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1. 发明授权

US07844185B2 Method and apparatus for suppressing optical surge in optical burst switching network 失效
标题翻译：用于抑制光突发交换网络中的光浪涌的方法和装置
公开(公告)号：US07844185B2
公开(公告)日：2010-11-30
申请号：US11264165
申请日：2005-11-02
申请人： Keun-joo Park , Hyun-chin Kim , June-koo Rhee , Young-kwang Seo , Chun-ju Youn
发明人： Keun-joo Park , Hyun-chin Kim , June-koo Rhee , Young-kwang Seo , Chun-ju Youn
IPC分类号： H04B10/12
CPC分类号： H04B10/564 , H04B10/077 , H04B10/07955
摘要： Apparatuses and methods are provided which suppress a surge component occurring at an optical amplifier on an optical path through which an optical burst signal is transmitted. An optical amplifier may experience a surge due to the power variation of the optical burst signal that is fed to the optical amplifier. To suppress such a surge component, a power corresponding to a number of wavelengths of an optical burst signal to be input is calculated. The optical amplifier is instructed to generate an optical signal with a power corresponding to a difference between a set value and the calculated power. The generated optical signal and the optical burst signal to be input are coupled and output according to the instruction. Thus, the optical amplifier can receive the optical signal with the constant power and the surge component at the optical amplifier can be suppressed.
摘要翻译：提供的装置和方法，其抑制在发送光猝发信号的光路上的光放大器处发生的浪涌分量。由于馈送到光放大器的光猝发信号的功率变化，光放大器可能经历浪涌。为了抑制这种浪涌分量，计算与要输入的光猝发信号的波长数相对应的功率。指示光放大器产生具有与设定值和计算功率之间的差对应的功率的光信号。所生成的光信号和要输入的光突发信号根据该指令进行耦合和输出。因此，光放大器可以以恒定功率接收光信号，并且可以抑制光放大器处的浪涌元件。

2. 发明申请

US20080247403A1 NETWORK BRIDGE APPARATUS AND COMMUNICATION METHOD THEREOF 审中-公开
标题翻译：网络桥设备及其通信方法
公开(公告)号：US20080247403A1
公开(公告)日：2008-10-09
申请号：US11939602
申请日：2007-11-14
申请人： Young-kwang SEO , Hun-gu LEE , Hyun-chin KIM , Keun-joo PARK , Yeong-bae YEO
发明人： Young-kwang SEO , Hun-gu LEE , Hyun-chin KIM , Keun-joo PARK , Yeong-bae YEO
IPC分类号： H04L12/66
CPC分类号： H04L12/2832 , H04L2012/2849
摘要： A network bridge apparatus and a communication method using the network bridge apparatus are provided. In the network bridge apparatus, a storage stores first attribute information which is provided by a first device of a first cluster for communication, an external communicator transmits the stored first attribute information to a second cluster and receives second attribute information which is provided by a second device of the second cluster for communication, from the second cluster, and a controller recognizes a service provided by the second device from the received second attribute information, creates a virtual device corresponding to the second device by changing the received second attribute information, and maps the changed second attribute information to the received second attribute information.
摘要翻译：提供一种使用网桥装置的网桥装置和通信方法。在网桥装置中，存储器存储由第一集群的第一装置提供的用于通信的第一属性信息，外部通信器将存储的第一属性信息发送到第二集群，并接收由第二集群提供的第二属性信息用于通信的第二集群的设备，并且控制器从所接收的第二属性信息识别由第二设备提供的服务，通过改变所接收的第二属性信息来创建与第二设备相对应的虚拟设备，并且映射改变的第二属性信息到接收到的第二属性信息。

