公开(公告)号：US07434249B2

公开(公告)日：2008-10-07

申请号：US10852285

申请日：2004-05-24

申请人： Se-Hong Park ,  Seong-Ha Kim ,  Gil-Yong Park ,  Tae-Sung Park

发明人： Se-Hong Park ,  Seong-Ha Kim ,  Gil-Yong Park ,  Tae-Sung Park

IPC分类号： H04N7/173 ,  H04J14/00 ,  H04B10/00

CPC分类号： H04J14/0282 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0234 ,  H04J14/0247 ,  H04J14/0252 ,  H04N7/10 ,  H04N7/17309 ,  H04N21/6118 ,  H04N21/6168

摘要： A fiber to the home (FTTH) system based on a passive optical network (PON) includes an optical line terminal (OLT) block, an optical network terminal (ONT) block, and an optical distribution network (ODN). The ONT block includes a video-optical line terminal (V-OLT) and an OLT to output optical signals of the V-OLT and the OLT by multiplexing the optical signals. The V-OLT receives cable TV (CATV), master antenna (MATV), and satellite broadcasting (SB) optical signals inputted from a broadcasting service network to output received signals as a first optical signal having a predetermined wavelength band. The ONT block includes a video-optical network terminal (V-ONT) and an (ONT) to split multiplexed data communications signals, and CATV broadcasting, MATV broadcasting, and (SB) optical signals. The V-ONT processes the split CATV broadcasting, MATV, and (SB) optical signals to provide subscribers with the split cable CATV, MATV and SB optical signals.

摘要翻译： 基于无源光网络（PON）的光纤到家庭（FTTH）系统包括光线路终端（OLT）块，光网络终端（ONT）块和光分配网（ODN）。 ONT块包括视频光线路终端（V-OLT）和OLT，通过复用光信号来输出V-OLT和OLT的光信号。 V-OLT接收从广播业务网络输入的有线电视（CATV），主天线（MATV）和卫星广播（SB）光信号，作为具有预定波段的第一光信号输出接收信号。 ONT块包括视频光网络终端（V-ONT）和（ONT）以分离复用数据通信信号，CATV广播，MATV广播和（SB）光信号。 V-ONT处理分离的CATV广播，MATV和（SB）光信号，为用户提供分离电缆CATV，MATV和SB光信号。

公开(公告)号：US07109466B2

公开(公告)日：2006-09-19

申请号：US10694976

申请日：2003-10-28

申请人： Gil-Yong Park ,  Hyeon-Cheol Ki ,  Yun-Je Oh ,  Tae-Sung Park ,  Shin-Hee Won ,  Seong-Ha Kim

发明人： Gil-Yong Park ,  Hyeon-Cheol Ki ,  Yun-Je Oh ,  Tae-Sung Park ,  Shin-Hee Won ,  Seong-Ha Kim

IPC分类号： H03F3/08 ,  H03K5/153

CPC分类号： H04B10/6933 ,  H04B10/6931

摘要： A peak detector for detecting a peak value of a burst signal in a burst mode optical receiver is disclosed, which comprises: an amplifying terminal configured to reduce an offset of a peak value in a received burst signal using feedback in the peak detector; a transistor that functions as a diode when a positive signal is received from the amplifying terminal; a peak hold capacitor for charging a peak value when the transistor received the positive signal; a signal amplitude detector to monitor the received burst signal amplitude; and a current source to drive a current responsive to the output signal amplitude detector.

摘要翻译： 公开了一种用于检测突发模式光接收机中的脉冲串信号的峰值的峰值检测器，其包括：放大终端，被配置为使用峰值检测器中的反馈减少接收的脉冲串信号中的峰值的偏移; 当从放大端子接收到正信号时用作二极管的晶体管; 用于在晶体管接收到正信号时对峰值进行充电的峰值保持电容; 信号幅度检测器，用于监视所接收的脉冲串信号幅度; 以及电流源，用于响应于输出信号幅度检测器驱动电流。

公开(公告)号：US07076177B1

公开(公告)日：2006-07-11

申请号：US09621009

申请日：2000-07-20

申请人： Kwang-Jin Yang ,  Jun-Ho Koh ,  Gil-Yong Park ,  Bong-Sin Kwark

发明人： Kwang-Jin Yang ,  Jun-Ho Koh ,  Gil-Yong Park ,  Bong-Sin Kwark

IPC分类号： H04B10/00 ,  H04B10/06 ,  H03K5/01

CPC分类号： H03K5/1534 ,  H04B10/66

摘要： A bit-rate independent optical receiver and a method thereof. In the bit-rate independent optical receiver, an optoelectric converter converts an input optical signal to an original electrical signal, a bit rate identifying unit forms a resultant signal by performing an exclusive-OR (XOR) logic operation on the original electrical signal received from the optoelectric converter and a second signal corresponding to the original electrical signal delayed by a predetermined quantity of time, and detects a bit rate from the resultant signal, a reference clock generator generates a reference clock signal according to the detected bit rate, and a clock and data recovery circuit recovers a clock signal and data from the input signal according to the reference clock signal.

