Patents-Review.com
ClassID:

219606 ⎘

H03F2200/336 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A I/Q, i.e. phase quadrature, modulator or demodulator being used in an amplifying circuit

Recent Application in this class:
#1
20260135521
2026-05-14

FAULT PROTECTION CIRCUITS AND METHODS

 #2
20260088777
2026-03-26

DIGITAL POWER AMPLIFIER WITH ANALOG CLIPPING SCHEME

 #3
20260039261
2026-02-05

NON-PERIODIC DIGITAL ENVELOPE TRACKING FOR POWER AMPLIFIERS

 #4
20250364954
2025-11-27

AMPLIFIER

 #5
20250337378
2025-10-30

POWER AMPLIFIER COMBINER

 #6
20250300633
2025-09-25

PHASED ARRAY TRANSMITTER

 #7
20250247765
2025-07-31

DISTRIBUTED ANTENNA SYSTEM

 #8
20250141409
2025-05-01

A CONFIGURABLE DOHERTY POWER AMPLIFIER ARRANGEMENT

 #9
20250096734
2025-03-20

Phase-Reconfigurable Circuits with Dynamic Phase Modulation for Wideband Dual-Input Power Amplifiers

 #10
20250070804
2025-02-27

POWER TRACKER FOR MULTIPLE TRANSMIT SIGNALS SENT SIMULTANEOUSLY

 #11
20250038720
2025-01-30

CONTROL FOR RADIO-FREQUENCY AMPLIFIER

 #12
20240396504
2024-11-28

Multi-Band Low Noise Amplifier, Phased Array, and Electronic Device

 #13
20240333233
2024-10-03

ELECTRONIC DEVICE FOR PREVENTING OR REDUCING POWER AMPLIFIER DAMAGE AND METHOD FOR OPERATING THEREOF

 #14
20240314668
2024-09-19

Distributed Antenna System

 #15
20240275334
2024-08-15

MULTI-LEVEL ENVELOPE TRACKING SYSTEMS WITH SEPARATE DC AND AC PATHS

 #16
20240136979
2024-04-25

Delay-compensating power management circuit

 #17
20240113674
2024-04-04

Semiconductor Device And Electronic Apparatus

 #18
20240080001
2024-03-07

ELECTRONIC APPARATUS AND SIGNAL PROCESSING METHOD

 #19
20240056037
2024-02-15

DOHERTY AMPLIFIER

 #20
20240039477
2024-02-01

BROADBAND PASSIVE LOAD MODULATION BALANCE POWER AMPLIFIER

 #21
20230387859
2023-11-30

Multi-level envelope tracking systems with adjusted voltage steps

 #22
20230370937
2023-11-16

METHOD AND SYSTEM FOR BASEBAND PREDISTORTION LINEARIZATION IN MULTI-CHANNEL WIDEBAND COMMUNICATION SYSTEMS

 #23
20230336203
2023-10-19

Transformer-based current-reuse amplifier with embedded IQ generation for compact image rejection architecture in multi-band millimeter-wave 5G communication

 #24
20230291356
2023-09-14

Multi-level envelope tracking with analog interface

 #25
20230268940
2023-08-24

Power tracker for multiple transmit signals sent simultaneously

 #26
20230253940
2023-08-10

Radio-frequency amplifier circuits, devices and methods

 #27
20230253924
2023-08-10

Multi-transmission power management circuit

 #28
20230246898
2023-08-03

Inphase quadrature current selector amplifiers for wireless communication

 #29
20230231524
2023-07-20

System, method, and outphasing power amplifier having vector generator and IQ modulators

 #30
20230198477
2023-06-22

Amplifier circuit for amplifying sinusoid signals

 #31
20230073967
2023-03-09

MULTI-PHASE-BASED DOHERTY POWER AMPLIFIER METHOD AND APPARATUS

 #32
20220399866
2022-12-15

Receiver automatic gain control systems and methods

 #33
20220345288
2022-10-27

Accurate sign change for radio frequency transmitters

 #34
20220311386
2022-09-29

Apparatus and methods for bias switching of power amplifiers

 #35
20220158682
2022-05-19

Transformer-based current-reuse amplifier with embedded IQ generation for compact image rejection architecture in multi-band millimeter-wave 5G communication

