ClassID:

220038

H03F2203/45466 - 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 CSC being controlled, e.g. by a signal derived from a non specified place in the dif amp circuit

Recent Application in this class:
#1
20190229716
2019-07-25

Comparator circuitry

#2
20190229683
2019-07-25

Methods of adjusting gain error in instrumentation amplifiers

#3
20180323762
2018-11-08

Dynamic correction of gain error in current-feedback instrumentation amplifiers

#4
20180323748
2018-11-08

Methods of adjusting gain error in instrumentation amplifiers

#5
20180287575
2018-10-04

Driver circuit

#6
20180198431
2018-07-12

Variable gain amplifier

#7
20170063311
2017-03-02

Semiconductor apparatus and receiver thereof

#8
20160164479
2016-06-09

Buffer circuit robust to variation of reference voltage signal

#9
20160126898
2016-05-05

Apparatus and methods for reducing input bias current of an electronic circuit

#10
20160087727
2016-03-24

Optical modulator driver circuit and optical transmitter

#11
20150349729
2015-12-03

Amplifier circuit, bi-stage amplifier circuit, multi-stage amplifier circuit, RF-amplifier circuit, receiver section, RF-transceiver, and integrated circuit

#12
20150349717
2015-12-03

Amplifier circuit with improved accuracy

#13
20150122034
2015-05-07

Detection device, sensor, electronic apparatus, and moving object

#14
20150015307
2015-01-15

Comparator and amplifier

#15
20140354360
2014-12-04

High frequency module and portable terminal using same

#16
20140333380
2014-11-13

Class AB differential line drivers

#17
20140159814
2014-06-12

Differential receiver

#18
20140029143
2014-01-30

Receiver having a wide common mode input range

#19
20130278340
2013-10-24

Power amplifiers with improved power control

#20
20130257513
2013-10-03

Fully complementary self-biased differential receiver with startup circuit

#21
20130215954
2013-08-22

Analog signal current integrators with tunable peaking function

#22
20130187629
2013-07-25

Dynamic biasing of an amplifier using capacitive driving of internal bias voltages

#23
20130162353
2013-06-27

Signal amplification circuit

#24
20130154737
2013-06-20

Comparator and amplifier

#25
20130135049
2013-05-30

Incremental gain amplifier

#26
20130114665
2013-05-09

Low nonlinear distortion variable gain amplifier

#27
20130043877
2013-02-21

Operational amplifier with different power supply voltages

#28
20130021100
2013-01-24

Method and system for multiple tuner application using a low noise broadband distribution amplifier

#29
20130016087
2013-01-17

Amplifier, liquid crystal displaying driving circuit and liquid crystal display apparatus

#30
20120299632
2012-11-29

SIMULTANEOUS SIGNAL INPUT MATCHING AND LINEARIZATION

#31
20120293266
2012-11-22

Power amplifiers with improved efficiency over power control

#32
20120293264
2012-11-22

Power control for linear and class AB power amplifiers

#33
20120286839
2012-11-15

Systems and methods for a continuous, linear, 360-degree analog phase shifter

#34
20120242408
2012-09-27

Low noise variable gain amplifier utilizing variable feedback techniques with constant input/output impedance

#35
20120169422
2012-07-05

Amplifier with non-linear current mirror

#36
20120161991
2012-06-28

Offset cancellation for analog to digital converters

#37
20120146727
2012-06-14

Fast power up comparator

#38
20120086509
2012-04-12

Amplifier input stage and slew boost circuit

#39
20120007664
2012-01-12

Apparatus and method for recovery of wasted power from differential drivers

#40
20120001689
2012-01-05

Nanoelectronic differential amplifiers and related circuits implemented on a segment of a graphene nanoribbon

#41
20110316629
2011-12-29

Offset cancellation for differential circuits

#42
20110299577
2011-12-08

Differential driver with common mode voltage tracking and method

#43
20110241778
2011-10-06

Peaking circuit, method for adjusting peaking circuit, differential amplifier installing peaking circuit, laser diode driving circuit installing peaking circuit, and data processing unit installing peaking circuit

#44
20110235689
2011-09-29

Power amplifier and semiconductor integrated circuit

#45
20110210793
2011-09-01

Variable gain amplifier having automatic power consumption optimization

#46
20110204923
2011-08-25

High-speed comparator

#47
20110102058
2011-05-05

Circuit for generating a reference voltage

#48
20110102049
2011-05-05

Circuit for generating a reference voltage with compensation of the offset voltage

#49
20110095823
2011-04-28

Incremental gain amplifier

#50
20110095812
2011-04-28

Transmission line coupled to circuits and Q-enhancement cell

#51
20110086594
2011-04-14

Providing a temperature dependent bias for a device

#52
20110074508
2011-03-31

Voltage regulator operable to switch between a two-stage structure operation and a three-stage structure operation

#53
20110063031
2011-03-17

Driving apparatus and driving method thereof

#54
20110062313
2011-03-17

Nanoelectronic differential amplifiers and related circuits having graphene nanoribbons

