公开(公告)号：US20030184814A1

公开(公告)日：2003-10-02

申请号：US10383679

申请日：2003-03-10

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Yusuke Hashizume

IPC: H04N001/00 ,  H04N001/04

CPC classification number: H04N1/00885 ,  H04N1/00708 ,  H04N1/0074 ,  H04N1/00891 ,  H04N1/00896 ,  H04N1/00901 ,  H04N1/00904

Abstract: In an image-reading apparatus, the size of a document placed at a predetermined position is sensed by a document size sensor, an image is read from the document in the document size sensed, and image data indicative of the read image is subjected to certain processing executed by an image processing section. A power supply section is provided which includes a first power supply which supplies power to the image processing section, and a second power supply which supplies power to the document size sensor. The second power supply is supplied with power from the first power supply and can be turned on and off independently of turn-on and turn-off of the first power supply. A power supply control section is also provided which controls turn-on and turn-off of the second power supply.

Abstract translation: 在图像读取装置中，放置在预定位置的文件尺寸由文件尺寸传感器感测，在所检测到的文档尺寸中从文档读取图像，并且指示所读取的图像的图像数据被确定 由图像处理部执行的处理。 提供电源部分，其包括向图像处理部分供电的第一电源和向文档尺寸传感器供电的第二电源。 第二个电源由第一个电源提供电源，可独立于第一个电源的开启和关闭而导通和关断。 还提供控制第二电源的接通和断开的电源控制部分。

公开(公告)号：US20040174575A1

公开(公告)日：2004-09-09

申请号：US10788350

申请日：2004-03-01

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Naoaki Ide ,  Yusuke Hashizume

IPC: H04N001/40 ,  H04N001/46

CPC classification number: H04N1/401 ,  H04N1/46 ,  H04N1/486

Abstract: An image reading apparatus having a color line sensor and a monochromatic line sensor starts to read on the basis of the color reading start position when reading the image of a document in color and starts to read on the basis of the monochromatic reading start position when reading the image of a document in monochrome.

Abstract translation: 具有彩色线传感器和单色线传感器的图像读取装置，当读取彩色文件的图像时，基于彩色读取开始位置开始读取，并且在读取时基于单色读取开始位置开始读取 单色文件的图像。

公开(公告)号：US20020126326A1

公开(公告)日：2002-09-12

申请号：US09803038

申请日：2001-03-12

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Yusuke Hashizume

IPC: H04N001/46

CPC classification number: H04N1/1026 ,  H04N1/00525 ,  H04N1/0464 ,  H04N1/1013 ,  H04N1/1056 ,  H04N1/12 ,  H04N1/193 ,  H04N1/401 ,  H04N2201/044

Abstract: The image reader according to the present invention is able to set the accurate threshold level free of influence of dirt and dust even when the reference nullwhitenull level is requested for shading correction during the acceleration while the carriage is being accelerated without increasing the averaging frequency when the reflected light from the white board is read for shading correction. In addition, because the distance between the head end of the transparent glass and the home position as well as the distance between the home position and the reading window are shortened, the size of the image reader is reduced.

Abstract translation: 根据本发明的图像读取器能够设置准确的阈值水平，即使当在加速时加速期间请求参考“白色”电平用于阴影校正而不增加平均频率时，灰尘和灰尘也不受影响 当来自白板的反射光被读取用于阴影校正时。 此外，由于透明玻璃的头端与原始位置之间的距离以及原始位置和读取窗口之间的距离被缩短，所以图像读取器的尺寸减小。

公开(公告)号：US20040233479A1

公开(公告)日：2004-11-25

申请号：US10878061

申请日：2004-06-29

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Yusuke Hashizume

IPC: H04N001/04 ,  H04N001/10 ,  H04N001/40

CPC classification number: H04N1/1026 ,  H04N1/00525 ,  H04N1/0464 ,  H04N1/1013 ,  H04N1/1056 ,  H04N1/12 ,  H04N1/193 ,  H04N1/401 ,  H04N2201/044

Abstract: The image reader according to the present invention is able to set the accurate threshold level free of influence of dirt and dust even when the reference nullwhitenull level is requested for shading correction during the acceleration while the carriage is being accelerated without increasing the averaging frequency when the reflected light from the white board is read for shading correction. In addition, because the distance between the head end of the transparent glass and the home position as well as the distance between the home position and the reading window are shortened, the size of the image reader is reduced.

