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    • 2. 发明申请
    • Minimized Half-Select Current in Multi-State Memories
    • 在多状态记忆中最小化半选择电流
    • US20130262759A1
    • 2013-10-03
    • US13438438
    • 2012-04-03
    • Erik OrdentlichRon M. RothGadiel Seroussi
    • Erik OrdentlichRon M. RothGadiel Seroussi
    • G06F12/08
    • G11C16/10G06F11/1008G11C7/1006G11C11/56G11C11/5678G11C11/5685G11C13/0004G11C13/0007
    • A multi-state memory system with encoding that minimizes half-select currents. The system includes an array of row and column conductors with a plurality of storage cells each capable of being placed into any of three or more physical states. An encoder is connected to receive data bits for storage and to apply activation signals to the row and column conductors to write information to the storage cells. The encoder is programmed to encode the data bits into entries in an array having one row corresponding with each row conductor and one column corresponding with each column conductor; select entries in the array according to half-select currents of the storage cells; apply a predetermined one-dimensional mapping that increases the value of at most one entry in the array to obtain a mapped array; and write entries of the mapped array into the storage cells.
    • 具有最小化半选择电流的编码的多状态存储器系统。 该系统包括具有多个存储单元的行和列导体的阵列,每个存储单元能够被置于三个或更多个物理状态中的任何一个中。 连接编码器以接收用于存储的数据位,并将激活信号施加到行和列导体以将信息写入存储单元。 编码器被编程为将数据位编码为具有与每行导体相对应的一行的阵列中的条目和与每个列导体相对应的一列; 根据存储单元的半选择电流选择阵列中的条目; 应用增加阵列中至多一个条目的值以获得映射数组的预定一维映射; 并将映射的阵列的条目写入存储单元。
    • 9. 发明授权
    • Apparatus and method for efficient arithmetic in finite fields through alternative representation
    • 通过替代表示在有限域中有效运算的装置和方法
    • US06466959B2
    • 2002-10-15
    • US09751438
    • 2001-02-26
    • Ian F. BlakeRon M. RothGadiel Seroussi
    • Ian F. BlakeRon M. RothGadiel Seroussi
    • G06F700
    • G06F7/724G06F7/726
    • A method and apparatus are shown for performing efficient arithmetic on binary vectors in a finite field. Typically, there is an efficient algorithm within an execution context, such as hardware or software, for performing a selected arithmetic operation on an operand. When the operand is in a first representative format and the efficient algorithm operates in an alternative representation format, then the operand is permutated from the first representative format to the alternative representation format. The efficient algorithm is then performed on the operand in the alternative representation format in order to obtain a result in the alternative representation format. The result is then permutated from the alternative representation format to the first representation format. Thus, efficient arithmetic is obtained by using the most efficient algorithm available in either the first representation format or the alternative representation format and permuting operands and results to the representation format corresponding to the most efficient algorithm available.
    • 示出了在有限域中对二进制向量执行有效运算的方法和装置。 通常,在执行上下文(例如硬件或软件)中存在用于对操作数执行所选算术运算的有效算法。 当操作数处于第一代表格式并且有效算法以替代表示格式操作时,则操作数从第一代表格式转换为替代表示格式。 然后以替代表示格式对操作数执行有效的算法,以获得替代表示格式的结果。 然后将结果从替代表示格式转换为第一表示格式。 因此,通过使用以第一表示格式或替代表示格式可用的最有效的算法并且将操作数和结果替换为与可用的最有效算法相对应的表示格式而获得有效的算术。