专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08718490B2 Coherent optical orthogonal frequency division multiplexing (OFDM) reception using self optical carrier extraction 有权
标题翻译：使用自光载波提取的相干光正交频分复用（OFDM）接收
公开(公告)号：US08718490B2
公开(公告)日：2014-05-06
申请号：US12183332
申请日：2008-07-31
申请人： Lei Xu , Junqiang Hu , Ting Wang , Dayou Qian , Yutaka Yano
发明人： Lei Xu , Junqiang Hu , Ting Wang , Dayou Qian , Yutaka Yano
IPC分类号： H04B10/61
CPC分类号： H04L27/2647 , H04B10/63
摘要： A method includes producing interference between a received optical OFDM signal and an optical carrier extracted from the received optical OFDM signal to provide optical coherent detection of the received optical OFDM signal. Preferably, producing the interference includes optically splitting the received optical OFDM signal into a first part that is filtered to extract the carrier from the received optical OFDM signal and a second part similar to the received optical OFDM signal.
摘要翻译：一种方法包括：从所接收的光学OFDM信号中提取接收到的光OFDM信号与光载波之间产生干扰，以提供所接收的光OFDM信号的光相干检测。优选地，产生干扰包括将所接收的光学OFDM信号光学分割成被滤波的第一部分，以从接收的光学OFDM信号中提取载波，以及类似于接收的光学OFDM信号的第二部分。

2. 发明申请

US20090092393A1 Coherent Optical Orthogonal Frequency Division Multiplexing (OFDM) Reception Using Self Optical Carrier Extraction 有权
标题翻译：使用自光载波提取的相干光学正交频分复用（OFDM）接收
公开(公告)号：US20090092393A1
公开(公告)日：2009-04-09
申请号：US12183332
申请日：2008-07-31
申请人： Lei Xu , Junqiang Hu , Ting Wang , Dayou Qian , Yutaka Yano
发明人： Lei Xu , Junqiang Hu , Ting Wang , Dayou Qian , Yutaka Yano
IPC分类号： H04J11/00 , H04B10/06
CPC分类号： H04L27/2647 , H04B10/63
摘要： A method includes producing interference between a received optical OFDM signal and an optical carrier extracted from the received optical OFDM signal to provide optical coherent detection of the received optical OFDM signal. Preferably, producing the interference includes optically splitting the received optical OFDM signal into a first part that is filtered to extract the carrier from the received optical OFDM signal and a second part similar to the received optical OFDM signal.
摘要翻译：一种方法包括：从所接收的光学OFDM信号中提取接收到的光OFDM信号与光载波之间产生干扰，以提供所接收的光OFDM信号的光相干检测。优选地，产生干扰包括将所接收的光学OFDM信号光学分割成被滤波的第一部分，以从接收的光学OFDM信号中提取载波，以及类似于接收的光学OFDM信号的第二部分。

3. 发明授权

US08184973B2 Direct detection for receiving polarization multiplexing signals 有权
标题翻译：用于接收偏振复用信号的直接检测
公开(公告)号：US08184973B2
公开(公告)日：2012-05-22
申请号：US12371233
申请日：2009-02-13
申请人： Dayou Qian , Lei Xu , Junqiang Hu , Ting Wang
发明人： Dayou Qian , Lei Xu , Junqiang Hu , Ting Wang
IPC分类号： H04J14/06 , H04B10/158
CPC分类号： H04J14/06 , H04B10/61 , H04B10/676
摘要： There is provided a method for detecting optical signals comprising employing a photo diode to both directly detect a received optical signal and convert it into an electrical signal for recovery of data bit stream information in the received optical signal, the received optical signal being derived from a separation of two polarization multiplexed optical signals that were combined before being received.
摘要翻译：提供了一种用于检测光信号的方法，包括采用光电二极管直接检测接收到的光信号并将其转换成用于恢复所接收的光信号中的数据位流信息的电信号，所接收的光信号从在接收之前组合的两个偏振复用光信号的分离。

4. 发明申请

US20090202243A1 Direct Detection For Receiving Polarization Multiplexing Signals 有权
标题翻译：用于接收极化复用信号的直接检测
公开(公告)号：US20090202243A1
公开(公告)日：2009-08-13
申请号：US12371233
申请日：2009-02-13
申请人： Dayou Qian , Lei Xu , Junqiang Hu , Ting Wang
发明人： Dayou Qian , Lei Xu , Junqiang Hu , Ting Wang
IPC分类号： H04J14/06
CPC分类号： H04J14/06 , H04B10/61 , H04B10/676
摘要： There is provided a method for detecting optical signals comprising employing a photo diode to both directly detect a received optical signal and convert it into an electrical signal for recovery of data bit stream information in the received optical signal, the received optical signal being derived from a separation of two polarization multiplexed optical signals that were combined before being received.
摘要翻译：提供了一种用于检测光信号的方法，包括采用光电二极管直接检测接收到的光信号并将其转换成用于恢复所接收的光信号中的数据位流信息的电信号，所接收的光信号从在接收之前组合的两个偏振复用光信号的分离。

