公开(公告)号：US20110134444A1

公开(公告)日：2011-06-09

申请号：US12872071

申请日：2010-08-31

Applicant: Ho-keun LEE

Inventor： Ho-keun LEE

IPC: H04N1/04

CPC classification number: H04N1/0044 ,  H04N1/00795 ,  H04N1/00816 ,  H04N2201/043 ,  H04N2201/0434

Abstract: A scanning method of an image forming apparatus including free-scanning a page to be scanned, setting a scan data generation area to generate scan data on the free-scanned image, if a subsequent page is main-scanned, detecting a relative position of the scan data generation area from a scanned area of the main-scanned page, adjusting the scan data generation area using the detected relative position, and generating scan data for the adjusted scan data generation area, and an image forming apparatus to perform the same. Therefore, a plurality of pages can be precisely scanned or copied with a specific size.

Abstract translation: 一种图像形成装置的扫描方法，包括：对要扫描的页面进行自由扫描，设置扫描数据生成区域以产生扫描图像上的扫描数据，如果主扫描后续页面，则检测相关位置 从主扫描页的扫描区域扫描数据生成区域，使用检测到的相对位置调整扫描数据生成区域，以及生成用于调整后的扫描数据生成区域的扫描数据，以及执行该扫描数据生成区域的图像形成装置。 因此，可以以特定尺寸精确地扫描或复制多个页面。

公开(公告)号：US20130044356A1

公开(公告)日：2013-02-21

申请号：US13447987

申请日：2012-04-16

Applicant: Ho-keun LEE

Inventor： Ho-keun LEE

IPC: H04N1/04

CPC classification number: G06K9/723 ,  G06K2209/01

Abstract: A control method of an image forming apparatus is provided that includes: receiving a user command to perform a document analysis operation; generating scan data by scanning an input document, in response to the user command; setting a predefined menu operation language as the operation language for the document analysis operation, if no operation language is preset; and performing the document analysis operation based on the set operation language.

Abstract translation: 提供了一种图像形成装置的控制方法，包括：接收用户命令以执行文档分析操作; 响应于用户命令，通过扫描输入文档来产生扫描数据; 如果没有预设操作语言，则设置预定义的菜单操作语言作为文档分析操作的操作语言; 以及基于所设置的操作语言执行文档分析操作。

公开(公告)号：US20080309955A1

公开(公告)日：2008-12-18

申请号：US11970615

申请日：2008-01-08

Applicant: Ho-keun LEE ,  Sang-youn Shin

Inventor： Ho-keun LEE ,  Sang-youn Shin

IPC: B41J2/21 ,  H04N1/46

CPC classification number: H04N1/4056

Abstract: An image forming apparatus to improve image quality. The image forming apparatus includes a window control unit to generate a window of a predetermined size using a lines per inch (LPI) value of a dithering mask and an angle, and to detect locations of a center reference pixel and neighboring reference pixels in the window, a weighting set unit to apply weighted values to the reference pixels based on locations of the detected center reference pixel and the neighboring reference pixels, and a control unit to determine a dot size of the center reference pixel corresponding to weighted values corresponding to locations of black pixels of the center reference pixel and neighboring reference pixels. Accordingly, image quality is improved by generating dots corresponding to a plurality of gray levels based on weighted values.

Abstract translation: 一种提高图像质量的图像形成装置。 图像形成装置包括：窗口控制单元，用于使用抖动掩模的每英寸行（LPI）值和角度来生成预定尺寸的窗口，并且检测窗口中的中心参考像素和相邻参考像素的位置 基于检测到的中心参考像素和相邻参考像素的位置将加权值应用于参考像素的加权设置单元，以及控制单元，用于确定对应于对应于位置的加权值的中心参考像素的点大小 中心参考像素和相邻参考像素的黑色像素。 因此，通过基于加权值产生与多个灰度级对应的点来提高图像质量。

公开(公告)号：US20070019012A1

公开(公告)日：2007-01-25

申请号：US11420120

申请日：2006-05-24

Applicant: Ho-keun LEE

Inventor： Ho-keun LEE

IPC: B41J25/308

CPC classification number: B41J2/2139

Abstract: An apparatus and method of compensating for defective nozzles. Accordingly, in an image forming apparatus having inkjet nozzles (i.e., an inkjet printer), image quality deterioration due to defective nozzles (i.e., nozzles that cannot discharge ink) may be compensated for by replacing data after moving a printer head to an optimum position. Image quality deterioration due to defective nozzles may also be compensated by replacing data to be printed after moving at he printer head to the optimum position.

Abstract translation: 补偿缺陷喷嘴的装置和方法。 因此，在具有喷墨喷嘴（即，喷墨打印机）的图像形成装置中，可以通过在将打印机头移动到最佳位置之后替换数据来补偿由于喷嘴不良而导致的图像质量劣化（即，不能排出墨水的喷嘴） 。 由于喷嘴缺陷造成的图像质量下降也可以通过将打印机头部移动后的待打印数据替换到最佳位置来进行补偿。

公开(公告)号：US20100027075A1

公开(公告)日：2010-02-04

申请号：US12410757

申请日：2009-03-25

Applicant: Ho-keun LEE

Inventor： Ho-keun LEE

IPC: H04N1/40

CPC classification number: H04N1/3871

Abstract: An image forming apparatus and a printing method thereof, the printing method including: generating continuous tone data corresponding to an image area of print data and binary data corresponding to a text area of the print data; generating merged data based on the continuous tone data and the binary data; and performing a half-toning of the merged data to generate final data to be printed on a print medium.

Abstract translation: 一种图像形成装置及其打印方法，所述打印方法包括：产生与打印数据的图像区域相对应的连续色调数据和对应于打印数据的文本区域的二进制数据; 基于连续色调数据和二进制数据产生合并数据; 并且对合并的数据执行半色调以生成要打印在打印介质上的最终数据。

公开(公告)号：US20080239335A1

公开(公告)日：2008-10-02

申请号：US11850894

申请日：2007-09-06

Applicant: Ho-keun LEE ,  Sang-ho Kim ,  Choon-woo Kim ,  Byong-tae Ryu ,  Jong-ok Lee

Inventor： Ho-keun LEE ,  Sang-ho Kim ,  Choon-woo Kim ,  Byong-tae Ryu ,  Jong-ok Lee

IPC: G06K15/00

CPC classification number: H04N19/14 ,  H04N19/176 ,  H04N19/90

Abstract: A print system having an enhanced depth resolution of an image. The print system includes a host device to divide a gray image into basic block units, to determine whether the basic block units represent an edge area, to convert the gray image into binary data, and to output the converted gray image; and an image forming apparatus to determine whether the binary data received from the host device represents an edge area, to convert the binary data into a gray image according to the result of determination, and to print the gray image. As a result, depth resolution is enhanced, and print data transmission time is shortened.

Abstract translation: 具有增强的图像深度分辨率的打印系统。 打印系统包括：主机，用于将灰度图像划分为基本块单元，以确定基本块单元是否表示边缘区域，将灰度图像转换为二进制数据，并输出转换的灰度图像; 以及图像形成装置，用于确定从主机设备接收的二进制数据是否表示边缘区域，根据确定结果将二进制数据转换成灰度图像，并打印灰度图像。 结果，增强了深度分辨率，并且缩短了打印数据传输时间。