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    • 1. 发明授权
    • Pump circuit boosting a supply voltage
    • 泵电路提升电源电压
    • US06326834B1
    • 2001-12-04
    • US09602896
    • 2000-06-23
    • Hironobu AkitaMasaharu WadaKenji TsuchidaHironori Banba
    • Hironobu AkitaMasaharu WadaKenji TsuchidaHironori Banba
    • G05F110
    • H02M3/073
    • First transistors for charging respective one side nodes of a plurality of capacitors are connected to these nodes of the capacitors, respectively. Second transistors for outputting electric charge of each capacitor are connected between respective one side nodes of the capacitors and an output terminal, respectively. A plurality of third transistors for transferring the electric charge of the other side nodes of the capacitors to the other nodes are connected to the respective other nodes. The electric charge of each capacitor is serially transferred from nodes of a high electric potential to nodes of a lower electric potential through one path by sequentially controlling the third transistors, or the electric charge of each capacitor is parallel transferred between arbitrary nodes of a high electric potential and low nodes through a plurality of paths. By these operations, electric charge of each capacitor is recycled.
    • 用于对多个电容器的各个侧面节点进行充电的第一晶体管分别连接到电容器的这些节点。 用于输出每个电容器的电荷的第二晶体管分别连接在电容器的相应的一个侧面节点和输出端子之间。 用于将电容器的另一侧节点的电荷转移到其他节点的多个第三晶体管连接到相应的其他节点。 每个电容器的电荷通过顺序地控制第三晶体管,通过一个路径从高电位的节点被串行地传递到较低电位的节点,或者每个电容器的电荷在高电位的任意节点之间并行传送 潜在和低节点通过多个路径。 通过这些操作,每个电容器的电荷被再循环。
    • 3. 发明授权
    • Clock signal generator circuit and semiconductor integrated circuit with the same circuit
    • 时钟信号发生器电路和半导体集成电路具有相同的电路
    • US06608514B1
    • 2003-08-19
    • US09511352
    • 2000-02-23
    • Hironobu AkitaKatsuaki IsobeMasaharu WadaKenji TsuchidaHaruki Toda
    • Hironobu AkitaKatsuaki IsobeMasaharu WadaKenji TsuchidaHaruki Toda
    • H03K300
    • G11C7/222G11C7/22H03K5/00006H03K5/135
    • A clock signal generator circuit comprises an off-chip driver, a first clock control circuit for outputting a first internal clock signal Tu synchronizing with an external clock signal CK, a second clock control circuit for outputting a second internal clock signal Td 180° out-of-phase with the external clock signal CK, a third clock control circuit for outputting a third internal clock signal aTx1 synchronizing with the first clock signal Tu and advanced in phase by at least the signal delay time in the off-chip driver, a fourth clock control circuit for outputting a fourth internal clock signal aTx2 synchronizing with the second clock signal Td and advanced in phase by at least the signal delay time in the off-chip driver, an OR circuit to which the third and fourth internal clock signals aTx1, aTx2 are inputted and which outputs a fifth internal clock signal aTx, and a fifth clock control circuit for outputting a sixth internal clock signal Tx which is in synchronization with the fifth internal clock signal aTx outputted from the OR circuit, has twice the frequency of the external clock signal CK, and is advanced in phase by the signal delay time in the off-chip driver.
    • 时钟信号发生器电路包括片外驱动器,用于输出与外部时钟信号CK同步的第一内部时钟信号Tu的第一时钟控制电路,用于将第二内部时钟信号Td 180°输出的第二时钟控制电路, 与外部时钟信号CK的同相;第三时钟控制电路,用于输出与第一时钟信号Tu同步的第三内部时钟信号aTx1并至少在芯片外驱动器中的信号延迟时间相位前进;第四时钟控制电路, 时钟控制电路,用于输出与第二时钟信号Td同步的第四内部时钟信号aTx2并至少在片外驱动器中的信号延迟时间相位前进;第三和第四内部时钟信号aTx1, 输入aTx2并输出第五内部时钟信号aTx,以及第五时钟控制电路,用于输出与f同步的第六内部时钟信号Tx 从OR电路输出的第四内部时钟信号aTx具有外部时钟信号CK的两倍频率,并且在片外驱动器中相位提前信号延迟时间。
    • 4. 发明授权
    • Analog synchronization circuit
    • 模拟同步电路
    • US06333658B1
    • 2001-12-25
    • US09707791
    • 2000-11-08
    • Hironobu AkitaSatoshi EtoKatsuaki IsobeMasaharu WadaHaruki Toda
    • Hironobu AkitaSatoshi EtoKatsuaki IsobeMasaharu WadaHaruki Toda
    • H03H1126
    • H03K5/135
    • An analog synchronization circuit includes an input buffer which is supplied with an external clock signal, a delay monitor which is supplied with a clock signal output from the input buffer, an output buffer for outputting a clock signal synchronous with the external clock signal and two charge balance delay circuits. The two charge balance delay circuits are equivalent to delay lines in a mirror type delay locked loop. Each charge balance delay circuits operates once in two consecutive cycles of the external clock signal. The two charge balance delay circuits alternately operate and output signals of the charge balance delay circuits are supplied to the output buffer via an OR gate. First and second capacitors are provided in each charge balance delay circuits. A first current source circuit charges the first capacitor for a time equivalent to a delay time of a forward pulse. The second capacitor is charged by a second current source circuit. A comparator compares charge voltages of the first and second capacitors with each other and generates a timing signal when both charge voltages coincide with each other.
