ClassID:

219714

H03F2201/3233 - page 2 - CPC Classification

Classification description:

Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by; Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion Adaptive predistortion using lookup table, e.g. memory, RAM, ROM, LUT, to generate the predistortion

Recent Application in this class:
#301
20100097137
2010-04-22

Lookup table generation method and related device for a predistorter

#302
20100093290
2010-04-15

Multi-dimensional Volterra series transmitter linearization

#303
20100090762
2010-04-15

Minimum feedback radio architecture with digitally configurable adaptive linearization

#304
20100074367
2010-03-25

ADAPTIVE COMBINER ERROR CALIBRATION ALGORITHMS IN ALL-DIGITAL OUTPHASING TRANSMITTER

#305
20100056082
2010-03-04

Communication system with frequency-adaptive predistorter design

#306
20100048149
2010-02-25

Techniques for adaptive predistortion direct current offset correction in a transmitter

#307
20100035554
2010-02-11

Adaptive complex gain predistorter for a transmitter

#308
20100020899
2010-01-28

Method and apparatus for improving digital predistortion correction with amplifier device biasing

#309
20100014609
2010-01-21

Distortion correction control apparatus and distortion correction control method

#310
20100001795
2010-01-07

Baseband predistortion device and method

#311
20090309657
2009-12-17

Predistortion apparatus, system, and method

#312
20090285194
2009-11-19

Efficient Peak Cancellation Method for Reducing the Peak-To-Average Power Ratio in Wideband Communication Systems

#313
20090279641
2009-11-12

Delay Detection Circuit, Distortion Compensation Circuit, And Communication Apparatus

#314
20090256630
2009-10-15

Method of power amplifier predistortion adaptation using compression detection

#315
20090238294
2009-09-24

Transmission apparatus and transmission method

#316
20090237158
2009-09-24

Electronic device having a predistortion filter and related methods

#317
20090224828
2009-09-10

Distortion compensation amplification device and correction method

#318
20090195309
2009-08-06

Distortion compensator apparatus, amplifier apparatus, transmitter, and method of compensating distortion

#319
20090190647
2009-07-30

Distortion compensating apparatus and power amplifier apparatus

#320
20090189692
2009-07-30

Predistorter

#321
20090184764
2009-07-23

Power supply providing ultrafast modulation of output voltage

#322
20090174473
2009-07-09

Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters

#323
20090160550
2009-06-25

Predistorter

#324
20090146736
2009-06-11

Baseband-derived RF digital predistortion

#325
20090140806
2009-06-04

Distortion-compensation amplification apparatus and distortion compensation method

#326
20090115513
2009-05-07

Predistorter

#327
20090111399
2009-04-30

Adaptive pre-distortion with interference detection and mitigation

#328
20090104882
2009-04-23

RADIO TRANSMISSION APPARATUS

#329
20090096521
2009-04-16

Power amplifier predistortion methods and apparatus using envelope and phase detector

#330
20090085658
2009-04-02

Analog power amplifier predistortion methods and apparatus

#331
20090054016
2009-02-26

Apparatus and method for adaptive cartesian transmitter linearization and wireless transmitter employing the same

#332
20090051426
2009-02-26

Large-dynamic-range lookup table for a transmitter predistorter and system and method employing the same

#333
20090051425
2009-02-26

Predistortion system and method based on look up table interpolation

#334
20080309405
2008-12-18

Power amplifier pre-distortion

#335
20080298500
2008-12-04

Systems, apparatus, and methods for performing digital pre-distortion with feedback signal adjustment

#336
20080268795
2008-10-30

Predistortion circuit for a transmit system

#337
20080265996
2008-10-30

Digital hybrid mode power amplifier system

#338
20080243899
2008-10-02

Systems, apparatus and method for performing digital pre-distortion based on lookup table gain values

