| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 01/06/2005 | US20050001681 Low supply voltage and self-biased high speed receiver |
| 01/06/2005 | US20050001604 Reference voltage generator |
| 01/06/2005 | US20050001579 Ultra-fast precision motor with X, Y and Theta motion and ultra-fast optical decoding and absolute position detector |
| 01/06/2005 | US20050001150 Light-receiving circuit that protects breakdown of the avalanche photodiode by the photo current generated thereby |
| 01/06/2005 | CA2531041A1 Integrated power amplifier circuit |
| 01/06/2005 | CA2531038A1 Integrated power amplifier circuit |
| 01/06/2005 | CA2531018A1 Integrated power amplifier circuit |
| 01/06/2005 | CA2531013A1 Integrated power amplifier circuit |
| 01/05/2005 | EP1494361A1 Communication apparatus |
| 01/05/2005 | EP1494351A1 Method and corresponding circuit structure to correlate the transconductance of transistors of different type |
| 01/05/2005 | EP1494350A2 High frequency amplifier circuit and mobile communication terminal using the same |
| 01/05/2005 | EP1433236A4 Power supply regulation and protection circuit for audio power amplifier |
| 01/05/2005 | EP1430596B1 Temperature-stabilised amplifier circuit |
| 01/05/2005 | DE10347721A1 Leistungsverstärkermodul vom Time-Division-Duplexing-Typ Power amplifier module from the time-division duplexing type |
| 01/05/2005 | CN2669480Y Power amplifier infrared matrix regulating device |
| 01/05/2005 | CN1561573A 转换功率放大器 Conversion PA |
| 01/05/2005 | CN1561572A Self-boosting circuit for a power amplifier |
| 01/05/2005 | CN1183663C 高频放大器 High-frequency amplifier |
| 01/05/2005 | CN1183405C Operational amplifying circuit, driving circui and driving method |
| 01/04/2005 | US6839549 System and method of RF power amplification |
| 01/04/2005 | US6838944 Receiver system with electrically tuned integrated amplifier and method |
| 01/04/2005 | US6838943 Input follower system and method |
| 01/04/2005 | US6838942 Efficient class-G amplifier with wide output voltage swing |
| 01/04/2005 | US6838941 Multi-band power amplifier |
| 01/04/2005 | US6838940 High frequency power amplifier circuit |
| 01/04/2005 | US6838939 Amplifier apparatus, method, and system |
| 01/04/2005 | US6838938 Communication system and arrangements comprising such a communication system |
| 01/04/2005 | US6838937 Method and system for implementing autonomous automatic gain control in a low noise broadband distribution amplifier |
| 01/04/2005 | US6838936 Low-noise amplifier device having negative feedback via a controlled current source, and method of using the amplifier device |
| 01/04/2005 | US6838935 Signal amplifier |
| 01/04/2005 | US6838933 Low noise amplifier with fixed loss bypass |
| 01/04/2005 | US6838932 Power amplifier capable of adjusting operating point |
| 01/04/2005 | US6838931 Power amplifier circuit and method using bandlimited signal component estimates |
| 01/04/2005 | US6838930 Switched capacitor amplifier with high throughput architecture |
| 01/04/2005 | US6838829 Depressed collector for electron beams |
| 01/04/2005 | US6838654 Photodetection system and circuit for amplification |
| 12/30/2004 | US20040266381 Method and apparatus for DC offset control |
| 12/30/2004 | US20040266368 Power control for a transmitter |
| 12/30/2004 | US20040266366 Multi-mode amplifier system |
| 12/30/2004 | US20040266365 Transmitter |
| 12/30/2004 | US20040264527 Laser power control circuit |
| 12/30/2004 | US20040264416 Communication system and method for improving efficiency and linearity |
| 12/30/2004 | US20040263504 Display control circuit |
| 12/30/2004 | US20040263376 Comparator, sample-and-hold circuit, differential amplifier, two-stage amplifier, and analog-to-digital converter |
| 12/30/2004 | US20040263258 Improved 2-stage large bandwidth amplifier using diodes in the parallel feedback structure |
| 12/30/2004 | US20040263257 Method to reduce unwanted oscillations in high speed, high gain or transimpedance amplifiers |
| 12/30/2004 | US20040263256 High frequency power amplifier circuit, high frequency power amplifier electronic component and method thereof |
| 12/30/2004 | US20040263255 Power amplifier, power distributor, and power combiner |
| 12/30/2004 | US20040263254 High frequency power amplifier circuit and radio communication system |
