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1. 发明授权

US11133119B2 Image reading apparatus 有权
公开(公告)号：US11133119B2
公开(公告)日：2021-09-28
申请号：US16380436
申请日：2019-04-10
申请人： CANON KABUSHIKI KAISHA
发明人： Daisuke Akagi
IPC分类号： H01B7/08 , G03G15/06 , G03G15/00 , H05K7/02 , H01B7/04
摘要： A flat cable includes a first region including a first conducting wire, a second region including a second conducting wire and divided from the first region by a slit provided between the first conducting wire and the second conducting wire, the first region and the second region being at least partially overlapped with each other when viewed in a thickness direction of the flat cable.

2. 发明申请

US20210243337A1 IMAGE READING APPARATUS WITH DETECTION OF ABNORMAL PIXELS 有权
公开(公告)号：US20210243337A1
公开(公告)日：2021-08-05
申请号：US17239581
申请日：2021-04-24
申请人： CANON KABUSHIKI KAISHA
发明人： Daisuke Akagi , Katsuhiro Ishido
IPC分类号： H04N1/62 , H04N1/028 , H04N1/40 , H04N1/409 , H04N1/00 , H04N1/10 , H04N1/193 , H04N1/48
摘要： An original image is read as an aggregate of a plurality of pixels in which adjacent pixels have different colors (R, G, and B) in a main scanning direction and in a sub-scanning direction, and the read pixels of the respective colors are stored in a line memory in association with information on relative positions of the pixels with respect to another pixel. Then, the stored pixels are sorted so that pixels having the same color are adjacent to each other, and an abnormal pixel (dust) not present in the original image is detected based on the state of the sorted pixels. With this, the dust not present in the original image is detected without increasing the cost, and the dust is corrected without forming a conspicuous trace of correction.

3. 发明授权

US10567621B2 Image reading apparatus 有权
公开(公告)号：US10567621B2
公开(公告)日：2020-02-18
申请号：US16201845
申请日：2018-11-27
申请人： CANON KABUSHIKI KAISHA
发明人： Daisuke Akagi , Katsuhiro Ishido
IPC分类号： H04N1/04 , H04N1/62 , H04N1/00 , H04N1/028 , H04N1/10 , H04N1/40 , H04N1/409 , H04N1/193 , H04N1/48
摘要： An original image is read as an aggregate of a plurality of pixels in which adjacent pixels have different colors (R, G, and B) in a main scanning direction and in a sub-scanning direction, and the read pixels of the respective colors are stored in a line memory in association with information on relative positions of the pixels with respect to another pixel. Then, the stored pixels are sorted so that pixels having the same color are adjacent to each other, and an abnormal pixel (dust) not present in the original image is detected based on the state of the sorted pixels. With this, the dust not present in the original image is detected without increasing the cost, and the dust is corrected without forming a conspicuous trace of correction.

4. 发明申请

US20170289386A1 LINE SENSOR, IMAGE READING DEVICE, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20170289386A1
公开(公告)日：2017-10-05
申请号：US15629599
申请日：2017-06-21
申请人： CANON KABUSHIKI KAISHA
发明人： Daisuke Akagi , Masanori Ogura , Jun Iba , Atsushi Furubayashi
IPC分类号： H04N1/04 , H04N1/191
CPC分类号： H04N1/0282 , G02B5/20 , H01L27/14 , H04N1/028 , H04N1/02895 , H04N1/03 , H04N1/191 , H04N9/07
摘要： In a line sensor including color filters that are periodically disposed in a light-receiving-element row, a problem called a “mixture of colors” occurs. A “mixture of colors” occurs when light that has been transmitted through a color filter differing from a color filter corresponding to a light receiving element is incident upon the light receiving element.In a CMOS sensor 107 including a light-receiving-element row in which a plurality of photodiodes 1204 are disposed side by side in a main scanning direction and a plurality of color filters 1202 that are disposed in correspondence with the plurality of photodiodes 1204, the center of each color filter 1202 is displaced in a direction of the center of the light-receiving-element row from the center of the photodiode 1204 corresponding to the color filter.

5. 发明申请

US20150062276A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20150062276A1
公开(公告)日：2015-03-05
申请号：US14467986
申请日：2014-08-25
申请人： Canon Kabushiki Kaisha
发明人： Daisuke Akagi
IPC分类号： B41J2/385
CPC分类号： G03G15/043 , G03G2215/0404
摘要： An image forming apparatus, including: a laser light source supplied with a bias current and a superimposed current to emit laser light; a splitting unit configured to split the laser light into first and second laser lights; a photoelectric conversion unit configured to output a voltage corresponding to a light intensity of the second laser light; a voltage holding unit configured to hold a voltage output from the photoelectric conversion unit with not the superimposed current but the bias current being supplied to the laser light source; a voltage conversion unit configured to remove the voltage held by the voltage holding unit from the voltage from the photoelectric conversion unit which receives the second laser light; and a current control unit configured to control, based on a voltage from the voltage conversion unit, a value of the superimposed current supplied to the laser light source based on image data.
摘要翻译：一种图像形成装置，包括：提供有偏置电流的激光光源和叠加的电流以发射激光; 分解单元，被配置为将激光分裂成第一和第二激光; 光电转换单元，被配置为输出与所述第二激光的光强度对应的电压; 电压保持单元，被配置为保持来自光电转换单元的电压不是叠加的电流，而是偏置电流被提供给激光源; 电压转换单元，被配置为从接收第二激光的光电转换单元的电压中去除由电压保持单元保持的电压; 以及电流控制单元，被配置为基于来自电压转换单元的电压，基于图像数据控制提供给激光光源的叠加电流的值。

