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    • 5. 发明授权
    • Apparatus and method for detection and control of circulating currents
in a variable speed DC motor
    • 用于检测和控制变速直流电机中的循环电流的装置和方法
    • US5552685A
    • 1996-09-03
    • US219022
    • 1994-03-28
    • Glen C. YoungGuy Bonner, Jr.Eric D. Schneider
    • Glen C. YoungGuy Bonner, Jr.Eric D. Schneider
    • H02H7/08H02P6/00H02P5/40
    • H02P6/15H02P6/08H02P6/182H02H7/0838
    • A current regulation circuit for a motor. The motor includes a stationary assembly having windings adapted for energization in at least one preselected sequence and a rotatable assembly in magnetic coupling relation to the stationary assembly. A power supply link connects the windings to a power supply and includes power switching devices for selectively energizing the windings in the preselected sequence by selectively connecting the power supply link to the windings to produce an electromagnetic field for rotating the rotatable assembly. The power switching devices each have a conducting state and a nonconducting state. The current regulation circuit includes a timing circuit, a current sensing circuit and a control circuit. The timing circuit defines preset periods during which each of the power switching devices may be nonconducting. The current sensing circuit senses current in the power supply link. The control circuit controls the power switching devices so that each of the power switching devices is nonconducting when the sensed current exceeds a peak current reference level during the preset periods. In this manner, the current regulation circuit controls current which circulates during periods when only one power switching device is conducting.
    • 电动机的电流调节电路。 马达包括具有适于在至少一个预选序列中通电的绕组的固定组件和与静止组件的磁耦合关系的可旋转组件。 电源链路将绕组连接到电源,并且包括功率开关装置,用于通过选择性地将电源链路连接到绕组以产生用于旋转可旋转组件的电磁场来选择性地以预选序列激励绕组。 功率开关器件各自具有导通状态和非导通状态。 电流调节电路包括定时电路,电流检测电路和控制电路。 定时电路定义了每个功率开关器件可能是不导通的预设周期。 电流检测电路检测电源链路中的电流。 控制电路控制功率开关器件,使得当在预设时段期间感测到的电流超过峰值电流参考电平时,每个功率开关器件都是不导通的。 以这种方式,电流调节电路控制在只有一个电源开关装置导通的时段期间循环的电流。
    • 6. 发明授权
    • Filing system scanner and improved bar code
    • 归档系统扫描器和改进的条形码
    • US5455410A
    • 1995-10-03
    • US237266
    • 1994-05-03
    • Eric D. Schneider
    • Eric D. Schneider
    • G06K17/00G06F15/24
    • G06K17/00
    • A filing system is provided for locating a particular file contained in a file holder which contains a plurality of files. The apparatus includes a machine-readable code mounted on each of said files, a guide attached to each file holder, a scanner for reading the codes on the files in a file holder, and an indicator for indicating when the particular machine-readable code corresponding to the particular file is located. The apparatus uses an improved bar code in which character boundaries are eliminated and the number of ONE's and ZERO's in a code are variable, resulting in increased data density. The unique numeric values which result from the improved bar code sparsely populate the possible range of values, and therefore a mapping algorithm is provided to map the bar code values to a sequential numeric system for ease of use. The improved bar code system uses repeating basic patterns of bars separated by a MARK bar, and a basic pattern can be reconstructed if the scan view includes only one MARK bar surrounded by ONE and ZERO bars. The improved apparatus also utilizes an inventive perpendicular file tab which positions the bar code accurately for the scanner. Border bars are provided to allow the scanner to separate bar codes from each other and to aid in determining if a bar code is defective or damaged.
    • 提供了一种归档系统,用于定位包含在包含多个文件的文件夹中的特定文件。 该装置包括安装在每个所述文件上的机器可读代码,附接到每个文件夹的引导件,用于读取文件夹中的文件上的代码的扫描器以及用于指示何时特定的机器可读代码对应于 到特定文件位于。 该装置使用改进的条形码,其中消除了字符边界,并且代码中的“零”和“零”数量是可变的,导致数据密度增加。 由改进的条形码产生的唯一数值稀疏地填充值的可能范围,因此提供映射算法以将条形码值映射到顺序数字系统以便易于使用。 改进的条形码系统使用由MARK栏分隔的条纹的重复基本图案,并且如果扫描视图仅包括由ONE和ZERO条围绕的一个MARK条,则可以重建基本图案。 改进的装置还利用本发明的垂直文件标签,其将条形码准确地定位在扫描仪上。 提供边框以允许扫描仪将条形码彼此分离并帮助确定条形码是否有缺陷或损坏。
    • 7. 发明授权
    • Write cache flushing method for reducing data corruption
    • 写缓存刷新方法,减少数据损坏
    • US07055055B1
    • 2006-05-30
    • US09719339
    • 2000-04-24
    • Eric D. SchneiderMichael J. GustafsonDaniel J. Hagler
    • Eric D. SchneiderMichael J. GustafsonDaniel J. Hagler
    • G06F11/00
    • G06F11/1435
    • There is described a method of maintaining a record of changes to data on a recording medium and allowing reconstruction of the state of the medium at a prior time. Various alternative embodiments are provided to enhance and improve this process, including maintaining two copies in RAM of data that are compared to detect corruption prior to transferring to the recording medium, splitting logic protection and viewing, disguising the disk to protect against incompatible software, flushing a write cache by insuring a certain amount of time has passed, flushing a write cache by insuring a certain amount of free time has passed and inserting delays if required, inserting safe points after a drop in the rate of disk activity, inserting safe points periodically, flushing the entire OS cache after detecting the need to establish a safe point for one user, separating out user activity by watching directories and files, or the use of complex linked data structures to implement the engine where such data structures can be substantially reconstructed from sequentially organized tables in the event of corruption.
