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公开(公告)号：US20220109779A1
公开(公告)日：2022-04-07
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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公开(公告)号：US20190238717A1
公开(公告)日：2019-08-01
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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3.发明申请公开(公告)号：US20190335061A1
公开(公告)日：2019-10-31
申请号：US16381520
申请日：2019-04-11
摘要： An information detecting device detects information from a target. The information detecting device includes processing circuitry. The processing circuitry is configured to perform a first information acquisition operation of acquiring first information from a target criterion, a second information acquisition operation of acquiring second information from the target, and an information conversion operation of converting the second information acquired by the second information acquisition operation, into third information, with the first information acquired by the first information acquisition operation, the third information having a dimension different from respective dimensions of the first information and the second information; and perform control such that an information-acquisition condition in the first information acquisition operation is identical to an information-acquisition condition in the second information acquisition operation.
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4.发明申请公开(公告)号：US20210014441A1
公开(公告)日：2021-01-14
申请号：US16925391
申请日：2020-07-10
IPC分类号： H04N5/367 , H04N5/378 , H04N5/3745 , H04N1/60
摘要： An abnormal-pixel detecting device includes an image sensor and an image processor. The image sensor is configured to capture an image of a subject. The image processor is configured to calculate: a ratio between a first plurality of pixel values captured by the image sensor and a second plurality of pixel values whose reference position is shifted relative to the first plurality of pixel values in a main scanning direction to obtain a third plurality of pixel values; and detect an abnormal pixel in the third plurality of pixel values.
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5.发明申请公开(公告)号：US20210227087A1
公开(公告)日：2021-07-22
申请号：US16952103
申请日：2020-11-19
申请人： Tatsuya OZAKI , Tadaaki OYAMA , Masamoto NAKAZAWA , Yutaka OHMIYA
发明人： Tatsuya OZAKI , Tadaaki OYAMA , Masamoto NAKAZAWA , Yutaka OHMIYA
IPC分类号： H04N1/00
摘要： An authentication apparatus includes circuitry that selects at least one of a first light emitting device and a second light emitting device. The first light emitting device emits light in a certain wavelength region. The second light emitting device emits light in a wavelength region different from the certain wavelength region of the light emitted from the first light emitting device. The circuitry further reads embedded information based on a reading result obtained in an imaging device that receives the light emitted from the selected at least one of the first light emitting device and the second light emitting device and reflected by an authentication medium. The embedded information includes information for authentication, and is embedded in the authentication medium and obtained with light in a range of light receiving sensitivity of silicon forming the imaging device.
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6.发明申请PHOTOELECTRIC CONVERSION DEVICE, SENSOR CONTROL CIRCUIT, IMAGE READING DEVICE, AND IMAGE FORMING APPARATUS 有权光电转换装置，传感器控制电路，图像读取装置和图像形成装置公开(公告)号：US20110051201A1
公开(公告)日：2011-03-03
申请号：US12850133
申请日：2010-08-04
IPC分类号： H04N1/04
CPC分类号： H04N5/3692 , H04N5/372 , H04N5/3765
摘要： The photoelectric conversion device includes a photoelectric conversion element configured to convert light reflected from an original image to electrical signals and a clock generator configured to generate driving signals for driving the photoelectric conversion element from a reference clock. Each of the driving signals is generated using the same logic gate or substantially the same logic gate.
摘要翻译： 光电转换装置包括被配置为将从原始图像反射的光转换为电信号的光电转换元件和被配置为产生用于从参考时钟驱动光电转换元件的驱动信号的时钟发生器。 每个驱动信号使用相同的逻辑门或基本上相同的逻辑门产生。
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7.发明申请PHOTOELECTRIC CONVERSION ELEMENT, IMAGE READING DEVICE, IMAGE FORMING APPARATUS, AND PHOTOELECTRIC CONVERSION METHOD 有权光电转换元件，图像读取装置，图像形成装置和光电转换方法公开(公告)号：US20160173719A1
公开(公告)日：2016-06-16
申请号：US14955569
申请日：2015-12-01
IPC分类号： H04N1/193 , H04N5/378 , H04N1/053 , H04N5/3745
摘要： Multiple photodetectors that photoelectric convert incident light to output a pixel signal; multiple analog/digital (A/D) convertors that A/D convert a plurality of pixel signals that are output by the photodetectors in parallel in a plurality of systems; a retaining unit that retains the pixel signals A/D converted in parallel by the A/D convertors in an aligned manner in one direction, to be arranged in reading order from a first pixel signal to a final pixel signal; and multiple transfer units that transfer the pixel signals arranged and retained by the retaining unit, sequentially from the first pixel signal from a first-pixel-signal retaining position toward a final-pixel signal retaining position of the retaining unit are included.
摘要翻译： 多个光电检测器，光电转换入射光以输出像素信号; 多个模拟/数字（A / D）转换器，其在多个系统中并行地转换由所述光电检测器并行输出的多个像素信号; 保持单元，其以一个方向对齐的方式保持由A / D转换器并行转换的像素信号A / D，以从第一像素信号到最终像素信号的读取顺序排列; 并且包括从第一像素信号从第一像素信号保持位置朝向保持单元的最终像素信号保持位置顺序地传送由保持单元布置和保持的像素信号的多个传送单元。
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8.发明申请公开(公告)号：US20190327387A1
公开(公告)日：2019-10-24
申请号：US16374146
申请日：2019-04-03
摘要： A color inspection device includes a reading device and circuitry. The reading device images a reference object and a color detection object to obtain readings of each of the reference object and the color detection object. The circuitry corrects the readings of the color detection object by using a correction coefficient that is generated from the readings of the reference object and color information measured for each arbitrary region of the reference object.
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9.发明申请公开(公告)号：US20190289163A1
公开(公告)日：2019-09-19
申请号：US16427946
申请日：2019-05-31
摘要： A photoelectric conversion device includes a plurality of light receiving elements, a plurality of A/D conversion units, and an offset giving unit. The light receiving elements are arrayed in one direction and each convert a light signal into an electrical signal. The A/D conversion units perform A/D conversion on the electrical signals output from the light receiving elements. The offset giving unit gives an offset voltage of a certain level to the electrical signals output from the light receiving elements without flowing a steady current before the electrical signals are input into the A/D conversion units.
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10.发明申请公开(公告)号：US20170302821A1
公开(公告)日：2017-10-19
申请号：US15485323
申请日：2017-04-12
CPC分类号： H04N1/409 , H04N1/00018 , H04N1/193 , H04N1/40056 , H04N1/4076 , H04N2201/0094
摘要： A signal processing device includes a signal output circuit, a controller, and a corrector. The signal output circuit outputs a signal according to a physical quantity being input. The controller controls the signal output circuit. The corrector corrects a signal to be corrected. The signal to be corrected is output from the signal output circuit. The signal output circuit selectively performs one of first operation of outputting a characteristic signal that indicates characteristics of the signal output circuit and second operation of outputting a pseudo signal that is generated spuriously, according to control of the controller. The corrector corrects the signal to be corrected based on one of the characteristic signal and the pseudo signal output from the signal output circuit.
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