公开(公告)号：US08761615B2

公开(公告)日：2014-06-24

申请号：US12926566

申请日：2010-11-24

Applicant: Dong-hoon Lee

Inventor： Dong-hoon Lee

IPC: G03G15/00 ,  G06K15/00 ,  G06F15/16 ,  G06F11/00

CPC classification number: G03G15/5075 ,  G03G15/502 ,  G03G2215/00109

Abstract: An image forming apparatus is provided. The image forming apparatus includes a search unit which broadcasts a search message for searching for a connectable host device, a communication interface unit which receives a response message for notifying that a print job is executable from host devices in response to the search message, a user interface unit which displays host devices corresponding to the received response message and receives a selection from a user regarding a host device to be connected from among the displayed host devices, and a controller which controls the communication interface unit to transmit a connection message for requesting connection with the image forming apparatus to the selected host device.

Abstract translation: 提供一种图像形成装置。 图像形成装置包括：广播用于搜索可连接主机设备的搜索消息的搜索单元;响应于搜索消息从主机设备接收用于通知打印作业可执行的响应消息的通信接口单元;用户 接口单元，其显示与所接收的响应消息相对应的主机设备，并从用户接收关于要显示的主机设备中要连接的主机设备的选择;以及控制器，其控制通信接口单元发送用于请求连接的连接消息 将图像形成装置连接到所选择的主机装置。

公开(公告)号：US08558757B2

公开(公告)日：2013-10-15

申请号：US10986321

申请日：2004-11-12

Applicant: Dong-hoon Lee ,  Young-chan Kim

Inventor： Dong-hoon Lee ,  Young-chan Kim

IPC: G09G5/00

CPC classification number: G09G5/006 ,  G09G2320/0606 ,  G09G2320/08 ,  G09G2370/047

Abstract: A display system including a display having a interface unit to provide bi-directional communication, a display unit to show an image, a signal processor to convert an image signal inputted through the interface unit to a signal being displayed by the display unit, and a MICOM to output a display information of a controllable functions over the display unit and the signal processor through the interface unit; and a controller connected to the interface unit and providing a graphic user interface corresponding to the display information received from the display and having a display controller to output a control instruction that the MICOM allows to control at least, one of the display unit and the signal processor according to setting through the graphic user interface, to the MICOM through the interface unit.

Abstract translation: 一种显示系统，包括具有提供双向通信的接口单元的显示器，显示图像的显示单元，将通过接口单元输入的图像信号转换成由显示单元显示的信号的信号处理器，以及 MICOM通过接口单元在显示单元和信号处理器上输出可控功能的显示信息; 以及连接到所述接口单元并且提供与从所述显示器接收的显示信息相对应的图形用户界面的控制器，并且具有显示控制器，以输出所述MICOM允许至少控制所述显示单元和所述信号中的至少一个的控制指令 处理器根据设置通过图形用户界面，通过接口单元到MICOM。

公开(公告)号：US07751502B2

公开(公告)日：2010-07-06

申请号：US11357335

申请日：2006-02-21

Applicant: Jung-won Kwak ,  Dong-hoon Lee

Inventor： Jung-won Kwak ,  Dong-hoon Lee

IPC: H04L27/00 ,  H03D1/00

CPC classification number: H04L7/042

Abstract: An apparatus to detect a sync signal, a VSB receiver using the same, and a method thereof. The apparatus includes a plurality of partial correlators to calculate a first partial correlation value between a sub sequence of a training sequence and an “I” signal of a received signal and a second partial correlation value between the sub sequence of the training sequence and a “Q” signal of the received signal, a plurality of squarers to square the first and second partial correlation values for each sub sequence, respectively, a plurality of adders to add the partial correlation values and to provide a correlation signal, a maximum value detection unit to detect a maximum one of the added partial correlation values, and a position detection unit to detect a position of the detected maximum value as the sync signal of the received signal.

Abstract translation: 用于检测同步信号的装置，使用其的VSB接收机及其方法。 该装置包括多个部分相关器，用于计算训练序列的子序列和接收信号的“I”信号之间的第一部分相关值，以及训练序列的子序列与“训练序列”的子序列之间的第二部分相关值， Q“信号，多个平方器分别对每个子序列平方第一和第二部分相关值，多个加法器来添加部分相关值并提供相关信号，最大值检测单元 以检测所添加的部分相关值中的最大值;以及位置检测单元，用于检测所检测到的最大值的位置作为接收信号的同步信号。

