Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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08/06/1996 | US5543752 Microwave amplifier circuit having reduced harmonic distortion |
08/06/1996 | US5543751 Power combiner for use in a radio frequency system and a method of constructing a power combiner |
08/06/1996 | US5543745 Voltage controlled current source and bias generation circuit using such current source |
08/06/1996 | CA2077155C Apparatus for controlling consumption power for gaas fet |
07/30/1996 | US5542096 Method for a transmitter to compensate for varying loading without an isolator |
07/30/1996 | US5541555 High performance transconductance operational amplifier of the CMOS integrated type |
07/30/1996 | US5541554 Multi-mode power amplifier |
07/30/1996 | US5541553 Amplifier with a function for switching on and off the output signal |
07/25/1996 | WO1996011528A3 Amplifier arrangement |
07/24/1996 | EP0722626A1 Signal conditioning apparatus and method exhibiting accurate input impedance and gain characteristics over common mode range and operational environments |
07/24/1996 | EP0722625A1 Feedforward amplifier for minimizing distortion |
07/24/1996 | CN1127443A Grounded-base transistor amplifier |
07/17/1996 | EP0722216A2 Split-path linear isolation circuit apparatus and method |
07/17/1996 | EP0605570B1 Active biasing control for class-ab cmos operational amplifiers |
07/17/1996 | EP0307465B1 Semiconductor emulation of tube amplifiers |
07/17/1996 | CN1126905A Power amplifier stage of the voltage follower type |
07/16/1996 | US5537081 No turn-on pop noise amplifier |
07/16/1996 | US5537080 Gain stability arrangement for HV MOSFET power amplifier |
07/16/1996 | US5537079 Integrated-circuit (IC) amplifier with plural complementary stages |
07/16/1996 | US5537078 Operational amplifier with JFET inputs having low input bias current and methods for using same |
07/11/1996 | WO1996021271A1 Open-loop, differential amplifier with accurate and stable gain |
07/09/1996 | US5535438 Phase linear class E amplifier for a satellite communication terminal which communicates with a low earth orbiting satellite |
07/09/1996 | US5535273 Circuitry for superimposing small, low energy signals and large, essentially higher energy signals |
07/09/1996 | US5535082 Turn-on control circuit for electric devices |
07/09/1996 | US5534820 Compensating for non-linear effects in signal processing with active devices |
07/09/1996 | US5534816 Programmable transducer amplifier circuit |
07/09/1996 | US5534813 Anti-logarithmic converter with temperature compensation |
07/09/1996 | US5534810 Power stage bias circuit with improved efficiency and stability |
07/09/1996 | CA2056701C Fet amplifier with gate voltage control |
07/04/1996 | DE19534065A1 Voltage amplifier stage |
07/03/1996 | EP0720354A2 Power stage bias circuit with improved efficiency and stability |
07/03/1996 | EP0720296A2 Buffer circuit and bias circuit |
07/03/1996 | EP0720284A1 Feedforward amplifier |
07/02/1996 | US5532655 Method and apparatus for AC/DC signal multiplexing |
07/02/1996 | US5532650 High-frequency amplifier |
07/02/1996 | US5532649 Speaker resistance sensing and power limit setting circuit |
07/02/1996 | US5532648 Radio frequency amplifiers with compensation signal to accommodate changes in the conduction point due to temperature changes |
07/02/1996 | US5532646 High frequency power amplifier |
07/02/1996 | US5532645 Circuit for controlling the rise of the output voltage of an amplifier at start up |
07/02/1996 | US5532644 Variable gain amplifying circuit |
07/02/1996 | US5532642 Feedforward-type distortion compensation circuit |
07/02/1996 | US5532637 Linear low-noise mixer |
07/02/1996 | US5532578 Reference voltage generator utilizing CMOS transistor |
07/02/1996 | US5532558 Protection circuit for dynamic focus amplifier |
07/02/1996 | CA2069990C Rf power amplifier |
06/27/1996 | WO1996019865A2 An amplifying circuit |
06/27/1996 | WO1996019864A1 Receiver circuit |
06/26/1996 | EP0718968A1 Amplifier having common mode large swing and constant transconductance |
06/26/1996 | EP0718967A2 Method and apparatus for nonlinear compensation |
06/26/1996 | EP0718966A1 Amplifier circuit |
06/26/1996 | EP0718965A1 Class A high frequency amplifier and receiver with at least such an amplifier |