5. 发明授权

US08000604B2 Orthogonal frequency division multiple access (OFDMA) based passive optical network (PON) architecture and its extension to long distance 有权
标题翻译：基于正交频分多址（OFDMA）的无源光网络（PON）架构及其对长距离的扩展
公开(公告)号：US08000604B2
公开(公告)日：2011-08-16
申请号：US12039981
申请日：2008-02-29
申请人： Dayou Qian , Junqiang Hu , Jianjun Yu , Philip Nan Ji , Lei Xu , Ting Wang , Milorad Cvijetic , Toshihiko Kusano
发明人： Dayou Qian , Junqiang Hu , Jianjun Yu , Philip Nan Ji , Lei Xu , Ting Wang , Milorad Cvijetic , Toshihiko Kusano
IPC分类号： H04J14/02
CPC分类号： H04L5/023 , H04J14/0226 , H04J14/0227 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282 , H04J14/0298 , H04L5/0007
摘要： A passive optical network (PON) device, system and method include an optical line terminal (OLT) receiver configured to receive multiple signals at different wavelengths simultaneously and enable multiple transmitters to operate at the same time during one upstream time slot. The optical line terminal employs Orthogonal Frequency Division Multiple Access (OFDMA) to transparently support a plurality of applications and enable dynamic bandwidth allocation among these applications where the bandwidth is allocated in two dimensional frequency and time space.
摘要翻译：无源光网络（PON）设备，系统和方法包括配置为同时接收不同波长的多个信号的光线路终端（OLT）接收机，并使得多个发射机能够在一个上行时隙同时进行操作。光线路终端使用正交频分多址（OFDMA）来透明地支持多个应用，并且在带宽被分配在二维频率和时间空间中的这些应用中实现动态带宽分配。

6. 发明授权

US08064775B2 Generation of at least 100 Gbit/s optical transmission 有权
标题翻译：产生至少100Gbit / s的光传输
公开(公告)号：US08064775B2
公开(公告)日：2011-11-22
申请号：US12183368
申请日：2008-07-31
申请人： Jianjun Yu , Lei Xu , Philip Ji , Ting Wang , Dayou Qian , Yutaka Yano
发明人： Jianjun Yu , Lei Xu , Philip Ji , Ting Wang , Dayou Qian , Yutaka Yano
IPC分类号： H04B10/04 , H04B10/12
CPC分类号： H04B10/5165 , H04B10/54 , H04B10/548 , H04L27/2601
摘要： A method includes generating at least two lightwave carriers from a lightwave source, the carriers having a wavelength spacing, creating an up-subchannel and a down-subchannel orthogonal to one another and spaced apart based on the fixed wavelength spacing from modulations of the lightwave carriers according to respective up-converted OFDM signals that are carrier suppressed, and combining one lightwave from the up-subchannel and one lightwave from the down-subchannel into an optical channel for transmission over an optical fiber.
摘要翻译：一种方法包括从光波源产生至少两个光波载波，所述载波具有波长间隔，产生基于与光波载波调制的固定波长间隔彼此正交并且间隔开的向上子信道和下信道根据载波抑制的各自的上变换的OFDM信号，并将来自上信道的一个光波和来自下信道的一个光波组合成光信道以在光纤上传输。

7. 发明申请

US20100028001A1 Generation Of At Least 100 Gbit/s Optical Transmission 有权
标题翻译：生成最少100 Gbit / s的光传输
公开(公告)号：US20100028001A1
公开(公告)日：2010-02-04
申请号：US12183368
申请日：2008-07-31
申请人： Jianjun Yu , Lei Xu , Philip Nan Ji , Ting Wang , Dayou Qian , Yutaka Yano
发明人： Jianjun Yu , Lei Xu , Philip Nan Ji , Ting Wang , Dayou Qian , Yutaka Yano
IPC分类号： H04J14/00
CPC分类号： H04B10/5165 , H04B10/54 , H04B10/548 , H04L27/2601
摘要： A method includes generating at least two lightwave carriers from a lightwave source, the carriers having a wavelength spacing, creating an up-subchannel and a down-subchannel orthogonal to one another and spaced apart based on the fixed wavelength spacing from modulations of the lightwave carriers according to respective up-converted OFDM signals that are carrier suppressed, and combining one lightwave from the up-subchannel and one lightwave from the down-subchannel into an optical channel for transmission over an optical fiber.
摘要翻译：一种方法包括从光波源产生至少两个光波载波，所述载波具有波长间隔，产生基于与光波载波调制的固定波长间隔彼此正交并且间隔开的向上子信道和下信道根据载波抑制的各自的上变换的OFDM信号，并将来自上信道的一个光波和来自下信道的一个光波组合成光信道以在光纤上传输。

