using pilot tones

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CPC
H04J14/0276

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Parent Industries

HELECTRICITY H04Electric communication H04JMULTIPLEX COMMUNICATION H04J14/00Optical multiplex systems

Current Industry

H04J14/0276using pilot tones

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Wavelength tuning method and related device
- Patent number 11,916,599
- Issue date Feb 27, 2024
- Huawei Technologies Co., Ltd.
- Enbo Zhou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cross-polarized control channels for loading fiber optic transport...
- Patent number 11,463,189
- Issue date Oct 4, 2022
- Ciena Corporation
- David Boertjes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Monitoring performance of optical network using low-power gaps and...
- Patent number 10,938,484
- Issue date Mar 2, 2021
- Huawei Technologies Co., Ltd.
- Zhiping Jiang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission apparatus, optical transmission system, and op...
- Patent number 10,797,799
- Issue date Oct 6, 2020
- Fujitsu Limited
- Goji Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System for loading fiber optic transport systems for channel additi...
- Patent number 10,784,981
- Issue date Sep 22, 2020
- Ciena Corporation
- David Boertjes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Low cost intensity-modulated direct-detection (IMDD) optical transm...
- Patent number 10,574,382
- Issue date Feb 25, 2020
- Huawei Technologies Co., Ltd.
- Zhiping Jiang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and central network device for establishing an embedded opti...
- Patent number 10,367,597
- Issue date Jul 30, 2019
- ADVA Optical Networking SE
- Stephan Pachnicke
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Spur removal in pilot-tone OPM
- Patent number 10,348,438
- Issue date Jul 9, 2019
- Huawei Technologies Co., Ltd.
- Minggang Si
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Generating a pilot tone for an optical telecommunications system
- Patent number 10,298,323
- Issue date May 21, 2019
- Huawei Technologies Co., Ltd.
- Zhiping Jiang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal-processing apparatus, receiving apparatus, and optic...
- Patent number 10,291,328
- Issue date May 14, 2019
- Fujitsu Limited
- Shigeki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Generating a pilot tone for an optical telecommunications system
- Patent number 10,263,699
- Issue date Apr 16, 2019
- Huawei Technologies Co., Ltd.
- Zhiping Jiang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cross-polarized control channels for loading fiber optic transport...
- Patent number 10,153,860
- Issue date Dec 11, 2018
- Ciena Corporation
- David Boertjes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and communication control device for establishing a communic...
- Patent number 9,813,184
- Issue date Nov 7, 2017
- ADVA Optical Networking SE
- Mirko Lawin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and device for creating a control channel in an optical tran...
- Patent number 9,806,843
- Issue date Oct 31, 2017
- ADVA Optical Networking SE
- Michael Eiselt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transient and switching event stabilization of fiber optic transpor...
- Patent number 9,755,776
- Issue date Sep 5, 2017
- Ciena Corporation
- David Boertjes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for removing a pilot tone from an optical signal
- Patent number 9,705,628
- Issue date Jul 11, 2017
- Huawei Technologies Co., Ltd.
- Zhiping Jiang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal-processing apparatus, receiving apparatus, and optic...
- Patent number 9,692,520
- Issue date Jun 27, 2017
- Fujitsu Limited
- Shigeki Watanabe
- G02 - OPTICS
Information Patent Grant
Optical transmission device, node device, optical transmission meth...
- Patent number 9,559,771
- Issue date Jan 31, 2017
- Fujitsu Limited
- Shoichiro Oda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal detection circuit and optical transmission equipment
- Patent number 9,503,211
- Issue date Nov 22, 2016
- Fujitsu Limited
- Kazuo Hironishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for removing a pilot tone from an optical signal
- Patent number 9,473,263
