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ClassID:

219820 ⎘

H03F2203/45031 - 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 compositions of multiple transistors

Recent Application in this class:
#1
20200007089
2020-01-02

Low noise differential amplifier

 #2
20190386622
2019-12-19

Differential amplifier including cancellation capacitors

 #3
20190339730
2019-11-07

Power-cycling voltage reference

 #4
20190334490
2019-10-31

Differential amplifier including cancellation capacitors

 #5
20190294295
2019-09-26

APPARATUS AND METHOD FOR REDUCING AMPLIFIER FEEDBACK CAPACITOR WITH BYPASS AMPLIFICATION STAGE

 #6
20190273471
2019-09-05

Low noise differential amplifier

 #7
20190229684
2019-07-25

System and method for reducing output harmonics

 #8
20190097593
2019-03-28

Offset cancellation scheme

 #9
20180152156
2018-05-31

Operational amplifier and differential amplifying circuit thereof

 #10
20180115289
2018-04-26

Low voltage supply amplifier

 #11
20150091645
2015-04-02

ENVELOPE TRACKING POWER TRANSMITTER USING COMMON-GATE VOLTAGE MODULATION LINEARIZER

 #12
20090284316
2009-11-19

Amplifier device

 #13
20090207063
2009-08-20

Variable passive components with high resolution value selection and control

 #14
20080180294
2008-07-31

Variable passive components with high resolution value selection and control

 #15
20070210870
2007-09-13

Transconductance stage providing gain control

 #16
20070194813
2007-08-23

Variable passive components with high resolution value selection and control

 #17
20060119436
2006-06-08

High linearity digital variable gain amplifier

 #18
20060114065
2006-06-01

High linearity digital variable gain amplifier

 #19
15895829
2019-03-26

Self-biased operational transconductance amplifier-based reference circuit