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    Document detecting apparatus, image forming apparatus and document detecting method
    41.
    发明授权
    Document detecting apparatus, image forming apparatus and document detecting method 有权
    文件检测装置，图像形成装置和文件检测方法

    公开(公告)号：US08988743B2

    公开(公告)日：2015-03-24

    申请号：US13270096

    申请日：2011-10-10

    Applicant: Sueo Ueno ,  Mitsuru Hatano ,  Katsuya Nagamochi ,  Hiroyuki Shiraishi ,  Yusuke Hashizume

    Inventor： Sueo Ueno ,  Mitsuru Hatano ,  Katsuya Nagamochi ,  Hiroyuki Shiraishi ,  Yusuke Hashizume

    IPC: H04N1/04 ,  H04N1/40 ,  H04N1/00

    CPC classification number: H04N1/00681 ,  H04N1/00694 ,  H04N1/00705 ,  H04N1/00755

    Abstract: According to one embodiment, a document detecting apparatus includes a light-emitting element, a photoelectric conversion element, a light-emission controller and a detection processor. The light-emitting element projects light onto a detection position of a document. The light-emitting element is not used for reading an image of the document. The photoelectric conversion element converts light projected onto the detection position into an electric signal and outputs the electric signal. The light-emission controller changes the light quantity of the light emitted by the light-emitting element during a predetermined interval. The detection processor detects the presence or absence of the document at the detection position of the document based on whether a value of the output electric signal during the predetermined interval changes in correspondence to the change of the light quantity caused by the light-emission controller.

    Abstract translation: 根据一个实施例，文件检测装置包括发光元件，光电转换元件，发光控制器和检测处理器。 发光元件将光投射到文件的检测位置。 发光元件不用于读取文档的图像。 光电转换元件将投射到检测位置的光转换为电信号并输出​​电信号。 发光控制器在预定间隔期间改变由发光元件发射的光的光量。 检测处理器基于在预定间隔期间的输出电信号的值是否与由发光控制器引起的光量的变化相对应地改变而在文档的检测位置处检测文档的存在或不存在。

    Image forming apparatus and image forming method
    47.
    发明申请
    Image forming apparatus and image forming method 有权
    图像形成装置及图像形成方法

    公开(公告)号：US20080252941A1

    公开(公告)日：2008-10-16

    申请号：US11786548

    申请日：2007-04-12

    Applicant: Yusuke Hashizume

    Inventor： Yusuke Hashizume

    IPC: H04N1/04

    CPC classification number: H04N1/401 ,  H04N1/0464 ,  H04N1/1013 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/044

    Abstract: An image forming apparatus to generate image data from an original document and to form an image includes a photoelectric conversion unit to sequentially convert an image of the original document scanned in a sub-scanning direction into image signals made of a plurality of pixels constituting one line in a main scanning direction, a white reference plate which is white reference for the image signals, a white reference signal generation unit to generate a white reference signal from image signals obtained by photoelectric converting an image for a given number of lines from a given read start position of the white reference plate in the sub-scanning direction by the photoelectric conversion unit, a shading correction unit to correct the image signals of the original document image photoelectric converted by the photoelectric conversion unit based on the white reference signal, and a read start position acquisition unit to calculate and acquire the read start position on the white reference plate, and the read start position acquisition unit includes a start position calculation unit to detect a portion of the white reference plate where brightness is within a given range and to calculate the read start position.

    Abstract translation: 一种用于从原始文档生成图像数据并形成图像的图像形成装置包括光电转换单元，其将在副扫描方向上扫描的原稿的图像顺序地转换成由构成一行的多个像素构成的图像信号 在主扫描方向上，作为图像信号的白色基准的白色基准板，白色参考信号生成单元，用于根据从给定读数对给定行数进行光电转换的图像信号生成白色参考信号 通过光电转换单元在副扫描方向上的白色参考板的开始位置，阴影校正单元，用于校正基于白色参考信号由光电转换单元光电转换的原始文档图像的图像信号，以及读取 起始位置获取单元计算并获取白色参考的读取开始位置 读取开始位置获取单元包括开始位置计算单元，用于检测亮度在给定范围内的白色参考板的一部分，并计算读取的开始位置。

    Image reading apparatus, image forming apparatus, and image forming method
    48.
    发明申请
    Image reading apparatus, image forming apparatus, and image forming method 失效
    图像读取装置，图像形成装置和图像形成方法