3. 发明申请

US20080178228A1 COMMUNICATION SYSTEM FOR HOME NETWORKING 审中-公开
标题翻译：家庭网络通信系统
公开(公告)号：US20080178228A1
公开(公告)日：2008-07-24
申请号：US11870555
申请日：2007-10-11
申请人： Keun-joo PARK , Hyun-chin Kim , Young-kwang Seo , Yeong-bae Yeo
发明人： Keun-joo PARK , Hyun-chin Kim , Young-kwang Seo , Yeong-bae Yeo
IPC分类号： H04N7/18 , H04N7/16
CPC分类号： H04N21/43615 , H04L12/2838 , H04L12/40117 , H04N7/10 , H04N7/104 , H04N21/43632 , H04N21/43637
摘要： A communication system for home networking, the home networking communication system including: a plurality of repeaters that are respectively provided in some zones from among a plurality of zones, a splitter that is connected to the plurality of repeaters through a coaxial cable, and a hub that is provided in one zone from among the plurality of zones, is connected to the splitter through the coaxial cable, and relays data communication between the plurality of repeaters. Accordingly, a cost for installation is reproduced and an installation of the communication system is more convenient.
摘要翻译：一种用于家庭网络的通信系统，所述家庭网络通信系统包括：分别设置在多个区域中的一些区域中的多个中继器，通过同轴电缆连接到所述多个中继器的分离器，以及集线器设置在多个区域中的一个区域中，通过同轴电缆连接到分离器，并且中继多个转发器之间的数据通信。因此，再现安装成本，并且通信系统的安装更方便。

4. 发明授权

US07257324B2 Apparatus for monitoring optical signal-to-noise ratio 有权
标题翻译：用于监测光信噪比的装置
公开(公告)号：US07257324B2
公开(公告)日：2007-08-14
申请号：US10724072
申请日：2003-12-01
申请人： Yun Chur Chung , Chun Ju Youn , Keun Joo Park , Jun Haeng Lee
发明人： Yun Chur Chung , Chun Ju Youn , Keun Joo Park , Jun Haeng Lee
IPC分类号： H04B10/08 , H04B10/00
CPC分类号： H04B10/077 , H04B10/07955
摘要： Disclosed is an apparatus for monitoring an optical signal-to-noise ratio in a WDM optical network. The apparatus includes an orthogonal polarization component module for receiving an optical signal and outputting it after removing a signal component thereof at a specific frequency band; and calculation means for measuring both average signal and noise component intensity of the optical signal outputted from the orthogonal polarization component module. By removing a signal component at a specific frequency bandwidth and passing only a noise component through, it is possible to easily measure the noise intensity within a signal bandwidth that cannot be measured in general. A frequency band is set within a signal bandwidth, and the signal intensity is minimized at the set frequency band, so that it is possible to measure the optical signal-to-noise ratio even for a signal whose amplified spontaneous emission noise spectrum is not flat, irrespective of the signal pattern length.
摘要翻译：公开了一种在WDM光网络中监视光信噪比的装置。该装置包括：正交偏振分量模块，用于在去除其特定频带的信号分量之后接收光信号并输出; 以及用于测量从正交偏振分量模块输出的光信号的平均信号和噪声分量强度的计算装置。通过去除特定频率带宽的信号分量并仅通过噪声分量，可以容易地测量一般不能测量的信号带宽内的噪声强度。在信号带宽内设置频带，信号强度在设定频带处被最小化，使得即使对于放大的自发发射噪声谱不平坦的信号也可以测量光信噪比，不管信号图案长度如何。

5. 发明授权

US07123788B2 Apparatus for monitoring optical frequencies of WDM signals 失效
公开(公告)号：US07123788B2
公开(公告)日：2006-10-17
申请号：US10139469
申请日：2002-05-06
申请人： Yeun Chol Jung , Cheon Joo Yoon , Seung Gyun Shin , Keun Joo Park
发明人： Yeun Chol Jung , Cheon Joo Yoon , Seung Gyun Shin , Keun Joo Park
IPC分类号： G02B6/28
CPC分类号： H04B10/0775 , H04B2210/075 , H04J14/02
摘要： The present invention relates to a wavelength division multiplexed (WDM) apparatus for monitoring optical frequencies, allowing optical channel frequency monitoring using the crossover property of an arrayed-waveguide grating and pilot tones that are in wide use in optical communication networks and enhancing efficiency of operation, maintenance, and management of WDM optical communication networks.The present invention provides a WDM apparatus for monitoring optical frequencies comprising optical demultiplexing means for optically demultiplexing optical signals including externally added pilot tone signals, photo-detecting means for photo-electrically converting the output of said optical demultiplexing means, and frequency estimating means for estimating the frequency of the optical signals by measuring the amplitudes of the pilot tones from the output of said photo-detecting means.

