ClassID:

231904

H04R1/222 - CPC Classification

Classification description:

Details of transducers, loudspeakers or microphones; Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for microphones

Recent Application in this class:
#1
20260153608
2026-06-04

STATE DETECTION APPARATUS AND STATE DETECTION SYSTEM

#2
20260143276
2026-05-21

GAIN MANAGEMENT METHOD AND DEVICE FOR TELEPHONE HEADSET, TELEPHONE HEADSET, AND MEDIUM

#3
20260136130
2026-05-14

MICRO-ELECTRO-MECHANICAL SYSTEMS MICROPHONE WITH INCREASED BACK VOLUME

#4
20260107101
2026-04-16

MICROPHONE HEAD WITH CALIBRATION DATA

#5
20260025616
2026-01-22

METHOD FOR DETERMINING PREDICTION DIRECTION, DECODER, AND COMPUTER STORAGE MEDIUM

#6
20250365533
2025-11-27

Dynamic Wind Noise Compression Tuning

#7
20250274699
2025-08-28

ELECTRONIC DEVICE ADJUSTING FILTERING CIRCUIT, NOISE PROCESSING CIRCUIT, AND OPERATING METHOD THEREOF

#8
20250267392
2025-08-21

EAR-WEARABLE ELECTRONIC DEVICE INCLUDING ACOUSTIC FILTER

#9
20250254453
2025-08-07

APPARATUS AND METHOD FOR MEMS MICROPHONE PERFORMANCE VIA BACK VOLUME

#10
20250246198
2025-07-31

ELECTRONIC DEVICE FOR ACQUIRING VOICE SIGNALS AND OPERATING METHOD THEREOF

#11
20250193569
2025-06-12

WEARABLE ELECTRONIC DEVICE COMPRISING MICROPHONE MODULE

#12
20250184655
2025-06-05

MICROPHONE WITH INTERCHANGEABLE GRILLES FOR ACOUSTICALLY FILTERING INCOMING AUDIO SIGNALS

#13
20250184654
2025-06-05

MICROPHONE TRACKING BASED AUDIO PROCESSING

#14
20250178884
2025-06-05

MEMS CANTILEVER-ENCLOSURE SPACING

#15
20250113132
2025-04-03

THIN PANEL SURFACE MOUNT MICROPHONE

#16
20250080915
2025-03-06

MEMS microphone chip

#17
20250056150
2025-02-13

SIGNAL SYNCHRONIZATION CIRCUIT, SIGNAL PROCESSING DEVICE, SIGNAL SYNCHRONIZATION METHOD, AND NON-TRANSITORY RECORDING MEDIUM