 #36
20220115996
2022-04-14

Circuit and a method for generating a radio frequency signal

 #37
20220109404
2022-04-07

Power amplifier bias modulation for low bandwidth envelope tracking

 #38
20220103127
2022-03-31

Precision high frequency phase adders

 #39
20220085766
2022-03-17

Multi-level envelope tracking with analog interface

 #40
20220085765
2022-03-17

Multi-level envelope tracking systems with adjusted voltage steps

 #41
20220085764
2022-03-17

Multi-level envelope tracking systems with separate DC and AC paths

 #42
20220085763
2022-03-17

METHOD AND CIRCUIT FOR POWER CONSUMPTION REDUCTION IN ACTIVE PHASE SHIFTERS

 #43
20220052646
2022-02-17

Delay-compensating power management circuit

 #44
20220014216
2022-01-13

Power tracker for multiple transmit signals sent simultaneously

 #45
20220007263
2022-01-06

METHOD AND SYSTEM FOR BASEBAND PREDISTORTION LINEARIZATION IN MULTI-CHANNEL WIDEBAND COMMUNICATION SYSTEMS

 #46
20220006428
2022-01-06

Radio frequency power amplifier

 #47
20210376794
2021-12-02

Method and circuit for power consumption reduction in active phase shifters

 #48
20210359651
2021-11-18

Digital controlled multi stage smart combiner

 #49
20210329527
2021-10-21

Distributed antenna system

 #50
20210320626
2021-10-14

Quadrature combined Doherty amplifiers

 #51
20210314210
2021-10-07

SYSTEM AND METHOD FOR DIGITAL MEMORIZED PREDISTORTION FOR WIRELESS COMMUNICATION

 #52
20210281228
2021-09-09

Apparatus and method for calibrating an envelope tracking lookup table

 #53
20210226590
2021-07-22

Gain transient response compensation

 #54
20210184632
2021-06-17

Apparatus and methods for bias switching of power amplifiers

 #55
20210167734
2021-06-03

Apparatus and methods for envelope tracking systems with automatic mode selection

 #56
20210167733
2021-06-03

Automated envelope tracking system

 #57
20210119658
2021-04-22

Low-power double-quadrature receiver

 #58
20210105029
2021-04-08

RADIO COMMUNICATION DEVICE

 #59
20210104989
2021-04-08

Amplifier having envelope control

 #60
20210099137
2021-04-01

Multi-level envelope tracking systems with adjusted voltage steps

 #61
20210099136
2021-04-01

Power amplifier bias modulation for low bandwidth envelope tracking

 #62
20210099135
2021-04-01

Multi-level envelope tracking with analog interface

 #63
20210099134
2021-04-01

Multi-level envelope tracking systems with separate DC and AC paths

 #64
20210099133
2021-04-01

Power amplifier bias modulation for multi-level supply envelope tracking

 #65
20210044259
2021-02-11

Radio frequency receiver, radio frequency transmitter, and communications device

 #66
20210006217
2021-01-07

Digital wireless transmitter with merged cell switching and linearization techniques

 #67
20200403661
2020-12-24

Envelope tracking power amplifier apparatus

 #68
20200395903
2020-12-17

Power amplifier and demodulator

 #69
20200382070
2020-12-03

Quadrature combined doherty amplifiers

 #70
20200366243
2020-11-19

Precision High Frequency Phase Adders

 #71
20200350867
2020-11-05

Power amplifier

 #72
20200336108
2020-10-22

Apparatus and methods for bias switching of power amplifiers

 #73
20200336107
2020-10-22

Multi-mode stacked amplifier

 #74
20200322209
2020-10-08

Method, device for compensating imbalance between I path and Q path of receiver, and non-transitory computer readable storage medium

 #75
20200313623
2020-10-01

Wideband Doherty high efficiency power amplifier

 #76
20200244231
2020-07-30

Cartesian feedback circuit

 #77
20200212848
2020-07-02

Tri-phasing modulation for efficient and wideband radio transmitter

 #78
20200169937
2020-05-28

Method and system for baseband predistortion linearization in multi-channel wideband communication systems

