公开(公告)号：US07298978B2

公开(公告)日：2007-11-20

申请号：US10384462

申请日：2003-03-06

申请人： Jyung-chan Lee ,  Seung-il Myong ,  Jin-soo Han ,  Je-soo Ko

发明人： Jyung-chan Lee ,  Seung-il Myong ,  Jin-soo Han ,  Je-soo Ko

IPC分类号： H04B10/06

CPC分类号： H04B10/695

摘要： An optical receiver in an optical communication system, and more particularly, to a method and an apparatus for optimizing a decision level of a signal output from an optical receiver to obtain a minimum bit error rate (BER) by measuring output characteristics of the optical receiver and adjusting a reference voltage of the optical receiver based on a measurement result. The provided method includes measuring the strength of an electric signal at a modulated frequency out of the frequency elements of the output electric signal in the optical receiver, generating a reference voltage based on the strength data of the electric signal, inputting the reference voltage to the optical receiver and re-measuring the strength of the electric signal output from the optical receiver to determine whether the strength of the signal is minimum, and maintaining the reference voltage when the strength of the signal is minimum and adjusting the reference voltage in other cases. Thus, the provided method optimizes the distribution of level one and level zero, i.e., a decision level, of the electric signal output from the optical receiver, so the efficiency and the performance of the transferred optical signal are maximized.

摘要翻译： 更具体地，涉及一种用于优化从光接收器输出的信号的判定电平以通过测量光接收器的输出特性来获得最小误码率（BER）来获得最小误码率（BER）的方法和装置， 以及基于测量结果调整所述光接收器的参考电压。 所提供的方法包括测量在光接收机中的输出电信号的频率元素之外的调制频率处的电信号的强度，基于电信号的强度数据产生参考电压，将参考电压输入到 重新测量从光接收器输出的电信号的强度，以确定信号的强度是否最小，并且当信号的强度最小时保持参考电压，并在其他情况下调整参考电压。 因此，所提供的方法优化了从光接收器输出的电信号的一级和零级的分布，即决定级别，从而使传输的光信号的效率和性能最大化。

公开(公告)号：US20100142947A1

公开(公告)日：2010-06-10

申请号：US12632588

申请日：2009-12-07

申请人： Jong-yoon Shin ,  Jong-ho Kim ,  Je-soo Ko

发明人： Jong-yoon Shin ,  Jong-ho Kim ,  Je-soo Ko

IPC分类号： H04J3/04 ,  H04J14/00

CPC分类号： H04J3/1652

摘要： A pseudo-inverse multiplexing/de-multiplexing apparatus and method are disclosed. The pseudo-inverse multiplexing apparatus maps a client signal to an OPUk-Xpv signal. The OPUk-Xpv signal has a payload area that can be segmented into a plurality of tributary slots and an overhead area into which frame configuration information related to the tributary slots is inserted. The pseudo-inverse multiplexing apparatus decides the number of tributary slots to be used to map client signals, according to a bit rate or bit tolerance of the client signals, and maps the client signals using the determined number of tributary slots. Accordingly, it is possible to map or frame a variety of client signals.

摘要翻译： 公开了一种伪逆多路复用/解复用装置和方法。 伪逆多路复用装置将客户端信号映射到OPUk-Xpv信号。 OPUk-Xpv信号具有能够被分割成多个支路时隙的有效载荷区域和插入与支路时隙相关的帧配置信息的开销区域。 伪反向多路复用装置根据客户端信号的比特率或比特容差来决定用于映射客户端信号的支路时隙数量，并使用确定数量的支路时隙对客户端信号进行映射。 因此，可以映射或框架各种客户端信号。

公开(公告)号：US07162162B2

公开(公告)日：2007-01-09

申请号：US10444192

申请日：2003-05-23

申请人： Jae-myoung Lee ,  Je-soo Ko

发明人： Jae-myoung Lee ,  Je-soo Ko

IPC分类号： H04B10/00

CPC分类号： H04B10/299 ,  H04L7/0075 ,  H04L7/027

摘要： A method and apparatus for optical clock recovery using optical filters with fixed reflective wavelengths is provided. In the apparatus, a first filter receives an optical signal and extracts one out of two spectral lines corresponding to two side peaks that are second in magnitude to a peak and exist at both sides of a peak on the spectrum of the received optical signal. A second filter extracts a spectral line corresponding the largest peak on the spectrum of the received optical signal. An attenuator equalizes the power levels of the two spectral lines extracted by the first and second filters. A beating generation unit receives signals corresponding to the two equalized spectral lines and generates beating between the equalized spectral lines, thereby recovering a clock component.

