| Patents for H03F 1 - Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements (30,272) |
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| 12/31/2003 | CA2489796A1 Method for tuning an envelope tracking amplification system |
| 12/30/2003 | US6670864 Matching circuit including a MEMS capacitor |
| 12/30/2003 | US6670850 Ultra-wideband constant gain CMOS amplifier |
| 12/30/2003 | US6670849 System for closed loop power control using a linear or a non-linear power amplifier |
| 12/30/2003 | US6670842 Electromagnetic compatible regulator |
| 12/30/2003 | US6670796 Ultra fast and high efficiency inductive coil driver |
| 12/30/2003 | CA2378719C Biasing circuit for vgs drift and thermal compensation of a power device |
| 12/25/2003 | US20030234693 Type-II all-digital phase-locked loop (PLL) |
| 12/25/2003 | US20030234691 Current-voltage conversion circuit |
| 12/25/2003 | US20030234688 Power amplifier |
| 12/25/2003 | US20030234687 Wideband power amplifier linearization technique |
| 12/25/2003 | US20030234686 Impedance matching circuit |
| 12/25/2003 | US20030234685 Preamplifier system with selectable input impedance |
| 12/25/2003 | US20030234684 Low-noise amplifier device having negative feedback via a controlled current source, and method of using the amplifier device |
| 12/24/2003 | WO2003081833A3 Floating-gate analog circuit |
| 12/24/2003 | WO2002065634A3 Power amplifier system having frequency and amplifier failure compensation |
| 12/24/2003 | CN1463574A Portable power amplifier |
| 12/24/2003 | CN1463488A Transmitter with sliding compression point |
| 12/24/2003 | CN1463077A Input/output buffer |
| 12/24/2003 | CN1132409C Protection circuit for dynamic focus amplifier |
| 12/24/2003 | CN1132389C 功率正交调制系统和方法 Quadrature modulation system and method for power |
| 12/23/2003 | US6668165 Inverted super regenerative receiver |
| 12/23/2003 | US6668162 Method and an arrangement for compensating the temperature drift of a detector and a control signal in periodic control |
| 12/23/2003 | US6668028 Low-power CDMA receiver |
| 12/23/2003 | US6667661 Laser diode driver with high power efficiency |
| 12/23/2003 | US6667659 High efficiency amplifier |
| 12/23/2003 | US6667650 Current leakage compensation circuit and method |
| 12/23/2003 | US6667607 Power supply circuit for clamping excessive input voltage at predetermined voltage |
| 12/23/2003 | US6667549 Micro circuits with a sculpted ground plane |
| 12/18/2003 | WO2003105375A1 Satellite travelling-wave tube amplifier on-line non-linearity measurement |
| 12/18/2003 | WO2003105344A1 Power modulator |
| 12/18/2003 | WO2003105343A1 Power modulator |
| 12/18/2003 | WO2003105341A1 Active load arrangement |
| 12/18/2003 | WO2003105338A1 Power amplifying system with supply and bias enhancements |
| 12/18/2003 | WO2003105337A1 Coordinate rotation of pre-distortion vector in feedforward linearization amplification system |
| 12/18/2003 | WO2003105336A1 Distortion compensator |
| 12/18/2003 | WO2003105179A1 Inductive outputtube (10t) amplifier system |
| 12/18/2003 | WO2003105174A1 Electronic device and method of matching the impedance thereof |
| 12/18/2003 | WO2003034385A3 System and method for illumination timing compensation in response to row resistance |
| 12/18/2003 | WO2003034384A3 Method and system for precharging oled/pled displays with a precharge latency |
| 12/18/2003 | WO2002103899A3 Signal processing |
| 12/18/2003 | WO2002089318A3 Signal processing apparatus |
| 12/18/2003 | US20030231062 Efficient supply enhancement circuitry for power amplifiers |
| 12/18/2003 | US20030231061 Divided-voltage FET power amplifiers |
| 12/18/2003 | US20030231060 Output distortion correction amplifier system |
| 12/18/2003 | US20030231058 Transmission amplifier |
| 12/18/2003 | US20030231057 Digitally controllable nonlinear pre-equalizer |
| 12/18/2003 | US20030231055 Impedance matching L w N ise amplifier having a bypass switch |
| 12/17/2003 | EP1372361A1 Method and apparatus for generating a periodic waveform |
| 12/17/2003 | EP1371134A2 High-frequency amplifier circuit having a directly-connected bias circuit |
| 12/17/2003 | EP0852844B1 Circuit arrangement comprising a power amplifier stage |
