Add-and-drop multiplexing

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H04J14/0201

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Parent Industries

HELECTRICITY H04Electric communication H04JMULTIPLEX COMMUNICATION H04J14/00Optical multiplex systems

Current Industry

H04J14/0201Add-and-drop multiplexing

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Dynamic cross-frequency path configuration for wavelength division...
- Patent number 12,212,903
- Issue date Jan 28, 2025
- AT&T Intellectual Property I, L.P.
- Mritunjay Pandey
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical add-drop network element
- Patent number 12,034,526
- Issue date Jul 9, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Alfredo Palagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Spectrum resource configuration method, network device, and system
- Patent number 11,990,986
- Issue date May 21, 2024
- Huawei Technologies Co., Ltd.
- Deng Pan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Clock recovery for digital subcarriers for optical networks
- Patent number 11,984,932
- Issue date May 14, 2024
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Clock recovery for digital subcarriers for optical networks
- Patent number 11,881,898
- Issue date Jan 23, 2024
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dynamic optical switching in a telecommunications network
- Patent number 11,863,918
- Issue date Jan 2, 2024
- Level 3 Communications, LLC
- Laurel Clark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dynamic optical switching in a telecommunications network
- Patent number 11,792,556
- Issue date Oct 17, 2023
- Level 3 Communications, LLC
- Laurel Clark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical branch insertion device and optical transmission system usi...
- Patent number 11,742,976
- Issue date Aug 29, 2023
- Nippon Telegraph and Telephone Corporation
- Masahiro Nakagawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical network management device, optical network system, optical...
- Patent number 11,671,196
- Issue date Jun 6, 2023
- NEC Corporation
- Shigeyuki Yanagimachi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for transmitting a signal in optical transport...
- Patent number 11,658,759
- Issue date May 23, 2023
- Huawei Technologies Co., Ltd.
- Shimin Zou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength division multiplexing module
- Patent number 11,658,763
- Issue date May 23, 2023
- CommScope Technologies LLC
- Kristofer Bolster
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical mitigation of inter-channel crosstalk for WDM channels
- Patent number 11,652,556
- Issue date May 16, 2023
- University of Southern California
- Fatemeh Alishahi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dynamic optical switching in a telecommunications network
- Patent number 11,509,979
- Issue date Nov 22, 2022
- Level 3 Communications, LLC
- Laurel Clark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Virtualized sections for sectional control of optical links
- Patent number 11,444,719
- Issue date Sep 13, 2022
- Ciena Corporation
- Choudhury A. Al Sayeed
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods and systems for monitoring optical networks
- Patent number 11,405,100
- Issue date Aug 2, 2022
- Comcast Cable Communications, LLC
- Venk Mutalik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Clock recovery for digital subcarriers for optical networks
- Patent number 11,343,000
- Issue date May 24, 2022
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier, optical transmission system, and optical cable f...
- Patent number 11,329,445
- Issue date May 10, 2022
- Nippon Telegraph and Telephone Corporation
- Takashi Kotanigawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical transceiver and method of automatically setting wavelength...
- Patent number 11,316,589
- Issue date Apr 26, 2022
- SOLID, INC.
- Bum Soo Park
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical communication devices based on concentric space-division mu...
- Patent number 11,316,587
- Issue date Apr 26, 2022
- CommScope Technologies LLC
- John Charles Chamberlain
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device and optical transmission method
- Patent number 11,309,968
- Issue date Apr 19, 2022
