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1. 发明授权

US07280754B2 Two-fiber optical ring network 失效
标题翻译：双光纤光环网
公开(公告)号：US07280754B2
公开(公告)日：2007-10-09
申请号：US10632480
申请日：2003-08-01
申请人： Sang-Hyun Doh , Ki-Cheol Lee , Yun-Je Oh
发明人： Sang-Hyun Doh , Ki-Cheol Lee , Yun-Je Oh
IPC分类号： H04J14/02
CPC分类号： H04J14/0297 , H04J14/0227 , H04J14/0246 , H04J14/0283 , H04J14/0287 , H04J14/0291 , H04J14/0295
摘要： Disclosed is a two-fiber optical ring network having a plurality of nodes linked by first and second fiber optic links, wherein each node comprises a first splitting section for splitting optical signals from optical signals traveling through the first fiber into the protection channels; a first add/drop section for performing adding and/or dropping optical signals passing through the first splitting section to a plurality of channels; a first switching section for combining optical signals in the protection channels to the first fiber when there is no link failure between adjacent nodes and for combining optical signals in the protection channels to the second fiber when there is a link failure between adjacent nodes; and, a controlling section for identifying whether or not the optical link failure occurs in the fibers and for generating a control signal to activate a restoration process according to the identified outcome.
摘要翻译：公开了具有由第一和第二光纤链路链接的多个节点的双光纤光环网络，其中每个节点包括第一分离部分，用于将从第一光纤传播的光信号的光信号分离成保护信道; 用于执行将通过所述第一分离部分的光信号添加和/或丢弃到多个信道的第一加/减部分; 第一切换部分，当相邻节点之间没有链路故障时，将保护信道中的光信号与第一光纤组合，并且当相邻节点之间存在链路故障时，将保护信道中的光信号组合到第二光纤; 以及控制部分，用于识别在光纤中是否发生光链路故障，并且根据所识别的结果产生用于激活恢复过程的控制信号。

2. 发明授权

US07277490B1 Apparatus for converting PCM signal 失效
标题翻译： PCM信号转换装置
公开(公告)号：US07277490B1
公开(公告)日：2007-10-02
申请号：US09350436
申请日：1999-07-09
申请人： Chang-Rae Jeong
发明人： Chang-Rae Jeong
IPC分类号： H04B14/04
CPC分类号： H04B14/048 , H03M7/50
摘要： An apparatus for converting pulse code modulation (PCM) signals in a telecommunication system between two different modulation standards. In the apparatus, a channel selector generates a channel select signal for identifying at least one channel of the multiple channels containing input digital signals modulated by said one of said two different modulation standards. A first codec demodulates a signal on a channel designated by the channel select signal which is modulated by the first modulation standard, into an analog signal to be supplied to a second codec, which modulates the converted analog signal input into a digital signal using the second modulation standard. The reverse process is executed in a similar manner. A second codec using the second modulation standard demodulates a digital signal on the channel designated by the channel select signal into an analog signal to be supplied to the first codec, and the first codec in turn modulates the converted analog signal into a digital signal using the first modulation standard. As a result, the present invention is able to convert pulse code modulation signals from either one of two different modulation standards to the other one of said two different modulation standards in a telecommunication system.
摘要翻译：一种用于在两个不同调制标准之间转换电信系统中的脉码调制（PCM）信号的装置。在该装置中，信道选择器产生用于识别包含由所述两个不同调制标准中的一个调制的输入数字信号的多个信道中的至少一个信道的信道选择信号。第一编解码器将由由第一调制标准调制的信道选择信号指定的信道上的信号解调为要提供给第二编解码器的模拟信号，该第二编解码器使用第二编解码器将转换后的模拟信号输入数字信号调制标准。以相似的方式执行相反的处理。使用第二调制标准的第二编解码器将由信道选择信号指定的信道上的数字信号解调为要提供给第一编解码器的模拟信号，并且第一编解码器又将转换的模拟信号调制为数字信号，使用第一调制标准。结果，本发明能够将来自两个不同调制标准中的任一个的脉冲编码调制信号转换成电信系统中的所述两个不同调制标准中的另一个。