公开(公告)号：US07738589B2

公开(公告)日：2010-06-15

申请号：US10891184

申请日：2004-07-15

Applicant: Joon-soo Kim ,  Dong-hoon Lee ,  Jung-won Kwak ,  Chan-sub Park

Inventor： Joon-soo Kim ,  Dong-hoon Lee ,  Jung-won Kwak ,  Chan-sub Park

IPC: H04L27/00

CPC classification number: H04L1/0041 ,  H04B2201/70701 ,  H04L1/0065 ,  H04N5/211 ,  H04N5/4401 ,  H04N21/2383 ,  H04N21/4382

Abstract: A digital broadcasting transmission/reception system having an improved receiving performance and a signal processing method thereof. The transmission system includes a FEC encoder encoding an incoming signal according to a certain FEC scheme, a sync insertion unit inserting a sync into the encoded signal, a hidden pilot insertion unit inserting a hidden pilot into the sync-inserted signal, a pilot insertion unit inserting a pilot tone into the hidden-pilot-inserted signal, a pulse shaping filter pulse-shaping the pilot-tone-inserted signal with a certain roll-off factor, and a RF unit transmitting the pulse-shaped signal through a transmission channel band. Performances of equalization and synchronization acquirement can be enhanced in multipath conditions by utilizing the transmission system containing the hidden pilot.

Abstract translation: 一种具有改进的接收性能的数字广播发射/接收系统及其信号处理方法。 传输系统包括：根据特定FEC方案对入局信号进行编码的FEC编码器，将同步插入编码信号的同步插入单元，将隐藏导频插入同步插入信号中的隐藏导频插入单元;导频插入单元 将导频音插入到隐藏导频插入信号中，脉冲整形滤波器以一定的滚降因子脉冲整形导频音调插入信号，RF单元通过传输信道频带传送脉冲信号 。 通过利用包含隐藏导频的传输系统，可以在多径条件下增强均衡和同步获取的性能。

公开(公告)号：US07643577B2

公开(公告)日：2010-01-05

申请号：US11237815

申请日：2005-09-29

Applicant: Dong-hoon Lee

Inventor： Dong-hoon Lee

IPC: H03D1/24

CPC classification number: H04L27/066 ,  H04L7/0278 ,  H04L2027/0028 ,  H04L2027/0055 ,  H04L2027/0067 ,  H04L2027/0087

Abstract: A carrier and symbol timing recovery apparatus usable in a VSB (Vestigial Side Band) receiver, and a method thereof. For a carrier and symbol timing recovery, error information is detected using a pilot signal, an upper sideband and a lower sideband of a received signal. Each of the detected error information is multiplied by a predetermined weight, respectively, and the results of the respective multiplications are added/combined. Therefore, even though the pilot signal may be corrupted, the carrier recovery can nevertheless be accurately performed. Additionally, even though the upper sideband of a received VSB-modulated signal may be corrupted, the lower sideband can be utilized to perform the symbol timing recovery. As a result, performance of a receiving system can be improved even under unfavorable channel characteristics. Moreover, since the carrier recovery and the symbol timing recovery are executed through a single apparatus, it becomes possible to simplify a hardware implementation thereof.

Abstract translation: 可用于VSB（残留边带）接收机的载波和符号定时恢复装置及其方法。 对于载波和符号定时恢复，使用接收信号的导频信号，上边带和下边带检测错误信息。 每个检测到的误差信息分别乘以预定的权重，并且相加/合并各个乘法的结果。 因此，即使导频信号可能被破坏，仍可以准确地执行载波恢复。 另外，即使接收的VSB调制信号的上边带可能被破坏，也可以利用下边带来执行符号定时恢复。 结果，即使在不利的信道特征的情况下，也可以提高接收系统的性能。 此外，由于通过单个装置执行载波恢复和符号定时恢复，因此可以简化其硬件实现。

公开(公告)号：US20060176980A1

公开(公告)日：2006-08-10

申请号：US11347274

申请日：2006-02-06

Applicant: Dong-hoon Lee

Inventor： Dong-hoon Lee

IPC: H03D1/24 ,  H04L27/22

CPC classification number: H04L27/02 ,  H04L7/042

Abstract: A symbol timing recovery apparatus usable with a VSB receiver, includes a first correlator to calculate a first correlation value between an I channel receiving signal and a timing recovery reference signal, a second correlator to calculate a second correlation value between a Q channel receiving signal having a phase difference of 90° with respect to the I channel receiving signal and the reference signal, a calculating member to calculate a non-coherent combining value based on the first correlation value output from the first correlator and the second correlation value output from the second correlator, an early-late subtractor to calculate a difference value between the non-coherent combing value of a previous sample and the non-coherent combing value of a subsequent sample in samples of the I and Q channel receiving signals, and to detect a symbol timing offset based on the calculated difference signal, and a symbol timing controller to control symbol timing based on the detected symbol timing offset. Accordingly, by using the non-coherent combining value of the first and second correlation values, it is possible to perform the symbol timing recovery regardless of carrier recovery error, thereby minimizing symbol timing jitter.