- Fujitsu Limited
- Anh Ha Ngo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Independently routable digital subcarriers for optical communicatio...
- Patent number 11,251,878
- Issue date Feb 15, 2022
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for optical power controls in optical networks
- Patent number 11,196,505
- Issue date Dec 7, 2021
- Infinera Corporation
- Omer F. Yilmaz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical switching apparatus and methods
- Patent number 11,172,275
- Issue date Nov 9, 2021
- Telefonaktiebolaget LM Ericsson (publ)
- Francesco Testa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transceiver and method of controlling optical powers of opt...
- Patent number 11,108,488
- Issue date Aug 31, 2021
- Telefonaktiebolaget LM Ericsson (publ)
- Wei-Ping Huang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Add/drop filter and optical add/drop multiplexer
- Patent number 11,095,386
- Issue date Aug 17, 2021
- Huawei Technologies Co., Ltd.
- Andrea Melloni
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network architecture for independently routable digital subcarriers...
- Patent number 11,095,373
- Issue date Aug 17, 2021
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dynamic optical switching in a telecommunications network
- Patent number 11,070,896
- Issue date Jul 20, 2021
- Level 3 Communications, LLC
- Laurel Clark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Virtualized sections for sectional control of optical links
- Patent number 11,057,146
- Issue date Jul 6, 2021
- Ciena Corporation
- Choudhury A. Al Sayeed
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Independently routable digital subcarriers with configurable spacin...
- Patent number 10,992,389
- Issue date Apr 27, 2021
- Infinera Corporation
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subchannel photonic routing, switching and protection with simplifi...
- Patent number 10,972,209
- Issue date Apr 6, 2021
- Snell Holdings, LLC
- Chris Wilhelm Barnard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
BASEBAND UNIT AND ACCESS NETWORK DEVICE
- Publication number 20240418933
- Publication date Dec 19, 2024
- Huawei Technologies Co., Ltd
- Yangbo Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CONFIGURABLE CONNECTOR FOR OPTICAL BUS
- Publication number 20240380489
- Publication date Nov 14, 2024
- Apple Inc.
- Stefan Meyer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH DIVISION MULTIPLEXING ARCHITECTURE BASED ON INTEGRATED B...
- Publication number 20240243832
- Publication date Jul 18, 2024
- Cisco Technology, Inc.
- Jean-Luc Joseph Tambasco
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL FREQUENCY SPECTRAL OPTIMIZATION IN DENSE WAVELENGTH DIVISIO...
- Publication number 20240235677
- Publication date Jul 11, 2024
- LEVEL 3 COMMUNICATIONS, LLC
- James E. Shearer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MONITIOR WINDOW IN ASE INJECTION SEED
- Publication number 20240235714
- Publication date Jul 11, 2024
- II-VI Delaware, Inc.
- Shaohua CAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DYNAMIC CROSS-FREQUENCY PATH CONFIGURATION FOR WAVELENGTH DIVISION...
- Publication number 20240187762
- Publication date Jun 6, 2024
- AT&T INTELLECTUAL PROPERTY I, L.P.
- Mritunjay Pandey
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and Apparatus for Correcting Optical Waveform Distortion and...
- Publication number 20240178919
- Publication date May 30, 2024
- NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
- Takashi INOUE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DYNAMIC OPTICAL SWITCHING IN A TELECOMMUNICATIONS NETWORK
- Publication number 20240163590
- Publication date May 16, 2024
- LEVEL 3 COMMUNICATIONS, LLC
- Laurel Clark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
NETWORK MANAGEMENT APPARATUS, COMMUNICATION APPARATUS, AND NETWORK...
- Publication number 20240154695
- Publication date May 9, 2024
- NEC Corporation
- Morihiko Ota
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL AMPLIFIER APPARATUS AND METHOD
- Publication number 20240154693
- Publication date May 9, 2024
- Telefonaktiebolaget LM Ericsson (publ)
- Roberto MAGRI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MONITIOR WINDOW IN ASE INJECTION SEED
- Publication number 20240137142
- Publication date Apr 25, 2024
