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1. 发明授权

US07594064B2 Free sector manager for data stored in flash memory devices 有权
标题翻译：闪存设备中存储的数据的自由扇区管理器
公开(公告)号：US07594064B2
公开(公告)日：2009-09-22
申请号：US11272913
申请日：2005-11-14
申请人： Jered Aasheim , Yongqi Yang
发明人： Jered Aasheim , Yongqi Yang
IPC分类号： G06F12/10
CPC分类号： G06F12/0246 , G06F2212/7201 , G06F2212/7202 , Y02D10/13
摘要： A flash driver tracks data stored in a flash memory device through the use of logical-to-physical sector mapping. The mapping is stored in a data structure and allows data to be written into the next free physical sector in the flash memory medium. Write operations complete quickly, because there is no need to perform an erase operation in order to write new data on to the flash memory medium. Data loss due to power interruption during a write operation is also minimized by the described implementations. The logical-to-physical sector mapping stored in data structure is backed-up on the flash memory medium. In the event there is a catastrophic power interruption, logical-to-physical sector mapping can easily be reestablished by scanning the backed-up mapping in the flash memory medium. The backed-up information can be stored in a spare portion of a NAND or NOR flash memory medium.
摘要翻译：闪存驱动器通过使用逻辑到物理扇区映射来跟踪存储在闪存设备中的数据。映射被存储在数据结构中，并允许将数据写入闪存介质中的下一个空闲物理扇区。写操作快速完成，因为不需要执行擦除操作，以便将新数据写入闪存介质。在写入操作期间由于电源中断引起的数据丢失也通过所描述的实现来最小化。存储在数据结构中的逻辑到物理扇区映射被备份在闪存介质上。在发生灾难性电源中断的情况下，可以通过扫描闪存介质中的备份映射来轻松重新建立逻辑到物理扇区映射。备份信息可以存储在NAND或NOR闪存介质的备用部分中。

2. 发明授权

US07340647B2 Power failure detection and correction in a flash memory device 有权
标题翻译：闪存设备中的电源故障检测和校正
公开(公告)号：US07340647B2
公开(公告)日：2008-03-04
申请号：US11278861
申请日：2006-04-06
申请人： Jered Aasheim , John Kalkman , Yongqi Yang
发明人： Jered Aasheim , John Kalkman , Yongqi Yang
IPC分类号： G06F11/00
CPC分类号： G06F17/30067 , G06F3/0619 , G06F3/0643 , G06F3/0679 , G06F11/1435 , G06F11/1441 , G06F11/1471 , G06F11/1474 , G06F12/0246 , G06F2212/7201 , G06F2212/7207 , Y02D10/13 , Y10S707/99953 , Y10S707/99955
摘要： A transactional file system developed to function with flash memory is described. The file system performs power-failure detection and ensures data integrity in the event of a power failure. In one described implementation, a power failure event can be detected by a file system, components of the file system, or individual modules in the form or computer-executable instructions and/or logic. Meta-information is stored at a location on a flash medium indicated by a write pointer if a computer device shuts-down according to a normal shutdown mode. During initialization of the computer, a check is performed whether the meta-information is present in the location on the flash medium indicated by the write pointer. If the meta-information is present, then a conclusion is made that the computer shutdown according to the normal shutdown mode.
摘要翻译：描述了开发用于闪存功能的事务文件系统。文件系统执行电源故障检测，并确保电源故障时的数据完整性。在一个描述的实现中，电源故障事件可以由文件系统，文件系统的组件或形式的单个模块或计算机可执行指令和/或逻辑来检测。如果计算机设备根据正常关机模式关闭，则元信息存储在由写指针指示的闪存介质上的位置。在计算机的初始化期间，执行检查是否在由写指针指示的闪存介质上的位置中存在元信息。如果元信息存在，则得出结论，计算机根据正常关机模式关机。

3. 发明申请

US20050216653A1 Transactional file system for flash memory 失效
标题翻译：闪存的事务文件系统
公开(公告)号：US20050216653A1
公开(公告)日：2005-09-29
申请号：US11137033
申请日：2005-05-25
申请人： Jered Aasheim , Yongqi Yang , John Kalkman
发明人： Jered Aasheim , Yongqi Yang , John Kalkman
IPC分类号： G06F12/16 , G06F3/06 , G06F9/445 , G06F11/14 , G06F12/00 , G06F12/02 , G06F12/08
CPC分类号： G06F17/30067 , G06F3/0619 , G06F3/0643 , G06F3/0679 , G06F11/1435 , G06F11/1441 , G06F11/1471 , G06F11/1474 , G06F12/0246 , G06F2212/7201 , G06F2212/7207 , Y02D10/13 , Y10S707/99953 , Y10S707/99955
摘要： A transactional file system developed to function with flash memory is described. The file system provides for efficient storage of file system meta-information, performs robust transaction logging, and performs other related features. In one described implementation, metadata is stored in-line with data. In another embodiment, a transaction log is maintained by storing transaction information associated with requests to perform file transactions. The transaction information is stored at arbitrary physical sector addresses on the flash medium. In still another embodiment, a transaction log is stored in a physical sector of a flash medium. The transaction log contains transaction information associated with performing a file request. Metadata is written into a spare area of the physical sector indicating that the physical sector contains transaction information.
摘要翻译：描述了开发用于闪存功能的事务文件系统。文件系统提供文件系统元信息的高效存储，执行强大的事务日志记录，并执行其他相关功能。在一个描述的实现中，元数据与数据一起存储。在另一个实施例中，通过存储与执行文件事务的请求相关联的事务信息来维护事务日志。交易信息存储在闪存介质上的任意物理扇区地址处。在另一个实施例中，事务日志被存储在闪存介质的物理扇区中。事务日志包含与执行文件请求相关联的事务信息。元数据被写入物理扇区的备用区域，指示物理扇区包含事务信息。

