公开(公告)号：US08130873B2

公开(公告)日：2012-03-06

申请号：US11199077

申请日：2005-08-09

Applicant: Dong-hoon Lee

Inventor： Dong-hoon Lee

IPC: H03D1/24

CPC classification number: H04L27/0014 ,  H04L2027/003 ,  H04L2027/0053 ,  H04L2027/0067

Abstract: A carrier recovery apparatus usable with a VSB receiver and a method thereof. The carrier recovery apparatus is capable of recovering a carrier even though a pilot signal may be corrupted due to multi-path characteristics of a channel. Accordingly, the carrier recovery apparatus performs a BECM (Band Edge Component Maximization) algorithm on upper and lower sidebands of a received signal to generate phase information therefrom. The phase information is combined in a combiner. Since the BECM algorithm is performed on the upper and lower sidebands, it is possible to execute the carrier recovery even through the upper sideband of a received signal may be corrupted. Therefore, the carrier recovery apparatus can prevent performance degradation of the VSB receiver caused by corruption in the pilot signal.

Abstract translation: 一种可用于VSB接收机的载波恢复装置及其方法。 即使导频信号由于信道的多路径特性而被破坏，载波恢复装置能够恢复载波。 因此，载波恢复装置对接收信号的上边带和下边带执行BECM（带边部分最大化）算法，从而生成相位信息。 相位信息在组合器中组合。 由于在上边带和下边带执行BECM算法，因此即使通过接收信号的上边带也可能执行载波恢复可能被破坏。 因此，载波恢复装置可以防止由导频信号中的损坏导致的VSB接收机的性能劣化。

公开(公告)号：US07752435B2

公开(公告)日：2010-07-06

申请号：US11271990

申请日：2005-11-14

Applicant: Dae-youb Kim ,  Hwan-joon Kim ,  Weon-il Jin ,  Sung-joon Park ,  Dong-hoon Lee ,  Jung-yeon Hwang

Inventor： Dae-youb Kim ,  Hwan-joon Kim ,  Weon-il Jin ,  Sung-joon Park ,  Dong-hoon Lee ,  Jung-yeon Hwang

IPC: H04L29/06

CPC classification number: H04L9/3236 ,  H04L9/0891 ,  H04L9/0894 ,  H04L2209/38 ,  H04L2209/603

Abstract: A method of managing a user key for a broadcast encryption. The method includes assigning numbers to respective users and arranging the users on a ring-shaped structure in order to map hash chains onto the respective nodes of a ring-shaped structure. The method further includes making random node keys correspond to the respective nodes, one by one, constructing the hash chains from the corresponding node keys using a hash function, and successively mapping the constructed hash chains onto the nodes of the ring-shaped structure.

Abstract translation: 管理用于广播加密的用户密钥的方法。 该方法包括向各个用户分配号码并将用户排列在环形结构上，以便将散列链映射到环形结构的相应节点上。 该方法还包括使随机节点密钥逐个对应于各个节点，使用散列函数从相应的节点密钥构造散列链，并将构建的散列链连续地映射到环形结构的节点上。

公开(公告)号：US20070047637A1

公开(公告)日：2007-03-01

申请号：US11431712

申请日：2006-05-11

Applicant: Dong-hoon Lee

Inventor： Dong-hoon Lee

IPC: H03H7/30 ,  H04B1/10

CPC classification number: H04L25/03057 ,  H04L2025/03503 ,  H04L2025/03617 ,  H04L2025/03681

Abstract: A channel equalizer to equalize a signal received over a transmission channel, includes a feedforward filter to filter the received signal, a level determination unit to determine a first level value among a plurality of predetermined amplitude levels based on an amplitude of an output signal of the feedforward filter, and an error calculation unit to calculate a first error value based on the amplitude of the output signal of the feedforward filter and the first level value and to output the first error value to the feedforward filter so that the feedforward filter updates a tap coefficient thereof using the first error value. As such, the channel equalizer is capable of operating independently of a phase error by using the amplitude of the received signal in channel equalization, whereby a variety of designs can be available for the channel equalizer regardless of a sequence of a carrier recovery operation and a channel equalization operation.