    公开(公告)号：US20070291331A1

    公开(公告)日：2007-12-20

    申请号：US11452757

    申请日：2006-06-14

    Applicant: Hidekazu Sekizawa ,  Akihiko Someya ,  Yusuke Hashizume

    Inventor： Hidekazu Sekizawa ,  Akihiko Someya ,  Yusuke Hashizume

    IPC: H04N1/46

    CPC classification number: H04N1/46 ,  H04N1/48

    Abstract: In an image reading apparatus for reading a color document as a monochrome image, an image forming apparatus of the invention includes a composite light source that irradiates the color document and includes plural light sources different in spectral distribution, a sensor to detect the intensity of a reflected light from the color document, a light emission ratio setting unit to changeably set light emission ratios different for the respective light sources, and a light source control unit to control effective light amounts of the plural light sources with the set light emission ratios. According to the image forming apparatus of the invention, when the color document is monochromatically read, the reading is performed with the brightness close to the human visual sensitivity, the user can changeably set color sensitivity, and uneven density can be reduced.

    Abstract translation: 在用于读取作为单色图像的彩色文档的图像读取装置中，本发明的图像形成装置包括：照射彩色文档并包括多个光谱分布不同的光源的复合光源，用于检测彩色原稿的强度的传感器 来自彩色原稿的反射光，用于可变地设定各光源的发光比的发光比设定单元，以及以设定的发光比来控制多个光源的有效光量的光源控制单元。 根据本发明的图像形成装置，当彩色文档被单色读取时，以接近人的视觉灵敏度的亮度执行读取，用户可以可变地设置色彩灵敏度，并且可以减小不均匀的浓度。

    Image forming apparatus, image forming method and image forming program
    49.
    发明申请
    Image forming apparatus, image forming method and image forming program 审中-公开
    图像形成装置，图像形成方法和图像形成程序

    公开(公告)号：US20050281568A1

    公开(公告)日：2005-12-22

    申请号：US10867764

    申请日：2004-06-16

    Applicant: Yusuke Hashizume

    Inventor： Yusuke Hashizume

    IPC: G03G15/01 ,  G03G15/08

    CPC classification number: G03G15/0147 ,  G03G15/0121 ,  G03G15/0152 ,  G03G15/0173 ,  G03G2215/0154 ,  G03G2215/0177 ,  G03G2215/0888

    Abstract: A multicolor image forming apparatus is provided which is capable of suppressing rotational vibrations caused by a rotary unit thereby to carry out the formation of images of excellent quality even if the amount of remaining toner in the rotary unit changes. In the multicolor image forming apparatus (10), accelerations, uniform speeds and decelerations, which do not cause residual vibration of the rotary unit due to overshooting when the rotary unit (11) is changed from its acceleration rotation to its uniform rotation or vice versa, are stored in an acceleration and acceleration storage section (16) in correspondence to the amounts of toners held by the developing units. A rotary unit rotation control section (17) detects the amounts of remaining toners of the developing units through a toner amount detection section at each timing when the rotary unit is driven to rotate for development, reads out an acceleration, a uniform speed and a deceleration corresponding to the detected amounts of remaining toners from the acceleration and deceleration storage section, and controls the rotational movement of the rotary unit according to the result thus read out. Accordingly, the rotary unit does not generate residual vibration upon switching of its rotation.

    Abstract translation: 提供一种多色图像形成装置，其能够抑制由旋转单元引起的旋转振动，从而即使旋转单元中的剩余调色剂的量发生变化，也能执行优质品质的图像的形成。 在多色图像形成装置（10）中，加速度，均匀速度和减速度，当旋转单元（11）从其加速旋转变为其均匀旋转时，不会由于过冲而导致旋转单元的残余振动，反之亦然 相应于由显影单元保持的调色剂的量存储在加速和加速存储部分（16）中。 旋转单元旋转控制部分（17）通过调色剂量检测部件在旋转单元被驱动以转动显影的每个定时检测显影单元的剩余调色剂量，读出加速度，均匀速度和减速度 对应于来自加速和减速存储部分的检测到的剩余调色剂量，并且根据由此读出的结果来控制旋转单元的旋转运动。 因此，旋转单元在其旋转切换时不产生残余振动。

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