公开(公告)号：US20110175975A1

公开(公告)日：2011-07-21

申请号：US12689541

申请日：2010-01-19

Applicant: Ramakanth DESANI ,  James W. STEVENS ,  Jess R. GENTNER ,  Terri A. CLINGERMAN

Inventor： Ramakanth DESANI ,  James W. STEVENS ,  Jess R. GENTNER ,  Terri A. CLINGERMAN

IPC: B41J2/435 ,  H04L7/04

CPC classification number: H04N1/053 ,  G06K15/1219 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04784 ,  H04N2201/04794

Abstract: Systems and methods are provided for aligning a video clock with the raster output scanner start-of-scan signal in printing systems. A system and method is proposed to align the pixel clock to an asynchronous reference signal generated in the raster output scanner. The proposed system and method adjusts a phase for a static phase value while performing a dynamic phase shifting for the start-of-scan signal alignment.

Abstract translation: 提供了系统和方法，用于将视频时钟与打印系统中的光栅输出扫描器扫描扫描信号对准。 提出了一种系统和方法来将像素时钟对准在光栅输出扫描器中产生的异步参考信号。 所提出的系统和方法调整静态相位值的相位，同时对扫描信号对齐进行动态相移。

公开(公告)号：US07982424B2

公开(公告)日：2011-07-19

申请号：US12228220

申请日：2008-08-11

Applicant: Yasuhiko Yoshihisa

Inventor： Yasuhiko Yoshihisa

IPC: G05B11/42

CPC classification number: H04N1/1017 ,  H04N1/00236 ,  H04N1/0473 ,  H04N1/1026 ,  H04N1/193 ,  H04N2201/02425 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04725 ,  H04N2201/04731 ,  H04N2201/04755 ,  H04N2201/04791 ,  H04N2201/04793 ,  H04N2201/04794

Abstract: The invention provides, as an aspect thereof, an document reading apparatus that includes: a speed calculating unit that calculates a speed related to the rotation of a motor on the basis of a signal that is outputted from an encoder; and a controlling unit that calculates control amount on the basis of the speed calculated by the speed calculating unit so as to control the rotation of the motor in accordance with the calculated control amount. In the configuration of an document reading apparatus according to this aspect of the invention, the above-mentioned controlling unit controls the motor with an increase in the control amount in a case where there occurs no change in the signal that is outputted from the encoder for a certain period of time. The increase in the control amount is based on the length of time that has elapsed since the last change in the signal.

Abstract translation: 本发明的一个方面提供了一种文件读取装置，其包括：速度计算单元，其基于从编码器输出的信号计算与马达的旋转相关的速度; 以及控制单元，其基于由速度计算单元计算的速度来计算控制量，以便根据计算出的控制量来控制电动机的旋转。 在根据本发明的该方面的文件读取装置的结构中，上述控制单元在从编码器输出的信号不发生变化的情况下，随着控制量的增加而控制电动机 一段时间。 控制量的增加是基于从信号的最后一次变化起经过的时间长度的。

公开(公告)号：US07961362B2

公开(公告)日：2011-06-14

申请号：US12004474

申请日：2007-12-19

Applicant: Jianhua Xu

Inventor： Jianhua Xu

IPC: H04N1/04

CPC classification number: H04N1/113 ,  H04N2201/0468 ,  H04N2201/0471 ,  H04N2201/04781

Abstract: A method for detecting scanner phase error in a bidirectional scanned beam imager includes obtaining first and second images derived from respective first and second scan directions, comparing apparent image feature positions in the first and second images, and calculating a phase error corresponding to a difference between the apparent image feature positions. The comparison may include multiplying frequency domain transformations of the images.

