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    • 4. 发明授权
    • Redundant computing system and redundant computing method
    • 冗余计算系统和冗余计算方法
    • US08862934B2
    • 2014-10-14
    • US13510621
    • 2010-11-26
    • Yoshio KamedaMasayuki Mizuno
    • Yoshio KamedaMasayuki Mizuno
    • G06F11/00G06F11/22G06F11/07G06F11/16
    • G06F11/1658G06F11/0793G06F11/1629G06F11/1641G06F11/165G06F11/1687G06F11/2236
    • A redundant computing system is composed of two systems: a first arithmetic processing unit (A-system) and a second arithmetic processing unit (B-system) having the same functions. A diagnosis control unit performs diagnosis of one system while the other system is performing arithmetic processing operation. The diagnosis control unit controls the input to the first and second arithmetic processing units by way of an input control unit according to the diagnosis operation, and an output control unit controls the output from the first and second arithmetic processing units according to the diagnosis result. After termination of the diagnosis, a value is copied from a storage unit of the system which has not been diagnosed to a storage unit of the system which has been diagnosed, and the redundant computing system resumes the redundant operation.
    • 冗余计算系统由具有相同功能的第一算术处理单元(A系统)和第二算术处理单元(B系统)组成。 诊断控制单元执行一个系统的诊断,而另一个系统执行算术处理操作。 诊断控制单元根据诊断操作通过输入控制单元控制对第一和第二算术处理单元的输入,并且输出控制单元根据诊断结果控制来自第一和第二算术处理单元的输出。 在诊断结束后,从尚未被诊断的系统的存储单元复制到被诊断的系统的存储单元,并且冗余计算系统恢复冗余操作。
    • 7. 发明授权
    • Semiconductor testing device, semiconductor device, and testing method
    • 半导体测试装置,半导体器件和测试方法
    • US08441277B2
    • 2013-05-14
    • US12810877
    • 2008-12-16
    • Koichiro NoguchiYoshio KamedaKoichi NoseMasayuki MizunoToshinobu Ono
    • Koichiro NoguchiYoshio KamedaKoichi NoseMasayuki MizunoToshinobu Ono
    • G01R31/26
    • G01R31/31908
    • A semiconductor test apparatus, semiconductor device, and test method are provided that enable the realization of a high-speed delay test. Semiconductor test apparatuses (1a-1c) include: flip-flops (11) each provided with first input terminal SI, second input terminal D, mode terminal SE that accepts a mode signal indicating either a first mode or a second mode, clock terminal CK that accepts a clock signal, and output terminal Q, the flip-flops (11) selecting first input terminal SI when the mode signal indicates the first mode, selecting second input terminal D when the mode signal indicates the second mode, and holding information being received by the input terminal that was selected based on the mode signal in synchronization with the clock signal and supplying as output from output terminal Q; and hold unit 12 that holds a set value and that provides the set value to first input terminal SI.
    • 提供了能够实现高速延迟测试的半导体测试装置,半导体器件和测试方法。 半导体测试装置(1a-1c)包括:各自配置有第一输入端子SI的触发器(11),第二输入端子D,接受指示第一模式或第二模式的模式信号的模式端子SE,时钟端子CK 接收时钟信号和输出端子Q,当模式信号指示第一模式时,触发器(11)选择第一输入端子SI,当模式信号指示第二模式时选择第二输入端子D,并且保持信息为 由与输入端Q同步地基于模式信号选择的输入端接收,并从输出端Q输出; 并且保持单元12保持设定值,并将设定值提供给第一输入端子SI。
    • 10. 发明授权
    • Clock signal dividing circuit
    • 时钟信号分频电路
    • US07893742B2
    • 2011-02-22
    • US12514115
    • 2007-10-26
    • Atsufumi ShibayamaKoichi NoseMasayuki Mizuno
    • Atsufumi ShibayamaKoichi NoseMasayuki Mizuno
    • H03L7/00
    • G06F1/10H03K23/507H03L7/0814H03L7/16
    • A clock signal dividing circuit in which a dividing ratio is regulated by N/M (M and N are positive integers and satisfy M>N) includes: a variable delay circuit which gives a predetermined delay amount based on a control value to an input clock signal CKI to output an output clock signal CKO; and a variable delay control circuit which cumulatively adds values obtained by subtracting N from M every cycle of the input clock signal CKI, when the addition result is N or more, performs a calculation which subtracts N from the addition result to obtain a calculation result K, and calculates, to a maximum delay amount in the variable delay circuit corresponding to one cycle of the input clock signal CKI, a control value corresponding to a delay amount of K/N of the maximum delay amount to give the control value to the variable delay circuit.
    • 分频比由N / M(M和N是正整数,满足M> N)调节的时钟信号分频电路包括:可变延迟电路,其基于对输入时钟的控制值给出预定的延迟量 信号CKI输出输出时钟信号CKO; 以及可变延迟控制电路,当相加结果为N以上时,累积地将通过从输入时钟信号CKI的每个周期从M中减去N而获得的值执行从相加结果中减去N的计算,以获得计算结果K ,并且将对应于输入时钟信号CKI的一个周期的可变延迟电路中的最大延迟量计算为与最大延迟量的K / N的延迟量相对应的控制值,以将控制值赋予该变量 延时电路。