6. 发明申请

US20140321490A1 LASER DRIVE DEVICE THAT DRIVES LASER DIODE, METHOD OF CONTROLLING THE SAME, AND STORAGE MEDIUM 有权
标题翻译：驱动激光二极管的激光驱动装置，控制激光二极管的方法和存储介质
公开(公告)号：US20140321490A1
公开(公告)日：2014-10-30
申请号：US14258059
申请日：2014-04-22
申请人： CANON KABUSHIKI KAISHA
发明人： Daisuke Akagi
IPC分类号： H01S5/06
CPC分类号： H01S5/4025 , H01S5/02212 , H01S5/06835
摘要： A laser drive device capable of easily reducing influence of bias light emission and thereby preventing variation in threshold current. A light amount of a laser beam emitted from a laser diode is detected by a photodiode. A drive current supplied to the laser diode is controlled according to the detected light amount to thereby control the amount of light emitted from the laser diode to a plurality of set light amounts. A threshold current is calculated according to the detected light amount and the drive current. The light amounts are changed and selected, and threshold currents calculated with respect to respective set light amounts are compared. A light amount corresponding to a difference in threshold current not less than a predetermined value is set as a set light amount for use in light amount control of the laser diode.
摘要翻译：一种激光驱动装置，其能够容易地减少偏置发光的影响，从而防止阈值电流的变化。通过光电二极管检测从激光二极管发射的光束的光量。根据检测到的光量来控制提供给激光二极管的驱动电流，从而将从激光二极管发射的光量控制为多个设定光量。根据检测到的光量和驱动电流来计算阈值电流。改变和选择光量，并且比较相对于各设定光量计算的阈值电流。将对应于不小于预定值的阈值电流差的光量设置为用于激光二极管的光量控制的设定光量。

7. 发明授权

US10602002B2 Image reading apparatus and image forming apparatus for detecting whether sheet is protruding from readable range 有权
公开(公告)号：US10602002B2
公开(公告)日：2020-03-24
申请号：US15919893
申请日：2018-03-13
申请人： CANON KABUSHIKI KAISHA
发明人： Daisuke Akagi
IPC分类号： H04N1/00 , G03G15/00 , H04N1/047
摘要： An image reading apparatus comprises a platen, a support, a reader, an open/close unit, a first obtainer, a mark, a positioning member, and a determiner. A position of the mark on a pressing surface of the cover, is provided at a position at which, in a case where a sheet of a maximum size among standard sizes that can entirely fit in a readable range of the reader is positioned with respect to the positioning member, at least a portion of the mark is not hidden by the sheet as viewed from the reader.

8. 发明申请

US20190326035A1 FLAT CABLE AND ELECTRONIC APPARATUS 审中-公开
公开(公告)号：US20190326035A1
公开(公告)日：2019-10-24
申请号：US16380436
申请日：2019-04-10
申请人： CANON KABUSHIKI KAISHA
发明人： Daisuke Akagi
IPC分类号： H01B7/08 , G03G15/06 , G03G15/00
摘要： A flat cable includes a first region including a first conducting wire, a second region including a second conducting wire and divided from the first region by a slit provided between the first conducting wire and the second conducting wire, the first region and the second region being at least partially overlapped with each other when viewed in a thickness direction of the flat cable.

9. 发明授权

US10412253B2 Line sensor, image reading device, and image forming apparatus 有权
公开(公告)号：US10412253B2
公开(公告)日：2019-09-10
申请号：US16036133
申请日：2018-07-16
申请人： CANON KABUSHIKI KAISHA
发明人： Daisuke Akagi , Masanori Ogura , Jun Iba , Atsushi Furubayashi
IPC分类号： H04N1/46 , H04N1/028 , G02B5/20 , H01L27/14 , H04N9/07 , H04N1/191 , H04N1/03
摘要： In a line sensor including color filters periodically disposed in a light-receiving-element row, a “mixture of colors” problem occurs when light that has been transmitted through a color filter differing from a color filter corresponding to a light receiving element is incident upon the light receiving element. To prevent the “mixture of colors” from occurring, in a CMOS sensor 107 including a light-receiving-element row in which a plurality of photodiodes 1204 are disposed side by side in a main scanning direction and a plurality of color filters 1202 that are disposed in correspondence with the plurality of photodiodes 1204, the center of each color filter 1202, other than the center color filter that corresponds to the center photodiode of the light-receiving-element row, is displaced in a direction toward the center of the light-receiving-element row from the center of the photodiode 1204 corresponding to the color filter.

10. 发明申请

US20170331984A1 IMAGE READING APPARATUS 审中-公开
公开(公告)号：US20170331984A1
公开(公告)日：2017-11-16
申请号：US15589327
申请日：2017-05-08
申请人： CANON KABUSHIKI KAISHA
发明人： Daisuke Akagi , Katsuhiro Ishido
IPC分类号： H04N1/62 , H04N1/48 , H04N1/40 , H04N1/00 , H04N1/028 , H04N1/10 , H04N1/193
CPC分类号： H04N1/62 , H04N1/00013 , H04N1/00023 , H04N1/00037 , H04N1/00084 , H04N1/028 , H04N1/02815 , H04N1/1017 , H04N1/1932 , H04N1/40 , H04N1/40093 , H04N1/4097 , H04N1/486 , H04N2201/0081
摘要： An original image is read as an aggregate of a plurality of pixels in which adjacent pixels have different colors (R, G, and B) in a main scanning direction and in a sub-scanning direction, and the read pixels of the respective colors are stored in a line memory in association with information on relative positions of the pixels with respect to another pixel. Then, the stored pixels are sorted so that pixels having the same color are adjacent to each other, and an abnormal pixel (dust) not present in the original image is detected based on the state of the sorted pixels. With this, the dust not present in the original image is detected without increasing the cost, and the dust is corrected without forming a conspicuous trace of correction.

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