ClassID:

220223

H03G3/001 - page 2 - CPC Classification

Classification description:

Gain control in amplifiers or frequency changers without distortion of the input signal Digital control of analog signals

Recent Application in this class:
#301
20080315949
2008-12-25

Variable gain amplifier insensitive to process voltage and temperature variations

#302
20080297251
2008-12-04

Digitally adjusted variable gain amplifier (VGA) using switchable differential pairs

#303
20080290966
2008-11-27

Adaptive radio transceiver with filtering

#304
20080284517
2008-11-20

Variable gain amplifier

#305
20080279315
2008-11-13

Wireless receiving apparatus and wireless receiving method

#306
20080273719
2008-11-06

Method and apparatus for controlling audio volume when switching electronic product channels

#307
20080265991
2008-10-30

Gain control module and applications thereof

#308
20080253587
2008-10-16

METHOD FOR AUTOMATICALLY ADJUSTING AUDIO VOLUME AND AUDIO PLAYER

#309
20080240259
2008-10-02

Gain control method and apparatus

#310
20080224779
2008-09-18

Programmable gain amplifier with noise cancellation

#311
20080192958
2008-08-14

Audio system

#312
20080191313
2008-08-14

Adaptive radio transceiver with floating mosfet capacitors

#313
20080182526
2008-07-31

Adaptive radio transceiver with an antenna matching circuit

#314
20080180175
2008-07-31

Variable gain amplifier and control method thereof

#315
20080157829
2008-07-03

Programmable amplitude compensation circuit

#316
20080153439
2008-06-26

Apparatus and method to adjust and filter current DAC signals

#317
20080150632
2008-06-26

Gigabit ethernet transceiver with analog front end

#318
20080144748
2008-06-19

Method and system for providing analog control of digital gain in a wireless device

#319
20080125068
2008-05-29

Pseudo digital gain control for broadband tuner

#320
20080123873
2008-05-29

Digital compensation of analog volume control gain in a digital audio amplifier

#321
20080094267
2008-04-24

Voltage conversion device having non-linear gain

#322
20080094138
2008-04-24

Monotonic and voltage supply independent automatic gain control amplifier

#323
20080088347
2008-04-17

Amplitude compensation circuit with programmable buffers

#324
20080063220
2008-03-13

Audio control method and audio processing system

#325
20080048781
2008-02-28

Circuit arrangement and method for setting an analog output signal

#326
20080043887
2008-02-21

Combined discrete automatic gain control (AGC) and DC estimation

#327
20080008336
2008-01-10

Automatic gain control circuit

#328
20080007340
2008-01-10

Digitally adjusted variable gain amplifier (VGA) using switchable differential pairs

#329
20070296490
2007-12-27

dB-linear analog variable gain amplifier (VGA) realization system and method

#330
20070290758
2007-12-20

Electronic volume apparatus

#331
20070285170
2007-12-13

Transmitter power control loop for high-speed wireless LANs

#332
20070285154
2007-12-13

Adaptive radio transceiver with filtering

#333
20070275676
2007-11-29

DAC based switching power amplifier

#334
20070273424
2007-11-29

Digital attenuator circuits and methods for use thereof

#335
20070273354
2007-11-29

Control circuit for diode based RF circuits

#336
20070269057
2007-11-22

SOUND REPRODUCTION DEVICE AND METHOD FOR AUTOMATIC GAIN CONTROL

#337
20070244587
2007-10-18

Sound Volume Converting Apparatus

#338
20070230615
2007-10-04

Reduced distortion amplifier

#339
20070223738
2007-09-27

Volume-based adaptive biasing

#340
20070210864
2007-09-13

Signal amplifier

#341
20070206684
2007-09-06

Gain control method and apparatus

#342
20070206523
2007-09-06

Power control feedback loop for adjusting a magnitude of an output signal

#343
20070200628
2007-08-30

Gain boosting for tuned differential LC circuits

#344
20070194959
2007-08-23

Receiving method with digital level adjustment in the analog section and incremental level change in the digital section

