Aspects regarding the stray flux internal or external to the magnetic circuit

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H04R2209/022

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HELECTRICITY H04Electric communication H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS DEAF-AID SETS PUBLIC ADDRESS SYSTEMS H04R2209/00Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups

Current Industry

H04R2209/022Aspects regarding the stray flux internal or external to the magnetic circuit

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Sound-producing apparatus, acoustic module provided with sound-prod...
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- Issue date Jan 7, 2025
- GOERTEK INC.
- Lianshan Ge
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker and electronic apparatus
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- Issue date Oct 1, 2024
- BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
- Xiulu Jin
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Information Patent Grant
Audio device transducer and associated systems and methods
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- Issue date Sep 17, 2024
- Sonos, Inc.
- Timothy Sheen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Magnetic retention system
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- Issue date Jun 4, 2024
- Cochlear Limited
- Johan Gustafsson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker
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- Issue date May 7, 2024
- Alps Alpine Co., Ltd.
- Hiroki Toita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio transducer with forced ventilation of motor and method
- Patent number 11,937,061
- Issue date Mar 19, 2024
- Polk Audio, LLC
- Sean O'Brien
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bone conduction device including a balanced electromagnetic actuato...
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- Issue date Feb 27, 2024
- Cochlear Limited
- Kristian Asnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Magnetic field canceling audio devices
- Patent number 11,641,553
- Issue date May 2, 2023
- SeeScan, Inc.
- Ray Merewether
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio transducer with forced ventilation of motor and method
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- Issue date Mar 21, 2023
- Polk Audio, LLC
- Sean O'Brien
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electrodynamic actuator for acoustic oscillations
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- Issue date Mar 21, 2023
- FLATVOX FZC LLC
- Dmitry Vladimirovich Petrenko
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker assembly, sound generating apparatus and electronic device
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- Issue date Aug 30, 2022
- Hytera Communications Corporation Limited
- Weiqiang Lei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wearable audio device
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- Josue Malaver
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Information Patent Grant
Electro-magnetic motor geometry with radial ring and axial pole magnet
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Information Patent Grant
Sound generator and electronic product
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- Issue date Jan 11, 2022
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- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electric motor
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- Issue date Jan 4, 2022
- Curtis E. Graber
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electric motor
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- Issue date Nov 9, 2021
- Curtis E. Graber
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Magnetic field canceling audio devices
- Patent number 11,146,892
- Issue date Oct 12, 2021
- SeeScan, Inc.
- Ray Merewether
- G01 - MEASURING TESTING
Information Patent Grant
Bone conduction magnetic retention system
- Patent number 11,082,783
- Issue date Aug 3, 2021
- Cochlear Limited
- Johan Gustafsson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electromagnetic transducer with specific internal geometry
- Patent number 11,026,032
- Issue date Jun 1, 2021
- Cochlear Limited
- Marcus Andersson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bone conduction device including a balanced electromagnetic actuato...
- Patent number 10,979,829
- Issue date Apr 13, 2021
- Cochlear Limited
- Kristian Asnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker
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- Issue date Mar 16, 2021
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- Oleg Bogdanov
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Magnet assembly for a loudspeaker and loudspeaker with such a magne...
- Patent number 10,869,131
- Issue date Dec 15, 2020
- Harman Becker Automotive Systems GmbH
- Guenther Weber
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker with dual plate structure
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- Issue date Jun 9, 2020
- Alpine Electronics, Inc.
- Benny Danovi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Magnetic field shielding apparatus
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- Issue date Apr 21, 2020
- Electronics and Telecommunications Research Institute
- Byung Chan Kim
- G01 - MEASURING TESTING
Information Patent Grant
Transducer and method of operation
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- Issue date Feb 25, 2020
- Linear Labs, LLC
- Fred E. Hunstable
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker structure
- Patent number 10,567,882
- Issue date Feb 18, 2020
- TYMPHANY ACOUSTIC TECHNOLOGY (HUIZHOU) CO., LTD.
- Changlin Guo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hybrid speaker
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- Issue date Feb 4, 2020
- EARBRIDGE INC.
- Okjeong Yoo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmitter with improved sensitivity and shielding
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- Issue date Dec 31, 2019
- Red Tail Hawk Corporation
- John W. Parkins
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dome tweeter
- Patent number 10,506,346
