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    • 11. 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。
    • 15. 发明授权
    • Arithmetic processing apparatus and arithmetic processing circuit
    • 算术处理装置和算术处理电路
    • US5864495A
    • 1999-01-26
    • US591343
    • 1996-01-25
    • Yukihiko SakashitaHayao OhzuAkihiro Ouchi
    • Yukihiko SakashitaHayao OhzuAkihiro Ouchi
    • H03M1/38G06J1/00H03K5/08H03K19/0948H03M1/42H03M1/80G06G7/00
    • H03M1/42G06J1/00H03M1/804
    • An arithmetic processing apparatus or circuit for performing charge redistribution by one or more capacitances connected to an input portion of each comparator are realized with improved arithmetic accuracy as suppressing dispersion and errors of gains of signals input into comparators, in such an arrangement that as the arithmetic processing apparatus is arranged to have a plurality of comparators, each having one or more capacitances connected to the input portion thereof, a sum of the capacitors connected to the input portions of each comparators 71 (or 72), C.sub.11 +. . .+C.sub.1n (or C.sub.81 +. . .+C.sub.8m), is substantially equalized among the plurality of comparators, or a ratio of the sum of the capacitors connected to the input portion of each comparator 71 (or 72), C.sub.11 +. . .+C.sub.1n (or C.sub.81 +. . .+C.sub.8m), and input capacitance C.sub.p1 (or C.sub.p2) of the comparator is substantially equalized among the comparators.
    • 通过提高运算精度来实现用于通过连接到每个比较器的输入部分的一个或多个电容进行电荷重新分配的运算处理装置或电路,以抑制输入到比较器中的信号的增益的色散和误差, 处理装置被布置为具有多个比较器,每个比较器具有连接到其输入部分的一个或多个电容,连接到每个比较器71(或72)的输入部分C11 +的电容器的总和。 。 + C1n(或C81 + ... + C8m)在多个比较器中基本相等,或者连接到每个比较器71(或72)的输入部分的电容器C11 +之和的比率。 。 + C1n(或C81 + ... + C8m)和比较器的输入电容Cp1(或Cp2)在比较器之间基本相等。
    • 19. 发明授权
    • Solid state image pickup apparatus
    • 固态摄像装置
    • US06747699B2
    • 2004-06-08
    • US09040275
    • 1998-03-18
    • Hayao OhzuToshiji SuzukiAkira IshizakiSeiji HashimotoTadanori HaradaTsuneo Suzuki
    • Hayao OhzuToshiji SuzukiAkira IshizakiSeiji HashimotoTadanori HaradaTsuneo Suzuki
    • H04N314
    • H04N5/361H04N5/359H04N5/3591H04N5/3653H04N5/374H04N5/378
    • A solid state image pickup device includes light-receiving circuitry having a plurality of light-receiving cells arranged in a matrix. Apparatus is provided for reading and storing electrical signals output by the light-receiving circuitry, and includes (1) a first memory for reading bright signals out of the light-receiving cells arranged in a row for storing the bright signals for a horizontal scanning period, (2) a second memory for reading dark signals out of the light-receiving cells arranged in the row for storing the dark signal for the horizontal scanning period, and (3) a readout circuit for reading the bright and dark signals stored in the first and second memories simultaneously. A removing circuit is provided for removing fixed pattern noise by simultaneously processing the bright and dark current signals read out from the first and second memories. Preferably, this removing circuit comprises a differential amplifier. Also, the light receiving cells and the reading and storing apparatus are preferably provided on a single semiconductor substrate.
    • 固态图像拾取装置包括具有以矩阵形式布置的多个光接收单元的光接收电路。 提供了用于读取和存储由光接收电路输出的电信号的装置,并且包括:(1)第一存储器,用于从布置在一行中的光接收单元读出亮信号,用于存储水平扫描周期中的亮信号 ,(2)第二存储器,用于从布置在该行中的用于存储用于水平扫描周期的暗信号的行中的光接收单元读出暗信号,以及(3)读出电路,用于读取存储在水平扫描周期中的明暗信号 第一和第二存储器同时。 提供去除电路,用于通过同时处理从第一和第二存储器读出的亮和暗电流信号来消除固定图案噪声。 优选地,该去除电路包括差分放大器。 此外,光接收单元和读取存储装置优选地设置在单个半导体基板上。