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公开(公告)号：US20230208997A1
公开(公告)日：2023-06-29
申请号：US18074099
申请日：2022-12-02
CPC分类号： H04N1/193 , G06V10/16 , H04N1/3876
摘要： An image reading device includes linear image sensors that are arranged so that adjacent image sensors include an overlapping region in which portions of reading regions of the adjacent image sensors overlap in a main scanning direction, and a buffer unit for read image data. Image data of each overlapping region are generated by synthesizing first image data obtained by a first linear image sensor and second image data obtained by a second linear sensor, the first linear image sensor and the second linear sensor being adjacent in the main scanning direction. Image data of the predetermined line is generated based on image data in which the image data of each overlapping region are excluded from the image data stored in the buffer unit and the image data of each overlapping region. The processing is repeatedly executed in a sub-scanning direction.
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公开(公告)号：US20230077148A1
公开(公告)日：2023-03-09
申请号：US17798115
申请日：2021-02-09
申请人： NEC Platforms, Ltd.
发明人： Tetsuichiro Yamamoto
摘要： The present invention provides a control method of an image reading device, an image reading device, and a non-transitory computer-readable medium having a program stored thereon, which avoid a reduction in reading resolution. The control method of the image reading device includes: a first step (ST101) of generating N line-shaped images indicating N line-shaped regions (W11) in an imaging target (T1) being conveyed in a conveying direction (X1) by imaging the N line-shaped regions (W11) extending in a direction perpendicular to the conveying direction (X1); a second step (ST102) of performing the same step as the first step (ST101) at a point in time when the imaging target (T1) is conveyed by an amount associated to a width (11a) of N−1 line-shaped regions; and a step (ST103) of generating a read image by arranging the N line-shaped images generated in each of the steps in ascending order.
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公开(公告)号：US11509787B2
公开(公告)日：2022-11-22
申请号：US17543037
申请日：2021-12-06
发明人： Yasuyuki Horiguchi
摘要： Then image reading device includes a transparent document table, a frame, a reading unit, a moving mechanism, a white reference member, and a controller. The frame is provided around a peripheral of the document table. The white reference member is provided on the frame adjacent to the document table in the sub scanning direction and has a length in the main scanning direction longer than the document table. The reading unit includes a first reading part which reads an area corresponding to the document table and a second reading part which reads an area corresponding to the frame. The controller detects a boundary between the frame and the reference member based on a read value of the second reading part while moving the reading unit by the moving mechanism, and positions the reading unit at a home position apart from the boundary by a predetermined distance.
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公开(公告)号：US20220182503A1
公开(公告)日：2022-06-09
申请号：US17543037
申请日：2021-12-06
发明人： Yasuyuki HORIGUCHI
摘要： Then image reading device includes a transparent document table, a frame, a reading unit, a moving mechanism, a white reference member, and a controller. The frame is provided around a peripheral of the document table. The white reference member is provided on the frame adjacent to the document table in the sub scanning direction and has a length in the main scanning direction longer than the document table. The reading unit includes a first reading part which reads an area corresponding to the document table and a second reading part which reads an area corresponding to the frame. The controller detects a boundary between the frame and the reference member based on a read value of the second reading part while moving the reading unit by the moving mechanism, and positions the reading unit at a home position apart from the boundary by a predetermined distance.
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公开(公告)号：US11190665B2
公开(公告)日：2021-11-30
申请号：US16621253
申请日：2018-09-04
发明人： Wuchang Qi , Juan Deng , Junwei Ma , Kai Wang
摘要： An image scanning apparatus, and a method and an apparatus for controlling receiving of an image scanning optical signal are provided. The mage scanning apparatus may include an array photosensitive pixel unit configured to receive at least one optical signal, and a control circuit connected with the array photosensitive pixel unit and configured to control the array photosensitive pixel unit to receive the at least one optical signal. With the adoption of the image scanning apparatus, and the method and the apparatus for controlling receiving of the image scanning optical signal, the problem in the related art that an image is easily interfered by external stray lights within a non-exposure time of a scanning period and accordingly quality of a scanned image is reduced may be solved.
