会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Semiconductor integrated circuit having function for switching
operational mode of internal circuit
    • 具有切换内部电路工作模式功能的半导体集成电路
    • US4771407A
    • 1988-09-13
    • US79061
    • 1987-07-29
    • Yoshihiro TakemaeShigeki NozakiMasao NakanoKimiaki SatoHatsuo MiyaharaNobumi KodamaMakoto YanagisawaYasuhiro TakadaSatoshi Momozono
    • Yoshihiro TakemaeShigeki NozakiMasao NakanoKimiaki SatoHatsuo MiyaharaNobumi KodamaMakoto YanagisawaYasuhiro TakadaSatoshi Momozono
    • H03K3/353G01R31/28G11C11/401G11C29/46G11C11/40
    • G11C29/46
    • In a semiconductor integrated circuit having first and second power supply lines for receiving a power supply voltage, an external input terminal for receiving an input signal, and a high voltage detection circuit for detecting at the external input terminal a high voltage higher than a predetermined voltage which is higher than the power supply voltage, the high voltage detection circuit comprises an input circuit connected to the external input terminal for generating circuit for generating a reference voltage; and a differential voltage amplifier connected to receive the detection voltage and the reference voltage for amplifying the difference between the detection voltage and the reference voltage, to thereby determine whether the high voltage is applied, the input circuit comprising; a level shift element connected to the external input terminal for providing the detection voltage; an impedance element connected between the level shift element and the second power supply line; and a leak current compensating element connected between the first power supply line and the level shift element for allowing a current to flow from the first power supply line through the leak current compensating element and the impedance element to the second power supply line when the high voltage is not applied to the external input terminal.
    • 在具有用于接收电源电压的第一和第二电源线,用于接收输入信号的外部输入端子和用于在外部输入端子处检测高于预定电压的高电压的高电压检测电路的半导体集成电路中, 高电压检测电路包括连接到外部输入端的输入电路,用于产生用于产生参考电压的电路; 连接的差分电压放大器,用于接收检测电压和参考电压,用于放大检测电压和参考电压之间的差值,从而确定是否施加高电压,输入电路包括: 连接到所述外部输入端子以提供所述检测电压的电平移动元件; 连接在电平移位元件和第二电源线之间的阻抗元件; 以及泄漏电流补偿元件,其连接在所述第一电源线和所述电平移动元件之间,用于当高电压时允许电流从所述第一电源线流过所述漏电流补偿元件和所述阻抗元件流到所述第二电源线 不适用于外部输入端子。
    • 4. 发明授权
    • Semiconductor dynamic memory device having improved refreshing
    • 具有改善的刷新的半导体动态存储装置
    • US4787067A
    • 1988-11-22
    • US883804
    • 1986-07-09
    • Yoshihiro TakemaeMasao NakanoKimiaki SatoNobumi Kodama
    • Yoshihiro TakemaeMasao NakanoKimiaki SatoNobumi Kodama
    • G11C11/403G11C11/406G11C11/4076G11C11/408G11C8/00G11C7/00
    • G11C11/406G11C11/4076
    • A semiconductor dynamic memory device having an improved refreshing time is disclosed wherein the memory device provides two buffer memories exclusively for the external and refresh addresses, each of the buffer memories comprising a preamplifier and a driver stage. When the falling edge of a RAS signal is detected, all the circuits are enabled in parallel, but the operation of the driver is suppressed. As soon as a CAS before RAS detector discriminates which of the falling edges of the CAS and RAS signals becomes low earlier, it sends an address driving signal to one of the drivers, and the external address or refresh address are sent immediately. Using this technique, the prior art sequential operation of discriminating the falling edges of RAS and CAS signal, sending the refresh signal, receiving it and switching the circuit from external address to refresh address is eliminated, and is replaced by a parallel operation. Thus the set up time of the dynamic memory is reduced to 1-2 n.sec. by the present invention.
