| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 03/02/2011 | EP2290831A2 Transmission device and transmission method |
| 03/02/2011 | EP2290815A2 Method and system for reducing effects of noise producing artifacts in a voice codec |
| 03/02/2011 | EP2290814A1 Amplifier for controlling gain and optical module |
| 03/02/2011 | EP2290813A1 Sound volume adjusting apparatus |
| 03/02/2011 | EP1969721B1 Telecommunications terminal and method of operation of the terminal |
| 03/01/2011 | US7899424 Transmitter power amplifier ramping method |
| 03/01/2011 | US7899414 Control of power amplifiers in devices using transmit beamforming |
| 03/01/2011 | US7899192 Method for dynamically adjusting the spectral content of an audio signal |
| 03/01/2011 | US7899141 Receiver for receiving radio frequency signals |
| 03/01/2011 | US7898335 Amplifier circuit |
| 03/01/2011 | US7898334 Amplifier with output filtering |
| 03/01/2011 | US7898326 Device and method for amplifying radiocommunication signals |
| 03/01/2011 | US7897900 Imager system with gain control means |
| 02/24/2011 | WO2011022553A1 Protection circuit for power amplifier |
| 02/24/2011 | US20110044475 Audio adapter, earphone and speaker box |
| 02/24/2011 | US20110044474 System and Method for Adjusting an Audio Signal Volume Level Based on Whom is Speaking |
| 02/24/2011 | US20110044473 Sound source playing apparatus for compensating output sound source signal and method of compensating sound source signal output from sound source playing apparatus |
| 02/24/2011 | US20110044461 Apparatus and method for computing control information for an echo suppression filter and apparatus and method for computing a delay value |
| 02/24/2011 | US20110043282 Rf power amplifier system with impedance modulation |
| 02/23/2011 | EP2288022A2 Audio signal processing apparatus, audio signal processing method, and communication terminal |
| 02/23/2011 | EP1354454B1 Adaptive filtering for wireless communication |
| 02/22/2011 | US7894785 Amplifier assembly, receiver comprising said assembly and method for operating a programmable amplifier |
| 02/22/2011 | US7894615 Attenuator device for amplified musical instruments |
| 02/22/2011 | US7893769 Power amplifier, method for controlling power amplifier, and wireless communication apparatus |
| 02/22/2011 | US7893768 Automatic gain control |
| 02/22/2011 | US7893763 Apparatus and method for power added efficiency optimization of high amplification applications |
| 02/22/2011 | US7893761 Monotonic and voltage supply independent automatic gain control amplifier |
| 02/17/2011 | WO2011020106A1 System and method for interpolating digitally-controlled amplifier gain |
| 02/17/2011 | WO2011019339A1 System for increasing perceived loudness of speakers |
| 02/17/2011 | US20110038491 Passive sound pressure level limiter |
| 02/17/2011 | US20110038490 System for increasing perceived loudness of speakers |
| 02/16/2011 | EP2284996A1 Closed loop power control of non-constant envelope waveforms using sample/hold |
| 02/16/2011 | EP2284990A2 High linearity variable gain amplifier |
| 02/16/2011 | CN201750404U System for automatically detecting signal source |
| 02/16/2011 | CN101977260A Voice frequency regulating method and device |
| 02/16/2011 | CN101976327A Barcode scanner and method for detecting barcode |
| 02/15/2011 | US7889008 Programmable gain MOS amplifier |
| 02/10/2011 | WO2010148087A3 Methods and apparatus for initial acquisition in a communication system |
| 02/10/2011 | US20110033065 Automatic and dynamic noise cancellation for microphone-speaker combinations |
| 02/10/2011 | US20110033057 Method and Apparatus for Distortion of Audio Signals and Emulation of Vacuum Tube Amplifiers |
| 02/10/2011 | US20110032036 Performance tuning using encoded performance parameter information |
| 02/10/2011 | US20110030452 Knock detection system and method for an amplifier control for a knock signal |
| 02/10/2011 | DE102010032447A1 Multistage audio amplifier for amplifying audio signals in e.g. super audio compact disk player, has source selector switch with signal switching function for transferring input signals that are transferred to impedance converter stage |
| 02/09/2011 | EP2282403A2 Portable audio device providing automated control of audio volume parameters for hearing protection |
| 02/09/2011 | CN101969314A Automatic gain control circuit for zero intermediate frequency receiver |
| 02/09/2011 | CN101969300A Gain adjustment method of D-class power amplifier |
| 02/09/2011 | CN101969299A Volume adjusting method and electronic equipment |
| 02/09/2011 | CN101431318B Automatic gain control device and its control method |
| 02/08/2011 | US7885402 Gain control |
