| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 03/28/2012 | EP2434635A1 Drive device for a medical pump with a step motor |
| 03/28/2012 | CN102394586A Power amplifier voltage-regulating method and communication terminal equipment |
| 03/28/2012 | CN101626221B Digital programmable transconductance amplifier and mixed signal circuit using amplifier |
| 03/28/2012 | CN101562432B Variable gain amplifier |
| 03/27/2012 | US8145499 Generation of decorrelated signals |
| 03/27/2012 | US8144905 Volume control in a hearing aid and hearing aid with volume control |
| 03/27/2012 | US8144897 Adjusting acoustic speaker output based on an estimated degree of seal of an ear about a speaker port |
| 03/27/2012 | US8144882 Sound tuning method |
| 03/22/2012 | WO2012037050A1 Vehicle external warning sound generation system and method |
| 03/22/2012 | US20120070017 Media delivery system with improved interaction |
| 03/22/2012 | US20120070011 Converter and method for converting an audio signal |
| 03/22/2012 | US20120069242 Method and system for active noise cancellation based on remote noise measurement and supersonic transport |
| 03/22/2012 | US20120068767 Power supply arrangement for multi-stage amplifier |
| 03/22/2012 | DE10260749B4 Hochfrequenz-Leistungsdetektor mit dBm-linearer Kennlinie und dessen Verwendung zur Regelung der Leistung einer elektrischen HF-Schwingung High-frequency power detector with dBm linear characteristic and its use for controlling the power of an electrical HF oscillation |
| 03/22/2012 | DE102011083050A1 Adaptive Anpassung eines aktiven Bereichs für einen Leistungsverstärker Adaptive adjustment of an active region for a power amplifier |
| 03/21/2012 | EP2430753A1 A method and apparatus for providing information about the source of a sound via an audio device |
| 03/21/2012 | EP2067255B1 Method of control slope regulation and control slope regulation apparatus |
| 03/21/2012 | CN1983806B Signal processing apparatus and signal processing method |
| 03/21/2012 | CN102386870A Amplitude and phase control equipment and control method for power amplifier |
| 03/21/2012 | CN102386869A Analog/digital configurable variable-gain amplifier |
| 03/21/2012 | CN101859119B Display instrument with controllable amplifier gain |
| 03/21/2012 | CN101164231B Receiver having a gain-controllable input stage |
| 03/20/2012 | US8139789 Signal amplifier circuit |
| 03/20/2012 | US8139780 Using ray tracing for real time audio synthesis |
| 03/20/2012 | US8139777 System for comfort noise injection |
| 03/20/2012 | US8138831 Low noise amplifier |
| 03/15/2012 | US20120063612 Acoustic signal corrector and acoustic signal correcting method |
| 03/14/2012 | EP2429186A1 Broadcasting receiver and control method thereof |
| 03/14/2012 | EP2427882A1 Adjusting the loudness of an audio signal with perceived spectral balance preservation |
| 03/14/2012 | EP1878184B1 Power control system for a continuous time mobile transmitter |
| 03/14/2012 | DE202012002461U1 Hörgerät für altersbedingte oder ähnliche Hörschwäche Hearing aid for age-related hearing loss, or similar |
| 03/14/2012 | CN102379089A Power supply control system and method with variable post-regulation |
| 03/14/2012 | CN102377433A AD converter and ad converter circuit voltage control method |
| 03/14/2012 | CN102377398A Zero-crossing gain control system and gain control method |
| 03/14/2012 | CN102377397A Dynamic gain controller and method thereof |
| 03/14/2012 | CN102377396A Automatic gain control circuit, method and amplifier device |
| 03/14/2012 | CN102377393A Power amplifier with selectable load impedance and method of amplifying a signal with selectable load impedance |
| 03/14/2012 | CN102377391A Medium magnetic sensor circuit and signal processing method thereof |
| 03/13/2012 | US8135148 Automatic gain control for mobile microphone |
| 03/13/2012 | US8135147 Method and device for adjusting audio volume level |
| 03/13/2012 | US8134420 Communication apparatus and signal processing method thereof |
| 03/13/2012 | US8134385 Split cascode line amplifier for current-mode signal transmission |
| 03/08/2012 | US20120057726 Sound volume limiter using continuous evaluation of the incurred sound exposure dose to prevent hearing damage without degrading the user experience |
| 03/08/2012 | US20120057725 Control terminal apparatus and control method |
| 03/08/2012 | US20120057715 Spatial audio encoding and reproduction |
| 03/08/2012 | US20120057711 Noise suppression device, noise suppression method, and program |
| 03/08/2012 | US20120056677 Apparatus and method for a tunable multi-mode multi-band power amplifier module |
| 03/07/2012 | EP2319174B1 Joint time-frequency automatic gain control for wireless communication |
| 03/07/2012 | EP1665610B1 Reception control circuit and reception control method |
