公开(公告)号：US08223933B2

公开(公告)日：2012-07-17

申请号：US11845192

申请日：2007-08-27

申请人： Yun Tae Kim ,  Jeong Baek Lee ,  Jong Cheol Oh

发明人： Yun Tae Kim ,  Jeong Baek Lee ,  Jong Cheol Oh

IPC分类号： H04M11/00

CPC分类号： H04M11/066 ,  H04N1/32765 ,  H04N2201/0093

摘要： A line interface unit in which a circuit to detect a calling line and a ring signal includes a connecting unit connected to a public switched telephone network (PSTN) to individually detect the calling line and the ring signal and to commonly use an insulating circuit electrically insulated from PSTN. A circuit to detect the calling line and the ring signal is simply implemented so that economical burden can be reduced.

摘要翻译： 线路接口单元，其中检测呼叫线路和振铃信号的电路包括连接到公共交换电话网（PSTN）的连接单元，以单独检测呼叫线路和振铃信号，并且通常使用绝缘电路 来自PSTN。 用于检测呼叫线路和振铃信号的电路被简单地实现，从而可以减少经济负担。

公开(公告)号：US20080095341A1

公开(公告)日：2008-04-24

申请号：US11845192

申请日：2007-08-27

申请人： Yun Tae Kim ,  Jeong Baek Lee ,  Jong Cheol Oh

发明人： Yun Tae Kim ,  Jeong Baek Lee ,  Jong Cheol Oh

IPC分类号： H04M11/00

CPC分类号： H04M11/066 ,  H04N1/32765 ,  H04N2201/0093

摘要： A line interface unit in which a circuit to detect a calling line and a ring signal includes a connecting unit connected to a public switched telephone network (PSTN) to individually detect the calling line and the ring signal and to commonly use an insulating circuit electrically insulated from PSTN. A circuit to detect the calling line and the ring signal is simply implemented so that economical burden can be reduced.

摘要翻译： 线路接口单元，其中检测呼叫线路和振铃信号的电路包括连接到公共交换电话网（PSTN）的连接单元，以单独检测呼叫线路和振铃信号，并且通常使用绝缘电路 来自PSTN。 用于检测呼叫线路和振铃信号的电路被简单地实现，从而可以减少经济负担。

公开(公告)号：US20110169215A1

公开(公告)日：2011-07-14

申请号：US12985482

申请日：2011-01-06

申请人： Jong Cheol OH ,  Dong Chul YANG ,  Ju Hwan JEONG

发明人： Jong Cheol OH ,  Dong Chul YANG ,  Ju Hwan JEONG

IPC分类号： B65H7/02 ,  B65H7/20 ,  B65H1/00

CPC分类号： B65H1/266 ,  B65H7/14 ,  B65H2511/10 ,  B65H2511/22 ,  B65H2515/702 ,  B65H2553/414 ,  B65H2220/01 ,  B65H2220/02 ,  B65H2220/03

摘要： A paper feeding device to sense various sizes of paper according to a sensing voltage output from a sensor and an image forming apparatus having the same includes a body to receive paper in which an image is printed thereon. The image forming apparatus further includes a paper feeding device to feed paper into the body. The paper feeding device includes a paper tray in which paper is loaded, and paper guides that are slidably installed to the paper tray to guide left and right ends of paper loaded in the paper tray in a paper feeding direction. A light reflector is installed to be moved in linkage with the paper guides and includes a stepped reflection surface. A sensor emits light to the light reflector and receives the light reflected by the light reflector to determine the sizes of paper.

摘要翻译： 根据从传感器输出的感测电压和具有该传感器的图像形成装置感测各种尺寸的纸张的送纸装置包括：主体，用于接收在其上印刷图像的纸张。 图像形成装置还包括将纸送入主体的送纸装置。 送纸装置包括装载有纸张的纸托盘和可滑动地安装在纸托盘上的纸张引导件，以引导在进纸方向上装载在纸盘中的纸张的左端和右端。 光反射器安装成与导纸板相连动地移动并且包括阶梯式反射面。 传感器向光反射器发射光并接收由光反射器反射的光以确定纸的尺寸。

公开(公告)号：US20050157352A1

公开(公告)日：2005-07-21

申请号：US11020161

申请日：2004-12-27

申请人： Jong-Cheol Oh

发明人： Jong-Cheol Oh

IPC分类号： H04N1/40 ,  H04N1/00 ,  H04N1/04 ,  H04N1/047

CPC分类号： H04N1/00814 ,  H04N1/00976 ,  H04N1/04 ,  H04N2201/046

摘要： A scan image correction device includes a scanning part to scan an image of a document in a block unit, an electro static discharge (ESD) determination part to determine a presence of an external ESD while the scanning part scans the image, a document feeding adjustment part to feed the document backward by the block unit to allow the scanning part to re-scan the image if the ESD determination part determines that the ESD present, and an image process part to receive the image as an ESD free scan image and to process the received image. Accordingly, the scan image correction device prevents one or more black lines from appearing by an influence of the ESD during scanning so that a high-quality scan image can be provided.

摘要翻译： 扫描图像校正装置包括以块为单位扫描文档的图像的扫描部件，静电放电（ESD）判定部，其在扫描部扫描图像时确定外部ESD的存在，文件进给调整 部分，以块单元向后馈送文档，以允许扫描部分如果ESD确定部分确定ESD存在则重新扫描图像，以及图像处理部分，以将图像接收为无ESD扫描图像，并且处理 收到的图像。 因此，扫描图像校正装置防止在扫描期间受到ESD的影响而出现一个或多个黑线，从而可以提供高质量的扫描图像。