ClassID:

231948

H04R1/42 - CPC Classification

Classification description:

Details of transducers, loudspeakers or microphones Combinations of transducers with fluid-pressure or other non-electrical amplifying means

Recent Application in this class:
#1
20240406620
2024-12-05

AUDIO PROCESSING METHOD AND APPARATUS AND ELECTRONIC DEVICE

#2
20240251199
2024-07-25

Air-Pulse Generating Device, Wearable Sound Device, Fanless Blower, and Airflow Producing Method

#3
20230379620
2023-11-23

IMPLANTABLE MICROPHONE MANAGEMENT

#4
20230213115
2023-07-06

DETECTING NOISE ON FLOW CONTROLS

#5
20220400335
2022-12-15

Hearing device

#6
20220329935
2022-10-13

Implantable microphone management

#7
20220257188
2022-08-18

ATTACHABLE SENSING POD COMPRISING A PIEZOELECTRIC UNIT

#8
20220226158
2022-07-21

EXTERNAL EAR CANAL PRESSURE REGULATION SYSTEM

#9
20220030351
2022-01-27

Infinite baffle with low stiffness

#10
20210384602
2021-12-09

Metamaterial loudspeaker diaphragm

#11
20210377643
2021-12-02

Sound device and sound system

#12
20210329375
2021-10-21

Vacuum-based microphone sensor controller and indicator

#13
20200015748
2020-01-16

Attachable sensing pod comprising a piezoelectric unit

#14
20200015027
2020-01-09

Microphone and method of testing a microphone

#15
20180359579
2018-12-13

Adjustable securing mechanism

#16
20180324507
2018-11-08

Sensor system for measuring acceleration and pressure

#17
20180321419
2018-11-08

Calibration of combined acceleration and pressure sensors

#18
20180227668
2018-08-09

Electronic device including speaker

#19
20180227667
2018-08-09

High-pressure water resistant microspeaker with improved coil structure

#20
20180220239
2018-08-02

EARPLUGS, EARPHONES, AND EARTIPS

#21
20180120269
2018-05-03

Acoustic gas volume fraction measurement in a multiphase flowing liquid

#22
20180098163
2018-04-05

Adjustable securing mechanism

#23
20180000686
2018-01-04

External ear canal pressure regulation system

#24
20170374451
2017-12-28

Electronic device

#25
20170238102
2017-08-17

Apparatuses and methods for sound recording, manipulation, distribution and pressure wave creation through energy transfer between photons and media particles

#26
20170208388
2017-07-20

Speaker system and electronic device using same

#27
20160323682
2016-11-03

Open ear canal hearing aid

#28
20160192077
2016-06-30

METHOD AND STRUCTURE FOR INDUCING ACOUSTIC SIGNALS AND ATTENUATING ACOUSTIC SIGNALS

#29
20160128897
2016-05-12

System for alleviating symptoms of a neurological disorder

#30
20160058620
2016-03-03

External ear canal pressure regulation system

#31
20160029134
2016-01-28

Adjustable securing mechanism for a space access device

#32
20150381024
2015-12-31

Linear Loudspeaker Motor

#33
20150362394
2015-12-17

Pressure-sensitive sensor

#34
20150271594
2015-09-24

Loudspeaker with pressure compensation element

#35
20150263596
2015-09-17

Linear Loudspeaker Motor

#36
20150230989
2015-08-20

External ear canal pressure regulation system

#37
20150208175
2015-07-23

Electrically conductive membrane pump/transducer and methods to make and use same

#38
20150110301
2015-04-23

Throat microphone

#39
20150036860
2015-02-05

Audio device for altering water structure

#40
20150034411
2015-02-05

Volume amplifying assembly and portable electronic device packing case using the volume amplifying assembly

#41
20150003644
2015-01-01

External ear canal pressure regulation system

#42
20140348351
2014-11-27

Structures for dynamically tuned audio in a media device

#43
20140294213
2014-10-02

Ear cleaning apparatus

#44
20130322657
2013-12-05

Parametric transducer system and related methods

#45
20130294623
2013-11-07

High Performance Transducer

#46
20130170690
2013-07-04

Radio apparatus comprising an agglomeration of acoustically adsorbing members

#47
20120148082
2012-06-14

Parametric transducers and related methods

#48
20120148070
2012-06-14

Parametric signal processing systems and methods

#49
20120147707
2012-06-14

Parametric transducer systems and related methods

#50
20120128190
2012-05-24

Gas filled speaker volume

#51
20120053711
2012-03-01

Porting audio using a connector in a small form factor electronic device

#52
20110311079
2011-12-22

Method and structure for inducing acoustic signals and attenuating acoustic signals

#53
20110019851
2011-01-27

Open ear canal hearing aid with adjustable non-occluding securing mechanism

#54
20100329478
2010-12-30

Housing for microphone arrays and multi-sensor devices for their size optimization

#55
20090202090
2009-08-13

Piezo speaker pressure sensor

#56
20070160246
2007-07-12

Spherical loudspeaker for omnipresent sound reproduction

#57
20070104344
2007-05-10

Hearing aid mechanism

#58
20070098199
2007-05-03

Speaker system for head protective gear

#59
16814572
2020-08-11

Ordered picklist for liquid transfer

#60
16237741
2020-04-21

Gas-filled acoustic suspension speaker

#61
14994449
2016-11-15

Analog area speaker panel with precision placement and direction of audio radiation