专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20150098117A1 IMAGING DEVICE, IMAGE READING APPARATUS, IMAGE FORMING APPARATUS, AND IMAGE READING METHOD 有权
标题翻译：成像装置，图像读取装置，图像形成装置和图像读取方法
公开(公告)号：US20150098117A1
公开(公告)日：2015-04-09
申请号：US14482515
申请日：2014-09-10
申请人： Kohei MARUMOTO , Masamoto Nakazawa , Masaki Nagase
发明人： Kohei MARUMOTO , Masamoto Nakazawa , Masaki Nagase
IPC分类号： H04N1/60
CPC分类号： H04N1/6002 , H04N1/4076 , H04N1/6008
摘要： An imaging device includes photoelectric conversion elements arranged unidirectionally for each color of light to be received, and performing photoelectric conversion of reflected light from an approximately same position of an object for the each color sequentially pixel by pixel; and a black correction unit that corrects a black level of the object with respect to a pixel group including some photoelectric conversion elements in a way that an output result of the photoelectric conversion of reflected light by a photoelectric conversion element for a pixel, independent of the reflected light, is subtracted from another output result of photoelectric conversion of reflected light by the photoelectric conversion element for the same pixel.
摘要翻译：一种成像装置包括针对待接收的每种颜色的单向布置的光电转换元件，并逐个逐像素地对来自每个颜色的物体的大致相同位置的反射光进行光电转换; 以及黑色校正单元，其以相对于包括一些光电转换元件的像素组的像素组的黑色电平校正，其方式是使得由像素的光电转换元件的反射光的光电转换的输出结果独立于从相同像素的光电转换元件的反射光的光电转换的另一输出结果中减去反射光。

2. 发明授权

US09118873B2 Imaging device, image reading apparatus, image forming apparatus, and image reading method 有权
标题翻译：成像装置，图像读取装置，图像形成装置和图像读取方法
公开(公告)号：US09118873B2
公开(公告)日：2015-08-25
申请号：US14482515
申请日：2014-09-10
申请人： Kohei Marumoto , Masamoto Nakazawa , Masaki Nagase
发明人： Kohei Marumoto , Masamoto Nakazawa , Masaki Nagase
IPC分类号： H04N1/407 , H04N1/60
CPC分类号： H04N1/6002 , H04N1/4076 , H04N1/6008
摘要： An imaging device includes photoelectric conversion elements arranged unidirectionally for each color of light to be received, and performing photoelectric conversion of reflected light from an approximately same position of an object for the each color sequentially pixel by pixel; and a black correction unit that corrects a black level of the object with respect to a pixel group including some photoelectric conversion elements in a way that an output result of the photoelectric conversion of reflected light by a photoelectric conversion element for a pixel, independent of the reflected light, is subtracted from another output result of photoelectric conversion of reflected light by the photoelectric conversion element for the same pixel.
摘要翻译：一种成像装置包括针对待接收的每种颜色的单向布置的光电转换元件，并逐个逐像素地对来自每个颜色的物体的大致相同位置的反射光进行光电转换; 以及黑色校正单元，其以相对于包括一些光电转换元件的像素组的像素组的黑色电平校正，其方式是使得由像素的光电转换元件的反射光的光电转换的输出结果独立于从相同像素的光电转换元件的反射光的光电转换的另一输出结果中减去反射光。

3. 发明授权

US09100533B2 Photoelectric conversion element, image reading device, image forming apparatus, and image reading method 有权
标题翻译：光电转换元件，图像读取装置，图像形成装置和图像读取方法
公开(公告)号：US09100533B2
公开(公告)日：2015-08-04
申请号：US14301488
申请日：2014-06-11
申请人： Masamoto Nakazawa , Masaki Nagase
发明人： Masamoto Nakazawa , Masaki Nagase
IPC分类号： H04N1/04 , H04N1/10 , H04N1/028
CPC分类号： H04N1/02815 , H04N1/0473 , H04N1/1013 , H04N1/1039
摘要： A photoelectric conversion element includes: a plurality of light receiving elements that are arranged in a main-scanning direction, are arranged in a sub-scanning direction according to colors of light to be received, and accumulates electric charge due to light exposure; and a plurality of AD conversion units that convert analog signals that indicate quantities of electric charge accumulated in the light receiving elements into digital signals are provide for each of groups each consisting of a predetermined number of pixels corresponding to the light receiving elements arranged in the sub-scanning direction. The AD conversion units convert the analog signals into the digital signals in an order in which the light receiving elements in the group are exposed to light. The light receiving elements constitute a correction unit that performs correction so as to reduce a difference relating to the timings in the sub-scanning direction.
摘要翻译：光电转换元件包括：沿主扫描方向布置的多个光接收元件，按照要接收的光的颜色在副扫描方向上排列，并且由于曝光而积累电荷; 将表示在光接收元件中累积的电荷量的模拟信号转换为数字信号的多个AD转换单元，分别对应于配置在子信号中的受光元件的规定数量的像素构成扫描方向。 AD转换单元按照组中的光接收元件暴露于光的顺序将模拟信号转换成数字信号。光接收元件构成校正单元，其执行校正，以减少与副扫描方向上的定时有关的差异。

