| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 01/19/2010 | US7650122 Power control circuitry for a mobile terminal application |
| 01/19/2010 | US7650002 Digital compressor for multi-channel audio system |
| 01/19/2010 | US7650001 Dummy sound generating apparatus and dummy sound generating method and computer product |
| 01/19/2010 | US7649418 Variable-gain amplifier |
| 01/19/2010 | US7649413 High-frequency power amplifier improved in size and cost |
| 01/14/2010 | WO2010005823A1 Providing a plurality of audio files with consistent loudness levels but different audio characteristics |
| 01/14/2010 | WO2010005034A1 Acoustic processing device |
| 01/14/2010 | WO2010004456A1 Digital-to-analogue converter |
| 01/14/2010 | WO2009143385A3 A method and apparatus for adjusting audio for a user environment |
| 01/14/2010 | US20100008521 Volume and tone control in direct digital speakers |
| 01/14/2010 | US20100008513 Method and system for automatically generating world environment reverberation from a game geometry |
| 01/14/2010 | US20100008512 Paging System |
| 01/14/2010 | US20100007518 Input apparatus using motions and user manipulations and input method applied to such input apparatus |
| 01/14/2010 | US20100007414 Gain Control for Linear Radio Freqency Power Amplifiers |
| 01/13/2010 | EP2144367A2 Automatic gain control for a wireless receiver |
| 01/13/2010 | EP2143204A1 Automatic volume and dynamic range adjustment for mobile audio devices |
| 01/13/2010 | EP1599992B1 Audibility enhancement |
| 01/13/2010 | CN101626221A Digital programmable transconductance amplifier and mixed signal circuit using amplifier |
| 01/13/2010 | CN100581065C Regulating method for signal receiver and relevant receiver |
| 01/13/2010 | CN100581052C Automatic gain control system with self-adaptive climb and decay time |
| 01/13/2010 | CN100581051C Programmable gain amplifier |
| 01/12/2010 | US7647059 Communication system |
| 01/12/2010 | US7645978 Image sensing apparatus and image sensing method using image sensor having two or more different photoelectric conversion characteristics |
| 01/07/2010 | WO2010002889A1 System and method of controlling power consumption in response to volume control |
| 01/07/2010 | WO2010002405A1 Voice detection for automatic volume controls and voice sensors |
| 01/07/2010 | WO2010001721A1 Signal output device, signal output control method, program, and recording medium |
| 01/07/2010 | US20100001393 Semiconductor device |
| 01/06/2010 | EP2141804A1 Receiving device and receiving method |
| 01/06/2010 | EP2141695A1 Speech sound enhancement device |
| 01/06/2010 | EP2140571A2 Apparatus and method for computing maximum power reduction for a umts signal |
| 01/06/2010 | CN201378865Y Volume control device |
| 01/06/2010 | CN101621283A Amplitude detection and automatic gain control (AGC) circuit |
| 01/06/2010 | CN100579298C Mixer apparatus and method for changing parameter settings in the mixer apparatus |
| 01/06/2010 | CN100579103C Automatic power control device and method for QAM transmitter unit of wireless communication device |
| 01/06/2010 | CN100578927C Method and apparatus for regulating transmitted power in multi-rate wireless communication systems |
| 01/06/2010 | CN100578926C Adjustable gain amplifier with gain adjusting device |
| 01/06/2010 | CN100578921C Bias controller, current modulator and method for controlling bias voltage signal |
| 01/06/2010 | CN100578917C Gain amplifier circuit that minimizes the miller effect |
| 01/06/2010 | CN100578596C Drive circuit, operation state detection circuit, and display device |
| 01/05/2010 | US7643640 System and method for designing sound systems |
| 01/05/2010 | US7643058 Digital TV receiving smart antenna control system and controlling method of the same |
| 01/05/2010 | US7642848 Variable gain amplifying apparatus and wireless communication apparatus |
| 12/31/2009 | US20090323987 Method and apparatus for synchronizing audio levels of a device and an audio accessory |
| 12/31/2009 | US20090323986 Method and Apparatus for Audio Normalization |
| 12/31/2009 | US20090323985 System and method of controlling power consumption in response to volume control |
| 12/31/2009 | US20090323567 Wide Dynamic Range Power Detection Scheme |
| 12/31/2009 | US20090322423 Method and system for polar modulating qam signals with discontinuous phase |
| 12/31/2009 | US20090322422 Signal amplification |
| 12/31/2009 | DE10219362B4 Automatische Verstärkungssteuerung für einen Direktumsetzer und Verfahren zum Steuern der Verstärkung eines Basisbandsignals in einem derartigen Empfänger Automatic gain control for a direct converter and method for controlling the gain of a baseband signal in such a receiver |
| 12/31/2009 | DE102008030840A1 Adaptive sound volume control arrangement for e.g. discotheque, has controller for receiving measurement value and adjusting sound volume of acoustic output via loudspeaker based on measurement value |