#18
20240430550
2024-12-26

IMAGE CAPTURING APPARATUS

#19
20240388860
2024-11-21

Visual Indicator for Microphone Placement

#20
20240357282
2024-10-24

DYNAMIC WIND NOISE COMPRESSION TUNING

#21
20240315584
2024-09-26

Systems and Methods for Detecting Heart Pathologies

#22
20240168069
2024-05-23

RECEIVER INTEGRATED REAL-TIME SPECTRUM ANALYSZER

#23
20240164169
2024-05-16

DISPLAY APPARATUS, DISPLAY MODULE, ELECTRONIC DEVICE, AND METHOD FOR MANUFACTURING DISPLAY APPARATUS

#24
20240119864
2024-04-11

Method and system for obtaining acoustical measurements

#25
20240107215
2024-03-28

Microphone front chamber structure and voice reception device

#26
20240090785
2024-03-21

Systems and Methods for Detecting Heart Pathologies

#27
20240089644
2024-03-14

Apparatus and method for MEMS microphone performance via back volume

#28
20240029752
2024-01-25

Directional Voice Sensing Using Coherent Optical Detection

#29
20230421966
2023-12-28

ELECTRET MICROPHONE

#30
20230370767
2023-11-16

Sound-receiving system, and electronic device

#31
20230362524
2023-11-09

SENSOR DEVICE

#32
20230353932
2023-11-02

SENSOR DEVICES

#33
20230328415
2023-10-12

A Microphone Apparatus

#34
20230319458
2023-10-05

VIBRATION SENSING DEVICES

#35
20230283944
2023-09-07

ELECTRONIC DEVICE AND METHOD FOR OUTPUTTING SOUND

#36
20230276167
2023-08-31

Dynamic wind noise compression tuning

#37
20230276165
2023-08-31

AUDIO SIGNAL PROCESSING METHOD, TERMINAL DEVICE AND STORAGE MEDIUM

#38
20230269525
2023-08-24

METHODS OF MAKING SIDE-PORT MICROELECTROMECHANICAL SYSTEM MICROPHONES

#39
20230269319
2023-08-24

ELECTRONIC APPARATUS INCLUDING MICROPHONE MODULE

#40
20230164480
2023-05-25

AUDIO PROCESSING METHOD AND ELECTRONIC DEVICE

#41
20230148241
2023-05-11

Gaze-guided audio

#42
20230114156
2023-04-13

Apparatus and method for MEMS microphone performance via back volume

#43
20230092860
2023-03-23

PROTECTIVE MICROPHONE ENCLOSURE FOR AUTOMOTIVE EXTERIOR

#44
20230083807
2023-03-16

Directional voice sensing using coherent optical detection

#45
20230075789
2023-03-09

Microphone with interchangeable grilles for acoustically filtering incoming audio signals

#46
20230050879
2023-02-16

RAILROAD CROSSING WARNING SYSTEM FOR ENHANCED ROUTE PLANNING

#47
20230047075
2023-02-16

Microphone unit having a pressurized chamber

#48
20230045906
2023-02-16

Microphones

#49
20220402458
2022-12-22

Methods and systems to detect vehicle theft events

#50
20220361768
2022-11-17

APPARATUS, SYSTEM, AND METHOD FOR DETECTING PHYSIOLOGICAL MOVEMENT FROM AUDIO AND MULTIMODAL SIGNALS

#51
20220303667
2022-09-22

Electronic device

#52
20220219704
2022-07-14

Audio-based technique to sense and detect the road condition for autonomous driving vehicles

#53
20220191604
2022-06-16

Microphone module

#54
20220167086
2022-05-26

Method and apparatus for improving effective signal-to-noise ratio of analog to digital conversion for multi-band digital signal processing devices

#55
20220124446
2022-04-21

In-situ calibration of microphone arrays

#56
20220095044
2022-03-24

Apparatus for and method of wind detection

#57
20220095042
2022-03-24

Dynamic wind noise compression tuning

#58
20220059069
2022-02-24

High-frequency broadband airborne noise active noise cancellation

#59
20220030360
2022-01-27

Microphone capsule, microphone arrangement with a plurality of microphone capsules and method for calibrating a microphone array

#60
20220030341
2022-01-27

Microphone module

#61
20210400392
2021-12-23

Acoustic module and electronic product

#62
20210385597
2021-12-09

Sound signal processing method, sound signal processing device, and storage medium that stores sound signal processing program

#63
20210364346
2021-11-25

Vibration sensor having vent for pressure enhancing member

#64
20210329375
2021-10-21

Vacuum-based microphone sensor controller and indicator

#65
20210327246
2021-10-21

SYSTEM AND METHOD FOR DETECTION OF AN ALARM STATE IN A BODY OF WATER

#66
20210306761
2021-09-30

Tabletop microphone assembly

#67
20210297780
2021-09-23

Audio signal processor and generator

#68
20210275056
2021-09-09

APPARATUS, SYSTEM, AND METHOD FOR DETECTING PHYSIOLOGICAL MOVEMENT FROM AUDIO AND MULTIMODAL SIGNALS

#69
20210250680
2021-08-12

Loudspeaker with array of electrostatic card stack drivers

#70
20210241562
2021-08-05

Method for door open/close detection

#71
20210223211
2021-07-22

HAMMERING TEST TERMINAL, HAMMERING TEST SYSTEM, AND HAMMERING TEST DATA REGISTRATION METHOD

#72
20210195340
2021-06-24

Structure of micro-electro-mechanical-system microphone

#73
20210183351
2021-06-17

Audio signal processing method and device, terminal and storage medium

#74
20210136472
2021-05-06

Recording high output power levels of sound at low sound pressure levels

#75
20210092517
2021-03-25

System and methods to reshape fan noise in electronic devices

#76
20210084405
2021-03-18

Dynamic wind noise compression tuning

#77
20210084404
2021-03-18

Method for use with a speakerphone system that corrects for mechanical vibrations

