Membership
Tour
Register
Log in
Interconnection arrangements not involving centralised switching
Follow
Industry
CPC
H04M9/00
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
H
ELECTRICITY
H04
Electric communication
H04M
TELEPHONIC COMMUNICATION
Current Industry
H04M9/00
Interconnection arrangements not involving centralised switching
Sub Industries
H04M9/001
Two-way communication systems between a limited number of parties
H04M9/002
with subscriber controlled access to a line
H04M9/003
Transmission of control signals from or to the key telephone set; signalling equipment at key telephone set
H04M9/005
with subscriber controlled access to an exchange line
H04M9/006
Exchange line circuits
H04M9/007
wherein the key telephone sets are star-connected to a central unit by a limited number of lines
H04M9/008
Multiplex systems
H04M9/02
involving a common line for all parties
H04M9/022
Multiplex systems
H04M9/025
Time division multiplex systems
H04M9/027
Frequency division multiplex systems
H04M9/04
involving a separate line for each pair of parties
H04M9/06
involving combinations of interconnecting lines
H04M9/08
Two-way loud-speaking telephone systems with means for suppressing echoes or otherwise conditioning for one or other direction of traffic
H04M9/082
using echo cancellers
H04M9/085
using digital techniques
H04M9/087
using different frequency bands for transmitting and receiving paths ; using phase shifting arrangements
H04M9/10
with switching of direction of transmission by voice frequency
Industries
Overview
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Wired telephone to volte adapter
Patent number
11,974,173
Issue date
Apr 30, 2024
Brightsk, LLC
Mark David Hedstrom
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Sound pick-up device, sound pick-up method and non-transitory compu...
Patent number
11,967,304
Issue date
Apr 23, 2024
Panasonic Intellectual Property Corporation of America
Shinichi Yuzuriha
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Communication system for multiple acoustic zones
Patent number
11,950,067
Issue date
Apr 2, 2024
Cerence Operating Company
Tobias Herbig
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Method and device for enhancing a full duplex communication system
Patent number
11,942,104
Issue date
Mar 26, 2024
TEAMVIEWER GERMANY GMBH
Volker Schubert
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Wireless intercom system and group pairing method of wireless inter...
Patent number
11,943,394
Issue date
Mar 26, 2024
Sena Technologies Inc.
Sung Won Yoon
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Audio group identification for conferencing
Patent number
11,916,686
Issue date
Feb 27, 2024
Cisco Technology, Inc.
Raul Alejandro Casas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Vehicular communication system
Patent number
11,909,924
Issue date
Feb 20, 2024
Leroy Mealancon
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Techniques for unified acoustic echo suppression using a recurrent...
Patent number
11,902,757
Issue date
Feb 13, 2024
Tencent America LLC
Meng Yu
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Echo cancellation using neural networks for environments with unsyn...
Patent number
11,875,810
Issue date
Jan 16, 2024
Amazon Technologies, Inc.
Karim Helwani
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Voice signal processing method and device, apparatus, and readable...
Patent number
11,869,528
Issue date
Jan 9, 2024
SUZHOU KEDA TECHNOLOGY CO., LTD.
Sainan Zhu
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Acoustic echo cancellation using a control parameter
Patent number
11,863,702
Issue date
Jan 2, 2024
Nokia Technologies Oy
Carl Nuzman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Audio device and method for detecting device status of audio device...
Patent number
11,863,710
Issue date
Jan 2, 2024
Mediatek Inc.
Shaw-Min Lei
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Cloud-based private branch exchange
Patent number
11,855,808
Issue date
Dec 26, 2023
Zoom Video Communications, Inc.
Walter F. C. Anderson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Spatially informed acoustic echo cancelation
Patent number
11,849,291
Issue date
Dec 19, 2023
Apple Inc.
Mehrez Souden
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Conferencing device with beamforming and echo cancellation
Patent number
11,831,812
Issue date
Nov 28, 2023
ClearOne, Inc.
Ashutosh Pandey
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Multi-channel acoustic echo cancellation
Patent number
11,817,076
Issue date
Nov 14, 2023
Sonos, Inc.
Saeed Bagheri Sereshki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Content and environmentally aware environmental noise compensation
Patent number
11,817,114
Issue date
Nov 14, 2023
Dolby Laboratories Licensing Corporation
Timothy Alan Port
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Computer-programmed telephone-enabled devices for processing and ma...
