ClassID:

219987

H03F2203/45364 - 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 AAC comprising multiple transistors parallel coupled at their gates and sources only, e.g. in a cascode dif amp, only those forming the composite common source transistor

Recent Application in this class:
#1
20150381401
2015-12-31

Switched capacitor transmitter circuits and methods

#2
20150381215
2015-12-31

Switched capacitor transmitter circuits and methods

#3
20150279467
2015-10-01

Amplifier stage

#4
20150022266
2015-01-22

Folded cascode amplifier

#5
20150015330
2015-01-15

Differential-to-single-end converter

#6
20140253234
2014-09-11

Differential power amplifier using mode injection

#7
20130135047
2013-05-30

Current sense amplifier having bipolar common mode input range

#8
20130135040
2013-05-30

Highly linear, low-power, transconductor

#9
20120262237
2012-10-18

Power amplifier device

#10
20110279181
2011-11-17

Common-mode feedback circuit

#11
20110241779
2011-10-06

Front-end equalizer and amplifier circuit

#12
20110210792
2011-09-01

Power amplifier device

#13
20100301941
2010-12-02

Receiver

#14
20100176849
2010-07-15

Closed loop surge protection technique for differential amplifiers

#15
20100033249
2010-02-11

DIFFERENTIAL AMPLIFIER

#16
20100001797
2010-01-07

Differential amplifier

#17
20090278602
2009-11-12

Closed loop surge protection technique for differential amplifiers

#18
20090201088
2009-08-13

Measuring load impedance of an amplifier driving a variable load

#19
20090108934
2009-04-30

Differential amplifier system

#20
20090045874
2009-02-19

Differential amplifier and input circuit using the same

#21
20080284489
2008-11-20

TRANSCONDUCTOR AND MIXER WITH HIGH LINEARITY

#22
20080272846
2008-11-06

Adaptive biasing input stage and amplifiers including the same

#23
20080261553
2008-10-23

RF input transconductor stage

#24
20080238546
2008-10-02

Fully differential class AB amplifier and amplifying method using single-ended, two-stage amplifier

#25
20080122538
2008-05-29

Wideband active balun circuit based on differential amplifier

#26
20080048780
2008-02-28

Linearization apparatus of triode region type operational transconductance amplifier

#27
20080036532
2008-02-14

Transmitter power amplifier working at different power supplies

#28
20080024218
2008-01-31

Amplifier stage, operational amplifier and method for amplifying a signal

#29
20070270111
2007-11-22

Dual power mode transmitter

#30
20070132511
2007-06-14

Amplifier and amplifier gain adjustment circuitry using current steering, and multimode communication device containing same

#31
20060250185
2006-11-09

Linear amplifier

#32
20060097787
2006-05-11

Gain adjusting and circuit arrangement