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    Analog-to-Digital Conversion Method Using RC Time Constant Calibrator and Analog-to-Digital Converter Therefor
    2.
    发明申请
    Analog-to-Digital Conversion Method Using RC Time Constant Calibrator and Analog-to-Digital Converter Therefor 有权
    使用RC时间常数校准器和模数转换器的模数转换方法

    公开(公告)号：US20100207800A1

    公开(公告)日：2010-08-19

    申请号：US12705387

    申请日：2010-02-12

    申请人： Seung Chan Heo ,  Sang Youb Lee ,  Ji-Soo Chang

    发明人： Seung Chan Heo ,  Sang Youb Lee ,  Ji-Soo Chang

    IPC分类号： H03M1/12

    CPC分类号： H03M1/50

    摘要： An analog-to-digital conversion method using an RC time constant calibrator is provided. The method includes the operations of comparing a crossing time point at which a first reference signal and a second reference signal cross each other with a target time point and calibrating an RC time constant according to a result of the comparison. A length of time until the crossing time point at which a first analog signal and a second analog signal cross each other is counted based on a calibrated RC time constant. The counted value is output.

    摘要翻译： 提供了使用RC时间常数校准器的模数转换方法。 该方法包括将第一参考信号和第二参考信号彼此交叉的交叉时间点与目标时间点进行比较的操作，并且根据比较结果校准RC时间常数。 基于校准的RC时间常数来计数直到第一模拟信号和第二模拟信号彼此交叉的交叉时间点的时间长度。 输出计数值。

    Method for calibrating a filter, a calibrator and system including the same
    3.
    发明申请
    Method for calibrating a filter, a calibrator and system including the same 有权
    用于校准过滤器，校准器和包括其的系统的方法

    公开(公告)号：US20080088364A1

    公开(公告)日：2008-04-17

    申请号：US11902417

    申请日：2007-09-21

    申请人： Seung-Chan Heo

    发明人： Seung-Chan Heo

    IPC分类号： H03H11/04 ,  H03H7/06

    CPC分类号： H03H11/1291 ,  H03H2210/025 ,  H03H2210/036 ,  H03H2210/043

    摘要： An example embodiment provides a method for calibrating an active RC filter and RC time constant calibrator for an active RC filter. The RC time contact calibrator includes a RC timer and a calibration code generator. The RC timer outputs a holding signal based on a comparison of a first output signal and a second output signal. The holding signal output by the RC timer causes a digital count value to be compared to a digital target value. The calibration code generator generates a slope control code and a flag signal based on the comparison of the digital count value and the digital target value and outputs the slope control code as a calibration code based on the flag signal. The slope control code controls the slope of the first output signal and the slope of the second output signal.

    摘要翻译： 示例性实施例提供了一种校准用于有源RC滤波器的有源RC滤波器和RC时间常数校准器的方法。 RC时间接触校准器包括RC定时器和校准码发生器。 RC定时器基于第一输出信号和第二输出信号的比较输出保持信号。 由RC定时器输出的保持信号使数字计数值与数字目标值进行比较。 基于数字计数值与数字目标值的比较，校准代码生成器生成斜率控制代码和标志信号，并且基于标志信号输出斜率控制代码作为校准代码。 斜率控制码控制第一输出信号的斜率和第二输出信号的斜率。

    Analog-to-digital conversion method using RC time constant calibrator and analog-to-digital converter therefor
    6.
    发明授权
    Analog-to-digital conversion method using RC time constant calibrator and analog-to-digital converter therefor 有权
    使用RC时间常数校准器和模数转换器的模数转换方法

    公开(公告)号：US08159378B2

    公开(公告)日：2012-04-17

    申请号：US12705387

    申请日：2010-02-12

    申请人： Seung Chan Heo ,  Sang Youb Lee ,  Ji-Soo Chang

    发明人： Seung Chan Heo ,  Sang Youb Lee ,  Ji-Soo Chang

    IPC分类号： H03M1/06

    CPC分类号： H03M1/50

    摘要： An analog-to-digital conversion method using an RC time constant calibrator is provided. The method includes the operations of comparing a crossing time point at which a first reference signal and a second reference signal cross each other with a target time point and calibrating an RC time constant according to a result of the comparison. A length of time until the crossing time point at which a first analog signal and a second analog signal cross each other is counted based on a calibrated RC time constant. The counted value is output.

