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    • 1. 发明授权
    • Semiconductor memory device
    • 半导体存储器件
    • US5260903A
    • 1993-11-09
    • US834374
    • 1992-02-12
    • Junichi SuyamaYoshihiro Murashima
    • Junichi SuyamaYoshihiro Murashima
    • G11C11/401G11C7/10G11C11/409G11C7/00
    • G11C7/1057G11C7/1051G11C7/106
    • A semiconductor memory device provided that first data is read out from a first memory cell within a first readout period; and second data is read out from the second memory cell within a second readout period; wherein an amplifier circuit receiving the first and second data, outputting first data signals having first electric potential level corresponding to the first and second data and outputting second data signal having second electric potential level; control circuit, in response to an external control signal, generating a first control signal in each of the first and second readout periods, the first control signal indicating first logic level during an enabling period of time within each of the first and second readout periods, otherwise the first control signal indicating second logic level; a first latch circuit latching the first data signals in the respective first and second readout periods and outputting a first latched data signal at the time of the first control signal indicating the first logic level; a second latch circuit latching the second data signals in the respective first and second readout periods and outputting a second latched data signal at the time of the first control signal indicating the first logic level; and a reset circuit placing the first and second latch circuit in an initial status after the first control signal is transferred from the first logic level to the second logic level in the first readout period and before the first control signal is transferred from the second logic level to the first logic level in the second readout period.
    • 2. 发明授权
    • Semiconductor integrated circuit
    • 半导体集成电路
    • US06501303B1
    • 2002-12-31
    • US09659573
    • 2000-09-11
    • Junichi Suyama
    • Junichi Suyama
    • H03K522
    • H03K17/302
    • A determining circuit comprises an input section having a P-channel type MOS transistor applied with a voltage VT set based on a reference voltage applied to a gate electrode and a voltage according to a voltage of a terminal applied to a source electrode, and an output section with a voltage level that changes according to an output from a drain electrode of a P-channel-type MOS transistor of a voltage level that changes according to a further voltage. With this configuration, the determining circuit for determining switching over to a prescribed mode can be implemented which is not influenced by fluctuations in process factors by using the voltage outputted from the output section.
    • 一个确定电路包括一个输入部分,该输入部分具有一个P沟道型MOS晶体管,该P沟道型MOS晶体管施加一个基于施加到栅电极的参考电压而设置的电压VT,以及一个根据施加到源极的端子电压的电压, 其电压电平根据根据另外的电压而变化的电压电平的P沟道型MOS晶体管的漏电极的输出而变化。 利用这种配置,可以实现用于确定切换到规定模式的确定电路,其不受通过使用从输出部分输出的电压的处理因素的波动的影响。
    • 3. 发明授权
    • Address transition detector circuit
    • 地址转换检测电路
    • US5777492A
    • 1998-07-07
    • US664546
    • 1996-06-17
    • Junichi SuyamaKazukiyo Fukudome
    • Junichi SuyamaKazukiyo Fukudome
    • G11C11/41G11C8/18H03K5/04H03K5/19
    • H03K5/04G11C8/18
    • In an ATD circuit, a pulse width amplifier circuit is provided between a first circuit means and a second circuit means. The first circuit means generates a first output signal having a first pulse width in response to a change in external address signal and generates, when the external address signal becomes a first sawtooth signal, a second sawtooth output signal having a peak value smaller than that of the first sawtooth signal. The second circuit means receives therein the signal generated by the pulse width amplifier circuit and waveform-shapes the output signal so as to provide an ATD signal therefrom. The pulse width amplifier circuit amplifies a pulse width of the signal generated by the first circuit means. Further, the pulse width amplifier circuit generates a third output signal having a second pulse width corresponding to the first pulse width when the first output signal is received thereto and generates a fourth output signal having a third pulse width when the second output signal is received thereto.
