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    • 1. 发明授权
    • Pipe counter signal generator processing double data in semiconductor device
    • 管道计数器信号发生器在半导体器件中处理双数据
    • US06215837B1
    • 2001-04-10
    • US09471382
    • 1999-12-22
    • Seung-Hyun Yi
    • Seung-Hyun Yi
    • G11C804
    • G11C7/1066G11C7/1039G11C7/1042G11C7/1072G11C8/04
    • Disclosed is a DDR SDRAM device which may be implemented by simply modifying a pipe counter for an SDR SDRAM device. A pipe counter comprising according to the present invention comprises: a controller for producing a counter control signal in response to rising and falling edge signals of an external clock signal; an enabling unit for producing a plurality of enable signals in response to the counter control signal and for enabling one of the enable signals during one period of the counter control signal; and a driver for receiving one of the enable signals, producing first and second pipe counter signals being synchronized with the rising and falling edge signals of the external clock signal, wherein one of the first and second pipe counter signals is activated during one period of the received enable signal. The DDR SDRAM according to the present invention improves its operation speed without increasing the clock frequency and the bandwidth thereof, by providing the pipe counter controlling data output path.
    • 公开了一种DDR SDRAM器件,其可以通过简单地修改SDR SDRAM器件的管道计数器来实现。 根据本发明的管道计数器包括:控制器,用于响应于外部时钟信号的上升沿和下降沿信号产生计数器控制信号; 启用单元,用于响应于所述计数器控制信号产生多个使能信号,并且用于在所述计数器控制信号的一个周期期间启用所述使能信号中的一个; 以及用于接收使能信号之一的驱动器,产生与外部时钟信号的上升沿和下降沿信号同步的第一和第二管道计数器信号,其中第一和第二管道计数器信号之一在一 接收使能信号。 根据本发明的DDR SDRAM通过提供管道计数器控制数据输出路径来提高其操作速度而不增加时钟频率及其带宽。
    • 2. 发明授权
    • Circuit for correcting duty factor of clock signal
    • 用于校正时钟信号占空比的电路
    • US06833744B2
    • 2004-12-21
    • US10688685
    • 2003-10-17
    • Seung Hyun Yi
    • Seung Hyun Yi
    • H03K3017
    • H03K5/151H03K5/135H03K5/1565H03K2005/00241H03L7/0814
    • Circuit for correcting a duty factor of a clock signal, including a phase comparator for detecting a phase difference of an input clock signal having a duty factor to be corrected, and a corrected clock signal having the duty factor corrected, and generating a shift control signal, a control signal generating part for shifting a clock generating reference signal in response to the shift control signal, and delaying the clock generating reference signal for a preset time period to generate 180° and 360° clock generating control signals, and a clock signal generating part for generating a clock signal having a corrected duty factor according to the 180° and 360° clock generating control signals.
    • 用于校正时钟信号的占空比的电路,包括用于检测具有要校正的占空因数的输入时钟信号的相位差的相位比较器和校正的占空因数的校正时钟信号,并产生移位控制信号 控制信号产生部分,用于响应于移位控制信号移位时钟产生参考信号,并延迟时钟产生参考信号预设的时间周期以产生180°和360°的时钟产生控制信号,以及产生时钟信号 用于产生具有根据180°和360°时钟产生控制信号的校正占空比的时钟信号的部分。
    • 3. 发明授权
    • Data strobe buffer in SDRAM
    • SDRAM中的数据选通缓冲区
    • US06314050B1
    • 2001-11-06
    • US09609323
    • 2000-06-30
    • Seung-Hyun YiJong-Hee Han
    • Seung-Hyun YiJong-Hee Han
    • G11C700
    • G11C7/222G11C7/1051G11C7/1072G11C7/22
    • A data strobe buffer in SDRAM is disclosed. The data strobe buffer for a synchronous dynamic read only memory (SDRAM), comprising: a first dynamic buffer generating a first pulse at a rising edge of a data strobe signal; a second dynamic buffer generating a second pulse at a falling edge of the data strobe signal; and a block for generating an enable signal which is enabled in a range between a rising edge of an external clock signal and a logic high state of the second pulse, and providing the second dynamic buffer with the enable signal. The data strobe buffer ensures a minimum value of tDQSS parameter in DDR SDRAM even if speed of the chip increases or operation condition of the chip becomes tight, thereby preventing the data strobe buffer from being misoperated due to the damping and the fluctuation of the data strobe signal.