#55
20110001562
2011-01-06

High speed linear differential amplifier

#56
20100315167
2010-12-16

Inter-stage matching network to enhance common mode stability

#57
20100315164
2010-12-16

Constant-bandwidth variable gain amplifier

#58
20100246858
2010-09-30

Amplifier circuit

#59
20100176884
2010-07-15

Transconductance amplifier with improved linearity

#60
20100171556
2010-07-08

Differential amplifier with a feedback unit

#61
20100156533
2010-06-24

Regulator circuit

#62
20100109614
2010-05-06

Signal processor comprising a reference voltage circuit

#63
20100073036
2010-03-25

High-speed low-voltage differential signaling system

#64
20100066436
2010-03-18

Active-time dependent bias current generation for switched-capacitor circuits

#65
20100052794
2010-03-04

Method and system for improving efficiency over power control for linear and class AB power amplifiers

#66
20100039178
2010-02-18

Amplifier circuit

#67
20100033250
2010-02-11

Differential amplifier

#68
20100013557
2010-01-21

Current-controlled CMOS (C3MOS) fully differential integrated wideband amplifier/equalizer with adjustable gain and frequency response without additional power or loading

#69
20090310267
2009-12-17

Methods, design structures, and systems for current mode logic (CML) differential driver ESD protection circuitry

#70
20090284315
2009-11-19

Operational amplifier

#71
20090278604
2009-11-12

Operational amplifier and related method of enhancing slew rate

#72
20090273401
2009-11-05

Method and system for multiple tuner application using a low noise broadband distribution amplifier

#73
20090273400
2009-11-05

Device and method for generating an output signal

#74
20090195313
2009-08-06

Boosted tail-current circuit

#75
20090167361
2009-07-02

High-speed amplitude detector with a digital output

#76
20090163156
2009-06-25

DAC based switching power amplifier

#77
20090153250
2009-06-18

METHOD AND SYSTEM FOR SCALING SUPPLY, DEVICE SIZE, AND LOAD OF A POWER AMPLIFIER

#78
20090135536
2009-05-28

Over-current protection in linear regulators

#79
20090134913
2009-05-28

Signal comparison circuit

#80
20090131099
2009-05-21

Amplifying device and radio

#81
20090121910
2009-05-14

Method and system for a control scheme on power and common-mode voltage reduction for a transmitter

#82
20090058524
2009-03-05

Received signal strength indicator self-calibrating gain of limiter

#83
20090045875
2009-02-19

Data amplifying circuit controllable with swing level according to operation mode and output driver including the same

#84
20090040796
2009-02-12

Bipolar transistor drivers

#85
20090033422
2009-02-05

Multi-level slew and swing control buffer

#86
20080290942
2008-11-27

DIFFERENTIAL AMPLIFIER

#87
20080290941
2008-11-27

Nanoelectronic differential amplifiers and related circuits having carbon nanotubes, graphene nanoribbons, or other related materials

#88
20080278224
2008-11-13

Apparatus and method for recovery of wasted power from differential drivers

#89
20080258816
2008-10-23

Low frequency analog circuit and design method thereof

#90
20080258776
2008-10-23

ANALOG SIGNAL TRANSMISSION CIRCUIT

#91
20080252374
2008-10-16

Amplifier and system utilizing the same

#92
20080246511
2008-10-09

Differential Drive Circuit and Electronic Apparatus Incorporating the Same

#93
20080238554
2008-10-02

Serial link output stage differential amplifier and method

#94
20080238552
2008-10-02

Semiconductor device

#95
20080238521
2008-10-02

Low differential output voltage circuit

#96
20080207144
2008-08-28

Method and system for improving efficiency over power control for linear and class AB power amplifiers

#97
20080204137
2008-08-28

Design structure for a serial link output stage differential amplifier

#98
20080197928
2008-08-21

Threshold voltage compensation for a two stage amplifier

#99
20080191803
2008-08-14

Variable gain amplifying circuit

#100
20080174367
2008-07-24

Tail-current steering circuit and method for rail-to-rail operational amplifier input stage

#101
20080157825
2008-07-03

Driving apparatus and driving method thereof

#102
20080143441
2008-06-19

AMPLIFIER HAVING PLURALITY OF DIFFERENTIAL PAIRS AND COMMUNICATION SYSTEM EQUIPPED WITH SAME

#103
20080143440
2008-06-19

Comparator having a preamplifier with power saved while latching data

#104
20080136523
2008-06-12

Gain improved operational transconductance amplifier and control method thereof

#105
20080122537
2008-05-29

Operational amplifier circuit

#106
20080088374
2008-04-17

Variable gain amplifiers

#107
20080068084
2008-03-20

Serial link output stage differential amplifier and method

#108
20080068082
2008-03-20

Amplifier circuit and communication device

#109
20080061881
2008-03-13

Differential amplifier circuit, voltage regulator using the differential amplifier circuit, and method for controlling the differential amplifier circuit

