专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07109466B2 Peak and bottom detectors in burst mode optical receiver 失效
标题翻译：突发模式光接收机中的峰值和底部检测器
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。

2. 发明授权

US07206521B2 Signal level detecting device for a burst-mode optical receiver 有权
标题翻译：用于突发模式光接收机的信号电平检测装置
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。

3. 发明授权

US07330670B2 Bottom level detection device for burst mode optical receiver 有权
标题翻译：突发模式光接收机底层检测装置
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。

4. 发明授权

US07218865B2 Burst-mode optical receiver of differential output structure 有权
标题翻译：差分输出结构的突发模式光接收机
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。

5. 发明授权

US06911644B2 Automatic gain control device for a burst-mode optical receiver 失效
标题翻译：用于突发模式光接收机的自动增益控制装置
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

6. 发明授权

US06909082B2 Automatic threshold control device for burst mode optical receiver 失效
标题翻译：突发模式光接收机的自动阈值控制装置
公开(公告)号：US06909082B2
公开(公告)日：2005-06-21
申请号：US10396198
申请日：2003-03-25
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： H03F3/45 , H04B10/07 , H04B10/272 , H04B10/40 , H04B10/50 , H04B10/516 , H04B10/524 , H04B10/564 , H04B10/58 , H04B10/60 , H04B10/61 , H04B10/69 , H04L25/06 , H01J40/14
CPC分类号： H04B10/695 , H04B10/6931 , H04L25/062
摘要： An automatic threshold control device for a burst mode optical receiver is disclosed. The receiver includes a converter that converts a burst mode signal into a voltage signal and an automatic gain controller for automatically controlling a gain of the converter, independently generating a reset signal and applying it to the automatic threshold control device. The automatic threshold control device is adapted to detect a voltage level of an output signal from the converter. The device includes a peak detector that detects a peak level of the output signal from the converter in response to the reset signal, a bottom level detector that detects a bottom level of the output signal from the converter in response to the reset signal, a pair of resistors having their one sides connected respectively to the peak detector and bottom level detector and their other sides connected to each other, the resistors generating a reference voltage on the basis of voltages of the peak level and bottom level, and a capacitor for storing the reference voltage.
摘要翻译：公开了一种用于突发模式光接收机的自动阈值控制装置。接收机包括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，独立产生复位信号并将其应用于自动阈值控制装置。自动阈值控制装置适于检测来自转换器的输出信号的电压电平。该装置包括峰值检测器，其响应于复位信号检测来自转换器的输出信号的峰值电平;底部电平检测器，其响应于复位信号检测来自转换器的输出信号的底部电平，一对电阻器的一侧分别连接到峰值检测器和底部电平检测器，并且它们的另一侧彼此连接，电阻器基于峰值电平和底部电平的电压产生参考电压，以及用于存储参考电压。

7. 发明授权

US07266312B2 Burst mode optical receiver 有权
标题翻译：突发模式光接收机
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。

8. 发明申请

US20060176835A1 System and method for providing internet protocol based broadcast services 审中-公开
标题翻译：提供基于互联网协议的广播服务的系统和方法
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。

9. 发明授权

US06934474B2 Bidirectional add/drop multiplexer 失效
标题翻译：双向分插复用器
公开(公告)号：US06934474B2
公开(公告)日：2005-08-23
申请号：US09946206
申请日：2001-09-05
申请人： Kwan-Woong Song , Tae-Sung Park , Shin-Hee Won , Yun-Je Oh
发明人： Kwan-Woong Song , Tae-Sung Park , Shin-Hee Won , Yun-Je Oh
IPC分类号： G02B6/12 , G02B6/28 , G02B6/293 , H04B10/00 , H04B10/2507 , H04B10/27 , H04B10/29 , H04J14/00 , H04J14/02
CPC分类号： H04J14/0216 , H04J14/0213
摘要： The present invention is directed to a bidirectional add/drop multiplexer connected with waveguides at opposite ends thereof, respectively, and adapted to add/drop a channel in forward and reverse directions. The multiplexer includes a forward arrayed waveguide grating for demultiplexing the respective channels of the forward optical signal inputted thereto, for adding or dropping a channel to the demultiplexed channels of the forward optical signal, and for multiplexing the channel-added or dropped channels; a reverse arrayed waveguide grating for demultiplexing respective channels of the reverse optical signal inputted thereto, for adding or dropping a channel to the demultiplexed channels of the reverse optical signal, and for multiplexing the channel-added or dropped channels; a first circulator for inputting the forward optical signal to the forward waveguide grating and outputting the reverse optical signal received from the reverse waveguide grating to one of the waveguides, and, a second circulator for inputting the reverse optical signal to the forward waveguide grating and outputting the forward optical signal received from the forward waveguide grating to the other waveguide. Using this arrangement, the bidirectional add/drop multiplexer is capable of cutting off the relative intensity noise while avoiding the collision of the forward and reverse optical signals.
摘要翻译：本发明涉及一种双向分插复用器，分别与其波导在其相对端连接，并且适于在正向和反向上加/减通道。多路复用器包括一个前向阵列波导光栅，用于对输入到其中的正向光信号的各个信道进行解复用，以将信道添加或丢弃到正向光信号的解复用信道，并用于多路复用通道添加或丢弃的信道; 反向阵列波导光栅，用于对输入到其中的反向光信号的各个通道进行解复用，用于将信道添加或丢弃到反向光信号的解复用信道，并用于复用通道添加或丢弃的信道; 第一循环器，用于将前向光信号输入到前向波导光栅，并将从反向波导光栅接收的反向光信号输出到波导中的一个;以及第二循环器，用于将反向光信号输入到正向波导光栅并输出从正向波导光栅接收的正向光信号到另一个波导。使用这种布置，双向分插复用器能够在避免正向和反向光信号的冲突的同时切断相对强度噪声。

10. 发明授权

US06580263B2 Bit rate discrimination device with temperature compensation function 失效
公开(公告)号：US06580263B2
公开(公告)日：2003-06-17
申请号：US09929885
申请日：2001-08-15
申请人： Jeong-Seok Choi , Tae-Sung Park , Hee-Chan Doh , Gil-Yong Park , Yun-Je Oh
发明人： Jeong-Seok Choi , Tae-Sung Park , Hee-Chan Doh , Gil-Yong Park , Yun-Je Oh
IPC分类号： G01R3100
CPC分类号： H04B10/07953
摘要： Disclosed is a bit rate discrimination device that accurately discriminates a bit rate regardless of variations in the operating temperature. A photoelectric converter converts an input optical signal into an electric signal, and a bit rate detector detects a bit rate of the optical signal from the electric signal and outputs a discrimination signal indicating the bit rate. A DC amplifier outputs a bit rate detection signal by amplifying the discrimination signal, and a temperature detector detects the operating temperature of the DC amplifier and outputs a temperature signal indicating the detected operating temperature. A variation amplifier outputs a temperature compensation signal by amplifying the voltage level difference between the temperature signal and a predetermined reference signal, so as to cancel variations in an output voltage of the DC amplifier according to the operating temperature. A voltage adder outputs a temperature-compensated bit rate detection signal by combining the bit rate detection signal with the temperature compensation signal. A bit rate discriminator determines the bit rate of the input optical signal depending on the voltage level of the temperature-compensated bit rate detection signal.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式