| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 01/10/2002 | US20020003836 Digital demodulation apparatus |
| 01/10/2002 | US20020003586 Tuner of the type having zero intermediate frequency and corresponding control process |
| 01/09/2002 | EP1170860A1 Improved multi-carrier receiver for radio telecommunications network |
| 01/09/2002 | CN1330811A Method and apparatus for automatic gain control |
| 01/09/2002 | CN1077746C Output power controller |
| 01/09/2002 | CN1077745C 功率放大器及无线电发射机 Power amplifiers and radio transmitters |
| 01/08/2002 | US6337974 Cellular mobile telephone terminal |
| 01/08/2002 | US6337876 Control of power ratios for in-phase and quadrature channels in a communications system |
| 01/08/2002 | CA2228347C Active apd gain control for an optical receiver |
| 01/03/2002 | WO2002001748A2 Improved multi-carrier receiver for a radio telecommunications network |
| 01/03/2002 | WO2002001713A2 Dynamic range extension with gain correction |
| 01/03/2002 | WO2001067593A3 Improved method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio |
| 01/03/2002 | WO2001026222A9 Dynamic closed-loop audio amplifier system |
| 01/03/2002 | US20020002067 Booster for amplifying the transmission output of a handy phone |
| 01/03/2002 | US20020000882 Protection circuit for extending headroom with off-chip inductors |
| 01/03/2002 | US20020000880 Extended range variable gain amplifier |
| 01/03/2002 | US20020000866 Temperature-compensated diode rectifier circuit for an HF level controller |
| 01/02/2002 | EP1168616A2 Automatic gain-controlled VHF/UHF antenna tuning apparatus |
| 01/02/2002 | EP1168605A2 Automatic gain control apparatus |
| 01/02/2002 | EP1166453A1 Method for interference detection and cancellation in a transmission system |
| 01/02/2002 | EP1166439A1 Power amplifier unit |
| 01/02/2002 | CN1329773A Amplitude modulation o phase modulation cancellation method in an RF amplifier |
| 01/02/2002 | CN1329413A Radio communication device and transmitted power control method |
| 01/02/2002 | CN1329405A Digital broadcasting receiver |
| 01/01/2002 | US6335925 Time division multiple access system radio equipment and synthesizer output level adjusting circuit |
| 01/01/2002 | CA2220922C Automatic predistortion adjusting circuit having stable non-linear characteristics regardless of input signal frequency |
| 12/27/2001 | WO2001099285A1 Programmable gain amplifier for use in a data network |
| 12/27/2001 | WO2001099275A1 Signal modulation |
| 12/27/2001 | WO2001058014A3 Measuring antenna signal strength with automatic gain control receiver |
| 12/27/2001 | US20010055956 Automatic gain control apparatus |
| 12/27/2001 | US20010055955 Device for generating an ac amplitude-dependent indicator |
| 12/27/2001 | US20010054931 Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio |
| 12/25/2001 | US6334050 Arrangement and a method relating to a radio unit |
| 12/25/2001 | US6333676 Control method and control arrangement |
| 12/25/2001 | US6333675 Variable gain amplifier with gain control voltage branch circuit |
| 12/20/2001 | US20010053680 Automatic gain control circuit for controlling two AGC amplifiers |
| 12/20/2001 | US20010053229 Apparatus and method for noise-dependent adaptation of an acoustic useful signal |
| 12/19/2001 | EP1164788A2 Digital broadcast receiving apparatus |
| 12/19/2001 | EP1164715A2 Transmission power control method for a radio communications apparatus |
| 12/19/2001 | EP1082817A4 Merged variable gain mixers |
| 12/19/2001 | EP1018225B1 Method for managing power supply to a cellular radiotelephone station |
| 12/19/2001 | CN1327640A Apparatus and method for compensating RF gain based on measured RF noise |
| 12/18/2001 | US6331802 Linear gain control amplifier |
| 12/13/2001 | US20010051513 Power amplification system with intelligent control of amplifier modules |
| 12/13/2001 | US20010051511 Transmitting power control equipment and transmitting equipment |
| 12/13/2001 | US20010050625 Method and apparatus for automatic gain control |
| 12/13/2001 | DE10025837A1 Broadband receiver controls attenuation range depending on input to control amplifier |
| 12/12/2001 | EP1162731A2 Microwave amplifying circuit, microwave amplifying device, and distortion compensation circuit |
| 12/12/2001 | CN1326615A Data transfer in fixed-site radio transceiver station with power supply current |
| 12/12/2001 | CN1326612A Circuit and method for linearizing amplitude modulation in power amplifier |
