H03G 3 - Gain control in amplifiers or frequency changers

Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
11/2009
11/05/2009	US20090274322 Volume Control Apparatus and Method
11/05/2009	US20090274321 Audio amplifier and technique for power efficiency thereof
11/05/2009	US20090274310 System and method for dynamic sound delivery
11/05/2009	US20090273401 Method and System for Multiple Tuner Application Using a Low Noise Broadband Distribution Amplifier
11/04/2009	EP2113143A2 Reducing automatic gain control process in time division duplex communication mode
11/04/2009	EP1364456B1 Amplification systems and methods using fixed and modulated power supply voltages and buck-boost control
11/03/2009	US7613441 Radio wave reception device and radio wave clock
11/03/2009	US7613312 Audio processing apparatus for implementing level corrections of audio data
11/03/2009	US7613305 Method for treating an electric sound signal
11/03/2009	US7612611 Amplifier circuit
11/03/2009	CA2492042C A control system for controlling an output signal power level of a wireless transmitter
10/2009
10/29/2009	WO2009130371A1 Hybrid switched mode/linear mode power amplifier control
10/28/2009	CN101569093A Dynamically learning a user's response via user-preferred audio settings in response to different noise environments
10/28/2009	CN101569092A System for processing audio data
10/28/2009	CN101567672A Method and system for acquiring gain
10/28/2009	CN101567671A Device and method for playing sound
10/28/2009	CN100556203C Audio amplifier local interface system
10/28/2009	CN100555913C Automatic bit rate control circuit
10/27/2009	US7609840 System and method for hierarchical audio conflict control
10/27/2009	US7608922 Semiconductor device including amplifier and frequency converter
10/22/2009	WO2009128745A1 Bipolar current mirror
10/22/2009	WO2009128590A1 Automatic gain controller, transceiver and automatic gain-control method thereof
10/22/2009	US20090264145 Dynamic bias for rf power amplifiers
10/22/2009	US20090262955 Electronic device and volume control method of electronic device
10/22/2009	US20090262954 Audio signal adjusting method and device utilizing the same
10/22/2009	US20090262949 Multi-channel acoustic signal processing device
10/22/2009	US20090262256 Video/sound output device and external speaker control device
10/22/2009	US20090261906 Amplifier for improving electrostatic discharge characteristic
10/22/2009	US20090261905 Open gain adjustment circuit for operational amplifier
10/22/2009	US20090261899 Amplifier with Automatic Gain Profile Control and Calibration
10/21/2009	EP2109778A1 Amplification circuit having an integrated test circuit
10/21/2009	CN201332387Y 音量调整装置 Volume adjustment device
10/21/2009	CN101563843A Optical receiver
10/21/2009	CN101562717A Mobile TV automatic gain control device and dynamic step length adjusting method thereof
10/21/2009	CN101562432A Variable gain amplifier
10/21/2009	CN100553126C Controller of radio-frequency power generator for reducing sensitivity to cable length
10/21/2009	CN100553125C Transmission output control apparatus, its method and transmitter
10/21/2009	CN100553123C Differential amplifier and calculation amplifier
10/21/2009	CN100553118C Integrated power amplifier circuit and method
10/20/2009	US7606626 Speaking thermometer
10/20/2009	US7606378 Radio distortion processing
10/20/2009	US7606376 Automotive audio controller with vibration sensor
10/20/2009	US7606375 Method and system for automatically generating world environmental reverberation from game geometry
10/20/2009	US7606374 Engine sound synthesizer, motor vehicle and game machine employing the engine sound synthesizer, engine sound synthesizing method, and recording medium containing computer program for engine sound synthesis
10/20/2009	US7606373 Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics in three dimensions
10/20/2009	US7605659 Gain adjustment for programmable gain amplifiers
10/20/2009	US7605652 Loop gain equalizer for RF power amplifier
10/20/2009	US7605651 Multimode amplifier for operation in linear and saturated modes
10/15/2009	WO2009126392A1 Amplifier design with biasing and power control aspects
10/15/2009	WO2009125840A1 Audio signal processing device and audio signal processing method
10/15/2009	WO2009125322A1 Radio receiver gain control