    • 模拟同步电路包括被提供有外部时钟信号的输入缓冲器,被提供有从输入缓冲器输出的时钟信号的延迟监视器,用于输出与外部时钟信号同步的时钟信号的输出缓冲器和两个充电 平衡延迟电路。 两个电荷平衡延迟电路等效于镜像延迟锁定环路中的延迟线。 每个电荷平衡延迟电路在外部时钟信号的两个连续周期中运行一次。 两个电荷平衡延迟电路交替工作,并且电荷平衡延迟电路的输出信号通过或门提供给输出缓冲器。 在每个电荷平衡延迟电路中提供第一和第二电容器。 第一电流源电路对第一电容器充电等于正向脉冲的延迟时间的时间。 第二电容器由第二电流源电路充电。 比较器将第一和第二电容器的充电电压彼此进行比较,并且当两个充电电压彼此一致时产生定时信号。
    • 6. 发明授权
    • Semiconductor memory device
    • 半导体存储器件
    • US6144599A
    • 2000-11-07
    • US191414
    • 1998-11-12
    • Hironobu AkitaKenji Tsuchida
    • Hironobu AkitaKenji Tsuchida
    • G11C11/409G11C7/06G11C7/12G11C11/401G11C11/4091G11C11/4094G11C29/00G11C29/04G11C11/419
    • G11C7/06G11C11/4091G11C11/4094G11C7/12G11C29/83
    • In a DRAM semiconductor device comprising a bit line equalizer for setting a potential on paired bit lines to a potential on a precharge power source line, a sense amplifier circuit amplifying a potential difference across the paired bit lines and detecting data, sense amplifier drive lines, for applying a sense amplifier drive signal for driving the sense amplifier circuit to the sense amplifier circuit, and a sense amplifier/drive line equalizer, a current limiter element is so provided that, between a precharge power source line and the sense amplifier drive line, it is connected in series with the current path of the equalizer. By so providing the current limiter element, it is possible to, even if there occurs any cross-fail between the bit line and the word line, reduce a short-circuiting current at a precharging time or prevent generation of the short-circuiting current.
    • 在包括用于将成对位线上的电位设置为预充电电源线上的电位的位线均衡器的DRAM半导体器件中,放大成对位线之间的电位差和检测数据,读出放大器驱动线的读出放大器电路, 为了将读出放大器驱动信号用于驱动读出放大器电路到读出放大器电路,以及读出放大器/驱动线均衡器,限流元件被设置成在预充电电源线和读出放大器驱动线之间, 它与均衡器的当前路径串联连接。 通过提供电流限制器元件,即使在位线和字线之间发生任何交叉故障,也可以在预充电时间减少短路电流或者防止短路电流的产生。
    • 7. 发明授权
    • Semiconductor memory device
    • 半导体存储器件
    • US06452833B2
    • 2002-09-17
    • US09773606
    • 2001-02-02
    • Hironobu AkitaKenji TsuchidaFumihiro Kohno
    • Hironobu AkitaKenji TsuchidaFumihiro Kohno
    • G11C1124
    • G11C7/12G11C11/4094
    • A BL kicker circuit includes first capacitors each of which is connected at one end to a first bit line which is one of bit lines of a corresponding pair and commonly connected at the other end, second capacitors each of which is connected at one end to a second bit line which is the other one of the bit lines of a corresponding pair and commonly connected at the other end, a first driver circuit having an output node for a first signal connected to the common connection node of the other ends of the first capacitors, a second drive circuit having an output node for a second signal connected to the common connection node of the other ends of the second capacitors, and a switch circuit used as an equalizing circuit connected between the output node for the first signal and the output node for the second signal.
    • BL激光电路包括第一电容器,每个电容器的一端连接到第一位线,第一位线是相应对的位线之一,并且在另一端共同连接,第二电容器的一端连接到一端 第二位线,其是相应对中的另一个位线并且在另一端共同连接,第一驱动器电路具有用于连接到第一电容器的另一端的公共连接节点的第一信号的输出节点 具有连接到第二电容器的另一端的公共连接节点的第二信号的输出节点的第二驱动电路和用作连接在第一信号的输出节点和输出节点之间的均衡电路的开关电路 对于第二个信号。