| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
|---|
| 08/16/2001 | US20010013811 Grounded emitter amplifier and a radio communication device using the same |
| 08/16/2001 | US20010013810 Differential amplifier circuit |
| 08/16/2001 | US20010013808 Mute circuit and digital audio amplifier circuit |
| 08/16/2001 | US20010013794 Buffer circuit |
| 08/16/2001 | US20010013573 Photosensor-amplifier device |
| 08/16/2001 | EP1124327A1 Differential amplifier with gain substantially independent of temperature |
| 08/16/2001 | EP1124326A1 An operational amplifier with high gain and sysmmetrical output-current capabilty |
| 08/16/2001 | EP1124325A2 High frequency push-pull amplifier |
| 08/16/2001 | DE10005805A1 High frequency push-pull amplifier has first transforming balancing transformer with low permeability ferrite core at symmetrical output, second transformer with high permeability core |
| 08/15/2001 | CN1308788A Semiconductor amplifier circuit and system |
| 08/15/2001 | CN1069765C Voltage balancing circuit |
| 08/14/2001 | US6275678 Method and apparatus for determining an operating point of a non-linear amplifier of a communication channel |
| 08/14/2001 | US6275541 Digital receiver circuit |
| 08/14/2001 | US6275479 Multiplexed power amplifiers for satellite communication system |
| 08/14/2001 | US6275330 Apparatus and method for controlling a wavelength-multiplex optical amplifier |
| 08/14/2001 | US6275114 Impedance matched CMOS transimpedance amplifier for high-speed fiber optic communications |
| 08/14/2001 | US6275113 High frequency tuning amplifier for buffer |
| 08/14/2001 | US6275112 Efficient microphone bias amplifier with high output voltage/current capability and excellent PSRR |
| 08/14/2001 | US6275111 Power amplifier having two-dimensional FET array |
| 08/14/2001 | US6275110 Wide-band linearization technique |
| 08/14/2001 | US6275109 Low noise microphone preamplifier |
| 08/14/2001 | US6275108 Circuit and method for control of amplifier operating angle |
| 08/14/2001 | US6275107 Differential amplifier circuit and pull up-type differential driver |
| 08/14/2001 | US6275106 Spectral distortion monitor for controlling pre-distortion and feed-forward linearization of rf power amplifier |
| 08/14/2001 | US6275102 Distortion correction loop for amplifier circuits |
| 08/14/2001 | US6275095 Semiconductor amplifier circuit |
| 08/14/2001 | US6275073 Differential input circuit |
| 08/14/2001 | CA2257954C Power delivery system and method of controlling the power delivery system for use in a radio frequency system |
| 08/14/2001 | CA2254456C A modularly-partitioned feedforward multi-linear rf power amplifier |
| 08/09/2001 | WO2001058012A2 High-efficiency power modulators |
| 08/09/2001 | WO2001058010A2 Devices and methods for calibrating amplifier stages and for compensating for errors in amplifier stages of series-connected components |
| 08/09/2001 | US20010012370 Sound enhancement system |
| 08/09/2001 | US20010011926 Multiple-band amplifier |
| 08/09/2001 | US20010011925 Low-frequency, high-gain amplifier with high DC-offset voltage tolerance |
| 08/09/2001 | US20010011924 Linear amplifier having discrete resonant circuit elements and providing near-constant efficiency across a wide range of output power |
| 08/09/2001 | US20010011923 Circuit, including feedback, for reducing DC-offset and noise produced by an amplifier |
| 08/09/2001 | US20010011922 Electronic circuit |
| 08/09/2001 | US20010011911 Input buffer circuit for semiconductor device |
| 08/09/2001 | DE10004996A1 Apparatus for self calibration of folding analog to digital convertors |
| 08/08/2001 | EP1122923A2 Line driver with transformer coupling and impedance control |
| 08/08/2001 | EP1122883A2 Circuit for linearizing the power control profile of a BiCMOS power amplifier |
| 08/08/2001 | EP1122882A2 Amplifier circuit |
| 08/08/2001 | EP1122881A1 Video preamplifier |
| 08/08/2001 | EP0944953B1 Intermodulation compensation in multi-channel amplifiers |
| 08/08/2001 | EP0940006B1 Method and apparatus for routing signals through a cable television signal distribution amplifier |
| 08/08/2001 | EP0908006A4 Bias circuit for a power amplifier |
| 08/08/2001 | CN1307745A Set-up method for linearising circuit |
| 08/08/2001 | CN1069477C Parallel untuned video IF amplifiers and TV seceiver with the same |
| 08/07/2001 | US6271728 Dual polarization amplifier |
| 08/07/2001 | US6271725 Low voltage bipolar transconductor circuit with extended dynamic range |
| 08/07/2001 | US6271721 Common-base transistor amplifiers with linearity augmentation |
| 08/07/2001 | US6271695 Precision low-noise current mode biasing scheme for BJT with inductive emitter degeneration |
| 08/07/2001 | US6271691 Chopper type voltage comparison circuit |