摘要翻译： 提供了一种使用具有固定反射波长的滤光器进行光时钟恢复的方法和装置。 在该装置中，第一滤波器接收光信号，并将对应于幅度第二幅度的两个侧峰的两个谱线中的一个提取到峰值，并存在于接收的光信号的频谱上的峰的两侧。 第二滤波器提取对应于所接收的光信号的频谱上的最大峰值的谱线。 衰减器均衡由第一和第二滤波器提取的两个谱线的功率电平。 跳动生成单元接收与两个均衡的谱线对应的信号，并且在均衡的谱线之间产生跳动，从而恢复时钟分量。

公开(公告)号：US08208529B2

公开(公告)日：2012-06-26

申请号：US12615127

申请日：2009-11-09

申请人： Choong-reol Yang ,  Je-soo Ko

发明人： Choong-reol Yang ,  Je-soo Ko

IPC分类号： H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04L25/03057 ,  H04L25/0204 ,  H04L2025/03414 ,  H04L2025/0349

摘要： Provided are an equalization apparatus and method of compensating a distorted received signal. The equalization apparatus includes: a filter unit removing inter-symbol interference (ISI) from a multi-channel signal that is received; and a zero-offset controller identifying a zero offset of the multi-channel signal and determining operating coefficients of the filter unit by reflecting the identified zero offset. A response filter, which reduces loss and noise, can be used, and the structure of the response filter can be simplified. In addition, channel characteristics are estimated in real time at an initial stage of data transmission and reception. Thus, an equalizer optimized for channel interference characteristics can be provided.

摘要翻译： 提供了补偿失真的接收信号的均衡装置和方法。 所述均衡装置包括：滤波器单元，从接收到的多信道信号中去除符号间干扰（ISI）; 以及零偏移控制器，其识别所述多​​通道信号的零偏移并且通过反映所识别的零偏移来确定所述滤波器单元的操作系数。 可以使用减少损耗和噪声的响应滤波器，并且可以简化响应滤波器的结构。 此外，在数据发送和接收的初始阶段，实时地估计信道特性。 因此，可以提供针对信道干扰特性优化的均衡器。

公开(公告)号：US20100150163A1

公开(公告)日：2010-06-17

申请号：US12621473

申请日：2009-11-18

申请人： Kye-hyun Ahn ,  Je-soo Ko

发明人： Kye-hyun Ahn ,  Je-soo Ko

IPC分类号： H04L12/56

CPC分类号： H04L47/10 ,  H04L12/12 ,  H04L47/13 ,  H04L47/266 ,  H04L47/29 ,  H04L49/351 ,  H04L49/40 ,  Y02D50/10 ,  Y02D50/40 ,  Y02D50/42

摘要： A method for reducing power consumption in an Ethernet switch is provided. The method includes: checking a state of packet data input through each of connection ports; detecting a connection port which has a packet rate lower than a predetermined reference value based on a result of the checking; and generating a data transfer control frame with respect to the connection port having the low packet rate and transmitting the generated data transfer control frame to an Ethernet apparatus connected to the corresponding connection port. Accordingly, a transmission line between the Ethernet switch and an Ethernet apparatus having the low to transmission rate is maintained in a low-power state, thereby reducing energy consumption in both Ethernet apparatuses.

摘要翻译： 提供了一种降低以太网交换机功耗的方法。 该方法包括：检查通过每个连接端口输入的分组数据的状态; 基于检查结果检测出具有低于预定参考值的分组速率的连接端口; 并且生成相对于具有低分组速率的连接端口的数据传输控制帧，并将生成的数据传送控制帧发送到连接到对应连接端口的以太网设备。 因此，具有低传输速率的以太网交换机和以太网设备之间的传输线路保持在低功率状态，从而降低了两个以太网设备的能量消耗。

