| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 11/30/1999 | US5994755 Analog-to-digital converter and method of fabrication |
| 11/26/1999 | CA2272740A1 Novel biasing scheme for gaasfet amplifier |
| 11/26/1999 | CA2238955A1 Novel biasing scheme for gaasfet amplifier |
| 11/24/1999 | EP0959560A1 Error amplifier with a high common mode rejection |
| 11/24/1999 | EP0729670A4 A bidirectional amplifier |
| 11/24/1999 | EP0719474B1 BiCMOS OPERATIONAL AMPLIFIER FOR SWITCH-CAPACITOR CIRCUITS |
| 11/24/1999 | CN1236503A An arrangement for reducing and stabilizing the amplification of a Darlington-coupled output stage |
| 11/24/1999 | CN1236218A High efficiency class-A open loop transistor constant current amplifier |
| 11/23/1999 | US5991179 Power amplifier with multiple, switched output stages, and method and driver for driving the output stages using different pattern signals groups |
| 11/23/1999 | US5990951 Solid-state imaging device and method for driving the same |
| 11/23/1999 | US5990747 High frequency amplifier circuit and microwave integrated circuit |
| 11/23/1999 | US5990745 Discharge element for charge-integrating preamplifier |
| 11/23/1999 | US5990743 Amplifier having improved common mode voltage range |
| 11/23/1999 | US5990742 Differential amplifier circuit |
| 11/23/1999 | US5990741 Variable gain amplifier |
| 11/23/1999 | US5990739 Analog signal amplifier |
| 11/23/1999 | US5990737 Balanced amplifier using single-ended output operational amplifiers |
| 11/23/1999 | US5990736 High frequency amplifier with a guard circuit and a radio wave transmission apparatus including the same |
| 11/23/1999 | US5990727 Current reference circuit having both a PTAT subcircuit and an inverse PTAT subcircuit |
| 11/23/1999 | US5990710 High performance write driver for magnetic inductive recording head |
| 11/18/1999 | WO1999059243A1 Semiconductor circuit |
| 11/18/1999 | WO1999059242A2 A method of reducing distortion and noise of square-wave pulses, a circuit for generating minimally distorted pulses and use of method and circuit |
| 11/18/1999 | WO1999059241A2 A method of reducing distortion and noise of square-wave pulses, a circuit for generating minimally distorted pulses and use of method and circuit |
| 11/18/1999 | WO1999050953A3 An amplification circuit and an oscillator comprising said circuit |
| 11/18/1999 | DE19851718A1 MOS transistor amplifier circuit for low voltage operation |
| 11/17/1999 | EP0957578A1 Transconductance control circuit, particularly for continous-time circuits |
| 11/17/1999 | EP0957575A1 Power amplifier of limited size for microwave circuit |
| 11/17/1999 | EP0957574A2 Multistage amplifier circuit with improved nested transconductance capacitance compensation |
| 11/17/1999 | EP0956663A1 Ratiometric compensated optical isolation coupler |
| 11/17/1999 | EP0956648A1 Transmitter combiner arrangement |
| 11/17/1999 | CN1235717A Method and arrangement for adapting, from DC point of view, first circuit to at least one second circuit |
| 11/17/1999 | CN1235711A Fulse modulation power amplifier with enhanced cascade control method |
| 11/17/1999 | CN1235407A Article comprising combiner-splitter |
| 11/16/1999 | US5987312 Offset-compensated linear RF detector having a detector part and a linearizer part |
| 11/16/1999 | US5986927 Autozeroing floating-gate amplifier |
| 11/16/1999 | US5986910 Voltage-current converter |
| 11/16/1999 | US5986518 Distributed MMIC active quadrature hybrid and method for providing in-phase and quadrature-phase signals |
| 11/16/1999 | US5986511 Frequency dependent impedance |
| 11/16/1999 | US5986509 Transistor amplifier stage |
| 11/16/1999 | US5986507 Current mirror circuit |
| 11/16/1999 | US5986506 Semiconductor microwave amplifier |
| 11/16/1999 | US5986505 Circular stripline package incorporating a MMIC low noise amplifier |
| 11/16/1999 | US5986503 Power amplifier with an idle current trimmed and a method of trimming the power amplifier |
| 11/16/1999 | US5986502 Multi-stage high-performance amplifier |
| 11/16/1999 | US5986500 Combined linear power amplifying device and method |
| 11/16/1999 | US5986498 Audio direct from power supply |
