| 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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| 01/25/2000 | US6018270 Low voltage RF amplifier and mixed with single bias block and method |
| 01/25/2000 | US6018268 High speed and high gain operational amplifier |
| 01/25/2000 | US6018266 Radio frequency system having reflective diode linearizer with balanced tunable impedance loads |
| 01/25/2000 | CA2189851C Voltage regulator |
| 01/20/2000 | WO2000003480A1 Distributed amplifier and method therefor |
| 01/20/2000 | WO2000003479A1 Arrangement and method relating to radio communication |
| 01/20/2000 | WO2000003476A1 Wide-bandwidth operational amplifier |
| 01/20/2000 | WO2000003474A2 Converter circuit and variable gain amplifier with temperature compensation |
| 01/20/2000 | DE19831561A1 Auxiliary direct (DC) voltage generating circuit using supply voltage for HF signal driving stage |
| 01/20/2000 | DE19830193A1 Broad band amplifier for the transmission of video signal through cable |
| 01/19/2000 | EP0973307A2 Distortion compensation system |
| 01/19/2000 | EP0972339A1 Power amplication system with intelligent control of amplifier modules |
| 01/18/2000 | US6016079 Power amplifier device |
| 01/18/2000 | US6016077 System for user programmable bandwidth of amplifier circuitry |
| 01/18/2000 | US6016076 Method and apparatus for microwave predistorter linearizer with electronic tuning |
| 01/18/2000 | CA2098906C A constant current and constant voltage regulating circuit for common-base or common-gate transistor devices |
| 01/13/2000 | WO2000002324A1 A predistorter |
| 01/13/2000 | WO2000002323A1 Apparatus and method for implementing a low-noise amplifier |
| 01/13/2000 | WO2000002308A1 Amplifier circuitry |
| 01/13/2000 | WO2000002307A1 Semiconductor amplifier circuit and system |
| 01/13/2000 | WO2000002306A1 Power amplifier |
| 01/12/2000 | EP0971478A1 Repeater amplification device in a cellular radio communication system and method of operation thereof |
| 01/12/2000 | EP0970561A1 Rail-to-rail operational amplifier |
| 01/12/2000 | EP0619927B1 Power amplifier linearization in a tdma mobile radio system |
| 01/11/2000 | US6014061 Front-end amplification circuit |
| 01/11/2000 | US6014060 Voltage supply circuit for amplifier |
| 01/11/2000 | US6014059 Power amplifier and method therein |
| 01/11/2000 | US6014056 Power amplifier circuit with low degradation in the event of breakdowns |
| 01/11/2000 | US6014053 Amplifier MOS biasing circuit for a avoiding latch-up |
| 01/06/2000 | WO2000001065A1 Predistortion technique for high power amplifiers |
| 01/06/2000 | WO2000001063A2 A variable gain amplifier using impedance network |
| 01/06/2000 | WO1999059241A3 A method of reducing distortion and noise of square-wave pulses, a circuit for generating minimally distorted pulses and use of method and circuit |
| 01/05/2000 | EP0969593A1 Signal processor |
| 01/05/2000 | EP0969344A2 Semiconductor integrated circuit including voltage follower circuit |
| 01/05/2000 | EP0968569A1 Power interface circuit for a tdma transmitter |
| 01/05/2000 | EP0968565A2 Pwm amplifier |
| 01/05/2000 | EP0585421B1 High dynamic range modulation independent feed forward amplifier network |
| 01/05/2000 | CN1048125C Multi-stage solid state amplifier that emulates tube distorbion |
| 01/05/2000 | CN1048123C Circuit of voltage limiter |
| 01/04/2000 | US6011446 RF/microwave oscillator having frequency-adjustable DC bias circuit |
| 01/04/2000 | US6011438 Push-pull wideband semiconductor amplifier |
| 01/04/2000 | US6011436 Voltage conversion circuit and differential difference amplifier |
| 01/04/2000 | US6011434 Feed-forward amplifier |
| 12/30/1999 | DE19827702A1 Amplifier circuit module for use in high frequency amplifier |
| 12/29/1999 | WO1999059242A3 A method of reducing distortion and noise of square-wave pulses, a circuit for generating minimally distorted pulses and use of method and circuit |
| 12/29/1999 | EP0967717A2 Predistortion control for power reduction |
| 12/29/1999 | EP0967602A1 A temperature/voltage compensation circuit |
| 12/28/1999 | US6009119 Adaptive power leveling of an RF transceiver utilizing information stored in non-volatile memory |
| 12/28/1999 | US6008698 Amplifier with dynamically adaptable supply current |
| 12/28/1999 | US6008697 Circuit arrangement comprising a power amplifier stage |
| 12/28/1999 | US6008696 Low noise amplifier with actively terminated input |
| 12/28/1999 | US6008694 Distributed amplifier and method therefor |