| 12/30/2009 | WO2008144154A3 Error driven rf power amplifier control with increased efficiency |
| 12/30/2009 | CN201374809Y Loudspeaker protective device and mobile communication terminal |
| 12/30/2009 | CN201374681Y AGC selection and adjustment circuit and satellite receiver with circuit |
| 12/30/2009 | CN100576728C RF power sensing circuit |
| 12/29/2009 | US7639823 Audio mixing using magnitude equalization |
| 12/29/2009 | US7639080 Radio frequency amplifier circuit and mobile communication terminal using the same |
| 12/29/2009 | US7639076 Gain controlled amplifier and cascoded gain controlled amplifier based on the same |
| 12/29/2009 | US7639074 Linear programmable switch-capacitance gain amplifier |
| 12/24/2009 | US20090318081 Bluetooth control for voip telephony using headset profile |
| 12/24/2009 | US20090316934 Volume control feature for use with a multimedia device |
| 12/24/2009 | US20090316933 Miniature Speaker Device and Television Set |
| 12/24/2009 | US20090316932 Volume Adjustment for Multiple Voice Over Internet Protocal Streams |
| 12/24/2009 | US20090316931 Audio device and volume adjusting circuit for the audio device |
| 12/24/2009 | US20090315708 Method and system for limiting audio output in audio headsets |
| 12/24/2009 | DE102009015936A1 Gleichtaktsteuerschaltkreis für mehrstufige Operationsverstärker Common mode control circuit for multi-stage operational amplifier |
| 12/23/2009 | WO2009153892A1 Amplifier for controlling gain and optical module |
| 12/23/2009 | WO2009153282A1 Method and device for data processing, communication system comprising such device, transmitter and receiver |
| 12/23/2009 | EP2136522A1 Method and device for data processing, communication system comprising such device, transmitter and receiver |
| 12/23/2009 | EP2136470A2 Automatic gain control circuit |
| 12/23/2009 | EP2136362A1 Audio signal processing device and audio signal processing method |
| 12/23/2009 | CN201369813Y Audio power amplification circuit with constant output power selectability |
| 12/23/2009 | CN201369771Y Controllable gain filter circuit for scientific grade CCD |
| 12/23/2009 | CN101611545A Digital gain control |
| 12/23/2009 | CN101610573A Wireless transmitting and receiving device and method |
| 12/23/2009 | CN100574295C Receiving system containing digital automatic fine gaining controller and receiving method thereof |
| 12/23/2009 | CN100574293C Wireless transmitting and receiving device and method |
| 12/23/2009 | CN100573679C Front photoelectric detector, optical pick-up, and optical recording and/or playing equipment |
| 12/23/2009 | CA2727980A1 Amplifier and optical module performing gain control |
| 12/22/2009 | US7636444 Automatic adjustments of audio alert characteristics of an alert device using ambient noise levels |
| 12/22/2009 | US7636286 Front photo detector having no gain selection switch, optical pick-up including the front photo detector, and optical recording and/or playing apparatus including the front photo detector |
| 12/17/2009 | WO2009152394A1 Methods and systems of agc and dc calibration for ofdm/ofdma systems |
| 12/17/2009 | WO2009150611A1 Digital detector and digital automatic gain control system for radio receivers |
| 12/17/2009 | WO2009150056A1 Amplifier arrangement and method for signal amplification |
| 12/17/2009 | WO2009149584A1 Method and apparatus for controlling audio input amplitude |
| 12/17/2009 | US20090312071 Devices for controlling amplication of a signal emitted by a mobile |
| 12/17/2009 | US20090309661 Systems and Methods for Switching Mode Power Amplifier Control |
| 12/16/2009 | CN101604981A Wireless communication device capable of reducing electric power consumption and relative wireless signal transmitting device |
| 12/16/2009 | CN101604962A Variable gain RF amplifier |
| 12/16/2009 | CN101604960A Systems and methods for switching mode power amplifier control |
| 12/16/2009 | CN101604959A Automatic gain vehicle active antenna amplifier |
| 12/16/2009 | CN100571020C Crystal oscillating circuit and gain control method thereof |
| 12/15/2009 | US7634244 Variable-gain low noise amplifier for digital terrestrial applications |
| 12/15/2009 | US7634095 Dynamic tuning of hands-free algorithm for noise and driving conditions |
| 12/10/2009 | WO2009149423A1 Combined dual feed-forward and feedback analog and digital automatic gain control for broadband communication |
| 12/10/2009 | WO2009148372A1 Method and arrangement in a cellular communications system |
| 12/10/2009 | US20090305655 Receiver having a gain-controllable input amplifier |
| 12/10/2009 | US20090304205 Techniques for personalizing audio levels |
| 12/10/2009 | US20090304196 Wireless vocal microphone with built-in auto-chromatic pitch correction |
| 12/10/2009 | US20090304191 Automatic gain control system applied to an audio signal as a function of ambient noise |
| 12/10/2009 | US20090304112 Scheme to alleviate signal degradation caused by digital gain control loops |