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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02/06/1997 | CA2200077A1 Power combiner for use in a radio frenquency system and a method of constructing a power combiner |
02/05/1997 | EP0756781A1 Negative-resistance-compensated microwave buffer |
02/05/1997 | CN1142137A Amplifying circuit with function of reducing load reactance influence |
02/04/1997 | US5600575 Drive protection monitor for motor and amplifier |
02/04/1997 | US5600472 Distortion generating circuit |
02/04/1997 | US5600278 Programmable instrumentation amplifier |
02/04/1997 | US5600275 Low-voltage CMOS comparator with offset cancellation |
02/04/1997 | US5600064 Electronics for coriolis force and other sensors |
01/29/1997 | EP0756431A2 Power shared linear amplifier network |
01/29/1997 | EP0756380A1 Pulse width modulation & protection circuit |
01/29/1997 | CN1141536A Grounded inductance circuit using gyrator circuit |
01/28/1997 | US5598436 Digital transmission system with predistortion |
01/28/1997 | US5598127 Procedure and circuit for adaptive compensation of the gain distortions of a microwave amplifier with linearizer |
01/28/1997 | US5598117 MOS differential voltage-to-current converter circuit with improved linearity |
01/23/1997 | WO1997002655A1 Method and apparatus for amplifying an electrical signal |
01/23/1997 | WO1997002653A1 Output stage for buffering signals |
01/22/1997 | CN1140931A Method and apparatus for amplifying signal |
01/21/1997 | US5596646 Audio tape saturation simulator |
01/15/1997 | EP0753936A1 Audio signal transmission circuit |
01/15/1997 | EP0753935A1 Signal amplifier |
01/14/1997 | US5594387 Amplifier circuit having nagative feedback loop for self-bias |
01/14/1997 | US5594385 Ultra-linear feedforward amplifier with adaptive control and method for adaptive control |
01/14/1997 | US5594375 Electrical power amplifier for continuous cardiac output monitoring |
01/09/1997 | WO1996031947A3 Offset-compensated linear rf detector |
01/07/1997 | US5592124 Integrated photodiode/transimpedance amplifier |
01/07/1997 | US5592123 Frequency stability bootstrapped current mirror |
01/02/1997 | EP0751614A1 Cuber based predistortion circuit and mobile station using the same |
01/02/1997 | DE19524037A1 HF power amplifier for TV-transmitter |
01/01/1997 | CN1139320A Transmitter having temperature-compensated detector |
01/01/1997 | CN1139213A Split-path linear isolation circuit apparatus and method |
12/31/1996 | US5589881 Enhanced performance CCD output amplifier |
12/31/1996 | US5589797 Low distortion amplifier |
12/31/1996 | US5589796 Method and apparatus for increasing amplifier efficiency |
12/31/1996 | US5589785 Low-voltage CMOS comparator |
12/31/1996 | US5589762 Adaptive voltage regulator |
12/27/1996 | WO1996042135A1 A low-voltage rail-to-rail operational amplifier |
12/27/1996 | WO1996031946A3 A linearizer for linearizing a non-linear component controlled by control voltage |
12/27/1996 | EP0750391A2 Wide-band amplifier |
12/27/1996 | EP0642681B1 Method and apparatus for controlling a current generator |
12/24/1996 | US5587689 Voltage controlled amplifier with a negative resistance circuit for reducing non-linearity distortion |
12/19/1996 | WO1996031945A3 An amplifier stage having a switchable gain and reduced distortion |
12/18/1996 | EP0564490A4 Improved switching amplifier |
12/17/1996 | US5585762 Arrangement for controlling the operation of a high-frequency power amplifier |
12/17/1996 | CA2079017C Differential amplifier arrangement |
12/17/1996 | CA2069476C An apparatus and method for varying a signal in a transmitter of a transceiver |
12/11/1996 | EP0748040A1 Gain stability arrangement for HV MOSFET power amplifier |
12/11/1996 | EP0746902A1 Predistorter for high frequency optical communications devices |
12/10/1996 | US5583465 Method and apparatus for improving the speed and accuracy of a circuit utilizing a feedback amplifier configuration |
12/05/1996 | WO1996038906A1 Minimum power-consumption amplifier |
12/04/1996 | EP0746096A1 Grounded inductance circuit using gyrator circuit |
12/04/1996 | EP0746094A1 Offset error compensation system for an operational amplifier |