| 08/07/2001 | US6271688 MOS transconductor with broad trimming range |
| 08/07/2001 | CA2239343C A matching circuit and a method for matching a transistor circuit |
| 08/02/2001 | WO2001056171A2 Switch assembly with a multi-pole switch for combining amplified rf signals to a single rf signal |
| 08/02/2001 | WO2001056164A1 Programmable electronic trim capacitor |
| 08/02/2001 | WO2001056149A2 Low distortion driving amplifier for integrated filters |
| 08/02/2001 | WO2001056148A1 Method and apparatus for increasing the bandwidth, and reducing the size, of the dc feed network for wideband rf amplifiers |
| 08/02/2001 | WO2001056037A1 A switched-opamp technique for low-voltage switched-capacitor circuits |
| 08/02/2001 | US20010010482 Circuit for amplifying and outputting audio signals |
| 08/02/2001 | US20010010481 Video preamplifier |
| 08/02/2001 | DE10064515A1 Measurement signal output device for testing integrated circuit, has electro-optical probe which is connected to input/output unit by cables, and signal measurement unit connected to input/output unit by connector |
| 08/02/2001 | DE10002850A1 Schaltung zur Umsetzung eines Paars aus differenziellen Signalen in ein Eintaktsignal Circuit for converting a pair of differential signals in a single-ended |
| 08/02/2001 | DE10001371A1 Integrierte Schaltung mit einem Differenzverstärker An integrated circuit with a differential amplifier |
| 08/01/2001 | EP1120906A2 Circuit for converting a pair of difference signals into a single-ended output signal |
| 08/01/2001 | EP1120904A2 Power amplifier using upstream signal information |
| 08/01/2001 | EP1120902A2 Transmitter and mobile station |
| 08/01/2001 | EP1119983A1 Dual forward and reverse test points for amplifiers |
| 08/01/2001 | EP1119918A1 Transmission power amplifier for a mobile telephone |
| 08/01/2001 | EP1119907A1 Method of and arrangement for converting voltage to current |
| 08/01/2001 | EP1119905A1 In-line, unbalanced amplifier, pre-distortion circuit |
| 08/01/2001 | EP1119904A1 Circuit arrangement for stabilizing the operating point of a transistor |
| 08/01/2001 | EP0929934A4 Merged transconductance amplifier |
| 07/31/2001 | US6268842 Thin film transistor circuit and semiconductor display device using the same |
| 07/31/2001 | US6268772 Slew rate controlled power amplifier |
| 07/31/2001 | US6268771 Amplifying device |
| 07/31/2001 | US6268770 Wide bandwidth, current sharing, MOSFET audio power amplifier with multiple feedback loops |
| 07/31/2001 | US6268769 Operational amplifier |
| 07/31/2001 | US6268734 Operational amplifier input offset voltage and input bias current test circuit |
| 07/31/2001 | US6268632 Field effect transistor and power amplifier including the same |
| 07/26/2001 | WO2001054271A1 A switchless high efficiency amplifier |
| 07/26/2001 | WO2001054270A1 Amplifier or filter circuit in switched capacitor circuit logic and method for amplifying or filtering signals |
| 07/26/2001 | US20010009390 OW current amplifier circuit with protection against static electricity |
| 07/26/2001 | US20010009389 Operational amplifier designed to have increased output range |
| 07/26/2001 | US20010009357 Method and apparatus for improved transition from pulse width modulation to linear control |
| 07/26/2001 | DE10001151A1 Verfahren und Vorrichtung zur Linearisierung eines Hochfrequenz-Hochleistungsverstärkers Method and device for the linearization of an RF high power amplifier |
| 07/25/2001 | EP1119111A1 Isolator with built-in power amplifier |
| 07/25/2001 | EP1119100A2 Amplifiers |
| 07/25/2001 | EP1118215A1 Apparatus for providing television receiver alignment functions |
| 07/25/2001 | EP1118211A1 Video amplifier with integrated dc level shifting |
| 07/25/2001 | EP1118176A1 In-line predistorter for linearization of electronic and optical signals |
| 07/25/2001 | EP0840950A4 Field effect transistor cable television line amplifier |
| 07/25/2001 | EP0801726B1 Circuit for setting the operating point of an opto-electronic component |
| 07/25/2001 | CN1305660A Method of reducing distortion and noise of square-wave pulses, circuit for generating minimally distorted pulses and use of method and circuit |
| 07/25/2001 | CN1305659A Method of reducing distortion and noise of square-wave pulses, circuit for generating minimally distorted pulses and use of methode and circuit |
| 07/24/2001 | USRE37291 Operational amplifier switchable to different configurations |
| 07/24/2001 | US6266425 Audio amplifier circuit and audio device using the circuit |
| 07/24/2001 | US6265944 Fully integrated broadband RF voltage amplifier with enhanced voltage gain and method |
| 07/24/2001 | US6265941 Balanced differential amplifier having common mode feedback with kick-start |