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1. 发明授权

US07116621B2 System and method for handling commands in an optical disc drive 有权
公开(公告)号：US07116621B2
公开(公告)日：2006-10-03
申请号：US09951931
申请日：2001-09-10
申请人： Christopher J. Turner , Michael B. Propps
发明人： Christopher J. Turner , Michael B. Propps
IPC分类号： G11B7/00
CPC分类号： G11B7/1356 , G11B7/08505 , G11B7/08523 , G11B7/08529 , G11B7/08541 , G11B7/08576 , G11B7/09 , G11B7/0901 , G11B7/0912 , G11B7/0938 , G11B7/094 , G11B7/0941 , G11B7/0943 , G11B7/0946 , G11B7/0948 , G11B7/0953 , G11B7/0956 , G11B7/123 , G11B7/131 , G11B19/28
摘要： An optical disc drive waits to receive a command to perform a function on optical media in the disc drive. The optical media includes a pitted premastered area that cannot be overwritten and a grooved user-writeable area that can be overwritten. Once a command is received, one portion of the disc drive processes the command while another portion of the disc drive monitors the processing of the command and waits until the command is processed. If an error condition is detected while processing the command, the disc drive generates an event request such as a notify event request, a focus event request, a spin event request, and a tracking event request. When an event issues, the disc drive interrupts processing of the command and attempts to recover from the error condition. The state of the disc drive when the requested event was received is saved before attempting to recover from the error condition. If the recovery attempt is successful, the saved state of the disc drive is restored, and the interrupted command continues to be processed at the point where the interruption occurred. A command finished event is issued when the command is complete. If the recovery attempt was not successful, the interrupted command is replaced with a servo abort command to terminate the interrupted command.

2. 发明授权

US07051054B1 Method and apparatus for emulating read/write file system on a write-once storage disk 有权
标题翻译：在一次写入存储盘上仿真读/写文件系统的方法和装置
公开(公告)号：US07051054B1
公开(公告)日：2006-05-23
申请号：US09583133
申请日：2000-05-30
申请人： Lane W. Lee , Michael B. Propps
发明人： Lane W. Lee , Michael B. Propps
IPC分类号： G06F12/00 , G06F17/30
CPC分类号： G11B20/1217 , G06F3/0607 , G06F3/0643 , G06F3/0674 , G11B20/1883 , G11B2020/10907 , G11B2020/1259 , G11B2220/20 , Y10S707/99953 , Y10S707/99956
摘要： A method and apparatus for storing, updating, adding, deleting, and locating file system objects on a WORM storage medium, wherein information can be written to, but not erased from, the storage medium. The WORM storage medium has a writeable area that includes a system area and a data area. The system area includes system information regarding the file system objects on the storage medium. A system sector is written starting at one end of the system area, while the content of the file system objects is written in the data area starting at another end of the writeable area. When a change is made to the file system objects in the writeable area, an updated system sector is generated that replaces the previous file system information for those modified file system objects. Since the previous system sector is not erasable, the updated system sector is written in a location in the system area where it will be read before any previous system sectors. The updated system sector overrides file system information in previously generated system sectors. The information required to access all the file system objects on the storage medium may be included in the updated system sector, or in the updated system sector along with one or more of the previously generated system sectors.
摘要翻译：一种用于在WORM存储介质上存储，更新，添加，删除和定位文件系统对象的方法和装置，其中信息可被写入存储介质而不被擦除。 WORM存储介质具有包括系统区域和数据区域的可写入区域。系统区域包括关于存储介质上的文件系统对象的系统信息。从系统区域的一端开始写入系统扇区，而将文件系统对象的内容写入从可写入区域的另一端开始的数据区域。当对可写区域中的文件系统对象进行改变时，生成更新的系统扇区，其替换用于修改的文件系统对象的先前文件系统信息。由于以前的系统扇区不可擦除，更新的系统扇区被写入系统区域中的任何先前系统扇区之前将被读取的位置。更新的系统扇区覆盖先前生成的系统扇区中的文件系统信息。访问存储介质上的所有文件系统对象所需的信息可以与先前生成的系统扇区中的一个或多个一起包括在更新的系统扇区中，或者在更新的系统扇区中。

3. 发明授权

US06823398B1 File system management embedded in a storage device 失效
标题翻译：文件系统管理嵌入到存储设备中
公开(公告)号：US06823398B1
公开(公告)日：2004-11-23
申请号：US09539841
申请日：2000-03-31
申请人： Lane W. Lee , Michael B. Propps , Daniel R. Zaharris
发明人： Lane W. Lee , Michael B. Propps , Daniel R. Zaharris
IPC分类号： G06F300
CPC分类号： G06F17/30106 , G06F3/0622 , G06F3/0635 , G06F3/0685 , Y10S707/99942
摘要： A file system for accessing information on digital storage media is provided by a storage device controller embedded within the storage device. The storage device controller includes an interface component to receive a packet having a file system command. A command decode component in the storage device controller decodes the file system command, and an interface response structure component creates a strategy for performing the file system command. The storage device controller generates an identifier for a file system object and accesses the file system object using the file system object's identifier. A host system coupled to the storage device receives a storage device access request from an application program and generates a command to perform on the file system object based on the storage device access request. The host system uses the identifier to indicate the file system object to be accessed.
摘要翻译：用于访问数字存储介质上的信息的文件系统由嵌入存储设备内的存储设备控制器提供。存储设备控制器包括用于接收具有文件系统命令的分组的接口组件。存储设备控制器中的命令解码组件解码文件系统命令，并且接口响应结构组件创建用于执行文件系统命令的策略。存储设备控制器生成文件系统对象的标识符，并使用文件系统对象的标识符访问文件系统对象。耦合到存储设备的主机系统从应用程序接收存储设备访问请求，并且基于存储设备访问请求生成对文件系统对象执行的命令。主机系统使用标识符来指示要访问的文件系统对象。