| 11/16/1999 | US5986494 Analog multiplier using multitail cell |
| 11/14/1999 | CA2272000A1 Power amplifier with reduced congestion for microwave circuits |
| 11/11/1999 | WO1999057809A1 High frequency receiver range switching circuit |
| 11/11/1999 | DE19819544A1 Schaltungsanordnung zur Bereichsumschaltung in Hochfrequenzempfängern Circuit arrangement for range switching in high-frequency receivers |
| 11/10/1999 | EP0955725A2 Differential amplifier |
| 11/10/1999 | EP0954904A1 Zero-delay slew-rate controlled output buffer |
| 11/10/1999 | CN1234649A Gain-changeable amplifier circuit |
| 11/10/1999 | CN1234648A Power amplifier |
| 11/10/1999 | CN1234647A Double-frequency-band amplifier |
| 11/09/1999 | US5983089 Slotline-mounted flip chip |
| 11/09/1999 | US5982236 High-frequency power amplifier |
| 11/09/1999 | US5982234 Low noise arrangement or an amplifier |
| 11/09/1999 | US5982233 Device and method for compensating phase distortion |
| 11/09/1999 | US5982232 Low noise, bandwidth compensated transimpedance amplifier |
| 11/09/1999 | US5982231 Multiple channel class D audio amplifier |
| 11/09/1999 | US5982230 Amplifier circuit |
| 11/09/1999 | US5982227 CMOS current source circuit |
| 11/09/1999 | US5982215 Analog signal transmission circuit |
| 11/09/1999 | US5982206 Transcurrent circuit and current-voltage transforming circuit using the transcurrent circuit |
| 11/09/1999 | US5982201 Low voltage current mirror and CTAT current source and method |
| 11/09/1999 | US5981936 Photo detector circuit having a current mirror circuit |
| 11/09/1999 | CA2024850C Amplifying with directly coupled, cascaded amplifiers |
| 11/04/1999 | WO1999056339A1 Microwave channelized bandpass filter having two channels |
| 11/04/1999 | WO1999046766A3 Optical read/write apparatus |
| 11/04/1999 | CA2321624A1 Microwave channelized bandpass filter having two channels |
| 11/03/1999 | EP0954095A2 Power amplifier |
| 11/03/1999 | EP0954094A1 Amplifier output stage with parasitic currents limiter |
| 11/03/1999 | EP0953232A1 Compensation of delay in linearization loop of power amplifier |
| 11/03/1999 | EP0812488B1 Integrated driver for half-bridge circuit |
| 11/03/1999 | EP0739549B1 Method and apparatus for calibrating a gain control circuit |
| 11/03/1999 | EP0683950A4 Efficient amplitude/phase modulation amplifier. |
| 11/03/1999 | EP0678225A4 An operational transconductance amplifier with matched outputs. |
| 11/02/1999 | US5978690 Reducing power consumption in low noise radiophone amplifiers |
| 11/02/1999 | US5978666 Slotline-mounted flip chip structures |
| 11/02/1999 | US5978487 Spectrum displaying device for audio device |
| 11/02/1999 | US5978241 Wide-linear range tunable transconductor using MOS |
| 11/02/1999 | US5977895 Waveform shaping circuit for function circuit and high order delta sigma modulator |
| 11/02/1999 | US5977834 Preamplifier system |
| 11/02/1999 | US5977828 Multiple-tail transconductance switchable gain amplifer |
| 11/02/1999 | US5977827 Circuit arrangement including a differential amplifier stage |
| 11/02/1999 | US5977823 Semiconductor amplifier circuit |
| 11/02/1999 | US5977818 Multi-input transistor circuit and multi-input transconductance circuit |
| 11/02/1999 | US5977760 Bipolar operational transconductance amplifier and output circuit used therefor |
| 11/02/1999 | CA2201624C A second generation low noise microwave voltage controlled oscillator |
| 11/02/1999 | CA2149928C Optical receiver with a high impedance preamplifier |
| 10/28/1999 | WO1999054994A1 Low voltage medium power class c power amplifier with precise gain control |
| 10/28/1999 | WO1999054993A1 Amplifier |
| 10/28/1999 | DE19910755A1 Linear current sensing circuit for motor controller |
| 10/27/1999 | EP0952666A2 Cascade amplifier using FETs |
| 10/27/1999 | EP0952644A2 Dynamic control for laser diode drivers |
| 10/27/1999 | EP0952455A1 High frequency track&hold full wave rectifier |
| 10/26/1999 | US5974041 Efficient parallel-stage power amplifier |
| 10/26/1999 | US5973569 Short-circuit protection and over-current modulation to maximize audio amplifier output power |
| 10/26/1999 | US5973568 Power amplifier output module for dual-mode digital systems |