- Issue date Oct 18, 2016
- Huawei Technologies Co., Ltd.
- Zhiping Jiang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for selecting wavelength by wavelength tunable...
- Patent number 9,420,357
- Issue date Aug 16, 2016
- Electronics and Telecommunications Research Institute
- Jong Sool Jeong
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for performing an automatic power adjustment f...
- Patent number 9,397,749
- Issue date Jul 19, 2016
- ADVA Optical Networking SE
- J. David Portier
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for tuning a tunable optical transmitter in an optical WDM t...
- Patent number 9,344,213
- Issue date May 17, 2016
- ADVA Optical Networking SE
- Michael Eiselt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal detection circuit and optical transmission equipment
- Patent number 9,281,913
- Issue date Mar 8, 2016
- Fujitsu Limited
- Kazuo Hironishi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for operating an optical transmission system
- Patent number 9,231,724
- Issue date Jan 5, 2016
- ADVA Optical Networking SE
- Stephan Pachnicke
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of operating a primary optical node and a secondary optical...
- Patent number 9,197,349
- Issue date Nov 24, 2015
- Adva Optical Networking SE
- Klaus Grobe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system, method of adjusting optical transmissi...
- Patent number 9,143,260
- Issue date Sep 22, 2015
- Fujitsu Limited
- Tomofumi Oyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for monitoring performance of wavelength path, an...
- Patent number 9,143,263
- Issue date Sep 22, 2015
- Huawei Technologies Co., Ltd.
- Jianrui Han
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication link employing coherent detection and out of...
- Patent number 9,100,139
- Issue date Aug 4, 2015
- Juniper Networks, Inc.
- Theodore J. Schmidt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Superimposed signal detection circuit and optical node equipment
- Patent number 9,071,378
- Issue date Jun 30, 2015
- Fujitsu Limited
- Takeshi Hoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
LINE CONCENTRATOR OPTICAL COMMUNICATION APPARATUS AND CONTROL METHOD
- Publication number 20240356668
- Publication date Oct 24, 2024
- Nippon Telegraph and Telephone Corporation
- Sang-Yuep KIM
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR DOWNLINK MULTI-USER WITH DFT-S-OFDM WAVEFORM
- Publication number 20240250769
- Publication date Jul 25, 2024
- Rakuten Symphony Singapore Pte. Ltd.
- Erdem BALA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System for loading fiber optic transport systems for channel additi...
- Publication number 20200228227
- Publication date Jul 16, 2020
- CIENA CORPORATION
- David BOERTJES
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MONITORING PERFORMANCE OF OPTICAL NETWORK USING LOW-POWER GAPS AND...
- Publication number 20200112376
- Publication date Apr 9, 2020
- Huawei Technologies Co., Ltd
- Zhiping JIANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Low Cost Intensity-Modulated Direct-Detection (IMDD) Optical Transm...
- Publication number 20190109667
- Publication date Apr 11, 2019
- Huawei Technologies Co., Ltd
- ZHIPING JIANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Cross-polarized control channels for loading fiber optic transport...
- Publication number 20190074924
- Publication date Mar 7, 2019
- CIENA CORPORATION
- David BOERTJES
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SPUR REMOVAL IN PILOT-TONE OPM
- Publication number 20190074923
- Publication date Mar 7, 2019
- Huawei Technologies Co., Ltd
- Minggang Si
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CROSS-POLARIZED CONTROL CHANNELS FOR LOADING FIBER OPTIC TRANSPORT...
- Publication number 20170359141
- Publication date Dec 14, 2017
- CIENA CORPORATION
- David BOERTJES
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SIGNAL-PROCESSING APPARATUS, RECEIVING APPARATUS, AND OPTIC...
- Publication number 20170264370
- Publication date Sep 14, 2017
- Fujitsu Limited
- Shigeki Watanabe
- G02 - OPTICS
Information Patent Application
METHOD AND SYSTEM FOR REMOVING A PILOT TONE FROM AN OPTICAL SIGNAL
- Publication number 20160380716
- Publication date Dec 29, 2016
- Huawei Technologies Co., Ltd
