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    • 6. 发明授权
    • Delay apparatus
    • 延迟装置
    • US5313438A
    • 1994-05-17
    • US78781
    • 1993-06-16
    • Teruo HiedaHidetoshi Wada
    • Teruo HiedaHidetoshi Wada
    • H04N9/64G11C27/04H03H11/26H03H15/02H04N5/14G11C13/00
    • G11C27/04H04N5/14
    • A delay apparatus comprises one or a plurality of shift registers, a plurality of signal accumulating capacitors which are mutually coupled by transfer transistors, a plurality of write switches each of which is arranged between an input terminal and either one of the capacitors and which are controlled by outputs of the shift registers, and a plurality of read switches which are arranged between the plurality of capacitors and an output terminal and are controlled by the outputs of the shift registers, wherein the signal charges accumulated in the one capacitor are capacitively divided into other capacitors through the transfer transistors for transferring the signal charges.
    • 延迟装置包括一个或多个移位寄存器,由传输晶体管相互耦合的多个信号累积电容器,多个写开关,每个写开关布置在输入端子和电容器中的任一个之间并被控制 通过移位寄存器的输出,以及多个读取开关,其布置在多个电容器和输出端子之间,并且由移位寄存器的输出控制,其中累积在一个电容器中的信号电荷被电容性地划分为另一个 电容通过传输晶体管传送信号电荷。
    • 8. 发明授权
    • Image sensing apparatus and method having noise reduction function
    • 具有降噪功能的图像感测装置和方法
    • US06803953B2
    • 2004-10-12
    • US09794472
    • 2001-02-27
    • Hidetoshi Wada
    • Hidetoshi Wada
    • H04N5217
    • H04N5/23258H04N5/217H04N5/23248H04N5/23267H04N9/045
    • In an image sensing apparatus which performs noise reduction processing using pixel signals obtained by consecutively scanning a CCD image sensor at different timings, for performing image expansion in the vertical direction by controlling scanning of the CCD image sensor, an area to be read in the CCD image sensor is set on the basis of an expansion ratio. Pixel signal which have undergone the noise reduction processing and stored in advance in a memory are read so that colors of corresponding pixel signals do not shift. The noise reduction processing is performed on the current pixel signals read from the set area using the pixel signals read from the memory. The noise-reduced pixel signals are stored in the memory, and used in the next noise reduction processing for pixel signals read from the CCD image sensor of the next period.
    • 在利用通过在不同时刻连续地扫描CCD图像传感器而获得的像素信号进行降噪处理的图像感测装置中,通过控制CCD图像传感器的扫描来进行垂直方向的图像扩展,在CCD中读取的区域 图像传感器基于膨胀比设定。 已经经历了降噪处理并预先存储在存储器中的像素信号被读取,使得对应的像素信号的颜色不发生偏移。 使用从存储器读取的像素信号对从设定区域读取的当前像素信号执行噪声降低处理。 噪声降低的像素信号被存储在存储器中,并且用于下一个从下一个周期的CCD图像传感器读取的像素信号的降噪处理。