公开(公告)号：US20130003137A1

公开(公告)日：2013-01-03

申请号：US13634640

申请日：2011-03-03

Applicant: Yoshihisa Soeda

Inventor： Yoshihisa Soeda

IPC: H04N1/393

CPC classification number: H04N1/0402 ,  H04N1/0414 ,  H04N1/0443 ,  H04N1/12 ,  H04N1/193 ,  H04N1/203 ,  H04N1/2032 ,  H04N1/393 ,  H04N1/40056

Abstract: An image reader includes a first image reading unit that reads first image data by scanning one surface of a document at a first resolution corresponding to a magnification ratio and a predetermined first scan cycle; and a second image reading unit that accumulates light radiated from a light source and reads second image data by scanning other surface of the document at a fixed second resolution and a second scan cycle corresponding to the magnification ratio, wherein the second image reading unit controls light accumulation time of the light radiated from the light source to be constant.

Abstract translation: 图像读取器包括第一图像读取单元，其通过以对应于放大率和预定的第一扫描周期的第一分辨率扫描文档的一个表面来读取第一图像数据; 以及第二图像读取单元，其累积从光源照射的光，并且以固定的第二分辨率和对应于所述放大率的第二扫描周期扫描所述文档的其他表面并读取第二图像数据，其中所述第二图像读取单元控制光 从光源照射的光的积聚时间恒定。

公开(公告)号：US07989748B2

公开(公告)日：2011-08-02

申请号：US11484641

申请日：2006-07-12

Applicant: Yoshihisa Soeda ,  Norio Yamada ,  Yoshinobu Kagami ,  Osamu Inage ,  Kenichi Satoh ,  Atsushi Ikeda

Inventor： Yoshihisa Soeda ,  Norio Yamada ,  Yoshinobu Kagami ,  Osamu Inage ,  Kenichi Satoh ,  Atsushi Ikeda

IPC: H01L27/00 ,  G01N21/88 ,  H04N5/217 ,  H04N9/64

CPC classification number: H04N1/401 ,  H04N1/407 ,  H04N1/486

Abstract: A level detecting part detects image data levels for the respective output directions of the first half and the second half to be used for the linearity correction, which image data levels correspond to image data around a connection point between the first half and the second half and are obtained from respective combinations for the respective output directions of the first half and the second half. A calculating part calculates linearity correction values or correction value calculating parameters from the detected image data levels for any one of the first half and the second half; and a defect detection part detecting a defect in the image data levels thus detected around the connection point are provided.

Abstract translation: 电平检测部分检测要用于线性校正的前半部分和第二半部分的各个输出方向的图像数据电平，哪个图像数据电平对应于在前半部分和下半部分之间的连接点周围的图像数据， 从上半部和第二半部的各输出方向的各组合获得。 计算部分根据检测到的上半部和第二半部中任一个的图像数据电平计算线性校正值或校正值计算参数; 并且提供了检测在连接点周围检测到的图像数据水平的缺陷的缺陷检测部分。

公开(公告)号：US20070013954A1

公开(公告)日：2007-01-18

申请号：US11484641

申请日：2006-07-12

Applicant: Yoshihisa Soeda ,  Norio Yamada ,  Yoshinobu Kagami ,  Osamu Inage ,  Kenichi Satoh ,  Atsushi Ikeda

Inventor： Yoshihisa Soeda ,  Norio Yamada ,  Yoshinobu Kagami ,  Osamu Inage ,  Kenichi Satoh ,  Atsushi Ikeda

IPC: H04N1/409

CPC classification number: H04N1/401 ,  H04N1/407 ,  H04N1/486

Abstract: A level detecting part detects image data levels for the respective output directions of the first half and the second half to be used for the linearity correction, which image data levels correspond to image data around a connection point between the first half and the second half and are obtained from respective combinations for the respective output directions of the first half and the second half. A calculating part calculates linearity correction values or correction value calculating parameters from the detected image data levels for any one of the first half and the second half; and a defect detection part detecting a defect in the image data levels thus detected around the connection point are provided.

