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51. 发明申请

US20100086314A1 Method and Apparatus for an Optical Duty Cycle for an Optical Digital Coherent System 有权
标题翻译：用于光数字相干系统的光占空比的方法和装置
公开(公告)号：US20100086314A1
公开(公告)日：2010-04-08
申请号：US12562251
申请日：2009-09-18
申请人： Jianjun Yu , Lei Xu , Dayou Qian , Ting Wang
发明人： Jianjun Yu , Lei Xu , Dayou Qian , Ting Wang
IPC分类号： H04B10/04
CPC分类号： H04B10/50
摘要： An optical apparatus includes a quadrature phase shift keying modulator for generating a non-return-to-zero quadrature phase shift keyed NRZ-QPSK signal from a received lightwave, the modulator being driven by a radio frequency RF signal, an intensity modulator for carving the NRZ-QPSK signal to return-to-zero RZ pulses with a different duty cycle than that of the NRZ-QPSK, the intensity modulator being driven by a radio frequency RF clock signal to change the NRZ-QPSK to an RZ-QPSK signal, and an optical filter with a narrow band for filtering the signal from the intensity modulator to increase optical power that is useable by an optical digital coherent detection system.
摘要翻译：光学装置包括：正交相移键控调制器，用于从接收到的光波产生不归零正交相移键控的NRZ-QPSK信号，调制器由射频RF信号驱动;强度调制器，用于雕刻 NRZ-QPSK信号以与NRZ-QPSK的占空比不同的占空比的归零RZ脉冲，强度调制器由射频RF时钟信号驱动，以将NRZ-QPSK改变为RZ-QPSK信号，以及具有窄带的滤光器，用于对来自强度调制器的信号进行滤波，以增加可由光学数字相干检测系统使用的光功率。

52. 发明申请

US20090310966A1 DIRECT DETECTION RECEIVER USING CROSS-POLARIZATION INTERFEROMETER FOR POLMUX-ASK SYSTEM 有权
标题翻译：用于POLMUX-ASK系统的交叉偏振干涉仪的直接检测接收器
公开(公告)号：US20090310966A1
公开(公告)日：2009-12-17
申请号：US12398510
申请日：2009-03-05
申请人： Dayou Qian , Ting Wang
发明人： Dayou Qian , Ting Wang
IPC分类号： H04J14/06
CPC分类号： H04J14/06 , H04B10/676 , H04L27/06
摘要： A differential delay detection system and method includes an optical splitter to split an incoming optical signal between a first path and a second path. The first path includes a cross-polarization interferometer configured to separately generate polarization independent outputs using split paths and to generate cross-polarization interference outputs, balanced photodetectors to aid in removing cross-polarization beating noise, and a polarization demultiplexer configured to combine the polarization independent outputs and the cross-polarization interference outputs from the cross-polarization interferometer with updated coefficients received from the second path to remove the cross-polarization mixed signals. The second path includes a training signal receiver configured to compute the updated coefficients and output the updated coefficients to the polarization demultiplexer.
摘要翻译：差分延迟检测系统和方法包括：光分路器，用于在第一路径和第二路径之间分离输入光信号。第一路径包括交叉偏振干涉仪，该交叉偏振干涉仪被配置为使用分离路径分开产生与偏振无关的输出并产生交叉极化干扰输出，平衡光电探测器以帮助去除交叉极化跳动噪声;以及偏振解复用器，其被配置为组合偏振独立输出和来自交叉偏振干涉仪的交叉极化干扰输出，其具有从第二路径接收的更新系数以去除交叉极化混合信号。第二路径包括被配置为计算更新的系数并将更新的系数输出到偏振解复用器的训练信号接收器。

53. 发明授权

US08699640B2 Transmitter compensation in decoding of intensity modulated optical OFDM with direct detection 有权
标题翻译：用于直接检测的强度调制光OFDM解码中的发射机补偿
公开(公告)号：US08699640B2
公开(公告)日：2014-04-15
申请号：US12630167
申请日：2009-12-03
申请人： Junqiang Hu , Dung-Huy Han , Ting Wang
发明人： Junqiang Hu , Dung-Huy Han , Ting Wang
IPC分类号： H04L25/08
CPC分类号： H04L27/2649 , H04L25/0307 , H04L25/03159 , H04L27/223 , H04L27/2697 , H04L2025/03388 , H04L2025/03414
摘要： A method by an optical OFDM receiver includes converting a received optical signal to an electrical signal, deriving a digital signal from the electrical signal, and emulating, with an iterative OFDM demodulator responsive to the digital signal, a transmitter effect in the received signal of lower peak clipping and top peak distortion and applying the transmitter effect to the received signal and a decision-made signal for estimating an error function to be applied to a demodulation of the received optical signal.
摘要翻译：光OFDM接收机的方法包括将接收到的光信号转换为电信号，从电信号导出数字信号，并用响应于数字信号的迭代OFDM解调器仿真接收信号中的发射机效应较低峰值限幅和顶峰失真，并将发送器效应应用于接收信号，以及用于估计要应用于所接收的光信号的解调的误差函数的决定信号。

