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Frequency-division multiplex systems
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Parent Industries
H
ELECTRICITY
H04
Electric communication
H04J
MULTIPLEX COMMUNICATION
Current Industry
H04J1/00
Frequency-division multiplex systems
Sub Industries
H04J1/02
Details
H04J1/04
Frequency-transposition arrangements
H04J1/045
Filters applied to frequency transposition
H04J1/05
using digital techniques
H04J1/06
Arrangements for supplying the carrier waves Arrangements for supplying synchronisation signals
H04J1/065
Synchronisation of carrier sources at the receiving station with the carrier source at the transmitting station
H04J1/08
Arrangements for combining channels
H04J1/085
Terminal station; Combined modulator and demodulator circuits
H04J1/10
Intermediate station arrangements
H04J1/12
Arrangements for reducing cross-talk between channels
H04J1/14
Arrangements providing for calling or supervisory signals
H04J1/16
Monitoring arrangements
H04J1/18
in which all the carriers are amplitude-modulated
H04J1/20
in which at least one carrier is angle-modulated
Industries
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Patents Grants
last 30 patents
Information
Patent Grant
Optical transmission device, optical transmission system, and optic...
Patent number
11,968,033
Issue date
Apr 23, 2024
Fujitsu Limited
Tomohiro Yamauchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Metastructured photonic devices for binary tree multiplexing or dem...
Patent number
11,968,034
Issue date
Apr 23, 2024
X Development LLC
Sunil Pai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cell information acquisition method and apparatus
Patent number
11,968,031
Issue date
Apr 23, 2024
ZTE Corporation
Jing Liu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength domain multiplexing with polarization multiplexing
Patent number
11,968,035
Issue date
Apr 23, 2024
Acacia Communications, Inc.
Long Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Differentiation of terrestrial and non-terrestrial cells
Patent number
11,968,635
Issue date
Apr 23, 2024
QUALCOMM Incorporated
Ayan Sengupta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telecommunications apparatus and methods
Patent number
11,968,751
Issue date
Apr 23, 2024
Sony Group Corporation
Shin Horng Wong
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Power optimization of point-to-point optical systems without visibi...
Patent number
11,967,986
Issue date
Apr 23, 2024
Ciena Corporation
Alex W. MacKay
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Data transmission method and apparatus in optical transport network
Patent number
11,967,992
Issue date
Apr 23, 2024
Huawei Technologies Co., Ltd.
Wei Su
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transceiver
Patent number
11,967,994
Issue date
Apr 23, 2024
Amazon Technologies, Inc.
Poorya Saghari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control plane triggered (CPT) optical protection switching (OPS)
Patent number
11,967,984
Issue date
Apr 23, 2024
Ciena Corporation
Sandeep Kumar Gupta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Initial access procedure and initial BWP configuration for bandwidt...
Patent number
11,968,032
Issue date
Apr 23, 2024
Samsung Electronics Co., Ltd.
Liang Hu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Device-enabled access control in a mesh network
Patent number
11,962,508
Issue date
Apr 16, 2024
UAB 360 IT
Mantas Jonytis
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for orthogonal pilot signaling
Patent number
11,962,438
Issue date
Apr 16, 2024
AT&T Intellectual Property I, L.P.
Ernest Tsui
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Reducing connection validation (CV) time in an optical node
Patent number
11,962,401
Issue date
Apr 16, 2024
Ciena Corporation
Jean-Luc Archambault
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
User equipment operating mode control
Patent number
11,963,148
Issue date
Apr 16, 2024
Huawei Technologies Co., Ltd.
Qinghai Zeng
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Using null resource elements for demodulation interference estimation
Patent number
11,963,212
Issue date
Apr 16, 2024
QUALCOMM Incorporated
Alexandros Manolakos
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fiber indexing systems
Patent number
11,960,135
Issue date
Apr 16, 2024
CommScope Technologies LLC
Erik J. Gronvall
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Differential power analysis for OTFS pilot interference detection
Patent number
11,962,445
Issue date
Apr 16, 2024
Volkswagen Aktiengesellschaft
Andreas Pfadler
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical switch and optical performance monitoring method based on o...
