Method for in-service RAM testing
    12.
    发明授权
    Method for in-service RAM testing 失效
    在线RAM测试方法

    公开(公告)号:US06671645B2

    公开(公告)日:2003-12-30

    申请号:US09968277

    申请日:2001-09-28

    CPC classification number: G06F12/1009 G06F12/1425

    Abstract: A method for in-service RAM testing in computer systems and networks having a virtual memory. The method involves identifying a number n of physical memory units pi, i=1 . . . n, in the RAM and a number n−1 of virtual memory units vj, j=1 . . . n−1, in the virtual memory, performing a one-to-one mapping to map the physical memory units pi to virtual memory units vj such that a physical memory unit px is left unmapped, and then testing data in the unmapped physical memory unit px by destructive or non-destructive tests. After the test data from another physical memory unit py is copied to physical memory unit px and a one-to-one re-mapping of physical memory units pi to virtual memory units vj is performed such that physical memory unit py is left unmapped. The data in physical memory unit py is then tested and the steps of copying, one-to-one re-mapping and testing can be repeated until all physical memory units pi are tested. The testing can be performed with the aid of an MMU and it can involve more than one physical memory page at a time.

    Abstract translation: 一种在具有虚拟存储器的计算机系统和网络中进行在线RAM测试的方法。 该方法涉及识别物理存储器单元pi,i = 1的数量n。 。 。 n,并且虚拟存储器单元vj,j = 1的n-1个数。 。 。 n-1,在虚拟存储器中,执行一对一映射以将物理存储器单元pi映射到虚拟存储器单元vj,使得物理存储器单元px被未映射,然后在未映射的物理存储器单元中测试数据 px通过破坏性或非破坏性测试。 在来自另一物理存储器单元py的测试数据被复制到物理存储器单元px之后,并且执行物理存储器单元pi到虚拟存储器单元vj的一对一重新映射,使得物理存储器单元py被未映射。 然后测试物理存储器单元py中的数据,并且可以重复复制,一对一重映射和测试的步骤,直到所有物理存储器单元pi被测试。 可以借助MMU执行测试,并且可以一次涉及多个物理内存页面。

    Enhanced monitoring device for surgical gloves and other barriers
    16.
    发明授权
    Enhanced monitoring device for surgical gloves and other barriers 失效
    增强的手术手套监护装置及其他障碍

    公开(公告)号:US5389097A

    公开(公告)日:1995-02-14

    申请号:US277984

    申请日:1994-06-22

    CPC classification number: G01M3/40 A61B42/30 G01M3/187

    Abstract: A monitoring device for detecting adulteration of an article used in critical use applications such as a surgical glove where the gloves are worn by the surgeon and are exposed to the body fluids of a patient. The device includes the detection of a particular value of electrical condition, preferably resistance or impedance, as well as the first and second derivatives of electrical condition. These values are monitored in a substantially continuous manner and are smoothed and filtered to determine when a hole or thin spot in the glove occurs. In addition, the device includes an autoranging function which maintains the measured voltage in a prescribed range, thus allowing the device to operate at a higher level of accuracy for a greater period of time than a device without the feature. Also, the device warns the health care professional when the electrical properties of the gloves have degraded to a point where the device may no longer reliably detect holes in the gloves.

    Abstract translation: 一种监测装置,用于检测用于临界使用应用中的制品的掺假,所述关键用途应用例如手术手套,其中手套由外科医生佩戴并暴露于患者的体液。 该装置包括检测电气条件的特定值,优选电阻或阻抗,以及电气条件的第一和第二导数。 以基本连续的方式监测这些值,并对其进行平滑和过滤,以确定手套中的孔或薄点何时发生。 此外,该装置还包括一个自动量程功能,它将测量的电压维持在规定的范围内,从而允许器件在比没有特征的器件更长的时间内以更高的精度工作。 此外,当手套的电气性能降低到设备不再可靠地检测手套中的孔的时候,该装置警告保健专业人员。

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