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51. 发明授权

US07036044B1 Identifying appropriate undo during a forward pass through a log 有权
标题翻译：在向前传递日志期间识别适当的撤消数据
公开(公告)号：US07036044B1
公开(公告)日：2006-04-25
申请号：US10295131
申请日：2002-11-15
申请人： Surendra Verma , Jonathan M. Cargille , Jacob P. Lacouture , Brian D. Andrew , Sameet H. Agarwal
发明人： Surendra Verma , Jonathan M. Cargille , Jacob P. Lacouture , Brian D. Andrew , Sameet H. Agarwal
IPC分类号： G06F11/00
CPC分类号： G06F11/1474 , G06F11/1471
摘要： The location of appropriate undo data necessary for reversing an effect of an operation performed at a computer system is identified during a forward pass through a log. A cycle count can be used to determine if appropriate undo data is stored in an object or is stored in auxiliary storage. If appropriate undo data is stored in an object and the undo data would be potentially lost by processing a redo log entry to modify the contents of the object, the appropriate undo data is copied to auxiliary storage. In some embodiments, a secondary computer system receives log entries from a primary computer system. The secondary computer system can identify undo data necessary to reverse an effect of an operation performed at the secondary computer system from received log entries. Identified undo data can be copied auxiliary storage at the secondary computer system.
摘要翻译：在向前传递日志期间识别用于反转在计算机系统执行的操作的效果所需的适当的撤销数据的位置。可以使用循环计数来确定适当的撤消数据是存储在对象中还是存储在辅助存储器中。如果适当的撤消数据存储在对象中，并且通过处理重做日志条目来修改对象的内容可能会丢失撤消数据，则将相应的撤消数据复制到辅助存储。在一些实施例中，辅助计算机系统从主计算机系统接收日志条目。辅助计算机系统可以识别从接收的日志条目反转在次计算机系统执行的操作的影响所需的撤销数据。识别的撤消数据可以复制到辅助计算机系统的辅助存储器。

52. 发明申请

US20050120059A1 Transactional file system 有权
公开(公告)号：US20050120059A1
公开(公告)日：2005-06-02
申请号：US11009228
申请日：2004-12-10
申请人： Surendra Verma , Thomas Miller , Robert Atkinson
发明人： Surendra Verma , Thomas Miller , Robert Atkinson
IPC分类号： G06F12/00 , G06F17/30
CPC分类号： G06F17/30227 , Y10S707/959 , Y10S707/99931 , Y10S707/99932 , Y10S707/99937 , Y10S707/99938 , Y10S707/99942 , Y10S707/99944 , Y10S707/99952 , Y10S707/99953
摘要： A transactional file system wherein multiple file system operations may be performed as part of a user-level transaction. An application specifies that the operations on a file, or the file system operations of a thread, should be handled as part of a transaction, and the application is given a file handle associated with a transaction context. For file system requests associated with a transaction context, a component within the file system manages the operations consistent with transactional behavior. The component, which may be a resource manager for distributed transactions, provides data isolation by providing multiple versions of a file by tracking copies of pages that have changed, such that transactional readers do not receive changes to a file made by transactional writers, until the transactional writer commits the transaction and the reader reopens the file. The component also handles namespace logging operations in a multiple-level log that facilitates logging and recovery. Page data is also logged separate from the main log, with a unique signature that enables the log to determine whether a page was fully flushed to disk prior to a system crash. Namespace isolation is provided until a transaction commits via isolation directories, whereby until committed, a transaction sees the effects of its own operations not the operations of other transactions. Transactions over a network are also facilitated via a redirector protocol.

53. 发明申请

US20050120036A1 Transactional file system 有权
标题翻译：事务文件系统
公开(公告)号：US20050120036A1
公开(公告)日：2005-06-02
申请号：US11009662
申请日：2004-12-10
申请人： Surendra Verma , Thomas Miller , Robert Atkinson
发明人： Surendra Verma , Thomas Miller , Robert Atkinson
IPC分类号： G06F12/00 , G06F17/30 , G06F7/00
CPC分类号： G06F17/30227 , Y10S707/959 , Y10S707/99931 , Y10S707/99932 , Y10S707/99937 , Y10S707/99938 , Y10S707/99942 , Y10S707/99944 , Y10S707/99952 , Y10S707/99953
摘要： A transactional file system wherein multiple file system operations may be performed as a transaction. An application specifies that file system-related operations should be handled in a transaction, and is given a file handle associated with a transaction context. For file system requests associated with a transaction context, a file system component manages operations consistent with transactional behavior. The component provides data isolation by providing multiple file versions, such that transactional readers do not receive changes until after the transaction commits and the reader reopens the file. The component handles namespace logging operations in a multiple-level log that facilitates logging and recovery. Page data is logged separate from the main log, with signatures establishing whether pages were fully flushed to disk. Namespace isolation via isolation directories, allows a transaction to see its operational effects but not effects of other uncommitted transactions. Transactions over a network are facilitated.
摘要翻译：一种事务文件系统，其中可以执行多个文件系统操作作为事务。一个应用程序指定文件系统相关的操作应该在事务中处理，并且被赋予与事务上下文关联的文件句柄。对于与事务上下文相关联的文件系统请求，文件系统组件管理与事务行为一致的操作。该组件通过提供多个文件版本来提供数据隔离，使得事务读取器在事务提交之后不会收到更改，并且读取器重新打开该文件。该组件处理多级日志中的命名空间日志记录操作，便于记录和恢复。页面数据与主日志分开记录，签名确定页面是否完全刷新到磁盘。通过隔离目录命名空间隔离，允许事务查看其操作效果，但不会影响其他未提交的事务。通过网络进行的交易是便利的。

