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

US09112614B2 Correction of a local-oscillator phase error in a coherent optical receiver 有权
标题翻译：校正相干光接收机中的本地振荡器相位误差
公开(公告)号：US09112614B2
公开(公告)日：2015-08-18
申请号：US13410747
申请日：2012-03-02
申请人： Sebastian A. Randel , Alberto Sierra Noguera
发明人： Sebastian A. Randel , Alberto Sierra Noguera
IPC分类号： H04B10/06 , H04B10/61
CPC分类号： H04B10/611 , H04B10/612 , H04B10/6165
摘要： In a representative embodiment, a disclosed receiver of an optical multicarrier offset-quadrature-amplitude-modulated (MC-OQAM) signal is configured to track and compensate for the phase error in the local-oscillator (LO) signal with respect to a carrier wave of a modulated subcarrier of the optical MC-OQAM signal by tracking a minimum of a cost function that is sensitive to crosstalk between in-phase and quadrature components of the modulated subcarrier and/or crosstalk between the modulated subcarrier and at least one other modulated subcarrier of the optical MC-OQAM signal. The receiver can operate based on pure feed-forward processing and compensate the phase error in real time and without relying on pilot symbols or a PLL circuit coupled to the LO source.
摘要翻译：在代表性的实施例中，所公开的光学多载波偏移 - 正交幅度调制（MC-OQAM）信号的接收机被配置为跟踪和补偿本地振荡器（LO）信号相对于载波的相位误差通过跟踪对调制子载波的同相和正交分量之间的串扰敏感的成本函数和/或调制副载波与至少一个其它调制子载波之间的串扰的最小成本函数的光MC-OQAM信号的调制副载波的光学MC-OQAM信号。接收机可以基于纯前馈处理进行操作，并且实时地补偿相位误差，而不依赖于导频符号或耦合到LO源的PLL电路。

2. 发明申请

US20140186024A1 OPTICAL RECEIVER HAVING A MIMO EQUALIZER 有权
标题翻译：具有MIMO均衡器的光接收机
公开(公告)号：US20140186024A1
公开(公告)日：2014-07-03
申请号：US13729403
申请日：2012-12-28
申请人： Sebastian A. Randel , Rene-Jean Essiambre , Peter J. Winzer , Roland Ryf
发明人： Sebastian A. Randel , Rene-Jean Essiambre , Peter J. Winzer , Roland Ryf
IPC分类号： H04B10/08
CPC分类号： H04B10/614 , H04B10/616
摘要： An optical receiver comprising an optical-to-electrical converter and a digital processor having one or more equalizer stages. The optical-to-electrical converter is configured to mix an optical input signal and an optical local-oscillator signal to generate a plurality of electrical digital measures of the optical input signal. The digital processor is configured to process the electrical digital measures to recover the data carried by the optical input signal. At least one of the equalizer stages is configured to perform signal-equalization processing in which the electrical digital measures and/or digital signals derived from the electrical digital measures are being treated as linear combinations of arbitrarily coupled signals, rather than one or more pairs of 90-degree phase-locked I and Q signals. The latter feature enables the digital processor to more-effectively mitigate the receiver-, link-, and/or transmitter-induced signal impairments because various orthogonality-degrading effects can be mitigated in a relatively straightforward manner.
摘要翻译：一种光接收机，包括光电转换器和具有一个或多个均衡器级的数字处理器。光 - 电转换器被配置为混合光输入信号和光本地振荡器信号以产生光输入信号的多个电数字测量。数字处理器被配置为处理电数字措施以恢复由光输入信号携带的数据。均衡器级中的至少一个被配置为执行信号均衡处理，其中从电数字测量导出的电数字测量和/或数字信号被视为任意耦合信号的线性组合，而不是一对或多对 90度锁相I和Q信号。后者的特征使得数字处理器可以更有效地减轻接收机，链路和/或发射机诱发的信号损伤，因为可以以相对简单的方式减轻各种正交性降级的影响。