#78
20210029449
2021-01-28

Method and apparatus for improving effective signal-to-noise ratio of analog to digital conversion for multi-band digital signal processing devices

#79
20200404416
2020-12-24

Apparatus for and method of wind detection

#80
20200404415
2020-12-24

Apparatus for and method of wind detection

#81
20200391670
2020-12-17

Systems and methods for canceling road noise in a microphone signal

#82
20200389724
2020-12-10

STORAGE MEDIUM, SPEAKER DIRECTION DETERMINATION METHOD, AND SPEAKER DIRECTION DETERMINATION APPARATUS

#83
20200329299
2020-10-15

Prevention of buzz noise in smart microphones

#84
20200322708
2020-10-08

Mouthguards and methods of use

#85
20200310751
2020-10-01

SYSTEM AND METHOD OF MANAGING DEVICE SOUND LEVEL

#86
20200301516
2020-09-24

Signal processing apparatus and signal processing method

#87
20200252716
2020-08-06

Microphone assembly with back volume vent

#88
20200154201
2020-05-14

Microphone sound isolation baffle and system

#89
20200145748
2020-05-07

Method of decreasing the effect of an interference sound and sound playback device

#90
20200128318
2020-04-23

Method for operating at least one mobile radio device, power supply unit for mobile radio device, charger and audio transmission configuration system

#91
20200053446
2020-02-13

Receiver module

#92
20200053445
2020-02-13

Receiver module

#93
20200007978
2020-01-02

System, method and apparatus for translating, converting and/or transforming audio energy into haptic and/or visual representation

#94
20190394552
2019-12-26

Miniature form factor bluetooth device

#95
20190387314
2019-12-19

Lighting system with remote microphone

#96
20190364360
2019-11-28

Lighting integrated sound processing

#97
20190320261
2019-10-17

Adaptive beamforming

#98
20190306630
2019-10-03

MEMS device and process

#99
20190306614
2019-10-03

Frequency assignments for wireless microphone systems

#100
20190282197
2019-09-19

Heartbeat detection device and heartbeat detection method

#101
20190253810
2019-08-15

Transducer assemblies and methods

#102
20190253791
2019-08-15

Top port multi-part surface mount silicon condenser microphone

#103
20190251983
2019-08-15

Audio processing apparatus and audio processing method

#104
20190246215
2019-08-08

MEMS microphone

#105
20190236416
2019-08-01

ARTIFICIAL INTELLIGENCE SYSTEM UTILIZING MICROPHONE ARRAY AND FISHEYE CAMERA

#106
20190230433
2019-07-25

Methods and apparatus for a microphone system

#107
20190228395
2019-07-25

Audio signal control apparatus and method thereof

#108
20190166257
2019-05-30

Microphone assembly for echo rejection in audio endpoints

#109
20190115039
2019-04-18

Speech processing method and terminal

#110
20190069062
2019-02-28

Microphone cooperation device

#111
20190045310
2019-02-07

IN-THE-EAR-HEARING-DEVICE

#112
20190045300
2019-02-07

Lighting integrated sound processing

#113
20190045296
2019-02-07

System, method and apparatus for translating, converting and/or transforming audio energy into haptic and/or visual representation