- ZHIPING JIANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND SYSTEM FOR REMOVING A PILOT TONE FROM AN OPTICAL SIGNAL
- Publication number 20160211938
- Publication date Jul 21, 2016
- Zhiping JIANG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INTERFEROMETER CONFIGURED FOR SIGNAL PROCESSING IN AN INTERFERENCE...
- Publication number 20150147063
- Publication date May 28, 2015
- Alcatel Lucent
- Peter J. Winzer
- G01 - MEASURING TESTING
Information Patent Application
Optical Channel Monitor With High Resolution Capability
- Publication number 20140376909
- Publication date Dec 25, 2014
- FINISAR CORPORATION
- Steven James Frisken
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH MULTIPLEXING OPTICAL COMMUNICATION DEVICE
- Publication number 20140334812
- Publication date Nov 13, 2014
- Mitsubishi Electric Corporation
- Yuita Noguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for Tuning a Tunable Optical Transmitter in an Optical WDM T...
- Publication number 20140247840
- Publication date Sep 4, 2014
- Michael Eiselt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SIGNAL DETECTION CIRCUIT AND OPTICAL TRANSMISSION EQUIPMENT
- Publication number 20140219662
- Publication date Aug 7, 2014
- Fujitsu Limited
- Kazuo HIRONISHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL LINE TERMINAL FOR MONITORING AND CONTROLLING UPSTREAM/DOWNS...
- Publication number 20140161445
- Publication date Jun 12, 2014
- ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Jong Sool JEONG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE, NODE DEVICE, OPTICAL TRANSMISSION METH...
- Publication number 20140140692
- Publication date May 22, 2014
- Fujitsu Limited
- Shoichiro ODA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TIME AND WAVELENGTH-SHIFTED DYNAMIC BIDIRECTIONAL SYSTEM
- Publication number 20140140701
- Publication date May 22, 2014
- DORICA PROPERTIES NY LLC
- Mohammad A. Mazed
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION SYSTEM, METHOD OF ADJUSTING OPTICAL TRANSMISSI...
- Publication number 20140099110
- Publication date Apr 10, 2014
- Fujitsu Limited
- Tomofumi Oyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND SYSTEM FOR MONITORING PERFORMANCE OF WAVELENGTH PATH, AN...
- Publication number 20140023361
- Publication date Jan 23, 2014
- Huawei Technologies Co., Ltd
- Jianrui Han
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR PERFORMING AN AUTOMATIC POWER ADJUSTMENT F...
- Publication number 20140003809
- Publication date Jan 2, 2014
- ADVA Optical Networking SE
- David Portier
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method of Operating a Primary Optical Node and a Secondary Optical...
- Publication number 20130336655
- Publication date Dec 19, 2013
- ADVA Optical Networking SE
- Klaus Grobe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL COMMUNICATION LINK EMPLOYING COHERENT DETECTION AND OUT OF...
- Publication number 20130286847
- Publication date Oct 31, 2013
- Juniper Networks, Inc.
- Theodore J. SCHMIDT
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR OPERATING AN OPTICAL TRANSMISSION SYSTEM
- Publication number 20130251364
- Publication date Sep 26, 2013
- ADVA Optical Networking SE
- Stephan PACHNICKE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL LINE TERMINAL FOR BIDIRECTIONAL WAVELENGTH-DIVISION-MULTIPL...
- Publication number 20130209094
- Publication date Aug 15, 2013
- ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Jong Sool JEONG
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL PATH ESTABLISHING METHOD AND OPTICAL NODE APPARATUS
- Publication number 20130209093
- Publication date Aug 15, 2013
- Fujitsu Limited
- Takahito TANIMURA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL COMMUNICATION SYSTEM
- Publication number 20130129356
- Publication date May 23, 2013
- Mitsubishi Electric Corporation
- Toshiyuki Tokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Shared Wavelength Locker With A Periodic Transmission Filter In A N...
- Publication number 20130084073
- Publication date Apr 4, 2013
- FutureWei Technologies, Inc.
- Xiao A. Shen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INTERFEROMETER CONFIGURED FOR SIGNAL PROCESSING IN AN INTERFERENCE...
- Publication number 20130070254
- Publication date Mar 21, 2013
- Peter Winzer
- G01 - MEASURING TESTING