    • 描述了一种在记录介质上保持对数据的改变的记录的方法,并且允许在先前时间重建介质的状态。 提供了各种替代实施例以增强和改进该过程,包括在传送到记录介质之前将数据的RAM中的两个副本保存在检测到损坏中,分割逻辑保护和查看,伪装磁盘以防止不兼容的软件冲洗 通过确保一定时间的写入缓存,通过确​​保一定量的空闲时间已经过去并且在需要时插入延迟来刷新写入缓存,在磁盘活动速率下降之后插入安全点,定期插入安全点 在检测到需要为一个用户建立安全点,通过观看目录和文件分离出用户活动或使用复杂的链接数据结构来实现可以从 在发生腐败的情况下按顺序组织的表。
    • 8. 发明授权
    • Optimized disk storage defragmentation with swapping capabilities
    • 优化的磁盘存储碎片整理与交换功能
    • US07051055B1
    • 2006-05-23
    • US09856331
    • 2000-07-10
    • Eric D. Schneider
    • Eric D. Schneider
    • G06F17/30
    • G06F17/30135Y10S707/99953Y10S707/99957
    • There is disclosed apparatus and a method of de-fragmenting file allocations on a disk comprising: determining what pages should be swapped among the various allocations made by the operating system (OS), the OS's file system mapping updated to reflect the swapped pages and a history of the original state prior to any update recorded by the engine, the swaps performed by manipulation of the engine's data structures and/or actually exchanging data on disk where OS visible data is read and written but the original state of each altered page is not directly recorded in the historic log, but instead, a record is additionally logged of the locations of the swapped data so that an image of the OS visible data can be reconstructed prior to time of the de-fragmentation by knowing what data to effectively re-swap and what OS mapping data to effectively restore. The apparatus and method may include the step of incorporating desired close proximity information of various OS visible pages into the algorithm executed by the engine that determines what is actually swapped, in order to reasonable maintain physical close proximity of data allocated by the OS but physically re-mapped by the engine.
    • 公开了一种在盘上分离文件分配的装置和方法,包括:确定在由操作系统(OS)所做的各种分配之间应该交换哪些页面,更新的OS的文件系统映射以反映交换的页面和 在引擎记录的任何更新之前的原始状态的历史,通过操纵引擎的数据结构执行的交换和/或实际上在读取和写入OS可见数据但是每个改变的页面的原始状态的盘上交换数据不是 直接记录在历史日志中,而是另外记录交换数据的位置的记录,以便可以在分片之前通过知道什么数据有效地重新生成OS可见数据的图像, 交换和什么操作系统映射数据有效恢复。 该装置和方法可以包括将各种OS可见页面的期望的近距离信息合并到由引擎执行的算法中以确定实际交换的内容的步骤,以便合理地保持由OS分配的数据的物理接近度,但是实际上 由引擎映射。
    • 9. 发明授权
    • Apparatus and method of creating a firewall data protection
    • 创建防火墙数据保护的设备和方法
    • US06363487B1
    • 2002-03-26
    • US09698542
    • 2000-10-26
    • Eric D. Schneider
    • Eric D. Schneider
    • G06F1214
    • G06F11/1417G06F21/80
    • A system is disclosed for a protected data storage medium. The protected data storage medium includes a storage medium that includes a protected area. In addition, the protected data storage includes a controller that is capable of controlling access to the storage medium. The controller is also capable of receiving a standard write command to change data of the storage medium, of receiving a special write command to change data of the storage medium. In operation, the controller changes data in the protected area in response to receiving a special write command. However, the controller allows data in the protected area to remain unchanged in response to receiving a standard write command.
    • 公开了一种用于受保护的数据存储介质的系统。 受保护的数据存储介质包括包括受保护区域的存储介质。 此外,受保护的数据存储器包括能够控制对存储介质的访问的控制器。 控制器还能够接收用于改变存储介质的数据的标准写入命令,接收特殊写入命令以改变存储介质的数据。 在操作中,控制器响应于接收到特殊的写命令而改变保护区中的数据。 然而,控制器允许受保护区域中的数据响应于接收标准写命令而保持不变。
    • 10. 发明授权
    • Filing folder tab having readable information
    • US5513459A
    • 1996-05-07
    • US517078
    • 1995-08-21
    • Eric D. Schneider
    • Eric D. Schneider
    • G06K17/00G09F23/10
    • G06K17/00
    • A filing system is provided for locating a particular file contained in a file holder which contains a plurality of files. The apparatus includes a machine-readable code mounted on each of the files, a guide attached to each file holder, a scanner for reading the codes on the files in a file holder, and an indicator for indicating when the particular machine-readable code corresponding to the particular file is located. The apparatus uses an improved bar code in which character boundaries are eliminated and the number of ONE's and ZERO's in a code are variable, resulting in increased data density. The unique numeric values which result from the improved bar code sparsely populate the possible range of values, and therefore a mapping algorithm is provided to map the bar code values to a sequential numeric system for ease of use. The improved bar code system uses repeating basic patterns of bars separated by a MARK bar, and a basic pattern can be reconstructed if the scan view includes only one MARK bar surrounded by ONE and ZERO bars. The improved apparatus also utilizes an inventive perpendicular file tab which positions the bar code accurately for the scanner. Border bars are provided to allow the scanner to separate bar codes from each other and to aid in determining if a bar code is defective or damaged.