公开(公告)号：US06633415B1

公开(公告)日：2003-10-14

申请号：US09533747

申请日：2000-03-23

Applicant: Shoji Arafune ,  Tsutomu Takayama

Inventor： Shoji Arafune ,  Tsutomu Takayama

IPC: H04N104

CPC classification number: H04N1/1013 ,  H04N2201/0458

Abstract: An image input apparatus for reading an original image by moving an optical unit with a motor used as a drive source is arranged such that, in repeatedly reading the original image from one and the same reading position with the optical unit, information on a start position at which a preceding round of reading has begun and a driving state of the motor obtained at that time is stored by a system controller, and the amount of moving the optical unit backward for the repeated reading is decided on the basis of the information stored. The arrangement enhances the repeatability of reading in the sub-scanning direction and image input can be made with a better resolution than the intrinsic resolution of the image input apparatus.

Abstract translation: 一种用于通过使用用作驱动源的电动机移动光学单元来读取原始图像的图像输入装置被布置成使得在与光学单元重复地从同一读取位置读取原始图像时，关于起始位置的信息 其中前一轮的读数已经开始，并且由此获得的电动机的驱动状态由系统控制器存储，并且基于存储的信息来决定向后移动光学单元以进行重复读取的量。 该装置增强了在副扫描方向读取的重复性，并且图像输入可以以比图像输入装置的固有分辨率更好的分辨率进行。

公开(公告)号：US06631015B2

公开(公告)日：2003-10-07

申请号：US09930603

申请日：2001-08-15

Applicant: Geoffrey B. Rhoads

Inventor： Geoffrey B. Rhoads

IPC: H04N104

CPC classification number: H04N1/04 ,  H04N1/06 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/0458 ,  H04N2201/046

Abstract: An additional motion is introduced into a scanning operation. This additional motion is in addition to the motion that is inherent in any document scanning operation. For example, in a flatbed scanner a linear array of scanning devices is positioned across the document in a first or “x” direction and this array is moved across the document in a perpendicular or “y” direction. In a flatbed scanner the position of the scanning devices are fixed in the “x” direction. In a drum scanner a light beam moves across the document in an “x” direction and the document is moved in the “y” direction. The light reflected from the document is directed to a fixed photoreceptor. With the present invention an additional vibratory motion is introduced into the scanning process. With a flatbed scanner the array of detector devices is moved or vibrated. The vibratory motion can for example be in the “x” direction. With a drum scanner the photoreceptor is moved or vibrated. For example the photodetector can be moved or vibrated in the “x” direction. The amount and direction of the vibratory movement can vary up to about one half the distance between units in the scanner's resolution (i.e. one half a pixel). If one is trying to eliminate Moiré patterns the vibratory movement can be a pseudo random series of movements. If one is trying to introduce a special pattern into the document or to otherwise create special effects, various other type of motion can be used. Movement of the CCD array in a flatbed scanner or movement of the photoreceptor in a drum scanner can be done by a simple piezo electric transducer or by a simple mechanical cam.

公开(公告)号：US20030156300A1

公开(公告)日：2003-08-21

申请号：US10078891

申请日：2002-02-19

Inventor： Bruce L. Johnson

IPC: H04N001/405 ,  G06K015/00

CPC classification number: H04N1/40075 ,  H04N1/1013 ,  H04N2201/0458

Abstract: A system for scanning a medium having an axis includes a housing and an optical imaging head assembly mounted in the housing and having an assembly axis. The assembly axis of the optical imaging head assembly is oriented at an acute angle with respect to the axis of the medium.

Abstract translation: 用于扫描具有轴的介质的系统包括壳体和安装在壳体中并具有组件轴线的光学成像头组件。 光学成像头组件的组装轴相对于介质的轴线成锐角。

公开(公告)号：US20030142366A1

公开(公告)日：2003-07-31

申请号：US10055983

申请日：2002-01-28

Inventor： Chung-Chih Chang

IPC: H04N001/36

CPC classification number: H04N1/0402 ,  H04N1/04 ,  H04N1/0411 ,  H04N1/0414 ,  H04N1/36 ,  H04N2201/0458

Abstract: The present invention relates to a device applied to scaling factor of horizontal scan of a scanner and a method thereof. The present invention lets signals be processed by a multiplexer, a shifter, and an adder to achieve the above function, or lets signals be processed by a plurality of shifters and a plurality of adders to achieve the above function. Because a divider or a ROM occupying a too large area in the prior art is not required, the present invention can effectively reduce the occupied area, increase the scanning speed, and enhance the image quality of a scanner.

