| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 01/25/1995 | EP0635933A2 Constant-amplitude wave combination type amplifier |
| 01/25/1995 | EP0635173A1 Differential amplifier |
| 01/24/1995 | US5384548 Constant transconductance bias circuit and method |
| 01/19/1995 | WO1995002278A1 Automatic transimpedance control amplifier |
| 01/19/1995 | WO1995002277A1 Stable, narrow bandwidth, high frequency amplifier with low power consumption |
| 01/18/1995 | EP0634836A2 Distributed amplifier and bidirectional amplifier |
| 01/18/1995 | EP0634835A2 Low voltage RF amplifier and mixer with single bias block and method |
| 01/18/1995 | CN1027478C High dynamic range modulation independent feed forward amplifier network |
| 01/17/1995 | US5382956 Integrated circuit for physiological signal measurement |
| 01/17/1995 | US5382919 Wideband constant impedance amplifiers |
| 01/17/1995 | US5382917 Amplifier circuit |
| 01/17/1995 | US5382916 Differential voltage follower |
| 01/17/1995 | US5382915 Pulsewidth-modulated amplifier having analog mode |
| 01/17/1995 | US5382838 Digital driver with class AB output stage |
| 01/17/1995 | US5382819 Semiconductor device having MOS source follower circuit |
| 01/17/1995 | US5382786 Integrated photodetector with moving destination circuit |
| 01/12/1995 | WO1995001652A1 Electrical charge transfer apparatus |
| 01/11/1995 | EP0633674A2 Radio-transceiver with means for reducing interference |
| 01/11/1995 | EP0633657A2 Cascaded amplifier |
| 01/11/1995 | EP0633656A2 MOS differential voltage-to-current converter circuit |
| 01/11/1995 | EP0633577A1 Retroactively controlled charge-voltage convertor |
| 01/11/1995 | EP0632941A1 Optical receiver |
| 01/11/1995 | EP0632939A1 Linear amplifier control |
| 01/10/1995 | US5381515 Two layer neural network comprised of neurons with improved input range and input offset |
| 01/10/1995 | US5381148 Method and apparatus for calibrating a gain control circuit |
| 01/10/1995 | US5381114 Continuous time common mode feedback amplifier |
| 01/10/1995 | US5381113 Differential amplifier circuit using quadritail circuit |
| 01/10/1995 | US5381112 Fully differential line driver circuit having common-mode feedback |
| 01/10/1995 | US5381110 Spurious frequency suppressor |
| 01/10/1995 | US5381109 Pulse step modulator having faulted module detection and compensation |
| 01/10/1995 | US5381044 Bootstrap circuit for driving a power MOS transistor |
| 01/05/1995 | WO1995001050A1 Using d-c feedback with on-chip filtering to balance i-f drive to second detector in monolithic ic |
| 01/05/1995 | WO1995000856A1 Measurement amplifier |
| 01/04/1995 | EP0632585A1 System for the bias control of an amplifier |
| 01/04/1995 | EP0632583A1 Variable gain amplifier |
| 01/04/1995 | EP0632582A1 Operational amplifier and method |
| 01/04/1995 | EP0632581A2 Fully differential amplifier |
| 01/04/1995 | EP0632580A2 Output amplifier stage |
| 01/04/1995 | EP0632578A2 Electronic load resistor |
| 01/04/1995 | EP0632430A2 Amplifying circuit for magnetic record and playback apparatus |
| 01/04/1995 | EP0631699A1 Coupling circuit |
| 01/04/1995 | EP0484360B1 Electrical switching circuit |
| 01/03/1995 | US5378999 Hybrid matrix amplifier |
| 01/03/1995 | US5378997 Low noise amplifier with capacitive feedback |
| 01/03/1995 | US5378996 RF power amplifier control |
| 01/03/1995 | US5378933 Circuit arrangement having a switching amplifier |
| 01/03/1995 | CA2019393C Video preamplifier circuit |
| 12/31/1994 | CA2126919A1 System for controlling the bias voltage applied to an amplifier |
| 12/28/1994 | EP0631380A1 Sequential amplifier |
| 12/28/1994 | EP0631121A2 Semiconductor strain sensor with Wheatstone bridge drive voltage compensation circuit |
| 12/28/1994 | EP0630536A1 Audio amplifiers |
| 12/28/1994 | CN1096915A Parallel untuned video if amplifiers supplied signals from TV 1st detector via respective input filters |
| 12/28/1994 | CN1096914A Using D-C feedback with on-chip filtering to balance I-F drive to second detector in monolithic |