#339
20080224769
2008-09-18

Power supply providing ultrafast modulation of output voltage

#340
20080204136
2008-08-28

Distortion compensation apparatus

#341
20080197925
2008-08-21

Distortion compensation amplifying apparatus

#342
20080174365
2008-07-24

Power amplifier time-delay invariant predistortion methods and apparatus

#343
20080159435
2008-07-03

Predistortion correction loop-back based on high linearity and low linearity modes

#344
20080152037
2008-06-26

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

#345
20080146168
2008-06-19

Methods of Enhancing Power Amplifier Linearity

#346
20080139141
2008-06-12

METHOD AND SYSTEM FOR ESTIMATING AND COMPENSATING NON-LINEAR DISTORTION IN A TRANSMITTER USING DATA SIGNAL FEEDBACK

#347
20080130798
2008-06-05

Delay regulating device

#348
20080130789
2008-06-05

System and methods for digitally correcting a non-linear element using a digital filter for predistortion

#349
20080130788
2008-06-05

System and method for computing parameters for a digital predistorter

#350
20080130787
2008-06-05

System and method for digitally correcting a non-linear element using a multiply partitioned architecture for predistortion

#351
20080123770
2008-05-29

Apparatus and method providing non-linear adaptive signal tracking

#352
20080096497
2008-04-24

Adaptive predistortion for a transmit system

#353
20080094139
2008-04-24

Power amplifier with distortion compensation circuit

#354
20080084244
2008-04-10

Method And System For Linearizing The Characteristic Curve Of A Power Amplifier

#355
20080068191
2008-03-20

Amplifier failure detection apparatus

#356
20080051042
2008-02-28

Adaptive predistortion for controlling an open loop power amplifier

#357
20080032656
2008-02-07

Controllable power operational transconductance amplifier

#358
20070296495
2007-12-27

Distortion compensating apparatus

#359
20070296494
2007-12-27

Predistorter

#360
20070290748
2007-12-20

Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters

#361
20070274471
2007-11-29

Distortion compensating apparatus and method

#362
20070273439
2007-11-29

Apparatus and method of dynamically adapting the LUT spacing for linearizing a power amplifier

#363
20070253566
2007-11-01

Distortion compensating apparatus and method

#364
20070241812
2007-10-18

High efficiency linearization power amplifier for wireless communication

#365
20070223621
2007-09-27

Method and apparatus for signal power ramp-up in a communication transmission

#366
20070200625
2007-08-30

Distortion compensating apparatus and method

#367
20070188225
2007-08-16

Distortion compensating apparatus and method

#368
20070153884
2007-07-05

Closed-loop receiver feedback pre-distortion

#369
20070133713
2007-06-14

Power amplifier pre-distorter training

#370
20070087704
2007-04-19

Predistorter for use in a wireless transmitter

#371
20070080749
2007-04-12

Adaptive predistortion for a transmit system with gain, phase and delay adjustments

#372
20070030920
2007-02-08

Address generating device and method of generating address

#373
20070018722
2007-01-25

Adaptive digital pre-distortion system

#374
20070008033
2007-01-11

Predistortion amplifier for compensation distortion

#375
20060262878
2006-11-23

Apparatus and method for modulating and digitally predistorting a signal in a multiple modulation schemes

#376
20060240786
2006-10-26

Method and system for broadband predistortion linearization

#377
20060229036
2006-10-12

Method for predistortion of a signal, and a transmitting device having digital predistortion, in particular for mobile radio

#378
20060215783
2006-09-28

Distortion compensation apparatus

#379
20060209983
2006-09-21

Distortion compensation apparatus

#380
20060198464
2006-09-07

Distortion compensation apparatus

#381
20060181345
2006-08-17

Adaptive predistortion for a transmit system

#382
20060158255
2006-07-20

Adaptive predistortion for a transmit system with gain, phase and delay adjustments

#383
20060125560
2006-06-15

Adaptive predistortion for a transmit system with gain, phase and delay adjustments

