| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 04/07/2005 | WO2005031966A1 Composite power amplifier |
| 04/07/2005 | WO2005031965A2 Stacked rf power amplifier |
| 04/07/2005 | US20050075088 Wireless communication semiconductor integrated circuit device and wireless communication system |
| 04/07/2005 | US20050075083 Coupling device for interfacing power amplifier and antenna in differential mode |
| 04/07/2005 | US20050073374 Method and apparatus to match output impedance of combined outphasing power amplifiers |
| 04/07/2005 | US20050073365 Method and apparatus for analyzing performance of a multi-stage radio frequency amplifier |
| 04/07/2005 | US20050073362 Linear decibel-scale variable gain amplifier |
| 04/07/2005 | US20050073360 Architecture and implementation methods of digital predistortion circuitry |
| 04/07/2005 | US20050073358 Differential amplifier circuit and drive circuit of liquid crystal display unit using the same |
| 04/07/2005 | US20050073357 Automatically adjusting low noise amplifier |
| 04/07/2005 | US20050073351 Switched-capacitor sample/hold having reduced amplifier slew-rate and settling time requirements |
| 04/07/2005 | US20050073339 Differential amplifier and bit-line sense amplifier adopting the same |
| 04/07/2005 | US20050073290 Method and apparatus for compensating for temperature drift in semiconductor processes and circuitry |
| 04/07/2005 | DE10346972A1 Eine Begrenzerschaltung verwendende Strom-Spannungs-Umwandlungsschaltung A limiter circuit used current-voltage conversion circuit |
| 04/07/2005 | DE10341320A1 Differenzverstärkerschaltung Differential amplifier circuit |
| 04/07/2005 | DE10334886B3 Signal evaluation circuit for AC or DC signals for environmental measurement applications using operational amplifiers for precision rectification of AC signals |
| 04/07/2005 | DE102004041335A1 Datentreiberschaltung und zugehöriger Halbleiterbaustein Data driver circuit and associated semiconductor device |
| 04/06/2005 | EP1521361A1 Modular amplifier arrangement |
| 04/06/2005 | EP1521360A1 Parallel amplifier arrangement |
| 04/06/2005 | EP1521156A1 Regulating system |
| 04/06/2005 | EP1520396A2 Even order distortion elimination in push-pull or differential amplifiers and circuits |
| 04/06/2005 | EP1520341A1 Amplifier circuit |
| 04/06/2005 | EP1520340A1 Blind linearization using cross-modulation |
| 04/06/2005 | EP1468487A4 A high performance bifet low noise amplifier |
| 04/06/2005 | EP1297621B1 High-frequency amplifier circuit with negative impedance cancellation |
| 04/06/2005 | CN1605153A 功率放大器 PA |
| 04/06/2005 | CN1605149A Isolated converter with synchronized switching leg |
| 04/06/2005 | CN1604465A Grounded-emitter circuit, and high-frequency receiver and high-frequency transmitter using the same |
| 04/06/2005 | CN1604464A Differential amplifier circuit and drive circuit of liquid crystal display unit using the same |
| 04/06/2005 | CN1604463A Differential amplifier and bit-line sense amplifier adopting the same |
| 04/06/2005 | CN1604462A Integrated power amplifier |
| 04/06/2005 | CN1604209A Current to voltage conversion circuit for photo detector integrated circuit employing gain switching circuit |
| 04/06/2005 | CN1604156A Operational amplifying circuit, driving circuit and driving method |
| 04/05/2005 | US6876843 Radio frequency amplifier with improved intermodulation performance |
| 04/05/2005 | US6876270 Symmetric microwave filter and microwave integrated circuit merging the same |
| 04/05/2005 | US6876260 Elevated front-end transimpedance amplifier |
| 04/05/2005 | US6876259 Fully integrated received signal strength indicator for a transimpedance amplifier |
| 04/05/2005 | US6876258 High-frequency amplifier and radio transmission device with circuit scale and current consumption reduced to achieve high efficiency |
| 04/05/2005 | US6876256 Balanced amplifier and filter using the same |
| 04/05/2005 | US6876255 Linear amplifier using non-linear CMOS capacitors |
| 04/05/2005 | US6876254 Dual amplifier circuit and TFT display driving circuit using the same |
| 04/05/2005 | US6876253 Amplifier for alternating signals superimposed on a continuous signal and method for amplifying such signals |
| 04/05/2005 | US6876235 Source follower capable of compensating the threshold voltage |
| 04/05/2005 | US6876233 DC cancellation apparatus and method |
| 04/05/2005 | US6876070 Repatterned integrated circuit chip package |