3. 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。

4. 发明授权

US07244899B2 Keypad assembly for portable terminal 有权
标题翻译：便携式终端的键盘组件
公开(公告)号：US07244899B2
公开(公告)日：2007-07-17
申请号：US11348782
申请日：2006-02-07
申请人： Sun-Tae Jung , Dong-Hoon Jang , Mun-Kue Park
发明人： Sun-Tae Jung , Dong-Hoon Jang , Mun-Kue Park
IPC分类号： H01H9/20
CPC分类号： H04M1/23 , G06F1/1626 , G06F1/1662 , G06F3/0202 , H01H13/83 , H01H2219/056 , H01H2219/06 , H01H2219/062 , H04M1/22
摘要： A keypad assembly for a portable terminal according to the present invention includes: a keypad having pad portions with a plurality of key buttons placed thereon, light guide plates disposed between the pad portions, and reflection units disposed on the light guide plates to direct the light toward the key buttons; light sources for providing the light toward the reflection units; a plurality of spacers disposed below the light guide plates for separating the light guide plate from a substrate and for supporting the light guide plates; switches disposed below the pad portions under the key buttons for applying signal to the substrate; and a casing for enclosing the keypad.
摘要翻译：根据本发明的用于便携式终端的键盘组件包括：键盘，其具有放置在其上的多个按键按钮的垫部分，设置在衬垫部分之间的导光板和设置在导光板上的引导光的反射单元朝向按键; 用于向反射单元提供光的光源; 设置在导光板下方的多个间隔件，用于将导光板从基板分离并支撑导光板; 设置在用于向基板施加信号的键按钮下方的垫部下方的开关; 以及用于封闭小键盘的壳体。

5. 发明授权

US07239767B2 Packaging apparatus for optical interconnection on optical printed circuit board 有权
标题翻译：光学印刷电路板上光学互连的包装设备
公开(公告)号：US07239767B2
公开(公告)日：2007-07-03
申请号：US10795612
申请日：2004-03-08
申请人： Dong-Su Kim , Hyo-Hoon Park , Han-Seo Cho , Byung-Sup Rho , Sun-Tae Jung
发明人： Dong-Su Kim , Hyo-Hoon Park , Han-Seo Cho , Byung-Sup Rho , Sun-Tae Jung
IPC分类号： G02B6/12
CPC分类号： G02B6/42 , G02B6/4214 , H05K1/0274
摘要： A packaging apparatus for optical interconnection on an optical PCB includes a first substrate with a via hole formed therethrough and in which an optical waveguide is formed, an optical interconnection block having a reflective plane on its lower end inserted into the via hole, a second substrate flip-bonded to an upper surface of the first substrate, and an optically active element flip-bonded to a lower surface of the second substrate and aligned for optical communication.
摘要翻译：一种用于光学PCB上的光学互连的封装装置，包括：第一基板，其具有形成在其中的通孔，并且其中形成有光波导;光学互连块，其下端插入通孔的反射平面;第二基板翻转接合到第一基板的上表面，以及光学活性元件，其被翻转接合到第二基板的下表面并对准以进行光通信。

6. 发明授权

US07224506B2 Single side band modulation device 失效
标题翻译：单边带调制装置
公开(公告)号：US07224506B2
公开(公告)日：2007-05-29
申请号：US11360076
申请日：2006-02-23
申请人： Sung-Kee Kim , Hoon Kim , Han-Lim Lee , Seong-Taek Hwang
发明人： Sung-Kee Kim , Hoon Kim , Han-Lim Lee , Seong-Taek Hwang
IPC分类号： G02F1/01
CPC分类号： G02F1/2255
摘要： A single side band modulation device includes a first Mach Zehnder interferometer and a second Mach Zehnder interferometer. The first Mach Zehnder interferometer includes at least two output arms, and the second Mach Zehnder interferometer includes at least two output arms. Terminals of the output arms are connected with one another.
摘要翻译：单边带调制装置包括第一马赫策德尔干涉仪和第二马赫曾德尔干涉仪。第一马赫策德尔干涉仪包括至少两个输出臂，第二马赫策德尔干涉仪包括至少两个输出臂。输出臂的端子彼此连接。

