ClassID:

220114

H03F2203/45618 - 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 only one switch

Recent Application in this class:
#1
20190131935
2019-05-02

Circuit having high-pass filter with variable corner frequency

#2
20170054926
2017-02-23

Imaging apparatus and imaging system

#3
20150381129
2015-12-31

Variable gain transimpedance amplifier

#4
20150214897
2015-07-30

Family of slew-enhanced operational transconductance amplifiers

#5
20150194115
2015-07-09

Output circuit, data driver, and display device

#6
20150084688
2015-03-26

Baseband processing circuitry

#7
20140225670
2014-08-14

Method and apparatus for correcting asymmetry of an input signal of an amplifier

#8
20140111444
2014-04-24

Feedback integrator current source, transistor, and resistor coupled to input

#9
20130335167
2013-12-19

De-noise circuit and de-noise method for differential signals and chip for receiving differential signals

#10
20130241653
2013-09-19

Instrumentation input systems

#11
20130215954
2013-08-22

Analog signal current integrators with tunable peaking function

#12
20130214864
2013-08-22

Signal amplifying circuit of communication device

#13
20130147553
2013-06-13

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

#14
20130127526
2013-05-23

Low noise auto-zero circuits for amplifiers

#15
20130106521
2013-05-02

Operational amplifying device

#16
20120218043
2012-08-30

Amplifier activation

#17
20120206197
2012-08-16

Differential amplifying apparatus

#18
20120161844
2012-06-28

Flexible low noise, high linearity, high frequency, low power, fully differential mixer and class AB post-mixer amplifier system for SDR applications

#19
20120146721
2012-06-14

Voltage detection circuit

#20
20120127138
2012-05-24

Output circuit, data driver, and display device

#21
20120126889
2012-05-24

Low distortion variable gain amplifier (VGA)

#22
20120086513
2012-04-12

Instrumentation input systems

#23
20120086508
2012-04-12

Circuit for thermal protection in audio power amplifier and method thereof

#24
20110158435
2011-06-30

Audio signal amplifier circuit

#25
20110157146
2011-06-30

Display driver circuit

#26
20110140945
2011-06-16

Gain circuit

#27
20110133970
2011-06-09

Multipath amplifier

#28
20110074508
2011-03-31

Voltage regulator operable to switch between a two-stage structure operation and a three-stage structure operation

#29
20110018633
2011-01-27

Operational amplifier having DC offset cancellation capability

#30
20110001649
2011-01-06

Differential chopper comparator and A/D converter including the same

#31
20100271128
2010-10-28

Composite differential RF power amplifier layout

#32
20100265273
2010-10-21

Operational amplifier, driver and display

#33
20100060324
2010-03-11

Voltage/current conversion circuit

#34
20100007419
2010-01-14

Instrumentation input systems

#35
20090289930
2009-11-26

Operational amplifier circuit and display panel driving apparatus

#36
20090289703
2009-11-26

Offset cancellation circuit and display device

#37
20090179670
2009-07-16

PERFORMANCE INVERSION DETECTION CIRCUIT AND A DESIGN STRUCTURE FOR THE SAME

#38
20090108929
2009-04-30

Apparatuses and methods for providing offset compensation for operational amplifier

#39
20090009246
2009-01-08

Electronic circuit

#40
20080150858
2008-06-26

Display driver circuit

#41
20080074198
2008-03-27

Photoreceiver/amplifier circuit, optical pickup device, and optical disk device

#42
20080048773
2008-02-28

Method and apparatus for DC offset cancellation in amplifiers

#43
20080024211
2008-01-31

Multi-operational amplifier system

#44
20070279129
2007-12-06

Methods and apparatus to provide slew enhancement for low power amplifiers

#45
20070222506
2007-09-27

Op driver with the function of canceling op offset

#46
20070120599
2007-05-31

Multi-operational amplifier system

#47
20070024377
2007-02-01

Impedance matching techiques for multi-band or wideband RF amplifiers and associated amplifier designs

#48
20070018079
2007-01-25

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

#49
20050174175
2005-08-11

Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit

#50
20050162230
2005-07-28

Multi-operational amplifier system