| 12/17/2003 | CN2593464Y Current mode transconductance linear audio-frequency amplifier |
| 12/17/2003 | CN1462504A High efficiency switching amplifiers |
| 12/17/2003 | CN1462153A 功率放大器 PA |
| 12/17/2003 | CN1462113A Amplifier circuit, transmission device, amplification method and transmission method |
| 12/17/2003 | CN1131588C 功率放大器 PA |
| 12/17/2003 | CN1131587C Feed forward amplifier |
| 12/16/2003 | US6665525 High-level modulation method and apparatus |
| 12/16/2003 | US6665399 High-efficiency line driver |
| 12/16/2003 | US6665339 Method and apparatus for reducing oscillator pull in a CMOS wireless transceiver integrated circuit |
| 12/16/2003 | US6665159 Semiconductor integrated circuit device |
| 12/16/2003 | US6664869 Delay line filters using multiple in-line four-input couplers |
| 12/16/2003 | US6664857 Two-stage operational amplifier |
| 12/16/2003 | US6664856 Circuit configuration for setting the operating point of a radiofrequency transistor and amplifier circuit |
| 12/16/2003 | US6664844 Temperature compensation in electronic devices |
| 12/11/2003 | WO2003103167A1 Table reference predistortor |
| 12/11/2003 | WO2003103166A1 Distortion compenasator |
| 12/11/2003 | WO2003103165A1 Distortion compensator |
| 12/11/2003 | WO2003103164A1 Adaptive controller |
| 12/11/2003 | WO2003103163A1 Distortion compensation apparatus |
| 12/11/2003 | WO2003103139A1 Feedback amplifier having amplified signal path and feedback signal path separated |
| 12/11/2003 | WO2003103138A1 Transresistance amplifier for a charged particle detector |
| 12/11/2003 | WO2003103137A1 Amplification device |
| 12/11/2003 | WO2003103136A1 Power amplifier with pre-distorter |
| 12/11/2003 | WO2003103135A1 An amplifier circuit, gyrator circuit, filter device and method for amplifying a signal |
| 12/11/2003 | WO2003103134A1 Efficient supply enhancement circuitry for power amplifiers |
| 12/11/2003 | WO2003103109A2 Power amplifiers |
| 12/11/2003 | WO2003005564A3 Method for adjusting the amplification of a high frequency signal |
| 12/11/2003 | WO2002015055A8 Data processing system |
| 12/11/2003 | US20030228856 Nonlinear distortion compensating device |
| 12/11/2003 | US20030228024 Shock sound prevention circuit |
| 12/11/2003 | US20030227756 Temperature characteristic compensation apparatus |
| 12/11/2003 | US20030227330 RF power amplifier employing bias circuit topologies for minimization of RF amplifier memory effects |
| 12/11/2003 | US20030227329 Method and device for biasing a transistor of a radio frequency amplifier stage |
| 12/11/2003 | US20030227328 Fast, stable overload recovery circuit and method |
| 12/11/2003 | US20030227325 Auxiliary amplifier in feedforward linearization amplification system |
| 12/11/2003 | US20030227324 Coordinate rotation of pre-distortion vector in feedforward linearization amplification system |
| 12/11/2003 | US20030227317 Circuit arrangement for a current-controlled resistor having an enlarged linear range |
| 12/10/2003 | EP1369997A2 Input/output buffer |
| 12/10/2003 | EP1369992A2 Amplifier and radio frequency tuner |
| 12/10/2003 | EP1369990A1 Canceling feedback resistor loading effect in a shunt-shunt feedback circuit |
| 12/10/2003 | EP1025638B1 Linearization method and amplifier arrangement |
| 12/10/2003 | CN2591867Y Larger power thermal connect-and-disconnect frequency modulation power amplifier |
| 12/10/2003 | CN2591866Y Sounding electric device and amplifier audio frequency connector |
| 12/10/2003 | CN1461431A Amplifier system with on-demand power supply boost |
| 12/10/2003 | CN1130819C Apparatus and method of linearizing power amplifier mobile radio communication system |
| 12/10/2003 | CN1130818C Method and device for intermodulation compensation in multi-channel amplifiers |
| 12/10/2003 | CN1130771C Semiconductor integrated circuit havng input protective circuit |
| 12/09/2003 | US6662140 Fuzzy logic estimator for minimizing signal measurement inaccuracy effects in a signal processing system |
| 12/09/2003 | US6661311 Electric apparatus comprising a shield and transmission means with filtering of an electric signal on both sides of the shield |