Abstract translation: 用于对通过传输信道接收的信号进行均衡的信道均衡器包括用于对接收到的信号进行滤波的前馈滤波器;电平确定单元，用于基于输入信号的输出信号的幅度来确定多个预定幅度电平中的第一电平值 前馈滤波器和误差计算单元，用于基于前馈滤波器和第一电平值的输出信号的幅度来计算第一误差值，并将第一误差值输出到前馈滤波器，使得前馈滤波器更新抽头 其系数使用第一误差值。 这样，信道均衡器能够通过在信道均衡中使用接收信号的幅度而独立于相位误差进行操作，由此各种设计可用于信道均衡器，而不管载波恢复操作的序列如何，以及 信道均衡操作。

公开(公告)号：US20060262359A1

公开(公告)日：2006-11-23

申请号：US11434114

申请日：2006-05-16

Applicant: Dong-hoon Lee

Inventor： Dong-hoon Lee

IPC: H04N1/04

CPC classification number: H04N1/00222 ,  H04N1/00225 ,  H04N1/00244 ,  H04N2201/0081 ,  H04N2201/3205 ,  H04N2201/3208

Abstract: A network scanning apparatus, method and system enable scan data generated by a scanner or a multifunctional device having a scan function to be transmitted to any of a plurality of PCs connected to a network at a user's request. The network scanning system includes: an image scanning device which receives a scan request signal from a second terminal connected thereto via a local connection, generates scan data by scanning a document, and transmits the generated scan data to the second terminal; and the second terminal which transmits the scan data transmitted by the image scanning device to the first terminal connected thereto via a network. Accordingly, a typical image scanning device, such as a scanner, transmits scan data to a PC equipped with a network card via a local connection set up therebetween, and then the PC transmits the scan data to any of a plurality of PCs connected thereto via a network. Therefore, the image scanning device can use such a convenient network scan function without a requirement of a network card.

Abstract translation: 网络扫描装置，方法和系统使得扫描仪或具有扫描功能的多功能设备生成的扫描数据能够根据用户的请求发送到连接到网络的多个PC中的任一个。 网络扫描系统包括：图像扫描装置，其经由本地连接从连接到其的第二终端接收扫描请求信号，通过扫描文档生成扫描数据，并将生成的扫描数据发送到第二终端; 以及第二终端，其将由图像扫描装置发送的扫描数据经由网络发送到与其连接的第一终端。 因此，诸如扫描仪的典型图像扫描装置经由其间建立的本地连接将扫描数据发送到配备有网卡的PC，然后PC将扫描数据发送到通过其连接的多个PC中的任一个 一个网络。 因此，图像扫描装置可以使用这种方便的网络扫描功能而不需要网卡。

公开(公告)号：US20060176948A1

公开(公告)日：2006-08-10

申请号：US11320796

申请日：2005-12-30

Applicant: Dong-hoon Lee

Inventor： Dong-hoon Lee

IPC: H03H7/30 ,  H04B1/10

CPC classification number: H04L25/03057 ,  H04L25/061

Abstract: A decision feedback channel equalizer of a digital receiver includes a feedforward filter to receive and filter a demodulated signal to remove one or more ghost signals, a hard decision unit to decide a decision value based on a first signal outputted from the feedforward filter, a feedback filter to receive and filter the decision value, and to output a second signal, and a hard decision error estimator to estimate a hard decision error rate based on the demodulated signal, the first signal and the decision value, and to control the equalizer to update tap coefficients of the feedforward filter and the feedback filter according to the hard decision error rate. Accordingly, the tap coefficients of the feedforward filter and the feedback filter may be adjusted adaptively based on the hard decision error rate.

Abstract translation: 数字接收机的判决反馈信道均衡器包括：前馈滤波器，用于接收和滤波解调信号以去除一个或多个重影信号;硬判决单元，用于基于从前馈滤波器输出的第一信号来确定判定值;反馈 过滤器以接收和过滤判定值，并输出第二信号，以及硬判决误差估计器，基于解调信号，第一信号和判定值来估计硬判决误差率，并且控制均衡器更新 根据硬决策误差率，前馈滤波器和反馈滤波器的抽头系数。 因此，可以基于硬决策误差率自适应地调整前馈滤波器和反馈滤波器的抽头系数。

公开(公告)号：US20060107043A1

公开(公告)日：2006-05-18

申请号：US11271990

申请日：2005-11-14

Applicant: Dae-youb Kim ,  Hwan-joon Kim ,  Weon-il Jin ,  Sung-joon Park ,  Dong-hoon Lee ,  Jung-yeon Hwang

Inventor： Dae-youb Kim ,  Hwan-joon Kim ,  Weon-il Jin ,  Sung-joon Park ,  Dong-hoon Lee ,  Jung-yeon Hwang

IPC: H04L9/00

CPC classification number: H04L9/3236 ,  H04L9/0891 ,  H04L9/0894 ,  H04L2209/38 ,  H04L2209/603

Abstract: A method of managing a user key for a broadcast encryption. The method includes assigning numbers to respective users and arranging the users on a ring-shaped structure in order to map hash chains onto the respective nodes of a ring-shaped structure. The method further includes making random node keys correspond to the respective nodes, one by one, constructing the hash chains from the corresponding node keys using a hash function, and successively mapping the constructed hash chains onto the nodes of the ring-shaped structure.

Abstract translation: 管理用于广播加密的用户密钥的方法。 该方法包括向各个用户分配号码并将用户排列在环形结构上，以便将散列链映射到环形结构的相应节点上。 该方法还包括使随机节点密钥逐个对应于各个节点，使用散列函数从相应的节点密钥构造散列链，并将构建的散列链连续地映射到环形结构的节点上。

公开(公告)号：US20060078071A1

公开(公告)日：2006-04-13

申请号：US11237815

申请日：2005-09-29

Applicant: Dong-hoon Lee

Inventor： Dong-hoon Lee

IPC: H04L27/22

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：US20050156933A1

公开(公告)日：2005-07-21

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: G06F3/14 ,  G09G3/20 ,  G09G5/00 ,  H04N5/445

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

Abstract: A display system including a display having a interface unit to provide bidirectional 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为由显示单元显示的信号的信号处理器，以及将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：US06838753B2

公开(公告)日：2005-01-04

申请号：US10328235

申请日：2002-12-23

Applicant: Sang-kyun Lee ,  Bong-hui Lee ,  Dong-hoon Lee

Inventor： Sang-kyun Lee ,  Bong-hui Lee ,  Dong-hoon Lee

IPC: H01L21/56 ,  H01L21/60 ,  H01L23/02 ,  H01L23/31 ,  H01L23/495 ,  H01L23/50

CPC classification number: H01L24/86 ,  H01L21/565 ,  H01L23/3107 ,  H01L23/49541 ,  H01L24/48 ,  H01L24/97 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/00015 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01033 ,  H01L2924/01082 ,  H01L2924/1532 ,  H01L2924/181 ,  H01L2224/05599 ,  H01L2224/85399 ,  H01L2224/45099 ,  H01L2924/00012 ,  H01L2224/45015 ,  H01L2924/207

Abstract: Provided are a lead frame strip and a method of fabricating a semiconductor package using the same. The lead frame strip includes at least one lead frame panel in which a plurality of unit lead frames are arranged to be connected with one another in matrix forms, wherein each unit lead frame includes: a die pad to which a semiconductor chip is to be mounted; a tie bar, an end of which being connected to the die pad and processed to be downset; a plurality of leads positioned at the same level as another end of the tie bar and extended with a predetermined distance from the tie pad; a dam bar formed across the leads and united with the leads to support the leads, wherein a slot is formed along edges of the lead frame panel and functions as a buffer, and a connection bar is formed widthwise across the slot to support the lead frame panel.

Abstract translation: 提供一种引线框带和使用其制造半导体封装的方法。 引线框架条包括至少一个引线框架板，其中多个单元引线框架被布置为以矩阵形式彼此连接，其中每个单元引线框架包括：待安装半导体芯片的管芯焊盘 ; 连接杆，其端部连接到管芯焊盘并被处理成不利的; 多个引线定位在与连接杆的另一端处于同一水平面并且从连接垫延伸预定距离; 形成在引线上并与导线结合以支撑引线的阻挡杆，其中，沿着引线框架板的边缘形成有槽，并且用作缓冲器，并且连接杆横跨所述槽形成以支撑引线框架 面板。