| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 10/09/1997 | WO1997037428A2 RAIL-TO-RAIL INPUT STAGES WITH CONSTANT gm AND CONSTANT COMMON-MODE OUTPUT CURRENTS |
| 10/08/1997 | EP0799524A1 Differential audio line receiver |
| 10/08/1997 | EP0799459A1 Electro-optical sensor |
| 10/08/1997 | EP0722630A4 Low power analog absolute differencing circuit and architecture |
| 10/08/1997 | CN1036105C Linear amplifier control |
| 10/08/1997 | CA2199654A1 Liquid cooling system for high power solid state am transmitter |
| 10/07/1997 | US5675656 Power amplifier with clipping level control |
| 10/07/1997 | US5675290 Microwave amplifier circuit |
| 10/07/1997 | US5675289 Differential amplifier |
| 10/07/1997 | US5675285 Multichannel predistortion linearizer for multiple amplifiers with multiple antennas |
| 10/07/1997 | US5675264 Phase differential circuit having high synchronicity |
| 10/07/1997 | US5675242 Semiconductor integrated circuit |
| 10/07/1997 | US5675239 For providing power to a positive and negative load |
| 10/07/1997 | US5675184 Integrated circuit device |
| 10/02/1997 | WO1997036371A1 Measuring amplifier |
| 10/01/1997 | EP0797867A1 Low voltage linear output buffer operational amplifier |
| 10/01/1997 | EP0469143B1 Push-pull optical receiver |
| 09/30/1997 | US5673003 Amplifier circuit having a variable bandwidth |
| 09/30/1997 | US5673002 Operational amplifier having stable operations for a wide range of source voltage, and current detector circuit employing a small number of elements |
| 09/30/1997 | US5673001 Method and apparatus for amplifying a signal |
| 09/30/1997 | US5673000 Dynamically invariant AB linear operation amplifier |
| 09/30/1997 | US5672998 Class D amplifier and method |
| 09/30/1997 | CA2056098C Balanced cascode current mirror |
| 09/24/1997 | EP0797303A2 Inverter circuit and amplifier |
| 09/24/1997 | EP0797297A2 Field effect transistor amplifier |
| 09/24/1997 | EP0797296A2 Low voltage operational amplifier input stage and method |
| 09/24/1997 | EP0797295A1 Low Voltage operational amplifier and method |
| 09/24/1997 | EP0797293A1 Method for correcting non-linear distortion of an amplifier and radio transmitter using such method |
| 09/24/1997 | EP0796523A2 Comparator with smooth start-up for high frequencies |
| 09/24/1997 | CN2263415Y Multi-sound track power amplifier |
| 09/24/1997 | CN1160311A Mute control circuit |
| 09/24/1997 | CN1160305A Tri-state audio differential driver |
| 09/23/1997 | US5670912 Variable supply biasing method and apparatus for an amplifier |
| 09/23/1997 | US5670911 FET amplifier and bias power supply circuit for commonly amplifying multi-radio frequency (RF) signals |
| 09/23/1997 | US5670910 Operational amplifier free from dispersion in quiescent current consumed by output stage |
| 09/23/1997 | US5670850 Video circuit and video signal processing and control techniques for controlling the "tilt" of a video display that may be implemented with LinBiCMOS technology |
| 09/23/1997 | US5670775 In an optical density sensing circuit |
| 09/23/1997 | CA2107733C High frequency wide band power amplifier |
| 09/22/1997 | CA2200660A1 Method of correcting nonlinearities of an amplifier, and radio transmitter employing a method of this type |
| 09/18/1997 | WO1997034369A1 Pulse waveform generator |
| 09/18/1997 | WO1997034368A1 Tuning amplifier |
| 09/18/1997 | WO1997034366A1 A cmos microwave multiphase voltage controlled oscillator |
| 09/18/1997 | WO1997034294A1 Electric circuit for a magnetic tape recorder, device for magnetic recording of analog signals, device for converting non-electrical variables into electrical signals and a sound-reproduction system for the electric circuit of the tape recorder |
| 09/17/1997 | EP0795963A2 Analog to digital converter |
| 09/17/1997 | EP0795956A1 Power amplifier and communication device |
| 09/17/1997 | EP0795808A1 Regulated power supply |
| 09/17/1997 | EP0795236A1 Analog to digital converter using complementary differential emitter pairs |
| 09/17/1997 | EP0795235A1 n-BIT CONVERTER WITH n-1 MAGNITUDE AMPLIFIERS AND n COMPARATORS |
| 09/17/1997 | EP0705438B1 Measurement amplifier |
| 09/17/1997 | EP0579686B1 Transducer circuit |
