| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 04/28/2004 | CN1492578A Heat protective system of amplifier output stage |
| 04/28/2004 | CN1148059C Method and device for automatic compensating sound volume |
| 04/27/2004 | US6728524 Automatic gain control circuit for controlling two AGC amplifiers |
| 04/27/2004 | US6728366 Signal level adjustment arrangement |
| 04/27/2004 | US6728299 Transmitter gain control for CDMA signals |
| 04/27/2004 | US6727771 Semiconductor integrated circuit device with variable gain amplifier |
| 04/27/2004 | US6727760 Output power control system |
| 04/27/2004 | US6727759 Collective automatic gain control |
| 04/27/2004 | US6727746 Radio frequency amplifier and television tuner |
| 04/22/2004 | WO2004034577A1 Digital audio amplifier including phase lead-lag compensator for increasing self-oscillation frequency |
| 04/22/2004 | WO2004034576A1 Differential amplifier and calculation amplifier |
| 04/22/2004 | WO2004019488A3 Methods of receiving communications signals including a plurality of digital filters having different bandwidths and related receivers |
| 04/22/2004 | WO2003043186A3 Automatic gain control circuit with miltiple input signals |
| 04/22/2004 | US20040078104 Method and apparatus for an in-vehicle audio system |
| 04/22/2004 | US20040077369 Power amplification system and method |
| 04/22/2004 | US20040077326 Fast settling variable gain amplifier with DC offset cancellation |
| 04/22/2004 | US20040077324 Direct conversion of low power high linearity receiver |
| 04/22/2004 | US20040076302 Device for the noise-dependent adjustment of sound volumes |
| 04/22/2004 | US20040076227 Operating element with settable selectivity |
| 04/22/2004 | US20040075501 High frequency power amplification electric part and wireless communication system |
| 04/22/2004 | US20040075496 Amplifier apparatus and receiver |
| 04/22/2004 | US20040075494 Power amplification circuit and method for supplying power at a plurality of desired power output levels |
| 04/22/2004 | US20040075493 Level shifter without dutycycle distortion |
| 04/22/2004 | DE20319202U1 Sound volume regulation method for capacitor microphone involves using a voltage divider having a potentiometer for varying amplitude of output signal |
| 04/21/2004 | EP1411633A2 Improved weak signal processing based on impulse noise blanking |
| 04/21/2004 | EP1411632A2 High frequency power amplifier and wireless communication system |
| 04/21/2004 | EP1411631A2 Power amplification system and method |
| 04/21/2004 | EP1410618A2 Integrated upstream amplifier for cable modems and cable set-top boxes |
| 04/21/2004 | EP1051809A4 Apparatus and method for receiving a wideband communication signal in a wireless communication system |
| 04/21/2004 | EP0909479B1 Differential pair gain control stage |
| 04/21/2004 | CN1491440A Hybrid integrated circuit device and method for fabricating the same and electronic device |
| 04/20/2004 | US6725169 Methods and apparatus for automatic gain control |
| 04/20/2004 | US6725026 Intermodulation control device and method in mobile communication system |
| 04/20/2004 | US6725021 Method for tuning an envelope tracking amplification system |
| 04/20/2004 | US6724259 Variable gain amplifier |
| 04/20/2004 | US6724252 Switched gain amplifier circuit |
| 04/20/2004 | US6724234 Signal-level compensation for communications circuits |
| 04/15/2004 | WO2004032345A1 Transmitting method and transmitter apparatus |
| 04/15/2004 | WO2003073603A3 Current modulator with dynamic amplifier impedance compensation |
| 04/15/2004 | US20040072597 Power amplifier control |
| 04/15/2004 | US20040072554 Automatic-bias amplifier circuit |
| 04/15/2004 | US20040072547 System and method for a direct conversion multi-carrier processor |
| 04/15/2004 | US20040072546 System and Method for Antenna Diversity Using Equal Power Joint Maximal Ratio Combining |
| 04/15/2004 | US20040071237 Receiver and AGC method |
| 04/15/2004 | US20040071236 Digital automatic level control system |
| 04/15/2004 | US20040070457 Method and apparatus for protecting devices in an RF power amplifier |
| 04/15/2004 | DE10296406T5 Automatische Verstärkerregelungsschaltung mit hoher Linearität und monoton-korrelierer Versatzspannung Automatic gain control circuit with high linearity and monotonically-correlator offset voltage |
| 04/15/2004 | DE10197085T5 Quadratur-Oszillator mit Phasenfehlerkorrektur Quadrature oscillator with phase error correction |
| 04/14/2004 | EP1408616A1 Noise cancellor |