- II-VI Delaware, Inc.
- Shaohua CAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH MULTIPLEXING OPTICAL TRANSMISSION SYSTEM AND WAVELENGTH...
- Publication number 20240113797
- Publication date Apr 4, 2024
- Lumentum Japan, Inc.
- Nobuhiko KIKUCHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Network Node for a Coherent Optical WDM Transmission Network
- Publication number 20240097793
- Publication date Mar 21, 2024
- Adtran Networks SE
- Henning Hinderthür
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Reduction of four-wave mixing crosstalk in optical links
- Publication number 20240089004
- Publication date Mar 14, 2024
- Marvell Asia Pte Ltd.
- Gary Mak
- G02 - OPTICS
Information Patent Application
DYNAMIC OPTICAL SWITCHING IN A TELECOMMUNICATIONS NETWORK
- Publication number 20240040287
- Publication date Feb 1, 2024
- LEVEL 3 COMMUNICATIONS, LLC
- Laurel Clark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical Add-Drop Network Element
- Publication number 20230344540
- Publication date Oct 26, 2023
- Telefonaktiebolaget LM Ericsson (publ)
- Alfredo Palagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION DEVICE, COMMUNICATION METHOD, COMMUNICATION SYSTEM AN...
- Publication number 20230318730
- Publication date Oct 5, 2023
- Nippon Telegraph and Telephone Corporation
- Takamitsu TOCHINO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SIGNAL PROCESSING APPARATUS AND METHOD
- Publication number 20230239067
- Publication date Jul 27, 2023
- Huawei Technologies Co., Ltd
- Guangcan MI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHODS AND SYSTEMS FOR MONITORING OPTICAL NETWORKS
- Publication number 20230224032
- Publication date Jul 13, 2023
- Comcast Cable Communications, LLC
- Venk Mutalik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INTEGRATED CONNECTOR-WAVELENGTH DIVISION MULTIPLEXING DEVICE AND FI...
- Publication number 20230108598
- Publication date Apr 6, 2023
- Corning Research & Development Corporation
- Scott William Ramsdell
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DYNAMIC OPTICAL SWITCHING IN A TELECOMMUNICATIONS NETWORK
- Publication number 20230084405
- Publication date Mar 16, 2023
- LEVEL 3 COMMUNICATIONS, LLC
- Laurel Clark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Subchannel Photonic Routing, Switching and Protection with Simplifi...
- Publication number 20220353005
- Publication date Nov 3, 2022
- Snell Holdings, LLC
- Chris Wilhelm Barnard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL NETWORK MANAGEMENT DEVICE, OPTICAL NETWORK SYSTEM, OPTICAL...
- Publication number 20220303039
- Publication date Sep 22, 2022
- NEC Corporation
- Shigeyuki Yanagimachi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL BRANCH INSERTION DEVICE AND OPTICAL TRANSMISSION SYSTEM USI...
- Publication number 20220149968
- Publication date May 12, 2022
- Nippon Telegraph and Telephone Corporation
- Masahiro NAKAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DYNAMIC OPTICAL SWITCHING IN A TELECOMMUNICATIONS NETWORK
- Publication number 20210345023
- Publication date Nov 4, 2021
- LEVEL 3 COMMUNICATIONS, LLC
- Laurel Clark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Virtualized sections for sectional control of optical links
- Publication number 20210328704
- Publication date Oct 21, 2021
- CIENA CORPORATION
- Choudhury A. AL SAYEED
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SUBCHANNEL PHOTONIC ROUTING, SWITCHING AND PROTECTION WITH SIMPLIFI...
- Publication number 20210281353
- Publication date Sep 9, 2021
- Snell Holdings, LLC
- Chris Wilhelm Barnard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL AMPLIFIER, OPTICAL TRANSMISSION SYSTEM, AND OPTICAL CABLE F...
- Publication number 20210257803
- Publication date Aug 19, 2021
- Nippon Telegraph and Telephone Corporation
- Takashi Kotanigawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL TRANSCEIVER AND METHOD OF AUTOMATICALLY SETTING WAVELENGTH...
- Publication number 20210184773
- Publication date Jun 17, 2021
- SOLiD, INC.
- Bum Soo Park
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Clock Recovery for Digital Subcarriers for Optical Networks
- Publication number 20210119709
- Publication date Apr 22, 2021
- Infinera Corp.
- Jeffrey T. Rahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Add-and-drop multiplexing

