Low frequency amplifiers

Industry

CPC
H03F3/181

This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

HELECTRICITY H03Electronic circuits H03FAMPLIFIERS H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

Current Industry

H03F3/181Low frequency amplifiers

Industries

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Methods and apparatus for playback using pre-processed information...
- Patent number 12,167,084
- Issue date Dec 10, 2024
- Gracenote, Inc.
- Robert Coover
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Hearing device comprising an amplifier system for minimizing variat...
- Patent number 12,155,998
- Issue date Nov 26, 2024
- Oticon A/S
- Vijay Kumar Bhat
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Methods and apparatus for audio equalization
- Patent number 12,081,833
- Issue date Sep 3, 2024
- Gracenote, Inc.
- Joseph Renner
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Multi-modal audio amplifier and related system
- Patent number 12,034,414
- Issue date Jul 9, 2024
- Bose Corporation
- Lino Antony Pucci
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Self-boosting amplifier
- Patent number 11,955,936
- Issue date Apr 9, 2024
- Bose Corporation
- Remco Terwal
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
User interface mitigation techniques for modular energy systems
- Patent number 11,950,860
- Issue date Apr 9, 2024
- Cilag GmbH International
- Joshua P. Morgan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Amplification system and method
- Patent number 11,843,359
- Issue date Dec 12, 2023
- Kurt P Hahn
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Hybrid speaker and converter
- Patent number 11,832,071
- Issue date Nov 28, 2023
- Sony Interactive Entertainment Inc.
- Takeo Matsukawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Charge pump circuit
- Patent number 11,811,312
- Issue date Nov 7, 2023
- Cirrus Logic, Inc.
- John P. Lesso
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Methods and apparatus for playback using pre-processed profile info...
- Patent number 11,792,481
- Issue date Oct 17, 2023
- Gracenote, Inc.
- Robert Coover
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Window based supply voltage conditioning circuit for noise filtering
- Patent number 11,791,774
- Issue date Oct 17, 2023
- Texas Instruments Incorporated
- Sahiti Priya C
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Systems and methods for instrument reverberation devices
- Patent number 11,749,253
- Issue date Sep 5, 2023
- James Lenger
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Acoustic signatures in a playback system
- Patent number 11,729,568
- Issue date Aug 15, 2023
- Sonos, Inc.
- Robert Reimann
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Hearing device comprising an amplifier system for minimizing variat...
- Patent number 11,711,656
- Issue date Jul 25, 2023
- Oticon A/S
- Vijay Kumar Bhat
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Distributed audio processing system for processing audio signals fr...
- Patent number 11,709,648
- Issue date Jul 25, 2023
- TYXIT SA
- Gaétan Fuchs
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Audio power source with improved efficiency
- Patent number 11,699,981
- Issue date Jul 11, 2023
- Biamp Systems, LLC
- David F. Baretich
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Protection of speaker from excess excursion
- Patent number 11,696,070
- Issue date Jul 4, 2023
- Synaptics Incorporated
- Richard Hodges
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Calibration method for hearing protection devices
- Patent number 11,678,132
- Issue date Jun 13, 2023
- Honeywell International Inc.
- Muneeswaran Mahalingam
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital signal generator for audio artefact reduction
- Patent number 11,658,620
- Issue date May 23, 2023
- NXP B.V.
- Robert van Veldhoven
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Chop tone management for a current sensor or a voltage sensor
- Patent number 11,652,455
- Issue date May 16, 2023
- Cirrus Logic, Inc.
- Ravi K. Kummaraguntla
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Offset calibration circuit and offset calibration method applied in...
- Patent number 11,637,536
- Issue date Apr 25, 2023
- Realtek Semiconductor Corp.
- Chun-Hao Lai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Earbud operation during earbud insertion detection
- Patent number 11,611,822
- Issue date Mar 21, 2023
- AVNERA CORPORATION
- Michael Jon Wurtz
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Methods and apparatus for audio equalization
- Patent number 11,611,800
- Issue date Mar 21, 2023
- Gracenote, Inc.
- Joseph Renner
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Leakage current detection from bias voltage supply of microphone as...
- Patent number 11,598,821
- Issue date Mar 7, 2023
- Knowles Electronics, LLC
- Tore Sejr Jørgensen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Current averaging audio amplifier
- Patent number 11,594,955
- Issue date Feb 28, 2023
- D'Amore Engineering, LLC
- Anthony T. D'Amore
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Matching circuit structure for effectively suppressing low-frequenc...
- Patent number 11,575,352
- Issue date Feb 7, 2023
- LANSUS TECHNOLOGIES INC
- Jiahui Zhou
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Systems and methods for instrument reverberation devices
- Patent number 11,568,852
- Issue date Jan 31, 2023
- James Lenger
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Combination guitar holder and amplifier
- Patent number 11,527,224
- Issue date Dec 13, 2022
- CIARI GUITARS, INC.
- Jonathan Spangler
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Driver circuitry
- Patent number 11,483,654
- Issue date Oct 25, 2022
- Cirrus Logic, Inc.
- Andrew J. Howlett
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Audio signal reproduction apparatus and control method
- Patent number 11,477,589
- Issue date Oct 18, 2022
- Sony Corporation
- Yousuke Takahashi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