| 09/17/1997 | CN1159687A Method and system for increasing power factor of balance amplifier/antenna assembly |
| 09/16/1997 | US5669068 Complimentary switched amplifier transceiver system |
| 09/16/1997 | US5668512 Coplanar waveguide-mounted flip chip having coupled ground conductors |
| 09/16/1997 | US5668508 Oscillator circuit having oscillation frequency independent from the supply voltage value |
| 09/16/1997 | US5668502 Amplifier stage having a switchable gain and reduced distortion |
| 09/16/1997 | US5668500 CMOS buffer amplifier |
| 09/16/1997 | US5668499 Tube type power amplifier with distortion control |
| 09/16/1997 | US5668494 Circuit and method for driving alternatively electric loads with low impedance |
| 09/16/1997 | US5668468 Common mode stabilizing circuit and method |
| 09/16/1997 | CA2132003C Coupling circuit |
| 09/12/1997 | WO1997033366A2 Circuit arrangement comprising a logarithmic transfer function |
| 09/12/1997 | WO1997033365A1 Operational amplifier |
| 09/11/1997 | DE19608861A1 Schaltungsanordnung mit einer logarithmischen Übertragungsfunktion Circuitry with a logarithmic transfer function |
| 09/10/1997 | EP0794613A1 Low noise-high linearity HEMT-HBT composite |
| 09/10/1997 | EP0794535A2 Current copiers with improved accuracy |
| 09/10/1997 | CN1159259A Power combiner for use in radio frequency systema nd method of constructing power combiner |
| 09/10/1997 | CN1159098A Computing amplifier and digital signal transmission circuit |
| 09/09/1997 | US5666280 High voltage integrated circuit driver for half-bridge circuit employing a jet to emulate a bootstrap diode |
| 09/09/1997 | US5666087 Active resistor for stability compensation |
| 09/09/1997 | US5666086 Filter circuit employing a current amplifier having a fully differential output without a D.C. bias |
| 09/09/1997 | US5666035 Direct current actuator control system using pulse-width modulation in four bipolar transistors connected in H-manner |
| 09/09/1997 | CA2114264C Differential amplifier circuit having a driver with square-law characteristic |
| 09/04/1997 | DE19629769C1 Signal transistor operating point setting circuit |
| 09/03/1997 | EP0543985B1 Windshear radar system with upper and lower elevation radar scans |
| 09/02/1997 | US5663915 Amplifier and method for sensing having a pre-bias or coupling step |
| 09/02/1997 | US5663683 Mist cooled distributed amplifier utilizing a connectorless module |
| 09/02/1997 | US5663682 Wide bandwidth combiner-amplifier |
| 09/02/1997 | US5663681 Apparatus and method for stabilizing an amplifier |
| 09/02/1997 | US5663673 Output circuit having at least one external transistor |
| 09/02/1997 | US5663671 Electronic circuit including operational amplifier and clamping circuit |
| 09/02/1997 | US5663597 RF device package for high frequency applications |
| 08/27/1997 | EP0792013A1 Operational amplification circuit |
| 08/27/1997 | EP0792012A2 Amplifier for burst signal and optical receiving circuit |
| 08/27/1997 | EP0791876A2 Current mirror circuit and signal processing circuit |
| 08/27/1997 | EP0791252A1 Wireless diffuse infrared lan system |
| 08/27/1997 | EP0791245A1 Driving stage |
| 08/27/1997 | EP0677220B1 Stable distortion amplifier for audio signals |
| 08/27/1997 | CN1158191A IF amplifiers/limiters |
| 08/27/1997 | CN1158025A Semiconductor integrated circuit with differential circuit |
| 08/26/1997 | US5661647 Low temperature co-fired ceramic UHF/VHF power converters |
| 08/26/1997 | US5661438 Impedance matching circuit |
| 08/26/1997 | US5661436 For driving a video output load |
| 08/26/1997 | US5661435 Low noise wide band amplifier |
| 08/26/1997 | US5661423 High speed comparator circuits with offset voltage compensation |
| 08/24/1997 | CA2198161A1 Preamplifier for optical communication |
| 08/21/1997 | WO1997030515A1 Method and apparatus providing limiting transimpedance amplification |
| 08/21/1997 | WO1997030514A1 Hybrid solid state/vacuum tube audio amplifier |
| 08/21/1997 | WO1997030513A1 High-power ampliflier using parallel transistors |
| 08/21/1997 | WO1997030512A1 High swing, low power general purpose operational ampliflier |
| 08/21/1997 | WO1997024794A3 Integrated driver for half-bridge circuit |