| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 03/09/2010 | US7675380 Integrated digitally controlled linear-in-decibels attenuator |
| 03/09/2010 | US7675360 Power control circuit and power control method |
| 03/09/2010 | CA2502974C Howling frequency component emphasis method and apparatus |
| 03/04/2010 | WO2009142903A3 Rms detector with automatic gain control |
| 03/04/2010 | US20100054499 Apparatus and method for controlling audio output, and mobile terminal system using the same |
| 03/04/2010 | US20100054498 Method and system for audio level detection and control |
| 03/04/2010 | US20100054497 Techniques for Customizing Control of Volume Level in Device Playback |
| 03/04/2010 | US20100054456 Method and apparatus for controlling the transmit volume level of a speakerphone |
| 03/04/2010 | US20100052789 Power Amplifier With Output Power Control |
| 03/04/2010 | US20100052786 Automatic gain control apparatus and technique |
| 03/03/2010 | CN201418062Y Human body induction control device for volume of medical equipment |
| 03/03/2010 | CN101662265A Volume drive-by-wire device and method thereof |
| 03/02/2010 | US7672470 Audio/video device having a volume control function for an external audio reproduction unit by using volume control buttons of a remote controller and volume control method therefor |
| 03/02/2010 | US7672462 Method and system for acoustic shock protection |
| 03/02/2010 | US7672359 Spread-spectrum receivers with extended dynamic range |
| 03/02/2010 | US7671681 Gigabit ethernet transceiver with analog front end |
| 03/02/2010 | US7671680 Electronic circuit |
| 03/02/2010 | US7671674 Amplifier circuit with automatic gain correction |
| 02/25/2010 | US20100046772 Sound level control |
| 02/25/2010 | US20100046771 Multiple-use acoustic port |
| 02/25/2010 | US20100046765 System for processing audio data |
| 02/25/2010 | US20100046764 Method and Apparatus for Detecting and Processing Audio Signal Energy Levels |
| 02/25/2010 | US20100046601 High speed receive equalizer architecture |
| 02/25/2010 | US20100045383 Variable gain circuit |
| 02/25/2010 | US20100045374 Gain adjustment device and method thereof |
| 02/25/2010 | US20100045371 Amplification control device, test signal generation module, test device, amplification control method, program, and recording medium |
| 02/25/2010 | DE102009018993A1 Verstärkeranordnung Amplifier arrangement |
| 02/24/2010 | EP2157702A2 Method and system for processing signals in a wireless system |
| 02/24/2010 | EP2156553A2 Audio signal amplification |
| 02/24/2010 | EP2156551A1 Configurable, variable gain lna for multi-band rf receiver |
| 02/24/2010 | CN101657964A EDGE power ramp using logarithmic resistor attenuator |
| 02/24/2010 | CN100592624C Amplitude control circuit and voltage controlled oscillator and method for controlling signal amplitude |
| 02/24/2010 | CN100592623C Intelligent volume switching method for multimedia |
| 02/24/2010 | CN100592622C Method and device for realizing automatic gain control |
| 02/23/2010 | US7668321 Automatic power foldback for audio applications |
| 02/23/2010 | US7668319 Signal processing system, signal processing apparatus and method, recording medium, and program |
| 02/23/2010 | US7667542 Input stage for an amplifier |
| 02/23/2010 | US7667541 Amplifier circuit and wireless communication device |
| 02/18/2010 | WO2010017726A1 Processing method, system and processing device for gain control |
| 02/18/2010 | US20100040245 Multi-function headset and function selection of same |
| 02/18/2010 | US20100040240 Headphone system for computer gaming |
| 02/18/2010 | US20100039159 Control device and control method |
| 02/18/2010 | US20100039141 Envelope Detector for High Speed Applications |
| 02/17/2010 | EP1574084B1 Nxm crosspoint switch with band translation |
| 02/17/2010 | CN100590966C Acoustic device and automatic variable gaining method |
| 02/17/2010 | CN100590965C Variable gain amplifying circuit |
| 02/16/2010 | USRE41131 Portable telephone capable of increasing facility of operation |
| 02/16/2010 | US7664648 Method and apparatus to provision a network appliance |
| 02/16/2010 | US7664201 Digital automatic gain control |
| 02/16/2010 | US7664197 AM receiving circuit |
| 02/16/2010 | US7663441 Low noise amplifier |
| 02/11/2010 | WO2010017147A1 Joint time-frequency automatic gain control for wireless communication |
