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热词
    • 5. 发明授权
    • Method and apparatus for performing memory protection operations in a
single instruction multiple data system
    • 在单个指令多数据系统中执行存储器保护操作的方法和装置
    • US5457789A
    • 1995-10-10
    • US20870
    • 1993-02-19
    • Walter C. Dietrich, Jr.Mark A. LavinHungwen LiMing-Cheng Sheng
    • Walter C. Dietrich, Jr.Mark A. LavinHungwen LiMing-Cheng Sheng
    • G06F9/38G06F9/50G06F11/10G06F12/14G06F15/16G06F15/80
    • G06F9/5016G06F11/10G06F12/1483
    • In a multiprocessor system, memory accesses by the individual processing elements are checked by a common controller. The controller includes a table of values defining valid memory locations for a task. The controller verifies the address value used by each instruction to ensure that, it is within a valid memory area for the particular task. Additional circuitry for the controller and processing elements allows finer control, of memory accessibility. The multiprocessor system may be coupled to a host computer through a buffer. Data is serially written into the buffer by the host and is read out of the buffer in parallel by the multiprocessor system. The buffer used in this system includes apparatus which calculates an error correction code from a serial data stream and passes this code, along with the data, to the multiprocessor system. The multiprocessor system includes apparatus which processes the data in parallel to handle errors occurring during transfers as indicated by the code.
    • 在多处理器系统中,各个处理元件的存储器访问由公共控制器检查。 控制器包括定义任务的有效内存位置的值的表格。 控制器验证每个指令使用的地址值,以确保它在特定任务的有效内存区域内。 用于控制器和处理元件的附加电路允许更好的控制存储器可访问性。 多处理器系统可以通过缓冲器耦合到主计算机。 数据由主机串行写入缓冲区,并由多处理器系统并行读出缓冲区。 该系统中使用的缓冲器包括从串行数据流计算纠错码并将该代码连同该数据传送到多处理器系统的装置。 多处理器系统包括并行处理数据以处理由代码所示的传输期间发生的错误的装置。