6. 发明授权

US07095551B2 Wavelength converter for generating wavelength tunable laser optical source in itself 有权
标题翻译：用于产生波长可调激光光源本身的波长转换器
公开(公告)号：US07095551B2
公开(公告)日：2006-08-22
申请号：US11296332
申请日：2005-12-08
申请人： Young-kwang Seo , Hyun-chin Kim , Hyun-surk Ryu , June-koo Rhee , Keun-joo Park , Chun-ju Youn
发明人： Young-kwang Seo , Hyun-chin Kim , Hyun-surk Ryu , June-koo Rhee , Keun-joo Park , Chun-ju Youn
IPC分类号： G02F1/365 , G02F2/02
CPC分类号： H01S5/50 , G02F2/004 , G02F2002/006 , H01S5/005 , H01S5/5027 , H01S5/509
摘要： A wavelength converter for generating a wavelength tunable laser optical source in itself is disclosed. The wavelength converter includes a first semiconductor optical amplifier for generating an optical noise, generating and outputting a first optical source by amplifying the generated optical noise if an external current is applied, first and second distributed Bragg reflectors for reflecting only a component of a specified wavelength range among components of the optical noise and applying the reflected component to the first semiconductor optical amplifier, and a second semiconductor optical amplifier for receiving an optical source divided from the optical source reflected by and outputted from the first distributed Bragg reflector and an input data optical source, generating and outputting a second optical source by changing a phase of the divided optical source according to a digital signal from the input data optical source. The first and second optical sources outputted from the first and second semiconductor optical amplifiers are added together, and a signal of which the wavelength is converted through either a constructive interference or a destructive interference of the added first and second optical sources is outputted.
摘要翻译：本发明公开了一种用于产生波长可调激光光源的波长转换器。波长转换器包括用于产生光学噪声的第一半导体光放大器，如果施加了外部电流则通过放大产生的光学噪声来产生和输出第一光源;第一和第二分布式布拉格反射器，仅用于仅反射指定波长的分量光学噪声的分量之间的范围，并将反射分量施加到第一半导体光放大器，以及第二半导体光放大器，用于接收从第一分布式布拉格反射器反射并从其输出的光源划分的光源和输入数据光源，通过根据来自输入数据光源的数字信号改变分割光源的相位来产生和输出第二光源。从第一和第二半导体光放大器输出的第一和第二光源相加在一起，并且输出通过相加的第一和第二光源的相长干涉或相消干涉而波长转换的信号。

7. 发明申请

US20060140184A1 Method for void-filling and transmitting burst data over optical burst switching network 失效
标题翻译：通过光突发交换网络进行空隙填充和发送突发数据的方法
公开(公告)号：US20060140184A1
公开(公告)日：2006-06-29
申请号：US11315005
申请日：2005-12-23
申请人： Chun-ju Youn , Young-kwang Seo , Hyun-chin Kim , Keun-joo Park , June-koo Rhee
发明人： Chun-ju Youn , Young-kwang Seo , Hyun-chin Kim , Keun-joo Park , June-koo Rhee
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L47/32
摘要： A method for enhancing transmission efficiency of burst data by estimating a void between burst data and filling the void with new burst data in an optical burst switching (OBS) network. To this end, a node in the OBS network receives burst data (BD) aggregated from data packets, and a burst control packet (BCP) that is received prior to the BD by an offset time. The BCP contains information relating to the offset time and the BD. To predict the void between the BDs, a void filling time is defined within the offset time using the BCP. The present invention provides the method for determining whether to fill the void and filling the void by directly monitoring the BD over a preset time.
摘要翻译：一种用于通过估计突发数据之间的空隙并在光突发交换（OBS）网络中用新的突发数据填充空隙的方法来提高突发数据的传输效率。为此，OBS网络中的节点接收从数据分组聚合的突发数据（BD）和在BD之前接收偏移时间的突发控制分组（BCP）。 BCP包含有关偏移时间和BD的信息。为了预测BD之间的空隙，使用BCP在偏移时间内定义空隙填充时间。本发明提供了通过在预设时间内直接监视BD来确定是否填充空隙并填充空隙的方法。

