公开(公告)号：US07489868B2

公开(公告)日：2009-02-10

申请号：US11110134

申请日：2005-04-19

申请人： Seung Hyun Jang ,  Chul Soo Lee ,  Eui Suk Jung ,  Byoung Whi Kim

发明人： Seung Hyun Jang ,  Chul Soo Lee ,  Eui Suk Jung ,  Byoung Whi Kim

IPC分类号： H04J14/00

CPC分类号： H04B10/07953 ,  H04B10/077 ,  H04B10/07955 ,  H04J14/0298

摘要： An apparatus for measuring Optical Beat Interference (OBI) noise is applied to a central office in a Subcarrier Multiple Access (SCMA) optical network. The central office includes an optical receiver for converting an optical signal received through an optical fiber into an electrical signal. The OBI noise measurement apparatus includes a power divider, first and second filters, and a power measurement unit. The power divider divides the power of a signal output from the optical receiver into two signals. The first filter passes one of the two signals divided by the power divider in a low band of frequencies below a band of subcarrier signals. The second filter passes the other of the two signals divided by the power divider in a high band of frequencies above the band of subcarrier signals. The power measurement unit measures the power of each signal passed through the first and second filters.

摘要翻译： 用于测量光学节拍干扰（OBI）噪声的装置被应用于子载波多址（SCMA）光网络中的中心局。 中心局包括用于将通过光纤接收的光信号转换成电信号的光接收器。 OBI噪声测量装置包括功率分配器，第一和第二滤波器以及功率测量单元。 功率分配器将从光接收器输出的信号的功率分成两个信号。 第一滤波器通过功率分配器划分的两个信号中的一个在低于频带子载波信号的低频带中传递。 第二滤波器通过功率分配器划分的两个信号中的另一个以高于子载波信号频带的高频带通过。 功率测量单元测量通过第一和第二滤波器的每个信号的功率。

公开(公告)号：US07421206B2

公开(公告)日：2008-09-02

申请号：US11126591

申请日：2005-05-10

申请人： Chul Soo Lee ,  Byoung Whi Kim ,  Eui Suk Jung ,  Seung Hyun Jang

发明人： Chul Soo Lee ,  Byoung Whi Kim ,  Eui Suk Jung ,  Seung Hyun Jang

IPC分类号： H04J14/02 ,  H04B10/24

CPC分类号： H04J14/0298 ,  H04B10/40 ,  H04J14/0226 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282

摘要： An optical transceiver for transmitting light source control information, which is applied to a Subcarrier Multiplexing optical network, is disclosed. The optical transceiver includes a controller, an SCM frame generation/restoring unit, a modulator/demodulator, and an EO/OE converter. The controller controls transmission of light source control information or collects received light source control information. The SCM frame generation/restoring unit generates an SCM frame containing light source control information received from the controller. The modulator/demodulator modulates an SCM frame generated by the SCM frame generation/restoring unit into a signal suitable for transmission. The EO/OE converter converts a transmission signal modulated by the modulator/demodulator into an optical signal and transmits the optical signal through an optical fiber. An optical network having a telephone office OLT and subscriber ONTs, each having the optical transceiver, is also disclosed.

摘要翻译： 公开了一种用于发送应用于子载波复用光网络的光源控制信息的光收发器。 光收发器包括控制器，SCM帧生成/恢复单元，调制器/解调器和EO / OE转换器。 控制器控制光源控制信息的传输或收集所接收的光源控制信息。 SCM帧生成/恢复单元生成包含从控制器接收的光源控制信息的SCM帧。 调制器/解调器将由SCM帧生成/恢复单元生成的SCM帧调制成适合于传输的信号。 EO / OE转换器将由调制器/解调器调制的传输信号转换为光信号，并通过光纤传输光信号。 还公开了具有电话局OLT和用户ONT的光网络，每个具有光收发器。

公开(公告)号：US07453380B2

公开(公告)日：2008-11-18

申请号：US11588139

申请日：2006-10-26

申请人： Eui Suk Jung ,  Chul Soo Lee ,  Seung Hyun Jang ,  Byoung Whi Kim

发明人： Eui Suk Jung ,  Chul Soo Lee ,  Seung Hyun Jang ,  Byoung Whi Kim

IPC分类号： H03M1/00

CPC分类号： G06F3/05 ,  G06F13/385 ,  G06F13/4291

摘要： Provided are an apparatus and method for processing analog monitoring signals by using a serial bus. The apparatus includes a multiplexer receiving at least one analog signal and outputting only one of the at least one analog signal in response to a predetermined control signal; an analog-to-digital converter converting the output analog signal into a digital signal; a first controller generating the control signal, outputting the control signal to the multiplexer, and controlling the operation of the analog-to-digital converter; and a bus controller outputting the digital signal via an external serial bus. Accordingly, analog monitoring signals are received, converted into digital data, and output via serial bus even when a large number of analog monitoring signals are present, only if the address input to the apparatus is identical to unique address of the apparatus.

