ClassID:

220098

H03F2203/45586 - 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 IC comprising offset generating means

Recent Application in this class:
#1
20190305730
2019-10-03

Gain amplifier for reducing inter-channel error

#2
20190020320
2019-01-17

Transimpedance amplifier (TIA) circuit having reduced power consumption, improved linearization and reduced peaking

#3
20170250661
2017-08-31

Switched-capacitor input circuit, switched-capacitor amplifier, and switched-capacitor voltage comparator

#4
20160100243
2016-04-07

Headset amplification circuit with error voltage suppression

#5
20160071453
2016-03-10

Differential amplifier and display driver including the same

#6
20150116003
2015-04-30

Differential amplifier and dual mode comparator using the same

#7
20140070887
2014-03-13

Impedance compensation for operational amplifiers used in variable environments

#8
20130043943
2013-02-21

Gain stage with DC offset compensation and method thereof

#9
20120308052
2012-12-06

Microphone assembly

#10
20120218043
2012-08-30

Amplifier activation

#11
20120169421
2012-07-05

Audio amplifying circuit with improved noise performance

#12
20120153991
2012-06-21

Comparator with offset compensation and improved dynamic range

#13
20120139634
2012-06-07

Circuitry including matched transistor pairs

#14
20120121106
2012-05-17

Distortion suppression in high-level capable audio amplification circuit

#15
20120068765
2012-03-22

Method for offset compensation of a switched-capacitor amplifier and switched capacitor amplifier arrangement

#16
20120032722
2012-02-09

Offset calibration for amplifiers

#17
20110140773
2011-06-16

Circuits and methods for calibrating offset in an amplifier

#18
20110095620
2011-04-28

Galvanic isolators and coil transducers

#19
20110074505
2011-03-31

Offset voltage calibration method and apparatus and amplifier thereof

#20
20110029109
2011-02-03

Audio signal controller

#21
20110026739
2011-02-03

High level capable audio amplification circuit

#22
20100301937
2010-12-02

Sensor output circuit

#23
20100301932
2010-12-02

Non-inverting amplifier and voltage supply circuit including the same

#24
20100244764
2010-09-30

Apparatus for sensorless positioning with signal amplifier

#25
20100164770
2010-07-01

Multi-stage comparator with offset canceling capacitor across secondary differential inputs for high-speed low-gain compare and high-gain auto-zeroing

#26
20100148875
2010-06-17

Circuit for compensation of leakage current-induced offset in a single-ended op-amp

#27
20100020448
2010-01-28

Galvanic isolator

#28
20100019841
2010-01-28

Minimizing changes in common mode voltage at inputs of an operational amplifier used in a switched capacitor differential amplifier

#29
20100013556
2010-01-21

Transconductance amplifier

#30
20090273400
2009-11-05

Device and method for generating an output signal

#31
20090243783
2009-10-01

Methods of making coil transducers

#32
20090243782
2009-10-01

High voltage hold-off coil transducer

#33
20090231033
2009-09-17

Amplifier circuit

#34
20090212983
2009-08-27

Integrated circuit device and electronic instrument

#35
20090212864
2009-08-27

Preamplifier for receiver and method thereof

#36
20090201086
2009-08-13

Current sense amplifier with extended common mode voltage range

#37
20090179670
2009-07-16

PERFORMANCE INVERSION DETECTION CIRCUIT AND A DESIGN STRUCTURE FOR THE SAME

#38
20090115507
2009-05-07

Method of and apparatus for reducing settling time of a switched capacitor amplifier

#39
20090096524
2009-04-16

Differential amplification circuit and manufacturing method thereof

#40
20090021284
2009-01-22

Low voltage differential signal receiver

#41
20080297252
2008-12-04

Differential signal generator circuit

#42
20080218266
2008-09-11

Amplifier circuit with input terminals thereof connected to sampling capacitors

#43
20080204567
2008-08-28

SAMPLE AND HOLD CIRCUITS WITH BUFFER OFFSET REMOVED

#44
20080179963
2008-07-31

Galvanic isolators and coil transducers

#45
20080157847
2008-07-03

DC offset calibration apparatus and method for differential signals

#46
20080150631
2008-06-26

Biosignal amplifying device

#47
20080121712
2008-05-29

Digitizing circuit for anti-ambient light noise

#48
20080024222
2008-01-31

Voltage level shifting circuit, a differential input stage circuit, and a method for providing a level shifted differential signal to a differential input buffer circuit

#49
20070291930
2007-12-20

Output stacking architecture for an amplifier

#50
20070285166
2007-12-13

Fully differential sensing apparatus and input common-mode feedback circuit thereof

#51
20070229038
2007-10-04

Error reducing comparator-based switch capacitor circuit and method thereof

#52
20070200619
2007-08-30

Preamplifier circuits and methods of calibrating an offset in the same

#53
20070170974
2007-07-26

Amplifier feedback switch configuration with improved PSRR