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1. 发明授权

US06381043B1 Device used in image scanner for quickly and precisely determining scan start point and improving scanning quality 有权
标题翻译：用于图像扫描仪的设备可快速，准确地确定扫描起点，并提高扫描质量
公开(公告)号：US06381043B1
公开(公告)日：2002-04-30
申请号：US09275507
申请日：1999-03-24
申请人： Jenn-Tsair Tsai , Bill Chen
发明人： Jenn-Tsair Tsai , Bill Chen
IPC分类号： H04N104
CPC分类号： H04N1/047 , H04N1/1017 , H04N1/193 , H04N2201/04703 , H04N2201/0472 , H04N2201/04729 , H04N2201/04731 , H04N2201/04732 , H04N2201/04749
摘要： A device for quickly and precisely determining a scan start point and improving scanning quality for an image scanner is disclosed. The image scanner includes a photo-processing device and a scanning platform for placing thereon a document to be scanned. The scanning platform is printed with a background region and two color blocks. The two color blocks are separately enclosed by the background region and are of different color from the color of the background region. The first color block has a first specified point therein being a predetermined shift to the scan start point along a specific direction. The second block has a second specified point corresponding to the first specified point in position. The photo-processing device moves a predetermined distance L0 from the home position to a pre-scan position overlapping with the two color blocks by four reference points, read the coordinates of the four reference points, then moves a calculated distance L1 from the pre-scan position to the first specified point, and moves another predetermined distance L2 from the specified point to the scan start point along the specific direction to start scanning. The distance L1 can be automatically adjusted to cover the installation error of the photo-processing device. According to the coordinates of the four reference points, the coordinates of the two specified points can be calculated, thereby realizing a deflection rate and/or an amplification error of a scanning result. For another image scanner disclosed herein, the movement of the distance L0 can be omitted by having the color blocks located at the home position which serves as the pre-scan position.
摘要翻译：公开了一种用于快速且精确地确定扫描起始点并提高图像扫描仪的扫描质量的装置。图像扫描仪包括照相处理装置和用于放置待扫描文件的扫描平台。扫描平台印有背景区域和两个颜色块。两个颜色块分别由背景区域包围，并且与背景区域的颜色不同。第一颜色块在其中具有沿着特定方向的扫描开始点的预定移位的第一指定点。第二块具有与第一指定点对应的第二指定点。照相处理装置将预定距离L0从初始位置移动到与两个颜色块重叠的预扫描位置四个参考点，读取四个参考点的坐标，然后从预处理装置移动计算出的距离L1，将扫描位置移动到第一指定点，并且沿着特定方向将另一预定距离L2从指定点移动到扫描开始点以开始扫描。可以自动调整距离L1以覆盖照相处理设备的安装错误。根据四个参考点的坐标，可以计算两个指定点的坐标，从而实现扫描结果的偏转率和/或放大误差。对于本文公开的另一图像扫描仪，可以通过使颜色块位于用作预扫描位置的原始位置来省略距离L0的移动。

2. 发明授权

US06188801B1 Method and apparatus for automatic image calibration for an optical scanner 失效
标题翻译：用于光学扫描仪的自动图像校准的方法和装置
公开(公告)号：US06188801B1
公开(公告)日：2001-02-13
申请号：US09144495
申请日：1998-08-31
申请人： Jenn-Tsair Tsai , Bill Chen
发明人： Jenn-Tsair Tsai , Bill Chen
IPC分类号： G06K932
CPC分类号： G06K9/32 , G06K9/03 , H04N1/3878
摘要： A memory is divided into several blocks in advance for storing calibrated pixels in sequence. Then, start to check each pixel row by row. The obliquity ratio of each pixel will be computed based on two referential blocks on the two sides of the calibration paper. The obliquity ratio will then divided by the length of one pixel. If the residue of the division is larger than half the length of the pixel, it indicates that that pixel is the beginning of next block. Following this rule, we can divide each row into several blocks. The skew pixels will be calibrated according to a first calibration procedure and a second calibration procedure. The calibrated pixels will be stored in the memory blocks in sequence according to their block numbers. After all the pixels of the same row have been calibrated, the calibrated pixels will be read from the memory blocks in sequence. The calibrated procedure repeats until each row of the image has been calibrated.
摘要翻译：预先将存储器分成几个块，以便按顺序存储经校准的像素。然后，开始逐行检查每个像素。每个像素的倾斜比将基于校准纸两侧的两个参考块来计算。然后将斜率除以一个像素的长度。如果除法的残差大于像素长度的一半，则表示该像素是下一个块的开始。按照这个规则，我们可以将每一行划分成几个块。歪斜像素将根据第一校准程序和第二校准程序进行校准。校准后的像素将根据其块号按顺序存储在存储块中。在同一行的所有像素已被校准之后，校准像素将从存储器块中顺序读取。校准过程重复，直到图像的每一行都被校准。

