Photoelectric conversion element, image reading device, and image forming apparatus
    72.
    发明授权
    Photoelectric conversion element, image reading device, and image forming apparatus 有权
    光电转换元件,图像读取装置和图像形成装置

    公开(公告)号:US09491327B2

    公开(公告)日:2016-11-08

    申请号:US14847038

    申请日:2015-09-08

    IPC分类号: H04N1/03

    摘要: A photoelectric conversion element comprises: a plurality of photodetectors that perform photoelectric conversion per pixel to output an analog image signal, and that are arranged on a straight line; and wirings that are formed on a wiring layer, and that are enabled to be used as at least one of a signal line used in a peripheral circuit of the photodetector, a power source, and a ground, wherein the photodetector is formed to have a first shaded region and a second shaded region in which light is shaded by the wirings that are positioned on the straight line sandwiching an opening, respectively, when light that has passed through the opening that opens being sandwiched by the wirings positioned on the straight line is incident perpendicularly on a light receiving surface of the photodetector.

    摘要翻译: 光电转换元件包括:多个光电检测器,每像素执行光电转换以输出模拟图像信号,并且布置在直线上; 以及形成在布线层上的布线,并且能够用作用于光电检测器,电源和地的外围电路中的信号线中的至少一个,其中光电检测器形成为具有 第一阴影区域和第二阴影区域,其中当通过被位于直线上的布线夹持的打开的开口的光分别是位于夹着开口的直线上的布线遮光时, 垂直于光电检测器的光接收表面入射。

    Solid-state image sensing device, image reading apparatus, and image forming apparatus
    73.
    发明授权
    Solid-state image sensing device, image reading apparatus, and image forming apparatus 有权
    固体摄像装置,图像读取装置,图像形成装置

    公开(公告)号:US09444967B2

    公开(公告)日:2016-09-13

    申请号:US14143127

    申请日:2013-12-30

    摘要: A solid-state image sensing device includes: a photoelectric conversion unit that converts light into electrical signals for respective pixels and outputs the electrical signals; a signal separation unit that separates an offset signal, which is generated due to dark current, from each of the electrical signals outputted by the photoelectric conversion unit and outputs image signals which are electrical signals converted from light for the respective pixels; and a signal adding unit that adds the image signals, which is outputted from the signal separation unit, for each group of a plurality of pixels.

    摘要翻译: 固体摄像装置包括:光电转换单元,其将光转换成各个像素的电信号并输出​​电信号; 信号分离单元,其从由所述光电转换单元输出的每个电信号分离由暗电流产生的偏移信号,并输出作为各个像素的光转换的电信号的图像信号; 以及信号添加单元,对于每个多个像素组,将从信号分离单元输出的图像信号相加。

    IMAGE SENSING DEVICE, IMAGE READING DEVICE, IMAGE FORMING APPARATUS AND IMAGE SENSING METHOD
    75.
    发明申请
    IMAGE SENSING DEVICE, IMAGE READING DEVICE, IMAGE FORMING APPARATUS AND IMAGE SENSING METHOD 有权
    图像感测装置,图像读取装置,图像形成装置和图像感测方法

    公开(公告)号:US20150163378A1

    公开(公告)日:2015-06-11

    申请号:US14555864

    申请日:2014-11-28

    摘要: An image sensing device includes a plurality of photoelectric conversion elements arranged in one direction for each color of received light, and an analog-digital (AD) convertor that performs analog-digital conversion for each pixel group configured by a plurality of photoelectric conversion elements selected from the photoelectric conversion elements. The AD converter is disposed in a position adjacent to each of the photoelectric conversion elements configuring the pixel group.

    摘要翻译: 一种图像感测装置包括针对每种接收光的颜色在一个方向上布置的多个光电转换元件,以及模拟数字(AD)转换器,其对由选择的多个光电转换元件配置的每个像素组执行模数转换 来自光电转换元件。 AD转换器设置在与构成像素组的每个光电转换元件相邻的位置。

    Image scanning device and image forming apparatus
    76.
    发明授权
    Image scanning device and image forming apparatus 有权
    图像扫描装置和图像形成装置

    公开(公告)号:US08908245B2

    公开(公告)日:2014-12-09

    申请号:US13912341

    申请日:2013-06-07

    申请人: Masamoto Nakazawa

    发明人: Masamoto Nakazawa

    CPC分类号: H04N1/407 H04N1/40056

    摘要: According to an embodiment, an image scanning device includes: a light source unit that emits light onto an original to be scanned; a photoelectric conversion unit that converts light from the original to an electric signal; a converting unit that converts the electric signal from the photoelectric conversion unit into digital image data; and a black correcting unit that performs black correction by correcting pixel-by-pixel black levels of pixels contained in pre-scanning digital image data obtained before the original is scanned based on a ratio of a dark-current black level of a pixel contained in ongoing-scanning digital image data obtained during scanning of the original to a dark-current black level of the pixel contained in the pre-scanning digital image data, and subtracting the corrected pixel-by-pixel black levels from the ongoing-scanning digital image data.

