| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 03/09/1994 | EP0586062A1 Amplifier for magnetoresistive sensor |
| 03/09/1994 | EP0586038A1 Local feedback stabilized emitter follower cascade |
| 03/09/1994 | EP0585491A1 Field of electric transistor of metal-oxide-semiconductor (MOSFET) |
| 03/09/1994 | EP0585421A1 High dynamic range modulation independent feed forward amplifier network |
| 03/08/1994 | US5293514 Integrating filter circuit |
| 03/08/1994 | US5293169 Switched capacitor circuit for precision resistance |
| 03/08/1994 | US5293136 Two-stage rail-to-rail operational amplifier |
| 03/08/1994 | US5293101 Driving circuit apparatus for CRT |
| 03/03/1994 | WO1994005079A1 Amplifier stage with low thermal distortion |
| 03/02/1994 | EP0584786A1 Averaging circuit |
| 03/02/1994 | EP0584544A1 Operational amplifier |
| 03/02/1994 | EP0584437A1 Transconductor stage |
| 03/02/1994 | EP0584435A1 High impedance,high ratio current mirror |
| 03/01/1994 | US5291149 Operational amplifier |
| 03/01/1994 | US5291146 Transverse traveling wave amplifier |
| 02/24/1994 | DE4326133A1 Rapid sense amplifier for integrated memory circuit - has two MOS transistors acting as diodes in series between power rails, and inverter responsive to voltage at input node to provide output logic state determined by input current |
| 02/23/1994 | EP0583901A1 Combiners for R.F. power amplifiers |
| 02/23/1994 | EP0583815A1 Common-mode signal sensor |
| 02/23/1994 | EP0583398A1 Drive amplifier for power line communications |
| 02/23/1994 | CN1082782A Additional ciruit for transistor power amplification circuit |
| 02/22/1994 | US5289451 Optical information recording/reproduction apparatus including means for detecting the type of recording medium |
| 02/22/1994 | US5289137 Single supply operational amplifier and charge pump device |
| 02/22/1994 | US5289136 Bipolar differential pair based transconductance element with improved linearity and signal to noise ratio |
| 02/22/1994 | US5289058 MOS operational amplifier circuit |
| 02/16/1994 | EP0583203A1 Circuit that pulls the input of an integrated circuit into a defined state |
| 02/16/1994 | EP0583175A1 Emission tube excitation stage for a short wave transmitter |
| 02/16/1994 | EP0582862A1 Switched capacitor amplifier circuit |
| 02/16/1994 | EP0582649A1 Wide-band transconductance generator |
| 02/15/1994 | US5287393 Charge transfer device equipped with charge signal detector improved in sensitivity as well as in voltage amplification |
| 02/15/1994 | US5287340 Differential amplifier for optical detectors in an optical data storage system |
| 02/15/1994 | US5287071 Amplifier with high common mode rejection |
| 02/15/1994 | US5287070 Balanced voltage comparator |
| 02/15/1994 | US5287069 Constant-amplitude wave combination type amplifier |
| 02/15/1994 | US5286969 Apparatus for measuring optical power in an optical receiver with a non-linear element and a transconductance amplifier |
| 02/09/1994 | EP0581835A1 Circuit for controllable amplifier |
| 02/08/1994 | US5285172 Current mirror power amplifier with gain controlled by resistor-capacitor network |
| 02/08/1994 | US5285171 High output impedance amplifier |
| 02/08/1994 | US5285170 Operational amplifier with all NPN transistor output stage |
| 02/08/1994 | US5285169 Monolithic integrated differential amplifier with digital gain setting |
| 02/08/1994 | US5285168 Operational amplifier for stably driving a low impedance load of low power consumption |
| 02/08/1994 | US5285143 Measurement of load current in a multi-phase power amplifier |
| 02/02/1994 | EP0581701A1 CMOS differential amplifier with common-mode negative feedback |
| 02/02/1994 | EP0580933A1 Circuit device for reducing power consumption in an analog amplifier |
| 02/02/1994 | EP0580927A1 Operational amplifier |
| 02/01/1994 | US5283762 Semiconductor device containing voltage converting circuit and operating method thereof |
| 02/01/1994 | US5283537 Current mirror circuit |
| 02/01/1994 | US5283535 Differential amplifier arrangement |
| 02/01/1994 | US5283534 High frequency amplifying apparatus with a collector which has a periodic amplitude variable longitudinal magnetic field therein |
| 02/01/1994 | US5283441 Low-power current mirror having feedback with optical isolation |
