H03F2203/45562 - CPC Classification Index

ClassID:

220086 ⎘

H03F2203/45562 - 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 a cross coupling circuit, e.g. comprising two cross-coupled transistors

Recent Application in this class:

20230208374

2023-06-29

Current feedback amplifier

20190097587

2019-03-28

Voltage-to-current converters

20180337660

2018-11-22

Impedance converter to achieve negative capacitance and/or negative inductance for radio frequency front end matching

20180269839

2018-09-20

Amplifier with nonlinearity compensation

20180006619

2018-01-04

Radio frequency system switching power amplifier systems and methods

20170346456

2017-11-30

Active RC filters

20170033795

2017-02-02

Driver circuit

20170026004

2017-01-26

Off-state isolation enhancement for feedback amplifiers

20160126898

2016-05-05

Apparatus and methods for reducing input bias current of an electronic circuit

#10

20160126896

2016-05-05

Transformer feedback amplifier

#11

20160065398

2016-03-03

Communication over a voltage isolation barrier

#12

20160065317

2016-03-03

Methods and circuitry to trim common mode transient control circuitry

#13

20160065156

2016-03-03

Methods and circuitry to provide common mode transient immunity

#14

20150381172

2015-12-31

Driver circuit

#15

20150381129

2015-12-31

Variable gain transimpedance amplifier

#16

20150349729

2015-12-03

Amplifier circuit, bi-stage amplifier circuit, multi-stage amplifier circuit, RF-amplifier circuit, receiver section, RF-transceiver, and integrated circuit

#17

20150349721

2015-12-03

Neutralization of parasitic capacitance using MOS device

#18

20150340991

2015-11-26

Multi-band power amplifier

#19

20150214900

2015-07-30

Dual feedback low noise amplifier

#20

20150194115

2015-07-09

Output circuit, data driver, and display device

#21

20140375386

2014-12-25

Low-noise amplifier circuit

#22

20140340148

2014-11-20

Variable gain amplifier

#23

20140312971

2014-10-23

Differential amplifier circuit

#24

20140292410

2014-10-02

Folded cascode amplifier circuit

#25

20140266440

2014-09-18

Offset cancellation with minimum noise impact and gain-bandwidth degradation

#26

20140253234

2014-09-11

Differential power amplifier using mode injection

#27

20140203872

2014-07-24

Low-noise amplifier, receiver, method and computer program

#28

20140125417

2014-05-08

Systems and methods for boosting a received AC signal using a power amplifier including phase conditioners

#29

20130314156

2013-11-28

Variable gain amplifier

#30

20130307620

2013-11-21

Signal amplifying circuit with reduced output signal noise by introducing coupling effect and related method thereof

#31

20130271219

2013-10-17

Apparatus and methods for frequency compensation of an amplifier

#32

20130187620

2013-07-25

Power efficient transconductance amplifier apparatus and systems

#33

20130147556

2013-06-13

Squelch detection method and circuit using rectifying circuit for detecting out-of-band signal

#34

20130147555

2013-06-13

Squelch detection method and circuit using dual rectifying circuit for detecting out-of-band signal

#35

20130147553

2013-06-13

Auto-zero amplifier and feedback amplifier circuit using the auto-zero amplifier

#36

20130113566

2013-05-09

Variable gain amplifier

#37

20130099862

2013-04-25

Linearization of broadband power amplifiers

#38

20130063210

2013-03-14

High speed amplifier

#39

20130049845

2013-02-28

Differential integrated input circuit

#40

20130002636

2013-01-03

LCD driving circuit using operational amplifier and LCD display apparatus using the same

#41

20120235745

2012-09-20

Variable gain amplifier

#42

20120161880

2012-06-28

Techniques on input transformer to push the OP1dB higher in power amplifier design

#43

20120127138

2012-05-24

Output circuit, data driver, and display device

#44

20120007674

2012-01-12

POWER AMPLIFIER REDUCING GAIN MISMATCH

#45

20110193627

2011-08-11

Method and amplifier for cancelling magnetic coupling

#46

20110181353

2011-07-28

TWO-CHANNEL OPERATIONAL AMPLIFIER CIRCUIT

#47

20110140785

2011-06-16

CMOS amplifier with integrated tunable band-pass function

#48

20110074505

2011-03-31

Offset voltage calibration method and apparatus and amplifier thereof

#49

20110050340

2011-03-03

System and method for amplifying a signal using multiple amplification stages sharing a common bias current

#50

20110032233

2011-02-10

LCD driving circuit using operational amplifier and LCD display apparatus using the same

#51

20100308914

2010-12-09

Low noise amplifier

#52

20100265273

2010-10-21

Operational amplifier, driver and display

#53

20100066577

2010-03-18

Delta-sigma analog-to-digital converter

#54

20100060324

2010-03-11

Voltage/current conversion circuit

#55

20080272849

2008-11-06

Active baluns

#56

20080036535

2008-02-14

Amplifying circuit of semiconductor integrated circuit

#57

20070222514

2007-09-27

Differential difference amplifier

#58

20060290427

2006-12-28

Low voltage operational amplifier

#59

20060232349

2006-10-19

Integrated circuit arrangement