| 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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| 06/02/1992 | CA1302296C Muting circuit in a digital audio system |
| 05/27/1992 | EP0487176A2 Voltage to current conversion switching system |
| 05/27/1992 | EP0487133A2 High efficiency power audio amplifier comprising two amplifiers with a single feed |
| 05/27/1992 | EP0486986A1 Buffer circuit |
| 05/27/1992 | EP0486953A2 Second-order predistortion circuit for use with laser diode |
| 05/27/1992 | EP0486837A1 High speed low offset CMOS amplifier with power supply noise isolation |
| 05/27/1992 | CN1061499A New type all channel high frequency amplifier |
| 05/26/1992 | US5117203 Phase stable limiting power amplifier |
| 05/26/1992 | US5117200 Compensation for a feedback amplifier with current output stage |
| 05/26/1992 | US5117197 High-power feed-forward microwave amplifier apparatus with out-of-band intermodulation product suppression |
| 05/26/1992 | CA1301861C Operational amplifier |
| 05/26/1992 | CA1301849C Power saving arrangement and power saving method |
| 05/22/1992 | CA2055723A1 Second-order predistortion circuit for use with laser diode |
| 05/20/1992 | EP0486399A1 Biopotential amplifier |
| 05/20/1992 | EP0485853A2 Output stage for amplifier |
| 05/20/1992 | CN1061310A Fast phase shift adjusting method and device for linear transmitter |
| 05/19/1992 | US5115203 Digital power amplifier |
| 05/19/1992 | US5115202 Chopper-stabilized amplifier with spread-spectrum clocking |
| 05/19/1992 | CA1301267C High-speed electronic circuit having a cascode configuration |
| 05/19/1992 | CA1301263C Power saving low frequency power amplifier |
| 05/19/1992 | CA1301249C Integrated poly-phase power meter |
| 05/13/1992 | EP0485183A2 High power feed-forward microwave amplifier with out-of-band intermodulation product suppression |
| 05/13/1992 | EP0484360A1 Electrical switching circuit. |
| 05/13/1992 | CN1061123A Linear transmitter training method and apparatus |
| 05/12/1992 | US5113414 Predistortion arrangement for a digital transmission system |
| 05/12/1992 | US5113148 Linear CMOS output stage |
| 05/12/1992 | US5113147 Wide-band differential amplifier using gm-cancellation |
| 05/12/1992 | US5113146 Amplifier arrangement |
| 05/12/1992 | US5113145 Power amplifier for feeding an inductance with switched transistors |
| 05/12/1992 | US5113143 Chopper amplifier for measuring low DC current |
| 05/06/1992 | EP0484166A2 Fractional load current detector |
| 05/06/1992 | EP0484031A2 Merged current clamp in triple-input transconductor, for use in oscillator |
| 05/05/1992 | US5111159 Amplifier circuit with open-loop gain that can be varied with respect to closed-loop gain |
| 05/05/1992 | US5111158 Modulated voltage supply and fault monitoring thereof adapted for use in an RF power amplifier system |
| 05/05/1992 | US5111156 Current amplifier circuit |
| 05/05/1992 | US5111155 Distortion compensation means and method |
| 05/01/1992 | WO1992008291A1 Fast phase shift adjusting method and device for linear transmitter |
| 05/01/1992 | WO1992008280A1 Linear transmitter training method and apparatus |
| 04/29/1992 | EP0483094A2 A pulse-width modulated, linear audio-power amplifier |
| 04/29/1992 | EP0482502A2 Power amplifier and mobile radio apparatus with the same |
| 04/29/1992 | EP0482290A2 Circuit for muting noises for an audio amplifier |
| 04/29/1992 | EP0482271A1 Current-to-voltage converter with low noise, wide bandwidth and high dynamic range |
| 04/28/1992 | US5109261 CMOS amplifier with offset adaptation |
| 04/28/1992 | US5109170 Current compensation circuit |
| 04/28/1992 | CA1299683C Rf power amplifier system having amplifier protection |
| 04/25/1992 | WO1992008297A1 An apparatus and method for varying a signal in a transmitter of a transceiver |
| 04/22/1992 | EP0481807A2 Transmitter with nonlinearity correction circuit |
| 04/22/1992 | EP0481741A2 High frequency power amplifier circuit and mobile radio communication apparatus using the same |
| 04/22/1992 | EP0481630A1 High efficiency cross-coupled folded cascode circuit |