10/15/2009	WO2009124936A1 Device power detector
10/15/2009	WO2009124389A1 System and method for programmable pre-amplification of a signal
10/15/2009	US20090258682 Methods, Devices, and Computer Program Products for Providing Ambient Noise Sensitive Alerting
10/15/2009	US20090257605 Master volume controlling device
10/15/2009	US20090257604 Deformable Controller for Electronic Device
10/15/2009	US20090256635 Linear-in-db variable gain amplifier
10/15/2009	US20090256634 Output distortion cancellation circuit
10/15/2009	DE19950714B4 Schaltung und Verfahren zum Kombinieren einer Vorspannung mit Signalen mit wahlweise variabler Signalverstärkung Circuit and method for combining a bias voltage signals with optional variable signal amplification
10/15/2009	DE102005061002B4 Verfahren zur Steuerung einer Hörvorrichtung in Abhängigkeit einer Abschaltzeitdauer und entsprechende Hörvorrichtung Method for controlling a hearing apparatus as a function of a shut-off time and corresponding hearing device
10/14/2009	EP2108220A2 System and method for muting tv speakers when headphones in use
10/14/2009	CN101557206A Transmitter architecture for communications system
10/14/2009	CN101557205A Mixed-mode AGC loop
10/14/2009	CN101557204A Automatic gain control circuit of multistage high dynamic range used in ultrasonic distance measurement
10/14/2009	CN100550877C Method and apparatus for adjusting the phase of a received signal
10/14/2009	CN100550612C Radio transmitter with accurate power control
10/14/2009	CN100550611C Automatic gain control circuit
10/14/2009	CN100550610C Method for protecting hearing by adjusting volume based on medium player
10/13/2009	US7603098 Programmable IF frequency filter for enabling a compromise between DC offset rejection and image rejection
10/13/2009	US7603085 Bandpass filter with integrated variable gain function
10/13/2009	US7602924 Reproduction apparatus with audio directionality indication of the location of screen information
10/13/2009	US7602865 Apparatus and method for enhancing a reception rate of a receiver
10/13/2009	US7602448 Apparatus and method for providing an AGC function using multiple feedback sources
10/13/2009	US7602243 Amplifier
10/13/2009	US7601940 Gain control system for visible light communication systems
10/08/2009	WO2009123823A1 Transmitter chain timing and transmit power control
10/08/2009	WO2009122239A1 Volume level modification
10/08/2009	US20090252504 Optical Receiver
10/08/2009	US20090252350 Filter adaptation based on volume setting for certification enhancement in a handheld wireless communications device
10/08/2009	US20090252349 Method of limiting the maximum permitted sound volume in an earphone, and an earphone for carrying out the method
10/08/2009	US20090252348 Antenna implementations in interconnecting cables
10/08/2009	US20090252347 Method and Apparatus For Automatic Gain Control
10/08/2009	US20090251218 Variable Gain Amplifier
10/08/2009	DE102009014551A1 Verstärker mit variabler Verstärkung Variable gain amplifier
10/07/2009	EP2107558A1 Communication apparatus
10/07/2009	EP1653607B1 Circuit for varying gain of preamplifier
10/07/2009	CN101552595A Electronic product volume regulating method and device thereof
10/07/2009	CN101552592A CMOS current automatic control crystal oscillator
10/07/2009	CN100547916C Log-linear current generator and related variable gain amplifier
10/07/2009	CN100547915C Transmission power controller of a mobile communication terminal and method
10/06/2009	US7599504 Apparatus and method for adjusting sound volume for televisions and other audio systems
10/06/2009	US7599503 Audio output level setting method and device
10/06/2009	US7599501 Single bit per-voice dry/wet reverb control
10/06/2009	US7598987 Flicker detection gain control circuit, digital imaging system, and method
10/06/2009	US7598814 Method and apparatus for an LNA with high linearity and improved gain control
10/06/2009	US7598808 Gigabit ethernet transceiver with analog front end
10/06/2009	US7598480 Apparatus and method of image processing to avoid image saturation
10/06/2009	US7598479 Circuit for varying gain of preamplifier
10/01/2009	WO2009120577A1 Rf transmitter and method of operation
10/01/2009	WO2009118060A1 Receiving circuit having adjustable amplifier unit and method therefor

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