ClassID:

220169

H03F2203/45728 - 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 LC comprising one switch

Recent Application in this class:
#1
20210021269
2021-01-21

Robust current sensing during inverse current load conditions

#2
20200098426
2020-03-26

Memory device

#3
20200076386
2020-03-05

Voltage output op-amp protection circuit

#4
20190207571
2019-07-04

Voltage output op-amp protection circuit

#5
20180026596
2018-01-25

Selectable programmable gain or operational amplifier

#6
20170054926
2017-02-23

Imaging apparatus and imaging system

#7
20160094193
2016-03-31

Selectable programmable gain or operational amplifier

#8
20150340991
2015-11-26

Multi-band power amplifier

#9
20150311895
2015-10-29

High performance reconfigurable voltage buffers

#10
20150200633
2015-07-16

Quick comparison circuit

#11
20150194115
2015-07-09

Output circuit, data driver, and display device

#12
20150084688
2015-03-26

Baseband processing circuitry

#13
20150077579
2015-03-19

Angular velocity sensor, and electronic apparatus using same

#14
20140197828
2014-07-17

Amplifier and signal processing device

#15
20140028395
2014-01-30

Op-Amp sharing by swapping trans-conductance cells

#16
20130265108
2013-10-10

Extremely high frequency dual-mode class AB power amplifier

#17
20130043948
2013-02-21

SEMICONDUCTOR DEVICE FOR SIGNAL AMPLIFICATION

#18
20130038394
2013-02-14

Operational amplifier

#19
20130009800
2013-01-10

Dual-mode comparator and analog to digital converter having the same

#20
20130009706
2013-01-10

Electronic device and method for an amplifier with resistive feedback

#21
20120218043
2012-08-30

Amplifier activation

#22
20120206201
2012-08-16

Semiconductor device

#23
20120127138
2012-05-24

Output circuit, data driver, and display device

#24
20120046004
2012-02-23

High performance transmitter preamplification chain with calibration feedback

#25
20110241780
2011-10-06

Amplifier circuit, signal processor circuit, and semiconductor integrated circuit device

#26
20110235831
2011-09-29

Drive device

#27
20110102085
2011-05-05

Differential amplifier

#28
20110018633
2011-01-27

Operational amplifier having DC offset cancellation capability

#29
20100311352
2010-12-09

Radio frequency unit analog level detector and feedback control system

#30
20100265273
2010-10-21

Operational amplifier, driver and display

#31
20100248648
2010-09-30

Amplifier circuit and transceiver

#32
20100231305
2010-09-16

Semiconductor device for signal amplification

#33
20100202499
2010-08-12

Wireless radio frequency signal transceiving system

#34
20100156683
2010-06-24

Amplifier circuit and A/D converter

#35
20100009639
2010-01-14

Radio frequency unit analog level detector and feedback control system

#36
20090289703
2009-11-26

Offset cancellation circuit and display device

#37
20090212862
2009-08-27

OP-AMP CIRCUIT AND OP-AMP CIRCUIT DRIVING METHOD

#38
20090085668
2009-04-02

Inductor sharing in radio frequency communications

#39
20090072904
2009-03-19

Variable gain amplifier having dual gain control

#40
20090072903
2009-03-19

Variable gain amplifier having variable gain DC offset loop

#41
20080024211
2008-01-31

Multi-operational amplifier system

#42
20070241820
2007-10-18

Drive circuit containing amplifier circuit

#43
20070120599
2007-05-31

Multi-operational amplifier system

#44
20070090873
2007-04-26

Offset canceller for compensating for offset in signal output

#45
20070085608
2007-04-19

Differential amplifier, digital-to-analog converter, and display device

#46
20070024367
2007-02-01

Operational amplifier and constant-current generation circuit using the same

#47
20070018079
2007-01-25

Light-receiving amplifier circuit and optical pick-up device using the same

#48
20060131701
2006-06-22

Use of a down-bond as a controlled inductor in integrated circuit applications

#49
20050162230
2005-07-28

Multi-operational amplifier system

#50
20050156667
2005-07-21

Differential amplifier

#51
20050134537
2005-06-23

Current amplifying circuit with stabilized output voltage and liquid crystal display including the same

#52
20050090223
2005-04-28

Use of a down-bond as a controlled inductor in integrated circuit applications

#53
20050088263
2005-04-28

High performance switch for switched inductor tuned RF circuit

#54
20050088262
2005-04-28

Tuning RF circuits using switched inductors provided in a monolithic integrated circuit

#55
20050085205
2005-04-21

Radio frequency unit analog level detector and feedback control system