7. 发明授权

US07209508B2 Multi-channel light source and multi-channel optical module using the same 有权
标题翻译：多通道光源和多通道光模块使用相同
公开(公告)号：US07209508B2
公开(公告)日：2007-04-24
申请号：US10852519
申请日：2004-05-24
申请人： Seung-Woo Kim , Jeong-Seok Lee , In-Kuk Yun , Seong-Taek Hwang
发明人： Seung-Woo Kim , Jeong-Seok Lee , In-Kuk Yun , Seong-Taek Hwang
IPC分类号： H01S3/08 , H01S3/10
CPC分类号： H01S5/02216 , H01S5/005 , H01S5/0064 , H01S5/02248 , H01S5/02284 , H01S5/1092 , H01S5/141
摘要： A multi-channel light source includes a semiconductor optical amplifier for generating light of a wide wavelength band and outputting the generated light through a first end and a second end. The source further includes a Fabry-Perot (FP) resonator for resonating the light inputted from the semiconductor optical amplifier to generate an FP fringe and outputting the FP fringe to the semiconductor optical amplifier. The semiconductor optical amplifier amplifies the FP fringe inputted from the FP resonator and outputs the amplified FP fringe through the first end.
摘要翻译：多通道光源包括用于产生宽波段的光的半导体光放大器，并通过第一端和第二端输出产生的光。该源还包括用于使从半导体光放大器输入的光谐振以产生FP条纹并将FP条纹输出到半导体光放大器的法布里 - 珀罗（FP）谐振器。半导体光放大器放大从FP谐振器输入的FP条纹，并通过第一端输出放大的FP条纹。

8. 发明授权

US07206519B2 Duobinary optical transmission apparatus 失效
标题翻译：双色光传输装置
公开(公告)号：US07206519B2
公开(公告)日：2007-04-17
申请号：US10453005
申请日：2003-06-03
申请人： Han-Lim Lee , Gyu-Woong Lee , Seong-Taek Hwang , Byung-Chang Kang
发明人： Han-Lim Lee , Gyu-Woong Lee , Seong-Taek Hwang , Byung-Chang Kang
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/5055 , H04B10/503 , H04B10/505 , H04B10/5051 , H04B10/5167
摘要： Disclosed is a duobinary optical transmission apparatus. The duobinary optical transmission apparatusenhances nonlinear and dispersion characteristics for an intermediate-long distance transmission at a high-speed transfer rate without the use an electric LPF. The duobinary optical transmission apparatus includes a light source for generating a carrier wave, a duobinary optical signal generator for receiving a Non Return to Zero (NRZ) signal and generating a modulated optical signal generated by modulating the carrier wave according to the NRZ signal, and a Return to Zero (RZ) signal generator for converting the NRZ signal into a RZ (Return to Zero) signal. Therefore, optical intensity and a phase are modulated using only a single interferometer-type optical modulator.
摘要翻译：公开了一种二元光传输装置。双向光传输装置在不使用电LPF的情况下，以高速传输速率增加中长距离传输的非线性和色散特性。双二进制光传输装置包括用于产生载波的光源，用于接收非归零（NRZ）信号的二进制光信号发生器，并且根据NRZ信号产生调制载波产生的调制光信号;以及用于将NRZ信号转换成RZ（归零）信号的归零（RZ）信号发生器。因此，仅使用单个干涉仪型光学调制器来调制光强度和相位。