    • 在ATD电路中,在第一电路装置和第二电路装置之间提供脉宽放大器电路。 第一电路装置响应于外部地址信号的变化产生具有第一脉冲宽度的第一输出信号,并且当外部地址信号变为第一锯齿波信号时,产生第二锯齿波输出信号,峰值小于 第一个锯齿波信号。 第二电路装置在其中接收由脉冲宽度放大器电路产生的信号,并对输出信号进行波形整形,从而提供ATD信号。 脉宽放大器电路放大由第一电路装置产生的信号的脉冲宽度。 此外,当接收到第一输出信号时,脉宽放大器电路产生具有对应于第一脉冲宽度的第二脉冲宽度的第三输出信号,并且当接收到第二输出信号时产生具有第三脉冲宽度的第四输出信号 。
    • 5. 发明授权
    • MOS semiconductor memory device having sense control circuitry simplified
    • 具有简化的感测控制电路的MOS半导体存储器件
    • US5031153A
    • 1991-07-09
    • US449562
    • 1989-12-12
    • Junichi Suyama
    • Junichi Suyama
    • G11C11/401G11C7/14G11C11/407G11C11/409G11C11/4091G11C11/4099
    • G11C11/4091G11C11/4099G11C7/14
    • An MOS semiconductor memory device includes memory cell matrices. Each matrix is constituted with memory cells and noise cancellers. Each memory cell is connected, at an intersection between a pair of bit lines and a word line, between either one of the bit lines and the word line. The word line controls read and write operations of the memory cell. The noise canceller is connected, at an intersection between a pair of bit lines and a dummy word line, between either one of the bit lines and the dummy word line. The dummy word line enables the noise canceller. The memory cell matrices form groups of memory cells into which the cells are grouped in accordance wtih addresses. The dummy word line and the word line have substantially identical characteristics. The dummy word line possesses parasitic resistance and capacitance to delay by a first predetermined period of time a signal to enable the noise canceller. The memory device further includes sense amplifier circuits connected between the pair of bit lines of the memory cell matrices for amplifying a potential difference between the bit lines in response to an enable signal, and a sense control circuit connected to the dummy word lines and the sense amplifier circuits to be operative in a read or write operation of the memory cell for selectively enabling related sense amplifier circuits in response to a signal delayed by a dummy word line of selected ones of the memory cell matrices.
    • MOS半导体存储器件包括存储单元矩阵。 每个矩阵由存储器单元和噪声消除器构成。 每个存储器单元在位线和字线中的任一个之间的一对位线和字线之间的交叉点处连接。 字线控制存储单元的读写操作。 噪声消除器在位线和哑字线之间的一对位线和虚拟字线之间的交叉点处连接。 虚拟字线使噪声消除器。 存储单元矩阵形成存储单元组,单元根据地址分组到其中。 虚拟字线和字线具有基本相同的特性。 虚拟字线具有寄生电阻和电容,以延迟第一预定时间段以产生噪声消除器的信号。 存储装置还包括连接在存储单元矩阵的一对位线之间的读出放大器电路,用于响应于使能信号放大位线之间的电位差,以及连接到虚拟字线和感测的读出控制电路 放大器电路在存储器单元的读取或写入操作中工作,用于响应于被选择的存储单元矩阵的虚拟字线延迟的信号选择性地使能相关读出放大器电路。
    • 6. 发明授权
    • Dynamic random access memory with low power consumption
    • 具有低功耗的动态随机存取存储器
    • US06574150B2
    • 2003-06-03
    • US10175859
    • 2002-06-21
    • Junichi SuyamaWataru NagaiAkihiro HirotaShota Ohtsubo
    • Junichi SuyamaWataru NagaiAkihiro HirotaShota Ohtsubo
    • G11C700
    • G11C11/4074G11C5/147
    • A low power consumption type dynamic random access memory (DRAM) operable with reduced current consumption responsive to an external signal, without causing occurrence of malfunction during low current consumption. An input circuit for receiving signals, a memory array for holding data, and a peripheral circuit for controlling the memory array are driven by an internal voltage supplied by two groups of internal voltage receiving circuits, while an output circuit for outputting signals is driven by an external power supply. The two groups of internal voltage receiving circuits are deactivated in response to an externally provided power supply control signal, and the output circuit is controlled so as to be in a high impedance condition with voltage of the external power supply being applied thereto.
