中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

22 records (took 0.027 seconds)

    Deriving Entropy From Multiple Sources Having Different Trust Levels
    1.
    发明申请
    Deriving Entropy From Multiple Sources Having Different Trust Levels 有权
    从具有不同信任级别的多个来源导出熵

    公开(公告)号：US20160124716A1

    公开(公告)日：2016-05-05

    申请号：US14528683

    申请日：2014-10-30

    Applicant: Seagate Technology LLC

    Inventor： Sumanth Jannyavula Venkata ,  Manuel A. Offenberg ,  Williaim Erik Anderson

    IPC: G06F7/58

    CPC classification number: G06F7/588 ,  G06F7/58

    Abstract: Apparatus and method for generating random numbers. In accordance with some embodiments, a first multi-bit string of entropy values is derived from a first entropy source having a first trust level and a different, second multi-bit string of entropy values is derived from a second entropy source having a different, second trust level. The first and second multi-bit strings of entropy values are combined in relation to the associated first and second trust levels to generate a multi-bit random number. The multi-bit random number is used as an input to a cryptographic function.

    Abstract translation: 用于产生随机数的装置和方法。 根据一些实施例，从具有第一信任级别的第一熵源导出熵值的第一多比特串，并且从具有不同的第二熵源的第二熵源导出熵值的不同的第二多比特串， 第二信任级别。 熵值的第一和第二多位串相关于相关联的第一和第二信任级组合以产生多位随机数。 多位随机数被用作加密函数的输入。

    LIMITING ACCESS OPERATIONS IN A DATA STORAGE DEVICE
    3.
    发明申请
    LIMITING ACCESS OPERATIONS IN A DATA STORAGE DEVICE 审中-公开

    公开(公告)号：US20180018269A1

    公开(公告)日：2018-01-18

    申请号：US15209584

    申请日：2016-07-13

    Applicant: Seagate Technology LLC

    Inventor： Sumanth Jannyavula Venkata ,  Mark A. Gaertner ,  Jonathan G. Backman

    IPC: G06F12/0888 ,  G06F12/0868

    Abstract: A hybrid data storage device disclosed herein includes a main data store, one or more data storage caches, and a data storage cache management sub-system. The hybrid data storage device is configured to limit write operations on the one or more data storage caches to less than an endurance value for the data storage cache. In one implementation, the data storage cache management sub-system limits or denies requests for promotion of data from the main data store to the one or more data storage caches. In another implementation, the data storage cache management sub-system limits garbage collection operations on the data storage cache.

    Hybrid memory with associative cache
    4.
    发明授权
    Hybrid memory with associative cache 有权

    公开(公告)号：US09785564B2

    公开(公告)日：2017-10-10

    申请号：US13971778

    申请日：2013-08-20

    Applicant: Seagate Technology LLC

    Inventor： Sumanth Jannyavula Venkata

    IPC: G06F12/00 ,  G06F13/00 ,  G06F13/28 ,  G06F12/0873

    CPC classification number: G06F12/0873

    Abstract: A hybrid memory system includes a primary memory comprising a host memory space arranged as memory sectors corresponding to host logical block addresses (host LBAs). A secondary memory is implemented as a cache for the primary host memory. A hybrid controller is configured directly map the clusters of host LBAs to clusters of secondary memory. The secondary memory clusters correspond to a memory space of the cache. Mapping of the host LBA secondary memory clusters is fully associative such that any host LBA cluster can be mapped to any secondary memory cluster.

    Deriving entropy from multiple sources having different trust levels
    9.
    发明授权
    Deriving entropy from multiple sources having different trust levels 有权
    从具有不同信任级别的多个来源导出熵

    公开(公告)号：US09569176B2

    公开(公告)日：2017-02-14

    申请号：US14528683

    申请日：2014-10-30

    Applicant: Seagate Technology LLC

    Inventor： Sumanth Jannyavula Venkata ,  Manuel A. Offenberg ,  William Erik Anderson

    IPC: G06F7/58

    CPC classification number: G06F7/588 ,  G06F7/58

    Abstract: Apparatus and method for generating random numbers. In accordance with some embodiments, a first multi-bit string of entropy values is derived from a first entropy source having a first trust level and a different, second multi-bit string of entropy values is derived from a second entropy source having a different, second trust level. The first and second multi-bit strings of entropy values are combined in relation to the associated first and second trust levels to generate a multi-bit random number. The multi-bit random number is used as an input to a cryptographic function.

    Abstract translation: 用于产生随机数的装置和方法。 根据一些实施例，从具有第一信任级别的第一熵源导出熵值的第一多比特串，并且从具有不同的第二熵源的第二熵源导出熵值的不同的第二多比特串， 第二信任级别。 熵值的第一和第二多位串相关于相关联的第一和第二信任级组合以产生多位随机数。 多位随机数被用作加密函数的输入。

    Retention based defecting in a hybrid memory system
    10.
    发明授权
    Retention based defecting in a hybrid memory system 有权
    在混合存储器系统中基于保留的缺陷

    公开(公告)号：US09069474B2

    公开(公告)日：2015-06-30

    申请号：US13971781

    申请日：2013-08-20

    Applicant: Seagate Technology LLC

    Inventor： Sumanth Jannyavula Venkata ,  Young-Pil Kim

    IPC: G06F11/00 ,  G06F3/06 ,  G06F12/02 ,  G06F11/07 ,  G06F1/32

    CPC classification number: G06F12/0246 ,  G06F1/3228 ,  G06F11/073 ,  G06F12/0866 ,  G06F2212/217 ,  G06F2212/7205

    Abstract: A first page in a memory unit is programmed with one or more pages of the secondary memory. A first time corresponding to the start of the programming of the first page is recorded. A second time corresponding to the completion of the programming of the one or more pages is recorded. A time difference between the first time and the second time is determined. It is determined if the time difference is greater than a threshold. In response to the time difference being greater than the threshold, a retention based defecting process is for the memory unit is disabled.

    Abstract translation: 存储器单元中的第一页被编程为具有一个或多个辅助存储器的页面。 记录与第一页的编程开始对应的第一次。 记录对应于一个或多个页面的编程完成的第二次。 确定第一时间和第二时间之间的时间差。 确定时差是否大于阈值。 响应于时间差大于阈值，基于保持的缺陷处理是禁止存储器单元。

Patent Agency Ranking