 #79
20200136575
2020-04-30

Multimode envelope tracking circuit and related apparatus

 #80
20200136572
2020-04-30

Digital power amplifier

 #81
20200136563
2020-04-30

Envelope tracking system

 #82
20200099343
2020-03-26

Apparatus and methods for envelope tracking systems with automatic mode selection

 #83
20200092787
2020-03-19

Distributed antenna system

 #84
20200052659
2020-02-13

Method and system for aligning signals widely spaced in frequency for wideband digital predistortion in wireless communication systems

 #85
20200044626
2020-02-06

Apparatuses and methods for shifting a digital signal by a shift time to provide a shifted signal

 #86
20200036335
2020-01-30

DYNAMIC ERROR VECTOR MAGNITUDE COMPENSATION

 #87
20200007092
2020-01-02

Amplification in presence of a variable antenna impedance

 #88
20190372533
2019-12-05

Wideband low noise amplifier (LNA) with a reconfigurable bandwidth for millimeter-wave 5G communication

 #89
20190363702
2019-11-28

Wide-band 360 degree phase shifter utilizing right-hand and left-hand transmission line switches for RF communications

 #90
20190363675
2019-11-28

Precision high frequency phase adders

 #91
20190341888
2019-11-07

Automated envelope tracking system

 #92
20190334743
2019-10-31

Image distortion correction in a wireless terminal

 #93
20190334504
2019-10-31

High order miller N-path filter

 #94
20190319585
2019-10-17

DYNAMIC ERROR VECTOR MAGNITUDE DUTY CYCLE CORRECTION

 #95
20190312604
2019-10-10

Broadband receiver for multi-band millimeter-wave wireless communication

 #96
20190296779
2019-09-26

Power tracker for multiple transmit signals sent simultaneously

 #97
20190288900
2019-09-19

System and method for digital memorized predistortion for wireless communication

 #98
20190288653
2019-09-19

Digital wireless transmitter with merged cell switching and linearization techniques

 #99
20190260414
2019-08-22

Low noise amplifiers with output limiting

 #100
20190260400
2019-08-22

Power amplification module

 #101
20190243403
2019-08-08

Programmable low dropout regulators with fast transient response when programming output voltage

 #102
20190222181
2019-07-18

Envelope tracking circuit

 #103
20190222176
2019-07-18

Envelope tracking circuit

 #104
20190214946
2019-07-11

MULTI-MODE POWER AMPLIFIERS WITH PHASE MATCHING

 #105
20190173441
2019-06-06

Method and system for a pseudo-differential low-noise amplifier at KU-band

 #106
20190173439
2019-06-06

Power amplifier circuit

 #107
20190165739
2019-05-30

Quadrature combined doherty amplifiers

 #108
20190165736
2019-05-30

Envelope trackers providing compensation for power amplifier output load variation

 #109
20190158046
2019-05-23

Quadrature amplifier having envelope control

 #110
20190149099
2019-05-16

Doherty amplifier having envelope control

 #111
20190115881
2019-04-18

Power amplifying device

 #112
20190110239
2019-04-11

Distributed antenna system

 #113
20190109613
2019-04-11

Envelope tracking system for transmitting a wide modulation bandwidth signal(s)

 #114
20190109566
2019-04-11

Nonlinear bandwidth compression circuitry

 #115
20190089309
2019-03-21

Multi-mode stacked amplifier

 #116
20190036487
2019-01-31

Four-way Doherty amplifier and mobile telecommunications base station

 #117
20190020531
2019-01-17

Transmission system and method

 #118
20190020315
2019-01-17

Apparatus and methods for envelope tracking systems with automatic mode selection

 #119
20190013991
2019-01-10

Transmitter

 #120
20190013398
2019-01-10

High power compound semiconductor field effect transistor devices with low doped drain

 #121
20190007240
2019-01-03

Image distortion correction in a wireless terminal

 #122
20190006997
2019-01-03

Apparatus and methods for multi-supply voltage power amplifiers

 #123
20180358941
2018-12-13

Capacitive loading mode measurement circuit with compensation of measurement errors due to parasitic sensor impedances

 #124
20180358931
2018-12-13

Power amplifier

 #125
20180341874
2018-11-29

Quantum processor, and method of quantum processing

 #126
20180337658
2018-11-22

RF phase shifting device

 #127
20180331703
2018-11-15

Radio frequency front-end circuit and communication device

 #128
20180331661
2018-11-15

APPARATUS AND METHODS FOR POWER AMPLIFIER BIASING

 #129
20180331659
2018-11-15

Envelope trackers providing compensation for power amplifier output load variation

