| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 11/05/2008 | EP1595329A4 Improving the efficiency of power amplifiers in devices using transmit beamforming |
| 11/05/2008 | CN201146482Y Circuit for detecting radio frequency power |
| 11/05/2008 | CN101299597A Digital type phase jitter modulation amplitude automatic gain control circuit |
| 11/05/2008 | CN100431262C A power amplifier system |
| 11/05/2008 | CN100430732C Amplifier with gain in direct proportion to power voltage |
| 11/04/2008 | US7447321 Sound processing system for configuration of audio signals in a vehicle |
| 11/04/2008 | US7447284 Method and apparatus for signal noise control |
| 11/04/2008 | US7447283 Method for automatic gain control, for instance in a telecommunication system, device and computer program product therefor |
| 11/04/2008 | US7446605 Amplifier arrangement with controllable gain and method for controlling an amplifier gain |
| 10/30/2008 | US20080268802 Radio receiver that changes function according to the output of an internal voice-only detector |
| 10/30/2008 | US20080267419 Systems and Methods for Inducing Effects In A Signal |
| 10/30/2008 | US20080267418 Method and apparatus for dynamically adjusting the spectral content of an audio signal |
| 10/30/2008 | US20080267319 Direct conversion rf transceiver for wireless communications |
| 10/30/2008 | US20080266176 Power amplifier adjustment for transmit beamforming in multi-antenna wireless systems |
| 10/30/2008 | US20080265995 Amplifier circuit and wireless communication device |
| 10/30/2008 | US20080265994 Variable gain amplifying apparatus and wireless communication apparatus |
| 10/30/2008 | US20080265991 Gain control module and applications thereof |
| 10/29/2008 | EP1986331A1 A method for making a power amplifier support multi-power, a radio frequency module and a testing method |
| 10/29/2008 | EP1985015A2 Amplitude error de-glitching circuit and method of operating |
| 10/29/2008 | EP1984979A2 Power amplifier controller circuit |
| 10/29/2008 | EP1984978A2 Amplifier compression controller circuit |
| 10/29/2008 | EP1984918A2 Voice amplification apparatus |
| 10/29/2008 | EP1563600B1 Systems and methods of dynamic bias switching for radio frequency power amplifiers |
| 10/29/2008 | CN201140689Y Intelligent horn of vehicle |
| 10/29/2008 | CN101297478A Method and device for controlling two peak power levels for a amplifier in pulsed mode |
| 10/29/2008 | CN101295966A Self-tracing automatic gain control method |
| 10/29/2008 | CN101295965A Digital automatic gain control circuit apparatus |
| 10/29/2008 | CN100429875C Signal strength compensation for mobile radio channels that considerably vary with time |
| 10/28/2008 | US7444125 Communications signal amplifiers having independent power control and amplitude modulation |
| 10/28/2008 | US7444124 Adjustable segmented power amplifier |
| 10/28/2008 | US7443435 Column amplifier with automatic gain selection for CMOS image sensors |
| 10/28/2008 | US7443246 Constant current biasing circuit for linear power amplifiers |
| 10/28/2008 | US7443245 High frequency power amplifier circuit and electronic component for high frequency power amplifier |
| 10/28/2008 | US7443244 Method and apparatus for controlling a power amplifier supply voltage |
| 10/28/2008 | US7443243 High frequency amplifier having an attenuator |
| 10/28/2008 | US7443242 AGC circuit |
| 10/28/2008 | US7443240 AM intermediate frequency variable gain amplifier circuit, variable gain amplifier circuit and its semiconductor integrated circuit |
| 10/23/2008 | US20080260168 Method and apparatus for providing privacy for telephone conversations |
| 10/23/2008 | US20080258818 Amplifier with progammable input impedance |
| 10/23/2008 | US20080258817 Hybrid concurrent and switched dual-band low noise amplifier |
| 10/23/2008 | DE102007014551A1 Controller for use in cable TV, has controllable damping element staying in connection with transducer, where powers are detected depending on adjustment of controllable damping element and controllable sloping position actuator |
| 10/23/2008 | DE10045560B4 Selbsttastende Pegelregelung Even Momentary level control |
| 10/22/2008 | EP1983646A1 Noise blanker circuit and method for removing noise and correcting a signal |
| 10/22/2008 | EP1982400A1 Power supply for limited power sources and audio amplifier using power supply |
| 10/22/2008 | CN101291140A Rapid recovery circuit of AGC chip full-power backspacing detection wave voltage |
| 10/22/2008 | CN101291139A Digital volume control device and controlling method thereof |
| 10/22/2008 | CN100428628C Variable gain control circuit and integrated circuit device having the same |
| 10/21/2008 | US7440738 Automatic gain control with two power detectors |
| 10/21/2008 | US7440733 Constant gain nonlinear envelope tracking high efficiency linear amplifier |