Abstract translation: 本发明涉及应用于扫描仪的水平扫描缩放因子的装置及其方法。 本发明通过多路复用器，移位器和加法器对信号进行处理以实现上述功能，或者使信号由多个移位器和多个加法器来处理以实现上述功能。 由于不需要在现有技术中占据太大面积的分频器或ROM，因此本发明可以有效地减少占用面积，增加扫描速度并提高扫描仪的图像质量。

公开(公告)号：US20030128407A1

公开(公告)日：2003-07-10

申请号：US10299823

申请日：2002-11-20

Applicant: LITE-ON TECHNOLOGY CORPORATION

Inventor： Hsin-Tang Chien

IPC: H04N001/04

CPC classification number: H04N1/04 ,  H04N2201/0458

Abstract: The present invention provides a method and apparatus for increasing a scanning resolution. The present invention is applied in optics input equipments, such as scanners and multi-function peripherals. The scanning method projects a light to an original to produce a first image and then focuses the first image with a magnification M to generate a second image The second image is reflected from reflectors to the scanning module to process the scanning. The resolution of the image scanned by the scanning module is M times of a native resolution of the scanning module.

Abstract translation: 本发明提供了一种用于增加扫描分辨率的方法和装置。 本发明应用于诸如扫描仪和多功能外围设备的光学输入设备中。 扫描方法将光投射到原稿以产生第一图像，然后用放大倍数M对第一图像进行聚焦以产生第二图像。第二图像从反射器反射到扫描模块以处理扫描。 由扫描模块扫描的图像的分辨率是扫描模块的原始分辨率的M倍。

公开(公告)号：US06567188B1

公开(公告)日：2003-05-20

申请号：US09449349

申请日：1999-11-24

Applicant: David M. Thompson ,  Ed C. Savage ,  John I. Howard

Inventor： David M. Thompson ,  Ed C. Savage ,  John I. Howard

IPC: H04N140

CPC classification number: H04N1/04 ,  H04N1/1017 ,  H04N1/1215 ,  H04N1/193 ,  H04N1/401 ,  H04N2201/044 ,  H04N2201/0458

Abstract: A non-coplanar calibration system exists when the calibration reference plane is offset from a document plane. Due to size, shape, or other factors attributable to a scanning system, it may not be feasible to place the calibration reference plane on the document plane, i.e., the platen glass. Lamp-fall off represents an effect that occurs as you get closer to the ends of the lamp and light energy is diminished. The profile difference between the calibration plane and the document plane in a non-coplanar system can be corrected for on a pixel by pixel basis. Illumination fall off due to the change in the distance from calibration plane to the document plane represents the main effect that must be corrected for. Also, the platen glass must be taken into account. A single calibration correction factor can be applied to each CCD element in a scanning system to account for the shift from calibration plane to document plane. Or a lumped parameter single calibration correction factor comprised of the average profile shift and the illumination shift can be used.

Abstract translation: 当校准参考平面偏离原稿平面时，存在非共面校准系统。 由于归因于扫描系统的尺寸，形状或其他因素，将校准参考平面放置在原稿平面（即稿台玻璃）上可能是不可行的。 灯掉落表示当您越来越接近灯的端点时发生的效果，光能量减弱。 在非共面系统中的校准平面和原稿平面之间的轮廓差异可以逐个像素地校正。 由于从校准平面到文件平面的距离的变化，照明脱落代表必须纠正的主要影响。 此外，必须考虑稿台玻璃。 单个校准因子可以应用于扫描系统中的每个CCD元件，以考虑从校准平面到文稿平面的偏移。 或者可以使用由平均轮廓偏移和照明偏移组成的集总参数单校准因子。

公开(公告)号：US20030081268A1

公开(公告)日：2003-05-01

申请号：US10271560

申请日：2002-10-17

Inventor： Taiya Hirayama

IPC: H04N001/04

CPC classification number: H04N1/1026 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/0434 ,  H04N2201/0456 ,  H04N2201/0458

Abstract: An image reading apparatus in which a CIS is pressed by springs to cause abutment members to abut the lower surface of an original support glass, wherein the abutment members are arranged within the main scanning reading range of the CIS and, more specifically, at positions where the deflection amount of the original support glass with respect to the end portions of the main scanning reading range is approximately null of the maximum deflection amount. Thus, when the original support glass is deflected, the CIS is pressed down against the spring force by approximately null of the maximum deflection amount in the main scanning reading range of the original support glass from the position where the original table has no deflection, whereby the optimum focal position of the CIS is downwardly shifted and as the result, the upper surface of the original support glass constituting the original surface is retained within the effective focus range of the CIS over the entire main scanning reading range, thereby making it possible to perform high quality image reading.

