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公开(公告)号：US20170126929A1
公开(公告)日：2017-05-04
申请号：US15334078
申请日：2016-10-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Toshitaka Noro , Hirotaka Seki , Katsuhiro Ishido
CPC classification number: H04N1/3878 , H04N1/00718 , H04N1/00748 , H04N1/00809 , H04N1/4092 , H04N2201/0094
Abstract: Provided is an image reading apparatus configured to recognize edge portions of an image of an original precisely without being influenced by the varying state of the four sides of the original. The image reading apparatus includes an image reading unit configured to read the original image by scanning the original, an edge determining unit configured to determine first edge locations at the left end and right end of the original image in a main scanning direction, an edge detector configured to detect a second edge location of the original image in a sub-scanning direction, a tilt expression calculator configured to calculate a linear expression that represents the amount of inclination of the original image with respect to the main scanning direction.
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公开(公告)号：US20170126913A1
公开(公告)日：2017-05-04
申请号：US15334086
申请日：2016-10-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hirotaka Seki
IPC: H04N1/00
CPC classification number: H04N1/00771 , H04N1/0057 , H04N1/00745 , H04N1/00748 , H04N1/00801 , H04N2201/0094
Abstract: An image reading apparatus capable of recognizing edge portions of an original image with precision is provided. The image reading apparatus uses an image reading unit to scan an original being conveyed and read an image of the original. The image reading apparatus includes an edge information obtaining unit and an edge determining unit. The edge information obtaining unit detects an image of an edge portion of the original image and obtains, for each point in a main scanning direction, edge information, which indicates whether or not an edge portion image is detected at the point in a sub-scanning direction. The edge determining unit conducts detection from at least one of two directions of the main scanning direction to detect a point where a given number of successive edge portion images are detected, and obtains an edge portion based on the detected point.
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公开(公告)号：US20150293350A1
公开(公告)日：2015-10-15
申请号：US14682850
申请日：2015-04-09
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazumi Sato , Hirotaka Seki , Takehiro Ishidate , Yuichiro Imai , Yasuaki Otoguro
IPC: B41J2/385
CPC classification number: G03G15/043 , G02B7/1821 , G02B26/121 , G02B26/127
Abstract: An image forming apparatus including: a photosensitive member; a charging unit; a light scanning apparatus configured to emit a light beam to scan the photosensitive member to form a latent image; and a developing unit configure to develop the latent image. The light scanning apparatus includes a light source, a rotary polygon mirror, a light receiving unit, and a signal generating unit. An incident timing when the light beam deflected by the polygon mirror enters the light receiving unit after the photosensitive member is charged by the charging unit and after a voltage is applied to a toner carrying member by the developing unit is identified based on the number of second signals generated by the signal generating unit between the first signal and the first signal generated by the light receiving unit before the photosensitive member is charged and before the voltage is applied to the toner carrying member.
Abstract translation: 一种图像形成装置，包括：感光构件; 充电单元; 光扫描装置，被配置为发射光束以扫描所述感光构件以形成潜像; 以及显影单元，其配置为显影潜像。 光扫描装置包括光源，旋转多面镜，光接收单元和信号发生单元。 当由多面反射镜偏转的光束在由感光元件被充电单元充电之后并且在由显影单元施加到调色剂承载构件上的电压之后，基于第二个 信号产生单元在感光构件充电之前和在将电压施加到调色剂承载构件之前由第一信号和由光接收单元产生的第一信号之间产生的信号。
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公开(公告)号：US11868071B2
公开(公告)日：2024-01-09
申请号：US17988823
申请日：2022-11-17
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hirotaka Seki
CPC classification number: G03G15/5041 , G03G15/234 , G03G15/5058 , G03G15/5062
Abstract: An image forming apparatus includes an image forming unit configured to form an image on a sheet based on image forming condition, a reader configured to convey the sheet and read a test image on the sheet while the sheet is conveyed, and a controller configured to control the image forming unit to form the image and the test image on a same sheet, control the reader to read the test image on the same sheet, and generate the image forming condition for adjusting a density of an image to be formed by the image forming unit, based on a reading result of the test image by the reader.
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公开(公告)号：US20230119179A1
公开(公告)日：2023-04-20
申请号：US17942225
申请日：2022-09-12
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hirotaka Seki
IPC: G01S17/04
Abstract: An inspection system comprises a plurality of image capturing systems including a first image capturing unit, a first irradiation unit corresponding to the first image capturing unit, a second irradiation unit that does not correspond to the first image capturing unit but corresponds to a second image capturing unit and in which the irradiated terahertz waves are directly incident to the first image capturing unit, and a control unit that controls the plurality of image capturing systems such that the timing of a period of image capturing of the first image capturing unit and the timing of a period of irradiation of the terahertz waves of the second irradiation unit is different.