Abstract translation: 一种用于检测双向扫描光束成像仪中的扫描仪相位误差的方法，包括获得从相应的第一和第二扫描方向导出的第一和第二图像，比较第一和第二图像中的视在图像特征位置，以及计算相应于 表观图像特征位置。 比较可以包括对图像的频域变换进行乘法。

公开(公告)号：US07961210B2

公开(公告)日：2011-06-14

申请号：US11842395

申请日：2007-08-21

Applicant: Ryota Kato ,  Yasuo Tamaru

Inventor： Ryota Kato ,  Yasuo Tamaru

IPC: B41J15/14 ,  B41J27/00

CPC classification number: H04N1/047 ,  H04N1/0635 ,  H04N1/1135 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

Abstract: An optical scanner used for an image-forming device to form a color image includes a plurality of photosensitive drums for superimposing a developer image formed on each of the plurality of photosensitive drums. The optical scanner includes a casing, a plurality of light sources, a deflector, an optical system, and a storage device. The plurality of light sources is provided in a one-to-one correspondence with the plurality of photosensitive drums. Each of the plurality of light source emits a laser beam. The deflector is provided in the casing for deflecting the laser beam. The optical system is provided in the casing for guiding the deflected laser beam to a corresponding one of the plurality of photosensitive drums to make the laser beam scan the corresponding one of the plurality of photosensitive drums. The storage device stores a characteristic related to the laser beam scanning the corresponding one of the photosensitive drums.

Abstract translation: 用于图像形成装置形成彩色图像的光学扫描仪包括用于叠加形成在多个感光鼓中的每一个上的显影剂图像的多个感光鼓。 光学扫描仪包括壳体，多个光源，偏转器，光学系统和存储装置。 多个光源与多个感光鼓一一对应地设置。 多个光源中的每一个发射激光束。 偏转器设置在壳体中以偏转激光束。 光学系统设置在壳体中，用于将偏转的激光束引导到多个感光鼓中的对应的一个感光鼓，以使激光束扫描多个感光鼓中的对应的一个感光鼓。 存储装置存储与激光束扫描对应的一个感光鼓有关的特性。

公开(公告)号：US07920305B2

公开(公告)日：2011-04-05

申请号：US11882691

申请日：2007-08-03

Applicant: Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Jun Tanabe

Inventor： Masaaki Ishida ,  Yasuhiro Nihei ,  Atsufumi Omori ,  Jun Tanabe

IPC: H04N1/04

CPC classification number: H04N1/40037 ,  G06K15/1219 ,  G06K15/1261 ,  H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04787 ,  H04N2201/04794

Abstract: An optical scanning device of the invention includes: n-odd (n≧2) light sources disposed at different positions at least in a sub scanning direction; a light source driving control part configured to control a light emitting state of the light source; and a sub-scanning pixel position detecting part configured to depict one pixel with m-odd (n≧m≧2) light sources of the n-odd (n≧2) light sources and to detect a deviation in position of the one pixel in a sub scanning direction, wherein the light source driving control part is configured to correct the deviation in position of the one pixel in the sub scanning direction at a resolution equal to or higher than a density of the pixel, depicted with the m-odd light sources, by controlling the light emitting state of the m-odd light sources on the basis of a result of detection with the sub-scanning pixel position detecting part.

Abstract translation: 本发明的光学扫描装置包括：至少在副扫描方向上设置在不同位置的n奇（n≥2）个光源; 被配置为控制所述光源的发光状态的光源驱动控制部; 以及副扫描像素位置检测部，其被配置为描绘所述n奇数（n≥2）个光源的m奇数（n≥m≥2）个光源的一个像素，并且检测所述一个像素的位置偏差 在副扫描方向上，其中光源驱动控制部被配置为以像素的密度等于或高于像素的密度来校正副扫描方向上的一个像素的位置偏移，以m奇数 基于利用副扫描像素位置检测部分的检测结果控制m个奇数光源的发光状态。

