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
    • 4. 发明授权
    • Ladder type clock network for reducing skew of clock signals
    • 梯形时钟网络,用于减少时钟信号的偏移
    • US06483364B2
    • 2002-11-19
    • US09864190
    • 2001-05-25
    • Young-don ChoiChang-sik YooKee-wook JungWon-chan Kim
    • Young-don ChoiChang-sik YooKee-wook JungWon-chan Kim
    • G06F104
    • H03K5/15013G06F1/10H03K5/135
    • A ladder type clock network for reducing the skew of clock signals is provided. The clock network includes a buffer for buffering a clock signal, first delay units for delaying the output of the first buffer by a set time, second buffers connected to respective outputs of the first delay units, and second delay units connected to respective outputs of the second buffers. The first delay units and the second delay units consist essentially of the resistance and capacitance of lines through which the clock signal propagates. Accordingly, the skew of the internal clock signals is reduced, and internal clock signals having a stable duty with respect to variations in a semiconductor device manufacturing process, temperature, and power supply voltage, are generated.
    • 提供了一种用于减少时钟信号偏斜的梯形时钟网络。 时钟网络包括用于缓冲时钟信号的缓冲器,用于将第一缓冲器的输出延迟设定时间的第一延迟单元,连接到第一延迟单元的相应输出的第二缓冲器,以及连接到第一延迟单元的相应输出的第二延迟单元 第二缓冲区。 第一延迟单元和第二延迟单元基本上由时钟信号传播的线路的电阻和电容组成。 因此,内部时钟信号的偏斜减小,并且产生相对于半导体器件制造工艺,温度和电源电压的变化具有稳定占空比的内部时钟信号。
    • 6. 发明授权
    • Input buffer circuit for transforming pseudo differential signals into full differential signals
    • 输入缓冲电路,用于将伪差分信号变换为全差分信号
    • US06456122B1
    • 2002-09-24
    • US09899223
    • 2001-07-06
    • Joon-young ParkChang-sik YooKee-wook JungWon-chan Kim
    • Joon-young ParkChang-sik YooKee-wook JungWon-chan Kim
    • G11C706
    • H03K3/35613H03K5/2481H03K19/01721H03K19/018528
    • An input buffer circuit for transforming pseudo differential input signals into full differential output signals wherein, the input buffer circuit includes a pull-up current source, two pull-down current sources, a differential input portion, and a positive feedback portion. The pull-up current source is formed of two PMOS transistors which are always in an “on” state, and provides an electric current. The two pull-down current sources are each formed of an NMOS transistor, which are always in an on state, and sink a pull-up electric current. The differential input portion is formed of two NMOS transistors, and receives an input signal and a reference signal, respectively. The positive feedback portion is formed of two NMOS transistors, and enlarges a voltage difference between two output terminals of the input circuit using positive feedback.
    • 一种用于将伪差分输入信号变换为全差分输出信号的输入缓冲电路,其中,输入缓冲电路包括上拉电流源,两个下拉电流源,差分输入部分和正反馈部分。 上拉电流源由总是处于“导通”状态的两个PMOS晶体管形成,并且提供电流。 两个下拉电流源各自由NMOS晶体管形成,它们总是处于导通状态,并且吸收上拉电流。 差分输入部分由两个NMOS晶体管构成,分别接收输入信号和参考信号。 正反馈部分由两个NMOS晶体管形成,并且使用正反馈放大输入电路的两个输出端之间的电压差。
    • 10. 发明授权
    • Clock synchronization circuit and semiconductor device having the same
    • 时钟同步电路和具有该时钟同步电路的半导体器件
    • US06385126B2
    • 2002-05-07
    • US09757792
    • 2001-01-11
    • Yeon-jae JungSeung-wook LeeDae-yun ShimWon-chan Kim
    • Yeon-jae JungSeung-wook LeeDae-yun ShimWon-chan Kim
    • G11C800
    • G11C7/222G06F1/12G11C7/22G11C11/4076H03L7/07H03L7/0814H03L7/0893
    • A clock synchronization circuit is provided for synchronizing an external clock signal with an internal clock signal. The circuit is connected to a clock buffer adapted to output the internal clock signal. The circuit includes a first loop adapted to receive the external clock signal and output a plurality of reference clock signals having a predetermined phase difference therebetween. A second loop is adapted to delay the plurality of reference clock signals; select a signal from among the plurality of delayed reference clock signals; provide the selected signal to the clock buffer; detect a phase difference between the internal clock signal output from the clock buffer and the external clock signal; generate a plurality of control voltages to reduce the detected phase difference, and control a delay amount of each of the plurality of reference clock signals in response to the plurality of control voltages; so as to synchronize the internal clock signal with the external clock signal.
    • 提供时钟同步电路,用于使外部时钟信号与内部时钟信号同步。 该电路连接到适于输出内部时钟信号的时钟缓冲器。 该电路包括适于接收外部时钟信号并输出​​其间具有预定相位差的多个参考时钟信号的第一回路。 第二环路适于延迟多个参考时钟信号; 从所述多个延迟参考时钟信号中选择信号; 将选择的信号提供给时钟缓冲器; 检测从时钟缓冲器输出的内部时钟信号与外部时钟信号之间的相位差; 产生多个控制电压以减小检测到的相位差,并且响应于多个控制电压来控制多个参考时钟信号中的每一个的延迟量; 以使内部时钟信号与外部时钟信号同步。