4. 发明授权

US06912189B2 Skip list management for a write-once optical disk 失效
标题翻译：跳过一次写入光盘的列表管理
公开(公告)号：US06912189B2
公开(公告)日：2005-06-28
申请号：US10299950
申请日：2002-11-18
申请人： Michael B. Propps , Lane W. Lee , Stanton M. Keeler
发明人： Michael B. Propps , Lane W. Lee , Stanton M. Keeler
IPC分类号： G11B20/18 , G11B5/09
CPC分类号： G11B20/1883 , G11B2020/183 , G11B2020/1873 , G11B2020/1896 , G11B2220/20 , G11B2220/218
摘要： A method and system for managing a plurality of defects that may cause an error during a write operation in a write-once data storage disk is provided. A host system sends a write command to a disk drive that contains the storage disk. The process detects any errors that may occur during the write operation. When an error is detected, a “skip list” containing the addresses of physical sectors on the disk that are to be skipped during a read operation is updated, the write operation is suspended, and the process attempts to rewrite the data in another sector. If the rewrite is performed successfully, the write operation continues. Otherwise, the write operation is terminated and the host device is notified. While the disk drive is operative, the skip list is preferably maintained in a buffer memory, but periodically the entries in the skip list are copied to the disk for permanent storage. Before a read operation begins, the skip list is copied from the disk to the memory. When a file is read from the disk, any “skip sectors” that are encompassed within the file are skipped (i.e., the data in those sectors is not read). The method of this invention is particularly useful in supplementing an error correction code, which typically has difficulty dealing with errors of longer duration.
摘要翻译：提供了一种用于管理在一次写入数据存储盘中的写入操作期间可能引起错误的多个缺陷的方法和系统。主机系统向包含存储磁盘的磁盘驱动器发送写入命令。该过程检测在写入操作期间可能发生的任何错误。当检测到错误时，更新包含在读取操作期间被跳过的盘上的物理扇区的地址的“跳过列表”，暂停写入操作，并且该过程尝试重写另一扇区中的数据。如果重写成功执行，写操作将继续。否则，写入操作被终止并且主机设备被通知。当磁盘驱动器可操作时，跳过列表优选地保存在缓冲存储器中，但是周期性地将跳过列表中的条目复制到用于永久存储的磁盘。在读操作开始之前，将跳过列表从磁盘复制到存储器。当从磁盘读取文件时，跳过文件中包含的任何“跳过扇区”（即，这些扇区中的数据未被读取）。本发明的方法在补充纠错码中特别有用，纠错码通常难以处理较长持续时间的错误。

5. 发明授权

US06738333B1 Format for recording data in a storage disk 失效
标题翻译：在存储磁盘中记录数据的格式
公开(公告)号：US06738333B1
公开(公告)日：2004-05-18
申请号：US09583448
申请日：2000-05-30
申请人： Daniel R. Zaharris , Lane W. Lee , Stanton M. Keeler , Michael B. Propps
发明人： Daniel R. Zaharris , Lane W. Lee , Stanton M. Keeler , Michael B. Propps
IPC分类号： G11B2736
CPC分类号： G11B20/00086 , G11B20/1217 , G11B20/18
摘要： A data storage disk includes a writeable area that allows a user to write data, wherein the data files are written from the outside diameter towards the inside diameter of the writeable area, while file system information is written from the inside diameter towards the outside diameter of the writeable area. This optimizes the use of the writeable area, whether a large number of small data files or a small number of large data files are being stored. To further optimize the use of the writeable area, information may be stored in two or more different error correction code (ECC) block sizes. Thus, information, such as the file system attributes and linking sectors, which contains few bytes may be stored in the smaller ECC block size, while the data may be stored in the larger ECC block size. The data storage disk, may also include a mastered content area.
摘要翻译：数据存储盘包括允许用户写入数据的可写入区域，其中数据文件从外径朝向可写入区域的内径写入，而文件系统信息从内径向外部直径写入可写区。这可以优化可写区域的使用，无论是大量的小数据文件还是少量的大数据文件都被存储。为了进一步优化可写入区域的使用，可以将信息存储在两个或更多个不同的纠错码（ECC）块大小中。因此，可以以更小的ECC块大小存储包含少量字节的诸如文件系统属性和链接扇区的信息，而数据可以以较大的ECC块大小存储。数据存储盘还可以包括已掌握的内容区域。

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