公开(公告)号：US07903134B2

公开(公告)日：2011-03-08

申请号：US12038526

申请日：2008-02-27

Applicant: Akihisa Itabashi ,  Satoru Itoh ,  Mitsuo Suzuki

Inventor： Akihisa Itabashi ,  Satoru Itoh ,  Mitsuo Suzuki

IPC: B41J2/435 ,  B41J2/47

CPC classification number: H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N1/506 ,  H04N2201/0471 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04749

Abstract: Each light detecting sensor, which is installed corresponding to each photoconductor drum, and to which the plurality of light beams passing through the scanning optical system are incident while moving in a main scanning direction includes a light-receiving device having a first light-receiving unit and a second light-receiving unit, which have different intervals from each other in the main scanning direction depending on a position of a sub-scanning direction, all the sizes of the first and the second light-receiving units being sizes covering an overall virtual area in a quadrangular shape surrounding a plurality of light spots in the light-receiving surface.

Abstract translation: 对应于每个感光鼓安装的每个光检测传感器并且通过扫描光学系统的多个光束在主扫描方向上移动时入射包括具有第一光接收单元的光接收装置 以及第二光接收单元，其根据副扫描方向的位置在主扫描方向上具有彼此不同的间隔，所述第一和第二光接收单元的所有尺寸都是覆盖整个虚拟 围绕光接收表面中的多个光点的四边形的区域。

公开(公告)号：US20110032323A1

公开(公告)日：2011-02-10

申请号：US12845368

申请日：2010-07-28

Applicant: Hidetoshi YAMASHITA ,  Norihiro Yamamoto

Inventor： Hidetoshi YAMASHITA ,  Norihiro Yamamoto

IPC: B41J2/435

CPC classification number: H04N1/1135 ,  H04N1/06 ,  H04N1/40056 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04744

Abstract: An image forming apparatus includes a light source that emits light beam; an illumination-current generating unit that generates an illumination current that causes the light source to emit the light beam; a deflecting optical unit, thereby forming a light spot and scanning the scanned surface; a detecting unit that detects a scanning position of the light spot on the scanned surface; a control unit that calculates a relation between a value of the illumination current and an intensity of light based on a plurality of intensities of emitted light, each intensity of the plurality of intensities being close to or equal to a prescribed light intensity, and causes the illumination-current generating unit to generate the illumination current based on the relation.

Abstract translation: 图像形成装置包括发射光束的光源; 照明电流产生单元，其产生使光源发光的照明电流; 偏转光学单元，从而形成光点并扫描扫描表面; 检测单元，其检测所述扫描面上的所述光点的扫描位置; 控制单元，其基于多个发光强度来计算照明电流的值与光强度之间的关系，所述多个强度的每个强度接近或等于规定的光强度，并且使得 照明电流产生单元，用于基于该关系产生照明电流。

公开(公告)号：US07845748B2

公开(公告)日：2010-12-07

申请号：US12041496

申请日：2008-03-03

Applicant: James Mealy ,  James D. Bledsoe ,  Todd A. McClelland ,  Gregory F. Carlson ,  Gopi Paramesh ,  Asher Simmons

Inventor： James Mealy ,  James D. Bledsoe ,  Todd A. McClelland ,  Gregory F. Carlson ,  Gopi Paramesh ,  Asher Simmons

IPC: B41J29/38

CPC classification number: H04N1/032 ,  B41J3/36 ,  H04N1/0461 ,  H04N1/047 ,  H04N1/107 ,  H04N1/1077 ,  H04N2201/0414 ,  H04N2201/0471 ,  H04N2201/04737 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: Systems, apparatuses, and methods for a handheld image translation device are described herein. The handheld image translation device may include an image capture module to capture surface images of a medium and a positioning module to determine positioning information based at least in part on navigational measurements and/or the captured surface images. A print module of the handheld image translation device may cause print forming substances to be deposited based at least in part on the positioning information. Other embodiments may be described and claimed.