54. 发明申请

US20110310998A1 SYSTEMS AND METHODS FOR PERFORMING PARALLEL DIGITAL PHASE-LOCKED-LOOP 有权
标题翻译：用于执行并行数字相位锁定环的系统和方法
公开(公告)号：US20110310998A1
公开(公告)日：2011-12-22
申请号：US12818158
申请日：2010-06-18
申请人： Junqiang Hu , Tyrone Kwok , Ting Wang
发明人： Junqiang Hu , Tyrone Kwok , Ting Wang
IPC分类号： H04L27/00 , H03L7/08
CPC分类号： H03L7/07 , H04L2027/0067
摘要： A parallel phase locked loop (PLL) system includes a first chain of a plurality of pre-locking PLLs that operates from a free-run state to a locked state; and a second chain of a plurality of PLLs to work from the locked-state to recover signal output.
摘要翻译：并行锁相环（PLL）系统包括从自由运行状态到锁定状态操作的多个预锁定PLL的第一链; 以及多个PLL的第二链，其从锁定状态工作以恢复信号输出。

55. 发明申请

US20090092392A1 VIRTUAL I/Q MULTIPLEXING IN OPTICAL CODE DIVISION FOR SECURE LOCAL AREA OFDM 审中-公开
标题翻译：用于安全的本地区域的光学代码段的虚拟I / Q多路复用OFDM
公开(公告)号：US20090092392A1
公开(公告)日：2009-04-09
申请号：US12181656
申请日：2008-07-29
申请人： Yue-Kai Huang , Ting Wang , Junqiang Hu
发明人： Yue-Kai Huang , Ting Wang , Junqiang Hu
IPC分类号： H04J14/00
CPC分类号： H04J14/005 , H04J14/02 , H04L5/0007 , H04L5/0044 , H04L27/2626 , H04L27/2647
摘要： A system and method for virtual I/Q multiplexing in optical code division for secure local area OFDM includes encoding a wide spectrum signal, which includes a plurality of spectral bins, to provide a complementary spectral coding over at least two channels. The complementary spectral codings are intensity modulated with opposite polarity for each channel. An M-ary Orthogonal Frequency Division Multiplexing (OFDM) signal is modulated using the complementary spectral codings of opposite polarity with separate complementary spectral encoded (CSE) optical codes to provide a virtual in-phase (I) and quadrature (Q) (I/Q) multiplexing for the OFDM signal.
摘要翻译：用于安全局域OFDM的光码分区中的虚拟I / Q复用的系统和方法包括对包含多个频谱区的宽频谱信号进行编码，以在至少两个信道上提供互补的频谱编码。对于每个通道，互补的频谱编码是以相反极性强度调制的。使用具有相反极性的互补频谱编码，使用单独的互补频谱编码（CSE）光码来调制M正交频分复用（OFDM）信号，以提供虚拟同相（I）和正交（Q）（I / Q）复用为OFDM信号。

56. 发明授权

US08169683B2 Optical signal generation with D/A converters and optical clock pulse stream 有权
标题翻译：具有D / A转换器和光时钟脉冲串的光信号生成
公开(公告)号：US08169683B2
公开(公告)日：2012-05-01
申请号：US12568767
申请日：2009-09-29
申请人： Junqiang Hu , Yutaka Yano , Ting Wang
发明人： Junqiang Hu , Yutaka Yano , Ting Wang
IPC分类号： G02F1/03
CPC分类号： H04B10/508 , H04B10/548 , Y10S359/90
摘要： An apparatus includes an optical train pulse generator for generating continuous optical pulses each having a narrow width; a clock source having a high frequency for triggering the generator and operable as a sampling clock; a digital-to-analog converter DAC for converting an input signal from a digital signal processor, the DAC responsive to the sampling clock; a data modulator responsive to an amplified output from the DAC to modulate the continuous optical pulses from the train pulse generator; and a filter for removing higher frequency harmonics from the modulated continuous optical pulses out of the data modulator.
摘要翻译：一种装置包括用于产生每个具有窄宽度的连续光脉冲的光列脉冲发生器; 具有用于触发发生器并可操作为采样时钟的高频的时钟源; 数模转换器DAC，用于转换来自数字信号处理器的输入信号，DAC响应采样时钟; 响应于来自DAC的放大输出的数据调制器来调制来自列车脉冲发生器的连续光脉冲; 以及用于从数据调制器中调制的连续光脉冲中去除更高频率谐波的滤波器。