#384
20060109052
2006-05-25

Adaptive predistortion for a transmit system

#385
20060071711
2006-04-06

Arbitrary waveform predistortion table generation

#386
20060046665
2006-03-02

System and method for digital memorized predistortion for wireless communication

#387
20060040625
2006-02-23

Transmission power amplifier unit

#388
20060008027
2006-01-12

Method for the adaptive pre-distortion of digital raw data values and device for carrying out said method

#389
20050253745
2005-11-17

Digital predistortion apparatus and method for a wideband power amplifier

#390
20050245211
2005-11-03

Nonlinear distortion compensation circuit with feedback and baseband reference signal that are phase and amplitude controllable

#391
20050226346
2005-10-13

Distortion compensating apparatus

#392
20050190857
2005-09-01

Digital predistortion system and method for linearizing an RF power amplifier with nonlinear gain characteristics and memory effects

#393
20050164656
2005-07-28

Distortion compensation amplifying apparatus and base station

#394
20050162225
2005-07-28

Multi-band look-up table type predistorter

#395
20050156662
2005-07-21

Amplifier predistortion and autocalibration method and apparatus

#396
20050141639
2005-06-30

Power booster using peak suppression and pre-distortion for terminal radios

#397
20050104758
2005-05-19

Distortion compensator

#398
20050101258
2005-05-12

Distortion compensation apparatus

#399
20050101254
2005-05-12

Distortion compensating amplifier

#400
20050088230
2005-04-28

Amplifier pre-distortion processing based on composite look-up tables

#401
20050085199
2005-04-21

Method and apparatus for predistortion training in an amplifier utilizing predistortion

#402
20050085198
2005-04-21

Power boosting technique for wireless multi-carrier power amplifier

#403
20050073361
2005-04-07

Distortion compensator

#404
20050057303
2005-03-17

Table-based pre-distortion for amplifier systems

#405
20050047521
2005-03-03

Distortion compensating apparatus

#406
20050017801
2005-01-27

Elimination of peak clipping and improved efficiency for RF power amplifiers with a predistorter

#407
20050008096
2005-01-13

Non-linear compensation circuit, transmission apparatus and non-linear compensation method

#408
20050007193
2005-01-13

Power amplifying apparatus and method using pre-distortion and radio communication system including the same apparatus

#409
20050003770
2005-01-06

Predistortion circuit for a transmit system

#410
20050002470
2005-01-06

Predistortion circuit for a transmit system

#411
20050001684
2005-01-06

Digital predistortion system and method for correcting memory effects within an RF power amplifier

#412
20050001679
2005-01-06

Adaptive predistortion for a transmit system with gain, phase and delay adjustments

#413
20050001678
2005-01-06

Adaptive predistortion for a transmit system with gain, phase and delay adjustments

#414
20050001677
2005-01-06

Adaptive predistortion for a transmit system

#415
20050001676
2005-01-06

Adaptive predistortion for transmit system with gain, phase and delay adjustments

#416
20050001675
2005-01-06

Adaptive predistortion for a transmit system with gain, phase and delay adjustments

#417
20050001674
2005-01-06

Adaptive predistortion for a transmit system

#418
17974072
2024-07-09

Method and device for digital compensation of dynamic distortion in high-speed transmitters

#419
17239395
2023-01-24

Time constant tracking for digital pre-distortion

#420
17185427
2023-06-06

Digital pre-distortion compensation in a wireless communications system

#421
16903378
2022-06-07

Digital communications circuits and systems

#422
16579884
2020-12-08

Digital pre-distortion circuit and digital pre-distortion method

#423
15868295
2019-06-11

Frequency-shaped digital predistortion

#424
15829683
2019-03-19

Tuned amplifier matching based on band switch setting

#425
14582212
2015-09-08

Digital pre-distorter

#426
14324523
2016-08-30

Apparatus and methods for digital predistortion