ClassID:

219633

H03F2200/411 - page 3 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising two power stages

Recent Application in this class:
#601
20100171552
2010-07-08

Push-pull linear hybrid class H amplifier

#602
20100158539
2010-06-24

Amplification circuit, differential amplification circuit, and optical transmitter

#603
20100141340
2010-06-10

Method and apparatus for a high bandwidth amplifier with wide band peaking

#604
20100128898
2010-05-27

METHOD AND APPARATUS FOR OPERATION SEQUENCING OF AUDIO AMPLIFIERS

#605
20100128775
2010-05-27

APPARATUS AND METHOD FOR TRANSMITTING SIGNAL IN WIRELESS COMMUNICATION SYSTEM

#606
20100127772
2010-05-27

Feedback amplifier and audio system thererof

#607
20100117738
2010-05-13

Multilayer amplifier module

#608
20100117737
2010-05-13

RF power amplifier

#609
20100112966
2010-05-06

Method and device for controlling power amplification

#610
20100109774
2010-05-06

Operational amplifier

#611
20100090767
2010-04-15

RF amplification device

#612
20100066445
2010-03-18

Power amplifier, method for controlling power amplifier, and wireless communication apparatus

#613
20100052786
2010-03-04

Automatic gain control apparatus and technique

#614
20100033249
2010-02-11

DIFFERENTIAL AMPLIFIER

#615
20100029227
2010-02-04

Multi-mode configurable transmitter circuit

#616
20100007420
2010-01-14

Operational amplifier

#617
20100007419
2010-01-14

Instrumentation input systems

#618
20100007411
2010-01-14

Premium power amplifier

#619
20090322420
2009-12-31

Feedback biasing technique for a stage of an amplifier that uses a feedback control loop having low gain

#620
20090309661
2009-12-17

Systems and methods for switching mode power amplifier control

#621
20090304092
2009-12-10

Low offset input circuit and transmission system with the input circuit

#622
20090295481
2009-12-03

High speed differential to single ended converting circuit

#623
20090289722
2009-11-26

Bonded wafer package module

#624
20090261866
2009-10-22

Voltage divider circuit

#625
20090231036
2009-09-17

Amplifier circuit

#626
20090191833
2009-07-30

High performance CMOS radio frequency receiver

#627
20090184769
2009-07-23

Negative-feedback type ultra-wideband signal amplification circuit

#628
20090179876
2009-07-16

Buffer amplifier with minimized power consumption and display driver including the same

#629
20090174474
2009-07-09

Power amplifier

#630
20090160556
2009-06-25

System and method for providing a configurable inductor less multi-stage low-noise amplifier

#631
20090156144
2009-06-18

Electric device

#632
20090115523
2009-05-07

Discrete time amplifier circuit and analong-digital converter

#633
20090108938
2009-04-30

Circuit and method for dynamic current compensation

#634
20090096068
2009-04-16

Semiconductor circuit with amplifier, bond wires and inductance compensating bond wire

#635
20090091385
2009-04-09

Differential amplifier circuit

#636
20090085664
2009-04-02

POWER AMPLIFIER HAVING AN ADAPTIVE AMPLIFYING MECHANISM

#637
20090027130
2009-01-29

Power amplifier

#638
20080218270
2008-09-11

Multi-mode power amplifier with low gain variation over temperature

#639
20080186099
2008-08-07

Power amplifier and multistage amplification circuit including same

#640
20080186094
2008-08-07

Apparatus for high power amplifier in wireless communication system

#641
20080175335
2008-07-24

Transmission circuit comprising multistage amplifier, and communication device

#642
20080157825
2008-07-03

Driving apparatus and driving method thereof

#643
20080100375
2008-05-01

Integrated channel filter using multiple resonant filters and method of operation

#644
20080090535
2008-04-17

Amplifier circuit and receiving device

#645
20080068240
2008-03-20

Transmission circuit and communication device

#646
20080048736
2008-02-28

Differential circuit and output buffer circuit including the same

#647
20080030276
2008-02-07

Multi-mode power amplifier with high efficiency under backoff operation

#648
20080014866
2008-01-17

Transceiver architecture and method for wireless base-stations

#649
20070230615
2007-10-04

Reduced distortion amplifier

#650
20070222508
2007-09-27

Multi-mode power amplifier with reduced low power current consumption

#651
20070188224
2007-08-16

CDMA power amplifier design for low and high power modes

#652
20070146077
2007-06-28

Radio frequency power amplifier

#653
20070057729
2007-03-15

Power amplifier and wireless communication device

#654
20070024376
2007-02-01

Radio frequency power amplifier module

#655
20070021088
2007-01-25

Dual-band active filter

#656
20070001300
2007-01-04

Semiconductor device

#657
20060261890
2006-11-23

Circuits and methods for implementing power amplifiers for millimeter wave applications

#658
20060232329
2006-10-19

Integrated channel filter using multiple resonant filters and method of operation

#659
20060208796
2006-09-21

Bias control for reducing amplifier power consumption and maintaining linearity

#660
20060159292
2006-07-20

Method and topology to switch an output stage in a class ab audio amplifier for wireless applications

#661
20060066403
2006-03-30

Power amplifier and method for power amplification

#662
20060028278
2006-02-09

Radio frequency power amplifier module

#663
20050269590
2005-12-08

Semiconductor device

#664
20050195024
2005-09-08

Apparatus and method for DC offset reduction

#665
20050093626
2005-05-05

Radio frequency power amplifier module

#666
20050059362
2005-03-17

Method and apparatus providing integrated load matching using adaptive power amplifier compensation

#667
20050012553
2005-01-20

Variable gain low noise amplifier and method

#668
15826536
2018-06-19

Wireless radio frequency transceiver system for internet of things

#669
15821616
2019-04-23

Low-power differential amplifier with improved unity gain frequency

#670
15807640
2019-01-22

Low voltage amplifier with gain boost circuit

#671
15804268
2019-04-02

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

#672
15488979
2018-03-13

Calibration for amplifier with configurable final output stage

#673
15487555
2018-06-26

Switching in amplifier with configurable final output stage

#674
15480291
2018-01-09

Multipath linear low noise amplifier

#675
15437735
2018-03-13

Low noise amplifier for carrier aggregation and apparatus including the same

#676
15426111
2018-05-08

Method and apparatus for high-speed clipping and recovery in amplifier circuit

#677
15299527
2018-02-13

Offset calibration circuit and method for an amplifier circuit

#678
15213718
2018-07-03

Frequency enhanced active transistor

#679
15201206
2017-11-07

Wideband single-ended IMdistortion nulling

#680
15149281
2017-08-29

Transimpedance amplifier