Abstract translation: 根据本发明的图像读取器能够设置准确的阈值水平，即使当在加速时加速期间请求参考“白色”电平用于阴影校正而不增加平均频率时，灰尘和灰尘也不受影响 当来自白板的反射光被读取用于阴影校正时。 此外，由于透明玻璃的头端与原始位置之间的距离以及原始位置和读取窗口之间的距离被缩短，所以图像读取器的尺寸减小。

公开(公告)号：US20040169895A1

公开(公告)日：2004-09-02

申请号：US10787077

申请日：2004-02-27

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Yusuke Hashizume ,  Sueo Ueno

IPC: H04N009/07 ,  H04N001/46

CPC classification number: H04N1/00806 ,  H04N1/00822 ,  H04N1/486 ,  H04N5/23212

Abstract: An image reading apparatus has a photoelectric converting unit composed of a color line sensor and a monochromatic line sensor. In a color read mode, the image reading apparatus starts reading a document image at a color read start position. In a monochromatic read mode, the image reading apparatus starts reading a document image at a monochromatic read start position.

Abstract translation: 图像读取装置具有由彩色线传感器和单色线传感器构成的光电转换单元。 在彩色读取模式中，图像读取装置开始在彩色读取开始位置读取文档图像。 在单色读取模式中，图像读取装置开始在单色读取开始位置读取文档图像。

公开(公告)号：US20020118405A1

公开(公告)日：2002-08-29

申请号：US09791768

申请日：2001-02-26

Applicant: TOSHIBA TEC KABUSHIKI KAISHA.

Inventor： Yusuke Hashizume ,  Takaharu Ouchi

IPC: H04N001/46

CPC classification number: H04N1/1056 ,  H04N1/0473 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/0462 ,  H04N2201/04755

Abstract: The image scanning apparatus capable of reading an image by scanning a carriage equipped with a light source, mirrors and the like in a sub-scanning direction of an original document O, is provided, and in this apparatus, the stepping motor is used to drive the carriage, and an open loop control and switching of the exciter are carried out. With this structure, the scanning speed of the carriage can be increased to be higher than the set speed once, and then reduced to the set speed, thus making it possible to shorten the time for the carriage to move from the home position to the top of the document to be scanned, while suppressing the load on the CPU.

Abstract translation: 提供了能够通过在原稿O的副扫描方向上扫描配备有光源，镜子等的托架来读取图像的图像扫描装置，并且在该装置中，使用步进电机驱动 执行滑架以及励磁机的开环控制和切换。 利用这种结构，可以将滑架的扫描速度提高到高于设定速度一次，然后减小到设定速度，从而可以缩短滑架从起始位置移动到顶部的时间 的文件，同时抑制CPU上的负载。

公开(公告)号：US20040165234A1

公开(公告)日：2004-08-26

申请号：US10370732

申请日：2003-02-24

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Yusuke Hashizume

IPC: H04N001/48 ,  H04N001/04 ,  H04N001/40

CPC classification number: H04N1/401 ,  H04N1/486

Abstract: A sheet image scanner of the present invention has plural image sensors to output electric signals by detecting optical image data that are obtained by applying a light from a light source to documents, amplifiers to amplify outputs from the plural image sensors, and a peak detection processing unit to detect a peak value of sensitivity of at least one of the plural image sensors and set a gain value for each of amplifiers for the plural image sensors using the detected peak value.