3. 发明授权

US06637897B2 Securing device for transparent documents in a flatbed scanning system 有权
公开(公告)号：US06637897B2
公开(公告)日：2003-10-28
申请号：US10233684
申请日：2002-09-04
申请人： Jenn-Tsair Tsai , Chieng-Ming Tsaur , Bill Chen
发明人： Jenn-Tsair Tsai , Chieng-Ming Tsaur , Bill Chen
IPC分类号： G03B2114
CPC分类号： H04N1/10 , H04N2201/0404 , Y10S353/05
摘要： A transparent document securing device, using in a flatbed scanner, includes a securing frame. The securing frame comprises at least a securing cell, wherein the securing cell further includes a concave, a cover and a clip mechanism. The concave includes at least a first opening and an open slot. The cover includes at least a second opening. The securing device employs the cover to mount a transparent document in a concave. A user is therefore be able to place the securing device along with the transparent document in the document glass of a scanning system. By a predetermined mode, the scanning system is able to directly scan the transparent document; no need to preview the scanned image to adjust the scanning area. Thus, the time for scanning is saved. Further the fixed depth of the concave is utilized to proved a precise focus of the scanning system. The quality of the scanned image is therefore improved.

4. 发明授权

US06278808B1 Method and apparatus for obtaining relative and absolute modifying factors for image scanning apparatus 有权
标题翻译：用于获得图像扫描装置的相对和绝对修正因子的方法和装置
公开(公告)号：US06278808B1
公开(公告)日：2001-08-21
申请号：US09239407
申请日：1999-01-28
申请人： Jenn-Tsair Tsai , Bill Chen
发明人： Jenn-Tsair Tsai , Bill Chen
IPC分类号： G06K900
CPC分类号： H04N1/00018 , H04N1/00002 , H04N1/00034 , H04N1/00045 , H04N1/00053 , H04N1/00063 , H04N1/00082 , H04N1/047 , H04N2201/04703 , H04N2201/04717 , H04N2201/04732 , H04N2201/04749 , H04N2201/04787
摘要： A fast and effective method and an apparatus are provided for obtaining relative and absolute magnifying factors in the transverse and longitudinal directions to improve the scanning quality. The method for obtaining relative modifying factors includes the steps of (a) providing a first line segment, which extends in a direction other than either one of the first direction and the second direction, having a plurality of scanning points wherein there is a specific functional relationship between a distance in the first direction and a distance in the second direction of any two of the scanning points, (b) scanning the first line segment at a first one of the scanning points, (c) scanning the first line segment at a second one of the scanning points, wherein the first and the second scanning points have a particular position distance in the first direction, (d) obtaining a scanning distance between the first and the second scanning points in the second direction from the image scanning apparatus, and (e) calculating a relative modifying factor from the scanning distance and the particular position distance according the specific functional relationship. The method further provides a second line segment for obtaining an absolute magnifying factor in one of the first and second directions.
摘要翻译：提供了一种快速有效的方法和装置，用于在横向和纵向上获得相对和绝对放大系数，以提高扫描质量。用于获得相对修改因子的方法包括以下步骤：（a）提供沿除第一方向和第二方向中的任一方向以外的方向延伸的第一线段，其具有多个扫描点，其中存在特定功能（b）在第一扫描点扫描第一线段，（c）以第一方向扫描第一线段，扫描第一线段，第二扫描点，其中第一和第二扫描点在第一方向上具有特定位置距离，（d）从图像扫描装置获得在第二方向上的第一和第二扫描点之间的扫描距离，和（e）根据具体的功能关系从扫描距离和特定位置距离计算相对修正因子。该方法还提供了用于在第一和第二方向之一中获得绝对放大系数的第二线段。

