| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 02/26/2002 | US6351183 Switched amplifying device |
| 02/26/2002 | US6350981 Photo-sensor |
| 02/21/2002 | WO2002015397A2 Low-loss bypass mode of an amplifier with high linearity and matched impedance |
| 02/21/2002 | WO2002015394A1 Differential complementary amplifier |
| 02/21/2002 | WO2002015393A2 Digital class-d audio amplifier |
| 02/21/2002 | WO2002015391A1 Programmable radio frequency predistortion linearizer and method thereof |
| 02/21/2002 | WO2002015388A2 Amplifier circuits and methods to provide smooth transition of amplifier outputs during powering sequences |
| 02/21/2002 | WO2002015387A2 Amplification systems and methods using fixed and modulated power supply voltages and buck-boost control |
| 02/21/2002 | WO2002015386A2 High-efficiency audio power amplifier |
| 02/21/2002 | WO2002015274A1 Semiconductor device for communication |
| 02/21/2002 | WO2001063767A3 Current-controlled cmos circuits with inductive broadbanding |
| 02/21/2002 | US20020021865 Mode translating waveguide adapter for a quasi-optic grid array |
| 02/21/2002 | US20020021176 Precision low power operational amplifier with gain invariant bandwith |
| 02/21/2002 | US20020021175 Transconductance amplifier based precision half wave and full wave rectifier circuit |
| 02/21/2002 | US20020021171 Low distortion amplifier |
| 02/21/2002 | US20020021169 Combining networks for switchable path power amplifiers |
| 02/21/2002 | US20020021168 Switchable operational amplifier for switched op-amp applications |
| 02/21/2002 | US20020021167 Offset compensation apparatus in a differential amplifier circuit and offset compensation method thereof |
| 02/21/2002 | US20020020894 RF passive circuit and RF amplifier with via-holes |
| 02/21/2002 | DE10103075A1 Operationsverstärker mit vergrößertem Ausgangsbereich Operational amplifiers with increased output range |
| 02/21/2002 | DE10036127A1 Vorrichtung zur Versorgungsspannungsentkopplung für HF-Verstärkerschaltungen Device for supplying voltage for decoupling RF amplifier circuits |
| 02/20/2002 | CN1337090A Active differential to single-ended converter |
| 02/20/2002 | CN1337089A Amplifier circuit |
| 02/20/2002 | CN1336724A High-gain and no-self excitation antenna amplifier |
| 02/20/2002 | CN1336721A Method and device for detecting weak signal of known frequency |
| 02/20/2002 | CN1336720A Power amplifier module of mobile communiation arrangement, terminal and its base station for said arrangement |
| 02/20/2002 | CN1079612C Efficient parallel-stage power amplifier |
| 02/20/2002 | CN1079611C Operational amplifier |
| 02/20/2002 | CN1079610C DC-offset canceler circuit and method for using the circuit |
| 02/19/2002 | US6348839 Delay circuit for ring oscillator |
| 02/19/2002 | US6348837 Bi-directional amplifier having a single gain block for amplifying both forward and reverse signals |
| 02/19/2002 | US6348836 Dual independently clocked analog-to-digital conversion for a digital power amplifier |
| 02/19/2002 | US6348835 Semiconductor device with constant current source circuit not influenced by noise |
| 02/14/2002 | WO2002013377A2 A switched-capacitor, common-mode feedback circuit for a differential amplifier without tail current |
| 02/14/2002 | WO2002013376A2 Method and circuit for a dual supply amplifier |
| 02/14/2002 | WO2002013375A2 Method and apparatus for improving power supply rejection in amplifier rail to rail output stages |
| 02/14/2002 | WO2002013374A1 Noise and input impedance matched amplifier |
| 02/14/2002 | WO2002013373A1 Broad-band driver circuit |
| 02/14/2002 | WO2002013371A2 Driver circuit for subscriber terminals |
| 02/14/2002 | WO2001082472A8 Loss reduction using multiple amplifiers identically divided |
| 02/14/2002 | US20020018282 Electronically tunable and modulatable quasi-optic grid oscillator |
| 02/14/2002 | US20020017954 Linearized power amplifier based on active feedforward-type predistortion |
| 02/14/2002 | US20020017953 Method and circuit for a dual supply amplifier |
| 02/14/2002 | US20020017952 Radio freqency signal output module having radio-frequency power amplifier and isolator element |
| 02/14/2002 | US20020017931 Rail-to-rail driver for use in a regulator, and method |
| 02/14/2002 | US20020017921 Current-controlled CMOS circuits with inductive broadbanding |
| 02/14/2002 | DE10038693A1 Temperature sensor for high frequency digital signal amplifier, has control circuit which calculates difference between voltages of FETs which are operated at different operating points by current generator |