 #130
20180331657
2018-11-15

RADIO FREQUENCY SYSTEM WITH SWITCH TO RECEIVE ENVELOPE

 #131
20180323771
2018-11-08

Phase shift precision calibration circuitry, vector sum phase shifter, and wireless communication device

 #132
20180323759
2018-11-08

Galvanically isolated amplifiers and related methods

 #133
20180316311
2018-11-01

Apparatus and methods for bias switching of power amplifiers

 #134
20180302054
2018-10-18

Apparatus and methods for biasing of power amplifiers

 #135
20180302042
2018-10-18

Power amplifier control method and apparatus, and power amplifier control system

 #136
20180302036
2018-10-18

Apparatus and methods for envelope tracking systems

 #137
20180287559
2018-10-04

Circuits for wireless communication on multiple frequency bands

 #138
20180279197
2018-09-27

METHOD AND SYSTEM FOR BASEBAND PREDISTORTION LINEARIZATION IN MULTI-CHANNEL WIDEBAND COMMUNICATION SYSTEMS

 #139
20180269836
2018-09-20

Precision high frequency phase adders

 #140
20180262219
2018-09-13

Digital transmitter

 #141
20180254749
2018-09-06

Doherty amplifier

 #142
20180241594
2018-08-23

Selective power amplifier

 #143
20180241347
2018-08-23

Digital dynamic bias circuit

 #144
20180234193
2018-08-16

Phase and amplitude signal sensing circuit for radio frequency (RF) transmitters

 #145
20180234060
2018-08-16

Circuit and a method for generating a radio frequency signal

 #146
20180183390
2018-06-28

Receiver calibration using power amplifier noise

 #147
20180175800
2018-06-21

RF power amplifier bias modulation with programmable stages

 #148
20180167056
2018-06-14

Apparatuses and methods for shifting a digital signal by a shift time to provide a shifted signal

 #149
20180167042
2018-06-14

Power amplifier and radio transmitter

 #150
20180157780
2018-06-07

Drift compensation

 #151
20180138861
2018-05-17

Dynamic error vector magnitude duty cycle correction

 #152
20180123518
2018-05-03

Multi-mode power amplifiers with phase matching

 #153
20180097481
2018-04-05

Fully integrated low-noise amplifier

 #154
20180091104
2018-03-29

Method and system for a pseudo-differential low-noise amplifier at Ku-band

 #155
20180083720
2018-03-22

Phase and amplitude signal sensing circuit for radio frequency (RF) transmitters

 #156
20180076772
2018-03-15

Apparatus and methods for envelope tracking systems with automatic mode selection

 #157
20180041204
2018-02-08

Switch with envelope injection

 #158
20180041170
2018-02-08

Radio frequency system with switch to receive envelope

 #159
20180013390
2018-01-11

Apparatus and a method for providing a supply control signal for a supply unit

 #160
20170373644
2017-12-28

System for monitoring the peak power for an RF power amplification and associated method of calculating peak value and of selecting supply voltage

 #161
20170359029
2017-12-14

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

 #162
20170317697
2017-11-02

Transmitter, signal synthesis circuit, and signal synthesis method

 #163
20170310512
2017-10-26

Selective power amplifier

 #164
20170302316
2017-10-19

Ultra-low-power RF receiver frontend with tunable matching networks

 #165
20170293485
2017-10-12

Direct digital synthesis of signals using maximum likelihood bit-stream encoding

 #166
20170288609
2017-10-05

Multi-mode stacked amplifier

 #167
20170244363
2017-08-24

Dynamic error vector magnitude compensation

 #168
20170230924
2017-08-10

Calibration techniques for envelope tracking power amplifiers

 #169
20170230106
2017-08-10

Outphasing amplifier

 #170
20170230014
2017-08-10

FULLY INTEGRATED LOW-NOISE AMPLIFIER

 #171
20170223632
2017-08-03

Apparatus and methods for envelope tracking systems

 #172
20170222859
2017-08-03

Digital quadrature modulator and switched-capacitor array circuit

 #173
20170222608
2017-08-03

Adaptive bias circuit for a radio frequency (RF) amplifier

 #174
20170212193
2017-07-27

Magnetic resonance imaging apparatus, radio frequency amplification system and method

