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    • 64. 发明申请
    • MEMORY SYSTEM AND METHOD OF DATA WRITING AND READING IN MEMORY SYSTEMS
    • 存储系统中的数据写入和读取方法
    • US20110239091A1
    • 2011-09-29
    • US13011318
    • 2011-01-21
    • Haruki Toda
    • Haruki Toda
    • G06F11/10
    • H03M13/15H03M13/138H03M13/1515H03M13/152
    • A memory system according to the embodiment comprises a p-adic number converter unit operative to convert δ-digit, h-bit symbols to a k-digit, p-adic data word (p is a prime of 3 or more); an encoder unit operative to generate, from the p-adic data word, a code C composed of a residual field Zp of the prime p; a memory unit operative to store the code C as write data; an error correcting unit operative to apply an operation using a syndrome S generated from read data Y for error correcting the read data Y to regenerate the code C; a decoder unit operative to reverse-convert the code C to regenerate the p-adic data word; and a binary converter unit operative to convert the data word to a binary number to regenerate the binary data D.
    • 根据实施例的存储器系统包括一个对数转换器单元,用于将δ位,h位符号转换成一个k位,p-adic数据字(p是3或更多的素数); 编码器单元,用于从p-adic数据字生成由素数p的残余字段Zp组成的代码C; 存储单元,用于将代码C存储为写入数据; 误差校正单元,用于执行使用从读取数据Y生成的校正子S的操作,用于对读取数据Y进行纠错以再生代码C; 解码器单元,用于逆向转换代码C以再生p-adic数据字; 以及二进制转换器单元,用于将数据字转换为二进制数,以再生二进制数据D.
    • 66. 发明授权
    • Semiconductor memory device
    • 半导体存储器件
    • US07890843B2
    • 2011-02-15
    • US11674342
    • 2007-02-13
    • Haruki TodaToshiaki Edahiro
    • Haruki TodaToshiaki Edahiro
    • H03M13/00
    • G06F11/1068G11C16/0483
    • A memory device includes an error detection and correction system with an error correcting code over Galois field GF(2n), which has an operation circuit configured to execute addition/subtraction with modulo 2n−1, wherein the operation circuit includes first and second operation parts for performing addition/subtraction with modulo M and modulo N (where, M and N are integers, which are prime with each other as being obtained by factorizing 2n−1), the first and second operation parts being for performing addition/subtraction simultaneously in parallel with each other to output an operation result of the addition/subtraction with modulo 2n−1, and wherein the first and second operation parts each includes an adder circuit.
    • 存储装置包括具有Galois域GF(2n)上的纠错码的错误检测和校正系统,其具有被配置为以模2n-1执行加法/减法的操作电路,其中所述操作电路包括第一和第二操作部分 用于以模M和模N执行加法/减法(其中,M和N是整数,它们通过分解2n-1而获得),第一和第二操作部分用于同时执行加法/减法 彼此并联,以模2n-1输出加法/减法的运算结果,并且其中第一和第二操作部分各自包括加法器电路。