4. 发明申请

US20060059326A1 Dynamic data structures for tracking file system free space in a flash memory device 有权
公开(公告)号：US20060059326A1
公开(公告)日：2006-03-16
申请号：US11267097
申请日：2005-11-04
申请人： Jered Aasheim , John Kalkman , Yongqi Yang
发明人： Jered Aasheim , John Kalkman , Yongqi Yang
IPC分类号： G06F12/10
CPC分类号： G06F12/0246 , G06F2212/7209 , Y10S707/99944 , Y10S707/99947
摘要： One or more secondary data structures are maintained containing mappings of logical flash memory addresses to physical flash memory addresses. Each secondary data structure has a predetermined capacity of mappings. A master data structure is also maintained containing a pointer to each of the one or more secondary data structures. Additional secondary data structures are allocated as needed to provide capacity for additional mappings. One or more counters associated with each of the one or more secondary data structures, respectively, provides an indication of when each of the one or more secondary data structures reaches the predetermined capacity of mappings.

5. 发明申请

US20060168474A1 Power FAilure Detection And Correction In A Flash Memory Device 有权
标题翻译：闪存设备中的电源故障检测和校正
公开(公告)号：US20060168474A1
公开(公告)日：2006-07-27
申请号：US11278861
申请日：2006-04-06
申请人： Jered Aasheim , Yongqi Yang , John Kalkman
发明人： Jered Aasheim , Yongqi Yang , John Kalkman
IPC分类号： G06F11/00
CPC分类号： G06F17/30067 , G06F3/0619 , G06F3/0643 , G06F3/0679 , G06F11/1435 , G06F11/1441 , G06F11/1471 , G06F11/1474 , G06F12/0246 , G06F2212/7201 , G06F2212/7207 , Y02D10/13 , Y10S707/99953 , Y10S707/99955
摘要： A transactional file system developed to function with flash memory is described. The file system performs power-failure detection and ensures data integrity in the event of a power failure. In one described implementation, a power failure event can be detected by a file system, components of the file system, or individual modules in the form or computer-executable instructions and/or logic. Meta-information is stored at a location on a flash medium indicated by a write pointer if a computer device shuts-down according to a normal shutdown mode. During initialization of the computer, a check is performed whether the meta-information is present in the location on the flash medium indicated by the write pointer. If the meta-information is present, then a conclusion is made that the computer shutdown according to the normal shutdown mode.
摘要翻译：描述了开发用于闪存功能的事务文件系统。文件系统执行电源故障检测，并确保电源故障时的数据完整性。在一个描述的实现中，电源故障事件可以由文件系统，文件系统的组件或形式的单个模块或计算机可执行指令和/或逻辑来检测。如果计算机设备根据正常关机模式关闭，则元信息存储在由写指针指示的闪存介质上的位置。在计算机的初始化期间，执行检查是否在由写指针指示的闪存介质上的位置中存在元信息。如果元信息存在，则得出结论，计算机根据正常关机模式关机。

6. 发明申请

US20060064556A1 Dynamic data structures for tracking file system free space in a flash memory device 失效
公开(公告)号：US20060064556A1
公开(公告)日：2006-03-23
申请号：US11267362
申请日：2005-11-04
申请人： Jered Aasheim , Yongqi Yang , John Kalkman
发明人： Jered Aasheim , Yongqi Yang , John Kalkman
IPC分类号： G06F12/08
CPC分类号： G06F12/0246 , G06F2212/7209 , Y10S707/99944 , Y10S707/99947
摘要： One or more secondary data structures are maintained containing mappings of logical flash memory addresses to physical flash memory addresses. Each secondary data structure has a predetermined capacity of mappings. A master data structure is also maintained containing a pointer to each of the one or more secondary data structures. Additional secondary data structures are allocated as needed to provide capacity for additional mappings. One or more counters associated with each of the one or more secondary data structures, respectively, provides an indication of when each of the one or more secondary data structures reaches the predetermined capacity of mappings.