| 04/14/2004 | EP1407543A2 Power-controlled transmitter arrangement |
| 04/14/2004 | EP1407542A2 A communication system and arrangements comprising such a communication system |
| 04/14/2004 | EP1145427B1 Automatic gain control for slotted mode operation |
| 04/14/2004 | CN1489830A Time division multiplexing address tranceiver and receiving automatic gain control |
| 04/14/2004 | CN1146158C Radio equipment for time-division multi-address system and regulation circuit for output electric-level of synthesizer |
| 04/14/2004 | CN1146149C Radio communiation equipment and its emitted power controlling method |
| 04/13/2004 | US6721549 Low-noise amplifier for a mobile communication terminal |
| 04/13/2004 | US6721370 Phase correction circuit for radio communication apparatus |
| 04/13/2004 | US6721368 Transmitter architectures for communications systems |
| 04/13/2004 | US6721350 Spread spectrum adaptive power control using a base station |
| 04/08/2004 | WO2004030247A2 Device and method for determining the level of an input signal intended to be applied to a receiving system |
| 04/08/2004 | WO2004030207A2 Variable gain amplifier |
| 04/08/2004 | WO2004030205A1 Start signal output circuit |
| 04/08/2004 | WO2002082642A3 Dynamic biasing of a transmitter |
| 04/08/2004 | US20040067743 Weak signal processing based on impulse noise blanking |
| 04/08/2004 | US20040066943 Mixing console having visual marking system applied to manual operators with subgrouping |
| 04/08/2004 | US20040066235 Low voltage input current mirror circuit and method |
| 04/08/2004 | US20040066230 Low noise amplifier with fixed loss bypass |
| 04/08/2004 | DE19713101B4 Mehrstufige Verstärkerschaltung mit variabler Verstärkung The multistage amplifier circuit having variable gain |
| 04/08/2004 | DE10341792A1 Stereophonie-Gerät mit Mehrfachschaltfunktion und Gerät zum Steuern eines Tonsignals Stereophonic device with multiple switching function and device for controlling an audio signal |
| 04/07/2004 | EP1406382A2 Low noise amplifier with fixed loss bypass |
| 04/07/2004 | EP1405435A2 Device and method for maintaining the transmitting power of a radio at a constant level |
| 04/07/2004 | EP1405409A1 Current controlled power amplifier |
| 04/07/2004 | EP1405405A2 Method for adjusting the amplification of a high frequency signal |
| 04/07/2004 | EP1405089A1 Distortion detector |
| 04/07/2004 | EP1110307A4 Digital automatic gain control |
| 04/07/2004 | EP1020041B1 Method and apparatus for increasing receiver immunity to interference |
| 04/07/2004 | CN1488201A Continuous closed-loop power control system including modulation injection in a wireless transceiver power amplifier |
| 04/07/2004 | CN1488190A High frequency power amplifier and power amplifier module utilizing the same |
| 04/07/2004 | CN1487765A 增益控制电路 The gain control circuit |
| 04/07/2004 | CN1487687A Slicer circuit and CDMA (code division multiple access) communication apparatus |
| 04/07/2004 | CN1145379C Method and device for amplifying transmission power |
| 04/06/2004 | US6718165 Apparatus and method for reducing nonlinear distortion in an automatic gain control system |
| 04/06/2004 | US6718034 Headset interface |
| 04/06/2004 | US6717471 Automatic gain adjustment circuit and amplifier using the same |
| 04/06/2004 | US6717469 Gain control circuit for controlling a gain in a variable gain cell |
| 04/06/2004 | CA2382024C Adaptive rf amplifier prelimiter |
| 04/06/2004 | CA2264175C Muting a microphone in radiocommunication systems |
| 04/01/2004 | WO2004027990A1 Preserving linearity of a rf power amplifier |
| 04/01/2004 | WO2004027989A1 Mitigating the impact of phase steps |
| 04/01/2004 | WO2004027988A1 Variable gain amplifier |
| 04/01/2004 | WO2003105390A3 System and method for a direct conversion multi-carrier processor |
| 04/01/2004 | WO2003075469A3 System and method for antenna diversity using equal power joint maximal ratio combining |
| 04/01/2004 | US20040063414 Feedback loop with slew rate limiter |
| 04/01/2004 | US20040063413 Dual loop automatic gain control |
| 04/01/2004 | US20040062326 Automatic gain control with analog and digital gain |
| 04/01/2004 | US20040061555 Controller for an RF power amplifier |
| 04/01/2004 | US20040061554 Variable gain amplifier for use in communications |
| 03/31/2004 | EP1404147A2 System for inputting speech, radio receiver and communication system |
| 03/31/2004 | EP1402632A2 Optimisation of the operating point of transmitter power amplifiers in mobile stations |
| 03/31/2004 | EP1402631A2 Direct conversion receiver architecture |