ClassID:

219917

H03F2203/45224 - 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 One output of the differential amplifier being taken into consideration

Recent Application in this class:
#1
20200052664
2020-02-13

MATRIX POWER AMPLIFIER

#2
20190288651
2019-09-19

Matrix power amplifier

#3
20190131462
2019-05-02

Pseudo-resistor structure, a closed-loop operational amplifier circuit and a bio-potential sensor

#4
20180358941
2018-12-13

Capacitive loading mode measurement circuit with compensation of measurement errors due to parasitic sensor impedances

#5
20180248520
2018-08-30

Circuit system

#6
20180097484
2018-04-05

Matrix power amplifier

#7
20170005633
2017-01-05

Trans-impedance amplifier with replica gain control

#8
20160365859
2016-12-15

Wideband highly-linear low output impedance D2S buffer circuit

#9
20160164517
2016-06-09

High gain load circuit for a differential pair using depletion mode transistors

#10
20160149548
2016-05-26

Trans-impedance amplifier with replica gain control

#11
20160079943
2016-03-17

Two differential amplifier configuration

#12
20150244328
2015-08-27

PPA linearization

#13
20150087991
2015-03-26

Application specific integrated circuit with column-row-parallel architecture for ultrasonic imaging

#14
20110140738
2011-06-16

Multi-Phase Integrators in Control Systems

#15
20100052783
2010-03-04

Class-D amplifier

#16
20090289930
2009-11-26

Operational amplifier circuit and display panel driving apparatus

#17
20090256636
2009-10-15

Amplifier arrangement and method for signal amplification

#18
20080164945
2008-07-10

Simple operational amplifiers circuit and alternative circuit of latch circuit

#19
20080150628
2008-06-26

Low distortion class-D amplifier

#20
20080111587
2008-05-15

INPUT RECEIVER WITH NEGATIVE VOLTAGE GENERATOR AND RELATED METHOD

#21
20080061877
2008-03-13

Common mode regulation for thermal tail compensation

#22
20080054162
2008-03-06

Optical semiconductor device having a shield wire and optical pickup device having a shield wire

#23
20070290741
2007-12-20

Technique to improve the gain and signal to noise ratio in CMOS switched capacitor amplifiers

#24
20070222510
2007-09-27

System and method for operating a feedback network

#25
20070182482
2007-08-09

Technique to improve the gain and signal to noise ratio in CMOS switched capacitor amplifiers

#26
20070030059
2007-02-08

Technique to improve the gain and signal to noise ratio in CMOS switched capacitor amplifiers