摘要翻译： 一种比特率独立光接收机及其方法。 在比特率独立光接收机中，光电转换器将输入光信号转换为原始电信号，比特率识别单元通过对从原始电信号接收到的原始电信号执行异或（XOR）逻辑运算，形成合成信号 所述光电转换器和对应于原始电信号的第二信号延迟预定时间量，并且从所得到的信号中检测比特率，参考时钟发生器根据检测到的比特率产生参考时钟信号，并且产生时钟 并且数据恢复电路根据参考时钟信号从输入信号中恢复时钟信号和数据。

公开(公告)号：US07266312B2

公开(公告)日：2007-09-04

申请号：US10391670

申请日：2003-03-19

申请人： Hee-Chan Doh ,  Gil-Yong Park ,  Shin-Hee Won ,  Byung-Chang Kang ,  Tae-Sung Park ,  Hyeon-Cheol Ki

发明人： Hee-Chan Doh ,  Gil-Yong Park ,  Shin-Hee Won ,  Byung-Chang Kang ,  Tae-Sung Park ,  Hyeon-Cheol Ki

IPC分类号： H04B10/06

CPC分类号： H04L25/062 ,  H03G3/3084 ,  H04B10/695

摘要： A burst mode optical receiver is disclosed and includes a converter for converting a burst mode signal into a voltage signal, a bottom level detector for detecting a bottom level of an output signal from the converter, an automatic gain controller for automatically controlling the gain of the converter on the basis of the bottom level detected by the bottom level detector in order to maintain an amplitude of the output signal from the converter and generating a reset signal when the bottom level is lower than a predetermined reference value, and a power level detector for detecting a power level of the output signal from the converter and generating the reset signal and an LOS signal indicative of the presence of no input signal when the detected power level is lower than a predetermined reference value.

摘要翻译： 公开了一种突发模式光接收机，包括用于将突发模式信号转换为电压信号的转换器，用于检测来自转换器的输出信号的底部电平的底部电平检测器，用于自动控制转换器的增益的自动增益控制器 转换器，其基于由底部电平检测器检测到的底部电平，以便保持来自转换器的输出信号的幅度，并且当底部电平低于预定参考值时产生复位信号;以及功率电平检测器，用于 当所检测的功率电平低于预定参考值时，检测来自转换器的输出信号的功率电平并产生复位信号和指示无输入信号的存在的LOS信号。

公开(公告)号：US20060176835A1

公开(公告)日：2006-08-10

申请号：US11340967

申请日：2006-01-26

申请人： Soon-Ho Jang ,  Chang-Sup Shim ,  Yun-Je Oh ,  Tae-Sung Park ,  Seong-Ha Kim ,  Se-Hong Park ,  Yu-Gun Kim ,  Dong-Il Seo ,  Jung-Hwan Lim ,  Jun-Sung An ,  Sung-Il Sohn ,  Se-Kang Park ,  Do-Young Joung ,  Su-Hyung Kim ,  Gil-Yong Park

发明人： Soon-Ho Jang ,  Chang-Sup Shim ,  Yun-Je Oh ,  Tae-Sung Park ,  Seong-Ha Kim ,  Se-Hong Park ,  Yu-Gun Kim ,  Dong-Il Seo ,  Jung-Hwan Lim ,  Jun-Sung An ,  Sung-Il Sohn ,  Se-Kang Park ,  Do-Young Joung ,  Su-Hyung Kim ,  Gil-Yong Park

IPC分类号： H04L12/56 ,  H04Q11/00 ,  H04L12/16 ,  H04L12/28

CPC分类号： H04Q11/0067 ,  H04H20/02 ,  H04H20/69 ,  H04H60/15 ,  H04H60/16 ,  H04L12/1836 ,  H04L45/16 ,  H04Q2011/0088

摘要： A solution for allowing conditional access to IP-based broadcast services in a passive optical network is disclosed. When a subscriber requests broadcast services by selecting a broadcast channel, an IP set-top converts the request into an IGMP join message and forwards the message to an ONU/ONT, a unit on the subscriber's side. The ONU/ONT delivers the message to an OLT interworking with a router while storing mapping information of the port that received the message and a MAC address of the selected channel. Thereafter, the OLT extracts information on MAC address of the IP set-top box and the requested broadcast data. The OLT compares the extracted information to the subscriber's subscription information and determines whether to provide the requested broadcast services. If the broadcast services may be provided, the broadcast data provided from the broadcast server is transmitted to the IP set-top box via ONU/ONT based on the stored mapping information.