    摘要翻译： 提供了使用RC时间常数校准器的模数转换方法。 该方法包括将第一参考信号和第二参考信号彼此交叉的交叉时间点与目标时间点进行比较的操作，并且根据比较结果校准RC时间常数。 基于校准的RC时间常数来计数直到第一模拟信号和第二模拟信号彼此交叉的交叉时间点的时间长度。 输出计数值。

    Method for calibrating a filter, a calibrator and system including the same
    7.
    发明授权
    Method for calibrating a filter, a calibrator and system including the same 有权
    用于校准过滤器，校准器和包括其的系统的方法

    公开(公告)号：US07574317B2

    公开(公告)日：2009-08-11

    申请号：US11902417

    申请日：2007-09-21

    申请人： Seung-Chan Heo

    发明人： Seung-Chan Heo

    IPC分类号： G01R35/00 ,  G01R27/28

    CPC分类号： H03H11/1291 ,  H03H2210/025 ,  H03H2210/036 ,  H03H2210/043

    摘要： An example embodiment provides a method for calibrating an active RC filter and RC time constant calibrator for an active RC filter. The RC time contact calibrator includes a RC timer and a calibration code generator. The RC timer outputs a holding signal based on a comparison of a first output signal and a second output signal. The holding signal output by the RC timer causes a digital count value to be compared to a digital target value. The calibration code generator generates a slope control code and a flag signal based on the comparison of the digital count value and the digital target value and outputs the slope control code as a calibration code based on the flag signal. The slope control code controls the slope of the first output signal and the slope of the second output signal.

    摘要翻译： 示例性实施例提供了一种校准用于有源RC滤波器的有源RC滤波器和RC时间常数校准器的方法。 RC时间接触校准器包括RC定时器和校准码发生器。 RC定时器基于第一输出信号和第二输出信号的比较输出保持信号。 由RC定时器输出的保持信号使数字计数值与数字目标值进行比较。 基于数字计数值与数字目标值的比较，校准代码生成器生成斜率控制代码和标志信号，并且基于标志信号输出斜率控制代码作为校准代码。 斜率控制代码控制第一输出信号的斜率和第二输出信号的斜率。

    High-order low-pass filter circuit and method
    8.
    发明授权
    High-order low-pass filter circuit and method 有权
    高阶低通滤波电路及方法

    公开(公告)号：US07592864B2

    公开(公告)日：2009-09-22

    申请号：US12124405

    申请日：2008-05-21

    申请人： Sang Hoon Kang ,  Seung Chan Heo ,  Ji Soo Jang ,  Hui Jung Kim

    发明人： Sang Hoon Kang ,  Seung Chan Heo ,  Ji Soo Jang ,  Hui Jung Kim

    IPC分类号： H03K5/00

    CPC分类号： H03H11/1252 ,  H03H11/126

    摘要： A low-pass filtering circuit and method are disclosed. The circuit includes a low-pass filter with a capacitor, and a multiplier configured to multiply the capacitance of the capacitor by feeding-back a high-frequency signal apparent in an output signal of the low-pass filter to the capacitor.

    摘要翻译： 公开了一种低通滤波电路和方法。 电路包括具有电容器的低通滤波器，以及乘法器，被配置为通过将低通滤波器的输出信号中看起来的高频信号反馈到电容器来乘法电容器的电容。

    HIGH-ORDER LOW-PASS FILTER CIRCUIT AND METHOD
    9.
    发明申请
    HIGH-ORDER LOW-PASS FILTER CIRCUIT AND METHOD 有权
    高阶低通滤波电路及方法

    公开(公告)号：US20080303589A1

    公开(公告)日：2008-12-11

    申请号：US12124405

    申请日：2008-05-21

    申请人： Sang Hoon KANG ,  Seung Chan HEO ,  Ji Soo JANG ,  Hui Jung KIM

    发明人： Sang Hoon KANG ,  Seung Chan HEO ,  Ji Soo JANG ,  Hui Jung KIM

    IPC分类号： H03H11/04

    CPC分类号： H03H11/1252 ,  H03H11/126

    摘要： A low-pass filtering circuit and method are disclosed. The circuit includes a low-pass filter with a capacitor, and a multiplier configured to multiply the capacitance of the capacitor by feeding-back a high-frequency signal apparent in an output signal of the low-pass filter to the capacitor.

    摘要翻译： 公开了一种低通滤波电路和方法。 电路包括具有电容器的低通滤波器，以及乘法器，被配置为通过将低通滤波器的输出信号中看起来的高频信号反馈到电容器来乘法电容器的电容。