H03F2200/417 - CPC Classification Index

#1

20210167734

2021-06-03

Apparatus and methods for envelope tracking systems with automatic mode selection

#2

20210021243

2021-01-21

Multiphase buck-boost amplifier

#3

20200099343

2020-03-26

Apparatus and methods for envelope tracking systems with automatic mode selection

#4

20200083849

2020-03-12

CIRCUITS, DEVICES, AND METHODS FOR REDUCING CO-CHANNEL INTERFERENCE

#5

20190334488

2019-10-31

Low noise amplifier circuit with multiple-input multiple-output (MIMO) structure

#6

20190319593

2019-10-17

Multiphase buck-boost amplifier

#7

20190263712

2019-08-29

Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers

#8

20190207561

2019-07-04

Amplifying device comprising a compensation circuit

#9

20190204360

2019-07-04

Electronic amplification device, measurement apparatus and associated measurement method

#10

20190190465

2019-06-20

Switched-capacitor power amplifiers

#11

20190182894

2019-06-13

WLAN front-end

#12

20190165736

2019-05-30

Envelope trackers providing compensation for power amplifier output load variation

#13

20190158043

2019-05-23

Integrated CMOS transmit/receive switch in a radio frequency device

#14

20190080660

2019-03-14

Half-power buffer and/or amplifier

#15

20190020315

2019-01-17

Apparatus and methods for envelope tracking systems with automatic mode selection

#16

20180351632

2018-12-06

Signal coupling apparatus and method of operating a signal coupling apparatus

#17

20180331659

2018-11-15

Envelope trackers providing compensation for power amplifier output load variation

#18

20180302036

2018-10-18

Apparatus and methods for envelope tracking systems

#19

20180241357

2018-08-23

Photoelectric conversion device

#20

20180198413

2018-07-12

Semiconductor integrated circuit, sensor reader, and sensor readout method

#21

20180183394

2018-06-28

Dynamic amplifier and chip using the same

#22

20180175807

2018-06-21

LNA with programmable linearity

#23

20180113166

2018-04-26

High speed and high precision characterization of VTsat and VTlin of FET arrays

#24

20180076772

2018-03-15

Apparatus and methods for envelope tracking systems with automatic mode selection

#25

20180048273

2018-02-15

Selective high and low power amplifier switch architecture

#26

20170366139

2017-12-21

ARRANGEMENT FOR RADIO FREQUENCY HIGH POWER GENERATION

#27

20170331366

2017-11-16

Switched-capacitor buffer and related methods

#28

20170302232

2017-10-19

Class D amplifier

#29

20170264251

2017-09-14

Circuits, devices and methods for reducing co-channel interference

#30

20170047953

2017-02-16

Apparatus and methods for envelope tracking systems

#31

20160365836

2016-12-15

Switching supply delay compensation

#32

20160336904

2016-11-17

Arrangement and method for radio-frequency (RF) high power generation for compensating a failed power amplifier module

#33

20160248469

2016-08-25

Dynamic tuning of a transformer-based radio frequency power amplifier

#34

20160227603

2016-08-04

Front-end integrated circuit for WLAN applications

#35

20160226553

2016-08-04

Integrated CMOS transmit/receive switch in a radio frequency device

#36

20160226552

2016-08-04

Transmit-receive isolation in a transformer-based radio frequency power amplifier

