Patents-Review.com
ClassID:

231939 ⎘

H04R1/34 - CPC Classification

Classification description:

Details of transducers, loudspeakers or microphones; Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means

Sub-classes:
Recent Application in this class:
#1
20250211896
2025-06-26

LOUDSPEAKER ASSEMBLY

 #2
20250193570
2025-06-12

EARPHONE WITHOUT COVERING AN EAR CANAL

 #3
20250119679
2025-04-10

MANIFOLD ARCHITECTURE FOR WIND NOISE ABATEMENT

 #4
20250039591
2025-01-30

ACOUSTIC OUTPUT APPARATUS

 #5
20250030969
2025-01-23

ACOUSTIC OUTPUT APPARATUS AND METHODS THEREOF

 #6
20250016487
2025-01-09

ACOUSTIC OUTPUT APPARATUS

 #7
20250014566
2025-01-09

ACOUSTIC SYSTEM AND ELECTRONIC MUSICAL INSTRUMENT

 #8
20240422466
2024-12-19

OPEN EARPHONE

 #9
20240406611
2024-12-05

ACOUSTIC OUTPUT APPARATUS

 #10
20240388831
2024-11-21

ACOUSTIC OUTPUT DEVICE

 #11
20240323592
2024-09-26

ACOUSTIC OUTPUT DEVICES

 #12
20240323579
2024-09-26

ACOUSTIC OUTPUT DEVICE AND COMPONENTS THEREOF

 #13
20240205582
2024-06-20

Acoustic device

 #14
20240171892
2024-05-23

ACOUSTIC OUTPUT DEVICE AND NOISE REDUCTION AND SOUND TRANSMISSION DEVICE

 #15
20240073579
2024-02-29

Acoustic output apparatus

 #16
20230396912
2023-12-07

ACOUSTIC OUTPUT APPARATUS AND METHOD THEREOF

 #17
20230345168
2023-10-26

Manifold architecture for wind noise abatement

 #18
20230336902
2023-10-19

Earphone without covering an ear canal

 #19
20230276161
2023-08-31

Acoustic output apparatus

 #20
20230276160
2023-08-31

Acoustic output apparatus

 #21
20230276159
2023-08-31

Open ear headphones

 #22
20230232145
2023-07-20

Acoustic output apparatus and methods thereof

 #23
20230171528
2023-06-01

Open earphone

 #24
20230156391
2023-05-18

Acoustic output device

 #25
20230156390
2023-05-18

Acoustic output device

 #26
20230145038
2023-05-11

Acoustic output device

 #27
20230141946
2023-05-11

Acoustic output device

 #28
20230109699
2023-04-13

Acoustic device

 #29
20230070507
2023-03-09

ACOUSTIC OUTPUT APPARATUS AND METHOD THEREOF

 #30
20230066263
2023-03-02

Acoustic output device

 #31
20230044069
2023-02-09

Enclosure for diffusing sound by reverberation

 #32
20230019204
2023-01-19

APPARATUS AND METHOD FOR RENDERING AN AUDIO SCENE USING VALID INTERMEDIATE DIFFRACTION PATHS

 #33
20230012124
2023-01-12

Acoustic output device and components thereof

 #34
20230009189
2023-01-12

ACOUSTIC REPRODUCTION SYSTEM, DISPLAY DEVICE, AND CALIBRATION METHOD

 #35
20230007380
2023-01-05

Acoustic output apparatus

 #36
20220408172
2022-12-22

Acoustic output apparatus

 #37
20220386012
2022-12-01

Acoustic output apparatus

 #38
20220264212
2022-08-18

Open earphone

 #39
20220210537
2022-06-30

Electronic device including speaker module

 #40
20220070570
2022-03-03

Acoustic output device and noise reduction and sound transmission device

 #41
20220030347
2022-01-27

Acoustic output apparatus

 #42
20220021963
2022-01-20

Acoustic output apparatus and methods thereof

 #43
20210377645
2021-12-02

Acoustic output apparatus and method thereof

 #44
20210289281
2021-09-16

Acoustic output apparatus

 #45
20210274281
2021-09-02

Acoustic output apparatus

 #46
20210274280
2021-09-02

Acoustic output device and buttons thereof

 #47
20210274278
2021-09-02

Acoustic output apparatus

 #48
20210274276
2021-09-02

Earphone without covering an ear canal

 #49
20210271115
2021-09-02

Microphone noise reduction system and smart glasses using the system

 #50
20210243518
2021-08-05

Acoustic output device and components thereof

 #51
20210235181
2021-07-29

Acoustic output apparatus

 #52
20210227306
2021-07-22

Audio glasses

 #53
20210223577
2021-07-22

Acoustic output device

 #54
20210185421
2021-06-17

Acoustic output apparatus with a plurality of acoustic drivers and methods thereof