 #175
20170207756
2017-07-20

Power amplification module

 #176
20170195972
2017-07-06

Automated envelope tracking system

 #177
20170187335
2017-06-29

Amplifying electronic circuit with reduced start-up time for a signal including quadrature components

 #178
20170179910
2017-06-22

Wideband amplifier circuits and methods

 #179
20170179889
2017-06-22

Apparatus and methods for envelope shaping in mobile devices

 #180
20170170851
2017-06-15

POWER TRACKER FOR MULTIPLE TRANSMIT SIGNALS SENT SIMULTANEOUSLY

 #181
20170155366
2017-06-01

Apparatus and methods for power amplifier biasing

 #182
20170149393
2017-05-25

Semiconductor device

 #183
20170141736
2017-05-18

Broadband envelope tracking

 #184
20170133991
2017-05-11

Class D amplifier using Fs/4 modulation and envelope tracking power supplies

 #185
20170133989
2017-05-11

Bias control for stacked transistor configuration

 #186
20170117855
2017-04-27

Power amplification system for radiofrequency communications

 #187
20170104456
2017-04-13

Transmitter and transmission method

 #188
20170093449
2017-03-30

Circuits for field-programmable receiver front ends

 #189
20170093355
2017-03-30

Apparatus and methods for biasing of power amplifiers

 #190
20170093354
2017-03-30

Single conversion receiver and communication system including same

 #191
20170093341
2017-03-30

Apparatus and methods for multi-supply voltage power amplifiers

 #192
20170093339
2017-03-30

Apparatus and methods for multi-mode power amplifiers

 #193
20170085232
2017-03-23

Power amplification module

 #194
20170063312
2017-03-02

Mixer impairment correction based on volterra series

 #195
20170055198
2017-02-23

Distributed antenna system

 #196
20170047953
2017-02-16

Apparatus and methods for envelope tracking systems

 #197
20170040960
2017-02-09

Amplifier for modulating the amplitude of an RF signal

 #198
20170033746
2017-02-02

Dynamic error vector magnitude duty cycle correction

 #199
20170005654
2017-01-05

Switching circuit

 #200
20160373144
2016-12-22

POWER AMPLIFICATION MODULE

 #201
20160373071
2016-12-22

Temperature compensation technique for envelope tracking system

 #202
20160365950
2016-12-15

Direct digital synthesis of signals using maximum likelihood bit-stream encoding

 #203
20160352295
2016-12-01

Method and system for a pseudo-differential low-noise amplifier at Ku-band

 #204
20160344351
2016-11-24

Method and system for aligning signals widely spaced in frequency for wideband digital predistortion in wireless communication systems

 #205
20160336901
2016-11-17

Apparatus and methods for wideband envelope tracking

 #206
20160322993
2016-11-03

Transmission device and transmission method

 #207
20160308559
2016-10-20

Digital frontend system for a radio transmitter and a method thereof

 #208
20160308501
2016-10-20

Electronic device for a radiofrequency signal reception chain, comprising a low-noise transimpedance amplifier stage

 #209
20160302164
2016-10-13

Selective power amplifier

 #210
20160277045
2016-09-22

Adjusting power amplifier stimuli based on output signals

 #211
20160276986
2016-09-22

Efficient smart wideband linear hybrid CMOS RF power amplifier

 #212
20160269210
2016-09-15

Method and system for baseband predistortion linearization in multi-channel wideband communication systems

 #213
20160268984
2016-09-15

Quaternary/ternary modulation selecting circuit and associated method

 #214
20160261239
2016-09-08

Apparatus and methods for envelope shaping in power amplifier systems

 #215
20160254788
2016-09-01

Using fractional delay computations to improve intermodulation performance

 #216
20160248462
2016-08-25

Frequency tuning of narrowband low noise amplifiers

 #217
20160248386
2016-08-25

Apparatus and methods for power amplifier bias circuits

 #218
20160241199
2016-08-18

Control systems and methods for power amplifiers operating in envelope tracking mode

 #219
20160233897
2016-08-11

Transmitter and method for transmission control in a technique of delta sigma modulating