#114
20190045288
2019-02-07

Microphone unit having a pressurized chamber

#115
20190045284
2019-02-07

Recording high output power levels of sound at low sound pressure levels

#116
20190020951
2019-01-17

Loudspeaker arrangement in a car interior

#117
20180376239
2018-12-27

Sound collecting apparatus

#118
20180367887
2018-12-20

Fast determination of a frequency of a received audio signal by mobile phone

#119
20180365915
2018-12-20

Audio assisted dynamic barcode system

#120
20180352326
2018-12-06

Underwater ultrasonic communication system and method

#121
20180348879
2018-12-06

Signal processing apparatus and signal processing method

#122
20180324522
2018-11-08

Sound pressure gradient microphone

#123
20180249242
2018-08-30

Top port multi-part surface mount MEMS microphone

#124
20180184212
2018-06-28

Capacitive transducer and acoustic sensor

#125
20180184211
2018-06-28

Capacitive transducer and acoustic sensor

#126
20180139547
2018-05-17

Microphone inlet for hearing aid

#127
20180124510
2018-05-03

Directional microphone device and signal processing techniques

#128
20180115810
2018-04-26

MEMS sensor

#129
20180059155
2018-03-01

Sound processing device and sound processing method

#130
20180054673
2018-02-22

Unidirectional condenser microphone unit

#131
20180054669
2018-02-22

Package structure of MEMS microphone

#132
20180020286
2018-01-18

Directional microphone device and signal processing techniques

#133
20170359658
2017-12-14

MEMS device and process

#134
20170339485
2017-11-23

Reduced-damping acoustic holes

#135
20170303047
2017-10-19

Unidirectional dynamic microphone unit

#136
20170295419
2017-10-12

MICROPHONE SYSTEM WITH MONITOR SOUND

#137
20170272855
2017-09-21

Electric component with sensitive component structures and method for producing an electric component with sensitive component structures

#138
20170264997
2017-09-14

Top port multi-part surface mount silicon condenser microphone

#139
20170201835
2017-07-13

MEMS device and process

#140
20170180849
2017-06-22

Dynamic microphone

#141
20170164098
2017-06-08

Narrow-angle directional microphone

#142
20170164084
2017-06-08

Microphone assembly having an acoustic leak path

#143
20170150248
2017-05-25

Acoustic filtering

#144
20170118561
2017-04-27

MEMS device and process

#145
20170099540
2017-04-06

Unidirectional microphone unit

#146
20170094402
2017-03-30

Microphone having increased rear volume, and method for production thereof

#147
20170085996
2017-03-23

ACOUSTICAL MODULE WITH ACOUSTICAL FILTER

#148
20170034617
2017-02-02

Sound capture method and apparatus

#149
20160366508
2016-12-15

Non-directional microphone

#150
20160309254
2016-10-20

Acoustic sound adsorption material having attached sphere matrix

#151
20160295328
2016-10-06

Dual diaphragm microphone

#152
20160269833
2016-09-15

Parametric in-ear impedance matching device

#153
20160261960
2016-09-08

Microphone inlet for hearing aid

#154
20160255439
2016-09-01

Tunable ribbon microphone

#155
20160241951
2016-08-18

Top port multi-part surface mount silicon condenser microphone

#156
20160234592
2016-08-11

Method of forming a packaged microphone

#157
20160212518
2016-07-21

Electronic device housing

#158
20160205463
2016-07-14

Top port microphone apparatus

#159
20160198283
2016-07-07

SOUND SYSTEM AND METHOD FOR CAPTURING AND REPRODUCING SOUNDS ORIGINATING FROM A PLURALITY OF SOUND SOURCES

#160
20160198265
2016-07-07

Ribbon support system for electrodynamic microphone

#161
20160192084
2016-06-30

Ultrasonic operation of a digital microphone

#162
20160182988
2016-06-23

Microphone with soft clipping circuit

#163
20160182986
2016-06-23

Display apparatus

#164
20160150319
2016-05-26

Method of manufacturing microphone, microphone, and control method therefor

#165
20160112793
2016-04-21

Dynamic microphone unit and dynamic microphone

#166
20160100246
2016-04-07

Unidirectional condenser microphone unit

#167
20160029110
2016-01-28

Silicon condenser microphone

#168
20160007106
2016-01-07

Microphone rubber boot

#169
20150382102
2015-12-31

Dynamic microphone and method of forming back-side air chamber

#170
20150373438
2015-12-24

Microphone device

#171
20150256924
2015-09-10

MEMS device and process

#172
20150195658
2015-07-09

MEMS microphone with spring suspended backplate

#173
20150139432
2015-05-21

Device for measuring sound level

#174
20150078587
2015-03-19

Adjustable ventilation openings in MEMS structures

#175
20150023542
2015-01-22

Earphone microphone

#176
20140346620
2014-11-27

MEMS microphone with reduced parasitic capacitance

#177
20140294218
2014-10-02

Transducer apparatus having a mechanical acoustic filter with movable blocking member