 #55
20210168500
2021-06-03

Acoustic output apparatus

 #56
20210168498
2021-06-03

Acoustic output apparatus with drivers in multiple frequency ranges and bluetooth low energy receiver

 #57
20210168495
2021-06-03

Acoustic output apparatus

 #58
20210168494
2021-06-03

Acoustic output apparatus and method thereof

 #59
20210168485
2021-06-03

Open earphone

 #60
20210160610
2021-05-27

Acoustic output apparatus and methods thereof

 #61
20210160606
2021-05-27

Open earphone

 #62
20210160602
2021-05-27

Acoustic device

 #63
20210127200
2021-04-29

Acoustic output device

 #64
20210127197
2021-04-29

Acoustic output apparatus

 #65
20210112329
2021-04-15

Open earphone

 #66
20210014606
2021-01-14

Sound directing framework

 #67
20200312291
2020-10-01

Acoustic insulator for smart speaker devices

 #68
20200288236
2020-09-10

Loudspeaker with waveguide

 #69
20200184947
2020-06-11

Sound output device, sound output method, and sound output system

 #70
20200112780
2020-04-09

Case for microphone device

 #71
20200029151
2020-01-23

Vertically configured parametric transducer headphones

 #72
20190387310
2019-12-19

Omni-directional speaker system and related devices and methods

 #73
20190379966
2019-12-12

Speaker module for mobile device and mobile device having duct radiation structure

 #74
20190344709
2019-11-14

Ultrasonic wave output device

 #75
20190261075
2019-08-22

Speaker device

 #76
20190253792
2019-08-15

Acoustic lens and speaker system

 #77
20190218394
2019-07-18

Resin material for acoustic wave probe, acoustic lens, acoustic wave probe, acoustic wave measurement apparatus, ultrasonic diagnostic apparatus, photoacoustic wave measurement apparatus, and ultrasound endoscope

 #78
20190215635
2019-07-11

Orientation-responsive acoustic array control

 #79
20190192108
2019-06-27

Stethoscope with two pair of headsets

 #80
20190174224
2019-06-06

Combination phase plug, and compression driver and speaker using same

 #81
20190116425
2019-04-18

Speaker unit and acoustic device

 #82
20190051284
2019-02-14

Acoustic tube and acoustic reproduction apparatus

 #83
20190034155
2019-01-31

Information processing apparatus, information processing method, and program

 #84
20190020938
2019-01-17

Electronic device with heat radiation structure using audio device

 #85
20190019495
2019-01-17

Sound output device, sound output method, and sound output system for sound reverberation

 #86
20180376243
2018-12-27

Lighting centric indoor location based service with speech-based user interface

 #87
20180367892
2018-12-20

Vibration diaphragm

 #88
20180367891
2018-12-20

Vibration Diaphragm

 #89
20180367890
2018-12-20

Vibration diaphragm

 #90
20180338194
2018-11-22

Earplug structure and earphone device

 #91
20180242061
2018-08-23

Speaker device

 #92
20180234759
2018-08-16

Acoustical transverse horn for controlled horizontal and vertical sound dispersion

 #93
20180220234
2018-08-02

Electroacoustic converter, assembly having electroacoustic converter, and electroacoustic converter apparatus having assembly

 #94
20180213311
2018-07-26

Top port microphone and method for the production of same

 #95
20180199004
2018-07-12

SPEAKER SYSTEM, DISPLAY DEVICE, AND TELEVISION RECEIVER

 #96
20180109863
2018-04-19

Earphone device

 #97
20180033423
2018-02-01

Acoustic device for forming a wall of sound underwater

 #98
20170322306
2017-11-09

Method and apparatus for obtaining vibration information and user equipment

 #99
20170307426
2017-10-26

Ultrasonic transducer with emitting element

 #100
20170303034
2017-10-19

Omni-directional speaker system and related devices and methods

 #101
20170257716
2017-09-07

Device and method for adjusting an output to an audio port based on a determined sensitivity

 #102
20170245058
2017-08-24

Double ring radiator and dual co-ax driver

 #103
20170180852
2017-06-22

Orientation-responsive acoustic array control

 #104
20170164112
2017-06-08

EARPHONE

 #105
20170156004
2017-06-01

Acoustic tunable speaker device

 #106
20170118554
2017-04-27

Passive sound proliferation device and methods of using the passive sound proliferation device

