H03F2203/45641 - CPC Classification Index

ClassID:

220125 ⎘

H03F2203/45641 - 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 LC being controlled, e.g. by a signal derived from a non specified place in the dif amp circuit

Recent Application in this class:

20190235551

2019-08-01

Low drop out regulator compatible with type C USB standard

20190214952

2019-07-11

Circuit, receiving circuit, optical receiver, optical transmission system, and active optical cable

20180183394

2018-06-28

Dynamic amplifier and chip using the same

20170336819

2017-11-23

Low drop out regulator compatible with type C USB standard

20160301372

2016-10-13

Configurable transceiver circuit architecture

20150357980

2015-12-10

Signal processing circuit, resolver digital converter, and multipath nested mirror amplifier

20140333380

2014-11-13

Class AB differential line drivers

20140266440

2014-09-18

Offset cancellation with minimum noise impact and gain-bandwidth degradation

20140062596

2014-03-06

Chopped oscillator

#10

20140049317

2014-02-20

Power amplifier circuit

#11

20130342274

2013-12-26

DC-coupled peak detector

#12

20130281042

2013-10-24

Reconfigurable LNA for increased jammer rejection

#13

20130162353

2013-06-27

Signal amplification circuit

#14

20130162318

2013-06-27

Differential output circuit

#15

20130115876

2013-05-09

Near field communications reader

#16

20120313704

2012-12-13

Differential amplifier stage with integrated offset cancellation circuit

#17

20120154049

2012-06-21

Common-mode feedback circuit

#18

20120009889

2012-01-12

Narrow-band tunable radio frequency (RF) power amplifiers and related methods

#19

20120007677

2012-01-12

Class AB operational amplifier and output stage quiescent current control method

#20

20120001697

2012-01-05

Differential amplifier stage with integrated offset cancellation circuit

#21

20110267145

2011-11-03

COMPARISON APPARATUS AND SPEED-UP METHOD FOR COMPARATOR

#22

20110210793

2011-09-01

Variable gain amplifier having automatic power consumption optimization

#23

20100327940

2010-12-30

Embedded phase noise measurement system

#24

20100308915

2010-12-09

Phase margin modification in operational transconductance amplifiers

#25

20100301939

2010-12-02

High frequency receiver preamplifier with CMOS rail-to-rail capability

#26

20100271128

2010-10-28

Composite differential RF power amplifier layout

#27

20100202499

2010-08-12

Wireless radio frequency signal transceiving system

#28

20100148868

2010-06-17

Differential amplifier

#29

20100127736

2010-05-27

Low voltage differential signaling driver with programmable on-chip resistor termination

#30

20100073064

2010-03-25

Voltage clamp

#31

20100052786

2010-03-04

Automatic gain control apparatus and technique

#32

20090284311

2009-11-19

Resistor circuit

#33

20090163156

2009-06-25

DAC based switching power amplifier

#34

20090140810

2009-06-04

Variable gain amplifier

#35

20090135536

2009-05-28

Over-current protection in linear regulators

#36

20090079503

2009-03-26

Overload recovery circuit for folded cascode amplifiers

#37

20090052103

2009-02-26

Circuit arrangement for the protection of electronic components or assemblies

#38

20090045875

2009-02-19

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

#39

20090027124

2009-01-29

Level-Shifting Buffer

#40

20090015332

2009-01-15

Startup circuit for subregulated amplifier

#41

20080290943

2008-11-27

Multi-mode amplifier arrangement and method for controlling an amplifier arrangement

#42

20080278232

2008-11-13

Operational amplifier with rail-to-rail common-mode input and output range

#43

20080238552

2008-10-02

Semiconductor device

#44

20080218254

2008-09-11

Reduced jitter amplification methods and apparatuses

#45

20080169875

2008-07-17

Level-shifting differential amplifier

#46

20080136522

2008-06-12

Amplifier with current mirror bias adjust

#47

20080079490

2008-04-03

Asymmetric rise/fall time and duty cycle control circuit

#48

20080062295

2008-03-13

Photoelectric conversion apparatus with fully differential amplifier

#49

20080061828

2008-03-13

Inductor-tuned buffer circuit with improved modeling and design

#50

20080055005

2008-03-06

Feedback-type variable gain amplifier and method of controlling the same

#51

20080055004

2008-03-06

Amplifiers, methods of increasing current gain in amplifiers, and imaging devices

#52

20080036536

2008-02-14

System and method for linearizing a CMOS differential pair

#53

20080018401

2008-01-24

Variable gain amplifier with wide gain variation and wide bandwidth

#54

20070279130

2007-12-06

High speed amplifier with controllable amplification and output impedance and comparator using the same

#55

20070279129

2007-12-06

Methods and apparatus to provide slew enhancement for low power amplifiers

#56

20070275676

2007-11-29

DAC based switching power amplifier

#57

20070273442

2007-11-29

High-efficiency class-AB amplifier

#58

20070252647

2007-11-01

Operational amplifier

#59

20070241793

2007-10-18

Current feedback amplifiers

#60

20070236288

2007-10-11

Apparatus for amplifying differential signal

#61

20070216475

2007-09-20

Dynamically accelerated operational amplifier and method thereof

#62

20070188229

2007-08-16

Variable gain amplifier with constant input referred third order intercept

#63

20070159248

2007-07-12

Differential amplifier, data driver and display device

#64

20070152744

2007-07-05

Variable gain voltage/current converter circuit having current compensation circuit for compensating for change in DC current flowing into active element for performing voltage/current conversion

#65