| 12/30/2004 | US20040263253 Apparatus, amplifier, system and method for receiver equalization |
| 12/30/2004 | US20040263252 Output stage, amplifier and associated method for limiting an amplifier output |
| 12/30/2004 | US20040263251 Wideband amplifier |
| 12/30/2004 | US20040263250 Circuit arrangement having a transimpedance amplifier connected to a current limiter circuit |
| 12/30/2004 | US20040263248 Integrated power amplifier circuit |
| 12/30/2004 | US20040263247 Integrated power amplifier circuit |
| 12/30/2004 | US20040263246 Multi-mode multi-amplifier architecture |
| 12/30/2004 | US20040263245 Polar and linear amplifier system |
| 12/30/2004 | US20040263244 Power amplifier |
| 12/30/2004 | US20040263243 BTL amplifier capable of providing stability of offset compensation |
| 12/30/2004 | US20040263233 Low voltage circuit for interfacing with high voltage analog signals |
| 12/30/2004 | US20040263230 Comparing circuit and offset compensating apparatus |
| 12/30/2004 | DE10326581A1 Device for emulating acoustic characteristics of valve power amplifiers e.g. for electric guitar, is provided with discrete modules for emulation of acoustic characteristics |
| 12/30/2004 | DE102004004609A1 Verstärker mit fester Eingangsimpedanz, betrieben in verschiedenen Verstärkungsmodi Amplifier with a fixed input impedance, operated in different gain modes |
| 12/29/2004 | WO2004114519A1 Apparatus and method to provide power amplification |
| 12/29/2004 | WO2004114518A1 Cartesian loop transmitter and method of adjusting an output level of such transmitter |
| 12/29/2004 | WO2004114517A1 Power amplification device |
| 12/29/2004 | WO2004114516A1 Power control for a transmitter |
| 12/29/2004 | WO2004079897A3 High efficiency emitter for incandescent light sources |
| 12/29/2004 | WO2004064249A3 Cathode-coupled pentode valve amplifier with servo offset controlled push-pull output stage |
| 12/29/2004 | EP1492293A1 Emission of a signal with reduced peaks and of an associated instruction signal |
| 12/29/2004 | EP1492229A1 Polar and linear amplifier system |
| 12/29/2004 | EP1492228A1 Multi-mode multi-amplifier architecture |
| 12/29/2004 | EP1492227A1 Multi-mode amplifier system |
| 12/29/2004 | EP1491014A1 System and method for compensating line losses over a digital visual interface (dvi) link |
| 12/29/2004 | EP1490966A2 Adjustable gain control system and method thereof |
| 12/29/2004 | EP1490965A2 Method of measuring microwave power and device for carrying out said method |
| 12/29/2004 | EP1490964A1 Power amplifier array with same type predistortion amplifier |
| 12/29/2004 | EP1490907A1 Power amplifier device |
| 12/29/2004 | CN1559089A Optoelectronic sensor |
| 12/29/2004 | CN1558551A Base frequency shifting feedback controller |
| 12/29/2004 | CN1182747C Circuit with effective generation of low-power radio frequency signal |
| 12/29/2004 | CN1182701C Display driver apparatus |
| 12/29/2004 | CN1182621C Radio-frequency signal output module with radio-frequency power amplifier and isolation elements |
| 12/28/2004 | US6836517 Distortion compensating apparatus |
| 12/28/2004 | US6836186 AB class amplifier for controlling quiescent current |
| 12/28/2004 | US6836185 High-speed electro-optical modulator drivers and method |
| 12/28/2004 | US6836184 Network amplifier with microprocessor control |
| 12/28/2004 | US6836182 Nested transimpedance amplifier |
| 12/28/2004 | US6836155 Current sense amplifier |
| 12/23/2004 | WO2004112425A1 Audio amplifier with local interface system |
| 12/23/2004 | WO2004112247A1 Logic circuit having suppressed leak current to differential circuit |
| 12/23/2004 | WO2004112244A1 High-frequency amplifier |
| 12/23/2004 | WO2004112243A1 Improved load and line regulation using operational transconductance amplifier and operational amplifier in tandem |
| 12/23/2004 | WO2004112242A1 Power amplifier with power control loop |
| 12/23/2004 | WO2004112241A1 High-frequency power amplifier module |
| 12/23/2004 | WO2004112239A1 Ouput power detection circuit |
| 12/23/2004 | WO2004112237A1 Amplifier impedance matching |
| 12/23/2004 | WO2004112144A1 Dc amplifier and semiconductor integrated circuit thereof |
| 12/23/2004 | WO2004102790A3 Digital switching power amplifier |
| 12/23/2004 | WO2004100215A3 N-way rf power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division |