公开(公告)号：US06377362B1

公开(公告)日：2002-04-23

申请号：US09213987

申请日：1998-12-17

Applicant: Jenn-Tsair Tsai ,  Bill Chen

Inventor： Jenn-Tsair Tsai ,  Bill Chen

IPC: H04P100

CPC classification number: H04N1/0473 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/04706 ,  H04N2201/0472 ,  H04N2201/04787

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06236471B1

公开(公告)日：2001-05-22

申请号：US09086981

申请日：1998-05-29

Applicant: Hyun-Jun Lee

Inventor： Hyun-Jun Lee

IPC: H04N104

CPC classification number: B41J19/145 ,  H04N1/053 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/0468 ,  H04N2201/0471 ,  H04N2201/0472 ,  H04N2201/04732 ,  H04N2201/04755 ,  H04N2201/04794

Abstract: A vertical alignment correction apparatus and method includes a central processing unit for reading a vertical alignment correction program, detecting scanning distances during bidirectional scanning using a vertical reference line, and outputting a control signal for correcting a scanning distance difference; a print driver for receiving the correction control signal and for outputting a control signal for controlling the scanning distances; and a carriage return motor whose rotation number is controlled according to the control signal output from the print driver.

Abstract translation: 一种垂直取向校正装置和方法，包括用于读取垂直取向校正程序的中央处理单元，使用垂直参考线检测双向扫描期间的扫描距离，并输出用于校正扫描距离差的控制信号; 打印驱动器，用于接收校正控制信号并输出​​用于控制扫描距离的控制信号; 以及回转电动机，其转数根据从打印驱动器输出的控制信号进行控制。

公开(公告)号：US06188805B1

公开(公告)日：2001-02-13

申请号：US08687015

申请日：1996-07-16

Applicant: Bing-Hsiu Wu ,  Chien-Hsing Tang ,  Ted Cheng

Inventor： Bing-Hsiu Wu ,  Chien-Hsing Tang ,  Ted Cheng

IPC: G06K700

CPC classification number: H04N1/00816 ,  H04N1/053 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/044 ,  H04N2201/04703 ,  H04N2201/0472 ,  H04N2201/04732 ,  H04N2201/04758 ,  H04N2201/04793

Abstract: A method for automatically aligning a charge coupled device of a scanner by using a software contained in the scanner instead of physically aligning the charge coupled device is disclosed. The scanner comprises a charge coupled device (CCD) having an array of optic sensors for converting a reflected line image into an analog signal array, an analog-to-digital (A/D) converter for converting the analog signal array into an image data array, and a test region having a positioning mark in it. The method comprises the following steps of: (1) generating an image data array which comprises the image of the test region in it by using the CCD and the A/D converter; (2) identifying the positioning mark from the image data array; and (3) setting an effective scanning range which defines the start and stop positions of valid image data within the image data array according to the identified positioning mark.

Abstract translation: 公开了一种通过使用扫描仪中包含的软件来自动对准扫描仪的电荷耦合器件而不是物理对准电荷耦合器件的方法。 扫描器包括具有用于将反射线图像转换为模拟信号阵列的光学传感器阵列的电荷耦合器件（CCD），用于将模拟信号阵列转换成图像数据的模数（A / D）转换器 阵列，以及在其中具有定位标记的测试区域。 该方法包括以下步骤：（1）通过使用CCD和A / D转换器生成包括测试区域的图像的图像数据阵列;（2）从图像数据阵列识别定位标记; 和（3）根据所识别的定位标记设置有效扫描范围，其定义图像数据阵列内有效图像数据的开始和停止位置。