#37

20160071453

2016-03-10

Differential amplifier and display driver including the same

#38

20150326184

2015-11-12

Apparatus and methods for envelope trackers

#39

20150318828

2015-11-05

Quasi-broadband amplifier according to the Doherty principle

#40

20150194884

2015-07-09

Direct current (DC)-DC converter having a multi-stage output filter

#41

20150171800

2015-06-18

Tunable loadline

#42

20140285264

2014-09-25

Reconfigurable output matching network for multiple power mode power amplifiers

#43

20140213204

2014-07-31

Apparatus and methods for envelope tracking in radio frequency systems

#44

20140062589

2014-03-06

Quasi-broadband doherty amplifier with associated capacitor circuit

#45

20140003621

2014-01-02

Grounding switch method and apparatus

#46

20130293310

2013-11-07

Dual inductive element charge pump buck and buck power supplies

#47

20130271224

2013-10-17

Multiband RF switch ground isolation

#48

20130271221

2013-10-17

Direct current (DC)-DC converter having a multi-stage output filter

#49

20130265108

2013-10-10

Extremely high frequency dual-mode class AB power amplifier

#50

20130217341

2013-08-22

High efficiency path based power amplifier circuitry

#51

20130177106

2013-07-11

Multiple functional equivalence digital communications interface

#52

20130163577

2013-06-27

POWER AMPLIFYING CIRCUIT AND WIRELESS COMMUNICATION DEVICE

#53

20130147551

2013-06-13

Amplifying apparatus

#54

20130147445

2013-06-13

Voltage multiplier charge pump buck

#55

20130135052

2013-05-30

Interference reduction between RF communications bands

#56

20130135044

2013-05-30

High-frequency power amplifier with doherty extension

#57

20130043944

2013-02-21

Cascaded converged power amplifier

#58

20120306578

2012-12-06

RF AMPLIFIER WITH OPEN CIRCUIT OUTPUT OFF-STATE

#59

20120302186

2012-11-29

Independent PA biasing of a driver stage and a final stage

#60

20120299661

2012-11-29

PA bias power supply undershoot compensation

#61

20120299660

2012-11-29

Selecting PA bias levels of RF PA circuitry during a multislot burst

#62

20120299647

2012-11-29

PA envelope power supply undershoot compensation

#63

20120299646

2012-11-29

Selecting a converter operating mode of a PA envelope power supply

#64

20120299645

2012-11-29

Temperature correcting an envelope power supply signal for RF PA circuitry

#65

20120286876

2012-11-15

Multi-band power amplifier

#66

20120282869

2012-11-08

RF PA linearity requirements based converter operating mode selection

#67

20120280752

2012-11-08

Embedded RF PA temperature compensating bias transistor

#68

20120280747

2012-11-08

Feedback based buck timing of a direct current (DC)-DC converter

#69

20120280746

2012-11-08

DC-DC converter semiconductor die structure

#70

20120269240

2012-10-25

Apparatus and methods for envelope tracking

#71

20120242411

2012-09-27

OPERATIONAL AMPLIFIER

#72

20120235736

2012-09-20

Charge pump based power amplifier envelope power supply and bias power supply

#73

20120229210

2012-09-13

Overlay class F choke

#74

20120223774

2012-09-06

Look-up table based configuration of multi-mode multi-band radio frequency power amplifier circuitry

#75

20120223773

2012-09-06

Linear mode and non-linear mode quadrature PA circuitry

#76

20120218043

2012-08-30

Amplifier activation

#77

20120207252

2012-08-16

Frequency correction of a programmable frequency oscillator by propagation delay compensation

#78

20120184233

2012-07-19

Combined RF detector and RF attenuator with concurrent outputs

#79

20120178397

2012-07-12

Receiver applied to a satellite down converter and radio frequency metal-oxide-semiconductor amplifier

#80

20120170690

2012-07-05

Auto configurable 2/3 wire serial interface

#81

20120161877

2012-06-28

PA bias power supply efficiency optimization

#82

20120139646

2012-06-07

Circuit for an amplifier

#83

20120112838

2012-05-10

RF power amplifier and RF power module using the same

#84

20120098595

2012-04-26

Quadrature power amplifier architecture

#85

20120069881

2012-03-22

Broadband power amplifier

#86

20120044026

2012-02-23

Multiband matching circuit

#87

20120009889

2012-01-12

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

#88

20120007673

2012-01-12

Amplifier with wide gain range

#89

20120002821

2012-01-05

Grounding switch method and apparatus

#90

20110298642

2011-12-08

CURRENT TRIMMING CIRCUIT AND A/D CONVERTER INCLUDING CURRENT TRIMMING CIRCUIT

#91

20110285884

2011-11-24

Circuit for processing a time-discrete analog signal and image sensor

#92

20110250854

2011-10-13

Reconfigurable wireless transmission system

#93

20110241782

2011-10-06

Power amplifier

#94

20110156812

2011-06-30

Multi-band, multi-mode RF transmit amplifier system with separate signal paths for linear and saturated operation

#95

20110103441

2011-05-05

Cable modem

#96

20110096766

2011-04-28

CURRENT CONSUMPTION REDUCTION WITH LOW POWER AMPLIFIER

#97

20110057730

2011-03-10

RADIO FREQUENCY POWER AMPLIFIER

#98

20110050348

2011-03-03

Radio frequency power amplifier

#99

20100214023

2010-08-26

Amplifying system and related method

#100

20100194481

2010-08-05

RF power amplifier and RF power module using the same

#101

20100156540

2010-06-24

Amplifier architecture for polar modulation

#102

20100079211

2010-04-01

MATCHING CIRCUIT, AND RADIO-FREQUENCY POWER AMPLIFIER AND MOBILE PHONE INCLUDING THE SAME

#103

20090201085

2009-08-13

Power amplifying apparatus and mobile communication terminal

#104

20090153248

2009-06-18

Amplifier with dynamic bias

#105

20090103652

2009-04-23

SAMPLING RECEIVER

#106

20090085664

2009-04-02

POWER AMPLIFIER HAVING AN ADAPTIVE AMPLIFYING MECHANISM

#107

20090052103

2009-02-26

Circuit arrangement for the protection of electronic components or assemblies

#108

20080258817

2008-10-23

Hybrid concurrent and switched dual-band low noise amplifier

#109

20080132176

2008-06-05

Transceiver for reducing current consumption in a wireless communications network

#110

20080130786

2008-06-05

Current consumption reduction with low power amplifier

#111

20080089533

2008-04-17

Circuit arrangement for suppression of switching noises

#112

20080061887

2008-03-13

Apparatus for converting single-ended signal into differential signal

#113

20080055447

2008-03-06

Circuit for processing a time-discrete analog signal and image sensor

#114

20080055001

2008-03-06

Power amplifying apparatus and mobile communication terminal

#115

20080049952

2008-02-28

DEVICE FOR PREVENTING POP NOISE IN AN AUDIO OUTPUT APPARATUS AND METHOD THEREFOR

#116

20080029753

2008-02-07

Configurable circuits using phase change switches

#117

20070194853

2007-08-23

High-power amplifier

#118

20070189413

2007-08-16

Wireless communication system using a single trace for transmitting signals

#119

20070121962

2007-05-31

Audio signal output control device that suppresses pop sound

#120

20070115065

2007-05-24

Stabilization circuit and multiband amplification circuit

#121

20070063766

2007-03-22

High-frequency amplifier

#122

20070008032

2007-01-11

Power amplifier and transmitter

#123

20060132177

2006-06-22

Linear buffer

#124

20060077102

2006-04-13

Wafer scale beam forming antenna module with distributed amplification

#125

20050077944

2005-04-14

Linear buffer

#126

20050030094

2005-02-10

Low power consumption adaptive power amplifier

#127

20050007149

2005-01-13

Cascode signal driver with low harmonic content

#128

15829683

2019-03-19

Tuned amplifier matching based on band switch setting