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1.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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2.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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3.发明申请公开(公告)号：US20180139345A1
公开(公告)日：2018-05-17
申请号：US15600156
申请日：2017-05-19
申请人： Naoki GOH , Masaki NAGASE , Hiroki SHIRADO , Naoki ASABA , Shiho SHIMOSAKA , Satoshi HATANAKA , Osamu KIZAKI , Hiroshi ISHll , Masayuki YABUUCHI , Hideki HASHIMOTO , Atsushi YOSHIDA , Masafumi KISHI , Ayumu HASHIMOTO
发明人： Naoki GOH , Masaki NAGASE , Hiroki SHIRADO , Naoki ASABA , Shiho SHIMOSAKA , Satoshi HATANAKA , Osamu KIZAKI , Hiroshi ISHll , Masayuki YABUUCHI , Hideki HASHIMOTO , Atsushi YOSHIDA , Masafumi KISHI , Ayumu HASHIMOTO
IPC分类号： H04N1/04 , G03G15/043 , G03G15/01 , H04N1/00
CPC分类号： H04N1/04 , H04N1/00766
摘要： An image reading apparatus includes: a plurality of light sources to emit light to a target to be read from a plurality of different irradiation positions; an illumination controller to sequentially and alternately turn on or off the plurality of light sources with a blinking cycle not perceptible to the human eye; an image capturing device to photoelectrically convert, pixel by pixel, reflected light of the light emitted to the target from the plurality of light sources to capture a plurality of read images; a memory to store one or more read images of the plurality of read images being captured; and a synthesizer to synthesize preset regions of the plurality of read images using the one or more read images stored in the memory to generate a synthesized read image representing the target, the preset region of each of the plurality of read images having an image level change caused by reflected light that is smaller than a threshold.
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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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5.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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6.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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7.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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8.发明申请PHOTOELECTRIC CONVERSION DEVICE, IMAGE READING APPARATUS, IMAGE FORMING APPARATUS, AND METHOD OF PHOTOELETRIC CONVERSION 审中-公开光电转换装置，图像读取装置，图像形成装置和光电转换方法公开(公告)号：US20160373604A1
公开(公告)日：2016-12-22
申请号：US15176395
申请日：2016-06-08
CPC分类号： H04N1/193 , H04N5/361 , H04N5/3694 , H04N5/3698 , H04N5/378
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.
摘要翻译： 光电转换装置包括多个光接收元件，多个A / D转换单元和偏移给出单元。 光接收元件沿一个方向排列，并且将光信号转换成电信号。 A / D转换单元对从光接收元件输出的电信号进行A / D转换。 在电信号输入到A / D转换单元之前，偏移给出单元给出从光接收元件输出的电信号的一定电平的偏移电压，而不流过稳定的电流。
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9.发明申请公开(公告)号：US20140204432A1
公开(公告)日：2014-07-24
申请号：US14138791
申请日：2013-12-23
IPC分类号： H04N1/00
CPC分类号： H04N1/00798 , H04N1/00933 , H04N1/32475 , H04N2201/0081
摘要： An image reading apparatus includes: light-receiving elements arranged in a main-scanning direction to perform photoelectric conversion pixel by pixel; AD converter units that convert each piece of analog data photoelectric-converted by the light-receiving elements into parallel pieces of digital data; a storage unit that stores therein each of the digital data converted by the AD converter units; a converter unit that reads the digital data stored in the storage unit and converts the read digital data into serial data in the main-scanning direction; a readout control unit that changeably controls a readout start pixel and a readout end pixel of the serial data in the main-scanning direction; and a period change unit that changes a period in which the converter unit converts digital data into serial data in the main-scanning direction based on the readout start pixel and the readout end pixel.
摘要翻译： 图像读取装置包括：以主扫描方向布置的光接收元件，逐像素地执行光电转换; AD转换器单元，将由光接收元件光电转换的每个模拟数据转换为数字数据的并行; 存储单元，其中存储由AD转换器单元转换的数字数据的每个; 转换器单元，读取存储在存储单元中的数字数据，并将读取的数字数据转换成主扫描方向的串行数据; 读出控制单元，其可变地控制主扫描方向上的串行数据的读出开始像素和读出端像素; 以及周期改变单元，其改变转换器单元基于读出的开始像素和读出端像素将数字数据转换成主扫描方向上的串行数据的周期。
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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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