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    • 4. 发明授权
    • Signal processing device, signal processing method, reception device, transmission/reception device, communication module, and electronic device
    • 信号处理装置,信号处理方法,接收装置,发送/接收装置,通信模块和电子装置
    • US08508396B2
    • 2013-08-13
    • US13003778
    • 2009-02-20
    • Akira EnamiKeisuke UnoHayami HosokawaKentaro HamanaTetsuya Nosaka
    • Akira EnamiKeisuke UnoHayami HosokawaKentaro HamanaTetsuya Nosaka
    • H03M1/00
    • H03F3/087
    • It is possible to reduce a noise component mixed in an analog signal while suppressing increase of power consumption. An amplification unit amplifies the inputted analog signal and converts the amplified signal into a digital signal of a predetermined format for output. The amplification unit includes: an analog circuit unit for processing an analog signal; and a digital circuit unit for processing a digital signal; wherein the circuits are arranged on a substrate. The analog circuit unit includes: an amplification circuit for amplifying the inputted analog signal; and an LPF for cutting off a high frequency component of the amplified analog signal. The digital circuit unit includes: a rectification circuit which rectifies a waveform of the signal whose high-frequency component is cut off; and digital output circuit which converts the waveform-rectified signal into a digital signal of a predetermined format for output.
    • 可以抑制模拟信号中混合的噪声成分,同时抑制功耗的增加。 放大单元放大输入的模拟信号,并将放大的信号转换成预定格式的数字信号以输出。 放大单元包括:模拟电路单元,用于处理模拟信号; 以及用于处理数字信号的数字电路单元; 其中所述电路布置在基板上。 模拟电路单元包括:放大电路,用于放大输入的模拟信号; 以及用于切断放大的模拟信号的高频分量的LPF。 数字电路单元包括:整流电路,其对高频分量被切断的信号的波形进行整流; 以及将波形整流信号转换为预定格式的数字信号以输出的数字输出电路。