| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 01/15/2009 | US20090015335 Variable-Gain Image-Reject Low-Noise Amplifier |
| 01/15/2009 | US20090015333 Power amplifier module and a time division multiple access radio |
| 01/15/2009 | US20090015324 Power amplifier amplitude modulator system and method |
| 01/14/2009 | EP2015461A2 Impulse Noise Detection and Mitigation in Receivers |
| 01/14/2009 | EP2013969A1 Device and method for amplification of radiocommunication signals |
| 01/14/2009 | CN201182004Y Microphone with automatic gain control function |
| 01/14/2009 | CN101345334A Printing antenna system of vehicle rear window glass |
| 01/14/2009 | CN101345333A Printing antenna system of vehicle rear window glass |
| 01/14/2009 | CN100452849C Method for gradually adjusting the volume level of a digital signal within a predefined time and its processor |
| 01/14/2009 | CN100452664C Device and method for cdma-signal power estimation |
| 01/14/2009 | CN100452663C Transmission device, transmission power control method, and radio communication device |
| 01/13/2009 | US7477883 Receiver front-end sensitivity booster |
| 01/13/2009 | US7477706 Switched capacitor network for tuning and downconversion |
| 01/13/2009 | US7477327 Analog/digital-compatible front-end module |
| 01/13/2009 | US7477106 Power amplifier with bias control |
| 01/13/2009 | US7476839 Amplifier circuit for optical disk drive |
| 01/08/2009 | WO2009005768A1 Systems and methods of rf power transmission, modulation, and amplification |
| 01/08/2009 | WO2009005692A1 Apparatus and method for artificial reverberation |
| 01/08/2009 | WO2005091980A3 Coaxial communication active tap device and distribution system |
| 01/08/2009 | US20090010456 Method and device for voice operated control |
| 01/08/2009 | US20090010442 Method and device for background mitigation |
| 01/08/2009 | US20090009252 RF Variable Gain Amplifier |
| 01/08/2009 | US20090009251 Feedback limiter with adaptive time control |
| 01/08/2009 | DE102005024844B4 Verfahren und Vorrichtung zur Steuerung der Sprechverbindung in einer Notrufanlage mit mindestens einer Leitstelle und mindestens einem örtlich fest installierten Notrufgerät Method and apparatus for controlling the voice communication in an emergency call system with at least one monitoring station and at least one locally fixed emergency unit |
| 01/07/2009 | EP2011260A2 Method and apparatus for adaptively controlling signals |
| 01/07/2009 | EP2011234A1 Audio gain control using specific-loudness-based auditory event detection |
| 01/07/2009 | EP2011233A1 Automatic switched gain amplifier for mobile reception |
| 01/07/2009 | EP1925185B1 Method for attenuating interfering noise and corresponding hearing device |
| 01/07/2009 | EP1456943B8 Attenuation control for digital power converters |
| 01/07/2009 | CN101341654A Input drive control for switcher regulated power amplifier modules |
| 01/07/2009 | CN101341653A Improved control of switcher regulated power amplifier modules |
| 01/07/2009 | CN101340196A Multichannel digital detection IF amplifier |
| 01/07/2009 | CN100450239C Attenuator with switching function and portable telephone terminal device adapting such attenuator |
| 01/06/2009 | US7474902 Method of controlling transmission power and subscriber equipment |
| 01/06/2009 | US7474883 Radio communication received having automatic gain control based on measured and received energy |
| 01/06/2009 | US7474882 System and method for RF gain control |
| 01/06/2009 | US7474877 Method for monitoring an RF power amplifier, and an RF device, a monitoring device, and an MR system corresponding thereto |
| 01/06/2009 | US7474753 Sound field control apparatus, signal processing apparatus, sound field control program, and signal processing program |
| 01/06/2009 | US7474715 Variable load circuit for reducing quadrature phase error |
| 01/06/2009 | US7474149 Radio frequency power amplifier and method using a controlled supply |
| 01/06/2009 | CA2502160C Set volume control device for on-vehicle audio system |
| 01/02/2009 | DE102007030070A1 Audio signal's volume level adjusting method for audio system of motor vehicle, involves continuously increasing volume level of sound having relatively low output value over adjustable delay period of five seconds |
| 01/01/2009 | US20090003614 Apparatus and method for artificial reverberation |
| 01/01/2009 | US20090002073 Wideband Variable Gain Amplifier With Clipping Function |
| 01/01/2009 | US20090002068 Dynamic Biasing System For An Amplifier |
| 12/31/2008 | WO2006086094A3 Self-orienting audio system |
| 12/31/2008 | EP2009786A1 Feedback limiter with adaptive control of time constants |
| 12/31/2008 | CN101335547A RF signal double / single conversion implementing and gain adjustable front-located power amplifier integrate circuit |