54. 发明授权

US06321219B1 Dynamic symbolic links for computer file systems 有权
标题翻译：计算机文件系统的动态符号链接
公开(公告)号：US06321219B1
公开(公告)日：2001-11-20
申请号：US09134792
申请日：1998-08-14
申请人： Patrick J. Gainer , James R. Hamilton , Surendra Verma
发明人： Patrick J. Gainer , James R. Hamilton , Surendra Verma
IPC分类号： G06F1730
CPC分类号： G06F17/30067 , Y10S707/99933
摘要： A user creates a rule defining file objects to appear at an arbitrary insertion point in a hierarchical file structure. Every request for a file, directory, etc. at the insertion point invokes the rule and constructs a set of dynamic links to actual locations of all file objects that satisfy the rule. Any operations performed by the program on the objects take place transparently on the objects at their actual locations. Between requests, the actual links go away, and only the rule for constructing them remains. An indexer operates continually to maintain current information on all files in the structure.
摘要翻译：用户创建一个定义文件对象的规则，以便在分层文件结构中的任意插入点处出现。对插入点的文件，目录等的每个请求都调用规则，并构造一组动态链接到满足规则的所有文件对象的实际位置。程序对对象执行的任何操作都会透明地放在其实际位置的对象上。在请求之间，实际链接消失，只有构建它们的规则仍然存在。索引器持续运行以维护结构中所有文件的当前信息。

55. 发明授权

US4288916A Method of making mass terminable shielded flat flexible cable 失效
标题翻译：大容量屏蔽扁平柔性电缆的制造方法
公开(公告)号：US4288916A
公开(公告)日：1981-09-15
申请号：US106988
申请日：1979-12-26
申请人： Surendra Verma
发明人： Surendra Verma
IPC分类号： H01B7/08 , H01R12/70 , H05K1/02 , H01B13/20 , H01R43/04 , H05K3/00
CPC分类号： H05K1/0218 , H01B7/0838 , H01B7/0861 , H01R23/662 , Y10T29/49123 , Y10T29/49151 , Y10T29/49181
摘要： A shielded cable comprises a flat electrical insulator having a plurality of parallel spaced-apart conductors. A pluraity of openings extend through the insulator to expose at least one conductor. The shield, which is formed from an electrically conductive coating, not only covers the exterior of the insulator but also enters the openings and is electrically connected to the conductor. Gaps are created in the electrically conductive coating so as to provide areas for interconnection by an insulation displacement connector which "mass-terminates" all of the conductors. The exposed one conductor, which is in contact through the openings with the electrically conductive coating, maintains the electrical continuity of the shield notwithstanding the gap formed therein.
摘要翻译：屏蔽电缆包括具有多个平行隔开的导体的扁平电绝缘体。开口的开口延伸穿过绝缘体以暴露至少一个导体。由导电涂层形成的屏蔽不仅覆盖绝缘体的外部，而且还进入开口并电连接到导体。在导电涂层中产生间隙，以便通过绝缘位移连接器提供“大量终止”所有导体的互连区域。暴露的一个导体通过开口与导电涂层接触，保持了屏蔽层的电连续性，尽管其中形成了间隙。

56. 发明授权

US4209215A Mass terminable shielded flat flexible cable and method of making such cables 失效
标题翻译：大容量屏蔽扁平柔性电缆及其制造方法
公开(公告)号：US4209215A
公开(公告)日：1980-06-24
申请号：US963599
申请日：1978-11-24
申请人： Surendra Verma
发明人： Surendra Verma
IPC分类号： H01B7/08 , H01R12/70 , H05K1/02 , H01R3/04 , H01R13/38
CPC分类号： H05K1/0218 , H01B7/0838 , H01B7/0861 , H01R23/662
摘要： A shielded cable comprises a flat electrical insulator having a plurality of parallel spaced-apart conductors. A plurality of openings extend through the insulator to expose at least one conductor. The shield, which is formed from an electrically conductive coating, not only covers the exterior of the insulator but also enters the openings and is electrically connected to the conductor. Gaps are created in the electrically conductive coating so as to provide areas for interconnection by an insulation displacement connector which "mass-terminates" all of the connectors. The exposed one conductor, which is in contact through the openings with the electrically conductive coating, maintains the electrical continuity of the shield notwithstanding the gap formed therein.
摘要翻译：屏蔽电缆包括具有多个平行隔开的导体的扁平电绝缘体。多个开口延伸穿过绝缘体以暴露至少一个导体。由导电涂层形成的屏蔽不仅覆盖绝缘体的外部，而且还进入开口并电连接到导体。在导电涂层中产生间隙，以便通过绝缘位移连接器提供“大量终止”所有连接器的互连区域。暴露的一个导体通过开口与导电涂层接触，保持了屏蔽层的电连续性，尽管其中形成了间隙。

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