#110
20080061847
2008-03-13

Driver circuit and method of controlling the same

#111
20080054949
2008-03-06

High gain, high speed comparator operable at low current

#112
20080037617
2008-02-14

Differential driver with common-mode voltage tracking and method

#113
20080036536
2008-02-14

System and method for linearizing a CMOS differential pair

#114
20080032661
2008-02-07

Circuit with Q-enhancement cell having programmable bias current slope

#115
20080032648
2008-02-07

Ultra wide band, differential input/output, high frequency active combiner in an integrated circuit

#116
20080018401
2008-01-24

Variable gain amplifier with wide gain variation and wide bandwidth

#117
20080001665
2008-01-03

Ultra wide band, differential input/output, high frequency active splitter in an integrated circuit

#118
20080001661
2008-01-03

Regulator circuit

#119
20070296499
2007-12-27

AMPLIFIER CIRCUIT HAVING A COMPENSATION CIRCUIT COUPLED TO AN OUTPUT NODE OF AN OPERATIONAL AMPLIFIER FOR IMPROVING LOOP STABILITY

#120
20070279131
2007-12-06

Variable gain amplifier and differential amplifier

#121
20070275676
2007-11-29

DAC based switching power amplifier

#122
20070273413
2007-11-29

Clock buffer

#123
20070194851
2007-08-23

Apparatus and method for affecting operation of a signal treating device

#124
20070194847
2007-08-23

Operational amplifier

#125
20070182487
2007-08-09

Differential amplifier and operational amplifier

#126
20070152752
2007-07-05

Bias circuit

#127
20070096818
2007-05-03

Variable-gain amplifier and related method

#128
20070082640
2007-04-12

Signal generation apparatus, frequency converting apparatus, and receiver

#129
20070069767
2007-03-29

Differential amplifier

#130
20070057724
2007-03-15

Operational amplifier

#131
20070030069
2007-02-08

Differential amplifier

#132
20070030066
2007-02-08

Data amplifying circuit controllable with swing level according to operation mode and output driver including the same

#133
20070026815
2007-02-01

Over-current protection in linear regulators

#134
20070025435
2007-02-01

Current-controlled CMOS (C3MOS) fully differential integrated wideband amplifier/equalizer with adjustable gain and frequency response without additional power or loading

#135
20070024369
2007-02-01

Current-controlled CMOS (C3MOS) wideband input data amplifier for reduced differential and common-mode reflection

#136
20070024367
2007-02-01

Operational amplifier and constant-current generation circuit using the same

#137
20070018726
2007-01-25

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

#138
20070001761
2007-01-04

Differential amplifier and operational amplifier

#139
20060284671
2006-12-21

Variable gain amplifier circuit, method of correcting DC offset of the variable gain amplifying circuit, and radio receiving apparatus

#140
20060246860
2006-11-02

Method and system for a control scheme on power and common-mode voltage reduction for a transmitter

#141
20060183449
2006-08-17

Gain variable voltage/current conversion circuit and filter circuit using the same

#142
20060181349
2006-08-17

CMOS variable gain amplifier for controlling dB linear gain

#143
20060170497
2006-08-03

Gain variable amplifier

#144
20060164149
2006-07-27

Mixer stage and method for mixing two signals having different frequencies

#145
20060125562
2006-06-15

Variable gain amplifiers systems and methods

#146
20060125561
2006-06-15

High slew ECL device and method therefor

#147
20060119432
2006-06-08

Layout structure of signal driver

#148
20050285678
2005-12-29

Differential amplifier with adaptive biasing and offset cancellation

#149
20050285674
2005-12-29

Adapting operational amplifier frequency response respective to closed loop gain

#150
20050248404
2005-11-10

Variable-gain amplifier having error amplifier with constant loop gain

#151
20050225390
2005-10-13

Amplifier having switchable negative feedback

#152
20050195033
2005-09-08

Differential amplifier circuit used in solid-state image pickup apparatus, and arrangement that avoids influence of variations of integrated circuits in manufacture and the like

#153
20050195013
2005-09-08

Tunable current-mode integrator for low-frequency filters

#154
20050168284
2005-08-04

Operational amplifier with self control circuit for realizing high slew rate throughout full operating range

#155
20050151587
2005-07-14

Differential amplifier and calculation amplifier

#156
20050116774
2005-06-02

Method and system for implementing autonomous automatic gain control in a low noise broadband distribution amplifier

#157
20050110569
2005-05-26

Digitally controlled transconductance cell

#158
20050093630
2005-05-05

Power level controlling of first amplification stage for an integrated RF power amplifier

#159
20050093628
2005-05-05

Differential amplifier circuit and multistage amplifier circuit

#160
20050083125
2005-04-21

Variable gain amplifier capable of functioning at low power supply voltage

#161
20050063270
2005-03-24

Amplifier circuit for optical disk drive

#162
20050062536
2005-03-24

Amplifier apparatus, method, and system

#163
20050035817
2005-02-17

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

#164
20050024142
2005-02-03

Variable gain amplifier system

#165
20050007197
2005-01-13

Method and system for producing a drive signal for a current steering amplifier

#166
20050007196
2005-01-13

Absorptive microwave single pole single throw switch