57. 发明申请

US20130084063A1 HITLESS PROTECTION FOR TRAFFIC RECEIVED FROM 1+1 PROTECTING LINE CARDS IN HIGH-SPEED SWITCHING SYSTEMS 有权
标题翻译： 1 + 1保护线卡在高速切换系统中接收到的交通无效保护
公开(公告)号：US20130084063A1
公开(公告)日：2013-04-04
申请号：US13543570
申请日：2012-07-06
申请人： Junqiang Hu , Philip N. Ji , Ting Wang , Yoshiaki Aono
发明人： Junqiang Hu , Philip N. Ji , Ting Wang , Yoshiaki Aono
IPC分类号： H04L12/24 , H04B10/08
CPC分类号： H04L49/10
摘要： A communication system includes a synchronous interface coupled to a switch fabric; cells for switching; and a 1+1 protection unit with a primary and back-up line cards.
摘要翻译：通信系统包括耦合到交换结构的同步接口; 用于切换的单元; 以及带有主和备用线卡的1 + 1保护单元。

58. 发明申请

US20110304369A1 METHOD FOR SOURCE SYNCHRONOUS HIGH-SPEED SIGNAL SYNCHRONIZATION 有权
标题翻译：源同步高速信号同步方法
公开(公告)号：US20110304369A1
公开(公告)日：2011-12-15
申请号：US12814371
申请日：2010-06-11
申请人： Junqiang Hu , Tyrone Kwok , Ting Wang
发明人： Junqiang Hu , Tyrone Kwok , Ting Wang
IPC分类号： H03L7/00
CPC分类号： H03L7/0814
摘要： A source synchronous signal synchronization system includes a differential signal receiver; a tunable input delay element coupled to the receiver; an input serializer/deserializer (ISerDes) coupled to the tunable input delay; an alignment unit coupled to the ISerDes; and a delay control unit coupled to the tunable input delay, the ISerDes, and the alignment unit.
摘要翻译：源同步信号同步系统包括差分信号接收机; 耦合到所述接收器的可调输入延迟元件; 耦合到可调输入延迟的输入串行器/解串器（ISerDes）; 耦合到ISerDes的对准单元; 以及与可调输入延迟耦合的延迟控制单元，ISerDes和对准单元。

59. 发明申请

US20080279556A1 Wavelength Division Multiplexed Passive Optical Network 有权
标题翻译：波分复用无源光网络
公开(公告)号：US20080279556A1
公开(公告)日：2008-11-13
申请号：US12115046
申请日：2008-05-05
申请人： Jianjun Yu , Yuanqiu Luo , Junqiang Hu , Ting Wang
发明人： Jianjun Yu , Yuanqiu Luo , Junqiang Hu , Ting Wang
IPC分类号： H04J14/02
CPC分类号： H04B10/2587 , H04J14/0282
摘要： Data is transmitted between a central office and customer premises by a wavelength division multiplex passive optical network. Two laser beams with separate wavelengths are transmitted from the central office to an optical network unit in the customer premises. Both laser beams carry downstream data. One laser beam is intensity modulated by on/off keying. The other laser beam is phase modulated by differential phase shift keying, which maintains a constant optical intensity. The first laser beam is received by a first optical receiver, which demodulates the first downstream data. The second laser beam is split in two. One laser beam is sent to a second optical receiver, which demodulates the second downstream data. The other laser beam is sent to a reflective semiconductor amplifier, which modulates the beam with upstream data and transmits the beam back to a receiver in the central optical system.
摘要翻译：数据通过波分复用无源光网络在中心局和客户驻地之间传输。具有分离波长的两个激光束从中心局传输到客户驻地的光网络单元。两个激光束都携带下行数据。一个激光束通过开/关键控进行强度调制。其他激光束通过差分相移键控进行相位调制，保持恒定的光强度。第一激光束由第一光接收器接收，第一光接收器解调第一下行数据。第二激光束分为两部分。一个激光束被发送到第二光接收器，其解调第二下行数据。另一个激光束被发送到反射半导体放大器，该反射半导体放大器利用上行数据对光束进行调制，并将光束传送回中央光学系统中的接收器。

60. 发明授权

US08611762B2 System and method for frequency-domain chromatic dispersion and polarization mode dispersion compensation with time-domain channel estimation 有权
标题翻译：用于频域色散和偏振模色散补偿的时域信道估计的系统和方法
公开(公告)号：US08611762B2
公开(公告)日：2013-12-17
申请号：US12943574
申请日：2010-11-10
申请人： Junqiang Hu , Ting Wang
发明人： Junqiang Hu , Ting Wang
IPC分类号： H04B10/00
CPC分类号： H04B10/6161 , H04B10/25133 , H04B10/6162 , H04B10/697
摘要： A system and method are disclosed which compensate for chromatic dispersion and polarization mode dispersion in a digital signal. The signal is adjusted for chromatic dispersion in the frequency-domain. The signal is then converted to the time-domain and at least a portion of the signal is estimated to produce channel parameters. The channel parameters are converted to the frequency domain and used to compensate for polarization mode dispersion in the signal.
摘要翻译：公开了一种补偿数字信号中的色散和偏振模色散的系统和方法。在频域中调整色散的信号。然后将信号转换为时域，估计信号的至少一部分以产生信道参数。通道参数转换为频域，用于补偿信号中的偏振模色散。

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