| 12/31/2008 | CN101335505A Gain control circuit of wireless receiver |
| 12/31/2008 | CN100448166C Amplifier circuit |
| 12/30/2008 | US7471941 Amplifier assembly including variable gain amplifier, parallel programmable amplifiers, and AGC |
| 12/30/2008 | US7471935 Automatic level control |
| 12/30/2008 | US7471797 Networked sound masking system with centralized sound masking generation |
| 12/30/2008 | US7471748 Communication semiconductor integrated circuit, radio communication system, and adjustment method of gain and offset |
| 12/30/2008 | US7471738 Method and apparatus for optimizing transmitter power efficiency |
| 12/30/2008 | US7471147 Automatic gain controller |
| 12/30/2008 | US7471146 Optimized circuits for three dimensional packaging and methods of manufacture therefore |
| 12/27/2008 | CA2632490A1 Autonomous fitness for service assessment |
| 12/25/2008 | US20080318640 Voice Input-Output Device and Communication Device |
| 12/25/2008 | US20080317253 Audio processing systems |
| 12/25/2008 | US20080315953 Variable Gain Mixer |
| 12/25/2008 | CA2635154A1 Feedback limiter with adaptive time control |
| 12/24/2008 | WO2008156427A1 Automatic gain control circuit for volume control and corresponding method for volume control |
| 12/24/2008 | WO2008156156A1 Variable gain amplifier |
| 12/24/2008 | WO2008156155A1 Variable gain amplifier |
| 12/24/2008 | WO2008134420A3 Power amplifier adjustment for transmit beamforming in multi-antenna wireless systems |
| 12/24/2008 | EP2005586A1 Method and system for automatic gain control during signal acquisition |
| 12/24/2008 | EP2005585A1 Method and system for automatic gain control with intelligent selection of signal samples |
| 12/24/2008 | EP2005584A1 A scheme to alleviate signal degradation caused by digital gain control loops |
| 12/24/2008 | EP2005583A2 Automatic gain control |
| 12/24/2008 | DE19910371B4 Empfänger mit automatischer Hochfrequenzsignal-Verstärkungssteuerschaltung Receiver with automatic high-frequency signal gain control circuit |
| 12/24/2008 | DE102007026930A1 Power amplifier system has power amplifier and power amplifier input is connected with upper power supply level, which are different and control device is designed such that device operates power amplifier |
| 12/24/2008 | CN101330279A Automatic gain control circuit, receiving apparatus and automatic gain control method |
| 12/24/2008 | CN101330278A Gain programmable vision buffer amplifier circuit with SAG compensation |
| 12/24/2008 | CN101330277A Circuit and method for eliminating horn popping when turning on and turning down power amplifier |
| 12/24/2008 | CN100446553C System and method for TV automatic gain control (agc) |
| 12/23/2008 | US7469134 Mobile communication terminal apparatus, a variable gain amplifier circuit and a gain control circuit |
| 12/23/2008 | US7469051 Method and apparatus for maintaining audio level preferences in a communication device |
| 12/18/2008 | WO2008095985A3 A multi-rate tracking circuit |
| 12/18/2008 | WO2008008417A3 Microphone bleed simulator |
| 12/18/2008 | US20080313696 Thermal Pad Controlled Equalizer |
| 12/18/2008 | US20080311864 Determining the Current Value of Transmission Power of a Radio Telecommunication Device |
| 12/18/2008 | US20080310652 Device and Method for Audio Signal Gain Control |
| 12/18/2008 | US20080310642 Active sound control apparatus |
| 12/18/2008 | US20080308713 Variable gain constant bandwidth trans-impedance amplifier for fiber optic rate sensor |
| 12/17/2008 | EP2003774A1 Variable gain constant bandwidth trans-impedance amplifier for fiber optic rate sensor |
| 12/17/2008 | EP2002651A1 Automatic gain control circuit |
| 12/17/2008 | EP2002429A1 Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal |
| 12/17/2008 | CN101325819A Electroacoustic transformator |
| 12/17/2008 | CN101325431A Method for interception of impulse radio signal based on amplitude statistics |
| 12/17/2008 | CN101325407A Amplifier |
| 12/17/2008 | CN101325406A Method and apparatus for automatically adjusting sound volume |
| 12/16/2008 | US7467020 Method for gradually adjusting the volume level of a digital signal within a predefined time using a volume control circuit |
| 12/16/2008 | US7466832 Seatback audio controller |
| 12/16/2008 | US7466827 System and method for simulating audio communications using a computer network |
| 12/16/2008 | US7466776 Automatic gain control method and apparatus in communication system having discontinuous transmission mode |
| 12/16/2008 | US7466196 Detector for automatic gain control |
| 12/16/2008 | US7466195 Error driven RF power amplifier control with increased efficiency |
| 12/16/2008 | US7465912 Integrated realization of sensing and processing |
| 12/11/2008 | WO2008149881A1 Voltage-to-current converter and filter circuit using the same |