AMPLIFIER STARVED HEATER COMPRESSION
- Publication number 20240413798
- Publication date Dec 12, 2024
- Peavey Electronics Corporation
- Hartley Peavey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
METHODS AND APPARATUS FOR AUDIO EQUALIZATION
- Publication number 20240373093
- Publication date Nov 7, 2024
- Gracenote, Inc.
- Joseph Renner
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MULTI-MODAL AUDIO AMPLIFIER AND RELATED SYSTEM
- Publication number 20240322764
- Publication date Sep 26, 2024
- Bose Corporation
- Lino Antony Pucci
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMPEDANCE ADAPTATION CIRCUIT, AUDIO PROCESSING APPARATUS AND IN-VEH...
- Publication number 20240258974
- Publication date Aug 1, 2024
- HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
- Ebing SHEN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
AMPLIFIER
- Publication number 20240178799
- Publication date May 30, 2024
- ROLAND CORPORATION
- Toshiyuki OCHI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ACOUSTIC SIGNATURES IN A PLAYBACK SYSTEM
- Publication number 20240171922
- Publication date May 23, 2024
- Sonos, Inc.
- Robert Reimann
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHODS AND APPARATUS FOR PLAYBACK USING PRE-PROCESSED INFORMATION...
- Publication number 20240056635
- Publication date Feb 15, 2024
- Gracenote, Inc.
- Robert Coover
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AMPLIFIER SYSTEM
- Publication number 20240014791
- Publication date Jan 11, 2024
- Realtek Semiconductor Corp.
- Chen-Fong LIAO
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
METHODS AND APPARATUS FOR AUDIO EQUALIZATION
- Publication number 20230308718
- Publication date Sep 28, 2023
- Gracenote, Inc.
- Joseph Renner
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AMPLIFICATION SYSTEM AND METHOD
- Publication number 20230291374
- Publication date Sep 14, 2023
- Kurt P. Hahn
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
HEARING DEVICE COMPRISING AN AMPLIFIER SYSTEM FOR MINIMIZING VARIAT...
- Publication number 20230283968
- Publication date Sep 7, 2023
- OTICON A/S
- Vijay Kumar BHAT
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SOUND SIGNAL PROCESSING DEVICE, SOUND SYSTEM, AND COMPUTER-IMPLEMEN...
- Publication number 20230239619
- Publication date Jul 27, 2023
- Yamaha Corporation
- Toshifumi KANNO
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Systems and Methods for Instrument Reverberation Devices
- Publication number 20230129524
- Publication date Apr 27, 2023
- James Lenger
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
SELF-BOOSTING AMPLIFIER
- Publication number 20230067217
- Publication date Mar 2, 2023
- Bose Corporation
- Remco Terwal
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
MULTI-MODAL AUDIO AMPLIFIER AND RELATED SYSTEM
- Publication number 20230041832
- Publication date Feb 9, 2023
- Bose Corporation
- Lino Antony Pucci
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AUDIO POWER SOURCE WITH IMPROVED EFFICIENCY
- Publication number 20230025847
- Publication date Jan 26, 2023
- Biamp Systems, LLC
- David F. Baretich
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
MODULAR HEADPHONE SYSTEM
- Publication number 20230007386
- Publication date Jan 5, 2023
- Wiley X. Inc.
- Daniel W. Freeman
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
AUDIO AMPLIFIER WITH INTEGRATED DIGITAL SIGNAL PROCESSING AND SELEC...
- Publication number 20220374195
- Publication date Nov 24, 2022
- SSV WORKS, INC.
- Trevor Kaplan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
USER INTERFACE MITIGATION TECHNIQUES FOR MODULAR ENERGY SYSTEMS
- Publication number 20220313371
- Publication date Oct 6, 2022
- Ethicon LLC
- Joshua P. Morgan
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
CHARGE PUMP CIRCUIT
- Publication number 20220321003
- Publication date Oct 6, 2022
- Cirrus Logic International Semiconductor Ltd.
- John P. Lesso
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
EARBUD OPERATION DURING EARBUD INSERTION DETECTION
- Publication number 20220312104
- Publication date Sep 29, 2022
- Avnera Corporation
- Michael Jon Wurtz
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
CHOP TONE MANAGEMENT FOR A CURRENT SENSOR OR A VOLTAGE SENSOR
- Publication number 20220255515
- Publication date Aug 11, 2022
- Cirrus Logic International Semiconductor Ltd.
- Ravi K. KUMMARAGUNTLA
- G01 - MEASURING TESTING
Information Patent Application
SYSTEMS AND METHODS FOR INSTRUMENT REVERBERATION DEVICES
- Publication number 20220189453
- Publication date Jun 16, 2022
- James Lenger
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
NONLINEAR CONTROL OF A LOUDSPEAKER WITH A NEURAL NETWORK
- Publication number 20220141578
- Publication date May 5, 2022
- Samsung Electronics Co., Ltd.
- Pascal M. Brunet
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DIGITAL SIGNAL GENERATOR FOR AUDIO ARTEFACT REDUCTION
- Publication number 20220123696
- Publication date Apr 21, 2022
- NXP B.V.
- Robert van Veldhoven
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
OFFSET CALIBRATION CIRCUIT AND OFFSET CALIBRATION METHOD APPLIED IN...
- Publication number 20220115995
- Publication date Apr 14, 2022
- Realtek Semiconductor Corp.
- Chun-Hao Lai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Current Averaging Audio Amplifier
- Publication number 20220109367
- Publication date Apr 7, 2022
- D'Amore Engineering, LLC
- Anthony T. D'Amore
- B60 - VEHICLES IN GENERAL
Information Patent Application
PROTECTION OF SPEAKER FROM EXCESS EXCURSION
- Publication number 20220038815
- Publication date Feb 3, 2022
- SYNAPTICS INCORPORATED
- Richard Hodges
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
WINDOW BASED SUPPLY VOLTAGE CONDITIONING CIRCUIT FOR NOISE FILTERING
- Publication number 20220038059
- Publication date Feb 3, 2022
- TEXAS INSTRUMENTS INCORPORATED
- Sahiti Priya C
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Current Averaging Audio Amplifier
- Publication number 20210399630
- Publication date Dec 23, 2021
- D'Amore Engineering, LLC
- Anthony T. D'Amore
- B60 - VEHICLES IN GENERAL

