和具有第一存储器空间和第二存储器空间的数据存储设备之间传送数据的方法和装置。 主机发出访问命令来存储和检索数据。 该设备将与写命令相关联的写数据存储在第一存储器空间中，等待传送到第二存储器空间。 接口电路评估与待决的第一和第二写命令相关联的第一组和第二组LBA的相对接近度，并且当所述LBA组合在预定的屏蔽间隔内时，形成自适应双向写入跳过掩码。 掩模优选地可滑动地调节以包含两组LBA，并且优选地可扩展以容纳另外的一组LBA。 掩码内的数据被视为组合写入命令，然后以与数据出现在掩码中的顺序相对应的顺序写入。

公开(公告)号：US5146372A

公开(公告)日：1992-09-08

申请号：US540099

申请日：1990-06-19

申请人： Robert Cronch ,  Mark D. Hertz ,  Hieu V. Nguyen

发明人： Robert Cronch ,  Mark D. Hertz ,  Hieu V. Nguyen

IPC分类号： G11B20/10 ,  G11B20/18

CPC分类号： G11B20/10212 ,  G11B20/1816

摘要： Window center settings in a read channel of a magnetic disk drive are controlled. The magnetic disk drive is suitable for reading data from a magnetic disk. A number of read operations are performed and data is read from the magnetic disk. Read errors are detected during the read operations. The number of read errors is recorded and error types are determined. Adjustment of the window center settings is controlled based on the number of read errors detected and the error types determined.