#178
20140073841
2014-03-13

Implantable microphone

#179
20140064545
2014-03-06

Systems and methods for enhancing performance of a microphone

#180
20140064498
2014-03-06

Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources

#181
20130329915
2013-12-12

Microphone features relating to a portable computing device

#182
20130243221
2013-09-19

Method and system of equalization pre-preocessing for sound receivng system

#183
20130223654
2013-08-29

Adjustable ventilation openings in MEMS structures

#184
20130195284
2013-08-01

Microphone system with offset apertures

#185
20130108084
2013-05-02

MEMS microphone with spring suspended backplate

#186
20130070950
2013-03-21

MICROPHONE MODULE WITH HELMHOLTZ RESONANCE CHAMBER

#187
20130051587
2013-02-28

Piezoelectric microphone fabricated on glass

#188
20130035744
2013-02-07

IMPLANTABLE MICROPHONE FOR AN IMPLANTABLE HEARING PROSTHESIS

#189
20120328132
2012-12-27

Perforated Miniature Silicon Microphone

#190
20120270352
2012-10-25

Fabricating MEMS composite transducer including compliant membrane

#191
20120139066
2012-06-07

MEMS MICROPHONE

#192
20120043629
2012-02-23

Surface mount silicon condenser microphone package

#193
20120039499
2012-02-16

Microphone Having Reduced Vibration Sensitivity

#194
20120033831
2012-02-09

Microphone with adjustable characteristics

#195
20110210409
2011-09-01

Surface mount silicon condenser microphone package

#196
20110075866
2011-03-31

Microphone with backplate having specially shaped through-holes

#197
20100303274
2010-12-02

Microphone Having Reduced Vibration Sensitivity

#198
20100278372
2010-11-04

MEMS microphone with spring suspended backplate

#199
20100119086
2010-05-13

Vibration pickup microphone

#200
20100092021
2010-04-15

Implantable microphone for an implantable hearing prothesis

#201
20100067730
2010-03-18

Apparatus for outputting sound comprising multiple receivers and a common output channel

#202
20090285418
2009-11-19

Acoustic-electric transducer, electronic device, method, and computer program product

#203
20090202089
2009-08-13

Microphone with reduced parasitic capacitance

#204
20080304681
2008-12-11

Microphone with aligned apertures

#205
20080192962
2008-08-14

Microphone with dual transducers

#206
20070261910
2007-11-15

Capacitive vibration sensor and method for manufacturing same

#207
20070202627
2007-08-30

Silicon condenser microphone and manufacturing method

#208
20070201715
2007-08-30

Silicon condenser microphone and manufacturing method

#209
20060262948
2006-11-23

Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources

#210
20060109999
2006-05-25

Electro-acoustical transducer and a transducer assembly

#211
20050129256
2005-06-16

Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources

#212
20050096107
2005-05-05

Mobile telephone

#213
20050018864
2005-01-27

Method of manufacturing a microphone

#214
18537372
2025-07-08

Phantom powered FET circuit for audio application

#215
18144206
2025-06-24

Extremely directional microphone

#216
17533117
2023-12-26

Phantom powered FET circuit for audio application

#217
17100281
2023-06-20

Joint suppression of interferences in audio signal

#218
16929458
2021-11-30

Phantom powered FET circuit for audio application

#219
16563936
2020-05-05

In-ear NFMI device with bone conduction Mic communication

#220
16514593
2023-10-24

Variable voltage phantom power supply assembly and a method for customizing performance characteristics of a microphone

#221
16438262
2020-07-21

Phantom powered FET circuit for audio application

#222
16039094
2019-10-22

Reducing noise in audio signals

#223
16017019
2019-08-06

Microphone test device

#224
15988221
2019-03-26

Real-time detection of feedback instability

#225
15972157
2018-08-21

Mobile phones with warnings of approaching vehicles

#226
15950110
2019-02-26

In-ear wireless device with bone conduction mic communication

#227
15843930
2019-03-05

Secure audio acquisition system with limited frequency range for privacy

#228
15796725
2019-07-16

Phantom powered JFET circuit for audio application

#229
15671058
2018-05-22

Recording high output power levels of sound at low sound pressure levels

#230
15417189
2018-03-13

Microphone

#231
14887082
2018-02-06

Microphone with rounded magnet motor assembly, backwave chamber, and phantom powered JFET circuit

#232
14870146
2017-03-21

Magnetically controllable transducer backing component