Hardware security device for magnetic memory cells
    2.
    发明授权
    Hardware security device for magnetic memory cells 有权
    磁性存储单元的硬件安全装置

    公开(公告)号:US07224634B2

    公开(公告)日:2007-05-29

    申请号:US10539795

    申请日:2003-12-15

    IPC分类号: G11C8/20

    摘要: The present invention provides a special structure of magnetic elements, e.g. MRAM elements, as a security device for IC's containing magnetic memory cells. In an example embodiment, the structure may comprise a combination of two or more associated magnetic elements with pre-set anti-parallel magnetization directions. By determining the polarisation directions of the magnetic elements, exposure to an external magnetic field can be detected. Inverse polarisation directions indicate a normal situation, aligned polarisation directions indicate that the MRAM-array has been exposed to an external field. In this way it can be detected whether a user has tried to erase or alter the data stored in the MRAM in an illegal way. The IC can regularly check the resistance of the security system during operation. Upon detection of a field exposure, the IC can erase all MRAM data, reset itself or, block its functioning.

    摘要翻译: 本发明提供了一种磁性元件的特殊结构。 MRAM元件作为包含磁存储单元的IC的安全装置。 在示例性实施例中,该结构可以包括具有预设的反并联磁化方向的两个或更多个相关联的磁性元件的组合。 通过确定磁性元件的极化方向,可以检测到暴露于外部磁场。 反偏振方向表示正常情况,对准偏振方向表示MRAM阵列暴露于外部场。 以这种方式,可以检测用户是否尝试以非法方式擦除或更改存储在MRAM中的数据。 IC可以在运行期间定期检查安全系统的电阻。 在检测到场曝光时,IC可以擦除所有MRAM数据,自身复位或阻止其功能。

    Record carrier
    3.
    发明授权
    Record carrier 失效
    记录载体

    公开(公告)号:US07889630B2

    公开(公告)日:2011-02-15

    申请号:US10533730

    申请日:2003-10-14

    IPC分类号: G11B7/24

    摘要: The invention relates to a record carrier (1) comprising an area for storing data, the record carrier adhering to a pre-defined, standardized condition with respect to a physical parameter. The record carrier comprises parameter information on the physical parameter, which parameter information is of a higher precision than the precision of the physical parameter mentioned in the pre-defined, standardized condition. Using this high precision parameter information, it is possible to derive the exact position of a visible image pixel data making up a label. This parameter information thus enables a recorder to write a visible label on the record carrier according to the invention.

    摘要翻译: 本发明涉及一种记录载体(1),其包括用于存储数据的区域,所述记录载体相对于物理参数粘附到预定义的标准化状态。 记录载体包括物理参数的参数信息,该参数信息的精度高于预定义的标准化条件中提到的物理参数的精度。 使用这种高精度参数信息,可以导出构成标签的可见图像像素数据的确切位置。 因此,该参数信息使得记录器能够在根据本发明的记录载体上写入可见标签。

    Universal memory device having a profile storage unit
    4.
    发明授权
    Universal memory device having a profile storage unit 有权
    具有简档存储单元的通用存储器件

    公开(公告)号:US07831790B2

    公开(公告)日:2010-11-09

    申请号:US10549367

    申请日:2004-03-17

    IPC分类号: G06F13/10

    摘要: A universal memory device is presented that provides adaptability to existing hardware and software environments. The memory can “mimic” existing memory technology combining the advantages of integrating all memory capacity into one single technology and still providing the implicit protections and access characteristics known from the different existing memory technologies. The memory device comprises a memory having low-latency, rewritable, non-volatile memory cells, a profile storage unit connected with the memory and comprising access information allocated to a set of request information elements (request profile), such that the access information indicates whether an access request to said memory, the access request having the request profile, is to be allowed or rejected, and an access control unit communicating with the profile storage unit and the memory, and adapted to allow or reject an incoming access request in dependence on the access information allocated to the request profile of the access request.

    摘要翻译: 提出了一种提供对现有硬件和软件环境的适应性的通用存储器件。 存储器可以“模拟”现有存储器技术,结合将所有存储器容量集成到一个单一技术中并且仍然提供从不同现有存储器技术已知的隐式保护和访问特性的优点。 存储装置包括具有低等待时间,可重写,非易失性存储器单元的存储器,与存储器连接的简档存储单元,并且包括分配给一组请求信息元素(请求简档)的访问信息,使得访问信息指示 是否允许或拒绝对所述存储器的访问请求,具有请求简档的访问请求,以及与简档存储单元和存储器通信的访问控制单元,并且适于依赖于允许或拒绝传入的访问请求 关于分配给访问请求的请求简档的访问信息。

    Method for writing a label on an optical disc
    6.
    发明授权
    Method for writing a label on an optical disc 失效
    在光盘上写标签的方法

    公开(公告)号:US07538787B2

    公开(公告)日:2009-05-26

    申请号:US10533729

    申请日:2003-10-14

    IPC分类号: B41J2/435

    摘要: Method for writing a label on a recordable record carrier (1), the record carrier adhering to a predefined, standardized condition with respect to a physical parameter. The method retrieves label information, parameter information on the physical parameter, which parameter information is of a higher precision than the precision of the physical parameter mentioned in the pre-defined, standardized condition (22), and writing the label information on the optical disc using the parameter information (26). The invention further relates to a device for performing the method. Retrieving parameter information on the physical parameter with a higher precision than the precision of the physical parameter mentioned in the pre-defined, standardized condition enables writing such a label without a significant distortion in the label.

