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    • 2. 发明授权
    • Photonic filter bank for high-speed analog-to-digital conversion
    • 用于高速模数转换的光子滤波器组
    • US07973688B2
    • 2011-07-05
    • US12200219
    • 2008-08-28
    • Yue-Kai HuangTing WangPhilip Nan Ji
    • Yue-Kai HuangTing WangPhilip Nan Ji
    • H03M1/00
    • G02F7/00
    • An analog to digital converter (ADC) structure and method includes a photonic filter bank having at least two filters. The at least two filters are configured to create a corresponding spectral tributary from an input signal at a target rate, and the at least two filters are configured to exhibit orthogonality properties between respective tributaries. An optical/electrical (O/E) converter is coupled to each of the at least two filters in a respective spectral tributary to convert an optical input to an electrical output. An analog to digital converter (ADC) is coupled to each of the O/E converters in a respective spectral tributary to sample the electrical output at a fraction of a target rate and to convert a sampled analog electrical output into a digital signal. A synthesis filter is coupled to each of the ADCs in a respective spectral tributary to reconstruct the input signal digitally at the target rate.
    • 模数转换器(ADC)结构和方法包括具有至少两个滤波器的光子滤波器组。 所述至少两个滤波器被配置为以目标速率从输入信号创建相应的频谱支路,并且所述至少两个滤波器被配置为在各个支路之间呈现正交性质。 光/电(O / E)转换器耦合到相应频谱支路中的至少两个滤波器中的每一个,以将光输入转换成电输出。 模数转换器(ADC)被耦合到相应频谱支路中的每个O / E转换器,以一小部分目标速率对电输出进行采样,并将采样的模拟电输出转换为数字信号。 合成滤波器耦合到相应频谱支路中的每个ADC,以目标速率数字地重构输入信号。
    • 10. 发明申请
    • PHOTONIC FILTER BANK FOR HIGH-SPEED ANALOG-TO-DIGITAL CONVERSION
    • 用于高速模拟数字转换的光电滤波器
    • US20090251345A1
    • 2009-10-08
    • US12200219
    • 2008-08-28
    • Yue-Kai HuangTing WangPhilip Nan Ji
    • Yue-Kai HuangTing WangPhilip Nan Ji
    • H03M1/00
    • G02F7/00
    • An analog to digital converter (ADC) structure and method includes a photonic filter bank having at least two filters. The at least two filters are configured to create a corresponding spectral tributary from an input signal at a target rate, and the at least two filters are configured to exhibit orthogonality properties between respective tributaries. An optical/electrical (O/E) converter is coupled to each of the at least two filters in a respective spectral tributary to convert an optical input to an electrical output. An analog to digital converter (ADC) is coupled to each of the O/E converters in a respective spectral tributary to sample the electrical output at a fraction of a target rate and to convert a sampled analog electrical output into a digital signal. A synthesis filter is coupled to each of the ADCs in a respective spectral tributary to reconstruct the input signal digitally at the target rate.
    • 模数转换器(ADC)结构和方法包括具有至少两个滤波器的光子滤波器组。 所述至少两个滤波器被配置为以目标速率从输入信号创建相应的频谱支路,并且所述至少两个滤波器被配置为在各个支路之间呈现正交性质。 光/电(O / E)转换器耦合到相应频谱支路中的至少两个滤波器中的每一个,以将光输入转换成电输出。 模数转换器(ADC)被耦合到相应频谱支路中的每个O / E转换器,以目标速率的一小部分对电输出进行采样,并将采样的模拟电输出转换为数字信号。 合成滤波器耦合到相应频谱支路中的每个ADC,以目标速率数字地重构输入信号。