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Time-division multiplex systems
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Parent Industries
H
ELECTRICITY
H04
Electric communication
H04J
MULTIPLEX COMMUNICATION
Current Industry
H04J3/00
Time-division multiplex systems
Sub Industries
H04J3/02
Details
H04J3/025
Filter arrangements
H04J3/04
Distributors combined with modulators or demodulators
H04J3/042
Distributors with electron or gas discharge tubes
H04J3/045
Distributors with CRT
H04J3/047
Distributors with transistors or integrated circuits
H04J3/06
Synchronising arrangements
H04J3/0602
Systems characterised by the synchronising information used
H04J3/0605
Special codes used as synchronising signal
H04J3/0608
Detectors therefor
H04J3/0611
PN codes
H04J3/0614
the synchronising signal being characterised by the amplitude, duration or polarity
H04J3/0617
the synchronising signal being characterised by the frequency or phase
H04J3/062
Synchronisation of signals having the same nominal but fluctuating bit rates
H04J3/0623
Synchronous multiplexing systems
H04J3/0626
plesiochronous multiplexing systems
H04J3/0629
in a network
H04J3/0632
Synchronisation of packets and cells
H04J3/0635
Clock or time synchronisation in a network
H04J3/0638
Clock or time synchronisation among nodes; Internode synchronisation
H04J3/0641
Change of the master or reference
H04J3/0644
External master-clock
H04J3/0647
Synchronisation among TDM nodes
H04J3/065
using timestamps
H04J3/0652
Synchronisation among time division multiple access [TDMA] nodes
H04J3/0655
using timestamps
H04J3/0658
Clock or time synchronisation among packet nodes
H04J3/0661
using timestamps
H04J3/0664
unidirectional timestamps
H04J3/0667
Bidirectional timestamps
H04J3/067
Details of the timestamp structure
H04J3/0673
using intermediate nodes
H04J3/0676
Mutual
H04J3/0679
by determining clock distribution path in a network
H04J3/0682
by delay compensation
H04J3/0685
Clock or time synchronisation in a node; Intranode synchronisation
H04J3/0688
Change of the master or reference
H04J3/0691
Synchronisation in a TDM node
H04J3/0694
Synchronisation in a TDMA node
H04J3/0697
Synchronisation in a packet node
H04J3/07
using pulse stuffing for systems with different or fluctuating information rates or bit rates
H04J3/073
Bit stuffing
H04J3/076
Bit and byte stuffing
H04J3/08
Intermediate station arrangements
H04J3/085
for ring networks
H04J3/10
Arrangements for reducing cross-talk between channels
H04J3/12
Arrangements providing for calling or supervisory signals
H04J3/125
One of the channel pulses or the synchronisation pulse is also used for transmitting monitoring or supervisory signals
H04J3/14
Monitoring arrangements
H04J3/16
in which the time allocation to individual channels within a transmission cycle is variable
H04J3/1605
Fixed allocated frame structures
H04J3/1611
Synchronous digital hierarchy [SDH] or SONET
H04J3/1617
carrying packets or ATM cells
H04J3/1623
Plesiochronous digital hierarchy [PDH]
H04J3/1629
Format building algorithm
H04J3/1635
Format conversion
H04J3/1641
Hierarchical systems
H04J3/1647
Subrate or multislot multiplexing
H04J3/1652
Optical Transport Network [OTN]
H04J3/1658
carrying packets or ATM cells
H04J3/1664
carrying hybrid payloads
H04J3/167
interaction with SDH/SONET
H04J3/1676
Time-division multiplex with pulse-position, pulse-interval, or pulse-width modulation
H04J3/1682
Allocation of channels according to the instantaneous demands of the users
H04J3/1688
the demands of the users being taken into account after redundancy removal
H04J3/1694
Allocation of channels in TDM/TDMA networks
H04J3/17
in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive
H04J3/172
Digital speech interpolation
H04J3/175
Speech activity or inactivity detectors
H04J3/177
Freeze-out systems
H04J3/18
using frequency compression and subsequent expansion of the individual signals
H04J3/20
using resonant transfer
H04J3/22
in which the sources have different rates or codes
H04J3/24
in which the allocation is indicated by an address the different channels being transmitted sequentially
H04J3/242
the frames being of variable length
H04J3/245
in which the allocation protocols between more than two stations share the same transmission medium
H04J3/247
ATM or packet multiplexing
H04J3/26
in which the information and the address are simultaneously transmitted
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for synchronisation and data transmission
Patent number
12,341,344
Issue date
Jun 24, 2025
Oxford University Innovation Limited
Damien Frost
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Systems for timestamping events on edge devices
Patent number
12,339,377
Issue date
Jun 24, 2025
HOPTROFF LONDON LIMITED
Richard Hoptroff
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Systems and methods for testing time distribution
Patent number
12,341,603
Issue date
Jun 24, 2025
HOPTROFF LONDON LIMITED
Richard Hoptroff
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Methods, devices, and systems for timing and bandwidth management o...
