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    • 3. 发明公开
    • 전압제어발진기기초 아날로그-디지털 변환기를 이용한 디지털화된 수신기
    • 使用基于电压控制的振荡器的模拟数字转换器的数字化接收器
    • KR1020100059005A
    • 2010-06-04
    • KR1020080117617
    • 2008-11-25
    • 한국과학기술원
    • 조성환김재욱
    • H03B5/12H03M1/12
    • H03M1/60H03B5/02H03M1/0626H04B1/403
    • PURPOSE: A digitalized receiver using a voltage controlled oscillator based analog-to-digital converter is provided to allow the digitalized receiver to be programmed by simultaneously processing a down conversion process and an analog-digital conversion process. CONSTITUTION: The digitized receiver(600) of a first structure comprises a low noise amplifier(610), a voltage controlled oscillator based analog-digital converter(620) and a digital signal processing unit(630). The low noise amplifier reduces noises from analog data signal including the noise and data. The low noise amplifier provides the amplified analog data signal. The voltage controlled oscillator based analog-digital converter provides digital output signal by converting the amplified analog data signal to digital signal. The digital signal processing unit processes the digital output signal.
    • 目的:提供使用基于压控振荡器的模数转换器的数字化接收器,以通过同时处理下变频处理和模数转换过程来对数字化接收机进行编程。 构成:第一结构的数字化接收器(600)包括低噪声放大器(610),基于压控振荡器的模拟数字转换器(620)和数字信号处理单元(630)。 低噪声放大器可以减少包括噪声和数据在内的模拟数据信号的噪声。 低噪声放大器提供放大的模拟数据信号。 基于压控振荡器的模拟数字转换器通过将放大的模拟数据信号转换为数字信号来提供数字输出信号。 数字信号处理单元处理数字输出信号。
    • 4. 发明公开
    • 오버샘플링에 의해 해상도를 향상시킨 아날로그-디지털변환방법
    • 通过超声波将模拟转换为数字增强分辨率的方法
    • KR1020080047192A
    • 2008-05-28
    • KR1020060117226
    • 2006-11-24
    • 한국과학기술원
    • 조성환김재욱
    • H03M1/12
    • H03M1/1245H03M1/20H03M2201/625H03M2201/71
    • A method for converting analog to digital with enhanced resolution by oversampling is provided to improve resolution by using a voltage controlled oscillator to quantize an analog signal and determining a digital code to be outputted by giving weighted values to various analog values after sampling the various analog values for one cycle of a reference clock. A method for converting analog to digital with enhance resolution by oversampling includes the steps of: generating an oversampling clock having a frequency N times more than a reference clock(S200); converting M analog input signals into M digital values(S400) after sampling and quantizing the M analog input signals for each cycle of the reference clock by being synchronized with the oversampling clock(S300); determining a weighted value for each of the M digital values(S600); and determining one digital code on the basis of the M digital values and the weighted value(S700).
    • 提供了通过过采样将模拟转换为数字增强分辨率的方法,通过使用压控振荡器来量化模拟信号并通过在对各种模拟值进行采样之后给予各种模拟值的加权值来确定要输出的数字码来确定要输出的数字码,以提高分辨率 用于参考时钟的一个周期。 一种通过过采样将模拟转换为数字增强分辨率的方法包括以下步骤:产生具有比参考时钟N倍的频率的过采样时钟(S200); 通过与过采样时钟同步(S300)对参考时钟的每个周期对M个模拟输入信号进行采样和量化后,将M个模拟输入信号转换为M个数字值(S400)。 确定每个M个数字值的加权值(S600); 并根据M个数字值和加权值确定一个数字代码(S700)。