| 04/05/2005 | CA2262511C Arrangements and methods for generating a radio frequency signal |
| 03/31/2005 | WO2005029875A2 Digital convertible radio snr optimization |
| 03/31/2005 | WO2005029715A1 Method for controlling the gain of a signal in a transmitter |
| 03/31/2005 | WO2005029711A2 Single-ended input, differential output low noise amplifier |
| 03/31/2005 | WO2005029696A1 High performance low noise amplifier |
| 03/31/2005 | WO2005029695A1 Amplifier |
| 03/31/2005 | WO2005011105A3 Modulated triangular wave amplifier |
| 03/31/2005 | WO2005011104A3 Low-consumption voltage amplifier |
| 03/31/2005 | WO2004100356A3 Global loop integrating modulator |
| 03/31/2005 | US20050070244 Grounded-emitter circuit, and high-frequency receiver and high-frequency transmitter using the same |
| 03/31/2005 | US20050069049 Method of impulse acreage modulation digital power processing and its device |
| 03/31/2005 | US20050069027 Transmitter |
| 03/31/2005 | US20050068121 Synchronized controlled oscillation modulator |
| 03/31/2005 | US20050068114 High noise rejection voltage-controlled ring oscillator architecture |
| 03/31/2005 | US20050068109 Amplifier circuit with a shared current source |
| 03/31/2005 | US20050068107 Amplifier power control circuit |
| 03/31/2005 | US20050068106 Low-noise amplifying circuit |
| 03/31/2005 | US20050068105 Differential AB class amplifier circuit and drive circuit using the same |
| 03/31/2005 | US20050068104 Method and system for improving amplifier efficiency |
| 03/31/2005 | US20050068103 Stacked RF power amplifier |
| 03/31/2005 | US20050068100 Signal amplifier |
| 03/31/2005 | US20050068099 Bypass switch topology for low-noise amplifiers |
| 03/31/2005 | US20050068098 Multi-output switching amplifier |
| 03/31/2005 | US20050068097 Adaptive self-calibration method and apparatus |
| 03/31/2005 | US20050068095 Low pass filter |
| 03/31/2005 | US20050068093 Current mirror circuit |
| 03/31/2005 | US20050068087 Exponential conversion circuit |
| 03/31/2005 | US20050068066 Logic circuit |
| 03/31/2005 | DE102004036536A1 Linear-in-decibel variable gain amplifier |
| 03/30/2005 | EP1519481A1 Agc circuit |
| 03/30/2005 | EP1518342A1 Satellite travelling-wave tube amplifier on-line non-linearity measurement |
| 03/30/2005 | EP1518322A1 Fast cascaded class ab output stage with fet devices |
| 03/30/2005 | EP1374411B1 Real time correction of a digital pwm amplifier |
| 03/30/2005 | EP1206833A4 Integrated tunable high efficiency power amplifier |
| 03/30/2005 | CN1601929A Receiving circuit for free-space optical communication |
| 03/30/2005 | CN1601894A 电流镜电路 A current mirror circuit |
| 03/30/2005 | CN1601595A Driver circuit |
| 03/30/2005 | CN1195353C Pulse area modulation digital power processing method and device |
| 03/29/2005 | US6873830 Bias circuit and radio communication apparatus using same |
| 03/29/2005 | US6873278 Method and apparatus for use in switched capacitor systems |
| 03/29/2005 | US6873212 Integrated circuit radio frequency amplifier with notch filter |
| 03/29/2005 | US6873209 Input buffer circuit having function of canceling offset voltage |
| 03/29/2005 | US6873208 High-frequency amplifier |
| 03/29/2005 | US6873207 Power amplification circuit and communication device using the same |
| 03/29/2005 | US6873206 Charge amplifier device having fully integrated DC stabilization |
| 03/29/2005 | US6873205 Active continuous-time filter with increased dynamic range in the presence of blocker signals |
| 03/29/2005 | US6873194 Charge pump including a feedback device for use in a phase-locked loop |
| 03/24/2005 | WO2005027535A2 Band reject filters |
| 03/24/2005 | WO2005027342A1 Power amplifier with improved linearity and efficiency |
| 03/24/2005 | WO2005027297A2 Hybrid switched mode/linear power amplifier power supply for use in polar transmitter |
| 03/24/2005 | WO2005011108A3 Low-power high-psrr current-mode microphone pre-amplifier system and method |
| 03/24/2005 | WO2005002044B1 Integrated power amplifier circuit |
| 03/24/2005 | WO2004107563A3 High-efficiency amplifier, converter and methods |
| 03/24/2005 | US20050064830 Hybrid switched mode/linear power amplifier power supply for use in polar transmitter |
| 03/24/2005 | US20050063537 Differential input stage for electronic equipment, comprising means for reducing interference caused by a voltage or current in common mode |