| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 01/07/2003 | US6504429 Wide dynamic range transimpedance amplifier |
| 01/07/2003 | US6504427 Switching amplifier having digital correction and method therefor |
| 01/07/2003 | US6504426 Methods and systems for power amplifying of signals |
| 01/07/2003 | US6504404 Semiconductor integrated circuit |
| 01/07/2003 | US6504403 Low voltage differential signal (LVDS) input circuit |
| 01/07/2003 | US6504348 Remote sensing by high-order filtering |
| 01/07/2003 | US6504292 Field emitting device comprising metallized nanostructures and method for making the same |
| 01/07/2003 | US6504140 Optical interconnection receiving module |
| 01/03/2003 | WO2003001663A1 Thermally distributed darlington amplifier |
| 01/03/2003 | WO2003001661A1 Self-biased cascode rf power amplifier in sub-micron |
| 01/03/2003 | WO2003001660A1 Linear amplifier using non-linear cmos capacitors |
| 01/03/2003 | WO2002078179A3 Digital signal processor enhanced pulse width modulation amplifier |
| 01/03/2003 | WO2002047256A3 Harmonic matching network for a saturated amplifier |
| 01/02/2003 | US20030005018 Analog multiplication circuit |
| 01/02/2003 | US20030003877 Method and an arrrangement relating to telecommunications systems |
| 01/02/2003 | US20030001768 Offset compensated comparing amplifier |
| 01/02/2003 | US20030001762 A/D conversion using a variable offset comparator |
| 01/02/2003 | US20030001678 Semiconductor amplifier circuit |
| 01/02/2003 | US20030001677 High-frequency amplifier and high-frequency mixer |
| 01/02/2003 | US20030001676 High frequency power amplifier circuit |
| 01/02/2003 | US20030001674 Low-voltage, broadband operational amplifier |
| 01/02/2003 | US20030001673 Linear transconductance amplifier |
| 01/02/2003 | US20030001669 Balanced distortion reduction circuit |
| 01/02/2003 | US20030001668 Switchable RF power divider/combiner |
| 01/02/2003 | US20030001667 Voltage margin testing of a transmission line analog signal using a variable offset comparator in a data receiver circuit |
| 01/02/2003 | US20030001666 Differential signal output apparatus, semiconductor integrated circuit apparatus having the differential signal output apparatus, differential signal transmission system, signal detection apparatus, signal detection method, signal transmission system and computer-readable program |
| 01/02/2003 | US20030001632 Voltage buffer |
| 01/02/2003 | US20030001075 Analog pre-processor |
| 01/02/2003 | EP1271870A2 Switching mode power amplifier using PWM and PPM for band pass signals |
| 01/02/2003 | EP1271770A2 Analog base band unit for RF receiver and method for using the same |
| 01/02/2003 | EP1271767A1 Polarisation device for a broadband electronic circuit and amplifier with such a device |
| 01/02/2003 | EP1271766A2 A digital power amplifier |
| 01/02/2003 | EP1271765A2 Application of the doherty amplifier as a predistortion circuit for linearizing microwave amplifiers |
| 01/02/2003 | EP1271549A1 Eeprom circuit, voltage reference circuit and method for providing a low temperature-coefficient voltage reference |
| 01/02/2003 | EP1269707A1 Device for producing a phase and amplitude modulated radio frequency signal |
| 01/02/2003 | EP1269655A1 Dynamic bias for rf power amplifiers |
| 01/02/2003 | EP1269630A2 Current-controlled cmos circuits with inductive broadbanding |
| 01/02/2003 | EP1269625A1 Electronic output module |
| 01/02/2003 | EP1269624A2 System and method of producing direct audio from a power supply |
| 01/02/2003 | EP1269623A1 High frequency switch-mode power amplifier |
| 01/02/2003 | EP1127479B1 An electrical component and an electrical circuit module having connected ground planes |
| 01/01/2003 | CN2529455Y Microwave solid-state power amplifier device |
| 01/01/2003 | CN1389016A High-frequency amplifier, feed-forward amplifier and distortion compensation amplifier |
| 01/01/2003 | CN1388924A 电流镜像电路 A current mirror circuit |
| 01/01/2003 | CN1388724A 高频功率放大器 Frequency power amplifier |
| 01/01/2003 | CN1388651A Radio power synthesizer |
| 01/01/2003 | CN1388644A Variable-gain amplifier |
| 01/01/2003 | CN1388643A Signal amplifing method, signal amplifier and relative apparatus |
| 01/01/2003 | CN1388642A Curent-type sychronous super-class A bias circuit |