公开(公告)号：US08228796B2

公开(公告)日：2012-07-24

申请号：US12621473

申请日：2009-11-18

申请人： Kye-hyun Ahn ,  Je-soo Ko

发明人： Kye-hyun Ahn ,  Je-soo Ko

IPC分类号： H04L12/26

CPC分类号： H04L47/10 ,  H04L12/12 ,  H04L47/13 ,  H04L47/266 ,  H04L47/29 ,  H04L49/351 ,  H04L49/40 ,  Y02D50/10 ,  Y02D50/40 ,  Y02D50/42

摘要： A method for reducing power consumption in an Ethernet switch is provided. The method includes: checking a state of packet data input through each of connection ports; detecting a connection port which has a packet rate lower than a predetermined reference value based on a result of the checking; and generating a data transfer control frame with respect to the connection port having the low packet rate and transmitting the generated data transfer control frame to an Ethernet apparatus connected to the corresponding connection port. Accordingly, a transmission line between the Ethernet switch and an Ethernet apparatus having the low to transmission rate is maintained in a low-power state, thereby reducing energy consumption in both Ethernet apparatuses.

摘要翻译： 提供了一种降低以太网交换机功耗的方法。 该方法包括：检查通过每个连接端口输入的分组数据的状态; 基于检查结果检测出具有低于预定参考值的分组速率的连接端口; 并且生成相对于具有低分组速率的连接端口的数据传输控制帧，并将生成的数据传送控制帧发送到连接到对应连接端口的以太网设备。 因此，具有低传输速率的以太网交换机和以太网设备之间的传输线路保持在低功率状态，从而降低了两个以太网设备的能量消耗。

公开(公告)号：US20100158518A1

公开(公告)日：2010-06-24

申请号：US12634651

申请日：2009-12-09

申请人： Jong-yoon Shin ,  Jong-ho Kim ,  Je-soo Ko

发明人： Jong-yoon Shin ,  Jong-ho Kim ,  Je-soo Ko

IPC分类号： H04J14/00

CPC分类号： H04J14/02 ,  H04J3/0605 ,  H04J3/1652 ,  H04J14/0279 ,  H04J2203/0094 ,  H04L25/14

摘要： An optical communication system is provided. In particular, multi-lane signal transmitting and receiving apparatuses capable of transmitting and receiving a multi-lane signal using the same inverse multiplexing scheme even when optic modules having several transport lane numbers are selected according to a purpose of use are provided. Each OTUk capable of containing a client signal in a transport hierarchy signal (OTUk-Xv) is defined as a virtual container, and Y virtual lanes are allocated to respective virtual containers X, in which identification information for the allocated virtual lanes is inserted into an overhead area and a transport hierarchy multi-lane signal is transmitted in the form of OTUk-XvYd. A receiving stage extracts the identification information inserted into the overhead area of the transport hierarchy signal in the form of OTUk-XvYd, compensates for a skew of the received signals, and aligns virtual lane signals for each virtual container to restore an OTUk-Xv signal that is an original transport hierarchy signal.

摘要翻译： 提供光通信系统。 特别地，提供了即使当根据使用目的选择具有多个传输通道号的光学模块时，也能够使用相同的反向多路复用方案来发送和接收多车道信号的多车道信号发送和接收装置。 将能够将传输层级信号（OTUk-Xv）中的客户端信号包含的每个OTUk定义为虚拟容器，将Y个虚拟通道分配给相应的虚拟容器X，在该虚拟容器X中，将分配的虚拟通道的识别信息插入到 开销区域和传输层级多车道信号以OTUk-XvYd的形式发送。 接收级提取以OTUk-XvYd的形式插入到传输层级信号的开销区域中的识别信息，补偿接收到的信号的偏斜，并对准每个虚拟容器的虚拟通道信号，以恢复OTUk-Xv信号 这是原始的传输层次信号。

公开(公告)号：US20100158096A1

公开(公告)日：2010-06-24

申请号：US12615127

申请日：2009-11-09

申请人： Choong-reol Yang ,  Je-soo Ko

发明人： Choong-reol Yang ,  Je-soo Ko

IPC分类号： H04L27/01 ,  H04L7/00

CPC分类号： H04L25/03057 ,  H04L25/0204 ,  H04L2025/03414 ,  H04L2025/0349

摘要： Provided are an equalization apparatus and method of compensating a distorted received signal. The equalization apparatus includes: a filter unit removing inter-symbol interference (ISI) from a multi-channel signal that is received; and a zero-offset controller identifying a zero offset of the multi-channel signal and determining operating coefficients of the filter unit by reflecting the identified zero offset. A response filter, which reduces loss and noise, can be used, and the structure of the response filter can be simplified. In addition, channel characteristics are estimated in real time at an initial stage of data transmission and reception. Thus, an equalizer optimized for channel interference characteristics can be provided.

