ClassID:

232050

H04R23/006 - CPC Classification

Classification description:

Transducers other than those covered by groups  -  using solid state devices

Recent Application in this class:
#1
20250240578
2025-07-24

MICRO-ELECTROMECHANICAL MICROPHONES AND METHODS OF FORMING THE SAME

#2
20220337958
2022-10-20

Micro-electro-mechanical acoustic transducer device with improved detection features and corresponding electronic apparatus

#3
20220153572
2022-05-19

FET BASED SENSORY SYSTEMS

#4
20200410973
2020-12-31

Solid-state transducer, system, and method

#5
20200314559
2020-10-01

Micro-electro-mechanical acoustic transducer device with improved detection features and corresponding electronic apparatus

#6
20200314513
2020-10-01

Foldable display device and sound providing method thereof

#7
20190306630
2019-10-03

MEMS device and process

#8
20190200119
2019-06-27

Directional microphone

#9
20190149926
2019-05-16

Diaphragm element arrangement and related method

#10
20190067608
2019-02-28

Transistor acoustic sensor element and method for manufacturing the same, acoustic sensor and portable device

#11
20190058936
2019-02-21

Microelectromechanical microphone

#12
20180352337
2018-12-06

MEMS sound transducer, MEMS microphone and method for providing a MEMS sound transducer

#13
20180279031
2018-09-27

Microphone and manufacture thereof

#14
20180186623
2018-07-05

FET based sensory systems

#15
20180103326
2018-04-12

Micro-electro-mechanical acoustic transducer device with improved detection features and corresponding electronic apparatus

#16
20180045684
2018-02-15

Analyzer system of sound generated in mills based on embedded systems and a microphone array

#17
20180020281
2018-01-18

In-the-ear automatic-noise-reduction devices, assemblies, components, and methods

#18
20170359658
2017-12-14

MEMS device and process

#19
20170311090
2017-10-26

Portless and membrane-free microphone

#20
20170280252
2017-09-28

Optical microphone system

#21
20170251290
2017-08-31

Display panel and preparation method therefor, and display device and health monitoring method thereof

#22
20170245077
2017-08-24

Absolute sensitivity of a MEMS microphone with capacitive and piezoelectric electrodes

#23
20170238099
2017-08-17

Electro-acoustic transducer

#24
20170180872
2017-06-22

Fluid diode loudspeaker

#25
20170135592
2017-05-18

Strain sensing element, having a first and second magnetic layer and a third layer that is antiferrimagnetic

#26
20170029267
2017-02-02

MEMS device and process

#27
20170026754
2017-01-26

MEMS component including a sound-pressure-sensitive diaphragm element and piezosensitive signal detection

#28
20170006385
2017-01-05

Audio sensing device and method of acquiring frequency information

#29
20160295333
2016-10-06

Entrained microphones

#30
20160295328
2016-10-06

Dual diaphragm microphone

#31
20160241965
2016-08-18

MEMS microphone and method for forming the same

#32
20160221821
2016-08-04

Method for improving manufacturability of cavity packages for direct top port MEMS microphone

#33
20160165356
2016-06-09

Condenser type electroacoustic transducer

#34
20160083246
2016-03-24

MEMS device and process

#35
20160066099
2016-03-03

MEMS microphone with low pressure region between diaphragm and counter electrode

#36
20160050506
2016-02-18

Audio sensing device and method of acquiring frequency information

#37
20160031700
2016-02-04

MICROELECTROMECHANICAL MICROPHONE

#38
20160014530
2016-01-14

Packaging concept to improve performance of a micro-electro mechanical (MEMS) microphone

#39
20150315013
2015-11-05

Micro-electrical-mechanical system (MEMS) microphone

#40
20150264462
2015-09-17

Capacitive transducer

#41
20150195659
2015-07-09

Interposer for MEMS-on-lid microphone

#42
20150175404
2015-06-25

MEMS device and process

#43
20150131820
2015-05-14

Micro-electro-mechanical acoustic transducer device with improved detection features and corresponding electronic apparatus

#44
20150115331
2015-04-30

Sensor using sensing mechanism having combined static charge and field effect transistor

#45
20150082901
2015-03-26

Strain sensing element, pressure sensor, microphone, blood pressure sensor, and touch panel

#46
20150055803
2015-02-26

Decimation synchronization in a microphone

#47
20150001647
2015-01-01

MEMS microphone with low pressure region between diaphragm and counter electrode

#48
20140270260
2014-09-18

SPEECH DETECTION USING LOW POWER MICROELECTRICAL MECHANICAL SYSTEMS SENSOR

#49
20140270259
2014-09-18

SPEECH DETECTION USING LOW POWER MICROELECTRICAL MECHANICAL SYSTEMS SENSOR

#50
20140232236
2014-08-21

Electrostatic transducer

#51
20130228937
2013-09-05

Micromechanical Sound Transducer Arrangement and a Corresponding Production Method

#52
20120175747
2012-07-12

MEMS device assembly and method of packaging same

#53
20110243350
2011-10-06

Low noise electret microphone

#54
20110150260
2011-06-23

Miniature non-directional microphone

#55
20110048138
2011-03-03

MEMS stress concentrating structure for MEMS sensors

#56
20110038492
2011-02-17

Optical sensing in a directional MEMS microphone

#57
20090079298
2009-03-26

Multi-cantilever MEMS sensor, manufacturing method thereof, sound source localization apparatus using the multi-cantilever MEMS sensor, sound source localization method using the sound source localization apparatus

#58
20080101641
2008-05-01

Miniature non-directional microphone

#59
20070165896
2007-07-19

Optical sensing in a directional MEMS microphone

#60
14505495
2016-02-23

Microelectro-mechanical systems (MEMS) microphone package device and MEMS packaging method thereof