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    • 2. 发明授权
    • Arithmetic device
    • 算术设备
    • US08909689B2
    • 2014-12-09
    • US13361074
    • 2012-01-30
    • Hideo ShimizuYuichi KomanoKoichi FujisakiShinichi Kawamura
    • Hideo ShimizuYuichi KomanoKoichi FujisakiShinichi Kawamura
    • G06F7/72
    • G06F7/728
    • According to one embodiment, a first shift amount calculation unit counts the number of continuous zeros from a less significant bit toward a more significant bit of an intermediate result of a computation of Montgomery multiplication result z and calculates a first shift amount. A second shift amount calculation unit counts the number of continuous zeros from a less significant bit toward a more significant bit of redundant-binary-represented integer x and calculates a second shift amount. An addition/subtraction unit calculates the intermediate result by adding/subtracting, with respect to the intermediate result which has been bit-shifted by the first shift amount, the integer p, and the integer y which has been bit-shifted by the second shift amount. An output unit outputs, as the Montgomery multiplication result z, the intermediate result when the sum of the first shift amounts is equal to the number of bits of the integer p.
    • 根据一个实施例,第一移位量计算单元从蒙哥马利乘积结果z的计算的中间结果的较低有效位向更高有效位对连续零的数进行计数,并计算第一移位量。 第二移位量计算单元将来自冗余二进制表示的整数x的较低有效位朝向更高有效位的连续零的数目计数,并计算第二移位量。 加法/减法单元相对于已被移位了第一移位量的中间结果,整数p和已被位移第二移位的整数y加/减来计算中间结果 量。 当第一移位量的和等于整数p的位数时,输出单元输出作为蒙哥马利乘数结果z的中间结果。
    • 6. 发明申请
    • Electrophotographic photoconductor, and image forming apparatus, process cartridge and image forming method using the same
    • 电子照相感光体和图像形成装置,处理盒和使用其的成像方法
    • US20070059618A1
    • 2007-03-15
    • US11521493
    • 2006-09-15
    • Eiji KurimotoKeisuke ShimoyamaMichio KimuraShinichi KawamuraTakeshi TakadaYasuyuki YamashitaNaohiro TodaHideo Nakamori
    • Eiji KurimotoKeisuke ShimoyamaMichio KimuraShinichi KawamuraTakeshi TakadaYasuyuki YamashitaNaohiro TodaHideo Nakamori
    • G03G5/147G03G5/047
    • G03G5/047G03G5/0651G03G5/0661
    • An object of the present invention is to provide an image forming apparatus containing an electrophotographic photoconductor, a charging unit, an exposing unit, a developing unit, a transfer unit and a cleaning unit, wherein the electrophotographic photoconductor contains a support and at least a photosensitive layer disposed on the support, wherein the photosensitive layer contains a charge generating material and a compound expressed by the following Structural Formula (1), and wherein, in the Structural Formula (1), “R1” and “R2” may be identical to each other or different, and represent any one of hydrogen atom, alkyl group which may be substituted, cycloalkyl group which may be substituted and aralkyl group which may be substituted. “R3”, “R4”, “R5”, “R6”, “R7”, “R8”, “R9”, “R10”, “R11”, “R12”, “R13” and “R14” may be identical to each other or different, and represent any one of hydrogen atom, halogen atom, cyano group, nitro group, amino group, hydroxyl group, alkyl group which may be substituted, cycloalkyl group which may be substituted and aralkyl group which may be substituted. “n” is a number of replication and represents an integer of 0 to 100.
    • 本发明的目的是提供一种包含电子照相感光体,充电单元,曝光单元,显影单元,转印单元和清洁单元的图像形成设备,其中电子照相感光体含有载体和至少一种感光 层,其中感光层含有电荷产生材料和由以下结构式(1)表示的化合物,并且其中在结构式(1)中,“R”1“ 和“R”2“可以彼此相同或不同,并且表示氢原子,可被取代的烷基,可被取代的环烷基和可被取代的芳烷基中的任一个。 “R”3“,”R 4“,”R 5“,”R 6“,”R“ “9”,“R 8”,“R 9”,“R 10”,“R” > 11“,”R“12”,“R 13”和“R 14”可以彼此相同或 不同,表示氢原子,卤素原子,氰基,硝基,氨基,羟基,可被取代的烷基,可被取代的环烷基和可被取代的芳烷基中的任何一个。 “n”是复制数,表示0〜100的整数。
    • 10. 发明授权
    • Encryption/decryption unit and storage medium
    • 加密/解密单元和存储介质
    • US07039184B2
    • 2006-05-02
    • US10790045
    • 2004-03-02
    • Fumihiko SanoShinichi KawamuraHideo Shimizu
    • Fumihiko SanoShinichi KawamuraHideo Shimizu
    • H04L9/00
    • H04L9/0625H04L9/002H04L2209/08H04L2209/12H04L2209/24
    • An encryption/decryption unit includes a first data encryption/decryption section for performing an encryption or decryption process, a first data substitution section for performing data substitution of an output from the first encryption/decryption section according to a predetermined permutation table, a second data encryption/decryption section for performing an encryption or decryption process for an output from the first data substitution section, a second data substitution section for performing data substitution of an output from the second data encryption/decryption section according to a predetermined permutation table, and a third data encryption/decryption section for performing an encryption or decryption process for an output from the second data substitution section.
    • 加密/解密单元包括用于执行加密或解密处理的第一数据加密/解密部分,用于根据预定置换表执行来自第一加密/解密部分的输出的数据替换的第一数据替换部分,第二数据 加密/解密部分,用于对来自第一数据替换部分的输出执行加密或解密处理;第二数据替换部分,用于根据预定的置换表执行来自第二数据加密/解密部分的输出的数据替换;以及 第三数据加密/解密部分,用于对来自第二数据替换部分的输出进行加密或解密处理。