4. 发明授权

US11936829B2 Illuminating device, image reading device, and image forming apparatus with multiple light sources 有权
公开(公告)号：US11936829B2
公开(公告)日：2024-03-19
申请号：US17792536
申请日：2021-03-22
申请人： Atsushi Sugai , Masamoto Nakazawa , Masahiro Itoh
发明人： Atsushi Sugai , Masamoto Nakazawa , Masahiro Itoh
IPC分类号： H04N1/028 , F21S4/28 , H04N1/23 , F21Y105/16 , F21Y113/10 , F21Y115/10
CPC分类号： H04N1/0288 , F21S4/28 , H04N1/23 , F21Y2105/16 , F21Y2113/10 , F21Y2115/10 , H04N2201/0081
摘要： An illuminating device, an image reading device, and an image forming apparatus. The illuminating device includes a plurality of first light sources arrayed on a circuit board, the first light sources having a plurality of first light emitting surfaces through which light is emitted, and a second light source disposed on an upstream side of the first light sources in an irradiation direction of the light. In the illuminating device, the second light source has a second light emitting surface through which light is emitted, and the second light source has a directivity angle different from a directivity angle of each one of the first light sources. The image reading device includes the illuminating device, and an imaging device to receive the light reflected by a document to capture an image of the document.

5. 发明授权

US11546535B2 Abnormal-pixel detecting device, image forming apparatus, and method of detecting abnormal pixel 有权
公开(公告)号：US11546535B2
公开(公告)日：2023-01-03
申请号：US16925391
申请日：2020-07-10
申请人： Yutaka Ohmiya , Hideki Hashimoto , Masamoto Nakazawa
发明人： Yutaka Ohmiya , Hideki Hashimoto , Masamoto Nakazawa
IPC分类号： H04N5/3745 , H04N5/365 , H04N5/367 , H04N1/407 , H04N1/60 , H04N5/378
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.

6. 发明授权

US10931845B2 Reading device, image forming apparatus, correction value calculating method, and storage medium storing program code 有权
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
IPC分类号： H04N1/03 , H04N1/00 , H04N1/12 , G03G15/00 , B65H5/06
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.

7. 发明授权

US10674027B2 Position detecting device, image forming apparatus, and method 审中-公开
公开(公告)号：US10674027B2
公开(公告)日：2020-06-02
申请号：US16255870
申请日：2019-01-24
申请人： Daisuke Nikaku , Masamoto Nakazawa , Ryohma Ikemoto
发明人： Daisuke Nikaku , Masamoto Nakazawa , Ryohma Ikemoto
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.

8. 发明申请

US20190166274A1 READING DEVICE, IMAGE FORMING APPARATUS, REFERENCE PATTERN READING METHOD, AND STORAGE MEDIUM STORING PROGRAM CODE 审中-公开
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.

9. 发明授权

US09894236B2 Photoelectric transducer, image reading device, image forming apparatus, and image reading method 有权
公开(公告)号：US09894236B2
公开(公告)日：2018-02-13
申请号：US15361265
申请日：2016-11-25
申请人： Masamoto Nakazawa
发明人： Masamoto Nakazawa
IPC分类号： H04N1/04 , H04N1/193 , H04N1/00 , H04N5/374
CPC分类号： H04N1/193 , H04N1/00013 , H04N5/361 , H04N5/374 , H04N5/3765 , H04N5/378 , H04N9/045 , H04N2201/0081
摘要： A photoelectric transducer includes: a plurality of pixels arranged in one direction for each of colors of light to be received, and configured such that light is converted into an electrical signal in each of the plurality of pixels; a parallel processor configured to perform parallel processing on a plurality of electrical signals obtained through conversion in the pixels in synchronization with a spread-spectrum clock for each of pixel groups, each of the pixel groups including a predetermined number of pixels; and a corrector configured to correct an offset level of each of the plurality of electrical signals having undergone the parallel processing performed by the parallel processor, using one of values, each of the values being common within one of the pixel groups.

10. 发明授权

US09762826B2 Photoelectric conversion element, image reading device, image forming apparatus, and photoelectric conversion method 有权
公开(公告)号：US09762826B2
公开(公告)日：2017-09-12
申请号：US14873628
申请日：2015-10-02
申请人： Masamoto Nakazawa , Tohru Kanno
发明人： Masamoto Nakazawa , Tohru Kanno
IPC分类号： H04N5/365 , G01J1/44 , H04N5/357 , H04N5/378
CPC分类号： H04N5/3651 , H04N5/3575 , H04N5/3658 , H04N5/378
摘要： A photoelectric conversion element includes a light receiving element, a buffer unit, a current control circuit, and an elimination circuit. The light receiving element generates electrical charge according to an amount of light received. The buffer unit buffers and outputs a voltage signal according to the electrical charge generated by the light receiving element. When the buffer unit outputs the voltage signal, the current control circuit controls electric current flowing through the buffer unit so as to be a predetermined amount of electric current. The elimination circuit eliminates high-frequency components in a band equal to or higher than a predetermined band from the voltage signal output from the buffer unit.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式