| 02/14/2002 | DE10038321A1 Anpaßschaltung für Audio- und Videosignale Matching circuit for audio and video signals |
| 02/14/2002 | DE10034814A1 Verstärkerschaltung Amplifier circuit |
| 02/13/2002 | EP1179873A1 Radiofrequency output module having power amplifier and isolator |
| 02/13/2002 | EP1179286A2 Transducer driver |
| 02/13/2002 | EP1179222A1 Rf power amplifier with feedback from the isolation port of a hybrid coupler |
| 02/13/2002 | CN2476900Y New-type domestic TV. signal amplifier for wired TV. network two-way transmission |
| 02/13/2002 | CN1336035A Noise reduction scheme for operational amplifiers |
| 02/13/2002 | CN1336034A An amplifier for use in a mobile phone |
| 02/12/2002 | US6346859 Microwave amplifier with reduced beat noise |
| 02/12/2002 | US6346858 Low power supply CMOS differential amplifier topology |
| 02/12/2002 | US6346856 Ultra linear high frequency transconductor structure |
| 02/12/2002 | US6346855 Amplifier arrangement |
| 02/12/2002 | US6346854 Amplifier circuit with reduced DC power related turn-on and turn-off transients |
| 02/12/2002 | US6346852 Class-D amplifier with enhanced bandwidth |
| 02/12/2002 | CA2279077C Method and apparatus for improving efficiency of high-power linear amplifier |
| 02/07/2002 | WO2002011280A1 Electronic circuit for converting a signal and amplifier incorporating same |
| 02/07/2002 | WO2002011234A1 The multi-space structure amplifier |
| 02/07/2002 | US20020015291 Semiconductor device |
| 02/07/2002 | US20020014923 Microwave amplifier with reduced beat noise |
| 02/07/2002 | US20020014922 Supply voltage decoupling device for HF amplifier circuits |
| 02/07/2002 | US20020014920 High frequency power amplifier |
| 02/07/2002 | US20020014919 Electrical arrangement having improved feedback stability |
| 02/07/2002 | US20020014917 Amplifier with output transformer |
| 02/07/2002 | US20020014916 Silent start |
| 02/07/2002 | US20020014911 Semiconductor integrated circuit |
| 02/07/2002 | CA2416329A1 Electronic circuit for converting a signal and amplifier incorporating same |
| 02/06/2002 | EP1178603A1 Interface for audio and video signals |
| 02/06/2002 | EP1178388A1 PCM/PWM converter with PWM power amplifier |
| 02/06/2002 | EP1177620A1 Compensation mechanism for compensating bias levels of an operation circuit in response to supply voltage changes |
| 02/06/2002 | EP1177619A1 Signal treating circuit with a class a/b output stage connectable to a source of multiple supply voltages |
| 02/06/2002 | CN2476137Y Multifunctional audio-visual amplifier equipment |
| 02/06/2002 | CN1334987A Level shift circuit |
| 02/06/2002 | CN1078978C Linearized circuit for linearizing non-linear componnet controlled by control voltage |
| 02/05/2002 | US6344811 Power supply compensation for noise shaped, digital amplifiers |
| 02/05/2002 | US6344777 Highly efficient compact ultra-high power source |
| 02/05/2002 | US6344776 Transistor base current error correction scheme for low overhead voltage applications |
| 02/05/2002 | US6344775 Semiconductor device |
| 02/05/2002 | US6344774 Integrated power amplifier which allows parallel connections |
| 02/05/2002 | US6344769 Precision differential switched current source |
| 02/05/2002 | US6344767 Switched-opamp technique for low-voltage switched capacitor circuits |
| 02/05/2002 | US6344762 Bias circuit for a low voltage differential circuit |
| 02/05/2002 | US6344651 Differential current mode output circuit for electro-optical sensor arrays |
| 02/04/2002 | CA2352369A1 Power amplifier sharing in a wireless communication system with transmit diversity |
| 01/31/2002 | WO2002009276A1 Rf signal amplifier unit, rf signal transmission device and rf signal transmitting terminal-antenna |
| 01/31/2002 | WO2002009275A1 Low noise and low offset bipolar input amplifiers |
| 01/31/2002 | WO2002009274A1 Low noise, low distortion, complementary if amplifier |
| 01/31/2002 | WO2002009272A2 High-frequency amplifier circuit with independent control of quiescent current and bias impedance |
| 01/31/2002 | US20020011900 Fully differential, switched capacitor, operational amplifier circuit with common-mode controlled output |
| 01/31/2002 | US20020011899 Audio amplifier power and temperature controller having network detecting and associated methods |
| 01/31/2002 | US20020011898 Amplification circuit for electric charge type sensor |
| 01/31/2002 | US20020011897 Method and apparatus for effecting programmable gain amplification |
| 01/31/2002 | US20020011890 Semiconductor integrated circuit |
| 01/31/2002 | US20020011880 Demodulation filter |