 #107
20170094406
2017-03-30

Three hundred and sixty degree horn for omnidirectional loudspeaker

 #108
20170070813
2017-03-09

Mobile device acoustic divider

 #109
20170048603
2017-02-16

Earphone device

 #110
20170013351
2017-01-12

Speaker module for mobile device and mobile device having duct radiation structure

 #111
20160277819
2016-09-22

One piece frame for a component in an electronic device

 #112
20160232759
2016-08-11

Life safety device with compact circumferential acoustic resonator

 #113
20160119735
2016-04-28

Orientation-responsive acoustic array control

 #114
20160105741
2016-04-14

Earphone device

 #115
20160100241
2016-04-07

Earphone device

 #116
20160100240
2016-04-07

Earphone device

 #117
20160044419
2016-02-11

Energy conversion apparatus and speaker structure

 #118
20150310709
2015-10-29

Life safety device with compact circumferential acoustic resonator

 #119
20150249879
2015-09-03

Earphone device

 #120
20150208162
2015-07-23

Orientation-responsive acoustic array control

 #121
20150110327
2015-04-23

Speaker back cavity

 #122
20150104055
2015-04-16

Branched acoustic device

 #123
20150034411
2015-02-05

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

 #124
20140376741
2014-12-25

Audio source position estimation

 #125
20140294219
2014-10-02

Phi-based enclosure for speaker systems

 #126
20140254833
2014-09-11

Portable isolation cabinet

 #127
20140226840
2014-08-14

Sound reflector and electronic device with speaker, including sound reflector

 #128
20140219489
2014-08-07

WIRELESS SPEAKER WITH PARABOLIC REFLECTORS

 #129
20140205133
2014-07-24

Orientation-responsive acoustic array control

 #130
20140119588
2014-05-01

Acoustical transverse horn for controlled horizontal and vertical sound dispersion

 #131
20140050489
2014-02-20

Optical microphone

 #132
20140044278
2014-02-13

Smartpen configured for hands free audio recording

 #133
20130294630
2013-11-07

Earphone device

 #134
20130228393
2013-09-05

Phase plug and acoustic lens for direct radiating loudspeaker

 #135
20130223655
2013-08-29

Speaker module for mobile device and mobile device having duct radiation structure

 #136
20130216083
2013-08-22

Directional audio waveguide array

 #137
20120321120
2012-12-20

Speaker apparatus

 #138
20120279797
2012-11-08

Phase plug and acoustic lens for direct radiating loudspeaker

 #139
20120269376
2012-10-25

Earphone device

 #140
20120263325
2012-10-18

Orientation-responsive acoustic array control

 #141
20120243721
2012-09-27

Differential microphone unit and mobile apparatus

 #142
20120177237
2012-07-12

Audio port configuration for compact electronic devices

 #143
20120063619
2012-03-15

HEADPHONE IMPROVEMENTS

 #144
20110188661
2011-08-04

Flat panel loudspeakers

 #145
20110168480
2011-07-14

Phase plug and acoustic lens for direct radiating loudspeaker

 #146
20100246864
2010-09-30

HEADPHONE IMPROVEMENTS

 #147
20100232615
2010-09-16

Sound monitor

 #148
20090277713
2009-11-12

Acoustic loading device for loudspeakers

 #149
20090154757
2009-06-18

Speaker device, installation body for speaker device, and mobile body having speaker device mounted thereon

 #150
20090074217
2009-03-19

Sound channel for a hearing apparatus and corresponding production process

 #151
20090041280
2009-02-12

Loudspeaker

 #152
20080316864
2008-12-25

SPRING BASED FINE ACOUSTIC WAVEGUIDE

 #153
20080174665
2008-07-24

Audio source tracking arrangement

 #154
20080144864
2008-06-19

Audio Apparatus And Method

 #155
20070297630
2007-12-27

Sound receiver

 #156
20070201707
2007-08-30

Acoustic Effecter

 #157
20070189570
2007-08-16

Earphone device

 #158
20070049359
2007-03-01

Sound guide for speaker and handset for mobile communication using the same

 #159
20070007858
2007-01-11

Microphone with adjustable properties

 #160
20060120548
2006-06-08

Speaker device

 #161
20060084468
2006-04-20

Mobile communication device having speaker unit

 #162
20050157901
2005-07-21

Sound collector

 #163
17405177
2022-11-01

Omnidirectional speaker with an inverted dome diaphragm and asymmetric vertical directivity response

 #164
16691639
2020-10-13

Audio instrument with three-dimensional localization

 #165
16188575
2019-10-29

Prime polygon reflectors and methods of use

 #166
15243506
2017-05-16

Wave-shaping assembly for speaker and microphone performance enhancement in mobile computing, telephony, and other electronic devices

 #167
14960615
2017-09-12

Loudspeaker with sound dispersion lens