H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements

Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272)
12/1994
12/21/1994	EP0630104A2 Microwave Doherty amplifier
12/21/1994	EP0630101A2 Improvements in or relating to amplifiers
12/21/1994	EP0630100A2 Amplifier arrangement with multipath Miller zero cancellation
12/20/1994	US5374966 Low noise impedance-matched video amplifier
12/20/1994	US5374896 Distortion compensating circuit of high-frequency power amplifier
12/14/1994	EP0629043A1 High frequency amplifier
12/13/1994	US5373252 Circuit for preventing saturation of a transistor
12/13/1994	US5373250 MESFET power amplifier and its power supply unit, in particular for microwave signal amplification on board a satellite
12/13/1994	US5373228 Integrated circuit having a cascode current mirror
12/08/1994	WO1994028624A1 Low differential output impedance method and apparatus for buffering a voltage
12/07/1994	EP0627118A1 Offset-compensated sample and hold arrangement and method for its operation.
12/06/1994	US5371479 Pre-amplifier with multi-stage feedback
11/1994
11/30/1994	EP0626111A1 Amplifier circuit
11/30/1994	EP0362217B1 Output amplifier
11/29/1994	US5369309 Analog-to-digital converter and method of fabrication
11/23/1994	EP0625822A2 Semiconductor integrated circuit
11/15/1994	US5365201 Power supply interruption circuit for an audio power amplifier
11/15/1994	US5365199 Amplifier with feedback having high power supply rejection
11/15/1994	US5365194 Power operational amplifier having oscillation limiter and method therefor
11/15/1994	US5365193 Circuit for neutralizing thermal drift in a transconductance stage
11/15/1994	US5365190 Feed-forward digital phase and amplitude correction system
11/15/1994	US5365189 Drift free low noise composite amplifier and method of operation thereof
11/15/1994	US5365188 Self-configurable, dual bridge, power amplifier
11/15/1994	US5365187 Power amplifier utilizing the vector addition of two constant envelope carriers
11/10/1994	DE4320061C1 Amplifier output stage
11/09/1994	EP0623994A2 Method and apparatus for protecting power amplifiers from excessive operating power levels
11/09/1994	EP0623984A1 Coupling circuit for a measuring instrument
11/08/1994	US5363063 Amplifier with an output current limiter
11/08/1994	US5363062 Audio amplifier on-off control circuit
11/08/1994	US5363058 Amplifier having linear input-output characteristics and high efficiency
11/08/1994	US5363057 Control device for power amplifier
11/08/1994	US5363056 Circuit for linearization of amplified electronic signals
11/08/1994	CA2050846C Hybrid matrix amplifier systems, and methods for making thermally-balanced hybrid matrix amplifier systems
11/02/1994	EP0622895A1 Communication apparatus utilizing power amplifier
11/02/1994	CN1094548A Method and device for reducing distortion of power-amplifier speaker
11/01/1994	USRE34771 Voltage follower circuit having improved dynamic range
11/01/1994	US5361403 AM-FM transmitter power amplifier
11/01/1994	US5361039 Power amplifier device for a composite signal
11/01/1994	US5361007 Apparatus for controlling consumption power for GaAs FET
10/1994
10/27/1994	WO1994024780A1 Predistortion method and apparatus for laser linearization
10/27/1994	WO1994024760A1 Device for amplifying television signals with a predetermined variable operating class for preventing transmission errors
10/27/1994	CA2160886A1 Predistortion method and apparatus for laser linearization
10/27/1994	CA2160259A1 Television signal amplification device, with variable operating class which is predetermined in order to eliminate transmission errors
10/26/1994	EP0621684A1 A low-distortion feed-forward amplifier
10/26/1994	EP0621638A1 Integrated high voltage differential sensor using the inverse gain of high voltage transistors
10/26/1994	EP0433383B1 Sample-hold amplifier circuit
10/25/1994	US5359295 Power amplifier
10/19/1994	EP0620661A1 Distortion generating circuit
10/19/1994	EP0620646A1 Zero bias current low-side driver control circuit
