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    • 5. 发明授权
    • Analog-to-digital converter
    • 模数转换器
    • US06930630B1
    • 2005-08-16
    • US11021963
    • 2004-12-23
    • Se-Jun KimSang-Hoon HongJae-Bum Ko
    • Se-Jun KimSang-Hoon HongJae-Bum Ko
    • H03M1/06H03M1/48H03M1/68H03M1/12
    • H03M1/0607H03M1/48H03M1/687
    • An analog-to-digital converter outputs a reliable digital value corresponding to an input analog value without regard to variation of process, temperature and driving voltage. The analog-to-digital converter includes a voltage comparator for comparing an input voltage with a comparison voltage, a binary up/down counter for up/down converting an outputted binary digital code based on the comparison result of the voltage comparator, a digital-to-analog converting unit for converting the binary digital code that is transferred from the up/down counter as the comparison voltage by using a bias voltage and an offset voltage and for outputting a feedback upper threshold voltage and a feedback lower threshold voltage, and a feedback bias unit for comparing the feedback upper threshold voltage with an upper threshold voltage having the maximum level of the input voltage to output the bias voltage and comparing the feedback lower threshold voltage with a lower threshold voltage having the minimum level of the input voltage to output the offset voltage.
    • 模数转换器输出对应于输入模拟值的可靠数字值,而不考虑过程,温度和驱动电压的变化。 模数转换器包括用于将输入电压与比较电压进行比较的电压比较器,用于根据电压比较器的比较结果对输出的二进制数字代码进行上/下转换的二进制递增/递减计数器, 模拟转换单元,用于通过使用偏置电压和偏移电压来转换从上/下计数器传送的二进制数字代码作为比较电压,并输出反馈上阈值电压和反馈下阈值电压,以及 反馈偏置单元,用于将反馈上阈值电压与具有输入电压的最大电平的上阈值电压进行比较,以输出偏置电压,并将反馈下阈值电压与具有输入电压的最小电平的较低阈值电压进行比较以输出 偏移电压。
    • 8. 发明授权
    • Semiconductor memory device capable of accessing data in continuous burst mode regardless of location of accessed data
    • 能够以连续脉冲串模式访问数据而不管访问数据的位置如何的半导体存储器件
    • US06930951B2
    • 2005-08-16
    • US10744322
    • 2003-12-22
    • Jin-Hong AhnSang-Hoon HongJae-Bum KoSe-Jun Kim
    • Jin-Hong AhnSang-Hoon HongJae-Bum KoSe-Jun Kim
    • G11C8/08G11C7/10G11C8/00G11C8/12
    • G11C7/1018
    • There is provided a semiconductor memory device and a method for driving the same, which is capable of accessing data in a continuous burst mode regardless of locations of accessed data. The semiconductor memory device includes: a first bank including a first word line corresponding to a first row address; and a second bank including a second word line corresponding to a second row address, wherein the second row address is consecutive to the first row address. The method for driving a semiconductor memory device includes the steps of: receiving a first row address corresponding to a command; activating a word line of a first bank corresponding to the first row address; activating a word line of a second bank corresponding to a second row address, in which the second row address is consecutive to the first row address; sequentially accessing the predetermined number of data among the N data in a plurality of unit cells corresponding to the word line of the first bank; and sequentially accessing the remaining data in a plurality of unit cells corresponding to a word line of the second bank.
    • 提供了一种半导体存储器件及其驱动方法,其能够以连续的突发模式访问数据,而不管访问数据的位置如何。 半导体存储器件包括:第一存储体,包括对应于第一行地址的第一字线; 以及包括对应于第二行地址的第二字线的第二存储体,其中所述第二行地址与所述第一行地址连续。 驱动半导体存储器件的方法包括以下步骤:接收与命令对应的第一行地址; 激活对应于第一行地址的第一存储体的字线; 激活对应于第二行地址的第二存储体的字线,其中第二行地址与第一行地址连续; 在对应于第一存储单元的字线的多个单位单元中,依次访问N个数据中的预定数量的数据; 并且依次访问与第二存储体的字线对应的多个单位单元中的剩余数据。
    • 10. 发明授权
    • Semiconductor memory device with optimum refresh cycle according to temperature variation
    • 半导体存储器件根据温度变化具有最佳的刷新周期
    • US08520450B2
    • 2013-08-27
    • US13196779
    • 2011-08-02
    • Se-Jun KimSang-Hoon HongJae-Bum Ko
    • Se-Jun KimSang-Hoon HongJae-Bum Ko
    • G11C7/06
    • G11C11/40626G11C11/406G11C2211/4061
    • Methods for generating a refresh signal in a semiconductor device and methods for performing a refresh operation in a semiconductor memory device are disclosed. A method for generating a refresh signal includes measuring a temperature of the semiconductor memory device, generating a temperature controlled voltage based on the measured temperature, generating an N-bit digital signal based on the temperature controlled voltage, and generating a refresh signal whose frequency is determined by the N-bit digital signal. The generation of the temperature controlled voltage includes generating a first current that is increased when the measured temperature is decreased and is decreased with the measured temperature is increased, and generating the temperature controlled voltage.
    • 公开了一种用于在半导体器件中产生刷新信号的方法和用于在半导体存储器件中执行刷新操作的方法。 一种产生刷新信号的方法包括测量半导体存储器件的温度,基于测量的温度产生温度控制电压,基于温度控制电压产生N位数字信号,并产生频率为 由N位数字信号决定。 产生温度控制电压包括产生在测量温度降低时增加的第一电流,并且随着测量温度的升高而降低,并产生温度控制电压。