Patent number
11,811,973
Issue date
Nov 7, 2023
GREEN KEY TECHNOLOGIES, INC.
Anthony Tassone
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Double-talk state detection method and device, and electronic device
Patent number
11,804,235
Issue date
Oct 31, 2023
BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
Junnan Wu
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Head mounted display for an electronic call
Patent number
11,800,307
Issue date
Oct 24, 2023
Glen A. Norris
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Conference call and mobile communication devices that participate i...
Patent number
11,792,329
Issue date
Oct 17, 2023
DSP GROUP LTD.
Yaakov Chen
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Detecting and flagging acoustic problems in video conferencing
Patent number
11,778,106
Issue date
Oct 3, 2023
Google LLC
Christian Schüldt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Systems and methods for crosstalk reduction for audio communications
Patent number
11,743,391
Issue date
Aug 29, 2023
HM Electronics, Inc.
Daniel Gish
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Volume control over shared trunk lines in intercom systems
Patent number
11,722,603
Issue date
Aug 8, 2023
Robert Bosch GmbH
James Puttick
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal processing method and signal processing apparatus
Patent number
11,711,416
Issue date
Jul 25, 2023
Yamaha Corporation
Satoshi Ukai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Echo detection
Patent number
11,695,876
Issue date
Jul 4, 2023
Google LLC
Alexandre Loiko
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Noise reduction device
Patent number
11,665,459
Issue date
May 30, 2023
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Junji Araki
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
System and method for distributed call processing and audio reinfor...
Patent number
11,647,122
Issue date
May 9, 2023
Shure Acquisition Holdings, Inc.
Ali Enteshari
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Robust short-time fourier transform acoustic echo cancellation duri...
Patent number
11,646,045
Issue date
May 9, 2023
Sonos, Inc.
Daniele Giacobello
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Echo cancelling system and echo cancelling method
Patent number
11,616,531
Issue date
Mar 28, 2023
Realtek Semiconductor Corporation
Yun-Tse Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
LEARNING METHOD FOR INTEGRATED NOISE ECHO CANCELLATION SYSTEM USING...
Publication number
20240129410
Publication date
Apr 18, 2024
Industry-University Cooperation Foundation Hanyang University
Joon Hyuk CHANG
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Multi-Channel AEC System Identification for Self-Calibration
Publication number
20240121568
Publication date
Apr 11, 2024
Sonos, Inc.
Wenyu Jin
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Speaker Identification-Based Echo Detection and Solution
Publication number
20240121282
Publication date
Apr 11, 2024
Plantronics, Inc.
Yibo Liu
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
WIDEBAND DOUBLETALK DETECTION FOR OPTIMIZATION OF ACOUSTIC ECHO CAN...
Publication number
20240106933
Publication date
Mar 28, 2024
Shure Acquisition Holdings, Inc.
Wesley Lethem
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Interface Device for Intercom Access Control Systems
Publication number
20240098187
Publication date
Mar 21, 2024
AMAZON TECHNOLOGIES, INC.
Aaron Lung
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Cloud-Based Call Routing
Publication number
20240073061
Publication date
Feb 29, 2024
Zoom Video Communications, Inc.
Walter F.C. Anderson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SPEAKERPHONE AND SERVER DEVICE FOR ENVIRONMENT ACOUSTICS DETERMINAT...
Publication number
20240064241
Publication date
Feb 22, 2024
GN Audio A/S
Karim HADDAD
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Sound Localization for an Electronic Call
Publication number
20240048927
Publication date
Feb 8, 2024
Glen A. Norris
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ACOUSTIC FEEDBACK MANAGEMENT IN REAL-TIME AUDIO COMMUNICATION
Publication number
20240040043
Publication date
Feb 1, 2024
Dolby Laboratories Licensing Corporation
Qianqian FANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DETECTING AND FLAGGING ACOUSTIC PROBLEMS IN VIDEO CONFERENCING
Publication number
20240040044
Publication date
Feb 1, 2024
Google LLC
Christian Schüldt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMPUTER-PROGRAMMED TELEPHONE-ENABLED DEVICES FOR PROCESSING AND MA...