| 03/07/2012 | EP1048176B1 Apparatus and method of linearizing a power amplifier in a mobile radio communication system |
| 03/07/2012 | CN101484868B Auto-gain switching module for acoustic touch systems |
| 03/06/2012 | US8130980 Automatic gain control circuit for volume control and corresponding method for volume control |
| 03/06/2012 | US8130974 Vehicular active sound control system |
| 03/06/2012 | US8130056 Thermometer coded attenuator |
| 03/01/2012 | WO2012026984A1 Amplifier gain adjustment in response to reduced supply voltage |
| 03/01/2012 | WO2012025066A1 Method and device for controlling signal transmission of radio frequency power amplifier |
| 03/01/2012 | US20120051560 Dynamic adjustment of master and individual volume controls |
| 03/01/2012 | US20120051552 System, Method, and Apparatus for Adjusting an Output of a Transducer |
| 03/01/2012 | US20120049961 Amplifier gain adjustment in response to reduced supply voltage |
| 03/01/2012 | US20120049953 Multi-mode/multi-band power management system |
| 03/01/2012 | DE202011106756U1 Audiosignalmischpultsystem und zum Einstellen der Vorverstärkung eines solchen Audio mixing system and setting the pre-amplification of such |
| 02/29/2012 | EP2422448A1 Pa gain state switching based on waveform linearity |
| 02/29/2012 | CN102365821A Automatic gain control in multi-carrier wireless systems |
| 02/29/2012 | CN101084622B A power device and a method for controlling a power device |
| 02/29/2012 | CN101051823B Portable audio device providing automated control of audio volume parameters for hearing protection |
| 02/28/2012 | US8126164 Digital compensation of analog volume control gain in a digital audio amplifier |
| 02/28/2012 | US8126163 Volume and tone control in direct digital speakers |
| 02/23/2012 | WO2012003113A3 Grounding switch method and apparatus |
| 02/22/2012 | EP2421150A1 Gain control device and gain control method |
| 02/22/2012 | EP2172930B1 Audio signal processing device and audio signal processing method |
| 02/22/2012 | EP2070278B1 Output power correction module for amplifiers in transmitters |
| 02/22/2012 | CN202150837U 一种高性能数字化增益微调电路 A high-performance digital gain trim circuit |
| 02/22/2012 | CN102361435A Variable gain broadband low-noise amplifier |
| 02/22/2012 | CN101185240B 用于音频信号增益控制的设备和方法 Apparatus and method for controlling the gain of the audio signal |
| 02/22/2012 | CN101174818B 播放媒体文件的方法及装置 Method and apparatus for playing media files |
| 02/21/2012 | US8121307 In-vehicle sound control system |
| 02/21/2012 | US8120427 Circuit arrangement and method for power regulation and amplifier arrangement |
| 02/16/2012 | US20120042249 Audio signal output apparatus and method |
| 02/16/2012 | US20120039490 Controlling the Loudness of an Audio Signal in Response to Spectral Localization |
| 02/16/2012 | US20120039489 Volume control method and electronic device capable of automatic volume adjustment |
| 02/16/2012 | US20120039488 Level adjustment device |
| 02/16/2012 | US20120039487 First stage amplifier circuit |
| 02/16/2012 | US20120039486 Wireless sound amplification system with microphone based volume control |
| 02/16/2012 | US20120039485 High fidelity phonographic preamplifier featuring simultaneous flat and playback compensation curve correction outputs |
| 02/16/2012 | US20120038423 Variable gain bicmos amplifier |
| 02/16/2012 | US20120038418 dB-LINEAR VOLTAGE-TO-CURRENT CONVERTER |
| 02/16/2012 | DE102004021867B4 Verfahren zur Signalverarbeitung, insbesondere in einem Hochfrequenzempfänger und Signalaufbereitungsschaltung A method of signal processing, particularly in a high-frequency receiver and signal conditioning circuit |
| 02/15/2012 | EP2418770A1 Automatic gain control |
| 02/15/2012 | CN102355616A Method and equipment for automatic volume regulation in public environment |
| 02/15/2012 | CN102355298A Infrared receiver with digital gain control circuit |
| 02/15/2012 | CN102355216A Gilbert cell with folding structure |
| 02/15/2012 | CN102355215A Non-contact audio equipment volume controller and control method thereof |
| 02/15/2012 | CN102355214A Adjustable gain audio power amplification circuit |
| 02/15/2012 | CN102355213A Circuit arrangement and method for power regulation and amplifier arrangement |
| 02/15/2012 | CN102355196A LC oscillator |
| 02/15/2012 | CN102350970A Device for communication improvement in vehicles |
| 02/14/2012 | US8116485 Adaptive gain control system |
| 02/14/2012 | US8116484 Sound output device, control method for sound output device, and information storage medium |
| 02/14/2012 | US8116470 Impulse response processing apparatus and reverberation imparting apparatus |
| 02/14/2012 | US8116469 Headphone surround using artificial reverberation |