| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
|---|
| 08/29/2007 | EP1825593A1 Broadband high efficiency traveling wave tube amplifier system |
| 08/29/2007 | EP1825592A1 A power multiplier apparatus and method |
| 08/29/2007 | EP1579573B1 Apparatus and method for safely handling asynchronous shutdown of pulsewidth modulated output |
| 08/29/2007 | EP1391046B1 Non-linear transistor circuits with thermal stability |
| 08/29/2007 | CN200941599Y RF pre-distovtion aircuit |
| 08/29/2007 | CN101027836A Improved linear power amplifier |
| 08/29/2007 | CN101027817A Blind signal separation using I and Q components |
| 08/29/2007 | CN101026361A Compensated operational amplification circuit and related method |
| 08/29/2007 | CN101026360A Radio frequency power amplifying module with hetero junction bipolar transistor |
| 08/29/2007 | CN101026359A 运算放大器 Operational Amplifier |
| 08/29/2007 | CN101026358A Offset elimination amplifier and its control method, and display device using same |
| 08/29/2007 | CN101026357A Cascode and serial low-noise amplifier implemented by single-end input and differential output |
| 08/28/2007 | US7263541 Multi-dimensional hybrid and transpose form finite impulse response filters |
| 08/28/2007 | US7263469 Multiple RF signal switching apparatus |
| 08/28/2007 | US7263136 Predistortion modulator |
| 08/28/2007 | US7263135 Transmitting method and transmitter apparatus |
| 08/28/2007 | US7262668 Semiconductor amplifier |
| 08/28/2007 | US7262667 Radio frequency power amplifier |
| 08/28/2007 | US7262666 Amplifier circuit having an extended Wilson current-mirror self-bias boosting circuit |
| 08/28/2007 | US7262656 Circuit for parallel operation of Doherty amplifiers |
| 08/28/2007 | US7262655 High bandwidth resistor |
| 08/28/2007 | US7262654 Circuits and methods for minimizing chopping artifacts at the output of a chopper-stabilized operational amplifier |
| 08/23/2007 | WO2007094241A1 Transmission circuit |
| 08/23/2007 | US20070194850 Dynamically compensated operational amplifier |
| 08/23/2007 | US20070194848 Variable Gain Amplifier |
| 08/23/2007 | US20070194844 Switched capacitor amplifier circuit and method for operating a switched capacitor amplifier circuit |
| 08/23/2007 | US20070194767 Step-down circuit with stabilized output voltage |
| 08/22/2007 | EP1820315A1 Method for controlling an eer power amplifier for digital transmission |
| 08/22/2007 | EP1820269A2 Current limiting circuit for rf power amplifier |
| 08/22/2007 | EP1820268A2 Voltage clamp for improved transient performance of a collector voltage controlled power amplifier |
| 08/22/2007 | EP1820267A1 Controllable power operational transconductance amplifier |
| 08/22/2007 | EP1129556B1 Method and apparatus for reducing distortion of digital data |
| 08/22/2007 | CN2938643Y Digital audio-video signal line extending amplifier |
| 08/22/2007 | CN101023579A Peak voltage protection circuit and method |
| 08/22/2007 | CN101023578A Distortion compensating amplifier apparatus |
| 08/22/2007 | CN101022276A Distortion compensating apparatus and method |
| 08/22/2007 | CN101022267A Distortion compensating apparatus and method |
| 08/22/2007 | CN101022266A 功率放大器 PA |
| 08/21/2007 | US7260377 Variable-gain low noise amplifier for digital terrestrial applications |
| 08/21/2007 | US7260375 Frequency agile RF circuit |
| 08/21/2007 | US7259630 Elimination of peak clipping and improved efficiency for RF power amplifiers with a predistorter |
| 08/21/2007 | US7259629 Variable gain amplifier with improved control characteristics linearity |
| 08/21/2007 | US7259623 RF generator with reduced size and weight |
| 08/21/2007 | US7259622 RF generator with phase controlled MOSFETs |
| 08/21/2007 | US7259621 Distortion compensating device and power amplifying device with distortion compensating function |
| 08/21/2007 | US7259620 Wide dynamic range switching variable gain amplifier and control |
| 08/21/2007 | US7259619 Amplifier circuit with reduced power-on transients and method thereof |
| 08/21/2007 | US7259618 Systems and methods for load detection and correction in a digital amplifier |
| 08/21/2007 | US7259616 Method for single-ended offset compensation of an operational amplifier |