7. 发明申请

US20060179211A1 Power Failure Detection And Correction In A Flash Memory Device 有权
标题翻译：闪存设备中的电源故障检测和校正
公开(公告)号：US20060179211A1
公开(公告)日：2006-08-10
申请号：US11278995
申请日：2006-04-07
申请人： Jered Aasheim , Yongqi Yang , John Kalkman
发明人： Jered Aasheim , Yongqi Yang , John Kalkman
IPC分类号： G06F12/00
CPC分类号： G06F17/30067 , G06F3/0619 , G06F3/0643 , G06F3/0679 , G06F11/1435 , G06F11/1441 , G06F11/1471 , G06F11/1474 , G06F12/0246 , G06F2212/7201 , G06F2212/7207 , Y02D10/13 , Y10S707/99953 , Y10S707/99955
摘要： A transactional file system developed to function with flash memory is described. The file system performs power-failure detection and ensures data integrity in the event of a power failure. In one described implementation, a power failure event can be detected by a file system, components of the file system, or individual modules in the form or computer-executable instructions and/or logic. Meta-information is stored at a location on a flash medium indicated by a write pointer if a computer device shuts-down according to a normal shutdown mode. During initialization of the computer, a check is performed whether the meta-information is present in the location on the flash medium indicated by the write pointer. If the meta-information is present, then a conclusion is made that the computer shutdown according to the normal shutdown mode.
摘要翻译：描述了开发用于闪存功能的事务文件系统。文件系统执行电源故障检测，并确保电源故障时的数据完整性。在一个描述的实现中，电源故障事件可以由文件系统，文件系统的组件或形式的单个模块或计算机可执行指令和/或逻辑来检测。如果计算机设备根据正常关机模式关闭，则元信息存储在由写指针指示的闪存介质上的位置。在计算机的初始化期间，执行检查是否在由写指针指示的闪存介质上的位置中存在元信息。如果元信息存在，则得出结论，计算机根据正常关机模式关机。

8. 发明授权

US07082512B2 Dynamic data structures for tracking file system free space in a flash memory device 失效
公开(公告)号：US07082512B2
公开(公告)日：2006-07-25
申请号：US11267362
申请日：2005-11-04
申请人： Jered Aasheim , Yongqi Yang , John Kalkman
发明人： Jered Aasheim , Yongqi Yang , John Kalkman
IPC分类号： G06F12/10
CPC分类号： G06F12/0246 , G06F2212/7209 , Y10S707/99944 , Y10S707/99947
摘要： One or more secondary data structures are maintained containing mappings of logical flash memory addresses to physical flash memory addresses. Each secondary data structure has a predetermined capacity of mappings. A master data structure is also maintained containing a pointer to each of the one or more secondary data structures. Additional secondary data structures are allocated as needed to provide capacity for additional mappings. One or more counters associated with each of the one or more secondary data structures, respectively, provides an indication of when each of the one or more secondary data structures reaches the predetermined capacity of mappings.

9. 发明授权

US07076599B2 Transactional file system for flash memory 失效
公开(公告)号：US07076599B2
公开(公告)日：2006-07-11
申请号：US11137033
申请日：2005-05-25
申请人： Jered Aasheim , Yongqi Yang , John Kalkman
发明人： Jered Aasheim , Yongqi Yang , John Kalkman
IPC分类号： G06F11/00
CPC分类号： G06F17/30067 , G06F3/0619 , G06F3/0643 , G06F3/0679 , G06F11/1435 , G06F11/1441 , G06F11/1471 , G06F11/1474 , G06F12/0246 , G06F2212/7201 , G06F2212/7207 , Y02D10/13 , Y10S707/99953 , Y10S707/99955
摘要： A transactional file system developed to function with flash memory is described. The file system provides for efficient storage of file system meta-information, performs robust transaction logging, and performs other related features. In one described implementation, metadata is stored in-line with data. In another embodiment, a transaction log is maintained by storing transaction information associated with requests to perform file transactions. The transaction information is stored at arbitrary physical sector addresses on the flash medium. In still another embodiment, a transaction log is stored in a physical sector of a flash medium. The transaction log contains transaction information associated with performing a file request. Metadata is written into a spare area of the physical sector indicating that the physical sector contains transaction information.

10. 发明申请

US20060069852A1 Free sector manager for data stored in flash memory devices 有权
公开(公告)号：US20060069852A1
公开(公告)日：2006-03-30
申请号：US11272913
申请日：2005-11-14
申请人： Jered Aasheim , Yongqi Yang
发明人： Jered Aasheim , Yongqi Yang
IPC分类号： G06F12/10
CPC分类号： G06F12/0246 , G06F2212/7201 , G06F2212/7202 , Y02D10/13
摘要： A flash driver tracks data stored in a flash memory device through the use of logical-to-physical sector mapping. The mapping is stored in a data structure and allows data to be written into the next free physical sector in the flash memory medium. Write operations complete quickly, because there is no need to perform an erase operation in order to write new data on to the flash memory medium. Data loss due to power interruption during a write operation is also minimized by the described implementations. The logical-to-physical sector mapping stored in data structure is backed-up on the flash memory medium. In the event there is a catastrophic power interruption, logical-to-physical sector mapping can easily be reestablished by scanning the backed-up mapping in the flash memory medium. The backed-up information can be stored in a spare portion of a NAND or NOR flash memory medium.

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