#345
20070194848
2007-08-23

Variable gain amplifier

#346
20070188236
2007-08-16

Automatic gain control with three states of operation

#347
20070176664
2007-08-02

Programmable gain attenuator for track and hold amplifiers

#348
20070172084
2007-07-26

Method of controlling volume of reproducing apparatus and reproducing apparatus using the same

#349
20070164823
2007-07-19

Automatic gain control apparatus

#350
20070146067
2007-06-28

Switching amplifier

#351
20070139118
2007-06-21

Fast-setting digital automatic gain control

#352
20070129030
2007-06-07

High dynamic range pre-power amplifier incorporating digital attenuator

#353
20070126525
2007-06-07

Dual path attenuation system

#354
20070110260
2007-05-17

Audio processing system with function of automatic gain control and method thereof

#355
20070109053
2007-05-17

Method and circuit for controlling amplification

#356
20070105517
2007-05-10

Programmable attenuator using digitally controlled CMOS switches

#357
20070085606
2007-04-19

Digital time variable gain circuit for non-destructive test instrument

#358
20070076828
2007-04-05

Apparatus for automatic gain control and wireless receiver employing the same

#359
20070049205
2007-03-01

Adaptive radio transceiver with an antenna matching circuit

#360
20070046375
2007-03-01

Method and device for automatic gain control with limited jitter

#361
20070018883
2007-01-25

Systems and methods for automatic gain control for multichannel receivers

#362
20070013567
2007-01-18

Transmission circuit and communication device

#363
20060274620
2006-12-07

Processing an information carrying signal

#364
20060261895
2006-11-23

Automatic gain control using multi-comparators

#365
20060244549
2006-11-02

Attenuator, variable gain amplifier using the same, and electronic equipment

#366
20060244530
2006-11-02

Digitally adjustable variable gain amplifier (VGA) using switchable differential pairs

#367
20060238256
2006-10-26

Gigabit ethernet transceiver with analog front end

#368
20060238255
2006-10-26

Automatic gain control with three states of operation

#369
20060229044
2006-10-12

Combined discrete automatic gain control (AGC) and DC estimation

#370
20060215855
2006-09-28

Addressable amplified speaker assembly and method for addressing the same

#371
20060202755
2006-09-14

Gigabit ethernet transceiver with analog front end

#372
20060194555
2006-08-31

Circuit arrangement and method for compensating for abrupt signal level changes in amplification devices

#373
20060192614
2006-08-31

Gigabit ethernet transceiver with analog front end

#374
20060183451
2006-08-17

Method and system for continuously compensating for phase variations introduced into a communication signal by automatic gain control adjustments

#375
20060181343
2006-08-17

Gain controlled amplifier and cascoded gain controlled amplifier based on the same

#376
20060147049
2006-07-06

Sound pressure level limiter with anti-startle feature

#377
20060145762
2006-07-06

Gain boosting for tuned differential LC circuits

#378
20060120492
2006-06-08

Front end automatic gain control circuit using a control word generator

#379
20060105735
2006-05-18

Method and system for compensation of DC offset in an RF receiver

#380
20060097792
2006-05-11

Variable gain amplifier

#381
20060092017
2006-05-04

Radio wave detection device

#382
20060067543
2006-03-30

Electronic volume control apparatus

#383
20060066466
2006-03-30

Hierarchical parallel pipelined operation of analog and digital circuits

#384
20060049875
2006-03-09

Controllable amplifier circuit with a variable discrete-value gain, use of the amplifier circuit and method for operation of an amplifier whose gain can be adjusted in discrete values

#385
20060034401
2006-02-16

Apparatus and method for controlling a digital automatic gain controller in an orthogonal frequency division multiple access communication system

#386
20060022748
2006-02-02

Variable gain amplifier circuit and radio machine

#387
20060015551
2006-01-19

Data processing apparatus and scheme for signal measurement

#388
20060014508
2006-01-19

Device and method for determining the level of an input signal intended to be applied to a receiving system