 #220
20160226453
2016-08-04

Wireless apparatus and method for controlling voltage supplied to amplifier unit

 #221
20160190993
2016-06-30

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

 #222
20160190989
2016-06-30

Optimization methods for amplifier with variable supply power

 #223
20160164553
2016-06-09

Linear composite transmitter utilizing composite power amplification

 #224
20160164550
2016-06-09

Envelope tracking path delay fine tuning and calibration

 #225
20160164469
2016-06-09

Amplifier dynamic bias adjustment for envelope tracking

 #226
20160164468
2016-06-09

Amplifier dynamic bias adjustment for envelope tracking

 #227
20160126895
2016-05-05

SWITCHED MODE POWER AMPLIFIER WITH IDEAL IQ COMBINING

 #228
20160118941
2016-04-28

Amplification of a radio frequency signal

 #229
20160117430
2016-04-28

Baseband equivalent volterra series for behavioral modeling and digital predistortion of wideband transmitters

 #230
20160112032
2016-04-21

Reflective vector modulators

 #231
20160087727
2016-03-24

Optical modulator driver circuit and optical transmitter

 #232
20160080013
2016-03-17

Adaptive ISO-gain pre-distortion for an RF power amplifier operating in envelope tracking

 #233
20160079933
2016-03-17

Baseband equivalent volterra series for digital predistortion in multi-band power amplifiers

 #234
20160072647
2016-03-10

Direct digital synthesis of signals using maximum likelihood bit-stream encoding

 #235
20160056769
2016-02-25

Power amplification module

 #236
20160036395
2016-02-04

Apparatus and methods for overdrive protection of radio frequency amplifiers

 #237
20160014782
2016-01-14

Distributed antenna system

 #238
20160013764
2016-01-14

Amplifier device and wireless communication device

 #239
20160013757
2016-01-14

High efficiency and high linearity adaptive power amplifier for signals with high papr

 #240
20150381401
2015-12-31

Switched capacitor transmitter circuits and methods

 #241
20150381215
2015-12-31

Switched capacitor transmitter circuits and methods

 #242
20150381129
2015-12-31

Variable gain transimpedance amplifier

 #243
20150372652
2015-12-24

Multistage amplifier

 #244
20150349816
2015-12-03

Apparatus and method for removing noise of power amplifier in mobile communication system

 #245
20150333780
2015-11-19

System and method for null filling of IQ waveform

 #246
20150333704
2015-11-19

Method for class-B amplifier mismatch correction

 #247
20150326349
2015-11-12

System and method for digital memorized predistortion for wireless communication

 #248
20150326198
2015-11-12

Low-voltage analog variable gain amplifier with enhanced linearity

 #249
20150326184
2015-11-12

Apparatus and methods for envelope trackers

 #250
20150303954
2015-10-22

System, method, and apparatus for analog signal conditioning of high-speed data streams

 #251
20150303887
2015-10-22

Broadband microwave variable gain up-converter

 #252
20150280652
2015-10-01

Apparatus and a method for providing a supply control signal for a supply unit

 #253
20150270806
2015-09-24

Bias control for stacked transistor configuration

 #254
20150207464
2015-07-23

Transmission apparatus and transmission method

 #255
20150194934
2015-07-09

Quadrature modulator

 #256
20150194884
2015-07-09

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

 #257
20150180418
2015-06-25

Transmitting apparatus and transmission method

 #258
20150172081
2015-06-18

Baseband envelope predistorter

 #259
20150163084
2015-06-11

Receiving device, receiving method, and non-transitory computer-readable storage medium storing program

 #260
20150162940
2015-06-11

TIA-to-ADC interface with low-noise and a wide-range of passive gain control

 #261
20150155836
2015-06-04

Nonlinear load pre-distortion for open loop envelope tracking

 #262
20150155835
2015-06-04

Reduced power amplifier load impact for open loop envelope tracking

 #263
20150146820
2015-05-28

Transmitter linearization

 #264
20150146819
2015-05-28

Envelope path pre-distortion for wideband transmitter systems

 #265
20150124907
2015-05-07

Hardware-efficient signal-component separator for outphasing power amplifiers

 #266
20150124904
2015-05-07

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Controlled power boost for envelope tracker

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