Patent number
12,341,557
Issue date
Jun 24, 2025
Lumeova, Inc.
William Joseph Croughwell
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and system for performing time-synchronization between units...
Patent number
12,335,360
Issue date
Jun 17, 2025
Bayerische Motoren Werke Aktiengesellschaft
Mohamed-Saad Abdelhameed
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Systems and methods for large phase correction in R-PHY network arc...
Patent number
12,335,030
Issue date
Jun 17, 2025
ARRIS ENTERPRISES LLC
Yair Neugeboren
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Shared communication channel that interleaves 1 PPS signals and mes...
Patent number
12,335,031
Issue date
Jun 17, 2025
Skyworks Solutions, Inc.
Robert P. Coulter
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Systems and methods for data frame and data symbol synchronization...
Patent number
12,335,362
Issue date
Jun 17, 2025
Cable Television Laboratories, Inc.
Junwen Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for avoiding function disablements for intelligent electroni...
Patent number
12,328,183
Issue date
Jun 10, 2025
Siemens Aktiengesellschaft
Andrej Görbing
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-source signal synchronization system and method
Patent number
12,328,184
Issue date
Jun 10, 2025
SHENZHEN NOVOCARE MEDICAL TECHNOLOGY CO., LTD
Jiabao Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for wireless communication and network device
Patent number
12,323,933
Issue date
Jun 3, 2025
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
Zhe Fu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency offset estimation method for average consistency clock sy...
Patent number
12,323,937
Issue date
Jun 3, 2025
Chongqing University of Posts and Telecommunications
Heng Wang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
In-band signaling for ingress PTP packets at a master entity
Patent number
12,323,235
Issue date
Jun 3, 2025
COMMSCOPE TECHNOLOGIES LLC
Santosh Ajjannavar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cross-network time synchronization method for industrial wireless n...
Patent number
12,323,234
Issue date
Jun 3, 2025
Chongqing University of Posts and Telecommunications
Min Wei
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Sequence number synchronization method and apparatus
Patent number
12,323,335
Issue date
Jun 3, 2025
Huawei Technologies Co., Ltd.
Xingwang Zhou
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Synchronizing a real-time clock and a network clock
Patent number
12,316,442
Issue date
May 27, 2025
Intel Corporation
Kishore Kasichainula
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for transmitting synchronization information i...
Patent number
12,316,443
Issue date
May 27, 2025
Samsung Electronics Co., Ltd.
Sangjun Moon
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Autonomous parameter-varying communication synchronization method a...
Patent number
12,316,444
Issue date
May 27, 2025
Nanjing University Of Posts And Telecommunications
Yulong Zou
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time synchronization method and apparatus
Patent number
12,317,204
Issue date
May 27, 2025
BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Wei Hong
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Companion metadata for precision time protocol (PTP) hardware clock
Patent number
12,308,952
Issue date
May 20, 2025
Mellanox Technologies, Ltd.
Thomas Kernen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for preventing latency variation in timestamps...
Patent number
12,309,250
Issue date
May 20, 2025
Marvell Israel (M.I.S.L) Ltd.
