会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 31. 发明授权
    • Multi-degree cross-connector system, operating method and optical communication network using the same
    • 多度交叉连接器系统,操作方法和光通信网使用相同
    • US08155521B2
    • 2012-04-10
    • US12514977
    • 2006-12-06
    • Hwan-Seok ChungKwangloon KimSang-Soo LeeSun-Hyok Chang
    • Hwan-Seok ChungKwangloon KimSang-Soo LeeSun-Hyok Chang
    • H04J14/00
    • H04Q11/0005H04J14/0204H04J14/0212H04J14/0213H04J14/0217H04J14/0219H04Q2011/0015H04Q2011/0016H04Q2011/0039H04Q2011/0052
    • Provided are a network node which has a wavelength switching cross-connection function and can thus interconnect paths of a wavelength-division-multiplexed optical signal and convert wavelengths, and an operating method of the network node. Accordingly, it is possible to provide a multi-degree cross-connection system having a simple structure at lower cost by allowing transmission of optical signals supposed not to be added/dropped at a network node without converting them into electrical signals and performing O/E conversion or E/O conversion only on optical signals supposed to be added/dropped at a network node. In addition, it is possible to increase the expandability of networks by regenerating degraded signals and which can effectively utilize bandwidths by grooming low-speed electrical digital hierarchy signals and transmitting them as high-speed optical signals. Moreover, it is possible to increase the availability of network resources by performing wavelength conversion without the need of additional wavelength converters. Furthermore, it is possible to prevent multiplexed optical signals from being degraded by filtering even when the multiplexed optical signals are not demultiplexed into wavelengths. Still furthermore, it is possible to perform a multicast operation on input wavelengths.
    • 提供了具有波长切换交叉连接功能并且因此可以互连波分复用光信号的路径并转换波长的网络节点以及网络节点的操作方法。 因此,可以通过允许在网络节点处不被添加/丢弃的光信号的传输而不将它们转换成电信号并执行O / E来提供具有简单结构的多级交叉连接系统,其具有较低的成本 转换或E / O转换仅在光网络节点上被添加/删除的信号上。 此外,可以通过再生劣化信号来增加网络的可扩展性,并且可以通过梳理低速电子数字分层信号并将其作为高速光信号传输来有效地利用带宽。 此外,可以通过执行波长转换来增加网络资源的可用性,而不需要额外的波长转换器。 此外,即使当复用的光信号未被解复用为波长时,也可以防止多路复用的光信号被滤波劣化。 此外,可以对输入波长执行多播操作。
    • 32. 发明申请
    • MULTI-DEGREE CROSS-CONNECTOR SYSTEM, OPERATING METHOD AND OPTICAL COMMUNICATION NETWORK USING THE SAME
    • 多级交叉连接器系统,使用该方法的操作方法和光通信网络
    • US20100027996A1
    • 2010-02-04
    • US12514977
    • 2006-12-06
    • Hwan-Seok ChungKwangloon KimSang-Soo LeeSun-Hyok Chang
    • Hwan-Seok ChungKwangloon KimSang-Soo LeeSun-Hyok Chang
    • H04J14/00
    • H04Q11/0005H04J14/0204H04J14/0212H04J14/0213H04J14/0217H04J14/0219H04Q2011/0015H04Q2011/0016H04Q2011/0039H04Q2011/0052
    • Provided are a network node which has a wavelength switching cross-connection function and can thus interconnect paths of a wavelength-division-multiplexed optical signal and convert wavelengths, and an operating method of the network node. Accordingly, it is possible to provide a multi-degree cross-connection system having a simple structure at lower cost by allowing transmission of optical signals supposed not to be added/dropped at a network node without converting them into electrical signals and performing O/E conversion or E/O conversion only on optical signals supposed to be added/dropped at a network node. In addition, it is possible to increase the expandability of networks by regenerating degraded signals and which can effectively utilize bandwidths by grooming low-speed electrical digital hierarchy signals and transmitting them as high-speed optical signals. Moreover, it is possible to increase the availability of network resources by performing wavelength conversion without the need of additional wavelength converters. Furthermore, it is possible to prevent multiplexed optical signals from being degraded by filtering even when the multiplexed optical signals are not demultiplexed into wavelengths. Still furthermore, it is possible to perform a multicast operation on input wavelengths.
    • 提供了具有波长切换交叉连接功能并且因此可以互连波分复用光信号的路径并转换波长的网络节点以及网络节点的操作方法。 因此,可以通过允许在网络节点处不被添加/丢弃的光信号的传输而不将它们转换成电信号并执行O / E来提供具有简单结构的多级交叉连接系统,其具有较低的成本 转换或E / O转换仅在光网络节点上被添加/删除的信号上。 此外,可以通过再生劣化信号来增加网络的可扩展性,并且可以通过梳理低速电子数字分层信号并将其作为高速光信号传输来有效地利用带宽。 此外,可以通过执行波长转换来增加网络资源的可用性,而不需要额外的波长转换器。 此外,即使当复用的光信号未被解复用为波长时,也可以防止多路复用的光信号被滤波劣化。 此外,可以对输入波长执行多播操作。
    • 34. 发明授权
    • Architecture to reduce errors due to metastability in analog to digital converters
    • 减少由于模数转换器的亚稳态引起的误差的架构
    • US06222476B1
    • 2001-04-24
    • US09386029
    • 1999-08-30
    • Sang-Soo LeeTzu-Wang Pan
    • Sang-Soo LeeTzu-Wang Pan
    • H03M136
    • H03M1/0863H03M1/365
    • A system and method for reduced metastability errors in an analog-to-digital converter (“ADC”) are disclosed. The ADC comprises comparators configured to output a thermometer code and a thermometer-to-binary encoder for converting the thermometer code to a digital output. The thermometer-to-binary encoder includes a transition detection logic to generate a transition codeword having at least one transition bit corresponding to a transition point in the thermometer code, an intermediate encoding logic to encode the transition codeword into first intermediate signals, a converter logic to convert the first intermediate signals into converted intermediate signals such that same converted intermediate signals result from first intermediate signals corresponding to a transition codeword having more than one transition bit and first intermediate signals corresponding to another transition codeword having one of the more than one transition bit, and a converted signals mapper for mapping the converted signals to the digital output. The transition detection logic may include inverters and AND gates where a threshold voltage of each inverter is preferably greater than a threshold voltage of each corresponding AND gate to which the output of each inverter is input.
