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1. 发明授权

US06130798A Hardware PES calculator 失效
标题翻译：硬件PES计算器
公开(公告)号：US06130798A
公开(公告)日：2000-10-10
申请号：US937103
申请日：1997-09-24
申请人： Dar-Der Chang , Richard K. Wong
发明人： Dar-Der Chang , Richard K. Wong
IPC分类号： G11B5/55 , G11B5/596 , G11B21/10
CPC分类号： G11B5/5534 , G11B5/59688
摘要： In the disk controller in a hard disk system, the microcontroller is an integral part of the servo positioning system. The servo positioning system is the system responsible for positioning the read/write heads. This involves moving the read/write heads from track to track and holding the head in place as data is read or written. A time and calculation intensive portion of the control algorithm is the calculation of the position error signal, which represents the degree to which the actual position of the head varies from the desired position. A hardware position error signal circuit is provided to calculate this signal, thus freeing microprocessor bandwidth for other tasks and facilitating a more stable controller. Furthermore, a circuit for adjusting erroneous cylinder numbers is provided.
摘要翻译：在硬盘系统中的磁盘控制器中，微控制器是伺服定位系统的组成部分。伺服定位系统是负责定位读/写头的系统。这涉及将读/写头从轨道移动到轨道，并且在读取或写入数据时将头保持在适当位置。控制算法的时间和计算密集部分是位置误差信号的计算，其表示头部的实际位置与期望位置变化的程度。提供硬件位置误差信号电路来计算该信号，从而释放用于其他任务的微处理器带宽，并且便于更稳定的控制器。此外，提供了用于调整错误气缸数的电路。

2. 发明申请

US20090034110A1 DISK DRIVE APPARATUS AND MULTI-TASKING METHOD 审中-公开
标题翻译：磁盘驱动器和多任务方法
公开(公告)号：US20090034110A1
公开(公告)日：2009-02-05
申请号：US11830745
申请日：2007-07-30
申请人： Stephen G. Paul , Dar-Der Chang
发明人： Stephen G. Paul , Dar-Der Chang
IPC分类号： G11B5/02
CPC分类号： G11B20/10 , G11B2020/10777
摘要： A disk drive apparatus is shown that provides multi-tasking of firmware and hardware separately. A shared data structure is shown that permits queuing of multiple task requests and storing of multiple task results for later use, decreasing a need for wait time between components such as disk drive firmware and hardware. Further efficiencies are provided, including power saving modes when higher power disk drive components are not in use.
摘要翻译：示出了分别提供固件和硬件的多任务的磁盘驱动装置。示出了共享数据结构，其允许排队多个任务请求并存储多个任务结果以供稍后使用，减少了诸如磁盘驱动器固件和硬件之类的组件之间的等待时间的需要。提供更高的效率，包括在不使用较高功率的磁盘驱动器组件时的省电模式。

3. 发明申请

US20080239548A1 Multiple sector reassign on write error for disk drive 审中-公开
标题翻译：多扇区重新分配磁盘驱动器的写入错误
公开(公告)号：US20080239548A1
公开(公告)日：2008-10-02
申请号：US11731217
申请日：2007-03-30
申请人： Stephen G. Paul , Dar-Der Chang
发明人： Stephen G. Paul , Dar-Der Chang
IPC分类号： G11B21/02
CPC分类号： G11B19/048 , G11B20/1883 , G11B2020/1823 , G11B2020/1826 , G11B2020/1893 , G11B2220/20 , G11B2220/2516
摘要： A disk drive includes a disk for storing information representing data, and a memory device. A method for writing includes locating a first data sector on a disk where a write operation fails, identifying the first data sector and a plurality of other data sectors near the first data sector as a grown defect, and storing the location of the first data sector and the plurality of other data sectors on a grown defect list. The memory device includes a list of grown defects that identifies a plurality of data sectors stored along a track between the first servo wedge and the second servo wedge on a selected track as data sectors which may not be written to.
摘要翻译：磁盘驱动器包括用于存储表示数据的信息的盘，以及存储装置。一种写入方法包括将写入操作失败的盘上的第一数据扇区定位为识别第一数据扇区和第一数据扇区附近的多个其他数据扇区作为生长缺陷，以及存储第一数据扇区的位置以及生长的缺陷列表上的多个其他数据扇区。存储器装置包括生成的缺陷的列表，其识别沿着所选轨道上的第一伺服楔和第二伺服楔之间的轨道存储的多个数据扇区作为可能不被写入的数据扇区。

