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    • 2. 发明授权
    • Circuit for protecting a load from an overvoltage
    • 用于保护负载免受过电压的电路
    • US06538866B1
    • 2003-03-25
    • US09526737
    • 2000-03-16
    • Keiji HanzawaMasahiro MatsumotoFumio MurabayashiTatsumi YamauchiHiromichi YamadaKohei SakuraiAtsushi Miyazaki
    • Keiji HanzawaMasahiro MatsumotoFumio MurabayashiTatsumi YamauchiHiromichi YamadaKohei SakuraiAtsushi Miyazaki
    • H02H900
    • H01L27/0251H02H9/04
    • A circuit for protecting a load from an overvoltage can be integrated together with the load on the same chip by an MOS transistor manufacture process. This overvoltage protecting circuit is composed of a surge protection circuit, an overvoltage detecting circuit and a switching circuit. The surge protection circuit including two MOS transistors operates so that a surge voltage applied to a power supply receiving terminal is clamped by virtue of the source-drain breakdown voltage of the two MOS transistors, thereby absorbing the surge energy. The overvoltage detecting circuit including two MOS transistors operates so that a DC voltage supplied from the surge protection circuit is monitored with the source-drain voltage of the two MOS transistors taken as a reference voltage, thereby detecting an overvoltage. An overvoltage detection output brings an MOS transistor of the switching circuit into a turned-off condition to protect the load.
    • 可以通过MOS晶体管制造工艺将用于保护负载的过电压的电路与负载集成在同一芯片上。 该过电压保护电路由浪涌保护电路,过电压检测电路和开关电路构成。 包括两个MOS晶体管的浪涌保护电路工作,借助于两个MOS晶体管的源极 - 漏极击穿电压来钳位施加到电源接收端的浪涌电压,从而吸收浪涌能量。 包括两个MOS晶体管的过电压检测电路进行工作,从而以两个MOS晶体管的源极 - 漏极电压作为参考电压来监视从浪涌保护电路提供的直流电压,从而检测过电压。 过电压检测输出使开关电路的MOS晶体管成为关断状态,以保护负载。
    • 8. 发明授权
    • Floating-point arithmetic processing apparatus
    • 浮点算术处理装置
    • US5931895A
    • 1999-08-03
    • US789430
    • 1997-01-29
    • Hiromichi YamadaFumio MurabayashiTatsumi YamauchiNoriyasu IdoYoshikazu KiyoshigeTakahiro NishiyamaEiki Kamada
    • Hiromichi YamadaFumio MurabayashiTatsumi YamauchiNoriyasu IdoYoshikazu KiyoshigeTakahiro NishiyamaEiki Kamada
    • G06F7/38G06F5/01G06F7/00G06F7/483G06F7/74G06F7/76G06F7/52
    • G06F5/012G06F7/483
    • A floating-point arithmetic processing apparatus has a circuit for generating a limit value for normalization shift by subtracting an exponent of the minimum value of a normalized number from a value of an exponent of an intermediate result, and a circuit for generating, as a normalization shift number, smaller one of a shift number necessary for making the mantissa of the intermediate result a normalized number and the limit value for normalization shift. The floating-point arithmetic processing apparatus further has a circuit having a circuit for detecting a condition for overflow before the rounding process and a circuit for generating a value in the case of overflow, so that a predetermined value is delivered as a final result only when the overflow condition is detected before the rounding process but in the other case, a result obtained by performing the normalization process and the rounding process is delivered. When no overflow takes place before the rounding process but overflow occurs after the rounding process, the result obtained by performing the normalization process and the rounding process is delivered as a final result.