8. 发明申请

US20100027994A1 Phase Modulation Of An Optical Orthogonal Frequency Division Multiplexing Signal 审中-公开
标题翻译：光正交频分复用信号的相位调制
公开(公告)号：US20100027994A1
公开(公告)日：2010-02-04
申请号：US12183346
申请日：2008-07-31
申请人： Lei Xu , Yutaka Yano , Ting Wang , Junqiang Hu , Makoto Shibutani
发明人： Lei Xu , Yutaka Yano , Ting Wang , Junqiang Hu , Makoto Shibutani
IPC分类号： H04J14/00
CPC分类号： H04J14/0298 , H04B10/548 , H04L5/12 , H04L27/2614 , H04L27/2627 , H04L27/2697
摘要： A method includes generating an optical orthogonal frequency division multiplexing OFDM signal with in-phase and quadrature-phase components; varying an RF carrier according to the in-phase and quadrature-phase components; and modulating a phase of a lightwave carrier according to the varied RF carrier to generate an optical OFDM signal with equalized amplitude.
摘要翻译：一种方法包括产生具有同相和正交相分量的光正交频分复用OFDM信号; 根据同相和正交相分量改变RF载波; 以及根据变化的RF载波调制光波载波的相位以产生具有相等振幅的光OFDM信号。

9. 发明申请

US20080279559A1 High Frequency Optical Millimeter-Wave Generation and Wavelength Reuse 有权
标题翻译：高频光学毫米波生成和波长重用
公开(公告)号：US20080279559A1
公开(公告)日：2008-11-13
申请号：US12117347
申请日：2008-05-08
申请人： Jianjun Yu , Dayou Qian , Lei Xu , Ting Wang
发明人： Jianjun Yu , Dayou Qian , Lei Xu , Ting Wang
IPC分类号： H04B10/00 , H04B10/04
CPC分类号： H04B10/25758
摘要： A method includes generating an optical millimeter wave signal for modulation of a first data signal, and deriving from the generated optical millimeter wave signal a subsequent light source for modulation of a second data signal. More specifically the generating includes modulating a light wave to a multiple of a frequency of an oscillating signal. Alternatively, the generating includes modulating a data signal mixed with an oscillating signal to a multiple of a frequency of the oscillating signal. The deriving includes modulating a frequency component filtered from a data modulation of the generated optical millimeter wave signal.
摘要翻译：一种方法包括产生用于调制第一数据信号的光学毫米波信号，以及从所生成的光学毫米波信号中导出用于调制第二数据信号的后续光源。更具体地，生成包括将光波调制到振荡信号的频率的倍数。或者，生成包括将与振荡信号混合的数据信号调制为振荡信号的频率的倍数。导出包括调制从产生的光学毫米波信号的数据调制滤波的频率分量。

10. 发明授权

US08724998B2 Carrier and subcarrier hopping for optical OFDM security 有权
标题翻译：载波和子载波跳频用于光OFDM安全
公开(公告)号：US08724998B2
公开(公告)日：2014-05-13
申请号：US13478892
申请日：2012-05-23
申请人： Lei Xu , Dayou Qian , Ting Wang
发明人： Lei Xu , Dayou Qian , Ting Wang
IPC分类号： H04B10/04 , H04J14/00
CPC分类号： H04L5/0012 , H04L5/0008 , H04L27/2642 , H04L27/2647
摘要： Methods and systems for secure communication include assigning data streams to respective orthogonal sub-carriers according to random number information at a transmitter. The data streams are modulated onto the respective orthogonal sub-carriers before the orthogonal sub-carriers are transmitted. The random number information is transmitted on a second medium, separate from the transmission medium. The orthogonal sub-carriers are received from the transmission medium at a receiver, while the random number information is received from the second medium at the receiver. The orthogonal sub-carriers are associated with data streams using the random number information and demodulated to produce data for the associated data stream.
摘要翻译：用于安全通信的方法和系统包括根据发射机处的随机数信息将数据流分配给各个正交子载波。在发送正交子载波之前，将数据流调制到各个正交子载波上。在与传输介质分离的第二介质上发送随机数信息。在接收机处从传输介质接收正交子载波，而在接收机处从第二媒体接收随机数信息。正交子载波与使用随机数信息的数据流相关联并被解调以产生用于相关联的数据流的数据。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式