摘要翻译： 公开了一种允许在无源光网络中对基于IP的广播服务进行条件访问的解决方案。 当用户通过选择广播信道来请求广播业务时，IP机顶盒将该请求转换成IGMP加入消息，并将该消息转发给订户侧的ONU / ONT单元。 ONU / ONT将消息传递到与路由器互通的OLT，同时存储接收到消息的端口的映射信息和所选信道的MAC地址。 此后，OLT提取关于IP机顶盒的MAC地址和所请求的广播数据的信息。 OLT将提取的信息与订户的订阅信息进行比较，并确定是否提供所请求的广播服务。 如果可以提供广播服务，则从广播服务器提供的广播数据基于存储的映射信息经由ONU / ONT被发送到IP机顶盒。

公开(公告)号：US20050172328A1

公开(公告)日：2005-08-04

申请号：US10852285

申请日：2004-05-24

申请人： Se-Hong Park ,  Seong-Ha Kim ,  Gil-Yong Park ,  Tae-Sung Park

发明人： Se-Hong Park ,  Seong-Ha Kim ,  Gil-Yong Park ,  Tae-Sung Park

IPC分类号： H04N7/22 ,  H04J14/02 ,  H04N7/173 ,  H04J14/00

CPC分类号： H04J14/0282 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0234 ,  H04J14/0247 ,  H04J14/0252 ,  H04N7/10 ,  H04N7/17309 ,  H04N21/6118 ,  H04N21/6168

摘要： A fiber to the home (FTTH) system based on a passive optical network (PON) includes an optical line terminal (OLT) block, an optical network terminal (ONT) block, and an optical distribution network (ODN). The ONT block includes a video-optical line terminal (V-OLT) and an optical line terminal (OLT) in order to output optical signals of the video-optical line terminal (V-OLT) and the optical line terminal (OLT) by multiplexing the optical signals. The VOLT receives cable TV, master antenna TV, and satellite broadcasting optical signals inputted from a broadcasting service network so as to output received signals as a first optical signal having a predetermined wavelength band. The OLT includes a first downstream data optical transmitter and a first upstream data optical receiver and outputs a data communication signal inputted from a data service network as a second optical signal having different wavelength from the video-optical line terminal. The ONT block includes a video-optical network terminal (V-ONT) and an optical network terminal (ONT) in order to split multiplexed data communication signals, and cable TV broadcasting, master antenna TV broadcasting, and satellite broadcasting optical signals. The V-ONT processes the split cable TV broadcasting, master antenna TV and satellite broadcasting optical signals so as to provide subscribers with the split cable TV broadcasting, master antenna TV and satellite broadcasting optical signals. The optical network terminal (ONT) has an upstream data optical transmitter and a downstream data optical receiver so as to process split data communication signals. The optical distribution network (ODN) connects the optical line terminal block to the optical network terminal as an optical transmission medium.

摘要翻译： 基于无源光网络（PON）的光纤到家庭（FTTH）系统包括光线路终端（OLT）块，光网络终端（ONT）块和光分配网（ODN）。 ONT块包括视频光线路终端（V-OLT）和光线路终端（OLT），以便通过以下方式输出视频光线路终端（V-OLT）和光线路终端（OLT）的光信号 复用光信号。 VOLT接收从广播服务网络输入的有线电视，主天线电视和卫星广播光信号，以输出接收信号作为具有预定波段的第一光信号。 OLT包括第一下行数据光发送器和第一上游数据光接收器，并输出从数据服务网络输入的数据通信信号作为与视频光线路终端具有不同波长的第二光信号。 ONT块包括视频光网络终端（V-ONT）和光网络终端（ONT），以便分离复用数据通信信号，有线电视广播，主天线电视广播和卫星广播光信号。 V-ONT处理分裂有线电视广播，主天线电视和卫星广播光信号，为用户提供分裂有线电视广播，主天线电视和卫星广播光信号。 光网络终端（ONT）具有上行数据光发射机和下行数据光接收机，以处理分离的数据通信信号。 光分配网络（ODN）将光线路终端块作为光传输介质连接到光网络终端。