Abstract translation: 一种与VSB接收机一起使用的符号定时恢复装置，包括：第一相关器，用于计算I信道接收信号和定时恢复参考信号之间的第一相关值;第二相关器，用于计算Q信道接收信号之间的第二相关值， 相对于I信道接收信号和参考信号的相位差为90°，基于从第一相关器输出的第一相关值和从第二相位器输出的第二相关值计算非相干合并值的计算部件 相关器，早期减法器，用于计算先前样本的非相干梳状值与I和Q信道接收信号的样本中后续样本的非相干精梳值之间的差值，并检测符号 基于所计算出的差分信号的定时偏移，以及基于所检测的控制符号定时的符号定时控制器 符号定时偏移。 因此，通过使用第一和第二相关值的非相干组合值，可以执行符号定时恢复，而不管载波恢复错误，从而使符号定时抖动最小化。

公开(公告)号：US20050035982A1

公开(公告)日：2005-02-17

申请号：US10832345

申请日：2004-04-27

Applicant: Yun-ju Hong ,  Young-chan Kim ,  Jae-hyung Chang ,  Heung-jun Park ,  Jun-seong Lee ,  Dong-hoon Lee

Inventor： Yun-ju Hong ,  Young-chan Kim ,  Jae-hyung Chang ,  Heung-jun Park ,  Jun-seong Lee ,  Dong-hoon Lee

IPC: H04N5/445 ,  G09G3/20 ,  G09G5/02 ,  G09G5/37 ,  G09G5/391

CPC classification number: G09G3/2092 ,  G09G2320/0693 ,  G09G2320/08 ,  G09G2340/0407

Abstract: A display apparatus including a panel to display images, a panel driver to control the panel to display the images, a scaler to process an input image signal according to a previously setup resolution, and to transmit the processed signal to the panel driver, an OSD (On Screen Display) controller to display an OSD message on the panel, and a control part to control the scaler to skip the input image signal in a regular interval and to transmit the processed signal to the panel driver, and to control the OSD controller to display the OSD message warning a frequency over range status, in response to a frequency of the input image signal exceeding a range of the previously setup resolution.

Abstract translation: 一种显示装置，包括显示图像的面板，用于控制面板显示图像的面板驱动器，根据先前设置分辨率处理输入图像信号的缩放器，并将处理后的信号发送到面板驱动器; OSD （屏幕显示）控制器在面板上显示OSD消息，以及控制部分，用于控制缩放器以规则的间隔跳过输入图像信号，并将处理的信号发送到面板驱动器，并且控制OSD控制器 响应于超过先前设置分辨率的范围的输入图像信号的频率，显示警告频率超出范围状态的OSD消息。

公开(公告)号：US20050015818A1

公开(公告)日：2005-01-20

申请号：US10891184

申请日：2004-07-15

Applicant: Joon-soo Kim ,  Dong-hoon Lee ,  Jung-won Kwak ,  Chan-sub Park

Inventor： Joon-soo Kim ,  Dong-hoon Lee ,  Jung-won Kwak ,  Chan-sub Park

IPC: H04N7/015 ,  H04B1/707 ,  H04L1/00 ,  H04N5/21 ,  H04N5/44 ,  H04N7/16 ,  H04N7/173 ,  H04N7/66 ,  H04N21/2383 ,  H04N21/438

CPC classification number: H04L1/0041 ,  H04B2201/70701 ,  H04L1/0065 ,  H04N5/211 ,  H04N5/4401 ,  H04N21/2383 ,  H04N21/4382

Abstract: A digital broadcasting transmission/reception system having an improved receiving performance and a signal processing method thereof. The transmission system includes a FEC encoder encoding an incoming signal according to a certain FEC scheme, a sync insertion unit inserting a sync into the encoded signal, a hidden pilot insertion unit inserting a hidden pilot into the sync-inserted signal, a pilot insertion unit inserting a pilot tone into the hidden-pilot-inserted signal, a pulse shaping filter pulse-shaping the pilot-tone-inserted signal with a certain roll-off factor, and a RF unit transmitting the pulse-shaped signal through a transmission channel band. Performances of equalization and synchronization acquirement can be enhanced in multipath conditions by utilizing the transmission system containing the hidden pilot.