| 01/01/2003 | CN1097876C IF amplifiers/amplitude limiter |
| 12/31/2002 | US6501335 Semiconductor circuit with a stabilized gain slope |
| 12/31/2002 | US6501334 Actively biased class AB output stage with low quiescent power, high output current drive and wide output voltage swing |
| 12/31/2002 | US6501333 Differential amplifier circuit |
| 12/31/2002 | US6501332 Apparatus and method for electrical signal amplification |
| 12/31/2002 | US6501331 Multi-band amplifier |
| 12/31/2002 | US6501317 High speed, low-power CMOS circuit with constant output swing and variable time delay for a voltage controlled oscillator |
| 12/31/2002 | US6501255 Differential current source with active common mode reduction |
| 12/31/2002 | US6501252 Power supply circuit |
| 12/31/2002 | US6501159 Power transistor module, power amplifier and method in the fabrication thereof |
| 12/31/2002 | CA2289400C High speed differential optoelectronic receiver |
| 12/27/2002 | WO2002103912A1 Linearized offset qpsk modulation utilizing a sigma-delta based frequency modulator |
| 12/27/2002 | WO2002103898A1 Method and apparatus for voltage clamping in feedback amplifiers using resistors |
| 12/27/2002 | WO2002103893A1 A method of operating a current-controlled solid state power amplifying device |
| 12/27/2002 | WO2002084861A3 Multi-band amplifier having multi-tap rf choke |
| 12/27/2002 | WO2002075924A3 Circuit and method for controlling a dynamic, bi-directional high voltage analog switch and ultrasound examination apparatus equipped with such a circuit |
| 12/27/2002 | WO2001058010A3 Devices and methods for calibrating amplifier stages and for compensating for errors in amplifier stages of series-connected components |
| 12/26/2002 | US20020196086 Self-biased cascode rf power amplifier in sub-micron technical field |
| 12/26/2002 | US20020196085 High frequency module |
| 12/26/2002 | US20020196082 DC feedback control circuit |
| 12/26/2002 | US20020196080 Gain variable amplifier |
| 12/26/2002 | US20020196079 Differential amplifier circuit |
| 12/26/2002 | US20020196078 Low pass filter for output of D-class amplifier |
| 12/26/2002 | US20020196077 System and method for noise and spurious suppression in power amplifier systems |
| 12/26/2002 | US20020196054 Voltage comparing circuit |
| 12/25/2002 | CN2528179Y Heat dissipating machine |
| 12/25/2002 | CN1387316A Disadjust control of operational amplifier |
| 12/25/2002 | CN1387315A Operational amplifier device comprising static current control circuit |
| 12/24/2002 | US6498535 High dynamic range low noise amplifier |
| 12/24/2002 | US6498533 Bootstrapped dual-gate class E amplifier circuit |
| 12/24/2002 | US6498532 System and method for linearizing vacuum electronic amplification |
| 12/24/2002 | US6498531 Digital class-D audio amplifier |
| 12/24/2002 | US6498530 Auto-zeroed ping-pong amplifier with low transient switching |
| 12/19/2002 | WO2002101944A2 Power amplifier control |
| 12/19/2002 | WO2002101918A1 Multi-level power amplifier |
| 12/19/2002 | WO2002101917A2 Low-power, differential optical receiver in silicon on insulator |
| 12/19/2002 | WO2002087076A3 Class d amplifier with passive rc network |
| 12/19/2002 | WO2002080353A3 Capacitive power driver circuit |
| 12/19/2002 | US20020194419 Simulated circuit layout for low voltage, low power and high performance type II current conveyor |
| 12/19/2002 | US20020191721 Data transmission system |
| 12/19/2002 | US20020191498 Inductance device driving system, information storage apparatus, and inductance device driving method |
| 12/19/2002 | US20020190799 Amplification circuit and oscillation circuit having the amplification circuit |
| 12/19/2002 | US20020190796 Variable gain low-noise amplifier for a wireless terminal |
| 12/19/2002 | US20020190794 Output stage amplifier with compensation circuitry |
| 12/19/2002 | US20020190793 Operational transconductance amplifier for an output buffer |
| 12/19/2002 | US20020190792 Digital power amplifier |
| 12/19/2002 | US20020190791 High frequency amplifier for amplifying high frequency signals |
| 12/19/2002 | US20020190790 Multi-level power amplifier |
| 12/19/2002 | US20020190789 Switching amplifier and signal amplifying method |
| 12/19/2002 | US20020190784 Amplifier |
| 12/19/2002 | US20020190777 Current pulse receiving circuit |