ClassID:

219817

H03F2203/45024 - 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 differential amplifier amplifying transistors are cascode coupled transistors

Recent Application in this class:
#1
20260155796
2026-06-04

DIFFERENTIAL AMPLIFICATION SYSTEM

#2
20260106582
2026-04-16

OPERATIONAL AMPLIFIER WITH BUILT-IN CAPACITOR MULTIPLIER

#3
20260088784
2026-03-26

COMMON-MODE STABILIZATION OF HIGH-FREQUENCY DIFFERENTIAL DISTRIBUTED DRIVER AMPLIFIER

#4
20250385647
2025-12-18

TWO-STAGE AMPLIFIER WITH FEEDFORWARD STAGE FOR ENHANCED RECEIVER PERFORMANCE

#5
20250233565
2025-07-17

CHIP WITH CASCODE CIRCUITS

#6
20250233563
2025-07-17

COMMON-GATE AMPLIFYING ARRANGEMENT

#7
20250038721
2025-01-30

DUAL OUTPUT AMPLIFIER FOR PRECISION RESISTOR CALIBRATION SYSTEM

#8
20240429887
2024-12-26

OPERATIONAL TRANSCONDUCTANCE AMPLIFIER WITH BOOSTED TRANSCONDUCTANCE

#9
20240171142
2024-05-23

RF AMPLIFIER OF ACCURATE BIAS AND HEALTHY HEADROOM AND METHOD THEREOF

#10
20230134681
2023-05-04

APPARATUS AND METHODS FOR RADIO FREQUENCY AMPLIFIERS

#11
20230107607
2023-04-06

CURRENT CONDITIONING APPARATUS WITH NFET CURRENT MIRROR

#12
20220200552
2022-06-23

Semiconductor device

#13
20210320634
2021-10-14

Amplifiers suitable for mm-wave signal splitting and combining

#14
20200321931
2020-10-08

Amplifiers suitable for mm-wave signal splitting and combining

#15
20200259466
2020-08-13

Amplifier

#16
20200195199
2020-06-18

Configurable switched power amplifier for efficient high/low output power

#17
20200099338
2020-03-26

Circuits for modulated-mixer-clock multi-branch receivers

#18
20200083847
2020-03-12

SYSTEM AND METHOD FOR BIASING AN AMPLIFIER

#19
20200059212
2020-02-20

Offset addition circuits for sense transistors

#20
20200014347
2020-01-09

Servo-amplifier with closed-loop biasing

#21
20190334487
2019-10-31

Amplifier

#22
20190288654
2019-09-19

Amplifier with hysteresis

#23
20190280656
2019-09-12

Amplifier

#24
20190149093
2019-05-16

AMPLIFIER WITH CONSTANT VOLTAGE GAIN

#25
20190059755
2019-02-28

Digital biopotential acquisition system having 8 channels

#26
20180241359
2018-08-23

Amplifier, filter, communication apparatus and network node

#27
20180191312
2018-07-05

Amplifier

#28
20170324387
2017-11-09

Input feed-forward technique for class AB amplifier

#29
20170230008
2017-08-10

Amplifier

#30
20160173044
2016-06-16

Low power operational transconductance amplifier

#31
20160043697
2016-02-11

Front-end matching amplifier

#32
20150311876
2015-10-29

Amplifiers and related biasing methods and devices

#33
20150303876
2015-10-22

Differential cascode amplifier with selectively coupled gate terminals

#34
20150263691
2015-09-17

Amplifier, driving method for amplifier, and electronic circuit system

#35
20150214897
2015-07-30

Family of slew-enhanced operational transconductance amplifiers

#36
20150123736
2015-05-07

Wideband driver amplifier

#37
20140354359
2014-12-04

High-frequency signal processing device

#38
20130113563
2013-05-09

Gain enhancement for cascode structure

#39
20120098606
2012-04-26

High-frequency signal processing device

#40
20120049956
2012-03-01

Amplifiers and related biasing methods and devices

#41
20120013417
2012-01-19

Center-tapped inductor balun

#42
20110001173
2011-01-06

Monolithically integrated antenna and receiver circuit for the detection of terahertz waves

#43
20100329158
2010-12-30

RF single-ended to differential converter

#44
20100289028
2010-11-18

Display device

#45
20100289027
2010-11-18

Electronic device, constituted by using thin-film transistors

#46
20090009247
2009-01-08

Differential amplifier and sampling and holding circuit

#47
20080186096
2008-08-07

System and method for distortion cancellation in amplifiers

#48
20080150636
2008-06-26

Differential amplifier with a plurality of input pairs

#49
20080106335
2008-05-08

Differential circuit

#50
20080061878
2008-03-13

Differential amplifier and sampling and holding circuit

#51
20080042152
2008-02-21

Electronic device, display device, interface circuit and differential amplification device, which are constituted by using thin-film transistors

#52
20060202760
2006-09-14

Controllable amplifier and the use thereof

#53
20060119436
2006-06-08

High linearity digital variable gain amplifier

#54
20060114065
2006-06-01

High linearity digital variable gain amplifier

#55
20050110575
2005-05-26

Gain stabilization technique for narrow band integrated low noise amplifiers

#56
20050057305
2005-03-17

Radio frequency low noise amplifier with automatic gain control

#57
15213718
2018-07-03

Frequency enhanced active transistor

#58
14668832
2016-08-09

Apparatus and methods for a cascode amplifier topology for millimeter-wave power application