12/04/1996 | EP0746093A1 Operational amplifier |
12/04/1996 | EP0745923A2 Voltage regulator with load pole stabilization |
12/04/1996 | EP0745285A1 An amplifying circuit |
12/04/1996 | EP0581799B1 Adaptive phase control for a power amplifier predistorter |
12/04/1996 | CN1137198A High-efficient configurable power amplifier for use in portable unit |
11/28/1996 | WO1996037951A1 Switched capacitor offset suppression |
11/28/1996 | WO1996037949A1 A cartesian loop transmitter |
11/28/1996 | WO1996037948A1 Methods and apparatus for modulating, demodulating and amplifying |
11/28/1996 | CA2222091A1 Methods and apparatus for modulating, demodulating and amplifying |
11/27/1996 | EP0744725A1 Input circuit for the acquisition, evaluation or processing of a sensor signal |
11/27/1996 | EP0744096A1 Low noise wide band amplifier |
11/27/1996 | CN1136751A Distoriton compensating circuit |
11/26/1996 | US5579342 Pre-compensated frequency modulation (PFM) |
11/26/1996 | US5578967 Circuit compensating for capacitance at inverting input of current feedback amplifier |
11/26/1996 | US5578963 Integrated amplifier with flat gain for high and low impedance loads |
11/26/1996 | US5578962 Instrumentation amplifier for sensor signal conditioning using low-cost, high-accuracy analog circuitry |
11/26/1996 | US5578956 Circuit for limiting the maximum current value supplied to a load by a power MOS at power-up |
11/26/1996 | US5578916 Dual voltage voltage regulator with foldback current limiting |
11/21/1996 | WO1996037046A1 Fast comparator |
11/21/1996 | DE19517608A1 Circuit for improved control of broadband amplifiers |
11/20/1996 | CN1136370A Switch-mode power supply for a bridged linear amplifier |
11/19/1996 | US5577129 Amplifier circuit for electret condenser microphone |
11/19/1996 | US5576920 Electrostatic destruction preventing circuit and receiving apparatus having the same |
11/19/1996 | US5576723 VGA signal converter for converting VGA color signals to VGA monochrome signals |
11/19/1996 | US5576663 Wideband gain stable amplifier |
11/19/1996 | US5576662 For amplifying a received signal |
11/19/1996 | US5576660 Broadband predistortion linearizer with automatic temperature compensation for microwave amplifiers |
11/19/1996 | US5576659 Method and apparatus for signal processing using reference signals |
11/14/1996 | WO1996036106A2 Feedback amplifier with improved speed and accuracy |
11/14/1996 | WO1996036105A1 High efficiency multiple power level amplifier circuit |
11/14/1996 | DE19619247A1 Air flow meter of thermal resistance type for measuring air flow rate |
11/13/1996 | EP0742590A2 Method and circuit for preventing forward bias of a parasitic diode in an integrated circuit |
11/13/1996 | EP0741881A1 Integrated circuit |
11/12/1996 | US5574992 Method and apparatus for reducing off-channel interference produced by a linear transmitter |
11/12/1996 | US5574967 Waste energy control and management in power amplifiers |
11/12/1996 | US5574792 Volume and tone control circuit for acoustic reproduction sets |
11/12/1996 | US5574678 Continuous time programmable analog block architecture |
11/12/1996 | US5574400 Feedforward amplifier with reduced distortion in wide band |
11/07/1996 | DE19617832A1 Verfahren und Schaltung zur Ansteuerung von Leistungstransistoren in einer Halbbrücken-Konfiguration Method and circuit for driving power transistors in a half bridge configuration |
11/06/1996 | EP0740860A1 High speed overvoltage detection and protection circuit |
11/05/1996 | US5572416 Isolated input current sense means for high power factor rectifier |
11/05/1996 | US5572165 Amplifier arrangements |
10/31/1996 | DE19616803A1 Nonlinear distortion compensation unit |
10/31/1996 | DE19514450A1 Power amplifier for LF signal |
10/30/1996 | CN1134624A Differential amplifying apparatus |
10/29/1996 | US5570427 Muting control circuit |
10/29/1996 | US5570424 Sound effector capable of imparting plural sound effects like distortion and other effects |
10/29/1996 | US5570065 Active bias for radio frequency power amplifier |
10/29/1996 | US5570063 RF power amplifier with signal predistortion for improved linearity |