Abstract translation: 本发明的片材图像扫描器具有多个图像传感器，用于通过检测通过将来自光源的光施加到文档，放大器来放大来自多个图像传感器的输出而获得的光学图像数据来输出电信号，以及峰值检测处理 单元，用于检测多个图像传感器中的至少一个的灵敏度的峰值，并且使用检测到的峰值来设置多个图像传感器的每个放大器的增益值。

公开(公告)号：US20030063328A1

公开(公告)日：2003-04-03

申请号：US09964635

申请日：2001-09-28

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Yusuke Hashizume

IPC: H04N001/04

CPC classification number: H04N1/0405 ,  H04N1/0402 ,  H04N1/0455 ,  H04N1/047 ,  H04N1/1013 ,  H04N1/19 ,  H04N1/393 ,  H04N2201/02425 ,  H04N2201/02439 ,  H04N2201/04755 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: An image reading device reads an image of an original mounted on an original mounting base by using an optical scanning unit which is subjected to acceleration drive along the original mounting base until a velocity according to a reading magnification is obtained and then scanned by uniform velocity drive. A stepping motor moves the optical scanning unit. A reading magnification acceptance portion accepts a reading magnification of an image of the original mounted on the original mounting base. A motor drive control portion is used for control a drive electric current of the stepping motor, obliquely increases a set electric current during acceleration drive every velocity that the optical scanning unit reaches by a pulse number according to a reading magnification accepted by the reading magnification acceptance portion, and changes the set electric current value in accordance with the reading magnification so as to provide a characteristic for lowering the set electric current value at the time of shifting to uniform velocity drive. A photoelectric conversion portion converts a quantity of reflected light when the original on the original mounting base is optically scanned by the optical scanning unit moved by the stepping motor into an electrical signal.

Abstract translation: 图像读取装置通过使用沿着原始安装基座进行加速驱动的光学扫描单元读取安装在原始安装基座上的原稿的图像，直到获得根据读取倍率的速度，然后通过均匀的速度驱动扫描 。 步进电机移动光学扫描单元。 读取倍率接受部分接受安装在原始安装基座上的原稿的图像的读取倍率。 电动机驱动控制部分用于控制步进电动机的驱动电流，根据读取放大率接收所接受的读取倍率，斜视增加加速驱动期间光学扫描单元达到的每个速度的设定电流 并根据读取倍率改变设定电流值，以提供在转换到均匀速度驱动时降低设定电流值的特性。 当原稿安装基座上的原稿由步进电机移动的光学扫描单元进行光学扫描时，光电转换部分将反射光量转换为电信号。

公开(公告)号：US20020191230A1

公开(公告)日：2002-12-19

申请号：US09749549

申请日：2001-04-04

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Takaharu Ouchi ,  Yusuke Hashizume

IPC: H04N001/04

CPC classification number: H04N1/00002 ,  H04N1/00013 ,  H04N1/00018 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00082 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/046

Abstract: An image reader of the present invention comprises a fluctuation detector that can be connected to the external equipment by means of an image data input-output section, and can subject image data, continuous in a first direction and outputted as image information on a test chart is photoelectrically converted by means of a CCD sensor when a mirror set or the test chart is moved in the first direction, to Fourier conversion, thereby obtaining the frequency of a fluctuation of the obtained image data and a maximum value of the amplitude thereof. If the obtained maximum value of the fluctuation amplitude is greater than a given value, the fluctuation detector is used to compare the frequency of the fluctuation and the natural frequency of a drive motor for generating driving force for moving the mirror set or the image. If the fluctuation frequency and the natural frequency are not equal, the value of current supplied to the drive motor is increased.

Abstract translation: 本发明的图像读取装置包括：波动检测器，其能够通过图像数据输入输出部连接到外部设备，并且可以将图像数据沿第一方向连续地作为图像信息输出到测试图上 当反射镜组或测试图沿​​第一方向移动时，通过CCD传感器进行光电转换，进行傅里叶变换，从而获得所获得的图像数据的波动频率和其幅度的最大值。 如果获得的波动幅度的最大值大于给定值，则波动检测器用于比较用于产生用于移动镜像组或图像的驱动力的驱动马达的波动频率和固有频率。 如果波动频率和固有频率不相等，则提供给驱动马达的电流值增加。