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Patent Agency Ranking
公开(公告)号：US20220244657A1
公开(公告)日：2022-08-04
申请号：US17586636
申请日：2022-01-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryo Mikami , Hirotaka Seki , Takeyuki Suda , Shinichi Isozaki
Abstract: There is provided a reading apparatus that includes a conveyance roller, a light source, a light transmission member, a line sensor having a plurality of pixels and configured to receive reflected light from a sheet via the light transmission member while the sheet is conveyed by the conveyance roller, and a controller. The controller is configured to perform acquiring an output value of a first pixel, an output value of a second pixel, and an output value of a third pixel, determine a first value based on the output value of the second pixel and a first coefficient, determine a second value based on the output value of the third pixel and a second coefficient, and determine read data based on the output value of the first pixel, the first value, and the second value. The first coefficient is larger than the second coefficient.
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公开(公告)号：US20220019166A1
公开(公告)日：2022-01-20
申请号：US17375172
申请日：2021-07-14
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hirotaka Seki
IPC: G03G15/00
Abstract: An image forming apparatus includes: an image forming unit configured to form an image on a sheet based on image forming condition; a reader configured to convey the sheet, and read a test image on the sheet while the sheet is conveyed; and a controller configured to: control the image forming unit to form the image and the test image on a same sheet; control the reader to read the test image on the same sheet; and generate the image forming condition for adjusting an density of an image to be formed by the image forming unit, based on a reading result of the test image by the reader.
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公开(公告)号：US20210103231A1
公开(公告)日：2021-04-08
申请号：US17124120
申请日：2020-12-16
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hirotaka Seki
IPC: G03G15/04
Abstract: An image forming apparatus includes an exposure head having an odd number of chips in each of which a plurality of light emitting elements configured to expose a photosensitive member are arrayed at intervals corresponding to a first resolution in an intersecting direction intersecting with a rotation direction of the photosensitive member. An even number of chips of the odd number of chips are arranged on one side of the printed circuit board in the rotation direction, and a remaining odd number of chips of the odd number of chips are arranged on another side of the printed circuit board. A center of an intensity of a light amount of the odd number of chips in the rotation direction is shifted to a side of the even number of chips with respect to a center of the printed circuit board in the rotation direction.
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9.发明授权Information processing system, information processing method, and storage medium 有权信息处理系统，信息处理方法和存储介质公开(公告)号：US08804179B2
公开(公告)日：2014-08-12
申请号：US13946786
申请日：2013-07-19
Applicant: Canon Kabushiki Kaisha
Inventor： Hirotaka Seki
CPC classification number: G06F3/1296 , G06F12/06 , H04N1/32593
Abstract: The information processing system includes an arithmetic processing unit, a master control unit including a master memory, and slave control units each including a slave memory. The master control unit stores in a master memory transmission data including address information that can designate the address of any one of the master memory and the slave memory, which is sent from the arithmetic processing unit, or transmits the transmission data to the corresponding slave memory via a communication data memory. Such the information processing system can reduce the number of times of directions from the master control unit to the slave control unit.
Abstract translation: 信息处理系统包括算术处理单元，包括主存储器的主控制单元和各自包括从存储器的从控制单元。 主控制单元存储主存储器发送数据，其包括可以指定从运算处理单元发送的主存储器和从存储器中的任一个的地址的地址信息，或者将发送数据发送到对应的从存储器 通过通信数据存储器。 这样的信息处理系统可以减少从主控制单元到从控制单元的方向次数。
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公开(公告)号：US12147169B2
公开(公告)日：2024-11-19
申请号：US18168076
申请日：2023-02-13
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hirotaka Seki , Koichiro Nakanishi
Abstract: An exposure apparatus comprises an exposure head, a memory and at least one processor. The exposure head includes light-emitting elements, and a rod lens array. A photosensitive body is rotationally driven. The light-emitting elements are arranged in a direction intersecting a direction of rotation of the photosensitive body. The rod lens array forms an image of light on the photosensitive body. The light is outputted from any of the light-emitting elements based on image data, passes through the rod lens array and reaches the photosensitive body. The memory stores correction data for correcting a streak image. The at least one processor corrects the image data based on the correction data read out from the memory.
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