| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 05/10/2002 | WO2002037672A2 Multiple-voltage supply power amplifier with dynamic headroom control |
| 05/10/2002 | WO2002037669A1 Amplifier linearisation |
| 05/10/2002 | WO2002037668A1 Method and apparatus for controlling an amplifier |
| 05/10/2002 | WO2002037520A1 Traveling wave tube amplifier with reduced sever related applications |
| 05/10/2002 | WO2002017402A3 Wideband differential amplifier and summing circuit including such wideband differential amplifier |
| 05/10/2002 | WO2002015393A3 Digital class-d audio amplifier |
| 05/10/2002 | WO2001080423A3 Method and apparatus for dynamic sound optimization |
| 05/09/2002 | US20020056137 Twisted pair communications line system |
| 05/09/2002 | US20020055376 Power amplifier |
| 05/09/2002 | US20020054445 High-speed low-capacitive load common mode feedback |
| 05/09/2002 | US20020054245 Adapter circuit for audio and video signals |
| 05/09/2002 | US20020053949 Low power supply CMOS differential amplifier topology |
| 05/09/2002 | US20020053948 Low voltage rail-to-rail CMOS input stage |
| 05/09/2002 | US20020053947 Impedance matching low noise amplifier having a bypass switch |
| 05/09/2002 | US20020053945 Switching power amplifier |
| 05/09/2002 | US20020053935 Nonlinearity compensation circuit and method, control circuit and method for nonlinearity compensation circuit and recording and/ or playback apparatus employing the same |
| 05/09/2002 | US20020053928 Precision, low-power transimpedance circuit with differential current sense inputs and single ended voltage output |
| 05/09/2002 | US20020053729 Semiconductor device |
| 05/08/2002 | EP1204202A2 Temperature compensation circuit and a variable gain amplification circuit |
| 05/08/2002 | EP1142136A4 Control of gain and power consumption in a power amplifier |
| 05/08/2002 | EP0970561A4 Rail-to-rail operational amplifier |
| 05/08/2002 | EP0906659A4 Oversampled, noise-shaping, mixed-signal processor |
| 05/08/2002 | EP0795236B1 Analog to digital converter using complementary differential emitter pairs |
| 05/08/2002 | CN1084548C High frequency amplifier with guard circuit and radio transmitting apparatus including the same |
| 05/07/2002 | US6385439 Linear RF power amplifier with optically activated switches |
| 05/07/2002 | US6384689 Preamplifier for optical receivers |
| 05/07/2002 | US6384688 High-frequency power amplifier module |
| 05/07/2002 | US6384687 Saturation limit circuit for junction isolated PNP transistor and method |
| 05/07/2002 | US6384685 Complementary metal oxide semiconductor class AB amplifier |
| 05/07/2002 | US6384684 Amplifier |
| 05/07/2002 | US6384683 High performance intermediate stage circuit for a rail-to-rail input/output CMOS operational amplifier |
| 05/07/2002 | US6384682 Differential amplifier circuit and pull up-type differential driver |
| 05/07/2002 | US6384680 RF amplifier with plural combiners |
| 05/07/2002 | US6384679 Rail-to-rail amplifier with reduced GM and compensating cap |
| 05/07/2002 | US6384678 Silent start |
| 05/07/2002 | US6384673 Current mirror arrangement |
| 05/07/2002 | US6384540 System for high power RF plasma processing |
| 05/07/2002 | US6384413 Focal plane infrared readout circuit |
| 05/07/2002 | US6384399 Optical receiving circuit comprising a reflection coefficient setting circuit |
| 05/03/2002 | CA2359996A1 Rf amplifier with feedback based linearization |
| 05/02/2002 | WO2002035756A2 Active continuous-time filter with increased dynamic range in the presence of blocker signals |
| 05/02/2002 | WO2001071905A3 Amplifier circuit and method for providing negative feedback thereto |
| 05/02/2002 | US20020052665 Utilizing vacuum tubes in computer audio circuitry |
| 05/02/2002 | US20020051390 Semiconductor device |
| 05/02/2002 | US20020050862 Operational amplifier |
| 05/02/2002 | US20020050861 Variable transconductance variable gain amplifier utilizing a degenerated differential pair |
| 05/02/2002 | US20020050860 MOS linear transconductance amplifier |
| 05/02/2002 | US20020050859 Boosted high gain, very wide common mode range, self-biased operational amplifier |
| 05/02/2002 | US20020050858 Preamplifier circuit |
| 05/02/2002 | US20020050855 Semiconductor device |
| 05/02/2002 | US20020050851 Method and apparatus for biasing radio frequency power transistors |
| 05/02/2002 | US20020050845 High speed variable output power driver |
