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    • 2. 发明申请
    • METHOD AND DEVICE FOR GENERATING PSEUDORANDOM NUMBER, AND METHOD AND DEVICE FOR ENCRYPTION USING PSEUDORANDOM NUMBER
    • 用于生成PSEUDORANDOR编号的方法和装置,以及使用PSEUDORANDOR编号加密的方法和装置
    • US20100284533A1
    • 2010-11-11
    • US12670299
    • 2008-07-16
    • Osamu KamedaMasakazu Sato
    • Osamu KamedaMasakazu Sato
    • G06F7/58H04L9/28
    • H04L9/0662H04N21/2347H04N21/4405
    • Provided are a method and apparatus for generating a pseudo-random number which is unpredictable and which has a small memory work area, and also a method and apparatus for encrypting data, for each predetermined amount, based on the generated pseudo-random number. A seed is divided into a predetermined number of blocks, new blocks are created by calculating an exclusive-OR of the blocks being different from each other, and the new blocks are merged to generate a new pseudo-random number. The data is encrypted for each determined amount based on the generated pseudo-random number. At this time, a pseudo-random number to be used for the succeeding encryption is generated by using as a seed a predetermined amount of random number of the pseudo-random number used for the preceding encryption of the predetermined amount of data.
    • 提供了一种用于生成不可预测的并且具有小的存储器工作区域的伪随机数的方法和装置,以及用于基于所生成的伪随机数对每个预定量加密数据的方法和装置。 种子被分成预定数量的块,通过计算彼此不同的块的异或来创建新的块,并且新的块被合并以生成新的伪随机数。 基于生成的伪随机数,为每个确定的量对数据进行加密。 此时,通过使用预定量的用于预定数据量的先前加密的伪随机数的随机数作为种子来生成用于后续加密的伪随机数。
    • 8. 发明授权
    • Planetary gear type transmission
    • 行星齿轮传动
    • US4920828A
    • 1990-05-01
    • US307286
    • 1989-02-07
    • Osamu KamedaSatoshi FujikawaToshiharu Shinmoto
    • Osamu KamedaSatoshi FujikawaToshiharu Shinmoto
    • B60K17/346F16H57/00
    • F16H57/0482B60K17/3467F16H57/0006Y10T74/19623
    • A transmission is equipped with a planetary gear type transmission unit disposed between an input member and an output member within a casing. The transmission unit is comprised of a sun gear, a ring gear and a plurality of planet gears carried by a carrier coupled with the output member. The planet gears are in mesh with the sun gear and the ring gear. The input and output members are coupled with each other by bypassing the gears of the transmission unit in direct drive or via these gears in reduction ratio drive. The transmission is further provided with a first change-over member in mesh with the input member for selectively connecting the input member with the carrier in direct drive or with the sun gear in reduction ratio drive and a second change-over member secured to the first change-over member for engaging the ring gear with the casing in reduction ratio drive or disengaging the former from the latter in direct drive.
    • 变速器配备有行星齿轮式传动单元,其布置在壳体内的输入构件和输出构件之间。 传动单元由太阳齿轮,齿圈和由与输出构件联接的载体承载的多个行星齿轮构成。 行星齿轮与太阳齿轮和齿圈啮合。 输入和输出构件通过在直接驱动中旁路传动单元的齿轮或通过减速比驱动器中的这些齿轮相互耦合。 变速器还设置有与输入构件啮合的第一转换构件,用于选择性地将输入构件与载体直接驱动连接,或者与减速比驱动器中的太阳齿轮进行选择性连接,第二转换构件固定到第一 用于使齿圈与壳体以减速比啮合的转换构件在直接驱动下驱动或分离前者与后者。