    • 一种浮点运算处理装置,具有通过从中间结果的指数的值减去归一化数的最小值的指数来生成用于归一化偏移的极限值的电路,以及生成作为归一化的归一化的电路 移位数,使中间结果的尾数所需的移位数中的较小的一个是归一化数,以及归一化移位的极限值。 浮点运算处理装置还具有电路,该电路具有用于检测在舍入处理之前的溢出条件的电路和用于在溢出的情况下产生值的电路,从而仅当预定值仅在 在舍入处理之前检测到溢出条件,但是在另一种情况下,通过执行归一化处理和舍入处理获得的结果被传送。 在四舍五入处理之前没有发生溢出,而在舍入处理后发生溢出的情况下,通过执行归一化处理和舍入处理获得的结果作为最终结果被传递。
    • 9. 发明授权
    • Semiconductor integrated circuit apparatus
    • 半导体集成电路装置
    • US5841300A
    • 1998-11-24
    • US838193
    • 1997-04-16
    • Fumio MurabayashiTatsumi YamauchiTakashi HottaHiromichi Yamada
    • Fumio MurabayashiTatsumi YamauchiTakashi HottaHiromichi Yamada
    • H03K19/003H03K19/096
    • H03K19/00338
    • The present invention is intended to provide a conventional circuit apparatus which is highly tolerant to noises and operates at a higher speed than a completely complementary static CMOS circuit. To achieve this, circuit apparatus according to the present invention is provided with a plurality of CMOS static logic circuits which are series-connected and potential setting means which is connected to the output parts of these logic circuits and sets the outputs of the output parts to a low level in synchronization with a clock signal, thus propagating signals by operation of the NMOS circuit. In other words, a signal propagation delay occurs only when the N-type logic block conducts. Therefore circuit operation is speeded up and .alpha. particle noise and noises due to charge redistribution effect or leakage current can be prevented.
    • 本发明旨在提供一种传统的电路设备,其高度耐受噪声并且以比完全互补的静态CMOS电路更高的速度工作。 为了实现这一点,根据本发明的电路装置设置有多个串联的CMOS静态逻辑电路和电位设置装置,其连接到这些逻辑电路的输出部分并将输出部分的输出设置为 与时钟信号同步的低电平,从而通过NMOS电路的操作来传播信号。 换句话说,信号传播延迟仅在N型逻辑块导通时才发生。 因此,电路操作加快,可以防止由于电荷再分配效应或漏电流引起的α粒子噪声和噪声。
    • 10. 发明授权
    • Semiconductor integrated circuit apparatus
    • 半导体集成电路装置
    • US06590425B2
    • 2003-07-08
    • US09887065
    • 2001-06-25
    • Fumio MurabayashiTatsumi YamauchiTakashi HottaHiromichi Yamada
    • Fumio MurabayashiTatsumi YamauchiTakashi HottaHiromichi Yamada
    • H03K19096
    • H03K19/00338
    • There is disclosed a circuit apparatus which is highly tolerant to noises and operates at a higher speed than a conventional completely complementary static CMOS circuit. To achieve this, the circuit apparatus features a plurality of CMOS static logic circuits which are series-connected and potential setting circuitry which is connected to the output parts of these logic circuits and sets the outputs of the output parts to a low level in synchronization with a clock signal, thus propagating signals by operation of the NMOS circuit. In other words, a signal propagation delay occurs only when the N-type logic block conducts. Therefore, circuit operation is speeded up and &agr; particle noise and noises due to charge redistribution effect or leakage current can be prevented. There is also disclosed a parallel data processing apparatus which features such logic circuitry, the data processing apparatus having both a plurality of data processing units, each having a processor and a memory, and a plurality of hard disks.
    • 公开了一种电路装置,其高度耐受噪声并以比传统的完全互补的静态CMOS电路更高的速度工作。 为了实现这一点,电路装置具有串联连接的多个CMOS静态逻辑电路和连接到这些逻辑电路的输出部分的电位设置电路,并将输出部分的输出与 时钟信号,从而通过NMOS电路的操作传播信号。 换句话说,信号传播延迟仅在N型逻辑块导通时才发生。 因此,可以防止电路操作加剧,并且可以防止由于电荷再分配效应或漏电流引起的α粒子噪声和噪声。 还公开了一种具有这种逻辑电路的并行数据处理装置,数据处理装置具有多个数据处理单元,每个数据处理单元具有处理器和存储器,以及多个硬盘。