Nitzan Dror
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication apparatus, communication method, and storage medium
Patent number
12,309,724
Issue date
May 20, 2025
Canon Kabushiki Kaisha
Kazuhiko Morimura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time synchronization method using 5G reference time distribution an...
Patent number
12,308,951
Issue date
May 20, 2025
Electronics and Telecommunications Research Institute
Yoo Hwa Kang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication apparatus and communication method
Patent number
12,308,909
Issue date
May 20, 2025
Panasonic Intellectual Property Corporation of America
Yutaka Murakami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for identifying and diagnosing failures in pairwise time syn...
Patent number
12,308,950
Issue date
May 20, 2025
ZaiNar, Inc.
Philip A. Kratz
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for determining transmission mode and apparatus
Patent number
12,308,946
Issue date
May 20, 2025
Huawei Technologies Co., Ltd.
Mingzhe Wang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Link profiling for asymmetric delay compensation
Patent number
12,308,949
Issue date
May 20, 2025
NET INSIGHT AB
Michael Andersson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transporting client timing information across a network
Patent number
12,301,340
Issue date
May 13, 2025
Hewlett Packard Enterprise Development LP
Kamatchi S. Gopalakrishnan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Configuration method and apparatus, binding method and apparatus, a...
Patent number
12,302,045
Issue date
May 13, 2025
ZTE Corporation
Qilei Wang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time synchronization method, electronic device, and storage medium
Patent number
12,301,338
Issue date
May 13, 2025
Beijing CHJ Information Technology Co., LTD.
Shaodong Yang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
CIRCUITRY AND METHOD FOR QUANTIZATION ERROR CORRECTION FOR TIME SYN...
Publication number
20250208647
Publication date
Jun 26, 2025
ADVANCED MICRO DEVICES, INC.
Ming So
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
TIME SYNCHRONIZATION WITHIN AN AIRCRAFT SYSTEM
Publication number
20250211349
Publication date
Jun 26, 2025
GE Aviation Systems Limited
Andrew Vogeli
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and Method to Dynamically Maintain Mutually Traceable Clocks...
Publication number
20250211351
Publication date
Jun 26, 2025
CISCO TECHNOLOGY INC.
Manik Singhal
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and Method to Dynamically Monitor Clock Offsets in a Locked...
Publication number
20250211352
Publication date
Jun 26, 2025
CISCO TECHNOLOGY INC.
Manik Singhal
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and Method to Analyze Clock Offsets When Clocks are Unable t...
Publication number
20250211353
Publication date
Jun 26, 2025
CISCO TECHNOLOGY INC.
Manik Singhal
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CLOCK SYNCHRONIZATION ACROSS GLOBAL AND LOCAL REFERENCES
Publication number
20250211354
Publication date
Jun 26, 2025
Clockwork Systems, Inc.
Yilong Geng
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DISTRIBUTED RADIO TRANSPARENT CLOCK OVER A WIRELESS NETWORK
Publication number
20250211512
Publication date
Jun 26, 2025
Aviat U.S., Inc.
Janez Mihelic
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RELAY DEVICE, COMMUNICATION NETWORK SYSTEM, RELAY METHOD, AND STORA...
Publication number
20250211319
Publication date
Jun 26, 2025
DENSO CORPORATION
Takeshi TAJIMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD OF STREAMING SYNCHRONIZED AUDIO OVER A NETWORK
Publication number
20250211813
Publication date
Jun 26, 2025
Nexus Audio Visual Pty Ltd
Aran Francis Gallagher
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AREA DETERMINATION SYSTEM, AREA DETERMINATION METHOD, AND PROGRAM
Publication number
20250212154
Publication date
Jun 26, 2025
Panasonic Intellectual Property Management Co., Ltd.
Yanfeng WANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYNCHRONIZATION OF CLOCK DOMAINS ON A DATA NETWORK
Publication number
20250211350
Publication date
Jun 26, 2025
Marvell Asia Pte Ltd.
Olaf Mater
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
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SYNCHRONIZED TIME-DIVISION MULTIPLE ACCESS NETWORK FOR OPTIMIZING C...
Publication number
20250211355
Publication date
Jun 26, 2025
Quasistatics Inc.
