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1.发明申请公开(公告)号：US20190166275A1
公开(公告)日：2019-05-30
申请号：US16155802
申请日：2018-10-09
申请人： Tatsuya Ishii , Satoshi Iwanami , Daisuke Nikaku , Masamoto Nakazawa , Osamu Inage , Shinichiroh Wada , Ryohma Ikemoto
发明人： Tatsuya Ishii , Satoshi Iwanami , Daisuke Nikaku , Masamoto Nakazawa , Osamu Inage , Shinichiroh Wada , Ryohma Ikemoto
摘要： A reading device including a position reference member having a reference pattern having a line extending along a first direction of the position reference member, the position reference member movable in a second direction orthogonal to the first direction; a reader including a plurality of sensor chips arranged along the first direction, each of the sensor chips having a length defined by a plurality of pixels; and circuitry. The circuitry is configured to detect the reference pattern of the position reference member using the reader; determine coordinates of at least two sensor chips in the second direction, based on the detected reference pattern of the position reference member; and correct a position of a reading target in the second direction based on the coordinates determined for the at least two sensor chips of the reader in the second direction.
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公开(公告)号：US10771646B2
公开(公告)日：2020-09-08
申请号：US16155781
申请日：2018-10-09
申请人： Tatsuya Ishii , Yoshiko Niki , Satoshi Iwanami , Osamu Inage , Shinichiroh Wada , Masamoto Nakazawa , Ryohma Ikemoto , Daisuke Nikaku
发明人： Tatsuya Ishii , Yoshiko Niki , Satoshi Iwanami , Osamu Inage , Shinichiroh Wada , Masamoto Nakazawa , Ryohma Ikemoto , Daisuke Nikaku
摘要： A reading device includes a position reference member and a reader. The position reference member has a reference pattern that includes a line extending in a prescribed direction. The position reference member is configured to relatively move in a direction orthogonal to the prescribed direction. The reader includes a plurality of sensor chips, each of the sensor chips including a plurality of pixels. The reference pattern corresponds to each of the sensor chips of the reader.
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公开(公告)号：US10931845B2
公开(公告)日：2021-02-23
申请号：US16155802
申请日：2018-10-09
申请人： Tatsuya Ishii , Satoshi Iwanami , Daisuke Nikaku , Masamoto Nakazawa , Osamu Inage , Shinichiroh Wada , Ryohma Ikemoto
发明人： Tatsuya Ishii , Satoshi Iwanami , Daisuke Nikaku , Masamoto Nakazawa , Osamu Inage , Shinichiroh Wada , Ryohma Ikemoto
摘要： A reading device including a position reference member having a reference pattern having a line extending along a first direction of the position reference member, the position reference member movable in a second direction orthogonal to the first direction; a reader including a plurality of sensor chips arranged along the first direction, each of the sensor chips having a length defined by a plurality of pixels; and circuitry. The circuitry is configured to detect the reference pattern of the position reference member using the reader; determine coordinates of at least two sensor chips in the second direction, based on the detected reference pattern of the position reference member; and correct a position of a reading target in the second direction based on the coordinates determined for the at least two sensor chips of the reader in the second direction.
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4.发明申请公开(公告)号：US20190166274A1
公开(公告)日：2019-05-30
申请号：US16155781
申请日：2018-10-09
申请人： Tatsuya Ishii , Yoshiko Niki , Satoshi Iwanami , Osamu Inage , Shinichiroh Wada , Masamoto Nakazawa , Ryohma Ikemoto , Daisuke Nikaku
发明人： Tatsuya Ishii , Yoshiko Niki , Satoshi Iwanami , Osamu Inage , Shinichiroh Wada , Masamoto Nakazawa , Ryohma Ikemoto , Daisuke Nikaku
IPC分类号： H04N1/00
CPC分类号： H04N1/00761 , H04N1/00034 , H04N1/00045 , H04N1/00063 , H04N1/00702 , H04N1/00774 , H04N1/00819 , H04N1/0473 , H04N1/053 , H04N2201/0006 , H04N2201/044 , H04N2201/0448 , H04N2201/04715
摘要： A reading device includes a position reference member and a reader. The position reference member has a reference pattern that includes a line extending in a prescribed direction. The position reference member is configured to relatively move in a direction orthogonal to the prescribed direction. The reader includes a plurality of sensor chips, each of the sensor chips including a plurality of pixels. The reference pattern corresponds to each of the sensor chips of the reader.
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公开(公告)号：US20190163112A1
公开(公告)日：2019-05-30
申请号：US16135578
申请日：2018-09-19
申请人： Daisuke Nikaku , Masamoto Nakazawa , Ryohma Ikemoto , Osamu Inage , Tatsuya Ishii , Satoshi Iwanami , Hideyo Makino , Kimiharu Yamazaki , Kohta Aoyagi , Satoshi Nakayama
发明人： Daisuke Nikaku , Masamoto Nakazawa , Ryohma Ikemoto , Osamu Inage , Tatsuya Ishii , Satoshi Iwanami , Hideyo Makino , Kimiharu Yamazaki , Kohta Aoyagi , Satoshi Nakayama
摘要： A position detector includes a reading device, a position reference member having a mark opposite the reading device, and circuitry. The circuitry controls the reading device to detect the contour of the processing target and the position of the image pattern on the processing target and the position of the mark and corrects a processing position for the processing target to offset distortion of the reading device.
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公开(公告)号：US10757280B2
公开(公告)日：2020-08-25
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
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.
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公开(公告)号：US20190238687A1
公开(公告)日：2019-08-01
申请号：US16255870
申请日：2019-01-24
IPC分类号： H04N1/00
摘要： A position detecting device includes an image sensor and circuitry. The image sensor is configured to read reflected light of light emitted from a light source onto a medium to be read. The circuitry is configured to perform black correction processing on an output signal of the image sensor using black correction data of the image sensor and detect a position of the medium from the output signal after the black correction processing.
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公开(公告)号：US20190238702A1
公开(公告)日：2019-08-01
申请号：US16255872
申请日：2019-01-24
IPC分类号： H04N1/00
CPC分类号： H04N1/00761 , G01B5/0014 , G01B11/028 , G01B11/26 , G03G15/5062 , H04N1/00702 , H04N1/00708 , H04N1/00737 , H04N1/00779 , H04N1/00785
摘要： A position detecting device includes circuitry. The circuitry is configured to control a reading device to detect, as a first detection result, an outer shape of a processing subject and a position of an image pattern on the processing subject; control the reading device to detect, as a second detection result, a mark arranged on a position reference member, the mark corresponding to a predetermined position in the reading device; and detect a first correction value of the reading device and a second correction value of the reading device corrected by the first correction value on basis of the second detection result and reflect the first correction value and the second correction value to the first detection result to correct a processing position in the processing subject.
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公开(公告)号：US10674027B2
公开(公告)日：2020-06-02
申请号：US16255870
申请日：2019-01-24
IPC分类号： H04N1/00
摘要： A position detecting device includes an image sensor and circuitry. The image sensor is configured to read reflected light of light emitted from a light source onto a medium to be read. The circuitry is configured to perform black correction processing on an output signal of the image sensor using black correction data of the image sensor and detect a position of the medium from the output signal after the black correction processing.
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公开(公告)号：US11477342B2
公开(公告)日：2022-10-18
申请号：US17489869
申请日：2021-09-30
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.
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