| 04/22/1992 | EP0481529A2 Hearing aid circuit |
| 04/22/1992 | EP0481528A2 Hearing aid circuit |
| 04/21/1992 | US5107520 Adaptive predistortion circuit for a digital transmission system |
| 04/21/1992 | US5107389 Circuit for limiting temperature without distortion in audio power amplifiers |
| 04/21/1992 | US5107224 Wideband single-ended voltage-to-current converter and gain-control circuit |
| 04/21/1992 | US5107190 Means and method for optimizing the switching performance of power amplifiers |
| 04/15/1992 | EP0480815A1 Integrated amplifier circuit with one input signal connection |
| 04/15/1992 | EP0480517A2 A temperature responsive circuit |
| 04/15/1992 | EP0480341A1 Hybrid matrix amplifier systems, and methods for making thermally-balanced hybrid matrix amplifier systems |
| 04/14/1992 | US5105446 Digital method of correcting non-linearity in a transmission chain, and apparatus implementing the method |
| 04/14/1992 | US5105445 Predistortion arrangement for a digital transmission system |
| 04/14/1992 | US5105168 Vector locked loop |
| 04/14/1992 | US5105165 Low distortion, low noise, amplifier |
| 04/14/1992 | US5105164 High efficiency uhf linear power amplifier |
| 04/14/1992 | US5105145 Voltage control circuit |
| 04/08/1992 | EP0479704A2 Linear amplifier |
| 04/08/1992 | EP0479119A2 Compensation circuit and method for stabilizing an operational amplifier |
| 04/08/1992 | EP0259403B1 Method for the compensation of the offset voltage of a regulating amplifier and circuit arrangement for implementing such method |
| 04/07/1992 | US5103189 High-efficiency amplifier |
| 04/07/1992 | US5103122 High speed low power dc offsetting circuit |
| 04/07/1992 | CA1298628C Amplifier circuit |
| 04/02/1992 | WO1992005632A1 High gain bandpass filter |
| 04/02/1992 | WO1992005629A1 Noise canceling photodetector preamplifier useful for computerized tomography |
| 04/02/1992 | WO1992005628A1 Working point adjusting circuit for a power amplifier |
| 04/01/1992 | EP0478298A2 Low-noise preamplifier for magneto-resistive heads |
| 04/01/1992 | EP0478297A1 Wide-band differential amplifier using GM-cancellation |
| 04/01/1992 | EP0478265A1 Phase based vector modulator |
| 04/01/1992 | EP0477429A1 Input protection structure for integrated circuits |
| 04/01/1992 | EP0477392A1 Input protection structure for integrated circuits |
| 04/01/1992 | CN1059996A Ac voltage amplifier |
| 03/31/1992 | US5101211 Closed loop RF power amplifier output correction circuit |
| 03/31/1992 | US5101172 Linear amplifier |
| 03/31/1992 | US5101171 Extended bandwidth RF amplifier |
| 03/31/1992 | US5101170 High-efficiency audio amplifier |
| 03/31/1992 | CA1298361C Circuit for automatically controlling the gain-bandwidth product of operational amplifiers |
| 03/26/1992 | DE4126061A1 Complementary MOSFET operational amplifier for analogue function |
| 03/25/1992 | EP0477087A1 Device for processing a signal originating from a sensor having a differentiating response |
| 03/25/1992 | EP0476908A1 Amplifying circuit |
| 03/25/1992 | EP0476775A2 Circuit arrangement to compensate the base current of a transistor |
| 03/25/1992 | EP0476365A1 An adaptive bias current control circuit |
| 03/24/1992 | US5099332 Grid tube with increased efficiency |
| 03/24/1992 | US5099205 Balanced cascode current mirror |
| 03/22/1992 | CA2051882A1 Device for processing the output signal of a derivative type response sensor |
| 03/19/1992 | WO1992004770A1 Differential amplifying circuit of operational amplifier |
| 03/19/1992 | WO1992004768A1 Power amplifiers |
| 03/18/1992 | EP0475376A2 Apparatus and method for linearizing the operation of an external optical modulator |
| 03/18/1992 | EP0474930A1 Amplifying with directly coupled, cascaded amplifiers |
| 03/18/1992 | EP0474916A2 Frequency multiplier with analog function generator with linear electronic components |
| 03/18/1992 | CA2042277A1 Noise canceling photodetector preamplifier useful for computerized tomography |
| 03/17/1992 | US5097225 Amplifier with short-circuit protection |
| 03/17/1992 | US5097223 Current feedback audio power amplifier |