4. 发明申请

US20110304935A1 FLOATING GUARD BAND FOR SHINGLE MAGNETIC RECORDING 有权
标题翻译：浮动保护带用于振动磁记录
公开(公告)号：US20110304935A1
公开(公告)日：2011-12-15
申请号：US12797963
申请日：2010-06-10
申请人： Dar-Der Chang , Keng Hong , Byeung Jun Lee , Xin Guo
发明人： Dar-Der Chang , Keng Hong , Byeung Jun Lee , Xin Guo
IPC分类号： G11B5/09
CPC分类号： G11B5/012 , G11B20/1217 , G11B2020/1277 , G11B2020/1297 , G11B2220/2516
摘要： A hard disk drive that includes a disk with data written onto a plurality of tracks, a spindle motor that rotates the disk, and a head that is coupled to the disk. The disk drive also includes a circuit that writes data onto a first writable shingle band of tracks if the first writable shingle band is adjacent to a guard band of tracks. The first writable shingle band includes a number of tracks that is a function of a head width. The guard band of tracks is capable of becoming a writable shingle band. Changing the designation of a shingle band between guard and writable creates floating guard bands. The creation of floating guard bands allows for the writing of a single band without having to move and restore adjacent tracks until reaching a fixed guard band as required in the prior art.
摘要翻译：一种硬盘驱动器，其包括具有写入多个磁道的数据的磁盘，旋转该磁盘的主轴电机和耦合到该磁盘的磁头。磁盘驱动器还包括一个电路，如果第一可写入板带与磁道的保护带相邻，则将数据写入轨道的第一可写入板带上。第一可写入板带包括多个磁道，其是磁头宽度的函数。轨道的守卫带能够成为一个可写的木瓦带。改变防护和可写之间的瓦楞带的名称会创建浮动防护带。浮动保护带的创建允许写入单个频带，而不必移动和恢复相邻轨道，直到达到现有技术中所需的固定保护频带。

5. 发明申请

US20090034109A1 DISK DRIVE APPARATUS AND MEDIA DEFECT DETECTION METHOD 审中-公开
标题翻译：磁盘驱动装置和介质缺陷检测方法
公开(公告)号：US20090034109A1
公开(公告)日：2009-02-05
申请号：US11830724
申请日：2007-07-30
申请人： Stephen G. Paul , Dar-Der Chang
发明人： Stephen G. Paul , Dar-Der Chang
IPC分类号： G11B5/09 , G11B27/36 , G11C29/00
CPC分类号： G11B20/1833 , G11B20/1816 , G11B2020/1287 , G11B2220/2516
摘要： According to one embodiment, a disk drive apparatus includes a defect table formed using more than one defect detection standard. Methods and devices are described using different defect detection standards to detect and map defects of different sizes and in specific regions that can affect drive operation. Also, methods and devices are described that provide fast and efficient defect scanning in selected regions due to utilization of error correction systems. Methods are shown where during defect detection a read/write gate assertion is triggered using a servo gate pulse.
摘要翻译：根据一个实施例，盘驱动装置包括使用多于一个缺陷检测标准形成的缺陷表。使用不同的缺陷检测标准来描述方法和设备，以检测和映射不同尺寸的缺陷并且可能影响驱动器操作的特定区域。此外，描述了由于使用纠错系统而在选定区域中提供快速且有效的缺陷扫描的方法和装置。示出了在缺陷检测期间使用伺服门脉冲触发读/写门断言的方法。

6. 发明授权

US08179627B2 Floating guard band for shingle magnetic recording 有权
标题翻译：浮动保护带用于瓦片磁记录
公开(公告)号：US08179627B2
公开(公告)日：2012-05-15
申请号：US12797963
申请日：2010-06-10
申请人： Dar-Der Chang , Ken Hong , Byeung Jun Lee , Xin Guo
发明人： Dar-Der Chang , Ken Hong , Byeung Jun Lee , Xin Guo
IPC分类号： G11B5/09
CPC分类号： G11B5/012 , G11B20/1217 , G11B2020/1277 , G11B2020/1297 , G11B2220/2516
摘要： A hard disk drive that includes a disk with data written onto a plurality of tracks, a spindle motor that rotates the disk, and a head that is coupled to the disk. The disk drive also includes a circuit that writes data onto a first writable shingle band of tracks if the first writable shingle band is adjacent to a guard band of tracks. The first writable shingle band includes a number of tracks that is a function of a head width. The guard band of tracks is capable of becoming a writable shingle band. Changing the designation of a shingle band between guard and writable creates floating guard bands. The creation of floating guard bands allows for the writing of a single band without having to move and restore adjacent tracks until reaching a fixed guard band as required in the prior art.
摘要翻译：一种硬盘驱动器，其包括具有写入多个磁道的数据的磁盘，旋转该磁盘的主轴电机和耦合到该磁盘的磁头。磁盘驱动器还包括一个电路，如果第一个可写入的瓦带与轨道的保护带相邻，则将数据写入轨道的第一可写入板带上。第一可写入板带包括多个磁道，其是磁头宽度的函数。轨道的守卫带能够成为一个可写的木瓦带。改变防护和可写之间的瓦楞带的名称会创建浮动防护带。浮动保护带的创建允许写入单个频带，而不必移动和恢复相邻轨道，直到达到现有技术中所需的固定保护频带。

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