| 02/11/2010 | WO2010017137A2 Systems and methods for adjusting the gain of a receiver through a gain tuning network |
| 02/11/2010 | US20100034395 Adaptive ring level |
| 02/11/2010 | US20100033245 Controlling the performance of a thermionic tube |
| 02/11/2010 | US20100033244 Power amplifier system and control method and control device thereof |
| 02/11/2010 | CA2730653A1 Joint time-frequency automatic gain control for wireless communication |
| 02/10/2010 | EP2151062A1 Increasing sensitivity of radio receiver |
| 02/10/2010 | CN101645697A System and method for controlling sound volume |
| 02/04/2010 | US20100027812 Method and an apparatus for processing an audio signal |
| 02/04/2010 | US20100027811 method and an apparatus for processing an audio signal |
| 02/04/2010 | US20100027807 Method and apparatus for adjusting audio volume to prevent hearing loss or damage |
| 02/04/2010 | US20100027801 Impulse Response Processing Device, Reverberation Applying Device and Program |
| 02/03/2010 | EP2150002A2 Clipping detection device and method |
| 02/03/2010 | EP2149984A1 Automatic gain control for a wireless receiver |
| 02/03/2010 | EP2149983A1 A method and an apparatus for processing an audio signal |
| 02/03/2010 | CN101640518A System and method for automatically adjusting playing volume according to ambient sound |
| 02/03/2010 | CN100588116C Transmitter structure for communications systems |
| 02/02/2010 | US7657039 Sound quality enhancement circuit for audio signals and audio amplifier circuit using the same |
| 02/02/2010 | US7656232 Wideband variable gain amplifier with clipping function |
| 01/28/2010 | WO2010011362A1 Method and apparatus for reducing audio artifacts |
| 01/28/2010 | US20100022198 High frequency amplifier circuit and mobile communication terminal using the same |
| 01/28/2010 | US20100020988 Individual audio receiver programmer |
| 01/28/2010 | US20100019844 High efficiency precision amplifier |
| 01/28/2010 | US20100019842 Low-noise, wide offset range, programmable input offset amplifier front end and method |
| 01/27/2010 | EP2148436A2 Transmitter architectures for communications systems |
| 01/27/2010 | EP2148435A2 Transmitter architectures for communications systems |
| 01/27/2010 | EP2147568A1 A method and an apparatus for damping a sonic signal |
| 01/27/2010 | CN201393205Y Silicon power amplifier modular circuit |
| 01/27/2010 | CN100586207C Adaptive transmit power control system |
| 01/26/2010 | US7653412 Wireless communication device |
| 01/26/2010 | US7653369 Combined discrete automatic gain control (AGC) and DC estimation |
| 01/26/2010 | US7653365 Method for controlling signal power in transmitter of radio system by weighting, and transmitter therefor |
| 01/26/2010 | US7653203 Vehicle audio system surround modes |
| 01/26/2010 | US7653159 Narrowband gain control of receiver with digital post filtering |
| 01/26/2010 | US7652537 Amplifier with programmable input impedance |
| 01/21/2010 | WO2010008313A1 Method of the automatic sound level control in a specified range |
| 01/21/2010 | WO2010007925A1 Acoustic processing device |
| 01/21/2010 | US20100014866 Digital Automatic Gain Control Apparatus and Method in Burst Mode Optical Receiver |
| 01/21/2010 | US20100014691 Autonomous volume control |
| 01/21/2010 | US20100014682 Audio processing apparatus and method thereof to provide hearing protection |
| 01/21/2010 | DE112008000463T5 System und Verfahren zum Beitreten einer Unterhaltung während der Verwendung eines Ohrhörers System and method for joining a conversation while using an earphone |
| 01/20/2010 | EP2146437A1 Communication apparatus, communication control method, and communication control program |
| 01/20/2010 | EP2145195A1 System and method for power detection in a power amplifier |
| 01/20/2010 | CN101630945A Electronic device and volume control system and method thereof |
| 01/20/2010 | CN100583657C Signal processing method, particularly in a high-frequency receiver, and signal conditioning circuit |
| 01/20/2010 | CN100583655C Power limit device and digital radio transmitter using the same |
| 01/20/2010 | CN100583625C Method and device for enlarging sensitivity of amplifier chain |
| 01/19/2010 | US7650132 Low noise amplifier (LNA) gain switch circuit |
| 01/19/2010 | US7650128 Radio wave reception device, radio wave clock, and repeater |