Robert Tucker Swan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DETECTION SYSTEM FOR VEHICLE-MOUNTED ETHERNET LINK SYNCHRONIZATION...
Publication number
20250202608
Publication date
Jun 19, 2025
Saijie Yao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TIME SYNCHRONIZATION IN A MEDICAL DEVICE SYSTEM OR NETWORK
Publication number
20250194939
Publication date
Jun 19, 2025
ZOLL Medical Corporation
Bruce Edwards
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FINE TIME MEASUREMENT MESSAGING IN MULTI-LINK OPERATION
Publication number
20250202609
Publication date
Jun 19, 2025
Cisco Technology, Inc.
Ardalan ALIZADEH
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEMS AND METHODS FOR PREVENTING TEMPORAL OVERLAP BETWEEN DATA PA...
Publication number
20250202610
Publication date
Jun 19, 2025
Bose Corporation
Rasmus Abildgren
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL FRONTHAUL SPECTRAL EFFICIENCY FOR HYBRID FRONTHAUL
Publication number
20250202582
Publication date
Jun 19, 2025
AT&T Communications Services India Private Limited
Mritunjay Pandey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PROCESSING METHOD OF DATA FRAME IN OPTICAL TRANSPORT NETWORK, APPAR...
Publication number
20250203250
Publication date
Jun 19, 2025
Huawei Technologies Co., Ltd
Wei Su
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSMITTING METHOD, RECEIVING METHOD, TRANSMITTING APPARATUS, AND...
Publication number
20250192936
Publication date
Jun 12, 2025
Panasonic Intellectual Property Corporation of America
Yutaka MURAKAMI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSMITTING METHOD, RECEIVING METHOD, TRANSMITTING APPARATUS, AND...
Publication number
20250192937
Publication date
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Panasonic Intellectual Property Corporation of America
Yutaka MURAKAMI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TIME SYNCHRONIZATION AREA IN WIRELESS COMMUNICATION
Publication number
20250193814
Publication date
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ZTE CORPORATION
Zhendong LI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM AND METHOD FOR SELECTING PTP SOURCES IN A NETWORK WITH IWF A...
Publication number
20250184023
Publication date
Jun 5, 2025
CIENA CORPORATION
Sharad Kumar Srivastava
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM AND METHOD TO DISCOVER CANDIDATE PTP CLOCK SOURCE(S) OVER IP...
Publication number
20250184024
Publication date
Jun 5, 2025
CIENA CORPORATION
Sharad Kumar Srivastava
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM AND METHOD TO DISCOVER CANDIDATE PTP CLOCK SOURCE(S) OVER IP...
Publication number
20250184025
Publication date
Jun 5, 2025
CIENA CORPORATION
Sharad Kumar Srivastava
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CLOCK SYNCHRONIZATION ASSURANCE METHOD AND APPARATUS
Publication number
20250184026
Publication date
Jun 5, 2025
Huawei Technologies Co., Ltd
Xin Zang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DETECTION APPARATUS, TIME SYNCHRONIZATION METHOD, NON-TRANSITORY CO...
Publication number
20250183902
Publication date
Jun 5, 2025
YOKOGAWA ELECTRIC CORPORATION
Hiromitsu OGAWA
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
METHOD AND DEVICE FOR MONITORING CLOCK NETWORK IN INTEGRATED CIRCUIT
Publication number
20250175319
Publication date
May 29, 2025
Beijing Horizon Information Technology Co., Ltd.
Ruiqi YANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD FOR INITIALIZING A SELF-SYNCHRONIZING CNPRTC MESH
Publication number
20250175277
Publication date
May 29, 2025
Deutsche Telekom AG
Helmut IMLAU
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
IN-ORDER PROCESSING OF NETWORK PACKETS
Publication number
20250166070
Publication date
May 22, 2025
NASDAQ, INC.
Sandeep Rao
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
TIME SYNCHRONIZATION METHOD FOR WIRELESS LOAD TESTING SYSTEM
Publication number
20250159629
Publication date
May 15, 2025
Shaanxi Electric Appliance Institute
Chaoying ZHANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE