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公开(公告)号：US10567209B1
公开(公告)日：2020-02-18
申请号：US16224174
申请日：2018-12-18
发明人： Mehmet Aydinlik , Timo Pfau , Christian Rasmussen
摘要： A method, system, and apparatus for encoding a data for transmission across a communication link, the comprising encoding the data into a constellation; wherein the constellation is of a power 2n; wherein n is an odd number; wherein encoding the constellation creates outer constellation points forming a square at an edge of the constellation.
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公开(公告)号：US11923910B1
公开(公告)日：2024-03-05
申请号：US17531733
申请日：2021-11-20
发明人： Christian Rasmussen , Ian Dedic , Benny Mikkelsen
IPC分类号： H04B10/00 , H04B1/04 , H04B10/556 , H04B10/80 , H04J14/00
CPC分类号： H04B10/803 , H04B1/04 , H04B10/556 , H04B2001/0408
摘要： A CMOS integrated circuit comprising digital-to-analogue converters (DACs), analogue-to-digital converters (ADCs), a digital signal processor (DSP), on-chip switching, an on-chip processor; and logic enabling to receive data from data sources in a 5G network, combine the data from the data sources into a single data stream, encode the single data stream using the DSP, and cause the encoded single data stream to be transmitted to another device in the 5G network.
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公开(公告)号：US10326530B2
公开(公告)日：2019-06-18
申请号：US15853439
申请日：2017-12-22
摘要： Disclosed are bias control methods for Mach-Zehnder modulators for the generation of optical QAM signals while ensuring correct I/Q polarity of the generated optical QAM signal. One exemplary method involves temporarily offsetting I and Q biases from ideal transmission null bias points while another illustrative method temporarily makes I and Q data streams identical.
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4.发明申请公开(公告)号：US20180191444A1
公开(公告)日：2018-07-05
申请号：US15853439
申请日：2017-12-22
CPC分类号： H04B10/541 , H04B10/50575
摘要： Disclosed are bias control methods for Mach-Zehnder modulators for the generation of optical QAM signals while ensuring correct I/Q polarity of the generated optical QAM signal. One exemplary method involves temporarily offsetting I and Q biases from ideal transmission null bias points while another illustrative method temporarily makes I and Q data streams identical.
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公开(公告)号：US11296795B1
公开(公告)日：2022-04-05
申请号：US17185404
申请日：2021-02-25
IPC分类号： H04B10/556 , H04L1/00
摘要： In a first embodiment, a method and apparatus for encoding a first spectral efficiency into a second spectral efficiency; wherein the second spectral efficiency has a higher order than the first spectral efficiency. In a second embodiment, a method and apparatus for achieving at least two spectral efficiencies using a single type of modulation.
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公开(公告)号：US09853737B2
公开(公告)日：2017-12-26
申请号：US14615350
申请日：2015-02-05
CPC分类号： H04B10/541 , H04B10/50575
摘要： Disclosed are bias control methods for Mach-Zehnder modulators for the generation of optical QAM signals while ensuring correct I/Q polarity of the generated optical QAM signal. One exemplary method involves temporarily offsetting I and Q biases from ideal transmission null bias points while another illustrative method temporarily makes I and Q data streams identical.
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公开(公告)号：US09768884B2
公开(公告)日：2017-09-19
申请号：US14056520
申请日：2013-10-17
发明人： Peijun Shan , Christian Rasmussen
CPC分类号： H04B10/6161
摘要： Disclosed herein are methods, structures, and devices that provide multi-range frequency domain compensation of chromatic dispersion within optical transmission systems that offer significant operational power savings. More specifically, a method of operating frequency domain filtering structures and circuits including FFT, frequency-domain filter multiplication and iFFT functions at a lower duty cycle for shorter overlap such that significant power savings is realized.
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公开(公告)号：US10958353B1
公开(公告)日：2021-03-23
申请号：US16858869
申请日：2020-04-27
摘要： In a first embodiment, method and apparatus for encoding a first spectral efficiency into a second spectral efficiency; wherein the second spectral efficiency has a higher order than the first spectral efficiency. In a second embodiment, a method and apparatus for achieving at least two spectral efficiencies using a single type of modulation.
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9.发明授权公开(公告)号：US10305590B2
公开(公告)日：2019-05-28
申请号：US15839744
申请日：2017-12-12
IPC分类号： H04B10/077 , H04B10/079
摘要： Disclosed are methods for monitoring and measuring Optical Signal-To-Noise Ratios in optical communications systems. One exemplary method involves intentionally inserting zero power symbols into an optical signal stream such that those periods of time in which only zero power symbols are transmitted may be detected and compared with periods of time in which signals modulated with information including both signal and noise are detected such that the OSNR may be determined.
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10.发明申请公开(公告)号：US20180102842A1
公开(公告)日：2018-04-12
申请号：US15839744
申请日：2017-12-12
IPC分类号： H04B10/079 , H04B10/077
CPC分类号： H04B10/07953 , H04B10/0775
摘要： Disclosed are methods for monitoring and measuring Optical Signal-To-Noise Ratios in optical communications systems. One exemplary method involves intentionally inserting zero power symbols into an optical signal stream such that those periods of time in which only zero power symbols are transmitted may be detected and compared with periods of time in which signals modulated with information including both signal and noise are detected such that the OSNR may be determined.
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