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    • 5. 发明授权
    • System for booting from a non-XIP memory utilizing a boot engine that does not have ECC capabilities during booting
    • 使用在引导期间不具有ECC能力的引导引擎从非XIP内存引导的系统
    • US08065563B2
    • 2011-11-22
    • US12470487
    • 2009-05-22
    • Ming-Shiang Lai
    • Ming-Shiang Lai
    • G06F11/00
    • G06F9/4401G06F9/44573G06F11/1417G06F11/1666
    • A booting system includes: a non-XIP memory, for storing a plurality of booting images, wherein the booting images comprise a source image and a plurality of duplicates of the source image; an XIP memory, coupled to the non-XIP memory; and a code shadowing module, coupled to the non-XIP memory and the XIP memory, for shadowing a specific booting image to the XIP memory if no errors are detected when carrying out error detection (EDC) checking on the specific booting image; wherein if at least a specific part of a booting image does not pass EDC checking, the code shadowing module shadows error-free parts of the booting image to the XIP memory, carries out EDC checking on at least a duplicate of the specific part, and then shadows an error-free part corresponding to the specific part to the XIP memory.
    • 引导系统包括:非XIP存储器,用于存储多个启动图像,其中引导图像包括源图像和源图像的多个重复; 耦合到非XIP存储器的XIP存储器; 以及耦合到非XIP存储器和XIP存储器的代码阴影模块,用于在对特定引导映像进行错误检测(EDC)检查时没有检测到错误时将特定引导映像遮蔽到XIP存储器; 其中如果引导图像的至少特定部分没有通过EDC检查,则代码阴影模块将引导图像的无错误部分影响到XIP存储器,对至少特定部分的副本执行EDC检查,以及 然后将对应于XIP存储器的特定部分的无错误部分影像。
    • 9. 发明申请
    • USING SHARED MEMORY WITH AN EXECUTE-IN-PLACE PROCESSOR AND A CO-PROCESSOR
    • 使用共享存储器与执行处理器和协处理器
    • US20080126749A1
    • 2008-05-29
    • US11557439
    • 2006-11-07
    • Joe Y. TomVenkat Natarajan
    • Joe Y. TomVenkat Natarajan
    • G06F12/00G06F12/02G06F9/44
    • G06F12/1416G06F9/44573G06F12/1408G06F21/85
    • The claimed subject matter provides systems and/or methods that facilitate sharing of a memory, having a single channel of access, between two or more processors. A host processor can be operatively connected to a co-processor and the memory in series. The host processor can execute in place to enable it to execute code directly from the memory, and can arbitrate access to the memory bus and thus the memory, so that the host processor can perform all memory fetches to the memory without interruption by the co-processor. The co-processor can be implemented as a finite state machine, and only accesses the memory during read or write cycles issued by the host processor. Various types of co-processors can be employed to perform various functions, such as cryptography and digital signal processing, for example. The memory can be volatile or non-volatile memory.
    • 所要求保护的主题提供了便于在两个或多个处理器之间共享具有单一访问通道的存储器的系统和/或方法。 主机处理器可以可操作地连接到协处理器和串行存储器。 主处理器可以执行到位以使其能够直接从存储器执行代码,并且可以仲裁对存储器总线的访问,从而对存储器进行仲裁,使得主机处理器可以执行所有存储器提取到存储器, 处理器。 协处理器可以被实现为有限状态机,并且仅在由主处理器发出的读或写周期期间访问存储器。 可以使用各种类型的协处理器来执行各种功能,例如密码学和数字信号处理。 内存可以是易失性或非易失性存储器。