using pilot tones

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Wavelength tuning method and related device

Cross-polarized control channels for loading fiber optic transport...

Monitoring performance of optical network using low-power gaps and...

Optical transmission apparatus, optical transmission system, and op...

System for loading fiber optic transport systems for channel additi...

Low cost intensity-modulated direct-detection (IMDD) optical transm...

Method and central network device for establishing an embedded opti...

Spur removal in pilot-tone OPM

Generating a pilot tone for an optical telecommunications system

Optical signal-processing apparatus, receiving apparatus, and optic...

Generating a pilot tone for an optical telecommunications system

Cross-polarized control channels for loading fiber optic transport...

Method and communication control device for establishing a communic...

Method and device for creating a control channel in an optical tran...

Transient and switching event stabilization of fiber optic transpor...

Method and system for removing a pilot tone from an optical signal

Optical signal-processing apparatus, receiving apparatus, and optic...

Optical transmission device, node device, optical transmission meth...

Signal detection circuit and optical transmission equipment

Method and system for removing a pilot tone from an optical signal

Method and apparatus for selecting wavelength by wavelength tunable...

Method and apparatus for performing an automatic power adjustment f...

Method for tuning a tunable optical transmitter in an optical WDM t...

Signal detection circuit and optical transmission equipment

Method for operating an optical transmission system

Method of operating a primary optical node and a secondary optical...

Optical transmission system, method of adjusting optical transmissi...

Method and system for monitoring performance of wavelength path, an...

Optical communication link employing coherent detection and out of...

Superimposed signal detection circuit and optical node equipment

Patents Applicationslast 30 patents

LINE CONCENTRATOR OPTICAL COMMUNICATION APPARATUS AND CONTROL METHOD

METHOD AND APPARATUS FOR DOWNLINK MULTI-USER WITH DFT-S-OFDM WAVEFORM

System for loading fiber optic transport systems for channel additi...

MONITORING PERFORMANCE OF OPTICAL NETWORK USING LOW-POWER GAPS AND...

Low Cost Intensity-Modulated Direct-Detection (IMDD) Optical Transm...

Cross-polarized control channels for loading fiber optic transport...

SPUR REMOVAL IN PILOT-TONE OPM

CROSS-POLARIZED CONTROL CHANNELS FOR LOADING FIBER OPTIC TRANSPORT...

OPTICAL SIGNAL-PROCESSING APPARATUS, RECEIVING APPARATUS, AND OPTIC...

METHOD AND SYSTEM FOR REMOVING A PILOT TONE FROM AN OPTICAL SIGNAL

METHOD AND SYSTEM FOR REMOVING A PILOT TONE FROM AN OPTICAL SIGNAL

INTERFEROMETER CONFIGURED FOR SIGNAL PROCESSING IN AN INTERFERENCE...

Optical Channel Monitor With High Resolution Capability

WAVELENGTH MULTIPLEXING OPTICAL COMMUNICATION DEVICE

Method for Tuning a Tunable Optical Transmitter in an Optical WDM T...

SIGNAL DETECTION CIRCUIT AND OPTICAL TRANSMISSION EQUIPMENT

OPTICAL LINE TERMINAL FOR MONITORING AND CONTROLLING UPSTREAM/DOWNS...

OPTICAL TRANSMISSION DEVICE, NODE DEVICE, OPTICAL TRANSMISSION METH...

TIME AND WAVELENGTH-SHIFTED DYNAMIC BIDIRECTIONAL SYSTEM

OPTICAL TRANSMISSION SYSTEM, METHOD OF ADJUSTING OPTICAL TRANSMISSI...

METHOD AND SYSTEM FOR MONITORING PERFORMANCE OF WAVELENGTH PATH, AN...

METHOD AND APPARATUS FOR PERFORMING AN AUTOMATIC POWER ADJUSTMENT F...

Method of Operating a Primary Optical Node and a Secondary Optical...

OPTICAL COMMUNICATION LINK EMPLOYING COHERENT DETECTION AND OUT OF...

METHOD FOR OPERATING AN OPTICAL TRANSMISSION SYSTEM

OPTICAL LINE TERMINAL FOR BIDIRECTIONAL WAVELENGTH-DIVISION-MULTIPL...

OPTICAL PATH ESTABLISHING METHOD AND OPTICAL NODE APPARATUS

OPTICAL COMMUNICATION SYSTEM

Shared Wavelength Locker With A Periodic Transmission Filter In A N...

INTERFEROMETER CONFIGURED FOR SIGNAL PROCESSING IN AN INTERFERENCE...