ClassID:

219954

H03F2203/45298 - 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 one or more combinations of discrete capacitor and resistor elements, e.g. active elements using a transistor as a capacitor or as a resistor

Recent Application in this class:
#1
20220239265
2022-07-28

Differential amplifier circuitry

#2
20220231643
2022-07-21

Differential amplifier circuitry

#3
20200412301
2020-12-31

Power efficient amplifier

#4
20200389137
2020-12-10

Differential amplifier circuitry

#5
20200373895
2020-11-26

Programmable Gain Amplifier

#6
20200373889
2020-11-26

Programmable amplifiers

#7
20200287509
2020-09-10

OPERATIONAL AMPLIFIER

#8
20180212572
2018-07-26

Class AB amplifier having cascode stage with filter for improving linearity

#9
20160070123
2016-03-10

Optical modulator driver

#10
20150381115
2015-12-31

Emphasis circuit

#11
20130215954
2013-08-22

Analog signal current integrators with tunable peaking function

#12
20130057344
2013-03-07

DIFFERENTIAL RF AMPLIFIER

#13
20130021097
2013-01-24

Inductive-element feedback-loop compensator

#14
20110109388
2011-05-12

Differential RF amplifier

#15
20100323655
2010-12-23

Common-gate common-source transconductance stage for RF downconversion mixer

#16
20070146071
2007-06-28

Common-gate common-source transconductance stage for RF downconversion mixer

#17
20060001486
2006-01-05

Bias circuit for high frequency amplifiers

#18
20050134390
2005-06-23

Bias circuit for high frequency amplifiers

#19
20050110555
2005-05-26

Amplifier and frequency converter

#20
20050077962
2005-04-14

Interface circuit for connecting to an output of a frequency converter

#21
16666085
2020-09-01

Differential crystal oscillator

#22
16215603
2020-01-28

High-speed low VT drift receiver

#23
16143123
2020-07-07

High-speed low VT drift receiver