5. 发明授权

US06392762B1 Device for quick and precise determination of scan start point for image scanner 有权
标题翻译：用于快速，准确地确定图像扫描仪扫描起始点的设备
公开(公告)号：US06392762B1
公开(公告)日：2002-05-21
申请号：US09275501
申请日：1999-03-24
申请人： Jenn-Tsair Tsai , Bill Chen
发明人： Jenn-Tsair Tsai , Bill Chen
IPC分类号： H04N104
CPC分类号： H04N1/047 , H04N1/1017 , H04N1/193 , H04N2201/04703 , H04N2201/0472 , H04N2201/04729 , H04N2201/04731 , H04N2201/04732 , H04N2201/04749
摘要： A device for quick and precise determination of a scan start point for an image scanner is disclosed. The image scanner includes a photo-processing device and a scanning platform for placing thereon a document to be scanned. The scanning platform is printed with a background region and a color block which are of different colors and located in front of the scan start point of the photo-processing device, and the color block is enclosed with the background region, and has a specified point therein being a predetermined shift to the scan start point along a specific direction. The photo-processing device moves a predetermined distance L0 from the home position to a pre-scan position overlapping with the color block, then moves a calculated distance L1 from the pre-scan position to the specified point, and moves another predetermined distance L2 from the specified point to the scan start point along the specific direction to start scanning. The distance L1 can be automatically adjusted to cover the installation error of the photo-processing device. For another image scanner disclosed herein, the movement of the distance L0 can be omitted by having the color blocks located at the home position which serves as the pre-scan position.
摘要翻译：公开了一种快速准确地确定图像扫描仪的扫描起始点的装置。图像扫描仪包括照相处理装置和用于放置待扫描文件的扫描平台。扫描平台印刷有不同颜色的背景区域和颜色块，并且位于照相处理装置的扫描起始点的前方，并且颜色块被背景区域包围，并且具有指定点其中沿着特定方向是到扫描开始点的预定移位。照相处理装置将预定距离L0从原始位置移动到与彩色块重叠的预扫描位置，然后将计算出的距离L1从预扫描位置移动到指定点，并且将另一预定距离L2从指定点到扫描起点沿特定方向开始扫描。可以自动调节距离L1以覆盖照相处理设备的安装错误。对于本文公开的另一图像扫描仪，可以通过使颜色块位于用作预扫描位置的原始位置来省略距离L0的移动。

6. 发明授权

US06377362B1 Method and apparatus for obtaining magnification error for image scanning apparatus 有权
标题翻译：用于获得图像扫描装置的放大误差的方法和装置
公开(公告)号：US06377362B1
公开(公告)日：2002-04-23
申请号：US09213987
申请日：1998-12-17
申请人： Jenn-Tsair Tsai , Bill Chen
发明人： Jenn-Tsair Tsai , Bill Chen
IPC分类号： H04P100
CPC分类号： H04N1/0473 , H04N1/1017 , H04N1/193 , H04N2201/04706 , H04N2201/0472 , H04N2201/04787
摘要： A method and an apparatus for obtaining a magnification error in a first direction for an image scanning apparatus is disclosed. The method includes steps of (a) providing a marking pattern having a particular length in the first direction, (b) scanning the marking pattern to obtain a scanning length in the first direction, and (c) calculating the magnification error in the first direction from scanning length and the particular length.
摘要翻译：公开了一种用于获得用于图像扫描装置的第一方向的放大误差的方法和装置。该方法包括以下步骤：（a）提供在第一方向上具有特定长度的标记图案，（b）扫描标记图案以获得第一方向上的扫描长度，以及（c）计算第一方向上的放大误差从扫描长度和特定长度。

7. 再颁专利

USRE41038E1 Securing device for transparent documents in a flatbed scanning system 有权
标题翻译：在平板扫描系统中固定透明文档的设备
公开(公告)号：USRE41038E1
公开(公告)日：2009-12-15
申请号：US11262556
申请日：2005-10-28
申请人： Jenn-Tsair Tsai , Chieng-Ming Tsaur , Bill Chen
发明人： Jenn-Tsair Tsai , Chieng-Ming Tsaur , Bill Chen
IPC分类号： G03B21/14
CPC分类号： H04N1/10 , H04N2201/0404 , Y10S353/05
摘要： A transparent document securing device, using in a flatbed scanner, includes a securing frame. The securing frame comprises at least a securing cell, wherein the securing cell further includes a concave, a cover and a clip mechanism. The concave includes a least a first opening and an open slot. The cover includes at least a second opening. The securing device employs the cover to mount a transparent document in a concave. A user is therefore be able to place the securing device along with the transparent document in the document glass of a scanning system. By a predetermined mode, the scanning system is able to directly scan the transparent document; no need to preview the scanned image to adjust the scanning area. Thus, the time for scanning is saved. Further the fixed depth of the concave is utilized to proved a precise focus of the scanning system. The quality of the scanned image is therefore improved.
摘要翻译：在平板扫描仪中使用的透明文件固定装置包括固定框架。所述固定框架至少包括固定单元，其中所述固定单元还包括凹面，盖子和夹子机构。凹部包括至少第一开口和开口槽。盖子至少包括第二开口。固定装置采用盖将透明文件安装在凹面中。因此，用户能够将固定装置与透明文档一起放置在扫描系统的文档玻璃板中。通过预定模式，扫描系统能够直接扫描透明文档; 无需预览扫描图像来调整扫描区域。因此，保存扫描的时间。此外，凹面的固定深度用于证明扫描系统的精确焦点。因此扫描图像的质量得到改善。

