| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 03/19/2009 | US20090072908 Gain control circuit and optical recording and reproducing device using thereof |
| 03/19/2009 | US20090072906 High frequency power amplifier circuit and electronic component for high frequency power amplifier |
| 03/19/2009 | US20090072898 Systems and Methods of RF Power Transmission, Modulation, and Amplification, Including Blended Control Embodiments |
| 03/19/2009 | DE102008039276A1 Tonverarbeitungsvorrichtung, Vorrichtung und Verfahren zum Steuern der Verstärkung und Computerprogramm Sound processing apparatus, device and method for controlling the gain, and computer program |
| 03/19/2009 | DE102007048454B3 Electronic device, has current mirror transistors and power sources extracting currents from respective output nodes and designed such that one of currents about portion corresponding to leakage current is higher than other current |
| 03/18/2009 | EP1573906B1 Preserving linearity of an isolator-free power amplifier by dynamically adjusting gain and phase |
| 03/18/2009 | CN101388653A Gain control circuit and optical recording and reproducing device using thereof |
| 03/18/2009 | CN101388652A Feedback limiter with adaptive control of time constants |
| 03/18/2009 | CN101388216A Sound processing device, apparatus and method for controlling gain |
| 03/18/2009 | CN100471076C Device and method for calibrating power control signal of transceiver |
| 03/18/2009 | CN100471055C AGC circuit and gain control method |
| 03/18/2009 | CN100471040C Start signal output circuit |
| 03/17/2009 | US7505855 Multi-channel amplifier having programmable operational characteristics controlled with a serial interface |
| 03/17/2009 | US7505824 Audio signal processing apparatus and audio signal processing method |
| 03/17/2009 | US7505742 Battery life extending technique for mobile wireless applications using bias level control |
| 03/17/2009 | US7504885 Variable gain amplifier |
| 03/17/2009 | US7504884 Automatic gain control apparatus of cable modem, and lock-time acquisition method using the same |
| 03/17/2009 | US7504881 Power amplifier |
| 03/12/2009 | WO2009032739A2 Variable gain amplifier |
| 03/12/2009 | US20090068967 Communication semiconductor integrated circuit, communication electronic component and wireless communication system |
| 03/12/2009 | US20090067646 Atmosphere Control Device |
| 03/12/2009 | US20090067645 Electronic volume device |
| 03/12/2009 | US20090067641 User interface for mixing sounds in a media application |
| 03/12/2009 | US20090066419 Variable gain amplifier circuits |
| 03/12/2009 | US20090066414 Gain control methods and systems in an amplifier assembly |
| 03/11/2009 | EP2033330A2 Radio receiver and a method thereof |
| 03/11/2009 | CN101385263A Fiber-to-the-home (ftth) optical receiver with distributed gain control |
| 03/11/2009 | CN101383596A Variable gain amplifier circuits |
| 03/11/2009 | CN101383595A Electronic volume ajuster and audio device using thereof and abnormity detection method |
| 03/11/2009 | CN100468964C Power amplification apparatus, and mobile communication terminal apparatus |
| 03/10/2009 | US7502951 Adjustment system and method for automatically adjusting the gain of a voltage signal |
| 03/10/2009 | US7502601 Power amplifier with digital power control and associated methods |
| 03/10/2009 | US7502600 Dynamic bias for RF power amplifiers |
| 03/10/2009 | US7502569 Optical receiver preamplifier |
| 03/10/2009 | US7502480 System and method for implementing a flat audio volume control model |
| 03/10/2009 | US7501895 Channel state aided automatic gain control |
| 03/10/2009 | US7501888 Gain control methods and systems in an amplifier assembly |
| 03/05/2009 | WO2009029916A1 Systems and methods for controlling audio volume in the processor of a high definition audio codec |
| 03/05/2009 | WO2009028015A1 Mobile communication device |
| 03/05/2009 | WO2009027581A1 Signal amplifier structure for radio transmitter |
| 03/05/2009 | US20090060226 Audio circuit for display |
| 03/05/2009 | US20090060225 Protocol for remote user interface for portable media device with database navigation history |
| 03/05/2009 | US20090058531 Variable gain amplifier |
| 03/05/2009 | US20090058519 Variable Automatic Limit Control (ALC) Threshold for any Desired Compression Curve |
| 03/05/2009 | DE202008016233U1 Kombination-Entzerrer- und Kalibrier-Schaltungsanordnung für ein Audiosystem Combination Equalizer and calibration circuitry for an audio system |
| 03/05/2009 | DE102008021415A1 Selbstanpassender nachführender Analog/Digital-Wandler und HF-Sender The self aligning-tracking analog / digital converter, and RF transmitter |
| 03/04/2009 | EP2030320A2 Agc system and method for broadband tuners |