摘要翻译： 提供了补偿失真的接收信号的均衡装置和方法。 所述均衡装置包括：滤波器单元，从接收到的多信道信号中去除符号间干扰（ISI）; 以及零偏移控制器，其识别所述多​​通道信号的零偏移并且通过反映所识别的零偏移来确定所述滤波器单元的操作系数。 可以使用减少损耗和噪声的响应滤波器，并且可以简化响应滤波器的结构。 此外，在数据发送和接收的初始阶段，实时地估计信道特性。 因此，可以提供针对信道干扰特性优化的均衡器。

公开(公告)号：US08635371B2

公开(公告)日：2014-01-21

申请号：US12635902

申请日：2009-12-11

申请人： Seung-hwan Kim ,  Je-soo Ko ,  June-koo Rhee ,  Kyu-sang Lee ,  Chan-kyun Lee ,  Ji-hoon Sung

发明人： Seung-hwan Kim ,  Je-soo Ko ,  June-koo Rhee ,  Kyu-sang Lee ,  Chan-kyun Lee ,  Ji-hoon Sung

IPC分类号： G06F15/16

CPC分类号： H04J3/0667

摘要： A method and apparatus for processing a timestamp using signature information on a physical layer is provided. The timestamp processing terminal uses a pseudo-random binary sequence to assign signature information to a message which is to be sent to another terminal, and verifies the signature information on a physical layer. The signature information is used to identify the message as a sync message. Accordingly, it is possible to precisely process the timestamp.

摘要翻译： 提供了一种使用物理层上的签名信息处理时间戳的方法和装置。 时间戳处理终端使用伪随机二进制序列将签名信息分配给要发送到另一终端的消息，并且验证物理层上的签名信息。 签名信息用于将消息标识为同步消息。 因此，可以精确地处理时间戳。

公开(公告)号：US08204087B2

公开(公告)日：2012-06-19

申请号：US12634651

申请日：2009-12-09

申请人： Jong-yoon Shin ,  Jong-ho Kim ,  Je-soo Ko

发明人： Jong-yoon Shin ,  Jong-ho Kim ,  Je-soo Ko

IPC分类号： H04J3/22

CPC分类号： H04J14/02 ,  H04J3/0605 ,  H04J3/1652 ,  H04J14/0279 ,  H04J2203/0094 ,  H04L25/14

摘要： An optical communication system is provided. In particular, multi-lane signal transmitting and receiving apparatuses capable of transmitting and receiving a multi-lane signal using the same inverse multiplexing scheme even when optic modules having several transport lane numbers are selected according to a purpose of use are provided. Each OTUk capable of containing a client signal in a transport hierarchy signal (OTUk-Xv) is defined as a virtual container, and Y virtual lanes are allocated to respective virtual containers X, in which identification information for the allocated virtual lanes is inserted into an overhead area and a transport hierarchy multi-lane signal is transmitted in the form of OTUk-XvYd. A receiving stage extracts the identification information inserted into the overhead area of the transport hierarchy signal in the form of OTUk-XvYd, compensates for a skew of the received signals, and aligns virtual lane signals for each virtual container to restore an OTUk-Xv signal that is an original transport hierarchy signal.

摘要翻译： 提供光通信系统。 特别地，提供了即使当根据使用目的选择具有多个传输通道号的光学模块时，也能够使用相同的反向多路复用方案来发送和接收多车道信号的多车道信号发送和接收装置。 将能够将传输层级信号（OTUk-Xv）中的客户端信号包含的每个OTUk定义为虚拟容器，将Y个虚拟通道分配给相应的虚拟容器X，在该虚拟容器X中，将分配的虚拟通道的识别信息插入到 开销区域和传输层级多车道信号以OTUk-XvYd的形式发送。 接收级提取以OTUk-XvYd的形式插入到传输层级信号的开销区域中的识别信息，补偿接收到的信号的偏斜，并对准每个虚拟容器的虚拟通道信号，以恢复OTUk-Xv信号 这是原始的传输层次信号。