8. 发明授权

US07068949B2 Multi-wavelength locking method and apparatus for wavelength division multiplexing (WDM) optical communication system 失效
公开(公告)号：US07068949B2
公开(公告)日：2006-06-27
申请号：US09799537
申请日：2001-03-07
申请人： Yeun Chol Jung , Keun Joo Park , Seung Gyun Shin , Ho Chul Ji
发明人： Yeun Chol Jung , Keun Joo Park , Seung Gyun Shin , Ho Chul Ji
IPC分类号： H04J14/02 , H04B10/04 , H01S3/13
CPC分类号： H04B10/506 , H01S5/0687 , H01S5/4087 , H04B10/572 , H04J14/02
摘要： Disclosed is a multi-wavelength locking method for a wavelength division multiplexing (WDM) optical communication network, and in particular, a multi-wavelength locking method and apparatus for a WDM optical communication system that can lock wavelengths of optical signals by producing pilot tones by applying a sine-wave current to a plurality of transmission lasers having different wavelengths, passing the optical signal through a Fabry-Perot etalon filter, and then Fourier-transforming the filtered optical signal. The multi-wavelength locking method includes frequency-modulating an optical signal by applying a small and specified sine-wave current to a bias current for driving WDM lasers, detecting pilot tones produced after filtering the optical signal through a filtering section and converting the detected signal into a digital signal by performing a sampling of the detected signal, detecting a magnitude and phase of the pilot tones by performing a fast Fourier transform, providing Fourier-transformed data as a first derivative signal of the filtering section, and locking an operation wavelength of WDM channels by controlling the temperature or current if resonance frequencies of the filtering section coincide with respective standard frequency.

9. 发明申请

US20060093358A1 Optical packet communication system using labeling of wavelength-offset polarization-division multiplexing 失效
公开(公告)号：US20060093358A1
公开(公告)日：2006-05-04
申请号：US11264030
申请日：2005-11-02
申请人： Keun-joo Park , Hyun-chin Kim , June-koo Rhee , Young-kwang Seo , Chun-ju Youn
发明人： Keun-joo Park , Hyun-chin Kim , June-koo Rhee , Young-kwang Seo , Chun-ju Youn
IPC分类号： H04J14/06
CPC分类号： H04J14/06 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0035 , H04Q2011/0039
摘要： Disclosed is an optical packet communication system using a wavelength-offset polarization-division multiplexing labeling. An optical signal transmitter which is provided at an ingress node positioned at a sending end in an optical packet switching network, generates and combines packet data and a label, and transmits the combined packet data and label to a core node, wherein the packet data and label have polarization directions perpendicular to each other and maintain a predetermined wavelength interval. A label swapping device detects the label from the combined packet data and label received from the optical signal transmitter, detects next moving position information of the packet data, for generating a new label, substitutes the detected label by the new label, combines the new label with the packet data, and transmits the combined packet data and new label to a next moving position.

10. 发明授权

US08068484B2 Method for void-filling and transmitting burst data over optical burst switching network 失效
标题翻译：通过光突发交换网络进行空隙填充和发送突发数据的方法
公开(公告)号：US08068484B2
公开(公告)日：2011-11-29
申请号：US11315005
申请日：2005-12-23
申请人： Chun-ju Youn , Young-kwang Seo , Hyun-chin Kim , Keun-joo Park , June-koo Rhee
发明人： Chun-ju Youn , Young-kwang Seo , Hyun-chin Kim , Keun-joo Park , June-koo Rhee
IPC分类号： H04L12/28
CPC分类号： H04L47/10 , H04L47/32
摘要： A method for enhancing transmission efficiency of burst data by estimating a void between burst data and filling the void with new burst data in an optical burst switching (OBS) network. To this end, a node in the OBS network receives burst data (BD) aggregated from data packets, and a burst control packet (BCP) that is received prior to the BD by an offset time. The BCP contains information relating to the offset time and the BD. To predict the void between the BDs, a void filling time is defined within the offset time using the BCP. The present invention provides the method for determining whether to fill the void and filling the void by directly monitoring the BD over a preset time.
摘要翻译：一种用于通过估计突发数据之间的空隙并在光突发交换（OBS）网络中用新的突发数据填充空隙的方法来提高突发数据的传输效率。为此，OBS网络中的节点接收从数据分组聚合的突发数据（BD）和在BD之前接收偏移时间的突发控制分组（BCP）。 BCP包含有关偏移时间和BD的信息。为了预测BD之间的空隙，使用BCP在偏移时间内定义空隙填充时间。本发明提供了通过在预设时间内直接监视BD来确定是否填充空隙并填充空隙的方法。

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