10/19/1994	EP0620638A2 Integrated circuit amplifier arrangements
10/19/1994	EP0620637A1 Very high speed precision amplifier
10/19/1994	EP0620446A2 Device for testing an amplifier
10/19/1994	EP0619927A1 Power amplifier linearization in a tdma mobile radio system
10/19/1994	EP0619924A1 Radio frequency amplifiers
10/18/1994	US5357212 Microwave amplifier
10/18/1994	US5357210 Transconductance amplifier circuit
10/18/1994	US5357207 Sequential amplifier
10/18/1994	US5357155 Dual input signal summer circuit
10/18/1994	US5357148 Device for biasing an RF device operating in quasi-linear modes with voltage compensation
10/18/1994	US5357089 Circuit and method for extending the safe operating area of a BJT
10/15/1994	CA2120965A1 Distortion generating circuit
10/13/1994	WO1994023491A1 Power amplifier bias control circuit and method
10/11/1994	US5355103 Fast settling, wide dynamic range vector modulator
10/11/1994	US5355034 Drift suppressing circuit of gyroscope
10/10/1994	CA2120884A1 Zero bias current low-side driver control circuit
10/06/1994	DE4410498A1 Power amplifier
10/06/1994	DE4310384A1 Method for digital drift compensation in a charge amplifier circuit
10/05/1994	EP0618675A1 Electronic device with low power consumption
10/05/1994	EP0618673A2 A differential amplification circuit wherein a DC level at an output terminal is automatically adjusted and a power amplifier wherein a BTL drive circuit is driven by a half wave
10/04/1994	US5352986 Closed loop power controller
10/04/1994	US5352944 Apparatus and method for producing a temperature-independent current signal in an automatic gain control circuit
09/1994
09/29/1994	WO1994022215A1 High gain, low distortion, faster switching transistor
09/27/1994	US5351016 Adaptively self-correcting modulation system and method
09/27/1994	US5351011 Low noise, low distortion MOS amplifier circuit
09/27/1994	US5350998 Structure for temperature compensating the inverse saturation current of bipolar transistors
09/27/1994	CA1332189C Method and apparatus for low power offset correction of amplified sensor signals
09/21/1994	EP0616425A1 Audio amplifier arrangement
09/21/1994	EP0616423A1 Differential pair arrangement
09/21/1994	EP0616421A1 Feedback amplifier for regulating cascode gain enhancement
09/21/1994	EP0616420A1 Onboard l.f. amplifier, onboard receiver for telecontrol signals
09/20/1994	US5349301 Multiple amplifier system for a car
09/20/1994	US5349285 Power supply circuit
09/18/1994	CA2119280A1 Drift free low noise composite amplifier and method of operation thereof
09/15/1994	WO1994021043A1 Integratable dc blocing circuit
09/15/1994	WO1994021035A1 Modulation amplifier for radio transmitters
09/15/1994	WO1994021034A1 Electric power amplifier and process for its operation
09/15/1994	WO1994021033A1 Circuit for amplifying a weak direct voltage signal
09/13/1994	US5347529 Method for generating a distortion-free, frequency-modulated optical signal and apparatus for the implementation of such a method
09/13/1994	US5347389 Push-pull optical receiver with cascode amplifiers
09/13/1994	US5347231 Low noise charge sensitive preamplifier DC stabilized without a physical resistor
09/13/1994	US5347230 Amplification circuit
09/13/1994	US5347229 Power amplifier with harmonically trapped heterojunction bipolar transistor
09/13/1994	US5347197 Display device having a display tube including a cold cathode and a current mirror drive circuit for the cold cathode
09/07/1994	EP0613597A1 Shunt-expansive predistortion linearizers for optical analog transmitters
09/07/1994	CN1091871A Method and apparatus for signal processing using reference signals
09/06/1994	US5345192 Voltage controlled integrated circuit for biasing an RF device
09/06/1994	US5345191 Broad-band amplifier
09/06/1994	US5345112 Integrated circuit with programmable speed/power adjustment
09/01/1994	WO1994019870A1 Circuit and method for extending the safe operating area of a bjt
09/01/1994	CA2156923A1 Circuit and method for extending the safe operating area of a bjt

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