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1. 发明申请

US20220303417A1 IMAGE READING DEVICE, IMAGE FORMING APPARATUS, AND IMAGE READING METHOD 有权
公开(公告)号：US20220303417A1
公开(公告)日：2022-09-22
申请号：US17695838
申请日：2022-03-16
申请人： Hideki HASHIMOTO , Daisuke NIKAKU , Yutaka OHMIYA
发明人： Hideki HASHIMOTO , Daisuke NIKAKU , Yutaka OHMIYA
IPC分类号： H04N1/00 , H04N1/12
摘要： An image reading device includes a reading unit, a background member, and processing circuitry. The reading unit includes alight source to emit light to a passage area through which an object passes and an imaging device to capture reflected light of the light emitted to generate a visible image and an invisible image. The background member is disposed opposite the light source across the passage area. The processing circuitry is configured to: detect a change in an image characteristic due to a change in an optical characteristic of the reading unit, in invisible images obtained by capturing of invisible marks on the background member; determine a correction amount of an image characteristic to be used for correcting an image of the object generated by the imaging device, based on the change in the image characteristic detected; and correct the image characteristic based on the correction amount determined.

2. 发明申请

US20220109779A1 READING DEVICE, IMAGE FORMING APPARATUS, AND CORRECTION METHOD 有权
公开(公告)号：US20220109779A1
公开(公告)日：2022-04-07
申请号：US17489869
申请日：2021-09-30
申请人： Hideki HASHIMOTO , Masamoto NAKAZAWA , Daisuke NIKAKU , Yutaka OHMIYA
发明人： Hideki HASHIMOTO , Masamoto NAKAZAWA , Daisuke NIKAKU , Yutaka OHMIYA
IPC分类号： H04N1/60 , H04N1/00
摘要： A reading device, an image forming apparatus, and a method of correction. The reading device includes a scanner configured to read an image in a first wavelength range and an image in a second wavelength range from light reflected by a surface of a recording medium, a detector configured to detect a change from a reference position in a reading-depth direction when the surface of the recording medium is read by the scanner, based on an amount of characteristic read from the image in the second wavelength range, and a corrector configured to correct the image in the first wavelength range based on the change detected by the detector. The image forming apparatus includes the reading device, and an image forming device configured to form an image corrected by the corrector of the reading device on a recording medium. The method includes reading the image in the first wavelength.

3. 发明申请

US20210385384A1 POSITION DETECTION DEVICE, IMAGE FORMING APPARATUS, AND POSITION DETECTION METHOD 有权
公开(公告)号：US20210385384A1
公开(公告)日：2021-12-09
申请号：US17340121
申请日：2021-06-07
申请人： Yutaka OHMIYA , Daisuke NIKAKU , Hideki HASHIMOTO
发明人： Yutaka OHMIYA , Daisuke NIKAKU , Hideki HASHIMOTO
IPC分类号： H04N5/232 , H04N5/357
摘要： A position detection device includes a background member, a reader, and processing circuitry. The background member has a higher absorption characteristic in an invisible wavelength region than in a visible wavelength region. The reader opposite the background member irradiates a recording medium having a mark and the background member with light of a visible wavelength to output a visible image or with light of an invisible wavelength to output an invisible image. The processing circuitry is configured to: detect an end position of the recording medium and a position of the mark on the recording medium from a read image output from the reader; and select the visible or invisible image as the read image used for position detection, according to an absorption characteristic of a color material forming the mark read by the reader and an absorption characteristic of the recording medium in the invisible wavelength region.

4. 发明申请

US20210218860A1 IMAGE READING DEVICE, IMAGE READING METHOD, AND COMPUTER- READABLE MEDIUM 有权
公开(公告)号：US20210218860A1
公开(公告)日：2021-07-15
申请号：US17141240
申请日：2021-01-05
申请人： Daisuke NIKAKU , Tatsuya ISHII , Hideki HASHIMOTO , Yutaka OHMIYA , Takayuki KAWAMOTO
发明人： Daisuke NIKAKU , Tatsuya ISHII , Hideki HASHIMOTO , Yutaka OHMIYA , Takayuki KAWAMOTO
IPC分类号： H04N1/028 , H04N1/00
摘要： An image reading device includes a light source configured to irradiate a subject; a reading unit configured to detect reflected light generated by a subject reflecting light emitted from the light source, to perform reading; and a control unit configured to perform turn-on control on the light source. The control unit is configured to perform the turn-on control to change a turn-on condition such that the light source is turned on during a period when at least a detection region including an image pattern on the subject passes through a reading position of a reading unit, based on position information of the image pattern of the subject in a first operation mode for reading the subject, and perform the turn-on control to make the turn-on condition of the light source constant regardless of the image pattern of the subject in a second operation mode for reading the subject.

