| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 02/14/2012 | US8116468 Stereophonic sound reproduction device |
| 02/14/2012 | US8116464 Method for volume adaptation, mobile electronic device and computer program product using the method thereof |
| 02/14/2012 | US8115552 Amplifier circuit with step gain |
| 02/14/2012 | US8115551 Amplifying device and its control method |
| 02/14/2012 | US8115547 Reconfigurable power amplifier and use of such amplifier for making a multi-standard amplification stage for mobile phone communications |
| 02/14/2012 | US8115295 Semiconductor device |
| 02/09/2012 | US20120034894 Automatic gain control system with dual-rssi interference detection for optimization of sensitivity and adjacent channel rejection performance of rf receivers |
| 02/09/2012 | US20120034893 Envelope power supply calibration of a multi-mode radio frequency power amplifier |
| 02/09/2012 | US20120032743 Low-noise amplifier with gain enhancement |
| 02/09/2012 | US20120032742 Cmos millimeter-wave variable-gain low-noise amplifier |
| 02/08/2012 | EP2416499A1 A multimode SAW-less receiver with a translational loop for input matching |
| 02/08/2012 | EP2415177A1 Power supply control system and method with variable post-regulation |
| 02/08/2012 | EP2415169A1 Automatic gain control in multi-carrier wireless systems |
| 02/08/2012 | DE202011107988U1 Automatische Verstärkungsregelung Automatic gain control |
| 02/08/2012 | CN202143039U 具有折叠结构的吉尔伯特单元 Gilbert cell with a folded structure |
| 02/08/2012 | CN202143038U Power amplifier static automatic adjusting circuit |
| 02/08/2012 | CN202143037U 一种无调节冲击噪音的分流式步进电位器 A non-impact noise shunt regulator stepping potentiometer |
| 02/08/2012 | CN102347780A Radio frequency receiving front-end circuit with adjustable gain |
| 02/08/2012 | CN102347740A Radio apparatus carrying out automatic gain control |
| 02/08/2012 | CN102347734A CMOS power amplifier |
| 02/08/2012 | CN101604959B 自动增益车载有源天线放大器 Automatic Gain Car Active Antenna Amplifier |
| 02/08/2012 | CN101465625B 自动调整增益的装置与方法 Apparatus and method for automatically adjusting the gain |
| 02/08/2012 | CN101330277B 功率放大器开机及关机时喇叭爆音的消除电路与方法 Eliminate sonic boom speaker amplifier startup and shutdown circuit and method |
| 02/08/2012 | CN101183861B 带通滤波器电路、带阻滤波器电路和红外线信号处理电路 Band-pass filter circuit, a band stop filter circuit, and an infrared signal processing circuit |
| 02/07/2012 | US8112053 Shared LNA and PA gain control in a wireless device |
| 02/07/2012 | US8111842 Filter adaptation based on volume setting for certification enhancement in a handheld wireless communications device |
| 02/07/2012 | US8111841 Audio input/output device and method for switching input/output functions |
| 02/07/2012 | US8111104 Biasing methods and devices for power amplifiers |
| 02/02/2012 | WO2012015224A2 Variable resister having resistance varying geometrically ratio and control method thereof |
| 02/02/2012 | WO2012014343A1 Semiconductor integrated circuit and tuner system provided with same |
| 02/02/2012 | US20120028613 Messaging system |
| 02/02/2012 | US20120027227 Personalized adjustment of an audio device |
| 02/02/2012 | US20120027226 System and method for providing focused directional sound in an audio system |
| 02/02/2012 | US20120027225 Bell sound outputting apparatus and method thereof |
| 02/02/2012 | US20120027216 Controlling an adaptation of a behavior of an audio device to a current acoustic environmental condition |
| 02/02/2012 | US20120025908 Automatic gain control |
| 02/02/2012 | US20120025907 Power amplifier |
| 02/01/2012 | EP2413500A1 Reception apparatus, reception method, program, and reception system |
| 02/01/2012 | CN102342020A Adjusting dynamic range for audio reproduction |
| 02/01/2012 | CN102340286A Method for realizing ALC (Adaptive Logic Circuit) control |
| 02/01/2012 | CN102340282A Amplifier with wide gain range |
| 02/01/2012 | CN101223689B 可变增益放大器以及使用其的交流电源装置 A variable gain amplifier and the use of its AC power supply unit |
| 01/31/2012 | US8107907 Information processing apparatus, method, and program |
| 01/31/2012 | US8107901 Feedback loop with adjustable bandwidth |
| 01/31/2012 | US8107643 Apparatus and method of automatically compensating an audio volume in response to channel change |
| 01/31/2012 | US8107632 Digital signal processing apparatus, method thereof and headphone apparatus |
| 01/31/2012 | US8106709 Pre and post filter automatic gain control with bounded pre-filter gain control |
| 01/26/2012 | WO2012009985A1 Mobile terminal, volume adjustment method and device thereof |
| 01/26/2012 | US20120020487 Audio device volume manager using measured distance between first and second audio devices to control volume generation by the second audio device |