| 12/28/1994 | CN1096913A Efficient amplitude/phase modulaton amplifier |
| 12/27/1994 | US5376900 Push-pull output stage for amplifier in integrated circuit form |
| 12/27/1994 | US5376899 Amplifier with gain stages coupled for differential error correction |
| 12/27/1994 | US5376898 Semiconductor integrated circuit device |
| 12/27/1994 | US5376897 Differential amplifier circuit providing high gain output at low power supply voltage |
| 12/27/1994 | US5376832 MOS half-bridge drive circuit, particularly for power MOS half-bridges |
| 12/25/1994 | WO1995001049A1 Parallel untuned video if amplifiers supplied signals from tv 1st detector via respective input filters |
| 12/22/1994 | WO1994029952A1 Methods and apparatus for connecting and conditioning audio signals |
| 12/22/1994 | WO1994029951A1 Methods and apparatus for microphone preamplification |
| 12/22/1994 | WO1994029950A1 Optical coupler galvanic isolation device, and modem incorporating it |
| 12/22/1994 | WO1994029947A1 Low noise oscillators and tracking filters |
| 12/22/1994 | DE4401609C1 Power amplifier for the feeding of an inductive load by switched transistors |
| 12/21/1994 | EP0630105A2 Voltage controlled attenuator for speakerphones |
| 12/21/1994 | EP0630104A2 Microwave Doherty amplifier |
| 12/21/1994 | EP0630103A2 Emitterfollower circuit and analog to digital converter using such circuit |
| 12/21/1994 | EP0630102A2 High gain differential amplifier capable of reducing offset voltage |
| 12/21/1994 | EP0629938A2 Compensation for low gain bipolar transistors in voltage and current reference circuits |
| 12/21/1994 | EP0629878A1 Radar ground surveillance system, particularly for airport |
| 12/21/1994 | CN1027118C Switching apparatus with cascaded switch sections |
| 12/20/1994 | US5374994 Input/output switching circuit for connecting audio/video units |
| 12/20/1994 | US5374966 Low noise impedance-matched video amplifier |
| 12/20/1994 | US5374899 Self biased power amplifier employing FETs |
| 12/20/1994 | US5374897 Balanced, high-speed differential input stage for Op-amps |
| 12/20/1994 | US5374859 Low power dual power supply high resolution comparator |
| 12/15/1994 | DE4420041A1 Constant voltage generating device |
| 12/15/1994 | DE4320561C1 IF amplifier for a satellite receiver |
| 12/14/1994 | EP0629043A1 High frequency amplifier |
| 12/14/1994 | EP0629042A1 Optical transmission system |
| 12/13/1994 | US5373473 Amplifier circuit and semiconductor memory device employing the same |
| 12/13/1994 | US5373253 Monolithic current mirror circuit employing voltage feedback for β-independent dynamic range |
| 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 | US5373249 Complementary cascode push-pull amplifier |
| 12/13/1994 | US5373248 Transconductor employing differential pair composite field effect transistors |
| 12/13/1994 | US5373228 Integrated circuit having a cascode current mirror |
| 12/09/1994 | CA2119224A1 Apparatus for simultaneously detecting a plurality of discrete laser modulation frequencies |
| 12/08/1994 | WO1994028626A1 Polarization current controlled electronic circuit such as an adjustable resistance, a negative resistance or a filter or similar |
| 12/08/1994 | WO1994028625A1 Four quadrant current mode switching amplifier |
| 12/08/1994 | WO1994028624A1 Low differential output impedance method and apparatus for buffering a voltage |
| 12/07/1994 | EP0627813A1 Integrated amplifier with an accurately defined gain factor |
| 12/06/1994 | US5371479 Pre-amplifier with multi-stage feedback |
| 12/06/1994 | US5371477 Linear amplifier |
| 12/06/1994 | US5371476 Amplifying circuit |
| 12/06/1994 | US5371475 Low noise oscillators and tracking filters |
| 12/06/1994 | US5371474 Differential amplifier having rail-to-rail input capability and square-root current control |
| 12/06/1994 | US5371472 Charge amplifier for sensors outputting electrical charge |
| 12/06/1994 | US5371421 Low power BiMOS amplifier and ECL-CMOS level converter |