3. 发明授权

US09077455B2 Optical receiver having a MIMO equalizer 有权
标题翻译：具有MIMO均衡器的光接收机
公开(公告)号：US09077455B2
公开(公告)日：2015-07-07
申请号：US13729403
申请日：2012-12-28
申请人： Sebastian A. Randel , Rene-Jean Essiambre , Peter J. Winzer , Roland Ryf
发明人： Sebastian A. Randel , Rene-Jean Essiambre , Peter J. Winzer , Roland Ryf
IPC分类号： H04B10/60 , H04B10/61
CPC分类号： H04B10/614 , H04B10/616
摘要： An optical receiver comprising an optical-to-electrical converter and a digital processor having one or more equalizer stages. The optical-to-electrical converter is configured to mix an optical input signal and an optical local-oscillator signal to generate a plurality of electrical digital measures of the optical input signal. The digital processor is configured to process the electrical digital measures to recover the data carried by the optical input signal. At least one of the equalizer stages is configured to perform signal-equalization processing in which the electrical digital measures and/or digital signals derived from the electrical digital measures are being treated as linear combinations of arbitrarily coupled signals, rather than one or more pairs of 90-degree phase-locked I and Q signals. The latter feature enables the digital processor to more-effectively mitigate the receiver-, link-, and/or transmitter-induced signal impairments because various orthogonality-degrading effects can be mitigated in a relatively straightforward manner.
摘要翻译：一种光接收机，包括光电转换器和具有一个或多个均衡器级的数字处理器。光 - 电转换器被配置为混合光输入信号和光本地振荡器信号以产生光输入信号的多个电数字测量。数字处理器被配置为处理电数字措施以恢复由光输入信号携带的数据。均衡器级中的至少一个被配置为执行信号均衡处理，其中从电数字测量导出的电数字测量和/或数字信号被视为任意耦合信号的线性组合，而不是一对或多对 90度锁相I和Q信号。后者的特征使得数字处理器可以更有效地减轻接收机，链路和/或发射机诱发的信号损伤，因为可以以相对简单的方式减轻各种正交性降级的影响。

4. 发明申请

US20130230312A1 CORRECTION OF A LOCAL-OSCILLATOR PHASE ERROR IN A COHERENT OPTICAL RECEIVER 有权
标题翻译：相邻光接收机中局部振荡器相位误差的校正
公开(公告)号：US20130230312A1
公开(公告)日：2013-09-05
申请号：US13410747
申请日：2012-03-02
申请人： Sebastian A. Randel , Alberto Sierra Noguera
发明人： Sebastian A. Randel , Alberto Sierra Noguera
IPC分类号： H04B10/08 , H04B10/06
CPC分类号： H04B10/611 , H04B10/612 , H04B10/6165
摘要： In a representative embodiment, a disclosed receiver of an optical multicarrier offset-quadrature-amplitude-modulated (MC-OQAM) signal is configured to track and compensate for the phase error in the local-oscillator (LO) signal with respect to a carrier wave of a modulated subcarrier of the optical MC-OQAM signal by tracking a minimum of a cost function that is sensitive to crosstalk between in-phase and quadrature components of the modulated subcarrier and/or crosstalk between the modulated subcarrier and at least one other modulated subcarrier of the optical MC-OQAM signal. The receiver can operate based on pure feed-forward processing and compensate the phase error in real time and without relying on pilot symbols or a PLL circuit coupled to the LO source.
摘要翻译：在代表性的实施例中，所公开的光学多载波偏移 - 正交幅度调制（MC-OQAM）信号的接收机被配置为跟踪和补偿本地振荡器（LO）信号相对于载波的相位误差通过跟踪对调制子载波的同相和正交分量之间的串扰敏感的成本函数和/或调制副载波与至少一个其它调制子载波之间的串扰的最小成本函数的光MC-OQAM信号的调制副载波的光学MC-OQAM信号。接收机可以基于纯前馈处理进行操作，并且实时地补偿相位误差，而不依赖于导频符号或耦合到LO源的PLL电路。

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