摘要翻译： 提供了一种通过使用串行总线来处理模拟监视信号的装置和方法。 该装置包括多路复用器，其接收至少一个模拟信号，并且响应于预定的控制信号仅输出至少一个模拟信号中的一个; 将所述输出模拟信号转换成数字信号的模数转换器; 产生控制信号的第一控制器，将控制信号输出到多路复用器，并控制模数转换器的操作; 以及总线控制器，经由外部串行总线输出数字信号。 因此，只有当输入到设备的地址与设备的唯一地址相同时，即使当存在大量模拟监视信号时，模拟监视信号也被接收，转换成数字数据，并通过串行总线输出。

公开(公告)号：US07720381B2

公开(公告)日：2010-05-18

申请号：US11634639

申请日：2006-12-06

申请人： Byoung Whi Kim ,  Seung Hyun Jang ,  Chul Soo Lee ,  Eul Suk Jung

发明人： Byoung Whi Kim ,  Seung Hyun Jang ,  Chul Soo Lee ,  Eul Suk Jung

IPC分类号： H04J14/00

CPC分类号： H04J14/0298

摘要： Provided are an optical transmission apparatus and an optical access network for a wavelength-division multiplexing optical network with sub-carrier multiplex and sub-carrier multiple access schemes. The optical transmission apparatus includes: a multiplexer and/or demultiplexer demultiplexing M forward A band optical signals having wavelengths each comprising a plurality of sub-carriers and multiplexing M backward B band optical signals having wavelengths each comprising a plurality of sub-carriers; a plurality of optical power splitters splitting each of the M forward A band optical signals into N optical signals; a plurality of optical receivers receiving backward optical signals belonging to a C band; and M optical transmitters converting the backward optical signals in the C band into the M backward B band optical signals.

摘要翻译： 提供一种用于具有子载波复用和子载波多路访问方案的波分复用光网络的光传输装置和光接入网络。 光传输装置包括：多路复用器和/或解复用器M解复用A个波段光信号，其波长各自包括多个子载波，并复用M个后向B波段光信号，其波长各自包括多个子载波; 多个光功率分配器，将M个前向A带光信号中的每一个分解为N个光信号; 多个光接收器，其接收属于C波段的反向光信号; M个光发射机将C波段的反向光信号转换为M个后向B波段的光信号。

公开(公告)号：US20120172539A1

公开(公告)日：2012-07-05

申请号：US13339808

申请日：2011-12-29

申请人： So Young Kwon ,  Young Sub Jin ,  Sang Kyun Lim ,  Bok Nam Jang ,  Seung Hyun Jang ,  Ki Yon Lee ,  Suk Min Jun

发明人： So Young Kwon ,  Young Sub Jin ,  Sang Kyun Lim ,  Bok Nam Jang ,  Seung Hyun Jang ,  Ki Yon Lee ,  Suk Min Jun

IPC分类号： C08G69/48 ,  C08G69/26

CPC分类号： C08G69/26 ,  C08G63/6856 ,  C08G63/916 ,  C08G69/44 ,  C08L77/06 ,  C08L77/12

摘要： A polyamide resin produced by polymerization of an aliphatic diamine monomer mixture (A) and polyester resin (B) is disclosed. The aliphatic diamine monomer mixture (A) includes an aliphatic diamine monomer (a1) having 2 to 6 carbon atoms, and an aliphatic diamine monomer (a2) having 6 to 12 carbon atoms, with the proviso that (a1) and (a2) are different and have a different number of carbon atoms. A method to produce the polyamide resin is also disclosed. The polyamide resin can have excellent heat resistance, low hygroscopic property and good color.

摘要翻译： 公开了通过脂族二胺单体混合物（A）和聚酯树脂（B）的聚合制备的聚酰胺树脂。 脂肪族二胺单体混合物（A）包括碳原子数2〜6的脂肪族二胺单体（a1）和碳原子数6〜12的脂肪族二胺单体（a2），条件是（a1）和（a2） 不同且具有不同数量的碳原子。 还公开了制备聚酰胺树脂的方法。 聚酰胺树脂可以具有优异的耐热性，低吸湿性和良好的颜色。

公开(公告)号：US07912372B2

公开(公告)日：2011-03-22

申请号：US11166362

申请日：2005-06-24

申请人： Chang Hee Lee ,  Jin Serk Baik ,  Keun Youl Park ,  Seung Hyun Jang ,  Ki Man Choi ,  Hyun Sik Min

发明人： Chang Hee Lee ,  Jin Serk Baik ,  Keun Youl Park ,  Seung Hyun Jang ,  Ki Man Choi ,  Hyun Sik Min

IPC分类号： H04J14/00

CPC分类号： H04J14/0226 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04L12/2801

摘要： The present invention relates to a passive optical network, which inexpensively improves the spectral efficiency of an access network and is capable of increasing the number of subscribers per channel by using WDM in combination with Time Division Multiplexing (TDM) or SubCarrier Multiple Access (SCMA) to expand a conventional WDM passive optical network. The passive optical network includes light providing means provided in a central office to provide broadband incoherent light; a multiplexer connected to the central office via an optical fiber to divide the light transmitted from the light providing means according to wavelengths and to multiplex upstream signals; a plurality of splitters to branch divided lights and to combine the upstream optical signals; and a plurality of subscribers connected to the splitters, the subscribers including wavelength-locked Fabry-Perot laser diodes capable of performing direct and analog modulation, and means for directly modulating lights of the Fabry-Perot laser diodes and transmitting modulated lights to the subscribers using time division multiplexing.

摘要翻译： 无源光网络技术本发明涉及无线光网络，其能够廉价地提高接入网络的频谱效率，并且能够通过结合时分多路复用（TDM）或子载波多路访问（SCMA）使用WDM来增加每个信道的用户数量， 扩展传统的WDM无源光网络。 无源光网络包括提供在中心局的光提供装置，以提供宽带非相干光; 多路复用器，经由光纤连接到中心局，以根据波长划分从光提供装置发射的光，并对上行信号进行复用; 多个分离器，分支分光，并组合上游光信号; 以及连接到分离器的多个用户，用户包括能够执行直接和模拟调制的波长锁定法布里 - 珀罗激光二极管，以及用于直接调制法布里 - 珀罗激光二极管的光并将调制光发射到订户的装置 时分复用。