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公开(公告)号：US20210120141A1
公开(公告)日：2021-04-22
申请号：US17133447
申请日：2020-12-23
发明人： Takashi SHIRAISHI
摘要： In accordance with an embodiment, a lens mirror array includes a plurality of optical elements integrally connected in a first direction. Each optical element includes an incident side lens surface through which light enters the optical element, a ridge located at an edge of the incident side lens surface, a reflection surface on which light incident on the incident side lens surface is reflected, an exit side lens surface through which light reflected by the reflection surface exits the optical element, and a groove surrounding the reflection surface except for a portion adjacent to the ridge, the portion adjacent to the ridge connecting to an adjacent optical element in the plurality of optical elements.
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公开(公告)号：US10964742B2
公开(公告)日：2021-03-30
申请号：US16752194
申请日：2020-01-24
申请人： Artilux, Inc.
发明人： Yun-Chung Na , Szu-Lin Cheng , Shu-Lu Chen , Han-Din Liu , Hui-Wen Chen , Che-Fu Liang , Yuan-Fu Lyu , Chien-Lung Chen , Chung-Chih Lin , Kuan-Chen Chu
IPC分类号： H01L27/146 , H04N1/193 , H01L31/0352 , H01L31/0376 , H01L31/102 , H01L31/075 , H01L31/109 , H01L31/103
摘要： A circuit that includes: a photodiode configured to absorb photons and to generate photo-carriers from the absorbed photons; a first MOSFET transistor that includes: a first channel terminal coupled to a first terminal of the photodiode and configured to collect a portion of the photo-carriers generated by the photodiode; a second channel terminal; and a gate terminal coupled to a first control voltage source; a first readout circuit configured to output a first readout voltage; a second readout circuit configured to output a second readout voltage; and a current-steering circuit configured to steer the photo-carriers generated by the photodiode to one or both of the first readout circuit and the second readout circuit.
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公开(公告)号：US20200382666A1
公开(公告)日：2020-12-03
申请号：US16618686
申请日：2018-12-07
发明人： Daisuke OHAMA , Hideki KUNISHIO , Masaaki OKADA , Yuki OKUHIGASHI , Masahiko TAKASHINA , Masaki WAKISAKA
摘要： An image reading device includes light guides (5, 6) that emit light to an object to be read, a lens body (8) that condenses reflected light, a light receiver (13) that receives the reflected light, a sensor board (24) on which is mounted the light receiver (13), a lens holder (11), and a housing (9) that houses or holds these components. The lens holder (11) includes a holder bottom (11g), light guide positioners (11a, 11b) and lens body holders (11e, 11f). In the lens holder (11), the lens body (8) is attached between the lens body holders (11e, 11f), the sensor board (24) is attached to the holder bottom (11g) such that the light receiver (13) aligns with an optical axis of the lens body (8), and the light guides (5, 6) are attached to the light guide positioners (11a, 11b). A surface of each light guide positioner (11a, 11b) that faces the corresponding light guide (5, 6) to be attached has at least a portion having a same shape a s a shape of a surface of the light guide.
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公开(公告)号：US10798265B1
公开(公告)日：2020-10-06
申请号：US16558158
申请日：2019-09-02
申请人： FUJI XEROX CO., LTD.
发明人： Hiroshi Watanabe
摘要： An image reading device includes an image reading unit that reads an image while moving in a sub-scanning direction, a casing that houses the image reading unit, a guiding member that is movable relative to the casing in the sub-scanning direction and guides the casing in the sub-scanning direction, and an endless member to which the casing is fixed and that endlessly travels between a starting position and a terminal position in the sub-scanning direction.
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公开(公告)号：US20200296250A1
公开(公告)日：2020-09-17
申请号：US16797245
申请日：2020-02-21
发明人： Akira Otake
摘要： An image reading unit includes an illumination portion, a reading portion, a casing, and a reflection member including a reflecting surface. The casing is provided with an opening. The reflection member is held outside of the opening of the casing so that at least a part of the reflecting surface is exposed to the inside of the casing through the opening.
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