| 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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| 03/17/1992 | CA1297543C Advanced vhf-uhf wideband amplifier and signal processing device incorporating said amplifier, particularly for television signals |
| 03/10/1992 | US5095285 Monolithically realizable harmonic trapping circuit |
| 03/10/1992 | US5095284 Subthreshold CMOS amplifier with wide input voltage range |
| 03/10/1992 | US5095283 Amplifier circuit having feedback circuit |
| 03/10/1992 | CA1297185C Hearing aid circuit |
| 03/04/1992 | EP0473299A2 Solid state power amplifier with dynamically adjusted operating point |
| 03/04/1992 | EP0473166A1 Amplifying circuit |
| 03/04/1992 | EP0473165A1 Push-pull power amplifying circuit |
| 03/03/1992 | USH1035 Non-volatile analog memory circuit with closed-loop control |
| 03/03/1992 | US5093667 T/R module with error correction |
| 03/03/1992 | US5093637 Modulation device with input signal modification for correction of amplifier nonlinearities |
| 03/03/1992 | US5093636 Phase based vector modulator |
| 03/03/1992 | US5093634 Merged current clamp in triple-input transconductor, for use in oscillator |
| 03/03/1992 | US5093629 Amplifier circuit having second order signal cancellation |
| 03/03/1992 | CA1296778C Feed forward distortion correction circuit |
| 02/26/1992 | EP0472406A1 High speed low power DC offsetting circuit |
| 02/26/1992 | EP0472340A1 A compensation method and apparatus for enhancing single ended to differential conversion |
| 02/25/1992 | US5091919 Transmitter arrangement for digitally modulated signals |
| 02/25/1992 | US5091701 High efficiency cross-coupled folded cascode circuit |
| 02/25/1992 | US5091690 Method for monitoring operational condition of circuit components |
| 02/25/1992 | CA1296396C Error amplifier for use with parallel operated autonomous current or voltage regulators using transconductance type power amplifiers |
| 02/19/1992 | EP0471346A1 High frequency power amplifier with high efficiency and low distortion |
| 02/11/1992 | US5087892 Gain stabilizing amplifier |
| 02/11/1992 | CA1295694C Predistortion compensated linear amplifier |
| 02/05/1992 | EP0469600A1 Semiconductor integrated circuit containing a circuit having an impedance circuit externally attached thereto |
| 02/05/1992 | EP0469143A1 Push-pull optical receiver. |
| 02/05/1992 | EP0252089B1 A method of calibrating and equalizing a multi-chanel automatic gain control amplifier |
| 02/05/1992 | EP0248033B1 Multi-level power amplifying circuitry for portable radio transceivers |
| 02/04/1992 | CA1295379C Feed forward linear amplifier |
| 02/04/1992 | CA1295373C High gain bandpass filter |
| 01/29/1992 | EP0468861A2 Semiconductor memory device having a current-mirror amplifier for reading data |
| 01/29/1992 | EP0468760A1 Amplifier having two operating modes |
| 01/28/1992 | US5084639 Low frequency noise canceling photodetector preamplifier useful for computerized tomography |
| 01/23/1992 | WO1992001348A1 Circuit for receiving light |
| 01/22/1992 | EP0467655A1 Differential amplifying circuit |
| 01/22/1992 | EP0467450A1 Broad band amplifier with separate outputs |
| 01/22/1992 | CN1058122A Process for compensation nonlinearities in amplifier circuit |
| 01/21/1992 | US5083096 High frequency amplifier circuit capable of optimizing a total power consumption |
| 01/21/1992 | US5083051 Output driver circuit with improved output stage biasing |
| 01/15/1992 | EP0466233A1 Circuit for selective amplification of signals |
| 01/15/1992 | EP0466123A1 Feed-forward amplifier |
| 01/15/1992 | EP0465709A1 Method for compensating the nonlinear distortions of an amplifier |
| 01/15/1992 | EP0465668A1 Head amplifier |
| 01/15/1992 | EP0465575A1 Differential amplifier with gain compensation. |
| 01/14/1992 | US5081426 Power amplifier having a standby circuit |
| 01/14/1992 | US5081425 Vswr adaptive power amplifier system |
| 01/14/1992 | US5081423 Integrator and active filter including integrator with simple phase compensation |
| 01/14/1992 | CA1294335C Cmos voltage divider circuits |
| 01/13/1992 | CA2046457A1 Process for compensating nonlinearities in an amplifier circuit |
| 01/09/1992 | DE4021290A1 Video signal level amplification and switching circuit - uses current-controlled switches to minimise circuit potential differences and enhance component protection |