| 08/16/2007 | WO2007092345A1 Multi-mode selectable modulation architecture calibration and power control apparatus, system and method for radio frequency power amplifier |
| 08/16/2007 | WO2007092148A2 Power amplifier with close-loop adaptive voltage supply |
| 08/16/2007 | WO2007091212A1 Power amplifier |
| 08/16/2007 | WO2007091134A2 Method and system for transmitter envelope delay calibration |
| 08/16/2007 | WO2007073341A3 Digital feedback to improve the sound reproduction of an electro-dynamic loudspeaker |
| 08/16/2007 | US20070188240 Ultra-wideband constant gain cmos amplifier |
| 08/16/2007 | US20070188232 Wideband CMOS gain stage |
| 08/16/2007 | US20070188226 Power amplifier input structure having a differential output |
| 08/16/2007 | US20070188225 Distortion compensating apparatus and method |
| 08/16/2007 | US20070188224 CDMA power amplifier design for low and high power modes |
| 08/16/2007 | US20070188223 Operational amplifier |
| 08/16/2007 | US20070188215 A-AB transconductor |
| 08/16/2007 | DE102005058039B4 Schaltungsanordnung und Verfahren zur Verstärkung eines elektrischen Eingangssignals Circuit arrangement and method for amplifying an electrical input signal |
| 08/15/2007 | EP1819041A1 Self-calibrating multi-port circuit and method |
| 08/15/2007 | EP1819040A1 Distortion compensating apparatus and method |
| 08/15/2007 | EP1819039A1 Distortion compensating apparatus and method |
| 08/15/2007 | EP1819038A1 Signal take-out circuit and distortion compensation amplifier comprising it |
| 08/15/2007 | EP1488510B1 A-ab transconductor |
| 08/15/2007 | CN2935629Y RF fundamental wave canceling circuit |
| 08/15/2007 | CN1332506C Amplifying circuit |
| 08/15/2007 | CN101019395A Distortion compensating device |
| 08/15/2007 | CN101019312A Buffer amplifier, driver IC, and display apparatus using that driver IC |
| 08/15/2007 | CN101019311A A method and apparatus for pre-conditioning an electrical signal |
| 08/15/2007 | CN101019310A 线性化电路 Linearization circuit |
| 08/15/2007 | CN101019309A Method and system for stabilizing an amplifier |
| 08/15/2007 | CN101018042A Ultra-high frequency low noise amplifier |
| 08/15/2007 | CN101018041A Frequency switching circuit for restraining the D power amplifier POP sound and its method |
| 08/15/2007 | CN101018040A Amplifier circuit |
| 08/14/2007 | US7257382 High frequency amplifier circuit permitting variable gain control |
| 08/14/2007 | US7257381 Self-tuned millimeter wave RF transceiver module |
| 08/14/2007 | US7256653 High-frequency power amplifier and communication apparatus |
| 08/14/2007 | US7256648 Variable feedback circuits and methods |
| 08/09/2007 | WO2007088363A1 Power amplifier with digital pre-distorsion |
| 08/09/2007 | WO2007087812A1 Audio amplifier with speaker protection against transients |
| 08/09/2007 | US20070184790 Control of a power amplifier for reducing power consumption in a transceiver |
| 08/09/2007 | US20070184789 Cartesian loop transmitter and method of adjusting an output level of such transmitter |
| 08/09/2007 | US20070183530 Transmission device and radio communication device |
| 08/09/2007 | US20070182523 Temperature compensation attenuator |
| 08/09/2007 | US20070182491 Wideband amplifying circuit having large degree of freedom in bias setting |
| 08/09/2007 | US20070182486 Systems and methods for over-current protection |
| 08/09/2007 | US20070182485 Predistorter for Linearization of Power Amplifier |
| 08/09/2007 | US20070182484 Adaptive predistortion method and arrangement |
| 08/09/2007 | US20070182482 Technique to improve the gain and signal to noise ratio in CMOS switched capacitor amplifiers |
| 08/08/2007 | EP1816762A1 Optical receiver |
| 08/08/2007 | EP1816742A2 Differential amplifier and radio system with differential amplifier |
| 08/08/2007 | EP1815593A1 Power amplifier for amplifying high-frequency (h.f.) signals |
| 08/08/2007 | EP1815592A1 Method and system for determining the amplitude and/or phase of the output signal of a transmission link according to the amplitude of the input signal |
| 08/08/2007 | EP1815591A1 Tunable low noise amplifier |
| 08/08/2007 | EP1815590A2 Transmit signal generator and method |
| 08/08/2007 | EP1512221A4 Power amplifying system with supply and bias enhancements |
| 08/08/2007 | CN101015121A 失真补偿电路 Distortion compensating circuit |