- Issue date Dec 10, 2019
- TYMPHANY ACOUSTIC TECHNOLOGY (HUIZHOU) CO., LTD.
- Zhiwen Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic device with speaker
- Patent number 10,412,476
- Issue date Sep 10, 2019
- Samsung Electronics Co., Ltd.
- Ji-Young Lim
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Double-sided Sounding Device
- Publication number 20240348980
- Publication date Oct 17, 2024
- AAC MICROTECH (CHANGZHOU) CO., LTD.
- Long Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MAGNETIC RETENTION SYSTEM
- Publication number 20240323623
- Publication date Sep 26, 2024
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- Johan GUSTAFSSON
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Audio Transducer With Forced Ventilation of Motor and Method
- Publication number 20240251205
- Publication date Jul 25, 2024
- Polk Audio, LLC
- Sean O'Brien
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRODYNAMIC VIBRATION EXCITER
- Publication number 20230372971
- Publication date Nov 23, 2023
- Continental Engineering Services GmbH
- Philipp Neubauer
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Application
Audio Transducer With Forced Ventilation of Motor and Method
- Publication number 20230199394
- Publication date Jun 22, 2023
- Polk Audio, LLC
- Sean O'Brien
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BONE CONDUCTION MAGNETIC RETENTION SYSTEM
- Publication number 20230156416
- Publication date May 18, 2023
- Johan GUSTAFSSON
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LOUDSPEAKER AND ELECTRONIC APPARATUS
- Publication number 20230128831
- Publication date Apr 27, 2023
- Beijing Xiaomi Mobile Software Co., Ltd.
- Xiulu JIN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMPROVEMENTS IN AND RELATING TO LOUDSPEAKER MAGNET ASSEMBLIES
- Publication number 20230117602
- Publication date Apr 20, 2023
- B&W GROUP LTD
- Martial Andre Robert Rousseau
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUDIO DEVICE TRANSDUCER AND ASSOCIATED SYSTEMS AND METHODS
- Publication number 20230007376
- Publication date Jan 5, 2023
- Sonos, Inc.
- Timothy Sheen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SOUND-PRODUCING APPARATUS, ACOUSTIC MODULE PROVIDED WITH SOUND-PROD...
- Publication number 20220345824
- Publication date Oct 27, 2022
- Goertek Inc.
- Lianshan Ge
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SPEAKER
- Publication number 20220312123
- Publication date Sep 29, 2022
- ALPS ALPINE CO., LTD.
- Hiroki Toita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BONE CONDUCTION MAGNETIC RETENTION SYSTEM
- Publication number 20220021991
- Publication date Jan 20, 2022
- Johan GUSTAFSSON
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BONE CONDUCTION DEVICE INCLUDING A BALANCED ELECTROMAGNETIC ACTUATO...
- Publication number 20210306776
- Publication date Sep 30, 2021
- Kristian Asnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LOUDSPEAKER ASSEMBLY, SOUND GENERATING APPARATUS AND ELECTRONIC DEVICE
- Publication number 20200404426
- Publication date Dec 24, 2020
- HYTERA COMMUNICATIONS CORPORATION LIMITED
- WEIQIANG LEI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SOUND GENERATOR AND ELECTRONIC PRODUCT
- Publication number 20200404425
- Publication date Dec 24, 2020
- Goertek Inc.
- Guodong Zhao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LOUDSPEAKER
- Publication number 20200275212
- Publication date Aug 27, 2020
- Paradigm Electronics Inc.
- Oleg BOGDANOV
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
HYBRID SPEAKER
- Publication number 20190268688
- Publication date Aug 29, 2019
- EARBRIDGE INC.
- Okjeong YOO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MAGNET ASSEMBLY FOR A LOUDSPEAKER AND LOUDSPEAKER WITH SUCH A MAGNE...
- Publication number 20190246210
- Publication date Aug 8, 2019
- Harman Becker Automotive Systems GmbH
- Guenther Weber
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BONE CONDUCTION DEVICE INCLUDING A BALANCED ELECTROMAGNETIC ACTUATO...
- Publication number 20190215625
- Publication date Jul 11, 2019
- Kristian Asnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTRIC MOTOR
- Publication number 20190182598
- Publication date Jun 13, 2019
- Curtis E Graber
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Sound Transducer
- Publication number 20190141454
- Publication date May 9, 2019
- Nokia Technologies Oy
- Shengrong SHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MAGNETIC FIELD SHIELDING APPARATUS
- Publication number 20180235112
- Publication date Aug 16, 2018
- ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTIT INSTITUTE
- Byung Chan KIM
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
ELECTRIC MOTOR
- Publication number 20180070182
- Publication date Mar 8, 2018
- Curtis E Graber
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LOUDSPEAKER STRUCTURE
- Publication number 20180063643
- Publication date Mar 1, 2018
- Premium Loudspeakers (Hui Zhou) Co., Ltd.
- GUO CHANGLIN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Loudspeaker
- Publication number 20180007470
- Publication date Jan 4, 2018
- AAC Technologies Pte. Ltd.
- Huanbin Liao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELECTROMAGNETIC TRANSDUCER WITH SPECIFIC INTERNAL GEOMETRY
- Publication number 20170325035
- Publication date Nov 9, 2017
- Marcus ANDERSSON
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Sound Transducer
- Publication number 20170134864
- Publication date May 11, 2017
- Nokia Technologies Oy
- Shengrong SHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BONE CONDUCTION DEVICE INCLUDING A BALANCED ELECTROMAGNETIC ACTUATO...
- Publication number 20170070831
- Publication date Mar 9, 2017
- Kristian Asnes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ONE PIECE FRAME FOR A COMPONENT IN AN ELECTRONIC DEVICE
- Publication number 20160277819
- Publication date Sep 22, 2016
- Apple Inc.
- Michael D. McBROOM
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MAGNETIC SHIELDING AND COMMUNICATION COIL
- Publication number 20160277841
- Publication date Sep 22, 2016
- Microsoft Technology Licensing, LLC
- Benedict Slotte
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Aspects regarding the stray flux internal or external to the magnetic circuit