    • 公开了一种具有改善的刷新时间的半导体动态存储器件,其中存储器件专门为外部和刷新地址提供两个缓冲存储器,每个缓冲存储器包括前置放大器和驱动器级。 当检测到&upbar&R信号的下降沿时,所有电路并联使能,但驱动器的操作被抑制。 只要一个&upbar&C&上>&R检测器识别&upbar&C和< upbar&R信号的哪个下降沿较早地变低,它向其中一个驱动器发送地址驱动信号,并立即发送外部地址或刷新地址 。 使用这种技术,消除了识别&upbar&R和& upbar&C信号的下降沿,发送刷新信号,接收它并将电路从外部地址切换到刷新地址的现有技术的顺序操作,并且被并行操作替代。 因此,动态存储器的建立时间减少到1-2ns。 通过本发明。
    • 5. 发明授权
    • Booster circuit
    • 增压电路
    • US4704706A
    • 1987-11-03
    • US850330
    • 1986-04-11
    • Masao NakanoYoshihiro TakemaeKimiaki SatoNobumi Kodama
    • Masao NakanoYoshihiro TakemaeKimiaki SatoNobumi Kodama
    • H03K19/096G11C5/14G11C8/08H03K17/06G11C7/00
    • G11C8/08
    • A booster circuit including a precharge capacitor (C.sub.2), a precharge driver circuit (20) having a first bootstrap circuit (C.sub.59, Q.sub.58, Q.sub.61) and precharging a voltage to the precharge capacitor in a reset mode, and an output driver circuit (19) having a switching circuit (Q.sub.21) for cutting off the output of the precharged voltage of the precharged capacitor in the reset mode and a second bootstrap circuit driving the switching circuit in an operation mode. The booster circuit further includes an additional switching circuit (Q.sub.1) for outputting a voltage to be superimposed onto the precharge voltage in the operation mode.The booster circuit may be applicable to a dynamic semiconductor memory device, for boosting a voltage of a word line at a high speed and for improving integration.
    • 一种升压电路,包括预充电电容器(C2),具有第一自举电路(C59,Q58,Q61)的预充电驱动电路(20),并且在复位模式下向预充电电容器预充电,以及输出驱动器电路 )具有用于在复位模式下切断预充电电容器的预充电电压的输出的开关电路(Q21)和在操作模式下驱动开关电路的第二自举电路。 升压电路还包括用于在操作模式中输出要叠加到预充电电压上的电压的附加开关电路(Q1)。 升压电路可以适用于动态半导体存储器件,用于高速提升字线的电压并改善集成度。
    • 6. 发明授权
    • Semiconductor memory device
    • 半导体存储器件
    • US4740926A
    • 1988-04-26
    • US843356
    • 1986-03-24
    • Yoshihiro TakemaeMasao NakanoKimiaki SatoNobumi Kodama
    • Yoshihiro TakemaeMasao NakanoKimiaki SatoNobumi Kodama
    • G11C11/409G11C11/4091G11C11/4094G11C7/00
    • G11C11/4094G11C11/4091
    • A semiconductor memory device comprises a memory cell array, a bit line charge-up circuit coupled to one of a plurality of pairs of bit lines from the memory cell array for initially charging up the one pair of bit lines to a first voltage which is lower than a power source voltage used to drive the semiconductor memory device, an active restore circuit coupled to the one pair of bit lines and a switching circuit coupled to the one pair of bit lines for disconnecting the one pair of bit lines into a first pair of bit line sections on the side of the memory cell array and a second pair of bit line sections on the side of the active restore circuit after the one pair of bit lines are initially charged up to the first voltage. The active restore circuit charges up one of the pair of bit line sections on the side of the active restore circuit to a second voltage which is higher than the first voltage depending on a datum read out from the memory cell array.
    • 半导体存储器件包括存储单元阵列,位线充电电路,其耦合到存储单元阵列的多对位线中的一对,用于将一对位线初始充电至较低的第一电压 比用于驱动半导体存储器件的电源电压,耦合到一对位线的有效恢复电路和耦合到该一对位线的开关电路,用于将一对位线断开为第一对位 在存储单元阵列一侧的位线部分和在一对位线开始被充电至第一电压之后的有效恢复电路侧的第二对位线部分。 有源恢复电路根据从存储单元阵列读出的数据,将有源恢复电路一侧的一对位线部分中的一个充电到高于第一电压的第二电压。