Sethumadhavan; Chandrasekhar

Patent Applications and Registrations

Patent applications and USPTO patent grants for Sethumadhavan; Chandrasekhar.The latest application filed is for "methods and apparatus for joint use of probabilistic signal shaping and forward error correction".

Company Profile

3.29.25

Sethumadhavan; Chandrasekhar - Old Bridge NJ
Sethumadhavan; Chandrasekhar - Matawan NJ
Sethumadhavan; Chandrasekhar - Murray Hill NJ
- Matawan NJ US

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Methods and apparatus for joint use of probabilistic signal shaping and forward error correction Grant 10,972,215 - Cho , et al. April 6, 2	2021-04-06
Methods And Apparatus For Joint Use Of Probabilistic Signal Shaping And Forward Error Correction App 20190280809 - Cho; Joon Ho ; et al.	2019-09-12
Optical transport system employing direct-detection self-coherent receivers and compatible transmitters Grant 10,404,400 - Chen , et al. Sep	2019-09-03
Optical Transport System Employing Direct-detection Self-coherent Receivers And Compatible Transmitters App 20180294913 - Chen; Xi ; et al.	2018-10-11
Feedback for electronic pre-distortion in an optical transmitter Grant 9,419,722 - Winzer , et al. August 16, 2	2016-08-16
Method and apparatus for space-division multiplexing systems Grant 9,344,779 - Sethumadhavan , et al. May 17, 2	2016-05-17
Communication through multiplexed one-dimensional optical signals Grant 9,300,400 - Liu , et al. March 29, 2	2016-03-29
Feedback For Electronic Pre-distortion In An Optical Transmitter App 20160065311 - Winzer; Peter J. ; et al.	2016-03-03
Detection and removal of cycle slip from received signals Grant 9,264,146 - Liu , et al. February 16, 2	2016-02-16
Frequency-dependent I/Q-signal imbalance correction coherent optical transceivers Grant 9,203,682 - Winzer , et al. December 1, 2	2015-12-01
Dispersion management for inhomogeneous fiber-optic links Grant 9,160,456 - Liu , et al. October 13, 2	2015-10-13
Detection And Removal Of Cycle Slip From Received Signals App 20150215050 - Liu; Xiang ; et al.	2015-07-30
Fiber-nonlinearity Pre-compensation Processing For An Optical Transmitter App 20150086193 - Liu; Xiang ; et al.	2015-03-26
Dispersion Management For Inhomogeneous Fiber-optic Links App 20150086218 - Liu; Xiang ; et al.	2015-03-26
Method and apparatus for transmitting high-level QAM optical signals with binary drive signals Grant 8,953,949 - Liu , et al. February 10, 2	2015-02-10
Frequency equalization for an optical transmitter Grant 08923706 -	2014-12-30
Frequency equalization for an optical transmitter Grant 8,923,706 - Sethumadhavan , et al. December 30, 2	2014-12-30
Apparatus and method for generating interleaved return-to-zero (IRZ) polarization-division multiplexed (PDM) signals Grant 8,842,997 - Liu , et al. September 23, 2	2014-09-23
Pilot-assisted data transmission in a coherent optical-communication system Grant 8,660,433 - Liu , et al. February 25, 2	2014-02-25
Frequency Equalization For An Optical Transmitter App 20140029957 - Sethumadhavan; Chandrasekhar ; et al.	2014-01-30
System, apparatus and method for communicating data via polarization multiplexing Grant 8,611,751 - Liu , et al. December 17, 2	2013-12-17
Digital phase conjugation for fiber-optic links Grant 8,594,515 - Liu , et al. November 26, 2	2013-11-26
Method And Apparatus For Space-Division Multiplexing Systems App 20130236175 - Sethumadhavan; Chandrasekhar ; et al.	2013-09-12
Coherent optical receiver for pilot-assisted data transmission Grant 8,515,286 - Liu , et al. August 20, 2	2013-08-20
Apparatus and method for generating frequency-locked optical comb sources Grant 8,483,575 - Liu , et al. July 9, 2	2013-07-09
Method And Apparatus For Transmitting High-level Qam Optical Signals With Binary Drive Signals App 20130170841 - LIU; Xiang ; et al.	2013-07-04
Communication Through Multiplexed One-dimensional Optical Signals App 20130136449 - Liu; Xiang ; et al.	2013-05-30
Digital Phase Conjugation For Fiber-optic Links App 20120224855 - Liu; Xiang ; et al.	2012-09-06
Apparatus And Method For Generating Interleaved Return-To-Zero (IRZ) Polarization-Division Multiplexed (PDM) Signals App 20120177372 - Liu; Xiang ; et al.	2012-07-12
Pilot-assisted Data Transmission In A Coherent Optical-communication System App 20120148255 - Liu; Xiang ; et al.	2012-06-14
Coherent Optical Receiver For Pilot-assisted Data Transmission App 20120148264 - Liu; Xiang ; et al.	2012-06-14
Digital coherent detection of multi-carrier optical signal Grant 8,180,227 - Liu , et al. May 15, 2	2012-05-15
Frequency-dependent I/q-signal Imbalance Correction For Coherent Optical Transceivers App 20120057863 - Winzer; Peter J. ; et al.	2012-03-08
System and method for receiving high spectral efficiency optical DPSK signals Grant 8,121,494 - Andrew , et al. February 21, 2	2012-02-21
Method And Apparatus For Raman Co-pumps App 20120002283 - Xie; Chongjin ; et al.	2012-01-05
Apparatus and Method For Generating Frequency-Locked Optical Comb Sources App 20110170873 - Liu; Xiang ; et al.	2011-07-14
Digital Coherent Detection of Multi-Carrier Optical Signal App 20110069975 - Liu; Xiang ; et al.	2011-03-24
System, Apparatus And Method For Communicating Data Via Polarization Multiplexing App 20100215374 - Liu; Xiang ; et al.	2010-08-26
System And Method For Receiving High Spectral Efficiency Optical Dpsk Signals App 20100046948 - Chraplyvy; Andrew Roman ; et al.	2010-02-25
Polarization-Multiplexed Multilevel Differential Phase Shift Keyed Signal Detector App 20090086215 - Liu; Xiang ; et al.	2009-04-02

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