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    • 5. 发明授权
    • Photoelectric conversion apparatus
    • 光电转换装置
    • US4965570A
    • 1990-10-23
    • US388713
    • 1989-08-02
    • Katsunori HatanakaShunichi UzawaKatsumi NakagawaToshiyuki Komatsu
    • Katsunori HatanakaShunichi UzawaKatsumi NakagawaToshiyuki Komatsu
    • H04N1/40H04N3/15
    • H04N1/40056H04N3/1575
    • A photoelectric conversion apparatus has a plurallity of photoelectric conversion elements each providing an output signal to a storage capacitor. A matrix wiring unit is arranged opposite the photoelectric conversion elements so as not to cross the signal lines extending from the capacitors. The matrix wiring unit matrix transfers the signals from the capacitors. A switch array unit includes a first switch unit for sequentially transferring the matrix transferred signals, and a first readout device for reading out, as a voltage signal, the signals transferred by the first switch section. The switch array also includes a second switch unit arranged in correspondence with the first switch unit and operated synchronously therewith. The second switch unit receives signals corresponding to noise. A second readout device reads out, as a voltage signal, the output from the second switch unit. A differential amplifier is included for receiving the outputs from the first and second readout devices and outputs a signal corresponding to a difference therebetween.
    • 光电转换装置具有多个光电转换元件,每个光电转换元件向存储电容器提供输出信号。 矩阵布线单元布置成与光电转换元件相对,以便不与从电容器延伸的信号线交叉。 矩阵布线单元矩阵传送来自电容器的信号。 开关阵列单元包括用于顺序传送矩阵传送信号的第一开关单元和用于读出由第一开关部分传送的信号作为电压信号的第一读出装置。 开关阵列还包括与第一开关单元对应地布置并与其同步操作的第二开关单元。 第二开关单元接收对应于噪声的信号。 第二读出装置从第二开关单元读出作为电压信号的输出。 包括差分放大器,用于接收来自第一和第二读出装置的输出,并输出对应于它们之间的差值的信号。