    • 低功耗型动态随机存取存储器(DRAM),可以响应于外部信号而以可减小的电流消耗进行操作,而不会在低电流消耗期间发生故障。 用于接收信号的输入电路,用于保持数据的存储器阵列和用于控制存储器阵列的外围电路由内部电压接收电路组提供的内部电压驱动,而用于输出信号的输出电路由 外部电源。 两组内部电压接收电路响应于外部提供的电源控制信号被去激活,并且输出电路被控制成在施加外部电源的电压的情况下处于高阻抗状态。
    • 9. 发明授权
    • DRAM power-source controller that reduces current consumption during standby
    • DRAM电源控制器,可在待机期间降低电流消耗
    • US06791894B2
    • 2004-09-14
    • US10252102
    • 2002-09-23
    • Wataru NagaiAkihiro HirotaJunichi Suyama
    • Wataru NagaiAkihiro HirotaJunichi Suyama
    • G11C700
    • G11C7/22G11C11/4074G11C2207/2227
    • A power-source controller for reducing current consumption while a DRAM is in standby, includes a mode detection circuit inverting a disable signal having an L-level under the enable state and having an H-level under the disable state; an internal-power-source driver circuit having first and second transistors; and an internal-power-source reference circuit setting first and second driver control signals respectively to L-level and H-level when an L-level disable signal is input to turn on the first transistor and turn off the second transistor, supplying an external-power-source voltage as an internal-power-source voltage, setting the first driver control signal to H-level when an H-level disable signal is input, controlling the level of the second driver control signal to turn off the second transistor and control the first transistor, and supplying an internal power-source voltage lower than the external-power-source voltage.
    • 一种用于在DRAM处于待机状态时降低电流消耗的电源控制器,包括模式检测电路,使具有在使能状态下具有L电平并且处于禁用状态的H电平的禁用信号反相; 具有第一和第二晶体管的内部电源驱动器电路; 以及内部电源参考电路,当输入L电平禁止信号时,将第一和第二驱动器控制信号分别设置为L电平和H电平,以接通第一晶体管并关断第二晶体管,提供外部 电源电压作为内部电源电压,当输入H电平禁止信号时将第一驱动器控制信号设置为H电平,控制第二驱动器控制信号的电平以关闭第二晶体管,以及 控制第一晶体管,并提供低于外部电源电压的内部电源电压。
    • 10. 发明授权
    • Pulse width amplifier circuit
    • 脉宽放大电路
    • US5973982A
    • 1999-10-26
    • US110202
    • 1998-07-06
    • Junichi SuyamaKazukiyo Fukudome
    • Junichi SuyamaKazukiyo Fukudome
    • G11C8/18H03K5/04G11C13/00
    • G11C8/18H03K5/04
    • Disclosed herein is an ATD circuit of the present invention. In order to generate a stable ATD pulse, a pulse width amplifier circuit is provided between a first circuit means and a second circuit means. The first circuit means outputs a first output signal having a first pulse width in response to a change in external address signal and outputs, when the external address signal is brought to a first sawtooth signal, a second sawtooth output signal having a peak value smaller than that of the first sawtooth signal. The second circuit means inputs therein the signal outputted from the pulse width amplifier circuit and waveform-shapes the output signal so as to output an ATD signal therefrom. The pulse width amplifier circuit amplifies a pulse width of the signal outputted from the first circuit means. Further, the pulse width amplifier circuit outputs a third output signal having a second pulse width corresponding to the first pulse width when the first output signal is input thereto and outputs a fourth output signal having a third pulse width when the second output signal is input thereto.
    • 本文公开了本发明的ATD电路。 为了产生稳定的ATD脉冲,在第一电路装置和第二电路装置之间提供脉宽放大器电路。 第一电路装置响应于外部地址信号的改变输出具有第一脉冲宽度的第一输出信号,并且当外部地址信号被带到第一锯齿波信号时输出第二锯齿波输出信号,其峰值小于 第一个锯齿波信号。 第二电路是输入从脉宽放大器电路输出的信号,并对输出信号进行波形整形,从而输出ATD信号。 脉冲宽度放大器电路放大从第一电路装置输出的信号的脉冲宽度。 此外,当输入第一输出信号时,脉宽放大器电路输出具有与第一脉冲宽度对应的第二脉冲宽度的第三输出信号,并且当输入第二输出信号时,输出具有第三脉冲宽度的第四输出信号 。