#389
20060012720
2006-01-19

Audio system circuitry for automatical sound level control and a television therewith

#390
20060003726
2006-01-05

Automatic gain control using signal and interference power to obtain extended blocking performance

#391
20050276359
2005-12-15

Gain control for a receiver in a multi-carrier communication system

#392
20050260964
2005-11-24

Amplifier assembly, receiver comprising said assembly and method for operating a programmable amplifier

#393
20050258896
2005-11-24

Variable gain amplifier

#394
20050239427
2005-10-27

Gain control method, gain controller, receiver having the gain controller, and mobile telephone

#395
20050225390
2005-10-13

Amplifier having switchable negative feedback

#396
20050195039
2005-09-08

Radio frequency variable gain amplifier with linearity insensitive to gain

#397
20050189993
2005-09-01

Gigabit Ethernet transceiver with analog front end

#398
20050186925
2005-08-25

Adaptive radio transceiver with floating MOSFET capacitors

#399
20050168279
2005-08-04

Large dynamic range programmable gain attenuator

#400
20050168261
2005-08-04

High linearity large bandwidth, switch insensitive, programmable gain attenuator

#401
20050162220
2005-07-28

Adjustable bandwidth high pass filter for large input signal, low supply voltage applications

#402
20050153664
2005-07-14

Adaptive radio transceiver with an antenna matching circuit

#403
20050143942
2005-06-30

Multi-channel amplifier having programmable operational characteristics controlled with a serial interface

#404
20050141732
2005-06-30

Amplifying apparatus

#405
20050136865
2005-06-23

Power amplifier with digital power control and associated methods

#406
20050127993
2005-06-16

Automatic gain control for a multi-stage gain system

#407
20050123128
2005-06-09

Gain control

#408
20050123072
2005-06-09

Method and apparatus to implement DC offset correction in a sigma delta converter

#409
20050110566
2005-05-26

Method and apparatus for automatic gain control

#410
20050093624
2005-05-05

Systems and methods for controlling output power in a communication device

#411
20050078840
2005-04-14

Methods and systems for determining audio loudness levels in programming

#412
20050078775
2005-04-14

Mitigating the impact of phase steps

#413
20050063533
2005-03-24

Microprocessor-controlled full-duplex speakerphone using automatic gain control

#414
20050058228
2005-03-17

Staggered AGC with digitally controlled VGA

#415
20050047533
2005-03-03

Receiver with automatic gain control that operates with multiple protocols and method thereof

#416
20050030099
2005-02-10

AGC circuit

#417
17854970
2025-07-22

Constant-gain bias circuit

#418
17081474
2022-03-22

Dynamic automatic gain controller configuration in multiple input and multiple output receivers

#419
16700371
2020-10-06

Reducing power consumption in a receiver of a communications device

#420
16162431
2020-03-17

Charge-scaling multiplier circuit

#421
16042034
2019-04-02

Voice coil temperature control based on an estimated voice coil temperature and a threshold

#422
15975382
2019-10-01

Low noise broadband amplifier with resistive matching

#423
15850921
2019-11-05

Power mitigation for loudspeaker amplifiers

#424
15469614
2018-04-17

Speaker volume preference learning

#425
15418487
2018-07-03

Open-loop linear VGA

#426
15200783
2018-11-27

Apparatus for and method of generating output signal based on detected load resistance value

#427
14529258
2019-03-12

Systems and methods for processing and recording audio

#428
14320509
2016-04-19

LNA gain adaption based on received signal strength of signals conforming to different communication protocols

#429
14152515
2015-06-09

Amplifying system

#430
14083972
2016-07-12

Enhancement of dynamic range of audio signal path

#431
13753228
2015-11-17

Enhancing audio at a network-accessible computing platform

#432
13048428
2016-05-10

System and method for generating multimedia accompaniments to broadcast data