| 01/08/1992 | CN1057740A High precision composite amplifier with improved high speed response |
| 01/07/1992 | US5079515 Linearized differential amplifier |
| 01/07/1992 | US5079514 Compensation circuit and method for stabilizing an operational amplifier |
| 01/02/1992 | EP0463880A1 Amplifier |
| 01/02/1992 | EP0463857A1 Emitter-grounded amplifier circuit with bias circuit |
| 01/02/1992 | EP0463356A2 Device for reducing the noise of a potentiometer position evaluation |
| 12/31/1991 | US5077539 Switching amplifier |
| 12/31/1991 | US5077532 Feed forward distortion minimization circuit |
| 12/30/1991 | CA2042146A1 High precision composite amplifier with improved high speed response |
| 12/26/1991 | WO1991020125A1 Low offset unity gain buffer amplifier |
| 12/24/1991 | US5075635 Device for correcting the phase induced by the class c operation of the solid state amplifier and radar system using such a device |
| 12/24/1991 | US5075634 Composite bridge amplifier |
| 12/17/1991 | US5073759 Adaptable current mirror |
| 12/17/1991 | US5073747 Feedback system control device and applications in amplifiers and servomechanisms |
| 12/12/1991 | WO1991019349A1 High-frequency amplifier unit with a hot standby redundancy |
| 12/12/1991 | WO1991019348A1 Apparatus for detecting failure of an antenna amplifier unit with a hot standby redundancy |
| 12/11/1991 | EP0460775A2 A circuit for providing a pulsed output signal from three binary input signals |
| 12/11/1991 | EP0460273A1 Gain stabilizing amplifier |
| 12/11/1991 | EP0460263A1 Linear CMOS output stage |
| 12/10/1991 | US5072194 Differential amplifier with capacitive coupling |
| 12/04/1991 | EP0459440A2 Radio transmitter apparatus |
| 12/04/1991 | EP0459071A1 Offset and slew-rate equalization and control for a pair of voltage-to-current transducers using the same reference voltage |
| 12/04/1991 | EP0459070A1 High slew-rate operational amplifier with bias controlled by the input differential signal |
| 12/04/1991 | EP0424394A4 Means for reducing damage to jfets from electrostatic discharge events |
| 12/03/1991 | US5070538 Wide band domino effect high voltage regulator |
| 12/03/1991 | US5070309 RF power amplifier having improved amplifier protection |
| 12/03/1991 | US5070308 Working point adjusting circuit for a power amplifier |
| 12/03/1991 | US5070307 Differential amplifier with enhanced slew rate |
| 12/03/1991 | US5070305 Device for converting unbalanced analog electric signals into fully differential signals |
| 11/28/1991 | WO1991018363A1 Wideband differential voltage-to-current converters |
| 11/27/1991 | EP0458332A2 Temperature detection circuit used in thermal shielding circuit |
| 11/27/1991 | EP0458071A1 VSWR adaptive power amplifier system |
| 11/27/1991 | EP0457818A1 Ultrahigh frequency amplifier circuit with reduced distortion |
| 11/27/1991 | EP0250453B1 Cascaded internal impedance dependent amplifier with accurate variable gain control |
| 11/27/1991 | CN2089672U Isolated electromagnetic speed regulating motor controller |
| 11/27/1991 | CN1014949B Charge amplifier circuit |
| 11/26/1991 | US5068623 High-gain amplifier with low noise and low power dissipation, using field effect transistors |
| 11/26/1991 | US5068622 CMOS amplifier with offset adaptation |
| 11/26/1991 | US5068621 Compensation method and apparatus for enhancing single-ended to differential conversion |
| 11/26/1991 | US5068620 Circuit for securing output distortion, in particular of final stages of audio devices |
| 11/26/1991 | CA1292557C Video display driver apparatus |
| 11/21/1991 | EP0457582A2 Level detecting circuit |
| 11/21/1991 | EP0457160A1 Cascode mirror video amplifier |
| 11/19/1991 | US5066926 Segmented cascode HBT for microwave-frequency power amplifiers |
| 11/19/1991 | US5066923 Linear transmitter training method and apparatus |
| 11/19/1991 | US5066922 Stabilizing circuit for feedback RF amplifier |
| 11/19/1991 | CA1292277C Bicmos voltage reference generator |
| 11/13/1991 | CN1014759B Alternating current amplifier with digitally controlled frequency response |
| 11/12/1991 | US5065351 Stabilization and calibration of precision electronic circuit component |
| 11/12/1991 | US5065113 Multiple-amplifier control arrangement |