Abstract translation: 电平检测部分检测要用于线性校正的前半部分和第二半部分的各个输出方向的图像数据电平，哪个图像数据电平对应于在前半部分和下半部分之间的连接点周围的图像数据， 从上半部和第二半部的各输出方向的各组合获得。 计算部分根据检测到的上半部和第二半部中任一个的图像数据电平计算线性校正值或校正值计算参数; 并且提供了检测在连接点周围检测到的图像数据水平的缺陷的缺陷检测部分。

公开(公告)号：US07869086B2

公开(公告)日：2011-01-11

申请号：US11633023

申请日：2006-12-04

Applicant: Yoshihisa Soeda

Inventor： Yoshihisa Soeda

IPC: G06F15/00 ,  G06K9/72

CPC classification number: H04N1/407 ,  H04N1/00005 ,  H04N1/00013 ,  H04N1/00034 ,  H04N1/00055 ,  H04N1/00087 ,  H04N2201/044

Abstract: An offset adjusting device includes a sample-hold unit that sample-holds an analog image signal obtained by converting reflected light from an original into an electric signal with a photoelectric conversion device to thereby obtain a sample-hold signal; an amplifying unit that amplifies the sample-hold signal to obtain an amplified signal; an analog-digital converter that digitizes the amplified signal to obtain a digital signal; a difference detecting unit that detects a difference between a black-level detection value of the digital signal and a black-level target value; an selecting unit that selects an adjustment coefficient among a plurality of adjustment coefficients based on comparison of the difference and a reference value; and a feedback unit that subjects an offset adjustment value based on the adjustment coefficient selected by the selecting unit to feedback processing.

Abstract translation: 偏移调整装置包括采样保持单元，其采样保持通过用光电转换装置将来自原稿的反射光转换为电信号而获得的模拟图像信号，从而获得采样保持信号; 放大单元，放大采样保持信号以获得放大信号; 模数转换器，其将放大的信号数字化以获得数字信号; 差分检测单元，其检测数字信号的黑电平检测值和黑电平目标值之间的差; 选择单元，其基于所述差异和参考值的比较来选择多个调整系数中的调整系数; 以及反馈单元，其基于由选择单元选择的调整系数进行偏移调整值进行反馈处理。

公开(公告)号：US07433088B2

公开(公告)日：2008-10-07

申请号：US10200340

申请日：2002-07-23

Applicant: Yoshihisa Soeda

Inventor： Yoshihisa Soeda

IPC: H04N1/04

CPC classification number: H04N1/4076 ,  H04N1/401

Abstract: An image reading apparatus, including an image sensor configured to receive light and output an image signal in accordance with image data carried in the light, an A/D converter configure to convert the image signal into a digital signal with reference to a reference voltage, and a reference white plate configured to be read so as to generate density data. Also included is a correction device configured to correct the digital signal in accordance with shading data, a reference member configured to define a readable density limit, and a detection device configured to detect a ratio of density of the reference white plate to that of the reference member as density adjustment data. The density is obtained by reading the respective reference member and reference white plate in substantially a same exposure condition. Further included is a control device configured to control the correction device to adjust the digital signal in accordance with the density adjustment data.

Abstract translation: 一种图像读取装置，包括被配置为接收光并根据光中携带的图像数据输出图像信号的图像传感器，A / D转换器被配置为参考参考电压将图像信号转换为数字信号， 以及被配置为被读取以产生密度数据的参考白板。 还包括被配置为根据阴影数据校正数字信号的校正装置，被配置为限定可读密度限度的参考构件和被配置为检测参考白板的密度与参考白板的密度之比的检测装置 会员密度调整数据。 通过在基本相同的曝光条件下读取相应的参考构件和参考白板来获得密度。 进一步包括的控制装置被配置为根据密度调节数据控制校正装置来调整数字信号。

