ClassID:

219384

H03F3/45282 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using BiFET transistors as the active amplifying circuit Long tailed pairs

Sub-classes:
Recent Application in this class:
#1
20240275350
2024-08-15

VARIABLE GAIN AMPLIFIER CIRCUIT

#2
20170033795
2017-02-02

Driver circuit

#3
20160315589
2016-10-27

Low power feed forward amplifier

#4
20160308501
2016-10-20

Electronic device for a radiofrequency signal reception chain, comprising a low-noise transimpedance amplifier stage

#5
20150381172
2015-12-31

Driver circuit

#6
20140284458
2014-09-25

Light receiving circuit and photocoupler

#7
20130241653
2013-09-19

Instrumentation input systems

#8
20130169363
2013-07-04

Body biasing device and operational amplifier thereof

#9
20130141474
2013-06-06

Voltage summing buffer, digital-to-analog converter and source driver of display device including the same

#10
20120086513
2012-04-12

Instrumentation input systems

#11
20110001173
2011-01-06

Monolithically integrated antenna and receiver circuit for the detection of terahertz waves

#12
20100289028
2010-11-18

Display device

#13
20100289027
2010-11-18

Electronic device, constituted by using thin-film transistors

#14
20100237910
2010-09-23

High-speed, low-power driver system

#15
20100052778
2010-03-04

Norder tunable low-pass continuous time filter for fiber optic receivers

#16
20100007419
2010-01-14

Instrumentation input systems

#17
20090284316
2009-11-19

Amplifier device

#18
20090201087
2009-08-13

Differential input amplifier

#19
20080042152
2008-02-21

Electronic device, display device, interface circuit and differential amplification device, which are constituted by using thin-film transistors

#20
20060033571
2006-02-16

Differential gain stage for low voltage supply

#21
20050035817
2005-02-17

Method and corresponding circuit structure to correlate the transconductance of transistors of different types