| 12/12/2001 | CN1326610A Method and apparatus for preventing power amplifier saturation |
| 12/12/2001 | CN1326609A Circuit and method for I/Q modulation with independent, high efficiency amplitude modulation |
| 12/12/2001 | CN1326164A Analog multiply circuit and gain variable amplify circuit |
| 12/11/2001 | US6330272 Receiving a spread spectrum data signal using determined weights |
| 12/11/2001 | US6329881 Preamplifier |
| 12/11/2001 | US6329880 Radio frequency transmitting circuit |
| 12/11/2001 | US6329871 Reference voltage generation circuit using source followers |
| 12/11/2001 | US6329802 Method and apparatus for programmable power curve and wave generator |
| 12/06/2001 | WO2001093437A1 Digitized automatic gain control system and methods for a controlled gain receiver |
| 12/06/2001 | US20010049566 Apparatus and method for controlling audio output in a mobile terminal |
| 12/06/2001 | US20010048727 Method and apparatus for automatic gain control on a time slot by time slot basis |
| 12/06/2001 | US20010048336 Analog multiplying circuit and variable gain amplifying circuit |
| 12/06/2001 | US20010048292 Circuit configuration for controlling the transmitting power of a battery-operated transceiver |
| 12/05/2001 | EP1160995A1 Mobile terminal for a wireless telecommunication system |
| 12/05/2001 | EP1160717A1 Analog multiplying circuit and variable gain amplifying circuit |
| 12/05/2001 | EP0904633A4 Power delivery system and method of controlling the power delivery system for use in a radio frequency system |
| 12/05/2001 | CN1325183A Electronic apparatus comprising an audio-frequency amplifier and method for controlling said electronic apparatus |
| 12/05/2001 | CN1325182A Feedforward amplifier |
| 12/04/2001 | US6327631 Signal processing apparatus |
| 12/04/2001 | US6327483 Mobile radio communication equipment |
| 12/04/2001 | US6327462 System and method for dynamically varying operational parameters of an amplifier |
| 12/04/2001 | US6326848 Circuits and methods for monitoring a signal in a network |
| 12/04/2001 | US6326842 Variable gain amplifying apparatus which can change a gain during an operation |
| 11/30/2001 | CA2349019A1 Analog multiplying circuit and variable gain amplifying circuit |
| 11/29/2001 | WO2001091522A2 Method and apparatus for programmable power curve and wave generator |
| 11/29/2001 | WO2001037436A3 Complex filtering/agc radio receiver architecture for low-if or zero-if |
| 11/29/2001 | US20010046846 Mobile terminal and reception gain control method in mobile terminal |
| 11/28/2001 | EP1158706A1 RDS decoder for reducing the influence of noise peaks using a noise blanker |
| 11/28/2001 | EP1158667A2 Digital demodulation apparatus |
| 11/28/2001 | EP1158666A1 Circuit arrangement and method for discrete-time regulation of the output power of a transmission device |
| 11/28/2001 | EP1158661A2 Feed-forward amplifier |
| 11/28/2001 | EP1157458A1 Multiple stage high dynamic range variable gain amplifier |
| 11/28/2001 | EP0777933B1 Spread spectrum radiotelephone having adaptive transmitter gain control |
| 11/28/2001 | EP0721715B1 Multiple antenna home base for digital cordless telephones |
| 11/27/2001 | US6324387 LNA control-circuit for receive closed loop automatic gain control |
| 11/27/2001 | US6324230 Multimode fast attack automatic gain control (AGC) loop for narrow band receivers |
| 11/27/2001 | US6324229 Self-clocking automatic digital level control method and apparatus |
| 11/22/2001 | WO2001089169A1 Gain controller for quadrature tranceiver |
| 11/22/2001 | US20010044666 Automation of signal processing apparatus |
| 11/22/2001 | US20010044287 Automatic gain control method and apparatus, and radio communications apparatus having automatic gain control function |
| 11/22/2001 | US20010044285 Radio broadcasting receiver |
| 11/22/2001 | US20010044283 Radio apparatus and method having a d.c. component signal superposed on a transmission signal |
| 11/22/2001 | US20010043704 Microphone-tailored equalizing system |
| 11/22/2001 | US20010043130 Directional coupler, high frequency circuit module and wireless communication system |
| 11/22/2001 | US20010043118 Feed-forward amplifier |
| 11/21/2001 | EP1156590A1 Receiver and gain control method |
| 11/21/2001 | EP0835552B1 Adaptive gain controller |
| 11/21/2001 | CN1075301C Signal multiplexer and multiplexing method |
| 11/21/2001 | CN1075286C 功率放大器电路 Power amplifier circuit |
| 11/20/2001 | US6321074 Apparatus and method for reducing oscillator frequency pulling during AM modulation |