公开(公告)号：US20070127046A1

公开(公告)日：2007-06-07

申请号：US11633023

申请日：2006-12-04

Applicant: Yoshihisa Soeda

Inventor： Yoshihisa Soeda

IPC: G03F3/08

CPC classification number: H04N1/407 ,  H04N1/00005 ,  H04N1/00013 ,  H04N1/00034 ,  H04N1/00055 ,  H04N1/00087 ,  H04N2201/044

Abstract: An offset adjusting device includes a sample-hold unit that sample-holds an analog image signal obtained by converting reflected light from an original into an electric signal with a photoelectric conversion device to thereby obtain a sample-hold signal; an amplifying unit that amplifies the sample-hold signal to obtain an amplified signal; an analog-digital converter that digitizes the amplified signal to obtain a digital signal; a difference detecting unit that detects a difference between a black-level detection value of the digital signal and a black-level target value; an selecting unit that selects an adjustment coefficient among a plurality of adjustment coefficients based on comparison of the difference and a reference value; and a feedback unit that subjects an offset adjustment value based on the adjustment coefficient selected by the selecting unit to feedback processing.

Abstract translation: 偏移调整装置包括采样保持单元，其采样保持通过用光电转换装置将来自原稿的反射光转换为电信号而获得的模拟图像信号，从而获得采样保持信号; 放大单元，放大采样保持信号以获得放大信号; 模数转换器，其将放大的信号数字化以获得数字信号; 差分检测单元，其检测数字信号的黑电平检测值和黑电平目标值之间的差; 选择单元，其基于所述差异和参考值的比较来选择多个调整系数中的调整系数; 以及反馈单元，其基于由选择单元选择的调整系数进行偏移调整值进行反馈处理。

公开(公告)号：US07359099B2

公开(公告)日：2008-04-15

申请号：US09859501

申请日：2001-05-18

Applicant: Yoshihisa Soeda ,  Yoshikazu Inoue

Inventor： Yoshihisa Soeda ,  Yoshikazu Inoue

IPC: H04N1/46

CPC classification number: H04N1/4076

Abstract: An image reading device includes a photoelectric device provided with an empty transfer part. An A-D converter performing A-D conversion on an output signal for each pixel of the photoelectric device. A reference voltage varying part varies a reference voltage of the A-D converter. A detecting part detects a black correction reference data output from each pixel of the photoelectric device. A black shading correcting part subtracts the black correction reference data from digital image data obtained from the output signal for each pixel of the photoelectric device when an image is read by the A-D converter having the reference voltage set therein. And, a correcting part corrects the black correction reference data by a ratio of an output level of the empty transfer part obtained through the A-D converter when the black correction reference data is detected and an output level of the empty transfer part obtained through the A-D converter when the image is read.

Abstract translation: 图像读取装置包括具有空转印部的光电装置。 A-D转换器对光电装置的每个像素的输出信号执行A-D转换。 参考电压变化部分改变A-D转换器的参考电压。 检测部分检测从光电装置的每个像素输出的黑色校正参考数据。 当由其中设置有参考电压的A-D转换器读取图像时，黑色阴影校正部分从针对光电装置的每个像素的输出信号获得的数字图像数据中减去黑色校正参考数据。 并且，校正部分通过在检测到黑色校正基准数据时通过AD转换器获得的空转印部分的输出电平与通过AD转换器获得的空转印部分的输出电平的比率来校正黑色校正参考数据 当图像被读取时。

公开(公告)号：US09300832B2

公开(公告)日：2016-03-29

申请号：US13634640

申请日：2011-03-03

Applicant: Yoshihisa Soeda

Inventor： Yoshihisa Soeda

IPC: H04N1/393 ,  H04N1/04 ,  H04N1/203 ,  H04N1/40 ,  H04N1/12 ,  H04N1/193

CPC classification number: H04N1/0402 ,  H04N1/0414 ,  H04N1/0443 ,  H04N1/12 ,  H04N1/193 ,  H04N1/203 ,  H04N1/2032 ,  H04N1/393 ,  H04N1/40056

Abstract: An image reader includes a first image reading unit that reads first image data by scanning one surface of a document at a first resolution corresponding to a magnification ratio and a predetermined first scan cycle; and a second image reading unit that accumulates light radiated from a light source and reads second image data by scanning other surface of the document at a fixed second resolution and a second scan cycle corresponding to the magnification ratio, wherein the second image reading unit controls light accumulation time of the light radiated from the light source to be constant.