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Sound-producing apparatus, acoustic module provided with sound-prod...

Loudspeaker and electronic apparatus

Audio device transducer and associated systems and methods

Magnetic retention system

Speaker

Audio transducer with forced ventilation of motor and method

Bone conduction device including a balanced electromagnetic actuato...

Magnetic field canceling audio devices

Audio transducer with forced ventilation of motor and method

Electrodynamic actuator for acoustic oscillations

Loudspeaker assembly, sound generating apparatus and electronic device

Wearable audio device

Electro-magnetic motor geometry with radial ring and axial pole magnet

Sound generator and electronic product

Electric motor

Electric motor

Magnetic field canceling audio devices

Bone conduction magnetic retention system

Electromagnetic transducer with specific internal geometry

Bone conduction device including a balanced electromagnetic actuato...

Loudspeaker

Magnet assembly for a loudspeaker and loudspeaker with such a magne...

Loudspeaker with dual plate structure

Magnetic field shielding apparatus

Transducer and method of operation

Loudspeaker structure

Hybrid speaker

Transmitter with improved sensitivity and shielding

Dome tweeter

Electronic device with speaker

Patents Applicationslast 30 patents

Double-sided Sounding Device

MAGNETIC RETENTION SYSTEM

Audio Transducer With Forced Ventilation of Motor and Method

ELECTRODYNAMIC VIBRATION EXCITER

Audio Transducer With Forced Ventilation of Motor and Method

BONE CONDUCTION MAGNETIC RETENTION SYSTEM

LOUDSPEAKER AND ELECTRONIC APPARATUS

IMPROVEMENTS IN AND RELATING TO LOUDSPEAKER MAGNET ASSEMBLIES

AUDIO DEVICE TRANSDUCER AND ASSOCIATED SYSTEMS AND METHODS

SOUND-PRODUCING APPARATUS, ACOUSTIC MODULE PROVIDED WITH SOUND-PROD...

SPEAKER

BONE CONDUCTION MAGNETIC RETENTION SYSTEM

BONE CONDUCTION DEVICE INCLUDING A BALANCED ELECTROMAGNETIC ACTUATO...

LOUDSPEAKER ASSEMBLY, SOUND GENERATING APPARATUS AND ELECTRONIC DEVICE

SOUND GENERATOR AND ELECTRONIC PRODUCT

LOUDSPEAKER

HYBRID SPEAKER

MAGNET ASSEMBLY FOR A LOUDSPEAKER AND LOUDSPEAKER WITH SUCH A MAGNE...

BONE CONDUCTION DEVICE INCLUDING A BALANCED ELECTROMAGNETIC ACTUATO...

ELECTRIC MOTOR

Sound Transducer

MAGNETIC FIELD SHIELDING APPARATUS

ELECTRIC MOTOR

LOUDSPEAKER STRUCTURE

Loudspeaker

ELECTROMAGNETIC TRANSDUCER WITH SPECIFIC INTERNAL GEOMETRY

Sound Transducer

BONE CONDUCTION DEVICE INCLUDING A BALANCED ELECTROMAGNETIC ACTUATO...

ONE PIECE FRAME FOR A COMPONENT IN AN ELECTRONIC DEVICE

MAGNETIC SHIELDING AND COMMUNICATION COIL