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Dynamic cross-frequency path configuration for wavelength division...

Optical add-drop network element

Spectrum resource configuration method, network device, and system

Clock recovery for digital subcarriers for optical networks

Clock recovery for digital subcarriers for optical networks

Dynamic optical switching in a telecommunications network

Dynamic optical switching in a telecommunications network

Optical branch insertion device and optical transmission system usi...

Optical network management device, optical network system, optical...

Method and apparatus for transmitting a signal in optical transport...

Wavelength division multiplexing module

Optical mitigation of inter-channel crosstalk for WDM channels

Dynamic optical switching in a telecommunications network

Virtualized sections for sectional control of optical links

Methods and systems for monitoring optical networks

Clock recovery for digital subcarriers for optical networks

Optical amplifier, optical transmission system, and optical cable f...

Optical transceiver and method of automatically setting wavelength...

Optical communication devices based on concentric space-division mu...

Optical transmission device and optical transmission method

Independently routable digital subcarriers for optical communicatio...

Method and apparatus for optical power controls in optical networks

Optical switching apparatus and methods

Optical transceiver and method of controlling optical powers of opt...

Add/drop filter and optical add/drop multiplexer

Network architecture for independently routable digital subcarriers...

Dynamic optical switching in a telecommunications network

Virtualized sections for sectional control of optical links

Independently routable digital subcarriers with configurable spacin...

Subchannel photonic routing, switching and protection with simplifi...

Patents Applicationslast 30 patents

BASEBAND UNIT AND ACCESS NETWORK DEVICE

CONFIGURABLE CONNECTOR FOR OPTICAL BUS

WAVELENGTH DIVISION MULTIPLEXING ARCHITECTURE BASED ON INTEGRATED B...

OPTICAL FREQUENCY SPECTRAL OPTIMIZATION IN DENSE WAVELENGTH DIVISIO...

MONITIOR WINDOW IN ASE INJECTION SEED

DYNAMIC CROSS-FREQUENCY PATH CONFIGURATION FOR WAVELENGTH DIVISION...

Method and Apparatus for Correcting Optical Waveform Distortion and...

DYNAMIC OPTICAL SWITCHING IN A TELECOMMUNICATIONS NETWORK

NETWORK MANAGEMENT APPARATUS, COMMUNICATION APPARATUS, AND NETWORK...

OPTICAL AMPLIFIER APPARATUS AND METHOD

MONITIOR WINDOW IN ASE INJECTION SEED

WAVELENGTH MULTIPLEXING OPTICAL TRANSMISSION SYSTEM AND WAVELENGTH...

Network Node for a Coherent Optical WDM Transmission Network

Reduction of four-wave mixing crosstalk in optical links

DYNAMIC OPTICAL SWITCHING IN A TELECOMMUNICATIONS NETWORK

Optical Add-Drop Network Element

COMMUNICATION DEVICE, COMMUNICATION METHOD, COMMUNICATION SYSTEM AN...

OPTICAL SIGNAL PROCESSING APPARATUS AND METHOD

METHODS AND SYSTEMS FOR MONITORING OPTICAL NETWORKS

INTEGRATED CONNECTOR-WAVELENGTH DIVISION MULTIPLEXING DEVICE AND FI...

DYNAMIC OPTICAL SWITCHING IN A TELECOMMUNICATIONS NETWORK

Subchannel Photonic Routing, Switching and Protection with Simplifi...

OPTICAL NETWORK MANAGEMENT DEVICE, OPTICAL NETWORK SYSTEM, OPTICAL...

OPTICAL BRANCH INSERTION DEVICE AND OPTICAL TRANSMISSION SYSTEM USI...

DYNAMIC OPTICAL SWITCHING IN A TELECOMMUNICATIONS NETWORK

Virtualized sections for sectional control of optical links

SUBCHANNEL PHOTONIC ROUTING, SWITCHING AND PROTECTION WITH SIMPLIFI...

OPTICAL AMPLIFIER, OPTICAL TRANSMISSION SYSTEM, AND OPTICAL CABLE F...

OPTICAL TRANSCEIVER AND METHOD OF AUTOMATICALLY SETTING WAVELENGTH...

Clock Recovery for Digital Subcarriers for Optical Networks