| 02/01/1994 | CA2026066C Multibeam antenna feed device |
| 02/01/1994 | CA1326701C Amplifier |
| 01/26/1994 | EP0580567A1 Receiver for an optical transmission network |
| 01/26/1994 | EP0580089A1 Receiver for optical signals, with a preamplifier providing dc-offset correction, and a dual mode transimpedance amplifier |
| 01/26/1994 | EP0579751A1 Differential transimpedance amplifier |
| 01/26/1994 | EP0424394B1 Means for reducing damage to jfets from electrostatic discharge events |
| 01/25/1994 | US5282039 Video signal amplifier arrangement for a television display tube |
| 01/25/1994 | US5281925 RF amplifier providing reduced drive response rise times and fall times |
| 01/25/1994 | US5281924 Fully differential CMOS power amplifier |
| 01/25/1994 | US5281923 Amplifying arrangements which modulate an electron beam |
| 01/19/1994 | EP0579293A1 Hybrid amplifier |
| 01/19/1994 | EP0579041A2 Negative feedback sense pre-amplifier |
| 01/18/1994 | US5280633 Active antenna for two-way transmission |
| 01/18/1994 | US5280511 Output circuit for a CCD with cascode depletion MOSFET loads and a feedback capacitor |
| 01/18/1994 | US5280335 Fiber-optical testing system having a detection circuit |
| 01/18/1994 | US5280235 Fixed voltage virtual ground generator for single supply analog systems |
| 01/18/1994 | US5280199 Differential input circuit and operational amplifier with wide common mode input voltage range |
| 01/12/1994 | EP0578389A2 Audio amplifier circuit and method of operation |
| 01/12/1994 | EP0578098A1 Integrated driver circuit for a reactive load |
| 01/12/1994 | EP0577896A1 Preamplifier |
| 01/12/1994 | CN1023532C Anti-interference multi-input-single-output analog switch device |
| 01/11/1994 | US5278997 Dynamically biased amplifier |
| 01/11/1994 | US5278854 Signal amplification using optically activated bulk semi-insulating GaAs |
| 01/11/1994 | US5278700 Differentiating amplifier responsive to track locations and variations of element values from desired values |
| 01/11/1994 | US5278516 Buffer circuit |
| 01/11/1994 | US5278515 Method for optically transmitting an analog signal |
| 01/05/1994 | EP0577265A2 Light-receiving and amplifying device capable of widening an a.c. operation range |
| 01/05/1994 | EP0576774A1 Voltage regulator for memory devices |
| 01/05/1994 | DE4220693A1 Circuit for simultaneous transmission of current and voltage - has differential amplifiers and number of impedances, with ratio of specified impedances determining voltage translation ratio. |
| 01/04/1994 | US5276406 Gallium arsenide field effect transistor; high power |
| 01/04/1994 | US5276405 Integrated instrumentation amplifier for below-ground inputs |
| 01/04/1994 | US5276404 Constant current video amplifier |
| 12/29/1993 | EP0575598A1 Multi-zone audio distribution amplifier |
| 12/29/1993 | CN1080098A Zero-voltage complementary switching hige efficiency class D amplifier |
| 12/29/1993 | CN1023366C Large dynamic differential amplifier |
| 12/28/1993 | US5274342 Microwave monolithic integrated circuit (MMIC) including distributed cascode bipolar transistor amplifier unit |
| 12/28/1993 | US5274341 High-frequency power amplifier |
| 12/28/1993 | US5274340 Microwave multistage amplifier |
| 12/28/1993 | US5274339 Method for compensating for temperature |
| 12/27/1993 | CA2099215A1 Excitation stage of a transmission tube for short-wave transmitter |
| 12/23/1993 | WO1993026087A1 Feedback isolation amplifier |
| 12/22/1993 | EP0574415A1 Device for communication by light |
| 12/22/1993 | EP0369011B1 Multiphase multiplier |
| 12/21/1993 | US5272485 Microstrip antenna with integral low-noise amplifier for use in global positioning system (GPS) receivers |
| 12/21/1993 | US5272456 High-frequency bias supply circuit |
| 12/21/1993 | US5272450 DC feed network for wideband RF power amplifier |
| 12/15/1993 | EP0574070A1 Interface circuit for linking microprocessors |
| 12/15/1993 | CN1079597A Zero-signal automatic squelch circuit for power amplification |
| 12/15/1993 | CN1023174C Power amplifier having multiple switched stages |
| 12/14/1993 | US5270882 Low-voltage, low-power amplifier for magnetoresistive sensor |
| 12/14/1993 | US5270703 Bipolar signal amplification or generation |