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公开(公告)号：US11652946B2
公开(公告)日：2023-05-16
申请号：US17377011
申请日：2021-07-15
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takayuki Mashimo
IPC: H04N1/028 , G03G15/043 , G02B26/12 , H04N1/024
CPC classification number: H04N1/0283 , G02B26/122 , G03G15/043 , H04N1/024 , H04N1/02895
Abstract: An optical scanning device includes a light source, a deflector, a random number generator, a selection part, a random number assignment part and an exposure control part. The light source includes a plurality of light emitting parts arranged in a predetermined direction at fixed intervals in a sub-scanning direction. The random number assignment part is configured to assign a random number sequence to each light emitting part constituting a set of target light emitting parts as an index for specifying a timing at which a light emitting time of the set of target light emitting parts is set to a correction value different from a reference value and to update the assignment of the random number sequence at a random number update period. The random number update period coincides with a scanning period of each light emitting part constituting the set of target light emitting parts.
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公开(公告)号：US10514648B2
公开(公告)日：2019-12-24
申请号：US16123153
申请日：2018-09-06
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo , Hiroki Tanaka , Takayuki Mashimo
Abstract: An exposure device irradiates a photoconductor with light on the basis of an exposure signal and thereby forms an electrostatic latent image. A toner amount calculating unit (a) determines a distribution pattern of the electrostatic latent image on the basis of the exposure signal, (b) determines an electric field variation level of a target pixel, (c) determines an electric field intensity of the target pixel on the basis of a value of the target pixel in the distribution pattern and the electric field variation level, and (d) determines a toner consumption amount corresponding to the electric field intensity. Further, using spatial filters independently of each other in a primary scanning direction and in a secondary scanning direction, the toner amount calculating unit determines the electric field variation level on the basis of (a) the distribution pattern or (b) the exposure signal.
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公开(公告)号：US20190079442A1
公开(公告)日：2019-03-14
申请号：US16123204
申请日：2018-09-06
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo , Hiroki Tanaka , Takayuki Mashimo
CPC classification number: G03G15/556 , G03G15/04072 , G03G15/0865 , G03G15/16 , G03G15/50 , G03G15/5041 , G03G15/5054
Abstract: A base toner amount is determined without taking edge effect into account, and corresponds to a pixel value of image data for which gradation correction has not been performed. For the base toner amount, a first spatial filter process is performed corresponding to a laser profile of the exposure device. A second spatial filter process is performed for the base toner amount before or after the first spatial filter process and thereby an edge emphasis amount is determined corresponding to the edge effect. A limiter processing unit limits the edge emphasis amount to an uppermost value or less, and the uppermost value corresponds to the base toner amount after the first spatial filter process. A toner counter counts as a toner consumption amount a sum of the base toner amount after the first spatial filter process and the edge emphasis amount.
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公开(公告)号：US20190079439A1
公开(公告)日：2019-03-14
申请号：US16123102
申请日：2018-09-06
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo , Hiroki Tanaka , Takayuki Mashimo
Abstract: An exposure device irradiates a photoconductor with light on the basis of an exposure signal and thereby forms an electrostatic latent image. A toner amount calculating unit (a) determines a distribution pattern of the electrostatic latent image on the basis of the exposure signal, (b) determines an electric field variation level of a target pixel, (c) determines an electric field intensity of the target pixel on the basis of a value of the target pixel in the distribution pattern and the electric field variation level, and (d) determines a toner consumption amount corresponding to the electric field intensity. Further, the toner amount calculating unit limits the electric field variation level to an uppermost value or less, the uppermost value corresponding to a value of the target pixel in the distribution pattern of the electrostatic latent image.
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公开(公告)号：US10409210B2
公开(公告)日：2019-09-10
申请号：US16123173
申请日：2018-09-06
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo , Hiroki Tanaka , Takayuki Mashimo
Abstract: An edge emphasis amount determining unit performs a spatial filter process and thereby determines an edge emphasis amount corresponding to edge effect. A first toner counter (a) counts a toner consumption amount including the edge emphasis amount for a non-block-edge pixel in a block as a unit of image processing, and (b) counts a toner consumption amount not including the edge emphasis amount for a block edge pixel in the block. A second toner counter counts a toner consumption amount not including the edge emphasis amount for the non-block-edge pixel and the block edge pixel. A toner consumption amount calculating unit calculates a toner consumption amount of the block on the basis of a difference between a toner counting value of the first toner counter and a toner counting value of the second toner counter.
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Patent Agency Ranking
公开(公告)号：US10295947B2
公开(公告)日：2019-05-21
申请号：US16123102
申请日：2018-09-06
Applicant: KYOCERA Document Solutions Inc.