Patent number
11,962,352
Issue date
Apr 16, 2024
Huawei Technologies Co., Ltd.
Liang Wang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Laser noise reduction for laser interferometry
Patent number
11,960,042
Issue date
Apr 16, 2024
NEC Corporation
Ezra Ip
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Client device and network access node for transmitting and receivin...
Patent number
11,956,107
Issue date
Apr 9, 2024
Huawei Technologies Co., Ltd.
Branislav M. Popovic
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Precision synchronization using amplitude measurements in 5G and 6G
Patent number
11,956,746
Issue date
Apr 9, 2024
David E. Newman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal sending method, signal receiving method, and device
Patent number
11,956,178
Issue date
Apr 9, 2024
Huawei Technologies Co., Ltd.
Mingxin Gong
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for mitigating interference by displacing antenna...
Patent number
11,956,027
Issue date
Apr 9, 2024
ISCO International, LLC
Amr Abdelmonem
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical cross-connect
Patent number
11,953,732
Issue date
Apr 9, 2024
Huawei Technologies Co., Ltd.
Yunfei Yan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multiplexer, filter, and communication device
Patent number
11,956,069
Issue date
Apr 9, 2024
Murata Manufacturing Co., Ltd.
Hirotsugu Mori
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Optical transmission system
Patent number
11,956,070
Issue date
Apr 9, 2024
Nippon Telegraph and Telephone Corporation
Taiji Sakamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for transmitting and receiving an electromagnetic...
Patent number
11,956,014
Issue date
Apr 9, 2024
Universita Degli Studi di Milano
Marco Potenza
G02 - OPTICS
Information
Patent Grant
Uplink multi-user multi-input multi-output establishment method and...
Patent number
11,956,661
Issue date
Apr 9, 2024
Huawei Technologies Co., Ltd.
Yi Luo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Beamforming in wireless communications
Patent number
11,950,145
Issue date
Apr 2, 2024
Comcast Cable Communications, LLC
Esmael Hejazi Dinan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
APPARATUS AND METHOD FOR PERFORMING BEAM SWEEPING USING RIS PATTERN...
Publication number
20240129870
Publication date
Apr 18, 2024
Samsung Electronics Co., Ltd.
Donggu KIM
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication Method and Information Processing Apparatus
Publication number
20240129907
Publication date
Apr 18, 2024
Huawei Technologies Co., Ltd
Xingqing Cheng
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND SYSTEM FOR OPTIMIZING OPTICAL POWER MANAGEMENT OVER AN O...
Publication number
20240129055
Publication date
Apr 18, 2024
Huawei Technologies Co., Ltd
Yuren YOU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DYNAMIC NUMEROLOGY BASED ON SERVICES
Publication number
20240129056
Publication date
Apr 18, 2024
T-Mobile USA, Inc.
Shuqing Xing
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Cell Timing in a Wireless Device and Base Station
Publication number
20240129857
Publication date
Apr 18, 2024
Comcast Cable Communications, LLC
Esmael Hejazi Dinan
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
METHOD AND APPARATUS FOR PERFORMING SPREAD SPECTRUM OPTICAL SPECTRO...
Publication number
20240129054
Publication date
Apr 18, 2024
CIENA CORPORATION
Brandon Taylor Buscaino
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR INCREASING PERFORMANCE OF COMMUNICATION LI...
Publication number
20240121723
Publication date
Apr 11, 2024
ISCO International, LLC
Amr Abdelmonem
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND DEVICE FOR MODULATING WITH ZADOFF-CHU SEQUENCES
Publication number
20240121021
Publication date
Apr 11, 2024
TERNWAVES
Jean CANONICI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM, WAVELENGTH CONVERTER, AND OPTICAL TRAN...
Publication number
20240121022
Publication date
Apr 11, 2024
Fujitsu Limited
Hiroyuki IRIE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHODS, SYSTEMS AND APPARATUSES FOR NETWORK ASSISTED INTERFERENCE...
Publication number
20240121652
Publication date
Apr 11, 2024
INTERDIGITAL PATENT HOLDINGS, INC.