公开(公告)号：US07206521B2

公开(公告)日：2007-04-17

申请号：US10406466

申请日：2003-04-03

申请人： Hee-Chan Doh ,  Gil-Yong Park ,  Shin-Hee Won ,  Yun-Je Oh ,  Tae-Sung Park ,  Hyeon-Cheol Ki

发明人： Hee-Chan Doh ,  Gil-Yong Park ,  Shin-Hee Won ,  Yun-Je Oh ,  Tae-Sung Park ,  Hyeon-Cheol Ki

IPC分类号： H04B10/06

CPC分类号： H04B10/695

摘要： In an optical receiver having a pre-amplifier for converting a current signal outputted from an optical detector to a voltage signal, a signal level detecting device is provided to provide an LOS (loss of signal) signal and a reset signal from the output of the pre-amplifier. The signal level detecting device comprising: a capacitor for receiving the output from the pre-amplifier; first and second transistors each consisting of an emitter and a collector connected to the output of the pre-amplifier and a base connected to the collector; a third transistor having a collector connected to the collector of the first transistor and an emitter connected to the collector of the second transistor; and, a common emitter circuit with a pair of resistors connected, respectively, to the emitter and collector of the third transistor and capable of detecting the level of a signal inputted from the collector of the third transistor.

摘要翻译： 在具有用于将从光学检测器输出的电流信号转换为电压信号的前置放大器的光接收机中，提供信号电平检测装置，以提供信号电平检测装置，以提供来自信号的输出的LOS（信号丢失）信号和复位信号 前置放大器 信号电平检测装置包括：用于接收来自前置放大器的输出的电容器; 第一和第二晶体管每个由连接到前置放大器的输出的发射极和集电极组成，以及连接到集电极的基极; 第三晶体管，其具有连接到第一晶体管的集电极的集电极和连接到第二晶体管的集电极的发射极; 以及具有分别连接到第三晶体管的发射极和集电极的一对电阻器并且能够检测从第三晶体管的集电极输入的信号的电平的公共发射极电路。

公开(公告)号：US07330670B2

公开(公告)日：2008-02-12

申请号：US10391704

申请日：2003-03-19

申请人： Hee-Chan Doh ,  Hyeon-Cheol Ki ,  Yun-Je Oh ,  Gil-Yong Park ,  Tae-Sung Park ,  Shin-Hee Won

发明人： Hee-Chan Doh ,  Hyeon-Cheol Ki ,  Yun-Je Oh ,  Gil-Yong Park ,  Tae-Sung Park ,  Shin-Hee Won

IPC分类号： H04B10/06

CPC分类号： H04L25/061 ,  H03G3/3047 ,  H04B10/695

摘要： A bottom level detection device is disclosed for a burst mode optical receiver. The receiver includes a converter for converting a burst mode signal into a voltage signal and an automatic gain controller for automatically controlling a gain of the converter. The bottom level detection device detects a bottom level of an output signal from the converter and controls the automatic gain controller on the basis of the detected bottom level. The bottom level detection device includes an amplification circuit for receiving the output signal from the converter at its first input terminal and a fed-back output signal from the device at its second input terminal, respectively, and amplifying a difference between the received signals, a detector for detecting a bottom level of an output signal from the amplification circuit, and an output buffer. The detector includes an RC rectifier for receiving a power supply voltage, and a transistor having its emitter connected to an output terminal of the amplification circuit and its base and collector connected in common to the RC rectifier.

摘要翻译： 公开了一种用于突发模式光接收机的底层检测装置。 接收机包括用于将突发模式信号转换为电压信号的转换器和用于自动控制转换器增益的自动增益控制器。 底部电平检测装置检测来自转换器的输出信号的底部电平，并且基于检测到的底部电平来控制自动增益控制器。 底层检测装置包括：放大电路，用于在其第一输入端接收来自转换器的输出信号，以及分别从其第二输入端的装置反馈输出信号，并放大接收信号之间的差 检测器，用于检测来自放大电路的输出信号的底部电平，以及输出缓冲器。 检测器包括用于接收电源电压的RC整流器，以及其发射极连接到放大电路的输出端并且其基极和集电极共同连接到RC整流器的晶体管。

公开(公告)号：US07218865B2

公开(公告)日：2007-05-15

申请号：US10413979

申请日：2003-04-15

申请人： Hee-Chan Doh ,  Hyeon-Cheol Ki ,  Yun-Je Oh ,  Gil-Yong Park ,  Tae-Sung Park ,  Shin-Hee Won