| 10/21/2008 | US7440577 Methods and apparatus for automatic mixing of audio signals |
| 10/21/2008 | US7440576 Apparatus and method for reconstructing high frequency part of signal |
| 10/21/2008 | US7439807 Method and system for generating a temperature-compensated control signal |
| 10/21/2008 | US7439806 Bias control circuit and method of controlling bias of RF power amplifier |
| 10/16/2008 | WO2008103094A3 Reducing automatic gain control process in time division duplex communication mode |
| 10/16/2008 | WO2008091820A3 Unity gain voltage buffer with dual supply voltage |
| 10/16/2008 | US20080253588 Digital volume controller and control method thereof |
| 10/16/2008 | US20080253587 Method for automatically adjusting audio volume and audio player |
| 10/16/2008 | US20080253586 Systems and methods for controlling audio loudness |
| 10/16/2008 | US20080253585 Apparatus and method for controlling volume |
| 10/16/2008 | US20080253584 Audio playing systems |
| 10/16/2008 | US20080252378 Gain Adjustment for Programmable Gain Amplifiers |
| 10/16/2008 | US20080252377 Low noise amplifier having improved linearity |
| 10/16/2008 | DE4427912B4 Verfahren und Einrichtung zur Anpassung von Ausgangssignalen eines Tonwiedergabegerätes an den Geräuschpegel im Fahrgastraum eines Kraftfahrzeuges Method and apparatus for adjusting output signals of a Tonwiedergabegerätes to the background noise in the passenger compartment of a motor vehicle |
| 10/16/2008 | DE102007016284A1 Audio output device for audio/video playing device, has loudspeaker module with interface, where resistance values are reduced if one connecting point is coupled with another connecting point and volume value is lower than loudspeaker value |
| 10/16/2008 | CA2626622A1 Systems and methods for controlling audio loudness |
| 10/15/2008 | EP1184999B1 Method and device for adjusting the amplification of a signal transmitted by a mobile terminal in order to increase battery life |
| 10/15/2008 | EP1091516B1 Base station device and method of suppressing peak current |
| 10/15/2008 | CN201134899Y Mobile terminal with automatic switching function |
| 10/15/2008 | CN201134787Y Velocity tracking automotive horn volume controller |
| 10/15/2008 | CN100426690C System and method for a direct conversion multi-carrier processor |
| 10/15/2008 | CN100426666C Method for automatic amplification of volume |
| 10/15/2008 | CN100426665C Automatic gain control for a tuner |
| 10/14/2008 | US7436913 Automatic gain control apparatus |
| 10/14/2008 | CA2401893C Digital-to-analog interface circuit having adjustable time response |
| 10/14/2008 | CA2313471C Programmable linear receiver |
| 10/09/2008 | WO2008121650A1 Audio signal processing system for live music performance |
| 10/09/2008 | US20080247570 Sound output device with earphone mode and speaker mode |
| 10/09/2008 | US20080246544 Offset adjustment device, semiconductor device, display device, offset adjustment method, noise detection device, and noise detection method |
| 10/09/2008 | DE112006003416T5 Verbesserte Bandbreitenhüllsignalauslöschung und -wiederherstellung Improved Bandbreitenhüllsignalauslöschung and recovery |
| 10/09/2008 | DE10043436B4 Verfahren und Schaltung zur automatischen Verstärkungsregelung eines Signalverstärkers Method and circuit for automatic gain control of a signal amplifier |
| 10/08/2008 | EP1977509A1 Method and apparatus for achieving linear monotonic output power |
| 10/08/2008 | EP1977508A2 Auditory perception controlling device and method |
| 10/08/2008 | EP1299922B1 Successive log video pad power detector and method |
| 10/08/2008 | CN201130941Y 下行功率放大装置 Downlink power amplification device |
| 10/08/2008 | CN101282111A Method and system for controlling sound volume adjustment |
| 10/08/2008 | CN101281726A Automatic control system for image and sound |
| 10/08/2008 | CN100424994C Attenuation control for digital power converters |
| 10/07/2008 | US7433477 Audio superpositioning |
| 10/07/2008 | US7433476 Automatic gain control |
| 10/07/2008 | US7433431 Staggered AGC with digitally controlled VGA |
| 10/07/2008 | US7432765 Variable gain amplifier, mixer and quadrature modulator using the same |
| 10/02/2008 | WO2008118755A1 Methods and apparatus for initial acquisition gain control in a communication system |
| 10/02/2008 | WO2008117391A1 Acoustic control device, acoustic control method, acoustic control program, and recording medium |
| 10/02/2008 | WO2008117337A1 Level regulator, av processor and program |
| 10/02/2008 | WO2008088635A3 Automatic gain control using multiple equalized estimates and dynamic hysteresis |
| 10/02/2008 | WO2008076822A3 Adaptive bias technique for field effect transistor |
| 10/02/2008 | WO2008002925A3 Early energy measurement |
| 10/02/2008 | US20080240462 Pattern detection circuitry |
| 10/02/2008 | US20080240451 Sound output device |
| 10/02/2008 | US20080240259 Gain control method and apparatus |