Abstract translation: 一种图像读取装置，其中，通过弹簧对CIS进行按压以使抵接构件邻接原始支撑玻璃的下表面，其中抵接构件布置在CIS的主扫描读取范围内，更具体地， 原始支撑玻璃相对于主扫描读取范围的端部的偏转量约为最大偏转量的1/2。 因此，当原始支撑玻璃偏转时，CIS从原始支撑玻璃板的主扫描读取范围的原始台没有偏转的位置抵抗弹簧力被压下大约1/2的最大偏转量，由此 CIS的最佳焦点位置向下移动，结果，构成原始表面的原始支撑玻璃的上表面在整个主扫描读取范围内保持在CIS的有效对焦范围内，从而可以 执行高质量的图像阅读。

公开(公告)号：US20030030854A1

公开(公告)日：2003-02-13

申请号：US09927834

申请日：2001-08-10

Inventor： Yin-Chun Huang ,  Chih-Wen Huang

IPC: H04N001/04

CPC classification number: H04N1/0057 ,  H04N2201/044 ,  H04N2201/0458 ,  H04N2201/04715

Abstract: A focusing apparatus of an automatic document feeder, having the automatic document feeder has a scanning zone for an optical chassis to retrieve an image of a document. The focusing apparatus of automatic document feeder comprises at least one focusing chart, which is disposed at a location corresponding to the scanning zone. The focusing chart is comprised of a plurality of focus detecting elements and capable of automatic focusing by the optical chassis.

Abstract translation: 具有自动文件馈送器的自动文件馈送器的聚焦设备具有用于光学机架的扫描区域以检索文档的图像。 自动送纸器的聚焦装置包括至少一个聚焦图，该对焦图被设置在与扫描区相对应的位置处。 聚焦图由多个焦点检测元件组成并且能够由光学底盘自动聚焦。

公开(公告)号：US06516101B1

公开(公告)日：2003-02-04

申请号：US08948092

申请日：1997-10-09

Applicant: Jenn-Tsair Tsai

Inventor： Jenn-Tsair Tsai

IPC: G06K920

CPC classification number: H04N1/40056 ,  H04N1/4076 ,  H04N2201/0458

Abstract: An image scanning device having an image data correction function and a method for correcting image data of a scanned object are shown. The image scanning device for realizing image data of a scanned object includes a light source for providing a source light for the scanned object in order to obtain an optical image signal, a photo-detector for detecting and recording a scanning light intensity of the source light, and optical signal processing device for receiving and converting the optical image signal into an electronic image signal, the optical signal processing device being electrically connected to the photo-detector for reading the scanning light intensity of the source light, and adjusting the electronic image signal according to the scanning light intensity of the source light so as to realize the image data of the scanned object. The scanning operation of the image scanning device can be performed without warming up the light source.

Abstract translation: 示出了具有图像数据校正功能的图像扫描装置和用于校正扫描对象的图像数据的方法。 用于实现扫描对象的图像数据的图像扫描装置包括：用于为扫描对象提供源光以获得光学图像信号的光源;用于检测和记录源光的扫描光强度的光检测器 以及光信号处理装置，用于将光学图像信号接收并转换为电子图像信号，光信号处理装置电连接到光检测器，用于读取源光的扫描光强度，并且调整电子图像信号 根据源光的扫描光强度，实现扫描对象的图像数据。 可以在不预热光源的情况下执行图像扫描装置的扫描操作。

公开(公告)号：US20020080429A1

公开(公告)日：2002-06-27

申请号：US10005048

申请日：2001-12-03

Inventor： Tsunao Honbo ,  Katsuhiro Ishido

IPC: H04N001/46

CPC classification number: H04N1/00018 ,  H04N1/00037 ,  H04N1/00063 ,  H04N1/00087 ,  H04N1/1013 ,  H04N1/1215 ,  H04N1/193 ,  H04N2201/0448 ,  H04N2201/0458

Abstract: Disclosed is an image reading apparatus for moving a document reading unit to a point below a document feeder that feeds documents, and emitting light from a light source of the document reading unit toward a feed roller of the document feeder, whereby light reflected from a document that travels between the feed roller and the light source is sensed by the document feeding unit to thereby read an image on the document. The apparatus includes a photoelectronic converter for outputting an electric signal that conforms to amount of incident light, and a reading position setting unit for moving the document reading unit, irradiating the feed roller with light from the light source at each position to which the document reading unit is moved, causing the photoelectronic converter to output an electric signal that conforms to amount of light reflected from the feed roller at each position, detecting a range in a sub-scan direction over which this electric signal exceeds a predetermined threshold value, and setting a position at the center of this range as a reading position.

Abstract translation: 公开了一种图像读取装置，用于将文件读取单元移动到馈送文件的文件馈送器下方的点，并将文档读取单元的光源的光朝向文件馈送器的馈送辊发射，由此从文档反射的光 在馈送辊和光源之间传播的信息由文件馈送单元感测，从而读取文档上的图像。 该装置包括用于输出符合入射光量的电信号的光电转换器和用于移动文件读取单元的读取位置设置单元，在文档读取的每个位置处对来自光源的光进行照射， 使光电转换器输出符合从每个位置反馈的进给辊的光量的电信号，检测该电信号超过预定阈值的副扫描方向上的范围，并设定 在该范围的中心位置作为阅读位置。