Abstract translation: 本文描述了用于手持式图像翻译装置的系统，装置和方法。 手持式图像翻译装置可以包括用于捕获介质的表面图像和定位模块的图像捕获模块，以至少部分地基于导航测量和/或所捕获的表面图像来确定定位信息。 手持式图像翻译装置的打印模块可以至少部分地基于定位信息来使得印刷物质被沉积。 可以描述和要求保护其他实施例。

公开(公告)号：US20100302553A1

公开(公告)日：2010-12-02

申请号：US12772415

申请日：2010-05-03

Applicant: David J. Mickan ,  Eric W. Westerfield ,  Daniel E. Pawtey

Inventor： David J. Mickan ,  Eric W. Westerfield ,  Daniel E. Pawtey

IPC: G01B11/14

CPC classification number: B41J2/471 ,  G06K15/1219 ,  H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04713 ,  H04N2201/04732 ,  H04N2201/04744

Abstract: In an electrophotographic (EP) device, methods and apparatus include determining a delay of one or more sensors (hsync) to accurately know when to start the process of scanning latent images. In one aspect, the sensor includes a leading and trailing edge defined along a direction of laser beam scan travel. Determining the delay includes learning a position of a laser beam on the sensor at a time when a controller connected to the sensor receives a signal from the sensor indicating the sensor is being sufficiently impinged upon by the laser beam. It also includes learning a latest possible position of the laser beam along the direction of laser scan travel where the laser beam can be turned on and still have the sensor assert a signal indicating it has been sufficiently impinged upon by the laser beam. Bi-directionally scanning EP devices are also disclosed, including controllers, photoconductors, sensors, etc.

Abstract translation: 在电子照相（EP）装置中，方法和装置包括确定一个或多个传感器（hsync）的延迟，以准确地知道何时开始扫描潜像的处理。 在一个方面，传感器包括沿着激光束扫描行进方向限定的前缘和后缘。 确定延迟包括在连接到传感器的控制器接收到来自传感器的指示传感器被激光束充分照射的信号时，在传感器上学习激光束的位置。 它还包括沿着激光扫描行程的方向学习激光束的最新可能位置，激光束可以被打开并且仍然具有传感器断言表示其被激光束充分地照射的信号。 还公开了双向扫描EP装置，包括控制器，感光体，传感器等

公开(公告)号：US07830407B2

公开(公告)日：2010-11-09

申请号：US11637742

申请日：2006-12-13

Applicant: Yasuo Tamaru ,  Ryota Kato

Inventor： Yasuo Tamaru ,  Ryota Kato

IPC: B41J2/47 ,  B41J2/435

CPC classification number: G03G15/011 ,  G03G2215/0119 ,  G03G2215/0158 ,  H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04767 ,  H04N2201/04793 ,  H04N2201/04794

Abstract: In an image forming apparatus, a polygon mirror, a plurality of laser generators, a first sensor, and a second sensor are disposed at a resin frame. A laser beam outputted from each of the laser generators and deflected by a deflection surface is irradiated onto a surface of a photosensitive drum to scan the surface over a scan part. The first sensor is disposed at a first position to detect a laser beam deflected by the deflection surface. The second sensor is disposed at a second position to detect a laser beam deflected by the deflection surface. A storage unit stores correspondence information indicating shift of the scan part from a reference scan part in relation to time difference between detections of the laser beam by the first and second sensor. A controller controls the laser generator to output a laser beam based on the shift of the scan part.

Abstract translation: 在图像形成装置中，在树脂框架上设置多面镜，多个激光发生器，第一传感器和第二传感器。 从每个激光发生器输出并由偏转表面偏转的激光束被照射到感光鼓的表面上以扫描扫描部分上的表面。 第一传感器设置在第一位置以检测由偏转表面偏转的激光束。 第二传感器设置在第二位置以检测由偏转表面偏转的激光束。 存储单元存储指示从第一和第二传感器相对于基准扫描部分的扫描部分的移动相对于激光束的检测之间的时间差的对应信息。 控制器控制激光发生器基于扫描部分的偏移输出激光束。