| Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162) |
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| 04/04/2001 | EP1089427A1 Method for the comparison of the amplitudes of two electrical signals |
| 04/04/2001 | EP1025639A4 Transimpedance amplifier with automatic gain control |
| 04/04/2001 | EP1020026A4 Apparatus and method for amplifying a signal |
| 04/04/2001 | CN1289930A Method for comparison of amplitudes of two electric signals |
| 04/03/2001 | US6212479 Super heterodyned power detector with enhanced linearity for use in power leveling loops |
| 04/03/2001 | US6212397 Method and system for controlling remote multipoint stations |
| 04/03/2001 | US6212369 Merged variable gain mixers |
| 04/03/2001 | US6212244 Fast response automatic gain control |
| 04/03/2001 | US6211737 Variable gain amplifier with improved linearity |
| 04/03/2001 | US6211730 Pre-amplifier circuit |
| 04/03/2001 | US6211729 Amplifier circuit with a switch bypass |
| 03/29/2001 | WO2001022575A1 Method and apparatus for providing a constant loop bandwidth of a power control loop system at different power levels |
| 03/28/2001 | CN1289500A Telephone with means for enhancing the subjective signal impression in the presence of noise |
| 03/27/2001 | US6208848 Radio receiver squelch circuit with automatic adjustment of the squelch threshold |
| 03/27/2001 | US6208846 Method and apparatus for enhancing transmitter circuit efficiency of mobile radio units by selectable switching of power amplifier |
| 03/22/2001 | WO2001020807A1 Method and arrangement for automatic gain control of received signals |
| 03/22/2001 | DE10036431A1 OFDM digital broadcast receiver for digital audio broadcast system, controls gain setting unit, so that gain is switched to signal positions other than signal area where input modulating signal is demodulated |
| 03/21/2001 | EP1084532A1 Linear quad variable gain amplifier and method for implementing same |
| 03/21/2001 | EP0929936B1 Multiple preamplifier circuit for a television tuner |
| 03/21/2001 | CN1288302A Mobile station having emitting power control system |
| 03/21/2001 | CN1288297A 接收机 Receiver |
| 03/20/2001 | US6205217 Portable telephone set |
| 03/20/2001 | US6204727 Precision controlled RF power detector circuit |
| 03/20/2001 | US6204702 Arrangement for supplying circuits with direct currents |
| 03/17/2001 | CA2282862A1 Signal-level compensation for communications circuits |
| 03/15/2001 | WO2001018979A2 Method for reducing reception interferences, especially multiway reception interferences, for receiving a radio signal and circuit for carrying out this method |
| 03/15/2001 | WO2001018957A1 Amplifier |
| 03/15/2001 | DE19942889A1 Verfahren zur Reduktion von Empfangsstörungen, insbesondere von Mehrwegempfangsstörungen, beim Empfang eines Rundfunksignals sowie eine Schaltungsanordnung zur Durchführung des Verfahrens A method of reducing reception interference, particularly multipath reception interference, in receiving a broadcast signal, and a circuit arrangement for carrying out the method |
| 03/15/2001 | DE10035066A1 Load adjusting system for power amplifier for battery-powered radiotelephone has processing circuit which retrieves stored control values to generate load control signal |
| 03/15/2001 | DE10013716A1 Transmit power control method for wireless communication terminal calculates compensation value for loss due to temperature variations |
| 03/14/2001 | EP1083668A1 Radio terminal unit |
| 03/14/2001 | EP1083667A1 Radio terminal device |
| 03/14/2001 | EP1083656A2 Switched signal processing circuit |
| 03/14/2001 | EP1082817A1 Merged variable gain mixers |
| 03/14/2001 | EP1082811A1 Pre-recorded sigma delta values for power amplifier control |
| 03/14/2001 | EP1082810A1 A gain control circuit and method for providing gain control of a variable amplifier using a pilot signal |
| 03/14/2001 | CN1287411A Radio receiver, radio receiving method and recording medium |
| 03/14/2001 | CN1287407A Power amplifier for mobile telephone set |
| 03/13/2001 | US6201873 Loudspeaker-dependent audio compression |
| 03/13/2001 | US6201537 Sound control circuit and method using microcomputer |
| 03/13/2001 | US6201440 Power amplifier and control circuit thereof |
| 03/08/2001 | WO2001017107A1 Adaptive rf amplifier prelimiter |
| 03/08/2001 | CA2634485A1 Adaptive rf amplifier prelimiter |
| 03/07/2001 | EP1081851A2 Limiting method and limiter apparatus |
| 03/07/2001 | EP1081850A2 Power amplifying apparatus for mobile phone |
| 03/07/2001 | CN1286542A Amplitude limit method and amplitude limiter device |
| 03/06/2001 | US6198349 Variable gain amplifier having a maximum attenuation-factor limiting resistor |
| 03/06/2001 | US6198347 Driving circuits for switch mode RF power amplifiers |
| 03/06/2001 | US6197702 Fabrication process of a semiconductor integrated circuit device |
| 03/01/2001 | WO2001015317A1 Automatic gain control loop for frequency conversion of quadrature signals |
| 02/28/2001 | EP0806081B1 Circuit for briefly muting the reproduction of a low-frequency signal in a radio receiver |
| 02/28/2001 | CN1285984A Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel |
| 02/28/2001 | CN1285967A VHF/UHF self-tuning planar antenna system |
| 02/27/2001 | US6195439 Voice signal processor |
| 02/27/2001 | US6195438 Method and apparatus for leveling and equalizing the audio output of an audio or audio-visual system |
| 02/27/2001 | US6195399 Method and apparatus for converting a wideband if signal to a complex (quadrature) baseband signal |
| 02/27/2001 | US6194964 Predistorter having an automatic gain control circuit and method therefor |
| 02/27/2001 | US6194963 Circuit and method for I/Q modulation with independent, high efficiency amplitude modulation |
| 02/22/2001 | DE10029057A1 Mobiltelefon mit einer Digitalisierungskette mit rasch veränderlichem Verstärkungsgrad und Digitalisierungsverfahren durch ein solches Telefon Mobile phone with a digitization chain with rapidly varying gain and digitization processes under such phone |
| 02/21/2001 | EP1077577A1 Radio receiver and received power amplifying method |
| 02/21/2001 | EP1076928A1 User adjustable volume control that accommodates hearing |
| 02/21/2001 | CN1285133A Peak to peak signal detector for audio system |
| 02/21/2001 | CN1062396C Method and arrangement for controlling the operation of high-frequency power amplifier |
| 02/21/2001 | CN1062395C Method and arrangement for controlling the operation of high-frequency power amplifier |
| 02/20/2001 | US6192226 Carrier squelch processing system and apparatus |
| 02/20/2001 | US6192011 Gain controlling apparatus and method, information reproducing apparatus and method, and information recording apparatus and method |
| 02/20/2001 | US6191725 Automatic gain control for digital radar intercept receivers |
| 02/20/2001 | US6191653 Circuit and method for linearizing amplitude modulation in a power amplifier |
| 02/20/2001 | CA2296861C Television receiver for tuning a signal including a pilot signal |
| 02/20/2001 | CA2296855C Receiving and demodulating a digital television signal |
| 02/15/2001 | WO2001011769A1 Methods for calibration of radio devices at room temperature |
| 02/15/2001 | WO2001011768A1 Method and device for operating a radio frequency power amplifier |
| 02/15/2001 | DE10026152A1 Wireless transceiver for CDMA or FDMA controls quiescent current of amplifier such that it remains in linear gain region for received signals |
| 02/14/2001 | EP1076420A1 Transmission power control device and transmissiom power control method |
| 02/14/2001 | CN1284215A VHF/UHF self-tuning planar antenna system |
| 02/14/2001 | CN1283894A Integrated free plate automatic calibration of low distortion amplifier |
| 02/13/2001 | US6188283 Amplifier and semiconductor device therefor |
| 02/13/2001 | US6188277 Power amplifier having monitoring and circuit protection |
| 02/08/2001 | WO2001010020A1 Filter banked gain control of audio in a noisy environment |
| 02/08/2001 | WO2001010019A2 Device for amplifying a signal emitted by a ray detector |
| 02/08/2001 | WO2001010015A1 Driving circuits for switch mode rf power amplifiers |
| 02/08/2001 | WO2001010013A1 High-efficiency modulating rf amplifier |
| 02/08/2001 | DE19937199A1 Noise barrier for digital high frequency receiver derives absolute magnitude of phase noise from differential phase of digital baseband signal after high pass filtering, compares with demand |
| 02/08/2001 | DE10035065A1 Schaltung zur Leistungsverstärkung mit Versorgungseinstellung zur Steuerung der Leistung des benachbarten Kanals und des übernächsten Kanals Circuit for power amplification with care setting to control the power of the adjacent channel and of the next channel |
| 02/07/2001 | EP1075081A2 Detector driven bias circuit for power transistors |
| 02/07/2001 | CN1283334A Proframmable linear receiver |
| 02/07/2001 | CN1283006A Communication equipment, radio communication system and automatic gain control method of radio communication equipment |
| 02/06/2001 | US6184752 Amplifier device with digitally controllable gain and optical disc read apparatus incorporating such a device |
| 02/06/2001 | US6184751 Amplifier circuit |
| 02/01/2001 | WO2001008442A2 Method and agc device for controlling the amplification of a microphone with an integrated amplifier with a working point which can be adjusted by external wiring |
| 02/01/2001 | WO2001008320A1 Method and apparatus for distortion compensation of radio device |
| 02/01/2001 | WO1999066751A8 Gsm time squelch |
| 01/31/2001 | EP1073196A2 Signal notching system for limiting signal peaks |
| 01/31/2001 | CN1282151A Power amplifying circuit with power supply regulator for controlling adjacent and alternate channel power |
| 01/31/2001 | CN1282143A Power amplification circuit with load regulator for controlling adjacent and alternate channel power |
| 01/31/2001 | CN1282139A Amplifier load regulating system based on memory |
| 01/31/2001 | CN1061490C Amplifier stage with DB-linear output voltage |
| 01/30/2001 | US6181201 Automatic gain control circuit for controlling multiple variable gain amplifier stages while estimating received signal power |
| 01/30/2001 | US6181188 Apparatus for stabilizing transmission output |
| 01/25/2001 | WO2001006809A1 Sound-reproduction device |