9. 发明授权

US07206485B2 Photonic crystal fiber preform and photonic crystal fiber manufactured using the same 有权
标题翻译：光子晶体纤维预制棒和使用其制造的光子晶体光纤
公开(公告)号：US07206485B2
公开(公告)日：2007-04-17
申请号：US10754027
申请日：2004-01-08
申请人： Sung-Koog Oh , Jae-Ho Lee
发明人： Sung-Koog Oh , Jae-Ho Lee
IPC分类号： G02B6/02 , G02B6/00
CPC分类号： C03B37/0122 , C03B2203/42 , G02B6/02357 , G02B6/02366 , G02B6/0238 , G02B6/028
摘要： A photonic crystal fiber (PCF) preform, from which a photonic crystal fiber is manufactured, includes a rod-shaped substrate with holes longitudinally formed therethrough in a photonic lattice structure, and material layers having at least two different indices of refraction. The material layers are disposed in the holes, respectively. Distribution of index of refraction of the photonic crystal fiber preform is controlled by arrangement of the material layers. Consequently, an optical fiber with very low optical loss, very low optical nonlinearity and excellent transmission characteristics can be easily manufactured, and an optical fiber with various characteristics, differing depending upon the lattice structure, can be realized.
摘要翻译：制造光子晶体光纤的光子晶体光纤（PCF）预成型件包括具有沿光子晶格结构纵向形成的孔的棒状基板和具有至少两个不同折射率的材料层。材料层分别设置在孔中。通过材料层的布置来控制光子晶体纤维预制棒的折射率分布。因此，可以容易地制造出具有非常低的光损耗，非常低的光学非线性和优异的透射特性的光纤，并且可以实现根据晶格结构而不同的各种特性的光纤。

10. 发明授权

US07187700B2 Method for maintaining wavelength-locking of Fabry-Perot laser regardless of change of external temperature and WDM light source using the method 失效
标题翻译：不管外部温度和WDM光源的变化如何，使用该方法维持法布里 - 珀罗激光器的波长锁定的方法
公开(公告)号：US07187700B2
公开(公告)日：2007-03-06
申请号：US10730568
申请日：2003-12-08
申请人： Dong-Jae Shin , Dae-Kwang Jung , Jea-Hyuck Lee , Jung-Kee Lee , Seong-Taek Hwang , Yun-Je Oh
发明人： Dong-Jae Shin , Dae-Kwang Jung , Jea-Hyuck Lee , Jung-Kee Lee , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H01S3/13
CPC分类号： H04B10/572 , H01S5/4006
摘要： Disclosed is a method for maintaining wavelength-locking of a Fabry-Perot laser regardless of a change of external temperature even though a temperature controller is not used, and a wavelength division multiplexing (WDM) light source using the method, as an economical light source used in a WDM optical communication field. The WDM light source comprises a Fabry-Perot laser for injecting spectrum-spliced incoherent light to amplify and output only an oscillation mode matching with a wavelength of the injected light, and a bias controlling unit for adjusting a bias current supplied to the Fabry-Perot laser to a value adjacent to a threshold current of the Fabry-Perot laser, whose threshold current is changed according to a temperature and a relationship between the injected light changed depending to a temperature and a wavelength of the oscillation mode. Therefore, the bias current having a value adjacent to the threshold current of the Fabry-Perot laser is supplied to the Fabry-Perot laser, so that the Fabry-Perot laser can maintain an excellent transmission characteristic regardless of a change of temperature even though a temperature controller is not used.
摘要翻译：公开了即使不使用温度控制器也能够保持法布里 - 珀罗激光器的波长锁定的方法，而不管外部温度的变化如何，并且使用该方法作为经济光源的波分复用（WDM）光源用于WDM光通信领域。 WDM光源包括用于注入频谱拼接的非相干光的法布里 - 珀罗激光器，以放大和仅输出与注入的光的波长匹配的振荡模式;以及偏置控制单元，用于调节提供给法布里 - 珀罗激光到与Fabry-Perot激光器的阈值电流相邻的值，其阈值电流根据温度改变，并且注入的光随温度变化和振荡模式的波长之间的关系而改变。因此，具有与法布里 - 珀罗激光器的阈值电流相邻的值的偏置电流被提供给法布里 - 珀罗激光器，使得法布里 - 珀罗激光器可以保持优异的传输特性，而不管温度的变化，即使温度控制器不使用。

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