    • 公开了一种用于降低模拟 - 数字转换器(“ADC”)中的亚稳态误差的系统和方法。 ADC包括比较器,其配置为输出温度计代码和用于将温度计代码转换为数字输出的温度计与二进制编码器。 温度计对二进制编码器包括转换检测逻辑,以产生具有对应于温度计代码中的转变点的至少一个转换位的转换码字,将转换码字编码为第一中间信号的中间编码逻辑,转换器逻辑 将第一中间信号转换成转换的中间信号,使得相同的转换的中间信号由对应于具有多于一个转换位的转换码字的第一中间信号和对应于具有多于一个转换位之一的另一个转换码字的第一中间信号产生 ,以及用于将转换的信号映射到数字输出的转换信号映射器。 转换检测逻辑可以包括反相器和与门,其中每个反相器的阈值电压优选地大于每个反相器的输出输入到的每个对应的与门的阈值电压。
    • 35. 发明授权
    • Laser linewidth measuring apparatus utilizing stimulated brillouin
scattering
    • 利用受激布里渊散射的激光线宽测量装置
    • US5764359A
    • 1998-06-09
    • US821830
    • 1997-03-21
    • Gap-Youl LyuSang-Soo LeeDong-Ho LeeChang-Soo Park
    • Gap-Youl LyuSang-Soo LeeDong-Ho LeeChang-Soo Park
    • G01J9/04G01J9/00G02F1/35H01S3/00H01S3/10G01B9/02
    • G01J9/00
    • An apparatus for measuring the linewidth of a laser is disclosed in which the linewidth of a laser is measured in a wide range from a narrow linewidth to a wide linewidth by utilizing frequency-shifted rays based on a stimulated Brillouin scattering within an optical fiber in an easy and efficient manner. The apparatus according to the present invention includes: an optical signal generating and splitting means for generating optical signals under test, and for splitting them into two sets of signals; a frequency shifting means for amplifying the optical frequency of the optical source of the optical signal generating and splitting means, and then, irradiating the amplified signals into an optical fiber so as to shift the frequency based on a stimulated Brillouin phenomenon; a leading means for minimizing a loss of the frequency shifted rays outputted in a direction opposite to that of original laser beams of the frequency shifting means so as to leading them in a certain direction; and a spectrum analyzing means for receiving the original rays from the optical signal generating and splitting means and for receiving the frequency-shifted rays from the leading means so as to stimulate beatings and to analyze the beaten spectra. The apparatus is applied to measuring the linewidth and channel interval of a laser used in wavelength division multiplexing optical communications.
    • 公开了一种用于测量激光器的线宽的装置,其中通过利用基于光纤内的受激布里渊散射的频移射线,在从窄线宽到宽线宽的宽范围内测量激光的线宽。 方便高效的方式。 根据本发明的装置包括:光信号产生和分离装置,用于产生被测光信号,并将它们分成两组信号; 用于放大光信号产生和分离装置的光源的光频率的频移装置,然后将放大的信号照射到光纤中,以便基于受激布里渊现象来移动频率; 用于最小化在与频移装置的原始激光束相反的方向上输出的频移的光线的损失以便沿某一方向引导的引导装置; 以及频谱分析装置,用于从光信号产生和分离装置接收原始光线,并用于接收来自前置装置的频移光线,以便刺激拍打并分析拍频。 该装置用于测量波分复用光通信中使用的激光器的线宽和通道间隔。
    • 40. 发明申请
    • CUTTING INSERT
    • 切割插件
    • US20070160433A1
    • 2007-07-12
    • US11617571
    • 2006-12-28
    • Sang-Soo LeeHyung-Keun JooWook-Jung Sung
    • Sang-Soo LeeHyung-Keun JooWook-Jung Sung
    • B23P15/28
    • B23B27/141B23B2200/087B23B2200/201B23B2200/208Y10T407/23Y10T407/24
    • A cutting insert is disclosed, where the shape of a cutting edge is improved so that the minimum cutting load is applied during a cutting process to obtain the same surface roughness although the cutting insert is fed at high speed and to thus obtain high efficiency and high productivity. The diamond-shaped cutting insert includes an upper part and a lower part, a top surface and a bottom surface that are lower than the upper part and higher than the lower part, respectively, side parts for connecting the top surface to the bottom surface, corner parts for smoothly connecting the side parts to each other, a cutting edge formed by crossing the top surface, the bottom surface, the side parts, and the corner parts, and a chip breaker formed from the cutting edge to between the top surface and the bottom surface.
    • 公开了一种切削刀片,其中改进了切削刃的形状,使得在切削过程中施加最小切削负载以获得相同的表面粗糙度,尽管切削刀片被高速进给并因此获得高效率和高 生产率。 菱形切削刀片分别包括上部和下部,顶部表面和底部表面,其分别比上部低并且高于下部,侧面部分用于将顶表面连接到底部表面, 用于将侧部部件彼此平滑地连接的角部件,通过使上表面,底面,侧部和拐角部分交叉形成的切削刃,以及由切削刃形成的切屑,在顶面与 底面。