| 01/26/2012 | US20120020486 Audio device volume manager using measured volume perceived at a first audio device to control volume generation by a second audio device |
| 01/26/2012 | US20120020485 Systems, methods, apparatus, and computer-readable media for multi-microphone location-selective processing |
| 01/26/2012 | US20120019319 Amplitude Error De-Glitching Circuit and Method of Operating |
| 01/25/2012 | EP1547433B1 Audio amplifier with local interface system |
| 01/25/2012 | EP1384314B1 Frequency conversion by undersampling |
| 01/25/2012 | CN1968011B Transistor drive circuit, constant voltage circuit, and method thereof using a plurality of error amplifying circuits |
| 01/25/2012 | CN102332881A Headset volume control circuit of key general mobile phone |
| 01/25/2012 | CN102332880A Amplifier circuit capable of changing working modes |
| 01/25/2012 | CN102332879A Class ab output stages and amplifiers including class ab output stages |
| 01/25/2012 | CN102332874A Temperature compensation device for power amplifier and method for controlling power stability |
| 01/25/2012 | CN101394519B 增益控制方法以及接收器 The gain control method and a receiver |
| 01/25/2012 | CN101171745B Receiver having a gain-controllable input amplifier |
| 01/25/2012 | CN101079600B Regulator for high frequency amplifier |
| 01/24/2012 | USRE43132 Volume control for audio signals |
| 01/24/2012 | US8103234 Automatic gain control using signal and interference power to obtain extended blocking performance |
| 01/24/2012 | US8103010 Acoustic signal processing apparatus and acoustic signal processing method |
| 01/24/2012 | US8103008 Loudness-based compensation for background noise |
| 01/24/2012 | US8103007 System and method of detecting speech intelligibility of audio announcement systems in noisy and reverberant spaces |
| 01/24/2012 | US8102213 Multi-mode low noise amplifier with transformer source degeneration |
| 01/24/2012 | US8102212 Signaling system with low-power automatic gain control |
| 01/24/2012 | US8102208 Signal amplifier |
| 01/19/2012 | WO2012009586A2 Squelch detection circuit and method |
| 01/19/2012 | WO2011150267A3 Signal-based gain control |
| 01/19/2012 | US20120014540 Method and apparatus for audio normalization |
| 01/19/2012 | US20120014539 Signal processing apparatus, semiconductor chip, signal processing system, and method of processing signal |
| 01/19/2012 | US20120014538 Audio equipment and a control method thereof |
| 01/19/2012 | US20120014537 System and Method for Automatic Microphone Volume Setting |
| 01/19/2012 | US20120013400 Current Control Circuit, Class AB Operational Amplifier System and Current Control Method |
| 01/19/2012 | US20120013399 Automatic gain control circuit and automatic gain control method |
| 01/18/2012 | EP2408127A1 Radio-frequency amplifier system |
| 01/18/2012 | EP1999992B1 Adaptive speaker equalization |
| 01/18/2012 | EP1931095B1 Light receiver and its identification threshold value generation method |
| 01/17/2012 | US8098835 Method and apparatus to enhance low frequency component of audio signal by calculating fundamental frequency of audio signal |
| 01/17/2012 | US8098833 System and method for dynamic modification of speech intelligibility scoring |
| 01/17/2012 | US8098761 Method and apparatus for optimizing transmitter power efficiency |
| 01/17/2012 | US8098742 Gain control method and apparatus |
| 01/17/2012 | US8098181 Attenuator circuit |
| 01/17/2012 | US8098094 Instrumentation input systems |
| 01/17/2012 | US8098093 Efficient envelope tracking power supply for radio frequency or other power amplifiers |
| 01/12/2012 | WO2012004840A1 Amplifier with pass-through |
| 01/12/2012 | US20120008802 Voice detection for automatic volume controls and voice sensors |
| 01/12/2012 | US20120008801 "POSSE" -- an acronym for "Personal OnStage Sound Enhancer" |
| 01/12/2012 | US20120008800 Telephone enhancements |
| 01/12/2012 | US20120007680 Variable gain amplifier |
| 01/11/2012 | EP2405695A1 Method and arrangement in a cellular communications system |
| 01/11/2012 | EP1728084B1 Measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit |
| 01/11/2012 | CN102315826A Squelch control method of automatic gain power amplifier chain and circuit |
| 01/10/2012 | US8095094 Communication semiconductor integrated circuit, communication electronic component and wireless communication system |
| 01/10/2012 | US8094839 Microelectromechanical system (MEMS) device with senstivity trimming circuit and trimming process |
| 01/10/2012 | US8094838 Voice command of audio emitting device |
| 01/10/2012 | US8094837 Processing an audio input signal to produce a processed audio output signal |