5. 发明申请

US20190238717A1 IMAGE READER, IMAGE FORMING APPARATUS, AND DENSITY CORRECTING METHOD 审中-公开
公开(公告)号：US20190238717A1
公开(公告)日：2019-08-01
申请号：US16256212
申请日：2019-01-24
申请人： Osamu INAGE , Masamoto NAKAZAWA , Daisuke NIKAKU , Ryohma IKEMOTO , Hideki HASHIMOTO , Shinichiroh WADA
发明人： Osamu INAGE , Masamoto NAKAZAWA , Daisuke NIKAKU , Ryohma IKEMOTO , Hideki HASHIMOTO , Shinichiroh WADA
IPC分类号： H04N1/407 , G03G15/22 , H04N1/00
摘要： An image reader includes a reading device to read an image on a recording medium, a first conveying roller pair upstream of the reading device in a conveyance direction of the recording medium, a second conveying roller pair downstream of the reading device in the conveyance direction, to hold the recording medium together with the first conveying roller pair to convey the recording medium, and a driver to drive the first conveying roller pair and the second conveying roller pair so that a relative relation between a reading position of the reading device and the recording medium held by the first conveying roller pair and the second conveying roller pair is constant. The reading device determines that the image read from the recording medium is effective in a period in which the relative relation is constant.

6. 发明申请

US20130044338A1 IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS 有权
标题翻译：图像读取装置和图像形成装置
公开(公告)号：US20130044338A1
公开(公告)日：2013-02-21
申请号：US13562588
申请日：2012-07-31
申请人： Daisuke NIKAKU
发明人： Daisuke NIKAKU
IPC分类号： H04N1/04 , G06K15/02 , H04N1/46
CPC分类号： H04N1/00013 , H04N1/00031 , H04N1/00045 , H04N1/0005 , H04N1/00063 , H04N1/00087 , H04N1/4076 , H04N2201/0081
摘要： An image reading apparatus include a light source; an image sensor configured to output an image signal of an object illuminated by the light source; a first calculating unit configured to calculate a third light amount based on a difference between a first image signal output from the image sensor when the light source illuminates a reference member as the object at a first light quantity and a second image signal output from the image sensor when the light source illuminates the reference member at a second light quantity and a difference between the first light quantity and the second light quantity; and a light quantity setting unit configured to set a light quantity at which the light source illuminates a document as the object to the third light quantity.
摘要翻译：图像读取装置包括光源; 图像传感器，被配置为输出由所述光源照射的物体的图像信号; 第一计算单元，被配置为基于当光源照射作为第一光量的对象的参考构件时从图像传感器输出的第一图像信号与从图像输出的第二图像信号之间的差计算第三光量; 当光源以第二光量照射参考构件和第一光量与第二光量之间的差时，传感器; 以及光量设定单元，被配置为将光源照亮作为所述对象的文档的光量设定为所述第三光量。

7. 发明申请

US20140078532A1 DOCUMENT READING DEVICE, IMAGE FORMING APPARATUS, DOCUMENT READING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM 有权
标题翻译：文件读取装置，图像形成装置，文件读取方法和计算机可读存储介质
公开(公告)号：US20140078532A1
公开(公告)日：2014-03-20
申请号：US13970981
申请日：2013-08-20
申请人： Daisuke NIKAKU
发明人： Daisuke NIKAKU
IPC分类号： H04N1/401
CPC分类号： H04N1/401 , G03G15/00 , G03G15/60 , G03G2215/00189 , G03G2215/0129 , H04N1/00 , H04N1/00814 , H04N1/1061
摘要： An image reading device includes a document reading unit configured to guide light emitted from a light source to a photoelectric conversion unit to read an image on the document; a driving unit configured to drive the document reading unit so that the document reading unit reciprocates along the document; a reading position obtaining unit configured to obtain a home position at which the document reading unit is in a stopped state when starting a read operation; a dark time data obtaining unit configured to obtain dark time output data of the photoelectric conversion unit while the light source is turned off; and a read control unit configured to perform control for causing the driving unit to return the document reading unit to the home position and entering a document read operation to read a document image after the dark time data obtaining unit obtains the dark time output data.
摘要翻译：一种图像读取装置，包括文件读取单元，被配置为将从光源发射的光引导到光电转换单元以读取文档上的图像; 驱动单元，被配置为驱动所述文档读取单元，使得所述文档读取单元沿着所述文档往复运动; 读取位置获取单元，被配置为当开始读取操作时获得文档读取单元处于停止状态的原始位置; 黑暗时间数据获取单元，被配置为在光源关闭时获得光电转换单元的暗时输出数据; 以及读取控制单元，被配置为执行控制，以使得所述驱动单元在所述黑暗时间数据获取单元获得暗时间输出数据之后将所述文档读取单元返回到所述原始位置并输入文档读取操作以读取文档图像。

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