| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 01/10/2012 | US8094827 Sound reproducing apparatus and sound reproducing system |
| 01/10/2012 | US8094033 Apparatus to monitor process-based parameters of an integrated circuit (IC) substrate |
| 01/10/2012 | US8093948 Power amplifier |
| 01/10/2012 | US8093947 Power amplifier |
| 01/10/2012 | US8093946 Joint optimisation of supply and bias modulation |
| 01/10/2012 | US8093945 Joint optimisation of supply and bias modulation |
| 01/10/2012 | CA2511145C Methods and apparatus for reducing signal interference in a wireless receiver based on signal-to-interference ratio |
| 01/05/2012 | WO2012003113A2 Grounding switch method and apparatus |
| 01/05/2012 | US20120002825 Limiting peak audio power in mobile devices |
| 01/05/2012 | US20120001693 Power amplifier amplitude modulator system and method |
| 01/05/2012 | US20120001688 Transmission power control method and transmission power control apparatus |
| 01/05/2012 | US20120001687 Receiving apparatus and auto gain control method |
| 01/04/2012 | EP2403303A1 Method, device and system for controlling a carrier frequency power amplifier of a base station |
| 01/04/2012 | EP2401872A2 Speaker distortion reduction system and method |
| 01/04/2012 | EP2140571B9 Apparatus and method for computing maximum power reduction for a umts signal |
| 01/04/2012 | CN101741320B Wide-area high-resolution programmable gain amplifier |
| 01/04/2012 | CN101490951B Radio frequency power amplifier circuit and method |
| 01/04/2012 | CN101325406B Method and apparatus for automatically adjusting sound volume |
| 01/03/2012 | US8090122 Audio mixing using magnitude equalization |
| 01/03/2012 | US8090121 Audio adapter having volume adjusting function |
| 01/03/2012 | US8090120 Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal |
| 01/03/2012 | US8090113 System and method for modulating audio effects of speakers in a sound system |
| 01/03/2012 | US8089323 Green technology: green circuit and device designs of green chip |
| 01/03/2012 | US8089313 Power amplifier |
| 01/03/2012 | CA2401891C Transmitter architectures for communications systems |
| 12/29/2011 | WO2011163642A2 Method and device for optimizing audio quality |
| 12/29/2011 | WO2011161759A1 Semiconductor device |
| 12/29/2011 | US20110317857 Self powered audio compressor circuit |
| 12/29/2011 | US20110317856 Headphone |
| 12/29/2011 | US20110317855 Improvements in or relating to user interfaces and associated apparatus and methods |
| 12/29/2011 | US20110317854 Speaker voume control with inidividual input and output impedance converters |
| 12/29/2011 | US20110317841 Method and device for optimizing audio quality |
| 12/29/2011 | US20110316632 Optical communication device |
| 12/29/2011 | US20110316623 Method for amplifying a signal by a power amplifier, power amplifier system, device, computer program product, and digital storage medium thereof |
| 12/29/2011 | US20110316622 Electronic circuit |
| 12/28/2011 | EP2130338B1 Apparatus and method accounting for effects of discontinuities at the output of automatic gain control in a multi carrier system |
| 12/28/2011 | CN1790927B 实施自动增益控制的无线装置及增益控制方法 Embodiment of the wireless device and the gain control method for automatic gain control |
| 12/28/2011 | CN102301744A 基于装置操作条件的音频译码选择 Audio decoding selection means based on the operating conditions |
| 12/28/2011 | CN102301589A 调平多个音频信号的方法 Leveling method for a plurality of audio signals |
| 12/28/2011 | CN102299752A 预校准射频功率检测器 Pre-calibrated RF power detector |
| 12/28/2011 | CN102299694A 具有录音效果监听功能并调节录音增益的系统及方法 Has the effect of recording monitor function and regulation system and method for recording a gain of |
| 12/28/2011 | CN102299693A 音讯调整系统及方法 Audio adjustment system and method |
| 12/28/2011 | CN101740037B 一种基于滑动增益的语音自动增益和动态范围控制方法 Based sliding gain automatic gain and dynamic range of voice control method |
| 12/28/2011 | CN101330278B 具有sag补偿的增益可编程视频缓冲放大器电路 Programmable gain video buffer amplifier circuit has sag compensation |
| 12/27/2011 | US8086335 Playback apparatus, playback method, and recording medium |
| 12/27/2011 | US8085947 Multi-channel echo compensation system |
| 12/27/2011 | US8085943 Noise extractor system and method |
| 12/27/2011 | US8085089 Method and system for polar modulation with discontinuous phase for RF transmitters with integrated amplitude shaping |
| 12/27/2011 | US8084852 Hybrid integrated circuit device, and method for fabricating the same, and electronic device |
| 12/27/2011 | US8084679 Electronic signal processor |