| 02/03/2011 | WO2010099237A4 Speaker distortion reduction system and method |
| 02/03/2011 | US20110026737 Method and apparatus for controlling volume in an electronic machine |
| 02/03/2011 | US20110026571 Automatic gain controller, transceiver and automatic gain-control method thereof |
| 02/03/2011 | US20110025421 Step variable gain amplifier |
| 02/03/2011 | US20110025420 Method of controlling semiconductor device, signal processing method, semiconductor device, and electronic apparatus |
| 02/03/2011 | US20110023691 Musical performance-related information output device, system including musical performance-related information output device, and electronic musical instrument |
| 02/02/2011 | EP2280480A1 Low power regulated ampliflier in a transponder |
| 02/02/2011 | CN201733426U Intelligent sound volume controller of automobile sound system |
| 02/02/2011 | CN201733282U Self-adapting amplifier circuit with variable gain and time varying gain |
| 02/02/2011 | CN1960175B Method and apparatus to control output power of a power amplifier and audio player having the same |
| 02/02/2011 | CN101965682A Multi-mode power amplifiers |
| 02/02/2011 | CN101964635A Automatic gain control method for digital signal |
| 02/02/2011 | CN101964634A Variable gain filter circuit for WCDMA and GSM multi-mode transmitter |
| 02/02/2011 | CN101960941A Laser control land leveling receiver circuit |
| 02/02/2011 | CN101482704B Alignment light intensity signal collection and demodulation apparatus |
| 02/01/2011 | US7881674 System and method for antenna diversity using equal power joint maximal ratio combining |
| 02/01/2011 | US7881479 Audio processing method and sound field reproducing system |
| 02/01/2011 | US7880542 Incremental gain amplifier |
| 01/27/2011 | WO2011011219A1 Adaptive gain control for digital audio samples in a media stream |
| 01/27/2011 | US20110021241 Method and system for audio system volume control |
| 01/27/2011 | US20110019839 Adaptive gain control for digital audio samples in a media stream |
| 01/27/2011 | US20110018637 Radiofrequency signal power amplification method and device |
| 01/27/2011 | US20110018630 Automatic gain control loop with hysteresis switching |
| 01/27/2011 | DE102010023823A1 Verfahren und Systeme zum Steuern der Lautstärke von Infotainment-Einheiten von Fahrzeugen Methods and systems for controlling the volume of infotainment units of vehicles |
| 01/27/2011 | CA2768775A1 Adaptive gain control for digital audio samples in a media stream |
| 01/26/2011 | EP2278706A2 High linearity variable gain amplifier |
| 01/26/2011 | EP2277261A1 Amplifier design with biasing and power control aspects |
| 01/26/2011 | CN201726364U Audio power amplifier with audio signal control switch |
| 01/26/2011 | CN1784837B Method and arrangement for setting the transmission power of a mobile communication device |
| 01/26/2011 | CN101958694A Low power consumption automatic gain control method suitable for ASK analog receiver |
| 01/26/2011 | CN101958693A Volume-adjusting device and method |
| 01/26/2011 | CN101453197B Gain regulating circuit |
| 01/26/2011 | CN101394151B Automatic gain compensation and linear control method and device for power amplifier |
| 01/25/2011 | US7877072 System and method for adaptively controlling receiver gain switch points |
| 01/25/2011 | US7876914 Processing audio data |
| 01/25/2011 | US7876909 Efficient filter for artificial ambience |
| 01/25/2011 | US7876520 Programmable high pass amplifier for perpendicular recording systems |
| 01/25/2011 | US7876157 Power amplifier bias circuit having controllable current profile |
| 01/25/2011 | US7876156 Radio frequency (RF) power amplifier and RF power amplifier apparatus |
| 01/25/2011 | US7876151 R/2R programmable gate array |
| 01/20/2011 | WO2010138091A3 Electronic potentiometer |
| 01/20/2011 | WO2010093917A3 Digital sound leveling device and method to reduce the risk of noise induced hearing loss |
| 01/20/2011 | US20110014873 Wireless communication terminal and sound volume control method |
| 01/20/2011 | US20110013786 Multichannel mixer having multipurpose controls and meters |
| 01/20/2011 | US20110013785 Apparatus and method for controlling a portable terminal |
| 01/20/2011 | US20110013784 Device and method for compensating supply voltage from power supply and electronic apparatus |
| 01/20/2011 | US20110012679 High efficiency microwave amplifier |
| 01/19/2011 | CN101953067A Gain partitioning in a receiver |
| 01/19/2011 | CN101951236A Digital variable gain amplifier |
| 01/19/2011 | CN101951235A Method and device for automatically controlling voice volume of parking lot management system |
| 01/19/2011 | CN101072058B Apparatus for increasing receiver immunity to interference and receiver circuit |