Low frequency amplifiers

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Methods and apparatus for playback using pre-processed information...

Hearing device comprising an amplifier system for minimizing variat...

Methods and apparatus for audio equalization

Multi-modal audio amplifier and related system

Self-boosting amplifier

User interface mitigation techniques for modular energy systems

Amplification system and method

Hybrid speaker and converter

Charge pump circuit

Methods and apparatus for playback using pre-processed profile info...

Window based supply voltage conditioning circuit for noise filtering

Systems and methods for instrument reverberation devices

Acoustic signatures in a playback system

Hearing device comprising an amplifier system for minimizing variat...

Distributed audio processing system for processing audio signals fr...

Audio power source with improved efficiency

Protection of speaker from excess excursion

Calibration method for hearing protection devices

Digital signal generator for audio artefact reduction

Chop tone management for a current sensor or a voltage sensor

Offset calibration circuit and offset calibration method applied in...

Earbud operation during earbud insertion detection

Methods and apparatus for audio equalization

Leakage current detection from bias voltage supply of microphone as...

Current averaging audio amplifier

Matching circuit structure for effectively suppressing low-frequenc...

Systems and methods for instrument reverberation devices

Combination guitar holder and amplifier

Driver circuitry

Audio signal reproduction apparatus and control method

Patents Applicationslast 30 patents

AMPLIFIER STARVED HEATER COMPRESSION

METHODS AND APPARATUS FOR AUDIO EQUALIZATION

MULTI-MODAL AUDIO AMPLIFIER AND RELATED SYSTEM

IMPEDANCE ADAPTATION CIRCUIT, AUDIO PROCESSING APPARATUS AND IN-VEH...

AMPLIFIER

ACOUSTIC SIGNATURES IN A PLAYBACK SYSTEM

METHODS AND APPARATUS FOR PLAYBACK USING PRE-PROCESSED INFORMATION...

AMPLIFIER SYSTEM

METHODS AND APPARATUS FOR AUDIO EQUALIZATION

AMPLIFICATION SYSTEM AND METHOD

HEARING DEVICE COMPRISING AN AMPLIFIER SYSTEM FOR MINIMIZING VARIAT...

SOUND SIGNAL PROCESSING DEVICE, SOUND SYSTEM, AND COMPUTER-IMPLEMEN...

Systems and Methods for Instrument Reverberation Devices

SELF-BOOSTING AMPLIFIER

MULTI-MODAL AUDIO AMPLIFIER AND RELATED SYSTEM

AUDIO POWER SOURCE WITH IMPROVED EFFICIENCY

MODULAR HEADPHONE SYSTEM

AUDIO AMPLIFIER WITH INTEGRATED DIGITAL SIGNAL PROCESSING AND SELEC...

USER INTERFACE MITIGATION TECHNIQUES FOR MODULAR ENERGY SYSTEMS

CHARGE PUMP CIRCUIT

EARBUD OPERATION DURING EARBUD INSERTION DETECTION

CHOP TONE MANAGEMENT FOR A CURRENT SENSOR OR A VOLTAGE SENSOR

SYSTEMS AND METHODS FOR INSTRUMENT REVERBERATION DEVICES

NONLINEAR CONTROL OF A LOUDSPEAKER WITH A NEURAL NETWORK

DIGITAL SIGNAL GENERATOR FOR AUDIO ARTEFACT REDUCTION

OFFSET CALIBRATION CIRCUIT AND OFFSET CALIBRATION METHOD APPLIED IN...

Current Averaging Audio Amplifier

PROTECTION OF SPEAKER FROM EXCESS EXCURSION

WINDOW BASED SUPPLY VOLTAGE CONDITIONING CIRCUIT FOR NOISE FILTERING

Current Averaging Audio Amplifier