| 12/22/2011 | US20110310308 Video/audio output device and external speaker control apparatus |
| 12/21/2011 | EP2398256A2 Television set and speaker system |
| 12/21/2011 | CN102291094A 采用低噪声和噪声抑制组合模拟和数字信号处理的音频放大器的可编程噪声门限 Low noise and noise suppression combination of analog and digital signal processing of the audio amplifier programmable noise threshold |
| 12/21/2011 | CN102291093A Rf功率放大装置及其工作方法 Apparatus and its working methods Rf power amplifier |
| 12/21/2011 | CN101478296B 一种多声道系统中的增益控制方法及装置 A multi-channel system gain control method and apparatus |
| 12/20/2011 | US8081777 Volume-based adaptive biasing |
| 12/20/2011 | US8081765 Volume adjusting system and method |
| 12/15/2011 | US20110305346 Adaptive Audio Output |
| 12/15/2011 | US20110304390 Compensation device applied to power amplifier, method for determining pre-distortion of power amplifier, and method for compensating linearity of power amplifier thereof |
| 12/14/2011 | EP2395659A2 Adaptive audio output |
| 12/14/2011 | EP2395658A2 Audio signal adjusting system and method |
| 12/14/2011 | EP2394360A2 Adjusting dynamic range for audio reproduction |
| 12/14/2011 | CN202077158U 一种自动降噪与agc音量控制楼宇对讲系统 Agc an automatic volume control and noise reduction building intercom system |
| 12/14/2011 | CN1809957B 功率放大装置 Power amplifying means |
| 12/14/2011 | CN1493112B 发射装置 Transmitting device |
| 12/14/2011 | CN102282774A 折叠顺序自适应均衡器 Fold sequence adaptive equalizer |
| 12/14/2011 | CN102281039A 视音频播放列表音量自动调节方法 Video and audio volume control method playlist |
| 12/14/2011 | CN102281038A 信号处理装置 Signal processing means |
| 12/14/2011 | CN102281037A 采用闭环功率输出级的音频放大器电路及其控制方法 Closed loop power output stage of an audio amplifier circuit and control method |
| 12/14/2011 | CN101594671B 无线发送和接收设备及方法 The radio transmitting and receiving apparatus and method |
| 12/14/2011 | CN101459414B 影音播放装置及音量控制方法 Volume control audio and video playback device and method |
| 12/14/2011 | CN101340196B 多通道数字化检波中频放大器 Multi-channel digital IF amplifier detector |
| 12/13/2011 | US8076995 Integrated digitally controlled linear-in-decibels attenuator |
| 12/13/2011 | US8076974 Radio frequency (RF) power amplifier and RF power amplifier apparatus |
| 12/08/2011 | US20110300899 Cmos rf switch device and method for biasing the same |
| 12/08/2011 | US20110300898 High linearity cmos rf switch passing large signal and quiescent power amplifier current |
| 12/08/2011 | US20110299705 Audio signal adjusting system and method |
| 12/08/2011 | US20110299694 Audio extension system |
| 12/08/2011 | US20110298543 Systems and Methods for Hybrid Algorithm Gain Adaptation |
| 12/08/2011 | US20110298542 Amplifier with Automatic Gain Profile Control and Calibration |
| 12/08/2011 | US20110298540 System and method for controlling a power amplifier using a programmable ramp circuit |
| 12/08/2011 | US20110298539 Rf power amplifier circuit with mismatch tolerance |
| 12/08/2011 | US20110298538 Apparatus and method for current sensing using a wire bond |
| 12/08/2011 | US20110298537 Voltage distribution for controlling cmos rf switch |
| 12/07/2011 | EP2392150A1 Audio coding selection based on device operating condition |
| 12/07/2011 | EP2392110A1 Automatic gain control (agc) for ofdm-based transmission in a wireless communication network |
| 12/07/2011 | EP2392073A1 Automatic gain control based on bandwidth and delay spread |
| 12/07/2011 | EP2392072A1 Method of leveling a plurality of audio signals |
| 12/07/2011 | EP1263143B1 Digital communication system |
| 12/07/2011 | CN102273223A 动态音量控制和多空间处理保护 Dynamic volume control and multi-spatial processing protection |
| 12/07/2011 | CN102273164A 无线通信网络中对基于ofdm的传输的自动增益控制(agc) A wireless communication network for automatic gain control (agc) based on the transmission of the ofdm |
| 12/07/2011 | CN102270997A 接收装置 Receiver |
| 12/07/2011 | CN102270972A 增益可变放大器 Variable gain amplifier |
| 12/07/2011 | CN102270971A 一种低功耗高集成度自动增益控制放大器 A low-power highly integrated AGC amplifier |
| 12/07/2011 | CN101736315B 射频发生器的离线检测装置 Offline detection device RF generator |
| 12/07/2011 | CN101552595B 电子产品的音量调节方法及其装置 Electronic volume control method and device |
| 12/07/2011 | CN101166017B 用于声音产生设备的自动杂音补偿方法及装置 Automatic noise compensation method and apparatus for generating sound equipment |
| 12/07/2011 | CN101160616B 用于产生、处置或解码数字比特流的处理方法 Used to generate, handle or dispose of decoding digital bit stream |
| 12/06/2011 | US8073409 System and method for controlling transmitter output levels in a wireless communications device |
| 12/06/2011 | US8073169 Controlling fading and surround signal level |