H03G9/00 - CPC Classification Index

ClassID:

220300 ⎘

H03G9/00 - CPC Classification

Classification description:

Combinations of two or more types of control, e.g. gain control and tone control

Sub-classes:

H03G9/005 » {of digital or coded signals} 349
H03G9/02 » in untuned amplifiers 15
H03G9/20 » in frequency-selective amplifiers 1
H03G9/26 » in untuned amplifying stages as well as in frequency-selective amplifying stages 0

Recent Application in this class:

20250046320

2025-02-06

DECODING APPARATUS AND METHOD, AND PROGRAM

20230245665

2023-08-03

Decoding apparatus and method, and program

20200265845

2020-08-20

Decoding apparatus and method, and program

20180321904

2018-11-08

Audio control system and related methods

20180213317

2018-07-26

Method and apparatus for adjusting sound field of an earphone and a terminal

20180211644

2018-07-26

Sound signal processing method and sound signal processing apparatus

20180197555

2018-07-12

Decoding apparatus and method, and program

20180166092

2018-06-14

Voice signal processing apparatus and voice signal processing method

20170374450

2017-12-28

Sound reproducing device

#10

20170162208

2017-06-08

System for perceived enhancement and restoration of compressed audio signals

#11

20150379999

2015-12-31

System for perceived enhancement and restoration of compressed audio signals

#12

20140301556

2014-10-09

Directional based audio response to an external environment emergency signal

#13

20140044271

2014-02-13

Progressive, targeted, and variable conference feedback tone

#14

20140044270

2014-02-13

Progressive, targeted, and variable conference feedback tone

#15

20120328115

2012-12-27

System for combining loudness measurements in a single playback mode

#16

20120250893

2012-10-04

Hybrid permanent/reversible dynamic range control system

#17

20110133840

2011-06-09

Pre and post filter automatic gain control with bounded pre-filter gain control

#18

20100287517

2010-11-11

Statistical static timing analysis in non-linear regions

#19

20100286988

2010-11-11

Hybrid Permanent/Reversible Dynamic Range Control System

#20

20100219909

2010-09-02

Harmonic suppressing circuit

#21

20100204995

2010-08-12

Compander which uses adaptive pre-emphasis filtering on the basis of linear prediction

#22

20100086149

2010-04-08

ACOUSTIC PROCESSING SYSTEM AND METHOD FOR ELECTRONIC APPARATUS AND MOBILE TELEPHONE TERMINAL