发明人： Hee-Chan Doh ,  Hyeon-Cheol Ki ,  Yun-Je Oh ,  Gil-Yong Park ,  Tae-Sung Park ,  Shin-Hee Won

IPC分类号： H04B10/06

CPC分类号： H04L25/062

摘要： A burst-mode optical receiver of a differential-output structure is disclosed. The burst-mode optical receiver includes a trans-impedance amplifier for converting currents indicating the burst-mode signals into voltage signals, a bottom-level detector for detecting the bottom level of signals outputted from the trans-impedance amplifier, an automatic gain controller for automatically adjusting a gain to prevent the output waveforms of the tran-simpedance amplifier from being distorted after receiving the bottom-level signals detected by the bottom-level detector, a top-level detector for detecting the top level of signals outputted from the trans-impedance amplifier, a pair of resistors for generating a signal-reference voltage from the bottom- and top-level voltages, one side of each resistor being connected to the bottom- and top-level detectors, respectively, and the other sides of each resistor being connected to each other, and a differential buffer for receiving outputs from the trans-impedance amplifier and the signal-reference voltage from the pair of resistors and for eliminating the offsets generated from the bottom- and top-level detectors in order to supply two differential outputs.

摘要翻译： 公开了差分输出结构的突发模式光接收机。 突发模式光接收机包括用于将指示突发模式信号的电流转换成电压信号的跨阻放大器，用于检测从跨阻放大器输出的信号的底电平的底电平检测器，用于 自动调整增益以防止在接收到由底层检测器检测到的底层信号之后，反相放大器的输出波形失真，用于检测从反相放大器输出的信号的顶层信号的顶级检测器， 阻抗放大器，一对电阻，用于从底层和顶层电压产生信号参考电压，每个电阻的一侧分别连接到底层和顶层检测器，每个电阻的另一侧 彼此连接的差分缓冲器和用于接收来自所述跨阻放大器的输出的差分缓冲器和来自所述一对res的所述信号参考电压 并且用于消除从底层和顶级检测器产生的偏移，以便提供两个差分输出。

公开(公告)号：US06911644B2

公开(公告)日：2005-06-28

申请号：US10389058

申请日：2003-03-14

申请人： Hee-Chan Doh ,  Gil-Yong Park ,  Shin-Hee Won ,  Yun-Je Oh ,  Tae-Sung Park ,  Hyeon-Cheol Ki

发明人： Hee-Chan Doh ,  Gil-Yong Park ,  Shin-Hee Won ,  Yun-Je Oh ,  Tae-Sung Park ,  Hyeon-Cheol Ki

IPC分类号： H03F3/08 ,  H03G3/20 ,  H03G3/30 ,  H04B10/07 ,  H04B10/2507 ,  H04B10/272 ,  H04B10/293 ,  H04B10/40 ,  H04B10/50 ,  H04B10/524 ,  H04B10/54 ,  H04B10/564 ,  H04B10/572 ,  H04B10/58 ,  H04B10/60 ,  H04B10/69 ,  H01L31/00

CPC分类号： H03G3/3084

摘要： An automatic-gain-control device in an optical receiver is provided and includes a pre-amplifier for converting a current signal outputted from an optical detector to a voltage signal and a bottom level detector for detecting the bottom level from the output of the pre-amplifier, the automatic-gain-control device comprising a bottom signal-level-determining section for analyzing the bottom level from the bottom level detector and outputting a signal denoting the presence of a signal and a reset signal for initialization at intervals between packets; and an automatic-gain-control signal generating section for providing an automatic-gain-control signal by showing the presence of a signal, the automatic-gain-control-signal-generating section including a first transistor which turns on according to a signal from the bottom signal-level-determining section and a second transistor which is connected to a capacitor for charging or discharging a voltage applied by the first transistor, and the drain voltage of which becomes low when the capacitor is charged but becomes high when the capacitor is discharged.

摘要翻译： 提供了一种光接收机中的自动增益控制装置，包括：用于将从光学检测器输出的电流信号转换为电压信号的前置放大器;以及用于从预测电路的输出检测底部电平的底部电平检测器， 放大器，该自动增益控制装置包括底部信号电平确定部分，用于从底部电平检测器分析底部电平，并且输出表示存在信号的信号和用于在分组之间的间隔进行初始化的复位信号; 以及自动增益控制信号生成部，其通过显示信号的存在来提供自动增益控制信号，所述自动增益控制信号生成部包括：第一晶体管，其根据来自 底部信号电平确定部分和第二晶体管，其连接到用于对由第一晶体管施加的电压进行充电或放电的电容器，并且当电容器充电时其漏极电压变低，当电容器为 出院