Abstract translation: 图像读取器包括第一图像读取单元，其通过以对应于放大率和预定的第一扫描周期的第一分辨率扫描文档的一个表面来读取第一图像数据; 以及第二图像读取单元，其累积从光源照射的光，并且以固定的第二分辨率和对应于所述放大率的第二扫描周期扫描所述文档的其他表面并读取第二图像数据，其中所述第二图像读取单元控制光 从光源照射的光的积聚时间恒定。

公开(公告)号：US08699094B2

公开(公告)日：2014-04-15

申请号：US13677603

申请日：2012-11-15

Applicant: Yoshihisa Soeda

Inventor： Yoshihisa Soeda

IPC: H04N1/04

CPC classification number: H04N1/00 ,  H04N1/00013 ,  H04N1/00037 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00076 ,  H04N1/00079 ,  H04N1/00896 ,  H04N1/40056 ,  H04N1/407 ,  H04N2201/0081 ,  H04N2201/0094 ,  H04N2201/044

Abstract: An image reader capable of entering a power save mode for saving power consumption during standby includes: a gain amplifier; a reference white plate that is to be scanned when gain control of the gain amplifier is performed to obtain a controlled gain value; a carriage that moves to an stops at an area corresponding to the reference white plate when the image reader enters the power save mode; a gain storage section that stores the controlled gain value as a recovery parameter when the image reader enters the power save mode; and a gain setting section that sets the recovery parameter as the controlled gain value when the image reader exits the power save mode.

Abstract translation: 能够进入省电模式以节省待机时的功耗的图像读取器包括：增益放大器; 执行增益放大器的增益控制时要扫描的参考白板以获得受控增益值; 当图像读取器进入省电模式时，移动到与参考白板相对应的区域处的停止的托架; 增益存储部，其在图像读取器进入省电模式时，将受控增益值作为恢复参数存储; 以及增益设置部分，当图像读取器退出节电模式时，将恢复参数设置为受控增益值。

公开(公告)号：US20130135693A1

公开(公告)日：2013-05-30

申请号：US13677603

申请日：2012-11-15

Applicant: Yoshihisa SOEDA

Inventor： Yoshihisa SOEDA

IPC: H04N1/00

CPC classification number: H04N1/00 ,  H04N1/00013 ,  H04N1/00037 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00076 ,  H04N1/00079 ,  H04N1/00896 ,  H04N1/40056 ,  H04N1/407 ,  H04N2201/0081 ,  H04N2201/0094 ,  H04N2201/044

Abstract: An image reader capable of entering a power save mode for saving power consumption during standby includes: a gain amplifier; a reference white plate that is to be scanned when gain control of the gain amplifier is performed to obtain a controlled gain value; a carriage that moves to an stops at an area corresponding to the reference white plate when the image reader enters the power save mode; a gain storage section that stores the controlled gain value as a recovery parameter when the image reader enters the power save mode; and a gain setting section that sets the recovery parameter as the controlled gain value when the image reader exits the power save mode.

Abstract translation: 能够进入省电模式以节省待机时的功耗的图像读取器包括：增益放大器; 执行增益放大器的增益控制时要扫描的参考白板以获得受控增益值; 当图像读取器进入省电模式时，移动到与参考白板相对应的区域处的停止的托架; 增益存储部，其在图像读取器进入省电模式时，将受控增益值作为恢复参数存储; 以及增益设置部分，当图像读取器退出节电模式时，将恢复参数设置为受控增益值。