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    • 38. 发明授权
    • Solid state image pickup apparatus for reducing noise
    • 用于降低噪声的固态图像拾取装置
    • US5737016A
    • 1998-04-07
    • US512017
    • 1995-08-07
    • Hayao OhzuToshiji SuzukiAkira IshizakiSeiji HashimotoTadanori HaradaTsuneo Suzuki
    • Hayao OhzuToshiji SuzukiAkira IshizakiSeiji HashimotoTadanori HaradaTsuneo Suzuki
    • H04N5/361H04N5/365H04N5/374H04N5/3745H04N5/378H04N5/335
    • H04N5/378H04N5/359H04N5/361H04N5/365H04N5/374
    • Solid state image pickup apparatus for removing noise includes a plurality of photoelectric transducer elements for converting incident light into electrical signals, each of the transducer elements having a signal fluctuation. Control circuitry is provided having a first mode for reading out from each transducer element a first signal corresponding to a signal component and a noise component caused by the fluctuation. The control circuitry has a second mode for reading out from each transducer element a second signal corresponding to the noise component caused by the fluctuation, the first and second signals being read out in the same manner from each transducer element. Amplification circuitry is provided for amplifying the first and second signals, the amplification circuitry including a plurality of amplifiers each amplifier being coupled to a respective one of the plurality of transducer elements. Processing circuitry is provided for processing the first and second signals from the plurality of transducer elements, said processing circuitry including a common capacitor having an input side selectably connected to receive the first signal and the second signal, the capacitor having an output side selectably connected to a fixed level and a floating level.
    • 用于去除噪声的固态图像拾取装置包括用于将入射光转换成电信号的多个光电换能器元件,每个换能器元件具有信号波动。 提供控制电路,其具有用于从每个换能器元件读出对应于由波动引起的信号分量和噪声分量的第一信号的第一模式。 控制电路具有从每个换能器元件读出对应于由波动引起的噪声分量的第二信号的第二模式,第一和第二信号以与每个换能器元件相同的方式读出。 提供放大电路用于放大第一和第二信号,放大电路包括多个放大器,每个放大器耦合到多个换能器元件中的相应一个。 提供处理电路用于处理来自多个换能器元件的第一和第二信号,所述处理电路包括公共电容器,该公共电容器具有可选择地连接以接收第一信号和第二信号的输入端,该电容器具有可选地连接到 固定水平和浮动水平。