ClassID:

220079

H03F2203/45548 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to differential amplifiers the IC comprising one or more capacitors as shunts to earth or as short circuit between inputs

Recent Application in this class:
#1
20210058047
2021-02-25

Isolation amplification circuit with improved common mode rejection

#2
20200059213
2020-02-20

Amplifier circuit and transimpedance amplifier circuit

#3
20190131462
2019-05-02

Pseudo-resistor structure, a closed-loop operational amplifier circuit and a bio-potential sensor

#4
20180367171
2018-12-20

Linearization of a radiofrequency-signal transmission chain

#5
20180316323
2018-11-01

Amplifier

#6
20180287559
2018-10-04

Circuits for wireless communication on multiple frequency bands

#7
20180249962
2018-09-06

Seismocardiography

#8
20160142016
2016-05-19

Operational amplifier based circuit with compensation circuit block used for stability compensation

#9
20160006403
2016-01-07

Multistage amplifier circuit with improved settling time

#10
20150171806
2015-06-18

Differential amplifying circuit and microphone/amplifier system

#11
20150150753
2015-06-04

Instrumentation absolute value differential amplifier circuit and applications

#12
20140153619
2014-06-05

Repartitioned transceiver using silicon-on-insulator

#13
20140132342
2014-05-15

Amplifier circuit and feedback circuit

#14
20130271216
2013-10-17

High side current sense amplifier

#15
20130241653
2013-09-19

Instrumentation input systems

#16
20130116577
2013-05-09

Biomedical acquisition system with motion artifact reduction

#17
20130113549
2013-05-09

Variable capacitor circuit and method

#18
20130088291
2013-04-11

Combined filter and transconductance amplifier

#19
20130082684
2013-04-04

Voltage monitor

#20
20130057341
2013-03-07

Amplifier circuit and feedback circuit

#21
20130043934
2013-02-21

Analog floating gate charge loss compensation circuitry and method

#22
20120293263
2012-11-22

Operational amplifier

#23
20120086513
2012-04-12

Instrumentation input systems

#24
20110316628
2011-12-29

Complimentary single-ended-input OTA-C universal filter structures

#25
20110169568
2011-07-14

Operational amplifier

#26
20110158435
2011-06-30

Audio signal amplifier circuit

#27
20110140785
2011-06-16

CMOS amplifier with integrated tunable band-pass function

#28
20100327940
2010-12-30

Embedded phase noise measurement system

#29
20100259331
2010-10-14

High-linearity low noise amplifier

#30
20100253436
2010-10-07

Amplifier

#31
20100007419
2010-01-14

Instrumentation input systems

#32
20090289714
2009-11-26

Operational amplifier

#33
20090274319
2009-11-05

AUDIO AMPLIFIER

#34
20090237165
2009-09-24

Cross-coupled low noise amplifier for cellular applications

#35
20090186592
2009-07-23

RADIO RECEIVER AND RECEIVING SEMICONDUCTOR INTEGRATED CIRCUIT

#36
20090102562
2009-04-23

Cross-coupled low noise amplifier for cellular applications

#37
20080258776
2008-10-23

ANALOG SIGNAL TRANSMISSION CIRCUIT

#38
20080024222
2008-01-31

Voltage level shifting circuit, a differential input stage circuit, and a method for providing a level shifted differential signal to a differential input buffer circuit

#39
20080018394
2008-01-24

Operational amplifier and method for canceling offset voltage of operational amplifier

#40
20070257712
2007-11-08

Low Current, High Gain, Single to Differential Buffer

#41
20070252648
2007-11-01

Operational amplifier

#42
20070176675
2007-08-02

Differential amplifier and digital-to-analog converter

#43
20070075769
2007-04-05

Circuit configuration having a feedback operational amplifier

#44
20070058438
2007-03-15

Differential amplifier circuit and semiconductor device

#45
20070024369
2007-02-01

Current-controlled CMOS (C3MOS) wideband input data amplifier for reduced differential and common-mode reflection

#46
20060276159
2006-12-07

Low noise amplifier with constant input impedance

#47
20060202750
2006-09-14

Operational amplifier and method for canceling offset voltage of operational amplifier

#48
20060071712
2006-04-06

Variable gain amplifier

#49
20060054790
2006-03-16

Amplifier configuration with noise reduction for a photodiode

#50
20060033508
2006-02-16

Linear capacitance measurement and touchless switch

#51
20050208921
2005-09-22

Low noise amplifier with constant input impedance

#52
20050206450
2005-09-22

AC differential amplifier with reduced low corner frequency