| 12/28/1999 | US6008679 Semiconductor integrated circuit and semiconductor input system |
| 12/28/1999 | US6008632 Constant-current power supply circuit and digital/analog converter using the same |
| 12/28/1999 | CA2189712C Variable gain amplifying device |
| 12/28/1999 | CA2188729C Bias controller for decreasing bias current supplied to amplifier without sacrifice of distortion |
| 12/23/1999 | WO1999066637A1 Circuit and methods for compensating for imperfections in amplification chains in a linc or other amplification system |
| 12/22/1999 | WO1999067879A1 Active operating point regulation for power amplifiers |
| 12/22/1999 | EP0966097A1 Feed-forward amplifier |
| 12/22/1999 | EP0966096A1 Method and apparatus for extending the dynamic range of a frequency mixer |
| 12/22/1999 | EP0966095A1 Apparatus and method for extending the dynamic range of a mixer using feed forward distortion reduction |
| 12/22/1999 | EP0965166A1 Flexible current control in power amplifiers |
| 12/22/1999 | CN1239352A Method for adaptively controlling amplifier linearization devices |
| 12/22/1999 | CA2302692A1 Active operating point regulation for power amplifiers |
| 12/21/1999 | US6005441 Amplifying circuit |
| 12/21/1999 | US6005440 Operational amplifier |
| 12/21/1999 | US6005431 High band width, high gain offset compensating amplifier system for a read channel |
| 12/21/1999 | US6005375 Amplifier using a single polarity power supply |
| 12/15/1999 | EP0964511A1 Low-noise amplifier |
| 12/14/1999 | US6002860 High frequency noise and impedance matched integrated circuits |
| 12/14/1999 | US6002301 Transistor and power amplifier |
| 12/14/1999 | US6002300 Control system for the linearization of an amplifier circuit |
| 12/14/1999 | US6002299 High-order multipath operational amplifier with dynamic offset reduction, controlled saturation current limiting, and current feedback for enhanced conditional stability |
| 12/14/1999 | US6002291 Cubic type temperature function generator with adjustable parameters |
| 12/14/1999 | US6002288 Current limiting circuit and method that may be shared among different circuitry |
| 12/09/1999 | WO1999063656A1 Low noise amplifier |
| 12/09/1999 | DE19822814A1 Electronic signal amplification method especially for battery circuit in automotive application |
| 12/08/1999 | EP0963037A1 Amplifier and method of cancelling distortion by combining hyperbolic tangent and hyperbolic sine transfer functions |
| 12/08/1999 | EP0963036A2 Power amplifying circuit and automatic power control method |
| 12/08/1999 | EP0962120A1 High-fidelity and high-efficiency analog amplifier combined with digital amplifier |
| 12/08/1999 | EP0962051A1 Method of biasing an mos ic to operate at the zero temperature coefficient point |
| 12/08/1999 | EP0962048A1 Series powered, parallel output radio frequency generator |
| 12/08/1999 | EP0916181A4 Voltage to current converter for high frequency applications |
| 12/08/1999 | CN1237826A Improved feedforward multicarrier linear RF power amplifier |
| 12/08/1999 | CN1237825A Amplifier and method of canceling distortion by combining hyperbolic tangent and hyperbolic sine transfer functions |
| 12/07/1999 | US5999718 Linearizer method and apparatus |
| 12/07/1999 | US5999059 Wideband CATV amplifier with microprocessor-based slope and gain control |
| 12/07/1999 | US5999058 Microwave amplifier |
| 12/07/1999 | US5999056 Variable gain amplifier using impedance network |
| 12/07/1999 | US5999050 Differential amplifier, an integrated circuit, and a telephone |
| 12/07/1999 | US5999049 Differential amplifier circuit having non-linerity cancellation feature |
| 12/07/1999 | US5999048 Method and apparatus for spread spectrum pilot extraction for RF amplifiers |
| 12/07/1999 | US5999047 Linearizer for use with RF power amplifiers |
| 12/07/1999 | US5999046 Power combiner for use in a radio frequency system and a method of constructing a power combiner |
| 12/07/1999 | US5999045 Amplification circuit which includes an input-current compensation device |
| 12/02/1999 | WO1999046611A3 Power supply circuit |
| 12/01/1999 | EP0961409A1 Compensations of timing errors caused by dynamic thermal mismatches |
| 12/01/1999 | EP0961403A2 Integrated amplifying circuit comprising temperature compensation |
| 12/01/1999 | EP0961401A1 A low voltage buffer amplifier |
| 12/01/1999 | EP0928515A4 Adaptive digital predistortion linearization and feed-forward correction of rf power amplifier |