| 05/02/2002 | US20020050843 Current sense ampifier circuits contanining latches for improving stability and ampilification in semiconductor devices |
| 05/02/2002 | US20020050558 Multichannel receiver circuit for parallel reception |
| 05/02/2002 | EP1202467A1 Signal transmitter with impulse control of amplification |
| 05/02/2002 | EP1202447A1 A method for reducing noise generated in a RF power amplifier |
| 05/02/2002 | EP1202446A2 Power amplifier |
| 05/02/2002 | EP1201028A1 Transistor amplifier having reduced parasitic oscillations |
| 05/02/2002 | EP1201027A1 Parallel amplifier architecture using digital phase control techniques |
| 05/02/2002 | EP1201026A1 Break-before-make distortion compensation for a digital amplifier |
| 05/02/2002 | EP1201025A1 Driving circuits for switch mode rf power amplifiers |
| 05/02/2002 | EP1201024A1 High-efficiency modulating rf amplifier |
| 05/02/2002 | EP1201023A1 Dc offset calibration for a digital switching amplifier |
| 05/02/2002 | DE10051340A1 Arrangement for distortion-free amplification of electrical voltages with full electrical isolation forms output voltage by superimposing input voltages with adjustable output factor |
| 05/02/2002 | DE10050740A1 Negative feedback amplifier with changeable amplification by changeable resistance ratio |
| 05/01/2002 | CN1347589A Class D digital amplifier |
| 05/01/2002 | CN1347195A Distortion compensation device and method |
| 05/01/2002 | CN1084085C Operational amplification circuit |
| 05/01/2002 | CN1084084C High-efficient class-A open loop transistor constant current amplifier |
| 04/30/2002 | US6381212 Power sharing amplifier system for amplifying multiple input signals with shared power amplifiers |
| 04/30/2002 | US6381154 PWM nonlinear controller with a single cycle response and a non resettable integrator |
| 04/30/2002 | US6380808 Push-pull amplifier circuit with idling current control |
| 04/30/2002 | US6380807 Dynamic bridge system with common mode range extension |
| 04/30/2002 | US6380806 Differential telescopic operational amplifier having switched capacitor common mode feedback circuit portion |
| 04/30/2002 | US6380805 Operational amplifier with multiple complementary P-channel and N-channel input pairs to reduce transconductance variation |
| 04/30/2002 | US6380804 Method and apparatus for switching stages of a multistage amplifier quickly between operational modes |
| 04/30/2002 | US6380803 Linear amplifier having discrete resonant circuit elements and providing near-constant efficiency across a wide range of output power |
| 04/30/2002 | US6380802 Transmitter using input modulation for envelope restoration scheme for linear high-efficiency power amplification |
| 04/30/2002 | US6380801 Operational amplifier |
| 04/30/2002 | US6380789 Switched input circuit structure |
| 04/30/2002 | US6380771 Method of driving power circuit and circuit therefor |
| 04/30/2002 | US6380721 Voltage regulator circuit |
| 04/30/2002 | CA2362104A1 High efficiency power amplifier systems and methods |
| 04/30/2002 | CA2091891C Mesfet power amplifier and its power supply, particularly for amplifying microwave signals in a satellite |
| 04/25/2002 | WO2002033920A1 Dc-offset compensation |
| 04/25/2002 | WO2002033860A1 Electric field intensity detecting circuit and limiter amplifier |
| 04/25/2002 | WO2002033822A2 Circuit arrangement |
| 04/25/2002 | WO2002033819A2 Amplifier having stacked current-driven current drivers |
| 04/25/2002 | WO2001073942A3 Concurrent multi-band low noise amplifier architecture |
| 04/25/2002 | US20020048110 Amplifier |
| 04/25/2002 | US20020047840 Driving circuit |
| 04/25/2002 | US20020047754 Traveling-wave amplifier having a II -type output transmission line structure |
| 04/25/2002 | US20020047747 Noise and input impedance matched amplifier |
| 04/25/2002 | US20020047734 Driving circuit for a voice coil motor and driving method thereof |
| 04/25/2002 | US20020047733 Transistor circuit |
| 04/25/2002 | DE10145203A1 Circuit for amplifying transimpedance includes a buffer circuit to input signal currents, an equivalence resistance circuit and an amplifying circuit. |
| 04/24/2002 | EP1199799A2 Signal compensator circuit and demodulator circuit |
| 04/24/2002 | EP1198880A1 Arrangement comprising a first and a second amplifier whereby a maximum of one of said amplifiers amplifies |
| 04/24/2002 | EP1198798A1 Track and hold amplifier with controllable feedback between hold capacitor and input buffer |
| 04/24/2002 | EP0879500A4 Low-voltage differential amplifier |