Patents-Review.com
ClassID:

220309 ⎘

H03G9/14 - CPC Classification

Classification description:

Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for gain control and tone control

Sub-classes:
Recent Application in this class:
#1
20210337310
2021-10-28

System and method for digital signal processing

 #2
20210021247
2021-01-21

Methods and apparatus for adjusting a level of an audio signal

 #3
20200186113
2020-06-11

Volume adjusting method and mobile terminal

 #4
20200067473
2020-02-27

Methods and apparatus for adjusting a level of an audio signal

 #5
20200007983
2020-01-02

System and method for digital signal processing

 #6
20190379977
2019-12-12

Systems and methods for generating haptic output for enhanced user experience

 #7
20190379976
2019-12-12

Systems and methods for using multiple actuators for enhanced user experience

 #8
20190379342
2019-12-12

Systems and methods using predictive analysis of audio signal to generate haptic data for enhanced user experience

 #9
20190378383
2019-12-12

Systems and methods for transient processing of an audio signal for enhanced haptic experience

 #10
20190115896
2019-04-18

Methods and apparatus for adjusting a level of an audio signal

 #11
20190115895
2019-04-18

Methods and apparatus for adjusting a level of an audio signal

 #12
20190115894
2019-04-18

Methods and apparatus for adjusting a level of an audio signal

 #13
20190115893
2019-04-18

Methods and apparatus for adjusting a level of an audio signal

 #14
20190115892
2019-04-18

Methods and apparatus for adjusting a level of an audio signal

 #15
20190115891
2019-04-18

Methods and apparatus for adjusting a level of an audio signal

 #16
20190115890
2019-04-18

Methods and apparatus for adjusting a level of an audio signal

 #17
20190115889
2019-04-18

Methods and apparatus for adjusting a level of an audio signal

 #18
20190115888
2019-04-18

Methods and apparatus for adjusting a level of an audio signal

 #19
20190115887
2019-04-18

Methods and apparatus for adjusting a level of an audio signal

 #20
20180294789
2018-10-11

Vehicle engine sound management

 #21
20180255396
2018-09-06

System and method for digital signal processing

 #22
20180102133
2018-04-12

SYSTEM AND METHOD FOR NARROW BANDWIDTH DIGITAL SIGNAL PROCESSING

 #23
20180084325
2018-03-22

High fidelity, professional grade microphone system for direct coupling to recording components

 #24
20170346460
2017-11-30

Adjusting dynamic range of an audio signal based on one or more dynamic equalization and/or dynamic range control parameters

 #25
20170257073
2017-09-07

Vehicle engine sound management

 #26
20170201221
2017-07-13

Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal

 #27
20170078794
2017-03-16

System and method for digital signal processing

 #28
20170005634
2017-01-05

Method and device for playing modified audio signals

 #29
20160344361
2016-11-24

System and method for digital signal processing

 #30
20160248393
2016-08-25

Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal

 #31
20160240208
2016-08-18

System and method for narrow bandwidth digital signal processing

 #32
20160192071
2016-06-30

ACOUSTIC DEVICE, ACOUSTIC PROCESSING METHOD, AND ACOUSTIC PROCESSING PROGRAM

 #33
20150280678
2015-10-01

Method and apparatus for identifying audio accessory through two pin connection in a two way radio

 #34
20140205111
2014-07-24

Sound processing apparatus, method, and program

 #35
20140191804
2014-07-10

Variable gain amplifier

 #36
20130279708
2013-10-24

Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal

 #37
20120328115
2012-12-27

System for combining loudness measurements in a single playback mode

 #38
20120180620
2012-07-19

Tone control apparatus

 #39
20120163629
2012-06-28

Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal

 #40
20110206224
2011-08-25

Audio system configured to fade audio outputs and method thereof

 #41
20100226513
2010-09-09

Audio circuit

 #42
20090274322
2009-11-05

Volume Control Apparatus and Method

 #43
20080013751
2008-01-17

VOLUME DEPENDENT AUDIO FREQUENCY GAIN PROFILE

 #44
20080008311
2008-01-10

Methods and apparatus for improving voice quality in an environment with noise

 #45
20070291959
2007-12-20

Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal

 #46
20060181640
2006-08-17

Adaptive signal weighting system

 #47
20050207583
2005-09-22

Audio enhancement system

 #48
15043516
2017-02-07

Electrolarynx control button arrangement