06/26/1996 | CN1125497A A method for a transmitter to compensate for varying loading without an isolator |
06/25/1996 | US5530444 Differential amplifiers which can form a residue amplifier in sub-ranging A/D converters |
06/20/1996 | WO1996019040A1 Low voltage linear output buffer operational amplifier |
06/19/1996 | EP0717504A2 Radio transmitters and methods of operation |
06/19/1996 | EP0717492A1 RF power amplifier with increased efficiency at low power |
06/19/1996 | EP0717334A2 Circuit for providing a compensated bias voltage |
06/19/1996 | EP0716783A1 Amplifier stage with a db-linear output voltage |
06/19/1996 | CN2229731Y Apparatus for cancelling parasitic oscillation and lowering harmonic impedance |
06/18/1996 | US5528532 Distortion circuits for improving distortion effects to audio data |
06/18/1996 | US5528509 Method of designing a high-frequency circuit |
06/18/1996 | US5528196 Linear RF amplifier having reduced intermodulation distortion |
06/18/1996 | US5528189 Noise performance of amplifiers |
06/12/1996 | EP0716526A2 Method of producing modulating waveforms with constant envelope |
06/12/1996 | EP0716505A1 Amplifier circuit arrangements |
06/12/1996 | EP0716504A1 Amplifier circuit arrangements |
06/12/1996 | EP0716503A1 Amplifier with reduced distortion |
06/12/1996 | EP0716502A1 Integrated-circuit (IC) amplifier with plural complementary stages |
06/12/1996 | EP0715781A1 Regenerative amplifier circuit |
06/12/1996 | EP0198009B1 Current source with adjustable temperature coefficient |
06/12/1996 | CN1124423A Power amplifier and radio transmitter |
06/11/1996 | US5525934 Output circuit with short circuit protection for a CMOS comparator |
06/11/1996 | US5525930 Frequency compensation circuit for stabilizing a differential amplifier with cross-coupled transistors |
06/11/1996 | US5525929 Transimpedance amplifier circuit with feedback and load resistor variable circuits |
06/07/1996 | CA2164465A1 Converter for converting a modulating signal with variable envelope to two modulating signals without variable envelope, transmitter using the converter and method for transmitting a modulated wave with variable envelope |
06/05/1996 | EP0715404A1 Impedance matching circuit |
06/04/1996 | USRE35261 Differential input amplifier stage with frequency compensation |
06/04/1996 | US5524286 Baseband predistortion system for the adaptive linearization of power amplifiers |
06/04/1996 | US5524285 Radio transmitter with power amplifier and linearization |
06/04/1996 | US5524171 Device for the processing and pre-correction of an audio signal before it is amplified in an amplification system of a transmitter with amplitude modulation |
06/04/1996 | US5524074 Digital signal processor for adding harmonic content to digital audio signals |
06/04/1996 | US5524055 Solid state circuit for emulating tube compression effect |
06/04/1996 | US5523717 Operational transconductance amplifier and Bi-MOS multiplier |
06/04/1996 | US5523716 Microwave predistortion linearizer |
06/04/1996 | US5523712 Resistor array circuit device and variable gain device utilizing same |
06/04/1996 | CA2074126C High-frequency power amplifier |
05/31/1996 | CA2164056A1 Impedance matching circuit |
05/30/1996 | WO1996016476A1 High speed overvoltage detection and protection circuit |
05/30/1996 | DE4441021A1 Intermodulation distortion reduction circuit in broad band nonlinear network or component |
05/29/1996 | EP0714165A1 Amplifier with multiple switched stages |
05/29/1996 | EP0714164A2 Modular linear feed-forward amplifier |
05/29/1996 | EP0714055A1 Proportional to absolute temperature current source |
05/28/1996 | US5521554 High-frequency band amplifier system |
05/28/1996 | US5521549 Stabilization of closed-loop power controllers |
05/28/1996 | US5521489 Overheat detecting circuit |
05/28/1996 | CA2083954C Feed forward amplifier network with frequency swept pilot tone |
05/23/1996 | WO1996015586A1 Wafer-stage temperature compensation for ic components |
05/23/1996 | DE19505269C1 Transistor working current stabilisation circuit |
05/22/1996 | EP0713289A1 Amplifier with multiple switched stages |
05/21/1996 | US5519886 Method and apparatus for controlling device temperature during transmissions |