ClassID:

219990

H03F2203/45371 - 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 parallel coupled multiple transistors at their source and gate and drain or at their base and emitter and collector, e.g. in a cascode dif amp, only those forming the composite common source transistor or the composite common emitter transistor respectively

Recent Application in this class:
#1
20170332973
2017-11-23

Multichannel ultra-low noise amplifier

#2
20150146884
2015-05-28

Circuit for suppressing audio output noise and audio output circuit

#3
20140197888
2014-07-17

Hybrid amplifier

#4
20120264391
2012-10-18

RF-demodulator, calibration circuitry and methods for calibrating an RF-demodulator

#5
20120235746
2012-09-20

Amplifier

#6
20120133430
2012-05-31

Offset cancellation for audio amplifier

#7
20120081180
2012-04-05

Layout method for differential amplifier and layout using the same

#8
20110175759
2011-07-21

OPERATIONAL AMPLIFIER AND PIPELINE AD CONVERTER

#9
20100289028
2010-11-18

Display device

#10
20100289027
2010-11-18

Electronic device, constituted by using thin-film transistors

#11
20100188151
2010-07-29

Operational amplifier and pipeline AD converter

#12
20100127782
2010-05-27

Common centroid electrostatic discharge protection for integrated circuit devices

#13
20090237163
2009-09-24

Trimming technique for high voltage amplifiers using floating low voltage structures

#14
20090085788
2009-04-02

Multi-input operational amplifier circuit, digital/analog converter using same, and driver for display device using same

#15
20080315950
2008-12-25

Integrated Circuit Amplifiers Having Switch Circuits Therein that Provide Reduced 1/f Noise

#16
20080272843
2008-11-06

Integrated Amplifier Circuit

#17
20080238547
2008-10-02

Offset canceling circuit and offset canceling method

#18
20080211705
2008-09-04

Electronic network circuit with dissymmetrical differential pairs

#19
20080068085
2008-03-20

Wide input common mode for input bias current cancellation

#20
20080057883
2008-03-06

Power control for a dual mode transmitter

#21
20080042152
2008-02-21

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

#22
20080029753
2008-02-07

Configurable circuits using phase change switches

#23
20070270111
2007-11-22

Dual power mode transmitter

#24
20070252652
2007-11-01

Dual op amp IC with single low noise op amp configuration

#25
20070217544
2007-09-20

Power management in a data acquisition system

#26
20070196959
2007-08-23

Thin film transistor circuit and display utilizing the same

#27
20070109058
2007-05-17

Differential amplifier, differential amplifying method, and phase locked loop and delay locked loop using the same

#28
20070096813
2007-05-03

Differential circuit with improved linearity

#29
20070090876
2007-04-26

Apparatus for variable gain amplifiers and mixers

#30
20070018726
2007-01-25

Differential circuit, output buffer circuit and semiconductor integrated circuit for a multi-power system

#31
20060214689
2006-09-28

Differential output driver and semiconductor device having the same

#32
20060055445
2006-03-16

Multi-standard amplifier

#33
20060012429
2006-01-19

Self biased differential amplifier

#34
20050195032
2005-09-08

Differential amplifier with large input common mode signal range

#35
20050156661
2005-07-21

Filter apparatus including differential slave gm-C filter with frequency characteristics automatically tuned by master circuit

#36
20050099233
2005-05-12

Differential amplifier arrangement with current regulating circuit and method for operating a differential amplifier arrangement

#37
20050012703
2005-01-20

Thin film transistor circuit and semiconductor display device using the same