    摘要翻译: 根据一个实施例,图像扫描装置包括:光源单元,其将光发射到待扫描的原稿上; 将来自原稿的光转换为电信号的光电转换单元; 转换单元,其将来自光电转换单元的电信号转换为数字图像数据; 以及黑色校正单元,其通过基于包含在扫描原稿中的像素的暗电流黑电平的比例来校正在扫描原稿之前获得的预扫描数字图像数据中包含的像素的逐像素黑色电平来执行黑色校正 将原稿扫描期间获得的持续扫描数字图像数据包含在预扫描数字图像数据中的像素的暗电流黑电平,以及从正扫描数字图像中减去校正的逐像素黑电平 数据。

    Signal buffer circuit, sensor control board, image scanner, and image forming apparatus
    77.
    发明授权
    Signal buffer circuit, sensor control board, image scanner, and image forming apparatus 有权
    信号缓冲电路,传感器控制板,图像扫描器和图像形成装置

    公开(公告)号:US08749276B2

    公开(公告)日:2014-06-10

    申请号:US13251548

    申请日:2011-10-03

    申请人: Masamoto Nakazawa

    发明人: Masamoto Nakazawa

    IPC分类号: H03L5/00

    摘要: A signal buffer circuit includes a buffer to conduct a buffering operation for transmitting a signal to a subsequent unit; a resistor connected between an input side and an output side of the buffer; and a variable impedance device connected in series to the output side of the buffer. The variable impedance device is at low impedance when the buffer is conducting the buffering operation and at high impedance when the buffer is not conducting the buffering operation.

    摘要翻译: 信号缓冲电路包括缓冲器,用于进行用于将信号发送到后续单元的缓冲操作; 连接在缓冲器的输入侧和输出侧之间的电阻器; 以及与缓冲器的输出侧串联连接的可变阻抗器件。 当缓冲器进行缓冲操作并且当缓冲器不进行缓冲操作时,可变阻抗器件处于低阻抗。

    Image scanner, image forming apparatus, and sample hold control method
    78.
    发明授权
    Image scanner, image forming apparatus, and sample hold control method 有权
    图像扫描仪,图像形成装置和样品保持控制方法

    公开(公告)号:US08472091B2

    公开(公告)日:2013-06-25

    申请号:US12640646

    申请日:2009-12-17

    申请人: Masamoto Nakazawa

    发明人: Masamoto Nakazawa

    IPC分类号: H04N1/04

    摘要: A scanner includes: a photoelectric conversion element configured to photoelectrically convert light reflected from an original image to form an image signal; a timing generation circuit configured to generate a drive signal for the photoelectric conversion element; a drive circuit configured to drive the photoelectric conversion element; a signal processing circuit configured to subject a sample hold signal fed in through the drive circuit and the image signal to an A/D conversion; and a control circuit configured to turn on the sample hold signal when the scanner transitions to an “ON” state from an “OFF” state and turn off the sample hold signal when the scanner transitions to the “OFF” state from the “ON” state. The control circuit turns on and off the sample hold signal, based on each of input fed to the drive circuit and the signal processing circuit.

    摘要翻译: 扫描仪包括:光电转换元件,被配置为光电转换从原始图像反射的光以形成图像信号; 定时产生电路,被配置为产生用于所述光电转换元件的驱动信号; 配置为驱动所述光电转换元件的驱动电路; 信号处理电路,被配置为将通过驱动电路馈送的采样保持信号和图像信号进行A / D转换; 以及控制电路,被配置为当扫描仪从“OFF”状态转变到“ON”状态时接通采样保持信号,并且当扫描仪从“ON”转变到“OFF”状态时关闭采样保持信号, 州。 控制电路基于馈送到驱动电路和信号处理电路的每个输入端接通和关断采样保持信号。

    Image reading device and image forming apparatus
    79.
    发明授权
    Image reading device and image forming apparatus 有权
    图像读取装置和图像形成装置

    公开(公告)号:US08248669B2

    公开(公告)日:2012-08-21

    申请号:US12508906

    申请日:2009-07-24

    申请人: Masamoto Nakazawa

    发明人: Masamoto Nakazawa

    IPC分类号: H04N1/40

    CPC分类号: H04N5/3765 H04N5/3577

    摘要: An image reading device includes a charge-coupled device that generates and outputs an image signal, a timing generator that outputs a frequency-modulated clock, a modulation signal detector that detects a modulation signal being a signal corresponding to a change in frequency of the clock, an amplitude controller that controls an amplitude of the modulation signal, and a signal combining unit that superimposes the modulation signal after the amplitude is controlled on the image signal.

    摘要翻译: 图像读取装置包括产生并输出图像信号的电荷耦合器件,输出调频时钟的定时发生器,检测作为对应于时钟频率变化的信号的调制信号的调制信号检测器 控制调制信号的幅度的幅度控制器,以及在将幅度控制在图像信号上之后叠加调制信号的信号组合单元。

    ANALOG SIGNAL BUFFER AND IMAGE READING DEVICE USING THE ANALOG SIGNAL BUFFER
    80.
    发明申请
    ANALOG SIGNAL BUFFER AND IMAGE READING DEVICE USING THE ANALOG SIGNAL BUFFER 有权
    模拟信号缓冲器和使用模拟信号缓冲器的图像读取器件

    公开(公告)号:US20120008173A1

    公开(公告)日:2012-01-12

    申请号:US13150563

    申请日:2011-06-01

    IPC分类号: H04N1/32

    摘要: The analog signal buffer is connected with a photoelectric converter to convert an optical image to an analog signal and an analog signal processing circuit to convert the analog signal to a digital signal, and transmits the analog signal to the analog signal processing circuit. The analog signal buffer includes a first buffer having a NPN transistor; and a second buffer having a PNP transistor. The first buffer includes a circuit to block a reverse current caused in the analog signal buffer by dropping of a voltage output from the photoelectric converter.

    摘要翻译: 模拟信号缓冲器与光电转换器连接,将光学图像转换为模拟信号和模拟信号处理电路,将模拟信号转换为数字信号,并将模拟信号发送到模拟信号处理电路。 模拟信号缓冲器包括具有NPN晶体管的第一缓冲器; 以及具有PNP晶体管的第二缓冲器。 第一缓冲器包括一个电路,用于通过掉电从光电转换器输出的电压来阻止在模拟信号缓冲器中产生的反向电流。