| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 12/30/1999 | DE19827702A1 Amplifier circuit module for use in high frequency amplifier |
| 12/29/1999 | WO1999067893A1 Dual band cellular phone with two power amplifiers and power control circuit therefor |
| 12/29/1999 | WO1999067892A1 Dual band cellular phone with two power amplifiers and a current detector for monitoring the consumed power |
| 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 | EP0966750A1 Device, notably for controlling a travelling-wave tube |
| 12/29/1999 | EP0932941A4 Slotline-mounted flip chip structures |
| 12/29/1999 | EP0697150B1 Adjustable resistance device with control circuit |
| 12/29/1999 | CN1239860A Constant power driving method for loudspeaker |
| 12/29/1999 | CN1239801A Device for anplifying and converting current signals into voltage signals |
| 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 | CA2188729C Bias controller for decreasing bias current supplied to amplifier without sacrifice of distortion |
| 12/28/1999 | CA2176627C Temperature compensated apd detector bias and transimpedance amplifier circuitry for laser range finders |
| 12/28/1999 | CA2129854C Parallel untuned video if amplifiers supplied signals from tv 1st detector via respective input filters |
| 12/28/1999 | CA2120233C Using d-c feedback with on-chip filtering to balance i-f drive to second detector in monolithic ic |
| 12/22/1999 | WO1999067879A1 Active operating point regulation for power amplifiers |
| 12/22/1999 | EP0966099A1 A power amplifier system using transform combiners |
| 12/22/1999 | EP0966098A1 A power sharing amplifier with transform combining networks |
| 12/22/1999 | EP0965980A1 Device for amplifying and converting current signals into voltage signals |
| 12/22/1999 | EP0885468A4 Slotline-to-coplanar waveguide transition |
| 12/22/1999 | CN2355497Y High reliability power amplifier |
| 12/22/1999 | CN1239602A Class D amplifier |
| 12/22/1999 | CA2302692A1 Active operating point regulation for power amplifiers |
| 12/21/1999 | US6006111 Self-balancing matrix amplifier |
| 12/21/1999 | US6005442 Divider/combiner |
| 12/21/1999 | US6005441 Amplifying circuit |
| 12/21/1999 | US6005440 Operational amplifier |
| 12/21/1999 | US6005439 Unity gain signal amplifier |
| 12/21/1999 | US6005437 Bridged driving amplifier and a telecommunication device |
| 12/21/1999 | US6005375 Amplifier using a single polarity power supply |
| 12/21/1999 | US6005238 Hybrid sensor pixel architecture with linearization circuit |
| 12/21/1999 | CA2134256C Apparatus and method for referencing an optical receiver |
| 12/16/1999 | DE19824768A1 Power amplifier especially gradient amplifier for magnetic resonance tomography |
| 12/16/1999 | DE19812849A1 Automatic offset voltage equalizing circuit for differential amplifier |
| 12/16/1999 | DE19700404A1 Buffering or differencing amplifier for signal transmission |
| 12/15/1999 | EP0964539A2 Receiver capable of outputting a high quality signal without regard to an input signal level |
| 12/15/1999 | EP0964511A1 Low-noise amplifier |
| 12/15/1999 | EP0963624A1 Device and process for telecommunication |
| 12/15/1999 | CN1238862A Multiple preamplifier circuit for TV. tuner |
| 12/15/1999 | CN1238595A Differential amplifier circuit |
| 12/14/1999 | US6002860 High frequency noise and impedance matched integrated circuits |
| 12/14/1999 | US6002301 Transistor and power amplifier |
| 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 | US6002296 Filter circuit with an intermittent constant current with constant period |
| 12/14/1999 | US6002294 Start circuit for a self-biasing constant current circuit, constant current circuit and operational amplifier using the same |
| 12/14/1999 | US6002291 Cubic type temperature function generator with adjustable parameters |
| 12/14/1999 | US6002276 Stable output bias current circuitry and method for low-impedance CMOS output stage |
| 12/09/1999 | WO1999063658A1 Dual band transmitter |
| 12/09/1999 | WO1999063657A1 Linear quad variable gain amplifier and method for implementing same |
| 12/09/1999 | WO1999063656A1 Low noise amplifier |
| 12/09/1999 | DE19824767A1 Control signals generation method for power amplifier especially gradient amplifier of nuclear magnetic resonance (NMR) tomograph |
| 12/08/1999 | EP0963038A2 SRPP circuit having wide frequency range |
| 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 | EP0962049A1 A reconstruction filter for eliminating the switching residue in a switched system or similar |
| 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 | EP0857372B1 Amplifier circuit |
| 12/08/1999 | EP0544917B1 Capacitive load driving circuit |
| 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 |
| 12/08/1999 | CN1237824A Buffer amplifying return circuit |
| 12/07/1999 | US5999059 Wideband CATV amplifier with microprocessor-based slope and gain control |
| 12/07/1999 | US5999058 Microwave amplifier |
| 12/07/1999 | US5999055 Tunable CMOS Operational Transconductance Amplifier |
| 12/07/1999 | US5999054 Differential amplifier circuit |
| 12/07/1999 | US5999052 High speed, fine-resolution gain programmable amplifier |
| 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 | 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 |
| 12/07/1999 | US5999044 Differential driver having multiple output voltage ranges |
| 12/07/1999 | US5999028 Differential circuits with adjustable propagation timing |
| 12/02/1999 | WO1999062192A1 System and method for implementing a hybrid waveguide device |
| 12/02/1999 | WO1999046854A8 A comb linear amplifier combiner (clac) |
| 12/02/1999 | WO1999046611A3 Power supply circuit |
| 12/02/1999 | DE19821907A1 Electronic amplifier for mobile radio device |
| 12/01/1999 | EP0961409A1 Compensations of timing errors caused by dynamic thermal mismatches |
| 12/01/1999 | EP0961402A2 A transmitter |
| 12/01/1999 | EP0961401A1 A low voltage buffer amplifier |
| 12/01/1999 | EP0961400A2 Buffer amplifier |
| 12/01/1999 | CN1237287A Differential amplifier, integrated circuit, and telephone |
| 11/30/1999 | US5995814 Single-stage dual-band low-noise amplifier for use in a wireless communication system receiver |
| 11/30/1999 | US5994973 PWM driver |
| 11/30/1999 | US5994965 Silicon carbide high frequency high power amplifier |
| 11/30/1999 | US5994963 Amplifier circuit and multistage amplifier circuit |
| 11/30/1999 | US5994962 Differential amplifier device |
| 11/30/1999 | US5994961 Temperature compensated decibel linear variable gain amplifier |
| 11/30/1999 | US5994960 High speed switched op-amp for low supply voltage applications |
| 11/30/1999 | US5994959 Linearized amplifier core |
| 11/30/1999 | US5994955 Driver amplifiers with low noise standby mode characteristics |
| 11/30/1999 | US5994942 Buffer circuit with wide dynamic range |
| 11/30/1999 | US5994941 Operating voltage point compensation circuit for a transistorized circuit |
| 11/30/1999 | US5994927 Circuit for comparison of signal voltage with reference voltage |
| 11/30/1999 | US5994926 Circuit and method for programmably changing the transconductance of a transconductor circuit |
| 11/30/1999 | US5994856 Method and apparatus for improved transition from pulse width modulation to linear control |