    • 公开了SDRAM中的数据选通缓冲器。 用于同步动态只读存储器(SDRAM)的数据选通缓冲器,包括:第一动态缓冲器,在数据选通信号的上升沿产生第一脉冲; 第二动态缓冲器,在所述数据选通信号的下降沿产生第二脉冲; 以及用于产生使能信号的块,其在外部时钟信号的上升沿和第二脉冲的逻辑高状态之间的范围内被使能,并且向第二动态缓冲器提供使能信号。 数据选通缓冲器确保DDR SDRAM中的tDQSS参数的最小值,即使芯片的速度增加或芯片的操作条件变得紧张,从而防止数据选通缓冲区由于阻尼和数据选通的波动而被误操作 信号。
    • 5. 发明授权
    • Address strobe signal generator for memory device
    • 地址选通信号发生器用于存储器件
    • US06356502B1
    • 2002-03-12
    • US09428131
    • 1999-10-26
    • Seung-Hyun Yi
    • Seung-Hyun Yi
    • G11C800
    • G11C8/18G11C5/06
    • An apparatus and method for decoding address signals. The apparatus generally comprises an address buffer array, a buffer controller coupled to the address buffer array, an address decoder coupled to the address buffer array and a strobe generator coupled to the address decoder and the buffer controller. The address buffer array buffers address signals in response to an address strobe from the buffer controller. The strobe generator generates a decoding strobe in response to the address strobe. The decoding strobe signals the address decoder to decode the address signals received from the address buffer array. To synchronize the arrival of the decoding strobe and the buffered address signals at the decoder, the strobe generator has one or more signal transfer characteristics in common with one or more of the address buffers. In a specific embodiment, the strobe generator has a longer signal transfer delay than any address buffer in the address buffer array. Thus, the decoding strobe determines an input timing margin of the address decoder.
    • 一种用于解码地址信号的装置和方法。 该装置通常包括地址缓冲器阵列,耦合到地址缓冲器阵列的缓冲器控制器,耦合到地址缓冲器阵列的地址解码器和耦合到地址解码器和缓冲器控制器的选通发生器。 响应于来自缓冲器控制器的地址选通,地址缓冲器阵列缓冲地址信号。 选通发生器响应于地址选通器产生解码选通。 解码选通信号通知地址解码器以解码从地址缓冲器阵列接收的地址信号。 为了在解码器处同步解码选通和缓冲的地址信号的到来,选通发生器具有与一个或多个地址缓冲器相同的一个或多个信号传送特性。 在具体实施例中,选通发生器具有比地址缓冲器阵列中的任何地址缓冲器更长的信号传输延迟。 因此,解码选通器确定地址解码器的输入定时裕度。
    • 9. 发明授权
    • Apparatus for driving cell plate line of memory device using two power
supply voltage sources
    • 用于使用两个电源电压源驱动存储器件的单元板线的装置
    • US6101119A
    • 2000-08-08
    • US428547
    • 1999-10-28
    • Seung-Hyun YiJae-Whan Kim
    • Seung-Hyun YiJae-Whan Kim
    • G11C11/407G11C11/22G11C11/24
    • G11C11/22
    • An apparatus for driving a cell plate line of a semiconductor memory device having a plurality of memory cells, includes: a first driving means for driving the cell plate line with a first power supply voltage; a second driving means for driving the cell plate line with a second power supply voltage higher than the first power supply voltage; and a driving control means for enabling said second driving means for a predetermined time in order to activate the cell plate line in response to a control signal from an external circuit and enabling said first driving means after the predetermined time in order to stabilize said second driving means enables, wherein the control signal is employed to select one memory cell related to the cell plate line. Thereby, the apparatus can the high-speed operation of a ferroelectric random access memory (FeRAM) by using two power supply voltage sources.
    • 一种用于驱动具有多个存储单元的半导体存储器件的单元板线的装置,包括:用于以第一电源电压驱动单元板线的第一驱动装置; 第二驱动装置,用于以高于第一电源电压的第二电源电压驱动单元板板线; 以及驱动控制装置,用于使所述第二驱动装置能够预定的时间,以便响应于来自外部电路的控制信号激活所述单元板线,并且在所述预定时间之后启用所述第一驱动装置,以便稳定所述第二驱动 装置使能,其中所述控制信号用于选择与所述细胞板线有关的一个存储单元。 因此,该装置可以通过使用两个电源电压源来高速运行铁电随机存取存储器(FeRAM)。