Publication number
20240031490
Publication date
Jan 25, 2024
GREEN KEY TECHNOLOGIES, INC.
Anthony Tassone
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Conferencing Device with Beamforming and Echo Cancellation
Publication number
20240022668
Publication date
Jan 18, 2024
CLEARONE, INC.
Ashutosh Pandey
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
METHOD AND SYSTEM FOR ACOUSTIC COMMUNICATION OF DATA
Publication number
20240007566
Publication date
Jan 4, 2024
SONOS EXPERIENCE LIMITED
Daniel John JONES
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONFERENCE CALL AND MOBILE COMMUNICATION DEVICES THAT PARTICIPATE I...
Publication number
20230421704
Publication date
Dec 28, 2023
D.S.P. Group Ltd.
Yaakov CHEN
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Robust Short-Time Fourier Transform Acoustic Echo Cancellation Duri...
Publication number
20230395088
Publication date
Dec 7, 2023
Sonos, Inc.
Daniele Giacobello
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
DOUBLE-MICROPHONE ARRAY ECHO ELIMINATING METHOD, DEVICE AND ELECTRO...
Publication number
20230353683
Publication date
Nov 2, 2023
Shenzhen Bluetrum Technology Co.,Ltd.
Minghui Song
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
METHOD AND ELECTRONIC DEVICE FOR REMOVING ECHO FLOWING IN DUE TO EX...
Publication number
20230353684
Publication date
Nov 2, 2023
Samsung Electronics Co., Ltd.
Seunghyun KIM
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
METHOD FOR ECHO CANCELLATION, ECHO CANCELLATION DEVICE AND ELECTRON...
Publication number
20230344941
Publication date
Oct 26, 2023
SHENZHEN BLUETRUM TECHNOLOGY CO., LTD.
Minghui Song
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
APPARATUS AND METHOD FOR FILTERED-REFERENCE ACOUSTIC ECHO CANCELLATION
Publication number
20230328183
Publication date
Oct 12, 2023
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG e.V.
Edwin MABANDE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ACOUSTIC ECHO CANCELLATION CONTROL FOR DISTRIBUTED AUDIO DEVICES
Publication number
20230319190
Publication date
Oct 5, 2023
Dolby Laboratories Licensing Corporation
Glenn N. DICKINS
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
ECHO DETECTION
Publication number
20230291840
Publication date
Sep 14, 2023
Google LLC
Alexandre Loiko
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
SYSTEM AND METHOD FOR AUTOMATIC ADJUSTMENT OF REFERENCE GAIN
Publication number
20230223907
Publication date
Jul 13, 2023
Shure Acquisition Holdings, Inc.
Dusan Veselinovic
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Sound Localization for an Electronic Call
Publication number
20230224658
Publication date
Jul 13, 2023
Glen A. Norris
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Communication System For Multiple Acoustic Zones
Publication number
20230209260
Publication date
Jun 29, 2023
CERENCE OPERATING COMPANY
Tobias Herbig
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
METHOD AND SYSTEM FOR ELIMINATING ECHO IN THE REPRODUCTION OF RADIO...
Publication number
20230199121
Publication date
Jun 22, 2023
FREQUENTIS AG
Andreas Reisenbauer
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ADAPTIVE ACOUSTIC ECHO CANCELLATION FOR A STEREO AUDIO SIGNAL
Publication number
20230197051
Publication date
Jun 22, 2023
Shure Acquisition Holdings, Inc.
Justin Sconza
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
ECHO CANCELLATION
Publication number
20230199122
Publication date
Jun 22, 2023
Cirrus Logic International Semiconductor Ltd.
Robert D. RAND
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DOUBLE TALK DETECTORS
Publication number
20230171346
Publication date
Jun 1, 2023
Hewlett-Packard Development Company, L.P.
Srikanth Kuthuru
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
POST-MIXING ACOUSTIC ECHO CANCELLATION SYSTEMS AND METHODS
Publication number
20230164274
Publication date
May 25, 2023
Shure Acquisition Holdings, Inc.
Sean Wells-Rutherford
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
AUDIO DATA PROCESSING METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM
Publication number
20230146871
Publication date
May 11, 2023
Tencent Technology (Shenzhen) Company Ltd.
Muyong Cao
G06 - COMPUTING CALCULATING COUNTING