公开(公告)号：US5818509A

公开(公告)日：1998-10-06

申请号：US746979

申请日：1996-11-19

申请人： Hyo Joong Kim ,  Yong Seob Yoon

发明人： Hyo Joong Kim ,  Yong Seob Yoon

IPC分类号： H04L12/00 ,  H04N7/10 ,  H04N17/00

CPC分类号： H04N7/102

摘要： A line driving system according to the characteristic of a transmission medium is disclosed, including: a setup signal generator for generating a setup signal; an amplifier, connected to the setup signal generator, for amplifying an entire frequency band to a constant level, and changing the setup signal and a subscriber transmission signal; a frequency compensator, connected to the amplifier, for adjusting an amplification gain of a corresponding frequency; a line connector, connected to the frequency compensator and a cable, for connecting a driving signal to a transmission line medium; a setup signal receiver for receiving the transmitted setup signal; a clamp/signal detector, connected to the setup signal receiver, for detecting a (-) directional pulse signal of the setup signal, generating a signal clamped to a reference point, calculating a value based on a clamp level, and converting the value to a voltage value; a combination/discrimination/control generator connected to the amplifier and the frequency compensator, for generating a control signal adjusting an ampliation gain according to an output signal generated from the clamp/signal detector; and a system controller connected to the setup signal receiver and the clamp signal detector, for receiving the setup signal from a counterpart, requesting a setup, controlling the combination/discrimination/control generator, and managing the start and end of a setup procedure.

摘要翻译： 公开了一种根据传输介质的特征的线驱动系统，包括：用于产生建立信号的建立信号发生器; 连接到建立信号发生器的放大器，用于将整个频带放大到恒定电平，以及改变建立信号和用户发送信号; 频率补偿器，连接到放大器，用于调整相应频率的放大增益; 连接到频率补偿器的线连接器和用于将驱动信号连接到传输线介质的电缆; 用于接收所发送的建立信号的建立信号接收器; 连接到建立信号接收器的钳位/信号检测器，用于检测建立信号的（ - ）定向脉冲信号，产生钳位到参考点的信号，基于钳位电平计算值，并将该值转换为 电压值 连接到放大器和频率补偿器的组合/鉴别/控制发生器，用于根据从钳位/信号检测器产生的输出信号产生调节放大增益的控制信号; 以及连接到建立信号接收器和钳位信号检测器的系统控制器，用于从对方接收建立信号，请求建立，控制组合/鉴别/控制发生器，以及管理建立过程的开始和结束。

公开(公告)号：US07803460B2

公开(公告)日：2010-09-28

申请号：US12554448

申请日：2009-09-04

申请人： Jae Rock Lee ,  Seung Yong Jee ,  Hyo Joong Kim ,  Young Taik Hong ,  Seok Kim ,  Soo Jin Park

发明人： Jae Rock Lee ,  Seung Yong Jee ,  Hyo Joong Kim ,  Young Taik Hong ,  Seok Kim ,  Soo Jin Park

IPC分类号： B32B19/00

CPC分类号： D01D5/0076 ,  D01F6/80 ,  D01F6/90 ,  Y10T428/29 ,  Y10T428/2913 ,  Y10T428/2929 ,  Y10T428/298

摘要： A filament type nano-sized lone fiber and a method of producing the same are disclosed. In the method, a spinning solution or a spinning melt is electro-spun in drops using a spinneret to which a critical voltage is applied, and the spun drops are continuously collected on a multi-collector. The spinning solution is produced dissolving a blend or copolymer consisting of two or more kinds of polymers in a solvent. The spinning melt is produced by melting the polymers. The multi-collector is selected from the group consisting of a plate type collector, a roll type collector, and a combination thereof. The filament type nano-sized long fiber is processed into a yarn through one step during the electrospinning process, and thus, mechanical properties are better than those of conventional nanofiber non-woven fabric. Consequently, the filament type nano-sized long fiber can be utilized for the extended application.

摘要翻译： 公开了一种长丝型纳米尺寸的单纤维及其制造方法。 在该方法中，使用施加有临界电压的喷丝头，将纺丝溶液或纺丝熔体以滴液电纺丝，并将纺丝液滴连续收集在多收集器上。 制造的纺丝溶液是将由两种或更多种聚合物组成的共混物或共聚物溶解在溶剂中。 通过熔化聚合物制备纺丝熔体。 多集电体选自板式集电体，辊式集电体及其组合。 丝网型纳米长纤维在静电纺丝过程中通过一步加工成纱线，因此机械性能优于常规纳米纤维无纺布。 因此，长丝型纳米尺寸长纤维可用于扩展应用。

公开(公告)号：US5875007A

公开(公告)日：1999-02-23

申请号：US758152

申请日：1996-11-25

申请人： Chul Hyung Zhung ,  Hyo Joong Kim ,  Sung Soo Kang

发明人： Chul Hyung Zhung ,  Hyo Joong Kim ,  Sung Soo Kang

IPC分类号： H04N7/52 ,  H04N7/56 ,  H04N21/236 ,  H04N21/242 ,  H04N21/434 ,  H04N7/22

CPC分类号： H04N21/23608 ,  H04N21/242 ,  H04N21/4344 ,  H04N7/52 ,  H04N7/56

摘要： A motion image( MPEG II) video stream transmission system for transferring MPEG II video stream to a subscriber by receiving 6 channels of a motion image(MPEG II) video stream, and includes: a MPEG II encoder for encoding an analog video signal on a motion image video signal; a framer for framing and outputting a MPEG II video stream by controlling a read clock of pure data of the MPEG II video stream whenever data is variable, registering a transmission velocity information to a video stream inputted in the MPEG II encoder; a first multiplexing means; a second-stage multiplexer; a headend having an optical transmission means; an optical transmission system; a first-stage demultiplexing means; a second-stage demultiplexing means; a remote terminal having a video switching system; and a subscriber terminal apparatus for converting the MPEG II video signal into an analog signal after reframing a video signal outputted from the remote terminal and outputting the converted signal.

摘要翻译： 一种运动图像（MPEG II）视频流传输系统，用于通过接收6个运动图像（MPEG II）视频流来传送MPEG II视频流到用户，并且包括：MPEG II编码器，用于对模拟视频信号进行编码 运动图像视频信号; 一个成帧器，用于通过每当数据可变时控制MPEG II视频流的纯数据的读取时钟来对MPEG II视频流进行成帧和输出，将传输速度信息注册到MPEG II编码器中输入的视频流中; 第一复用装置; 第二级多路复用器; 具有光传输装置的前端; 光传输系统; 第一级解复用装置; 第二级解复用装置; 具有视频切换系统的远程终端; 以及用户终端装置，用于在重构从远程终端输出的视频信号之后将MPEG II视频信号转换为模拟信号，并输出转换的信号。