Abstract translation: 一种具有改进的接收性能的数字广播发射/接收系统及其信号处理方法。 传输系统包括：根据特定FEC方案对入局信号进行编码的FEC编码器，将同步插入编码信号的同步插入单元，将隐藏导频插入同步插入信号中的隐藏导频插入单元;导频插入单元 将导频音插入到隐藏导频插入信号中，脉冲整形滤波器以一定的滚降因子脉冲整形导频音调插入信号，RF单元通过传输信道频带传送脉冲信号 。 通过利用包含隐藏导频的传输系统，可以在多径条件下增强均衡和同步获取的性能。

公开(公告)号：US20050013380A1

公开(公告)日：2005-01-20

申请号：US10891045

申请日：2004-07-15

Applicant: Joon-soo Kim ,  Dong-hoon Lee ,  Jung-won Kwak ,  Chan-sub Park

Inventor： Joon-soo Kim ,  Dong-hoon Lee ,  Jung-won Kwak ,  Chan-sub Park

IPC: H04N7/24 ,  H04L7/04 ,  H04L27/00

CPC classification number: H04L7/041 ,  H04L1/0065 ,  H04L27/06 ,  H04L2027/003 ,  H04L2027/0055 ,  H04N21/2383 ,  H04N21/4382

Abstract: Digital broadcasting transmission/reception systems capable of improving the synchronization acquisition and the equalization performance, and signal processing methods thereof. The digital broadcasting transmission/reception systems include a FEC encoder encoding an incoming signal according to a FEC scheme, a sync signal insertion unit inserting into the encoded signal a segment sync signal including modified segment syncs, a pilot insertion unit inserting a pilot signal into the sync-inserted signal, a pulse shaping filter pulse-shaping the pilot-inserted signal with a roll-off factor, and a RF unit transmitting the pulse-shaped signal through a transmission channel band. The modified segment sync includes a predetermined number of sync signals, and an average of correlation values with respect to the predetermined number of the sync signals has an auto-correlation property. The transmission scheme utilizing the modified segment syncs promotes compatibility with the conventional reception system, minimizes hardware complexity, and enhances synchronization acquisition and equalization performance.

Abstract translation: 能够改善同步采集和均衡性能的数字广播发送/接收系统及其信号处理方法。 数字广播发送/接收系统包括：根据FEC方案对输入信号进行编码的FEC编码器;同步信号插入单元，将编码信号插入到包括修改的段同步的段同步信号;导频插入单元，将导频信号插入到 同步插入信号，具有滚降因子脉冲整形导频插入信号的脉冲整形滤波器，以及RF单元通过传输信道频带传送脉冲信号。 修改的段同步包括预定数量的同步信号，并且相对于预定数量的同步信号的相关值的平均值具有自相关特性。 利用修改的段同步的传输方案提高了与常规接收系统的兼容性，使硬件复杂度最小化，并增强了同步采集和均衡性能。

公开(公告)号：US08705076B2

公开(公告)日：2014-04-22

申请号：US11076916

申请日：2005-03-11

Applicant: Dong-hoon Lee ,  Chan-sup Kim

Inventor： Dong-hoon Lee ,  Chan-sup Kim

IPC: B41B1/00

CPC classification number: G06F3/1237 ,  G06F3/1204 ,  G06F3/1285

Abstract: A printing system includes a host which includes a storage having one or more folders, establishes one of the folders as a target folder, and generates path information of the target folder, and an image forming apparatus to acquire a list of image files stored in the target folder based on the path information, to request thumbnail images corresponding to the image files on the list from the host, and to display the thumbnail images on a predetermined display unit by downloading the thumbnail images from the host. The host converts the image files stored in the target folder into the thumbnail images and transmits the thumbnail images to the image forming apparatus, and the image forming apparatus selects at least one among the thumbnail images and prints an image file corresponding to the selected thumbnail image by downloading the image file from the host.

Abstract translation: 打印系统包括主机，其包括具有一个或多个文件夹的存储器，将文件夹中的一个建立为目标文件夹，并且生成目标文件夹的路径信息，以及图像形成装置，用于获取存储在该文件夹中的图像文件的列表 基于路径信息的目标文件夹，从主机请求对应于列表上的图像文件的缩略图，并且通过从主机下载缩略图来在预定的显示单元上显示缩略图。 主机将存储在目标文件夹中的图像文件转换成缩略图，并将缩略图发送到图像形成装置，并且图像形成装置选择缩略图中的至少一个，并打印与所选缩略图对应的图像文件 通过从主机下载图像文件。