Paul MARINIER
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TECHNIQUES FOR SRS WITH TD-OCC TRANSMISSION IMPACTED BY DROPPING OF...
Publication number
20240121801
Publication date
Apr 11, 2024
QUALCOMM Incorporated
Mostafa KHOSHNEVISAN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DEMODULATION REFERENCE SIGNAL PORT MAPPING AND INDICATION SCHEMES
Publication number
20240121056
Publication date
Apr 11, 2024
ZTE CORPORATION
Meng MEI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RADIO-FREQUENCY MULTIPLEXING SYSTEMS, DEVICES AND METHODS
Publication number
20240120952
Publication date
Apr 11, 2024
Skyworks Solutions, Inc.
Joel Richard KING
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FULL DUPLEX USING OAM
Publication number
20240120655
Publication date
Apr 11, 2024
NXGEN PARTNERS IP, LLC
SOLYMAN ASHRAFI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SILICON OPTICAL CHIP WITH INTEGRATED ANTENNA ARRAY
Publication number
20240120998
Publication date
Apr 11, 2024
Global Technology Inc.
Sheng SU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
END-TO-END SECURE COMMUNICATIONS FOR PRIVILEGED 5G NETWORK TRAFFIC
Publication number
20240114382
Publication date
Apr 4, 2024
Microsoft Technology Licensing, LLC
Paramvir BAHL
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL MULTIPLEXER SUPPORTING MULTIPLE CHANNEL SIZES
Publication number
20240113800
Publication date
Apr 4, 2024
Nokia Solutions and Networks Oy
Randy Eisenach
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND SYSTEM FOR MITIGATING INTERFERENCE BY ROTATING ANTENNA S...
Publication number
20240113745
Publication date
Apr 4, 2024
ISCO International, LLC
Amr Abdelmonem
H01 - BASIC ELECTRIC ELEMENTS
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
PHOTONIC COMMUNICATION PLATFORM
Publication number
20240111094
Publication date
Apr 4, 2024
Lightmatter, Inc
Nicholas C. Harris
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SERVICE OPTICAL SIGNAL TRANSMISSION METHOD, NETWORK DEVICE, AND OPT...
Publication number
20240113799
Publication date
Apr 4, 2024
Huawei Technologies Co., Ltd
Chen LIU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND DEVICE FOR WIRELESS COMMUNICATION
Publication number
20240114470
Publication date
Apr 4, 2024
SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
Yu CHEN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Scalable add/drop colorless, directionless, and contentionless opti...
Publication number
20240113798
Publication date
Apr 4, 2024
CIENA CORPORATION
Paul CHEDORE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEMS AND METHODS FOR COUPLING OPTICAL NETWORKS
Publication number
20240106559
Publication date
Mar 28, 2024
IP Infusion, Inc.
Chao Xiang Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WAVELENGTH CONVERTER AND OPTICAL TRANSMISSION SYSTEM
Publication number
20240103338
Publication date
Mar 28, 2024
Fujitsu Limited
Tomoyuki KATO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PHOTONIC COMMUNICATION PLATFORM
Publication number
20240103219
Publication date
Mar 28, 2024
Lightmatter, Inc
Nicholas C. Harris
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SYNCHRONIZATION SIGNAL BLOCK PATTERN ENHANCEMENT
Publication number
20240107439
Publication date
Mar 28, 2024
Apple Inc.
Yihong Qi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WAVELENGTH CONVERSION DEVICE AND OPTICAL TRANSMISSION SYSTEM
Publication number
20240106560
Publication date
Mar 28, 2024
Fujitsu Limited
Hidenobu MURANAKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM, OPTICAL TRANSMISSION DEVICE, AND OPTIC...
Publication number
20240106557
Publication date
Mar 28, 2024
Fujitsu Limited
Akihiro MUKAI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECONFIGURABLE OPTICAL ADD AND DROP MULTIPLEXER SYSTEM WITH INTERGR...
Publication number
20240106558
Publication date
Mar 28, 2024
Molex, LLC
Minchun Li
H04 - ELECTRIC COMMUNICATION TECHNIQUE