    摘要翻译: 在可记录记录载体(1)上写入标签的方法,所述记录载体遵守关于物理参数的预定义的标准化条件。 该方法检索标签信息,关于物理参数的参数信息,哪个参数信息比在预定义的标准化条件(22)中提到的物理参数的精度更高的精度,并将标签信息写在光盘上 使用参数信息(26)。 本发明还涉及一种用于执行该方法的装置。 以比预定义的标准化条件中提到的物理参数的精度更高的精度检索物理参数的参数信息,可以在标签中写入这样的标签,而不会有明显的失真。

    Integrity control for data stored in a non-volatile memory
    7.
    发明授权
    Integrity control for data stored in a non-volatile memory 有权
    对存储在非易失性存储器中的数据的完整性控制

    公开(公告)号:US07529987B2

    公开(公告)日:2009-05-05

    申请号:US10559174

    申请日:2004-05-26

    IPC分类号: G11C29/00

    摘要: The present invention relates to a write controller for a memory with a plurality of non-volatile storage cells, a read controller for a memory with a plurality of nonvolatile storage cells, to a combined write/read controller, to a solid state device comprising a memory with a plurality of non-volatile storage cells, a programmer device for writing a binary code to a non-volatile memory, to a method for writing data comprising at least one input bit to a memory having non-volatile storage cells, and to a method for controlling the integrity of data comprising at least one input bit stored in non-volatile storage cells of a memory. The basic concept of the present invention is to extend information stored in a non-volatile memory by at least one checking bit. The checking bit is allocated to one code bit, or to each of a plurality of code bits.

    摘要翻译: 本发明涉及一种具有多个非易失性存储单元的存储器的写入控制器,具有多个非易失性存储单元的存储器的读取控制器,组合的写入/读取控制器,包括一个 具有多个非易失性存储单元的存储器,用于将二进制代码写入非易失性存储器的编程器装置,用于将包括至少一个输入位的数据写入到具有非易失性存储单元的存储器的方法,以及 一种用于控制数据完整性的方法,包括存储在存储器的非易失性存储单元中的至少一个输入位。 本发明的基本概念是通过至少一个检查位来扩展存储在非易失性存储器中的信息。 检查位分配给一个码位,或分配给多个码位中的每一个。

    Method of Increasing Boot-Up Speed
    9.
    发明申请
    Method of Increasing Boot-Up Speed 审中-公开
    增加启动速度的方法

    公开(公告)号:US20080256295A1

    公开(公告)日:2008-10-16

    申请号:US10597220

    申请日:2005-01-03

    IPC分类号: G06F9/445

    CPC分类号: G06F12/0866 G06F9/4406

    摘要: There is provided a method of increasing boot-up speed in a computer system (10). The system (10) includes computing devices (20) for processing data and a data store (60) coupled thereto for providing data to and receiving data from the devices (20). The store (60) is operable to write and/or read data in several regions (T1, T2, T3) of a data medium (200). Access between the regions is subject to associated jump delays (SK1/2, SK2/3; SK1/3, SL3/2). The store (60) includes a cache (320) for temporarily storing data read from and/or for writing data to the medium (200). On initial boot-up of the system (20), a log is made of a sequence in which the regions (T1, T2, T3) are accessed. Moreover, on subsequent boot-up of the system (10), the log is used to store data read from the medium (200) temporarily in the cache (310, 320) so as to provide for a more temporally efficient sequence of accessing the regions (T1, T2, T3) for speeding up said subsequent boot-up.

    摘要翻译: 提供了一种在计算机系统(10)中增加启动速度的方法。 系统(10)包括用于处理数据的计算设备(20)和与其耦合的数据存储(60),用于向设备(20)提供数据和从设备(20)接收数据。 存储器(60)可操作以在数据介质(200)的若干区域(T 1,T 2,T 3)中写入和/或读取数据。 区域之间的接触受到相关的跳跃延迟(SK 1/2,SK 2/3; SK 1/3,SL 3/2)。 存储器(60)包括用于临时存储从数据读取和/或写入到介质(200)的数据的高速缓存(320)。 在系统(20)的初始启动时,日志由访问区域(T 1,T 2,T 3)的序列组成。 此外,在系统(10)的后续启动时,日志用于将从媒体(200)中读取的数据临时存储在高速缓存(310,320)中,以便提供更时间有效的访问序列 区域(T 1,T 2,T 3),用于加速所述随后的启动。