8. 再颁专利

USRE41567E1 Method for optimizing the best resolution of an optical scanning system and apparatus for the same 失效
标题翻译：用于优化光学扫描系统的最佳分辨率的方法及其设备的方法
公开(公告)号：USRE41567E1
公开(公告)日：2010-08-24
申请号：US11786468
申请日：2007-04-10
申请人： Jenn-Tsair Tsai , June-Num Chen
发明人： Jenn-Tsair Tsai , June-Num Chen
IPC分类号： G06F15/00 , G06K1/00
CPC分类号： H04N1/00002 , H04N1/00013 , H04N1/00031 , H04N1/00045 , H04N1/00053 , H04N1/00063 , H04N1/00068 , H04N1/00076
摘要： The present invention provides a method and an apparatus for fast finding the best resolution of an optical scanning device during assembling steps. The present invention improves the graphics of the calibration device. Accompanying with calculation of an adjustment device, the present invention generates a referencing parameters. The parameters represent the resolution of the optical scanning device; and further is able to show the balance of horizontal resolution and the balance of vertical resolution. In this case, technicians can optimize the best position of the lens in order to build an optical scanning with precision and narrow the misalignment during assembly.
摘要翻译：本发明提供一种用于在组装步骤期间快速找到光学扫描装置的最佳分辨率的方法和装置。本发明改进了校准装置的图形。伴随着调整装置的计算，本发明生成参考参数。参数表示光学扫描装置的分辨率; 并且还能够显示水平分辨率的平衡和垂直分辨率的平衡。在这种情况下，技术人员可以优化镜头的最佳位置，以便在组装过程中精确地构建光学扫描并缩小错位。

9. 发明授权

US06721072B1 Apparatus for scanning documents in front of a document plate 有权
标题翻译：用于在文件板前扫描文件的装置
公开(公告)号：US06721072B1
公开(公告)日：2004-04-13
申请号：US09661469
申请日：2000-09-13
申请人： Jenn-Tsair Tsai , Albert Lu , Emmet Chen
发明人： Jenn-Tsair Tsai , Albert Lu , Emmet Chen
IPC分类号： H04N140
CPC分类号： H04N1/1013
摘要： The present invention provides a scanning device. The scanning device comprises a document plate for placing a document, at least a sliding guide placed at one side of the document plate, a scanning module which is in front of the document plate for scanning the document along the direction of the sliding guide, a first light source assembled in the scanning module for providing light to scan documents, and a driving module electrically connected to the scanning module for driving the scanning module to perform scanning procedure to the document.
摘要翻译：本发明提供一种扫描装置。扫描装置包括用于放置原稿的文件板，至少一个放置在原稿板一侧的滑动导向器，位于文件板前面的扫描模块，用于沿滑动导向件的方向扫描原稿; 组装在用于提供光扫描文档的扫描模块中的第一光源，以及电连接到扫描模块的驱动模块，用于驱动扫描模块对文档执行扫描过程。

10. 发明授权

US06282331B1 Apparatus of alignment for scanner and a method of the same 有权
标题翻译：扫描仪对准装置及其方法
公开(公告)号：US06282331B1
公开(公告)日：2001-08-28
申请号：US09662833
申请日：2000-09-15
申请人： Wayne Lee , Jenn-Tsair Tsai , Hsi-Min Chen
发明人： Wayne Lee , Jenn-Tsair Tsai , Hsi-Min Chen
IPC分类号： G06K700
CPC分类号： G06K19/06131 , G06K7/10
摘要： An alignment pad is set in front of the image sensor. A lens is set between the alignment pad and the image sensor. The alignment pad includes a set of boundary alignment patterns. At least one sets of resolution analysis patterns are formed on the alignment pad. Each set of the resolution analysis pattern includes a horizontal analysis resolution pattern and a vertical resolution analysis pattern. The horizontal analysis resolution pattern is consisted of a plurality of vertical lines to analyze the horizontal resolution of the lens. The vertical resolution analysis pattern is consisted of a plurality of oblique lines to analyze the vertical resolution of the lens. The signals detected by the image sensor is fed to an application specific integrated circuits (ASIC) to generate a collation data. Subsequently, the collation data is fed into a buffer to store the data. A computer is responsive to these signal, and displays the collation data on the monitor in gray mode for collation.
摘要翻译：在图像传感器的前面设置一个对准焊盘。在对准板和图像传感器之间设置透镜。对准衬垫包括一组边界对准图案。在对准焊盘上形成至少一组分辨率分析图案。每组分辨率分析图案包括水平分析分辨率图案和垂直分辨率分析图案。水平分析分辨率图案由多条垂直线组成，以分析透镜的水平分辨率。垂直分辨率分析图案由多条倾斜线组成，用于分析透镜的垂直分辨率。由图像传感器检测的信号被馈送到专用集成电路（ASIC）以产生核对数据。随后，核对数据被馈送到缓冲器中以存储数据。计算机响应于这些信号，并且以灰色模式在监视器上显示核对数据以进行核对。

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