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    • 9. 发明公开
    • Signal processing device
    • Signalverarbeitungsvorrichtung。
    • EP0483866A2
    • 1992-05-06
    • EP91118650.0
    • 1991-10-31
    • CANON KABUSHIKI KAISHA
    • Kawasaki, Somei, c/o CANON KABUSHIKI KAISHA
    • H04N1/46H04N9/65
    • H04N9/65H04N1/646H04N9/81
    • A signal processing device is arranged to form a first output modulated signal (V₀₁ ,V₀₂ ) by modulating an input information signal (Vin) in accordance with a modulation carrier signal (fsc), to form a second output modulated signal by modulating the first output modulated signal (V₀₁,V₀₂ ) in accordance with a modulation carrier signal (fsc) which is identical to the above-stated modulation carrier signal, and to correct the input information signal by using the second output modulated signal. The modulation circuit of the device is thus arranged to have a minimal amount of leakage of the modulation carrier signal for the information signal, so that the device can be easily arranged as an integrated circuit.
    • 信号处理装置被布置成通过根据调制载波信号调制输入信息信号来形成第一输出调制信号,以通过根据调制载波信号调制第一输出调制信号形成第二输出调制信号,该调制载波信号是 与上述调制载波信号相同,并且通过使用第二输出调制信号来校正输入信息信号。 因此,该装置的调制电路被布置为具有用于信息信号的调制载波信号的最小量的泄漏,使得该装置可以容易地布置为集成电路。