| 03/04/2009 | EP2030319A2 Digital attenuator circuits and methods for use thereof |
| 03/04/2009 | EP1702420A4 Signal generation power management control system for portable communications device and method of using same |
| 03/04/2009 | EP1607939B1 Speech signal compression device, speech signal compression method, and program |
| 03/04/2009 | CN201204677Y Tuning-conveniently microphone |
| 03/04/2009 | CN201204568Y Audio power amplification circuit |
| 03/04/2009 | CN101378423A Apparatus for automatically regulating sound volume of mobile phone talking receiving terminal |
| 03/04/2009 | CN100466484C Digitized automatic gain control system and methods for a controlled gain receiver |
| 03/04/2009 | CN100466467C Automatic volume amplitude limiter with automatic gain controlling function |
| 03/03/2009 | US7499692 Receiving circuit, and receiving apparatus and transmitting/receiving apparatus using the receiving circuit |
| 03/03/2009 | US7499556 Integrating apparatus |
| 03/03/2009 | US7499508 Method and apparatus for adjusting the gain of an if amplifier in a communication system |
| 03/03/2009 | US7498882 Signaling system with low-power automatic gain control |
| 03/03/2009 | US7498876 Amplifier having half-wave tracking power rails |
| 02/26/2009 | WO2009025705A1 Network audio processor |
| 02/26/2009 | WO2009025021A1 Transmission circuit, wireless base station device, and wireless terminal device |
| 02/26/2009 | US20090055180 System and method for optimizing speech recognition in a vehicle |
| 02/26/2009 | US20090052682 Engine sound processing apparatus |
| 02/26/2009 | US20090051825 Video/audio output device and external speaker control apparatus |
| 02/26/2009 | US20090051437 Power amplifier |
| 02/26/2009 | DE102007058726A1 Leistungs-Management-Anordnung Performance management arrangement |
| 02/26/2009 | CA2696507A1 Network audio processor |
| 02/25/2009 | EP2027651A1 Improved control of switcher regulated power amplifier modules |
| 02/25/2009 | EP2027650A1 Input drive control for switcher regulated power amplifier modules |
| 02/25/2009 | EP2027649A2 System and method for providing a transmitter for polar modulation and power amplifier linearization |
| 02/25/2009 | EP2027484A1 Sampling threshold and gain for satellite navigation receiver |
| 02/25/2009 | EP1665235A4 Adaptive computing environment |
| 02/25/2009 | CN101375495A Method and apparatus for achieving linear monotonic output power |
| 02/25/2009 | CN101373960A Output limiting circuit, class d power amplifier and audio equipment |
| 02/25/2009 | CN101373959A Apparatus and method for regulating warning tone based on circumstance |
| 02/25/2009 | CN101373958A Automatic gain control circuit and receiver using the same |
| 02/25/2009 | CN101373957A Digital gain control method and circuit |
| 02/25/2009 | CN100464498C A method and device for implementing adjustment of volume based on environmental noise detection |
| 02/24/2009 | US7496375 Transmission power control device |
| 02/24/2009 | US7496337 Method for controlling LNA gain state |
| 02/24/2009 | US7496334 Transmitter apparatus and wireless communication apparatus |
| 02/24/2009 | US7496163 AGC system, AGC method, and receiver using the AGC system |
| 02/24/2009 | US7496063 Time division multiplexing radio system for controlling transmission power |
| 02/24/2009 | US7495514 Low noise amplifier |
| 02/24/2009 | US7495513 Signaling system with low-power automatic gain control |
| 02/24/2009 | US7495205 Automatic gain control in photodetectors |
| 02/19/2009 | US20090046873 Methods and systems for determining audio loudness levels in programming |
| 02/19/2009 | DE102008032489A1 Leistungsverstärker Power amplifier |
| 02/18/2009 | EP2024033A2 Automatic external defibrillator with enhanced clarity of audible prompts |
| 02/18/2009 | EP1643639B1 Optical control type microwave phase forming device |
| 02/18/2009 | EP1579370B1 Method of automatically setting the gain of an interrogator receiver within a non-contacting identification system |
| 02/18/2009 | CN101370106A Sound volume control method for audio processing equipment and television set |
| 02/18/2009 | CN101370056A Digital audio automatic gain control method and its system |
| 02/18/2009 | CN101369805A Method for self-adjusting sound volume of sound source equipment in pervasive computation surroundings |
| 02/17/2009 | US7493179 Digital audio system and method therefor |
| 02/17/2009 | US7492914 Audio receiving system |
| 02/17/2009 | US7492223 Method and system for a highly efficient power amplifier utilizing dynamic biasing and predistortion |
| 02/12/2009 | WO2009020622A1 Methods and apparatus for calibration of automatic gain control in broadcast tuners |
| 02/12/2009 | WO2009019541A1 Wireless communication unit, integrated circuit and method of power control therein |