Inventor： Toshiaki Mutsuo , Hiroki Tanaka , Takayuki Mashimo
Abstract: An exposure device irradiates a photoconductor with light on the basis of an exposure signal and thereby forms an electrostatic latent image. A toner amount calculating unit (a) determines a distribution pattern of the electrostatic latent image on the basis of the exposure signal, (b) determines an electric field variation level of a target pixel, (c) determines an electric field intensity of the target pixel on the basis of a value of the target pixel in the distribution pattern and the electric field variation level, and (d) determines a toner consumption amount corresponding to the electric field intensity. Further, the toner amount calculating unit limits the electric field variation level to an uppermost value or less, the uppermost value corresponding to a value of the target pixel in the distribution pattern of the electrostatic latent image.
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7.发明申请公开(公告)号：US20180334345A1
公开(公告)日：2018-11-22
申请号：US15981583
申请日：2018-05-16
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takayuki Mashimo , Toshiaki Mutsuo
CPC classification number: B65H9/002 , B41J11/0095 , B41J13/0009 , B65H3/32 , B65H5/062 , B65H7/14 , B65H7/20 , B65H2404/14 , B65H2408/10 , B65H2511/10 , B65H2513/10 , B65H2513/50 , B65H2553/40 , B65H2557/10 , B65H2601/26 , B65H2801/15 , G03G15/5029 , G03G15/6529 , G03G2215/00746
Abstract: A sheet conveyance device includes a shape detecting portion, and a switch control portion. The shape detecting portion detects a shape of a sheet at a detection position between a first conveyance member and a second conveyance member. The switch control portion, when a front end of the sheet has passed a arrangement position at which the first conveyance member is arranged, switches an detection interval at which the shape of the sheet is detected by the shape detecting portion, to a first interval that corresponds to a rotation speed of the first conveyance member, and when a rear end of the sheet has passed the arrangement position, switches the detection interval to a second interval that corresponds to the rotation speed of the second conveyance member.
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公开(公告)号：US09773425B2
公开(公告)日：2017-09-26
申请号：US15283153
申请日：2016-09-30
Applicant: KYOCERA Document Solutions Inc.
Inventor： Akira Shimada , Takayuki Mashimo , Toshihiko Tanaka , Takashi Harada , Nobuto Fujita , Masaaki Nishihara , Hikaru Miyaji , Yukio Shibata
CPC classification number: G09B7/04 , G06F17/30253 , G06F17/30705 , G06K9/00442 , G06K9/00469 , G06K9/4604 , G06K2209/01 , H04N1/00795 , H04N2201/0094
Abstract: Provided is a choice question creating apparatus creating a choice question on a question document.It includes an image reading part reading a question document to acquire image data; a character recognizing part executing recognition on image data, acquiring document text data; a sentence extraction part extracting from document text data; a correct answer identifying part identifying word as correct answer from sentence; a word dictionary database in which words are classified into categories and registered; a choice creating part selecting specific number of words from category in word dictionary database including correct answer, and arranges words selected, and word as correct answer identified by correct answer identifying part to create choice group; a question sentence transforming part deleting correct answer from sentence to transform it into question sentence, and a layout part arranging transformed question sentence, and created choice group to create a choice question.
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公开(公告)号：US12038708B2
公开(公告)日：2024-07-16
申请号：US18323619
申请日：2023-05-25
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takayuki Mashimo
CPC classification number: G03G15/50 , G03G15/0142 , G06K15/1219 , G06K15/129
Abstract: Plural write control units independently control plural print mechanisms corresponding to plural toner colors. A controller stores a setting value for each page into a first memory area. Plural second memory areas respectively correspond to the plural write control units. Further, one write control unit among them transfers the setting value from the first memory area to the second memory area of this write control unit, and applies the setting value stored in the second memory area and causes the corresponding print mechanism to print a page image. Another write control unit among them transfers the setting value to the second memory area of this write control unit from the second memory area of another write control unit among them, and applies the setting value stored in the second memory area and causes the corresponding print mechanism to print a page image.
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公开(公告)号：US20230393509A1
公开(公告)日：2023-12-07
申请号：US18323619
申请日：2023-05-25
Applicant: KYOCERA Document Solutions Inc.
Inventor： Takayuki Mashimo
CPC classification number: G03G15/50 , G06K15/1219 , G06K15/129 , G03G15/0142
Abstract: Plural write control units independently control plural print mechanisms corresponding to plural toner colors. A controller stores a setting value for each page into a first memory area. Plural second memory areas respectively correspond to the plural write control units. Further, one write control unit among them transfers the setting value from the first memory area to the second memory area of this write control unit, and applies the setting value stored in the second memory area and causes the corresponding print mechanism to print a page image. Another write control unit among them transfers the setting value to the second memory area of this write control unit from the second memory area of another write control unit among them, and applies the setting value stored in the second memory area and causes the corresponding print mechanism to print a page image.
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